diff --git a/.gitignore b/.gitignore index eca6d0868..58b172ada 100644 --- a/.gitignore +++ b/.gitignore @@ -24,11 +24,10 @@ compile_flags.txt *.err *.zip -*.err - *.pef *.dsk *.bin *.rsrc *.finf *.gdb + diff --git a/NTMakefile b/NTMakefile index c0fc4b069..63a4a2c9d 100644 --- a/NTMakefile +++ b/NTMakefile @@ -5,7 +5,6 @@ MW_CFLAGS = /Iinclude /Iexternal\libz\include /D_MILSKO /D_MILSKO_BUILD /DUSE_G MW_LDFLAGS = /DLL EXE_CFLAGS = /Iinclude EXE_LDFLAGS = - .SUFFIXES: .obj .c all: src\Mw.dll examples\basic\box.exe examples\basic\calculator.exe examples\basic\checkbox.exe examples\basic\clipboard.exe examples\basic\colorpicker.exe examples\basic\combobox.exe examples\basic\example.exe examples\basic\filechooser.exe examples\basic\image.exe examples\basic\listbox.exe examples\basic\messagebox.exe examples\basic\periodic.exe examples\basic\progressbar.exe examples\basic\radiobox.exe examples\basic\rotate.exe examples\basic\scrollbar.exe examples\basic\sevensegment.exe examples\basic\subwindow.exe examples\basic\tab.exe examples\basic\treeview.exe examples\basic\viewport.exe examples\gldemos\boing.exe examples\gldemos\clock.exe examples\gldemos\cube.exe examples\gldemos\gears.exe examples\gldemos\triangle.exe examples\gldemos\tripaint.exe lib: src\Mw.dll diff --git a/WatMakefile b/WatMakefile index 504abeefb..4533f3c2f 100644 --- a/WatMakefile +++ b/WatMakefile @@ -1,21 +1,10 @@ -!ifndef %mw16 CC = wcc386 -bt=nt -q -!else -CC = wcc -bt=windows -q -!endif LD = wlink option quiet -!ifndef %mw16 MW_CFLAGS = -bd -i=include -i=external/libz/include -d_MILSKO -d_MILSKO_BUILD -dUSE_GDI -dUSE_STB_IMAGE -dSTBI_NO_SIMD -dUSE_GDI_TEXT -dMW_OPENGL MW_LDFLAGS = system nt_dll EXE_CFLAGS = -i=include EXE_LDFLAGS = system nt -!else -MW_CFLAGS = -bd -i=include -i=external/libz/include -d_MILSKO -d_MILSKO_BUILD -dUSE_GDI -dSTBI_NO_SIMD -dNO_IMAGE -dMW_16 -MW_LDFLAGS = system windows_dll -EXE_LDFLAGS = system windows -!endif - all: src/Mw.dll examples/basic/box.exe examples/basic/calculator.exe examples/basic/checkbox.exe examples/basic/clipboard.exe examples/basic/colorpicker.exe examples/basic/combobox.exe examples/basic/example.exe examples/basic/filechooser.exe examples/basic/image.exe examples/basic/listbox.exe examples/basic/messagebox.exe examples/basic/periodic.exe examples/basic/progressbar.exe examples/basic/radiobox.exe examples/basic/rotate.exe examples/basic/scrollbar.exe examples/basic/sevensegment.exe examples/basic/subwindow.exe examples/basic/tab.exe examples/basic/treeview.exe examples/basic/viewport.exe examples/gldemos/boing.exe examples/gldemos/clock.exe examples/gldemos/cube.exe examples/gldemos/gears.exe examples/gldemos/triangle.exe examples/gldemos/tripaint.exe lib: src/Mw.dll examples: examples/basic/box.exe examples/basic/calculator.exe examples/basic/checkbox.exe examples/basic/clipboard.exe examples/basic/colorpicker.exe examples/basic/combobox.exe examples/basic/example.exe examples/basic/filechooser.exe examples/basic/image.exe examples/basic/listbox.exe examples/basic/messagebox.exe examples/basic/periodic.exe examples/basic/progressbar.exe examples/basic/radiobox.exe examples/basic/rotate.exe examples/basic/scrollbar.exe examples/basic/sevensegment.exe examples/basic/subwindow.exe examples/basic/tab.exe examples/basic/treeview.exe examples/basic/viewport.exe examples/gldemos/boing.exe examples/gldemos/clock.exe examples/gldemos/cube.exe examples/gldemos/gears.exe examples/gldemos/triangle.exe examples/gldemos/tripaint.exe @@ -330,14 +319,8 @@ examples/gldemos/tripaint.obj: examples/gldemos/tripaint.c $(CC) $(EXE_CFLAGS) -fo=$@ examples/gldemos/tripaint.c -!ifndef %mw16 src/Mw.dll: external/libz/src/adler32.obj external/libz/src/compress.obj external/libz/src/crc32.obj external/libz/src/deflate.obj external/libz/src/gzclose.obj external/libz/src/gzlib.obj external/libz/src/gzread.obj external/libz/src/gzwrite.obj external/libz/src/infback.obj external/libz/src/inffast.obj external/libz/src/inflate.obj external/libz/src/inftrees.obj external/libz/src/trees.obj external/libz/src/uncompr.obj external/libz/src/zutil.obj external/stb_ds.obj external/stb_image.obj external/stb_truetype.obj src/abstract/charset.obj src/abstract/directory.obj src/abstract/dynamic.obj src/abstract/time.obj src/backend/gdi.obj src/color.obj src/core.obj src/cursor/arrow.obj src/cursor/cross.obj src/cursor/default.obj src/cursor/hidden.obj src/cursor/text.obj src/default.obj src/dialog/colorpicker.obj src/dialog/directorychooser.obj src/dialog/filechooser.obj src/dialog/messagebox.obj src/draw.obj src/icon/back.obj src/icon/clock.obj src/icon/computer.obj src/icon/directory.obj src/icon/down.obj src/icon/error.obj src/icon/file.obj src/icon/forward.obj src/icon/info.obj src/icon/left.obj src/icon/news.obj src/icon/note.obj src/icon/right.obj src/icon/search.obj src/icon/up.obj src/icon/warning.obj src/lowlevel.obj src/string.obj src/text/font/boldfont.obj src/text/font/boldmonottf.obj src/text/font/boldttf.obj src/text/font/font.obj src/text/font/monottf.obj src/text/font/ttf.obj src/text/ft2.obj src/text/gdi.obj src/text/stbtt.obj src/text/text.obj src/truetype.obj src/unicode.obj src/widget/box.obj src/widget/button.obj src/widget/calendar.obj src/widget/checkbox.obj src/widget/combobox.obj src/widget/entry.obj src/widget/frame.obj src/widget/image.obj src/widget/label.obj src/widget/listbox.obj src/widget/menu.obj src/widget/numberentry.obj src/widget/opengl.obj src/widget/progressbar.obj src/widget/radiobox.obj src/widget/scrollbar.obj src/widget/separator.obj src/widget/submenu.obj src/widget/subwindow.obj src/widget/tab.obj src/widget/table.obj src/widget/treeview.obj src/widget/viewport.obj src/widget/window.obj $(LD) $(MW_LDFLAGS) option implib=src/Mw.lib name $@ file external/libz/src/adler32.obj file external/libz/src/compress.obj file external/libz/src/crc32.obj file external/libz/src/deflate.obj file external/libz/src/gzclose.obj file external/libz/src/gzlib.obj file external/libz/src/gzread.obj file external/libz/src/gzwrite.obj file external/libz/src/infback.obj file external/libz/src/inffast.obj file external/libz/src/inflate.obj file external/libz/src/inftrees.obj file external/libz/src/trees.obj file external/libz/src/uncompr.obj file external/libz/src/zutil.obj file external/stb_ds.obj file external/stb_image.obj file external/stb_truetype.obj file src/abstract/charset.obj file src/abstract/directory.obj file src/abstract/dynamic.obj file src/abstract/time.obj file src/backend/gdi.obj file src/color.obj file src/core.obj file src/cursor/arrow.obj file src/cursor/cross.obj file src/cursor/default.obj file src/cursor/hidden.obj file src/cursor/text.obj file src/default.obj file src/dialog/colorpicker.obj file src/dialog/directorychooser.obj file src/dialog/filechooser.obj file src/dialog/messagebox.obj file src/draw.obj file src/icon/back.obj file src/icon/clock.obj file src/icon/computer.obj file src/icon/directory.obj file src/icon/down.obj file src/icon/error.obj file src/icon/file.obj file src/icon/forward.obj file src/icon/info.obj file src/icon/left.obj file src/icon/news.obj file src/icon/note.obj file src/icon/right.obj file src/icon/search.obj file src/icon/up.obj file src/icon/warning.obj file src/lowlevel.obj file src/string.obj file src/text/font/boldfont.obj file src/text/font/boldmonottf.obj file src/text/font/boldttf.obj file src/text/font/font.obj file src/text/font/monottf.obj file src/text/font/ttf.obj file src/text/ft2.obj file src/text/gdi.obj file src/text/stbtt.obj file src/text/text.obj file src/truetype.obj file src/unicode.obj file src/widget/box.obj file src/widget/button.obj file src/widget/calendar.obj file src/widget/checkbox.obj file src/widget/combobox.obj file src/widget/entry.obj file src/widget/frame.obj file src/widget/image.obj file src/widget/label.obj file src/widget/listbox.obj file src/widget/menu.obj file src/widget/numberentry.obj file src/widget/opengl.obj file src/widget/progressbar.obj file src/widget/radiobox.obj file src/widget/scrollbar.obj file src/widget/separator.obj file src/widget/submenu.obj file src/widget/subwindow.obj file src/widget/tab.obj file src/widget/table.obj file src/widget/treeview.obj file src/widget/viewport.obj file src/widget/window.obj library clib3r.lib library opengl32.lib library gdi32.lib library ole32.lib library uuid.lib library user32.lib library advapi32.lib -!else -src/Mw.dll: external/libz/src/adler32.obj external/libz/src/compress.obj external/libz/src/crc32.obj external/libz/src/deflate.obj external/libz/src/gzclose.obj external/libz/src/gzlib.obj external/libz/src/gzread.obj external/libz/src/gzwrite.obj external/libz/src/infback.obj external/libz/src/inffast.obj external/libz/src/inflate.obj external/libz/src/inftrees.obj external/libz/src/trees.obj external/libz/src/uncompr.obj external/libz/src/zutil.obj external/stb_ds.obj external/stb_image.obj external/stb_truetype.obj src/abstract/charset.obj src/abstract/directory.obj src/abstract/dynamic.obj src/abstract/time.obj src/backend/gdi.obj src/color.obj src/core.obj src/cursor/arrow.obj src/cursor/cross.obj src/cursor/default.obj src/cursor/hidden.obj src/cursor/text.obj src/default.obj src/dialog/colorpicker.obj src/dialog/directorychooser.obj src/dialog/filechooser.obj src/dialog/messagebox.obj src/draw.obj src/icon/back.obj src/icon/clock.obj src/icon/computer.obj src/icon/directory.obj src/icon/down.obj src/icon/error.obj src/icon/file.obj src/icon/forward.obj src/icon/info.obj src/icon/left.obj src/icon/news.obj src/icon/note.obj src/icon/right.obj src/icon/search.obj src/icon/up.obj src/icon/warning.obj src/lowlevel.obj src/string.obj src/text/font/boldfont.obj src/text/font/boldmonottf.obj src/text/font/boldttf.obj src/text/font/font.obj src/text/font/monottf.obj src/text/font/ttf.obj src/text/ft2.obj src/text/gdi.obj src/text/stbtt.obj src/text/text.obj src/truetype.obj src/unicode.obj src/widget/box.obj src/widget/button.obj src/widget/calendar.obj src/widget/checkbox.obj src/widget/combobox.obj src/widget/entry.obj src/widget/frame.obj src/widget/image.obj src/widget/label.obj src/widget/listbox.obj src/widget/menu.obj src/widget/numberentry.obj src/widget/opengl.obj src/widget/progressbar.obj src/widget/radiobox.obj src/widget/scrollbar.obj src/widget/separator.obj src/widget/submenu.obj src/widget/subwindow.obj src/widget/tab.obj src/widget/table.obj src/widget/treeview.obj src/widget/viewport.obj src/widget/window.obj - $(LD) $(MW_LDFLAGS) option implib=src/Mw.lib name $@ file external/libz/src/adler32.obj file external/libz/src/compress.obj file external/libz/src/crc32.obj file external/libz/src/deflate.obj file external/libz/src/gzclose.obj file external/libz/src/gzlib.obj file external/libz/src/gzread.obj file external/libz/src/gzwrite.obj file external/libz/src/infback.obj file external/libz/src/inffast.obj file external/libz/src/inflate.obj file external/libz/src/inftrees.obj file external/libz/src/trees.obj file external/libz/src/uncompr.obj file external/libz/src/zutil.obj file external/stb_ds.obj file external/stb_image.obj file external/stb_truetype.obj file src/abstract/charset.obj file src/abstract/directory.obj file src/abstract/dynamic.obj file src/abstract/time.obj file src/backend/gdi.obj file src/color.obj file src/core.obj file src/cursor/arrow.obj file src/cursor/cross.obj file src/cursor/default.obj file src/cursor/hidden.obj file src/cursor/text.obj file src/default.obj file src/dialog/colorpicker.obj file src/dialog/directorychooser.obj file src/dialog/filechooser.obj file src/dialog/messagebox.obj file src/draw.obj file src/icon/back.obj file src/icon/clock.obj file src/icon/computer.obj file src/icon/directory.obj file src/icon/down.obj file src/icon/error.obj file src/icon/file.obj file src/icon/forward.obj file src/icon/info.obj file src/icon/left.obj file src/icon/news.obj file src/icon/note.obj file src/icon/right.obj file src/icon/search.obj file src/icon/up.obj file src/icon/warning.obj file src/lowlevel.obj file src/string.obj file src/text/font/boldfont.obj file src/text/font/boldmonottf.obj file src/text/font/boldttf.obj file src/text/font/font.obj file src/text/font/monottf.obj file src/text/font/ttf.obj file src/text/ft2.obj file src/text/gdi.obj file src/text/stbtt.obj file src/text/text.obj file src/truetype.obj file src/unicode.obj file src/widget/box.obj file src/widget/button.obj file src/widget/calendar.obj file src/widget/checkbox.obj file src/widget/combobox.obj file src/widget/entry.obj file src/widget/frame.obj file src/widget/image.obj file src/widget/label.obj file src/widget/listbox.obj file src/widget/menu.obj file src/widget/numberentry.obj file src/widget/opengl.obj file src/widget/progressbar.obj file src/widget/radiobox.obj file src/widget/scrollbar.obj file src/widget/separator.obj file src/widget/submenu.obj file src/widget/subwindow.obj file src/widget/tab.obj file src/widget/table.obj file src/widget/treeview.obj file src/widget/viewport.obj file src/widget/window.obj library clib3r.lib library clibs.lib - -!endif diff --git a/examples/basic/colorpicker.c b/examples/basic/colorpicker.c index 1a5f423ee..dbce7fe2b 100644 --- a/examples/basic/colorpicker.c +++ b/examples/basic/colorpicker.c @@ -2,16 +2,8 @@ MwWidget fpicker; MwWidget window; - -/* This example does nothing on Win16 because we don't support the color picker on it (yet?) */ -#ifdef MW_16 -MwWidget missing_text; -#else MwWidget button; -#endif -/* don't bother with color picker on 16-bit */ -#ifndef MW_16 void MWAPI file_callback(MwWidget handle, void* user_data, void* call_data) { char hexColor[8]; MwRGB* rgb = call_data; @@ -37,7 +29,6 @@ void MWAPI file_picker(MwWidget handle, void* user_data, void* call_data) { MwSetText(cpicker, MwNbackground, MwGetInteger(cpicker, MwNdarkTheme) ? MwDefaultDarkBackground : MwDefaultBackground); } -#endif int main() { MwLibraryInit(); @@ -46,18 +37,12 @@ int main() { MwDEFAULT, 640, 480, MwNtitle, "color picker", NULL); MwSetText(window, MwNbackground, MwGetInteger(window, MwNdarkTheme) ? MwDefaultBackground : MwDefaultDarkBackground); -#ifndef MW_16 button = MwVaCreateWidget(MwButtonClass, "button", window, 160, 180, 320, 120, MwNtext, "change window background", NULL); MwSetText(button, MwNbackground, MwGetInteger(window, MwNdarkTheme) ? MwDefaultBackground : MwDefaultDarkBackground); MwAddUserHandler(button, MwNactivateHandler, file_picker, NULL); -#else - missing_text = MwVaCreateWidget(MwLabelClass, NULL, window, 160, 180, 320, 120, - MwNtext, "Color picker doesn't yet exist on 16-bit Windows", - NULL); -#endif MwLoop(window); } diff --git a/external/stb_ds.h b/external/stb_ds.h index c58b00f62..e84c82d1d 100644 --- a/external/stb_ds.h +++ b/external/stb_ds.h @@ -71,80 +71,80 @@ DOCUMENTATION Non-function interface: Declare an empty dynamic array of type T - T* foo = NULL; + T* foo = NULL; Access the i'th item of a dynamic array 'foo' of type T, T* foo: - foo[i] + foo[i] Functions (actually macros) arrfree: - void arrfree(T*); - Frees the array. + void arrfree(T*); + Frees the array. arrlen: - ptrdiff_t arrlen(T*); - Returns the number of elements in the array. + ptrdiff_t arrlen(T*); + Returns the number of elements in the array. arrlenu: - size_t arrlenu(T*); - Returns the number of elements in the array as an unsigned type. + size_t arrlenu(T*); + Returns the number of elements in the array as an unsigned type. arrpop: - T arrpop(T* a) - Removes the final element of the array and returns it. + T arrpop(T* a) + Removes the final element of the array and returns it. arrput: - T arrput(T* a, T b); - Appends the item b to the end of array a. Returns b. + T arrput(T* a, T b); + Appends the item b to the end of array a. Returns b. arrins: - T arrins(T* a, int p, T b); - Inserts the item b into the middle of array a, into a[p], - moving the rest of the array over. Returns b. + T arrins(T* a, int p, T b); + Inserts the item b into the middle of array a, into a[p], + moving the rest of the array over. Returns b. arrinsn: - void arrinsn(T* a, int p, int n); - Inserts n uninitialized items into array a starting at a[p], - moving the rest of the array over. + void arrinsn(T* a, int p, int n); + Inserts n uninitialized items into array a starting at a[p], + moving the rest of the array over. arraddnptr: - T* arraddnptr(T* a, int n) - Appends n uninitialized items onto array at the end. - Returns a pointer to the first uninitialized item added. + T* arraddnptr(T* a, int n) + Appends n uninitialized items onto array at the end. + Returns a pointer to the first uninitialized item added. arraddnindex: - size_t arraddnindex(T* a, int n) - Appends n uninitialized items onto array at the end. - Returns the index of the first uninitialized item added. + size_t arraddnindex(T* a, int n) + Appends n uninitialized items onto array at the end. + Returns the index of the first uninitialized item added. arrdel: - void arrdel(T* a, int p); - Deletes the element at a[p], moving the rest of the array over. + void arrdel(T* a, int p); + Deletes the element at a[p], moving the rest of the array over. arrdeln: - void arrdeln(T* a, int p, int n); - Deletes n elements starting at a[p], moving the rest of the array over. + void arrdeln(T* a, int p, int n); + Deletes n elements starting at a[p], moving the rest of the array over. arrdelswap: - void arrdelswap(T* a, int p); - Deletes the element at a[p], replacing it with the element from - the end of the array. O(1) performance. + void arrdelswap(T* a, int p); + Deletes the element at a[p], replacing it with the element from + the end of the array. O(1) performance. arrsetlen: - void arrsetlen(T* a, int n); - Changes the length of the array to n. Allocates uninitialized - slots at the end if necessary. + void arrsetlen(T* a, int n); + Changes the length of the array to n. Allocates uninitialized + slots at the end if necessary. arrsetcap: - size_t arrsetcap(T* a, int n); - Sets the length of allocated storage to at least n. It will not - change the length of the array. + size_t arrsetcap(T* a, int n); + Sets the length of allocated storage to at least n. It will not + change the length of the array. arrcap: - size_t arrcap(T* a); - Returns the number of total elements the array can contain without - needing to be reallocated. + size_t arrcap(T* a); + Returns the number of total elements the array can contain without + needing to be reallocated. Hash maps & String hash maps @@ -155,140 +155,140 @@ DOCUMENTATION Special interface: stbds_rand_seed: - void stbds_rand_seed(size_t seed); - For security against adversarially chosen data, you should seed the - library with a strong random number. Or at least seed it with time(). + void stbds_rand_seed(size_t seed); + For security against adversarially chosen data, you should seed the + library with a strong random number. Or at least seed it with time(). stbds_hash_string: - size_t stbds_hash_string(char *str, size_t seed); - Returns a hash value for a string. + size_t stbds_hash_string(char *str, size_t seed); + Returns a hash value for a string. stbds_hash_bytes: - size_t stbds_hash_bytes(void *p, size_t len, size_t seed); - These functions hash an arbitrary number of bytes. The function - uses a custom hash for 4- and 8-byte data, and a weakened version - of SipHash for everything else. On 64-bit platforms you can get - specification-compliant SipHash-2-4 on all data by defining - STBDS_SIPHASH_2_4, at a significant cost in speed. + size_t stbds_hash_bytes(void *p, size_t len, size_t seed); + These functions hash an arbitrary number of bytes. The function + uses a custom hash for 4- and 8-byte data, and a weakened version + of SipHash for everything else. On 64-bit platforms you can get + specification-compliant SipHash-2-4 on all data by defining + STBDS_SIPHASH_2_4, at a significant cost in speed. Non-function interface: Declare an empty hash map of type T - T* foo = NULL; + T* foo = NULL; Access the i'th entry in a hash table T* foo: - foo[i] + foo[i] Function interface (actually macros): hmfree shfree - void hmfree(T*); - void shfree(T*); - Frees the hashmap and sets the pointer to NULL. + void hmfree(T*); + void shfree(T*); + Frees the hashmap and sets the pointer to NULL. hmlen shlen - ptrdiff_t hmlen(T*) - ptrdiff_t shlen(T*) - Returns the number of elements in the hashmap. + ptrdiff_t hmlen(T*) + ptrdiff_t shlen(T*) + Returns the number of elements in the hashmap. hmlenu shlenu - size_t hmlenu(T*) - size_t shlenu(T*) - Returns the number of elements in the hashmap. + size_t hmlenu(T*) + size_t shlenu(T*) + Returns the number of elements in the hashmap. hmgeti shgeti hmgeti_ts - ptrdiff_t hmgeti(T*, TK key) - ptrdiff_t shgeti(T*, char* key) - ptrdiff_t hmgeti_ts(T*, TK key, ptrdiff_t tempvar) - Returns the index in the hashmap which has the key 'key', or -1 - if the key is not present. + ptrdiff_t hmgeti(T*, TK key) + ptrdiff_t shgeti(T*, char* key) + ptrdiff_t hmgeti_ts(T*, TK key, ptrdiff_t tempvar) + Returns the index in the hashmap which has the key 'key', or -1 + if the key is not present. hmget hmget_ts shget - TV hmget(T*, TK key) - TV shget(T*, char* key) - TV hmget_ts(T*, TK key, ptrdiff_t tempvar) - Returns the value corresponding to 'key' in the hashmap. - The structure must have a 'value' field + TV hmget(T*, TK key) + TV shget(T*, char* key) + TV hmget_ts(T*, TK key, ptrdiff_t tempvar) + Returns the value corresponding to 'key' in the hashmap. + The structure must have a 'value' field hmgets shgets - T hmgets(T*, TK key) - T shgets(T*, char* key) - Returns the structure corresponding to 'key' in the hashmap. + T hmgets(T*, TK key) + T shgets(T*, char* key) + Returns the structure corresponding to 'key' in the hashmap. hmgetp shgetp hmgetp_ts hmgetp_null shgetp_null - T* hmgetp(T*, TK key) - T* shgetp(T*, char* key) - T* hmgetp_ts(T*, TK key, ptrdiff_t tempvar) - T* hmgetp_null(T*, TK key) - T* shgetp_null(T*, char *key) - Returns a pointer to the structure corresponding to 'key' in - the hashmap. Functions ending in "_null" return NULL if the key - is not present in the hashmap; the others return a pointer to a - structure holding the default value (but not the searched-for key). + T* hmgetp(T*, TK key) + T* shgetp(T*, char* key) + T* hmgetp_ts(T*, TK key, ptrdiff_t tempvar) + T* hmgetp_null(T*, TK key) + T* shgetp_null(T*, char *key) + Returns a pointer to the structure corresponding to 'key' in + the hashmap. Functions ending in "_null" return NULL if the key + is not present in the hashmap; the others return a pointer to a + structure holding the default value (but not the searched-for key). hmdefault shdefault - TV hmdefault(T*, TV value) - TV shdefault(T*, TV value) - Sets the default value for the hashmap, the value which will be - returned by hmget/shget if the key is not present. + TV hmdefault(T*, TV value) + TV shdefault(T*, TV value) + Sets the default value for the hashmap, the value which will be + returned by hmget/shget if the key is not present. hmdefaults shdefaults - TV hmdefaults(T*, T item) - TV shdefaults(T*, T item) - Sets the default struct for the hashmap, the contents which will be - returned by hmgets/shgets if the key is not present. + TV hmdefaults(T*, T item) + TV shdefaults(T*, T item) + Sets the default struct for the hashmap, the contents which will be + returned by hmgets/shgets if the key is not present. hmput shput - TV hmput(T*, TK key, TV value) - TV shput(T*, char* key, TV value) - Inserts a pair into the hashmap. If the key is already - present in the hashmap, updates its value. + TV hmput(T*, TK key, TV value) + TV shput(T*, char* key, TV value) + Inserts a pair into the hashmap. If the key is already + present in the hashmap, updates its value. hmputs shputs - T hmputs(T*, T item) - T shputs(T*, T item) - Inserts a struct with T.key into the hashmap. If the struct is already - present in the hashmap, updates it. + T hmputs(T*, T item) + T shputs(T*, T item) + Inserts a struct with T.key into the hashmap. If the struct is already + present in the hashmap, updates it. hmdel shdel - int hmdel(T*, TK key) - int shdel(T*, char* key) - If 'key' is in the hashmap, deletes its entry and returns 1. - Otherwise returns 0. + int hmdel(T*, TK key) + int shdel(T*, char* key) + If 'key' is in the hashmap, deletes its entry and returns 1. + Otherwise returns 0. Function interface (actually macros) for strings only: sh_new_strdup - void sh_new_strdup(T*); - Overwrites the existing pointer with a newly allocated - string hashmap which will automatically allocate and free - each string key using realloc/free + void sh_new_strdup(T*); + Overwrites the existing pointer with a newly allocated + string hashmap which will automatically allocate and free + each string key using realloc/free sh_new_arena - void sh_new_arena(T*); - Overwrites the existing pointer with a newly allocated - string hashmap which will automatically allocate each string - key to a string arena. Every string key ever used by this - hash table remains in the arena until the arena is freed. - Additionally, any key which is deleted and reinserted will - be allocated multiple times in the string arena. + void sh_new_arena(T*); + Overwrites the existing pointer with a newly allocated + string hashmap which will automatically allocate each string + key to a string arena. Every string key ever used by this + hash table remains in the arena until the arena is freed. + Additionally, any key which is deleted and reinserted will + be allocated multiple times in the string arena. NOTES @@ -303,17 +303,17 @@ NOTES * The following are the only functions that are thread-safe on a single data structure, i.e. can be run in multiple threads simultaneously on the same data structure - hmlen shlen - hmlenu shlenu - hmget_ts shget_ts - hmgeti_ts shgeti_ts - hmgets_ts shgets_ts + hmlen shlen + hmlenu shlenu + hmget_ts shget_ts + hmgeti_ts shgeti_ts + hmgets_ts shgets_ts * You iterate over the contents of a dynamic array and a hashmap in exactly the same way, using arrlen/hmlen/shlen: for (i=0; i < arrlen(foo); ++i) - ... foo[i] ... + ... foo[i] ... * All operations except arrins/arrdel are O(1) amortized, but individual operations can be slow, so these data structures may not be suitable @@ -395,61 +395,61 @@ CREDITS #include #ifndef STBDS_NO_SHORT_NAMES -#define arrlen stbds_arrlen -#define arrlenu stbds_arrlenu -#define arrput stbds_arrput -#define arrpush stbds_arrput -#define arrpop stbds_arrpop -#define arrfree stbds_arrfree -#define arraddn stbds_arraddn // deprecated, use one of the following instead: -#define arraddnptr stbds_arraddnptr +#define arrlen stbds_arrlen +#define arrlenu stbds_arrlenu +#define arrput stbds_arrput +#define arrpush stbds_arrput +#define arrpop stbds_arrpop +#define arrfree stbds_arrfree +#define arraddn stbds_arraddn // deprecated, use one of the following instead: +#define arraddnptr stbds_arraddnptr #define arraddnindex stbds_arraddnindex -#define arrsetlen stbds_arrsetlen -#define arrlast stbds_arrlast -#define arrins stbds_arrins -#define arrinsn stbds_arrinsn -#define arrdel stbds_arrdel -#define arrdeln stbds_arrdeln -#define arrdelswap stbds_arrdelswap -#define arrcap stbds_arrcap -#define arrsetcap stbds_arrsetcap +#define arrsetlen stbds_arrsetlen +#define arrlast stbds_arrlast +#define arrins stbds_arrins +#define arrinsn stbds_arrinsn +#define arrdel stbds_arrdel +#define arrdeln stbds_arrdeln +#define arrdelswap stbds_arrdelswap +#define arrcap stbds_arrcap +#define arrsetcap stbds_arrsetcap -#define hmput stbds_hmput -#define hmputs stbds_hmputs -#define hmget stbds_hmget -#define hmget_ts stbds_hmget_ts -#define hmgets stbds_hmgets -#define hmgetp stbds_hmgetp -#define hmgetp_ts stbds_hmgetp_ts +#define hmput stbds_hmput +#define hmputs stbds_hmputs +#define hmget stbds_hmget +#define hmget_ts stbds_hmget_ts +#define hmgets stbds_hmgets +#define hmgetp stbds_hmgetp +#define hmgetp_ts stbds_hmgetp_ts #define hmgetp_null stbds_hmgetp_null -#define hmgeti stbds_hmgeti -#define hmgeti_ts stbds_hmgeti_ts -#define hmdel stbds_hmdel -#define hmlen stbds_hmlen -#define hmlenu stbds_hmlenu -#define hmfree stbds_hmfree -#define hmdefault stbds_hmdefault -#define hmdefaults stbds_hmdefaults +#define hmgeti stbds_hmgeti +#define hmgeti_ts stbds_hmgeti_ts +#define hmdel stbds_hmdel +#define hmlen stbds_hmlen +#define hmlenu stbds_hmlenu +#define hmfree stbds_hmfree +#define hmdefault stbds_hmdefault +#define hmdefaults stbds_hmdefaults -#define shput stbds_shput -#define shputi stbds_shputi -#define shputs stbds_shputs -#define shget stbds_shget -#define shgeti stbds_shgeti -#define shgets stbds_shgets -#define shgetp stbds_shgetp +#define shput stbds_shput +#define shputi stbds_shputi +#define shputs stbds_shputs +#define shget stbds_shget +#define shgeti stbds_shgeti +#define shgets stbds_shgets +#define shgetp stbds_shgetp #define shgetp_null stbds_shgetp_null -#define shdel stbds_shdel -#define shlen stbds_shlen -#define shlenu stbds_shlenu -#define shfree stbds_shfree -#define shdefault stbds_shdefault -#define shdefaults stbds_shdefaults -#define sh_new_arena stbds_sh_new_arena +#define shdel stbds_shdel +#define shlen stbds_shlen +#define shlenu stbds_shlenu +#define shfree stbds_shfree +#define shdefault stbds_shdefault +#define shdefaults stbds_shdefaults +#define sh_new_arena stbds_sh_new_arena #define sh_new_strdup stbds_sh_new_strdup -#define stralloc stbds_stralloc -#define strreset stbds_strreset +#define stralloc stbds_stralloc +#define strreset stbds_strreset #endif #if defined(STBDS_REALLOC) && !defined(STBDS_FREE) || !defined(STBDS_REALLOC) && defined(STBDS_FREE) @@ -457,14 +457,14 @@ CREDITS #endif #if !defined(STBDS_REALLOC) && !defined(STBDS_FREE) #include -#define STBDS_REALLOC(c, p, s) realloc(p, s) -#define STBDS_FREE(c, p) free(p) +#define STBDS_REALLOC(c,p,s) realloc(p,s) +#define STBDS_FREE(c,p) free(p) #endif #ifdef _MSC_VER -#define STBDS_NOTUSED(v) (void)(v) +#define STBDS_NOTUSED(v) (void)(v) #else -#define STBDS_NOTUSED(v) (void)sizeof(v) +#define STBDS_NOTUSED(v) (void)sizeof(v) #endif #ifdef __cplusplus @@ -475,13 +475,13 @@ extern "C" { extern void stbds_rand_seed(size_t seed); // these are the hash functions used internally if you want to test them or use them for other purposes -extern size_t stbds_hash_bytes(void* p, size_t len, size_t seed); -extern size_t stbds_hash_string(char* str, size_t seed); +extern size_t stbds_hash_bytes(void *p, size_t len, size_t seed); +extern size_t stbds_hash_string(char *str, size_t seed); // this is a simple string arena allocator, initialize with e.g. 'stbds_string_arena my_arena={0}'. typedef struct stbds_string_arena stbds_string_arena; -extern char* stbds_stralloc(stbds_string_arena* a, char* str); -extern void stbds_strreset(stbds_string_arena* a); +extern char * stbds_stralloc(stbds_string_arena *a, char *str); +extern void stbds_strreset(stbds_string_arena *a); // have to #define STBDS_UNIT_TESTS to call this extern void stbds_unit_tests(void); @@ -491,15 +491,15 @@ extern void stbds_unit_tests(void); // Everything below here is implementation details // -extern void* stbds_arrgrowf(void* a, size_t elemsize, size_t addlen, size_t min_cap); -extern void stbds_arrfreef(void* a); -extern void stbds_hmfree_func(void* p, size_t elemsize); -extern void* stbds_hmget_key(void* a, size_t elemsize, void* key, size_t keysize, int mode); -extern void* stbds_hmget_key_ts(void* a, size_t elemsize, void* key, size_t keysize, ptrdiff_t* temp, int mode); -extern void* stbds_hmput_default(void* a, size_t elemsize); -extern void* stbds_hmput_key(void* a, size_t elemsize, void* key, size_t keysize, int mode); -extern void* stbds_hmdel_key(void* a, size_t elemsize, void* key, size_t keysize, size_t keyoffset, int mode); -extern void* stbds_shmode_func(size_t elemsize, int mode); +extern void * stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap); +extern void stbds_arrfreef(void *a); +extern void stbds_hmfree_func(void *p, size_t elemsize); +extern void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode); +extern void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode); +extern void * stbds_hmput_default(void *a, size_t elemsize); +extern void * stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode); +extern void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode); +extern void * stbds_shmode_func(size_t elemsize, int mode); #ifdef __cplusplus } @@ -508,7 +508,7 @@ extern void* stbds_shmode_func(size_t elemsize, int mode); #if defined(__GNUC__) || defined(__clang__) #define STBDS_HAS_TYPEOF #ifdef __cplusplus -// #define STBDS_HAS_LITERAL_ARRAY // this is currently broken for clang +//#define STBDS_HAS_LITERAL_ARRAY // this is currently broken for clang #endif #endif @@ -520,214 +520,210 @@ extern void* stbds_shmode_func(size_t elemsize, int mode); // this macro takes the address of the argument, but on gcc/clang can accept rvalues #if defined(STBDS_HAS_LITERAL_ARRAY) && defined(STBDS_HAS_TYPEOF) -#if __clang__ -#define STBDS_ADDRESSOF(typevar, value) ((__typeof__(typevar)[1]){value}) // literal array decays to pointer to value + #if __clang__ + #define STBDS_ADDRESSOF(typevar, value) ((__typeof__(typevar)[1]){value}) // literal array decays to pointer to value + #else + #define STBDS_ADDRESSOF(typevar, value) ((typeof(typevar)[1]){value}) // literal array decays to pointer to value + #endif #else -#define STBDS_ADDRESSOF(typevar, value) ((typeof(typevar)[1]){value}) // literal array decays to pointer to value -#endif -#else -#define STBDS_ADDRESSOF(typevar, value) &(value) +#define STBDS_ADDRESSOF(typevar, value) &(value) #endif -#define STBDS_OFFSETOF(var, field) ((char*)&(var)->field - (char*)(var)) +#define STBDS_OFFSETOF(var,field) ((char *) &(var)->field - (char *) (var)) -#define stbds_header(t) ((stbds_array_header*)(t) - 1) -#define stbds_temp(t) stbds_header(t)->temp -#define stbds_temp_key(t) (*(char**)stbds_header(t)->hash_table) +#define stbds_header(t) ((stbds_array_header *) (t) - 1) +#define stbds_temp(t) stbds_header(t)->temp +#define stbds_temp_key(t) (*(char **) stbds_header(t)->hash_table) -#define stbds_arrsetcap(a, n) (stbds_arrgrow(a, 0, n)) -#define stbds_arrsetlen(a, n) ((stbds_arrcap(a) < (size_t)(n) ? stbds_arrsetcap((a), (size_t)(n)), 0 : 0), (a) ? stbds_header(a)->length = (size_t)(n) : 0) -#define stbds_arrcap(a) ((a) ? stbds_header(a)->capacity : 0) -#define stbds_arrlen(a) ((a) ? (ptrdiff_t)stbds_header(a)->length : 0) -#define stbds_arrlenu(a) ((a) ? stbds_header(a)->length : 0) -#define stbds_arrput(a, v) (stbds_arrmaybegrow(a, 1), (a)[stbds_header(a)->length++] = (v)) -#define stbds_arrpush stbds_arrput // synonym -#define stbds_arrpop(a) (stbds_header(a)->length--, (a)[stbds_header(a)->length]) -#define stbds_arraddn(a, n) ((void)(stbds_arraddnindex(a, n))) // deprecated, use one of the following instead: -#define stbds_arraddnptr(a, n) (stbds_arrmaybegrow(a, n), (n) ? (stbds_header(a)->length += (n), &(a)[stbds_header(a)->length - (n)]) : (a)) -#define stbds_arraddnindex(a, n) (stbds_arrmaybegrow(a, n), (n) ? (stbds_header(a)->length += (n), stbds_header(a)->length - (n)) : stbds_arrlen(a)) -#define stbds_arraddnoff stbds_arraddnindex -#define stbds_arrlast(a) ((a)[stbds_header(a)->length - 1]) -#define stbds_arrfree(a) ((void)((a) ? STBDS_FREE(NULL, stbds_header(a)) : (void)0), (a) = NULL) -#define stbds_arrdel(a, i) stbds_arrdeln(a, i, 1) -#define stbds_arrdeln(a, i, n) (memmove(&(a)[i], &(a)[(i) + (n)], sizeof *(a) * (stbds_header(a)->length - (n) - (i))), stbds_header(a)->length -= (n)) -#define stbds_arrdelswap(a, i) ((a)[i] = stbds_arrlast(a), stbds_header(a)->length -= 1) -#define stbds_arrinsn(a, i, n) (stbds_arraddn((a), (n)), memmove(&(a)[(i) + (n)], &(a)[i], sizeof *(a) * (stbds_header(a)->length - (n) - (i)))) -#define stbds_arrins(a, i, v) (stbds_arrinsn((a), (i), 1), (a)[i] = (v)) +#define stbds_arrsetcap(a,n) (stbds_arrgrow(a,0,n)) +#define stbds_arrsetlen(a,n) ((stbds_arrcap(a) < (size_t) (n) ? stbds_arrsetcap((a),(size_t)(n)),0 : 0), (a) ? stbds_header(a)->length = (size_t) (n) : 0) +#define stbds_arrcap(a) ((a) ? stbds_header(a)->capacity : 0) +#define stbds_arrlen(a) ((a) ? (ptrdiff_t) stbds_header(a)->length : 0) +#define stbds_arrlenu(a) ((a) ? stbds_header(a)->length : 0) +#define stbds_arrput(a,v) (stbds_arrmaybegrow(a,1), (a)[stbds_header(a)->length++] = (v)) +#define stbds_arrpush stbds_arrput // synonym +#define stbds_arrpop(a) (stbds_header(a)->length--, (a)[stbds_header(a)->length]) +#define stbds_arraddn(a,n) ((void)(stbds_arraddnindex(a, n))) // deprecated, use one of the following instead: +#define stbds_arraddnptr(a,n) (stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), &(a)[stbds_header(a)->length-(n)]) : (a)) +#define stbds_arraddnindex(a,n)(stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), stbds_header(a)->length-(n)) : stbds_arrlen(a)) +#define stbds_arraddnoff stbds_arraddnindex +#define stbds_arrlast(a) ((a)[stbds_header(a)->length-1]) +#define stbds_arrfree(a) ((void) ((a) ? STBDS_FREE(NULL,stbds_header(a)) : (void)0), (a)=NULL) +#define stbds_arrdel(a,i) stbds_arrdeln(a,i,1) +#define stbds_arrdeln(a,i,n) (memmove(&(a)[i], &(a)[(i)+(n)], sizeof *(a) * (stbds_header(a)->length-(n)-(i))), stbds_header(a)->length -= (n)) +#define stbds_arrdelswap(a,i) ((a)[i] = stbds_arrlast(a), stbds_header(a)->length -= 1) +#define stbds_arrinsn(a,i,n) (stbds_arraddn((a),(n)), memmove(&(a)[(i)+(n)], &(a)[i], sizeof *(a) * (stbds_header(a)->length-(n)-(i)))) +#define stbds_arrins(a,i,v) (stbds_arrinsn((a),(i),1), (a)[i]=(v)) -#define stbds_arrmaybegrow(a, n) ((!(a) || stbds_header(a)->length + (n) > stbds_header(a)->capacity) \ - ? (stbds_arrgrow(a, n, 0), 0) \ - : 0) +#define stbds_arrmaybegrow(a,n) ((!(a) || stbds_header(a)->length + (n) > stbds_header(a)->capacity) \ + ? (stbds_arrgrow(a,n,0),0) : 0) -#define stbds_arrgrow(a, b, c) ((a) = stbds_arrgrowf_wrapper((a), sizeof *(a), (b), (c))) +#define stbds_arrgrow(a,b,c) ((a) = stbds_arrgrowf_wrapper((a), sizeof *(a), (b), (c))) #define stbds_hmput(t, k, v) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*)STBDS_ADDRESSOF((t)->key, (k)), sizeof(t)->key, 0), \ - (t)[stbds_temp((t) - 1)].key = (k), \ - (t)[stbds_temp((t) - 1)].value = (v)) + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, 0), \ + (t)[stbds_temp((t)-1)].key = (k), \ + (t)[stbds_temp((t)-1)].value = (v)) #define stbds_hmputs(t, s) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), &(s).key, sizeof(s).key, STBDS_HM_BINARY), \ - (t)[stbds_temp((t) - 1)] = (s)) + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), &(s).key, sizeof (s).key, STBDS_HM_BINARY), \ + (t)[stbds_temp((t)-1)] = (s)) -#define stbds_hmgeti(t, k) \ - ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*)STBDS_ADDRESSOF((t)->key, (k)), sizeof(t)->key, STBDS_HM_BINARY), \ - stbds_temp((t) - 1)) +#define stbds_hmgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_HM_BINARY), \ + stbds_temp((t)-1)) -#define stbds_hmgeti_ts(t, k, temp) \ - ((t) = stbds_hmget_key_ts_wrapper((t), sizeof *(t), (void*)STBDS_ADDRESSOF((t)->key, (k)), sizeof(t)->key, &(temp), STBDS_HM_BINARY), \ - (temp)) +#define stbds_hmgeti_ts(t,k,temp) \ + ((t) = stbds_hmget_key_ts_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, &(temp), STBDS_HM_BINARY), \ + (temp)) #define stbds_hmgetp(t, k) \ - ((void)stbds_hmgeti(t, k), &(t)[stbds_temp((t) - 1)]) + ((void) stbds_hmgeti(t,k), &(t)[stbds_temp((t)-1)]) #define stbds_hmgetp_ts(t, k, temp) \ - ((void)stbds_hmgeti_ts(t, k, temp), &(t)[temp]) + ((void) stbds_hmgeti_ts(t,k,temp), &(t)[temp]) -#define stbds_hmdel(t, k) \ - (((t) = stbds_hmdel_key_wrapper((t), sizeof *(t), (void*)STBDS_ADDRESSOF((t)->key, (k)), sizeof(t)->key, STBDS_OFFSETOF((t), key), STBDS_HM_BINARY)), (t) ? stbds_temp((t) - 1) : 0) +#define stbds_hmdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_BINARY)),(t)?stbds_temp((t)-1):0) #define stbds_hmdefault(t, v) \ - ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1].value = (v)) + ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1].value = (v)) #define stbds_hmdefaults(t, s) \ - ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1] = (s)) + ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1] = (s)) -#define stbds_hmfree(p) \ - ((void)((p) != NULL ? stbds_hmfree_func((p) - 1, sizeof *(p)), 0 : 0), (p) = NULL) +#define stbds_hmfree(p) \ + ((void) ((p) != NULL ? stbds_hmfree_func((p)-1,sizeof*(p)),0 : 0),(p)=NULL) -#define stbds_hmgets(t, k) (*stbds_hmgetp(t, k)) -#define stbds_hmget(t, k) (stbds_hmgetp(t, k)->value) -#define stbds_hmget_ts(t, k, temp) (stbds_hmgetp_ts(t, k, temp)->value) -#define stbds_hmlen(t) ((t) ? (ptrdiff_t)stbds_header((t) - 1)->length - 1 : 0) -#define stbds_hmlenu(t) ((t) ? stbds_header((t) - 1)->length - 1 : 0) -#define stbds_hmgetp_null(t, k) (stbds_hmgeti(t, k) == -1 ? NULL : &(t)[stbds_temp((t) - 1)]) +#define stbds_hmgets(t, k) (*stbds_hmgetp(t,k)) +#define stbds_hmget(t, k) (stbds_hmgetp(t,k)->value) +#define stbds_hmget_ts(t, k, temp) (stbds_hmgetp_ts(t,k,temp)->value) +#define stbds_hmlen(t) ((t) ? (ptrdiff_t) stbds_header((t)-1)->length-1 : 0) +#define stbds_hmlenu(t) ((t) ? stbds_header((t)-1)->length-1 : 0) +#define stbds_hmgetp_null(t,k) (stbds_hmgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)]) #define stbds_shput(t, k, v) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(t)->key, STBDS_HM_STRING), \ - (t)[stbds_temp((t) - 1)].value = (v)) + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)].value = (v)) #define stbds_shputi(t, k, v) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(t)->key, STBDS_HM_STRING), \ - (t)[stbds_temp((t) - 1)].value = (v), stbds_temp((t) - 1)) + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)].value = (v), stbds_temp((t)-1)) #define stbds_shputs(t, s) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*)(s).key, sizeof(s).key, STBDS_HM_STRING), \ - (t)[stbds_temp((t) - 1)] = (s), \ - (t)[stbds_temp((t) - 1)].key = stbds_temp_key((t) - 1)) // above line overwrites whole structure, so must rewrite key here if it was allocated internally + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (s).key, sizeof (s).key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)] = (s), \ + (t)[stbds_temp((t)-1)].key = stbds_temp_key((t)-1)) // above line overwrites whole structure, so must rewrite key here if it was allocated internally #define stbds_pshput(t, p) \ - ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*)(p)->key, sizeof(p)->key, STBDS_HM_PTR_TO_STRING), \ - (t)[stbds_temp((t) - 1)] = (p)) + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (p)->key, sizeof (p)->key, STBDS_HM_PTR_TO_STRING), \ + (t)[stbds_temp((t)-1)] = (p)) -#define stbds_shgeti(t, k) \ - ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(t)->key, STBDS_HM_STRING), \ - stbds_temp((t) - 1)) +#define stbds_shgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + stbds_temp((t)-1)) -#define stbds_pshgeti(t, k) \ - ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(*(t))->key, STBDS_HM_PTR_TO_STRING), \ - stbds_temp((t) - 1)) +#define stbds_pshgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_HM_PTR_TO_STRING), \ + stbds_temp((t)-1)) #define stbds_shgetp(t, k) \ - ((void)stbds_shgeti(t, k), &(t)[stbds_temp((t) - 1)]) + ((void) stbds_shgeti(t,k), &(t)[stbds_temp((t)-1)]) #define stbds_pshget(t, k) \ - ((void)stbds_pshgeti(t, k), (t)[stbds_temp((t) - 1)]) + ((void) stbds_pshgeti(t,k), (t)[stbds_temp((t)-1)]) -#define stbds_shdel(t, k) \ - (((t) = stbds_hmdel_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(t)->key, STBDS_OFFSETOF((t), key), STBDS_HM_STRING)), (t) ? stbds_temp((t) - 1) : 0) -#define stbds_pshdel(t, k) \ - (((t) = stbds_hmdel_key_wrapper((t), sizeof *(t), (void*)(k), sizeof(*(t))->key, STBDS_OFFSETOF(*(t), key), STBDS_HM_PTR_TO_STRING)), (t) ? stbds_temp((t) - 1) : 0) +#define stbds_shdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_STRING)),(t)?stbds_temp((t)-1):0) +#define stbds_pshdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_OFFSETOF(*(t),key), STBDS_HM_PTR_TO_STRING)),(t)?stbds_temp((t)-1):0) -#define stbds_sh_new_arena(t) \ - ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_ARENA)) +#define stbds_sh_new_arena(t) \ + ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_ARENA)) #define stbds_sh_new_strdup(t) \ - ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_STRDUP)) + ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_STRDUP)) -#define stbds_shdefault(t, v) stbds_hmdefault(t, v) -#define stbds_shdefaults(t, s) stbds_hmdefaults(t, s) +#define stbds_shdefault(t, v) stbds_hmdefault(t,v) +#define stbds_shdefaults(t, s) stbds_hmdefaults(t,s) -#define stbds_shfree stbds_hmfree -#define stbds_shlenu stbds_hmlenu +#define stbds_shfree stbds_hmfree +#define stbds_shlenu stbds_hmlenu -#define stbds_shgets(t, k) (*stbds_shgetp(t, k)) -#define stbds_shget(t, k) (stbds_shgetp(t, k)->value) -#define stbds_shgetp_null(t, k) (stbds_shgeti(t, k) == -1 ? NULL : &(t)[stbds_temp((t) - 1)]) -#define stbds_shlen stbds_hmlen +#define stbds_shgets(t, k) (*stbds_shgetp(t,k)) +#define stbds_shget(t, k) (stbds_shgetp(t,k)->value) +#define stbds_shgetp_null(t,k) (stbds_shgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)]) +#define stbds_shlen stbds_hmlen typedef struct { - size_t length; - size_t capacity; - void* hash_table; - ptrdiff_t temp; + size_t length; + size_t capacity; + void * hash_table; + ptrdiff_t temp; } stbds_array_header; -typedef struct stbds_string_block { - struct stbds_string_block* next; - char storage[8]; +typedef struct stbds_string_block +{ + struct stbds_string_block *next; + char storage[8]; } stbds_string_block; -struct stbds_string_arena { - stbds_string_block* storage; - size_t remaining; - unsigned char block; - unsigned char mode; // this isn't used by the string arena itself +struct stbds_string_arena +{ + stbds_string_block *storage; + size_t remaining; + unsigned char block; + unsigned char mode; // this isn't used by the string arena itself }; -#define STBDS_HM_BINARY 0 -#define STBDS_HM_STRING 1 +#define STBDS_HM_BINARY 0 +#define STBDS_HM_STRING 1 -enum { - STBDS_SH_NONE, - STBDS_SH_DEFAULT, - STBDS_SH_STRDUP, - STBDS_SH_ARENA +enum +{ + STBDS_SH_NONE, + STBDS_SH_DEFAULT, + STBDS_SH_STRDUP, + STBDS_SH_ARENA }; #ifdef __cplusplus // in C we use implicit assignment from these void*-returning functions to T*. // in C++ these templates make the same code work -template -static T* stbds_arrgrowf_wrapper(T* a, size_t elemsize, size_t addlen, size_t min_cap) { - return (T*)stbds_arrgrowf((void*)a, elemsize, addlen, min_cap); +template static T * stbds_arrgrowf_wrapper(T *a, size_t elemsize, size_t addlen, size_t min_cap) { + return (T*)stbds_arrgrowf((void *)a, elemsize, addlen, min_cap); } -template -static T* stbds_hmget_key_wrapper(T* a, size_t elemsize, void* key, size_t keysize, int mode) { - return (T*)stbds_hmget_key((void*)a, elemsize, key, keysize, mode); +template static T * stbds_hmget_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) { + return (T*)stbds_hmget_key((void*)a, elemsize, key, keysize, mode); } -template -static T* stbds_hmget_key_ts_wrapper(T* a, size_t elemsize, void* key, size_t keysize, ptrdiff_t* temp, int mode) { - return (T*)stbds_hmget_key_ts((void*)a, elemsize, key, keysize, temp, mode); +template static T * stbds_hmget_key_ts_wrapper(T *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode) { + return (T*)stbds_hmget_key_ts((void*)a, elemsize, key, keysize, temp, mode); } -template -static T* stbds_hmput_default_wrapper(T* a, size_t elemsize) { - return (T*)stbds_hmput_default((void*)a, elemsize); +template static T * stbds_hmput_default_wrapper(T *a, size_t elemsize) { + return (T*)stbds_hmput_default((void *)a, elemsize); } -template -static T* stbds_hmput_key_wrapper(T* a, size_t elemsize, void* key, size_t keysize, int mode) { - return (T*)stbds_hmput_key((void*)a, elemsize, key, keysize, mode); +template static T * stbds_hmput_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) { + return (T*)stbds_hmput_key((void*)a, elemsize, key, keysize, mode); } -template -static T* stbds_hmdel_key_wrapper(T* a, size_t elemsize, void* key, size_t keysize, size_t keyoffset, int mode) { - return (T*)stbds_hmdel_key((void*)a, elemsize, key, keysize, keyoffset, mode); +template static T * stbds_hmdel_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode){ + return (T*)stbds_hmdel_key((void*)a, elemsize, key, keysize, keyoffset, mode); } -template -static T* stbds_shmode_func_wrapper(T*, size_t elemsize, int mode) { - return (T*)stbds_shmode_func(elemsize, mode); +template static T * stbds_shmode_func_wrapper(T *, size_t elemsize, int mode) { + return (T*)stbds_shmode_func(elemsize, mode); } #else -#define stbds_arrgrowf_wrapper stbds_arrgrowf -#define stbds_hmget_key_wrapper stbds_hmget_key -#define stbds_hmget_key_ts_wrapper stbds_hmget_key_ts -#define stbds_hmput_default_wrapper stbds_hmput_default -#define stbds_hmput_key_wrapper stbds_hmput_key -#define stbds_hmdel_key_wrapper stbds_hmdel_key -#define stbds_shmode_func_wrapper(t, e, m) stbds_shmode_func(e, m) +#define stbds_arrgrowf_wrapper stbds_arrgrowf +#define stbds_hmget_key_wrapper stbds_hmget_key +#define stbds_hmget_key_ts_wrapper stbds_hmget_key_ts +#define stbds_hmput_default_wrapper stbds_hmput_default +#define stbds_hmput_key_wrapper stbds_hmput_key +#define stbds_hmdel_key_wrapper stbds_hmdel_key +#define stbds_shmode_func_wrapper(t,e,m) stbds_shmode_func(e,m) #endif #endif // INCLUDE_STB_DS_H + ////////////////////////////////////////////////////////////////////////////// // // IMPLEMENTATION @@ -739,11 +735,11 @@ static T* stbds_shmode_func_wrapper(T*, size_t elemsize, int mode) { #ifndef STBDS_ASSERT #define STBDS_ASSERT_WAS_UNDEFINED -#define STBDS_ASSERT(x) ((void)0) +#define STBDS_ASSERT(x) ((void) 0) #endif #ifdef STBDS_STATISTICS -#define STBDS_STATS(x) x +#define STBDS_STATS(x) x size_t stbds_array_grow; size_t stbds_hash_grow; size_t stbds_hash_shrink; @@ -760,48 +756,50 @@ size_t stbds_rehash_items; // stbds_arr implementation // -// int *prev_allocs[65536]; -// int num_prev; +//int *prev_allocs[65536]; +//int num_prev; -void* stbds_arrgrowf(void* a, size_t elemsize, size_t addlen, size_t min_cap) { - stbds_array_header temp = {0}; // force debugging - void* b; - size_t min_len = stbds_arrlen(a) + addlen; - (void)sizeof(temp); +void *stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap) +{ + stbds_array_header temp={0}; // force debugging + void *b; + size_t min_len = stbds_arrlen(a) + addlen; + (void) sizeof(temp); - // compute the minimum capacity needed - if(min_len > min_cap) - min_cap = min_len; + // compute the minimum capacity needed + if (min_len > min_cap) + min_cap = min_len; - if(min_cap <= stbds_arrcap(a)) - return a; + if (min_cap <= stbds_arrcap(a)) + return a; - // increase needed capacity to guarantee O(1) amortized - if(min_cap < 2 * stbds_arrcap(a)) - min_cap = 2 * stbds_arrcap(a); - else if(min_cap < 4) - min_cap = 4; + // increase needed capacity to guarantee O(1) amortized + if (min_cap < 2 * stbds_arrcap(a)) + min_cap = 2 * stbds_arrcap(a); + else if (min_cap < 4) + min_cap = 4; - // if (num_prev < 65536) if (a) prev_allocs[num_prev++] = (int *) ((char *) a+1); - // if (num_prev == 2201) - // num_prev = num_prev; - b = STBDS_REALLOC(NULL, (a) ? stbds_header(a) : 0, elemsize * min_cap + sizeof(stbds_array_header)); - // if (num_prev < 65536) prev_allocs[num_prev++] = (int *) (char *) b; - b = (char*)b + sizeof(stbds_array_header); - if(a == NULL) { - stbds_header(b)->length = 0; - stbds_header(b)->hash_table = 0; - stbds_header(b)->temp = 0; - } else { - STBDS_STATS(++stbds_array_grow); - } - stbds_header(b)->capacity = min_cap; + //if (num_prev < 65536) if (a) prev_allocs[num_prev++] = (int *) ((char *) a+1); + //if (num_prev == 2201) + // num_prev = num_prev; + b = STBDS_REALLOC(NULL, (a) ? stbds_header(a) : 0, elemsize * min_cap + sizeof(stbds_array_header)); + //if (num_prev < 65536) prev_allocs[num_prev++] = (int *) (char *) b; + b = (char *) b + sizeof(stbds_array_header); + if (a == NULL) { + stbds_header(b)->length = 0; + stbds_header(b)->hash_table = 0; + stbds_header(b)->temp = 0; + } else { + STBDS_STATS(++stbds_array_grow); + } + stbds_header(b)->capacity = min_cap; - return b; + return b; } -void stbds_arrfreef(void* a) { - STBDS_FREE(NULL, stbds_header(a)); +void stbds_arrfreef(void *a) +{ + STBDS_FREE(NULL, stbds_header(a)); } // @@ -809,221 +807,227 @@ void stbds_arrfreef(void* a) { // #ifdef STBDS_INTERNAL_SMALL_BUCKET -#define STBDS_BUCKET_LENGTH 4 +#define STBDS_BUCKET_LENGTH 4 #else -#define STBDS_BUCKET_LENGTH 8 +#define STBDS_BUCKET_LENGTH 8 #endif -#define STBDS_BUCKET_SHIFT (STBDS_BUCKET_LENGTH == 8 ? 3 : 2) -#define STBDS_BUCKET_MASK (STBDS_BUCKET_LENGTH - 1) -#define STBDS_CACHE_LINE_SIZE 64 +#define STBDS_BUCKET_SHIFT (STBDS_BUCKET_LENGTH == 8 ? 3 : 2) +#define STBDS_BUCKET_MASK (STBDS_BUCKET_LENGTH-1) +#define STBDS_CACHE_LINE_SIZE 64 -#define STBDS_ALIGN_FWD(n, a) (((n) + (a) - 1) & ~((a) - 1)) +#define STBDS_ALIGN_FWD(n,a) (((n) + (a) - 1) & ~((a)-1)) typedef struct { - size_t hash[STBDS_BUCKET_LENGTH]; - ptrdiff_t index[STBDS_BUCKET_LENGTH]; + size_t hash [STBDS_BUCKET_LENGTH]; + ptrdiff_t index[STBDS_BUCKET_LENGTH]; } stbds_hash_bucket; // in 32-bit, this is one 64-byte cache line; in 64-bit, each array is one 64-byte cache line typedef struct { - char* temp_key; // this MUST be the first field of the hash table - size_t slot_count; - size_t used_count; - size_t used_count_threshold; - size_t used_count_shrink_threshold; - size_t tombstone_count; - size_t tombstone_count_threshold; - size_t seed; - size_t slot_count_log2; - stbds_string_arena string; - stbds_hash_bucket* storage; // not a separate allocation, just 64-byte aligned storage after this struct + char * temp_key; // this MUST be the first field of the hash table + size_t slot_count; + size_t used_count; + size_t used_count_threshold; + size_t used_count_shrink_threshold; + size_t tombstone_count; + size_t tombstone_count_threshold; + size_t seed; + size_t slot_count_log2; + stbds_string_arena string; + stbds_hash_bucket *storage; // not a separate allocation, just 64-byte aligned storage after this struct } stbds_hash_index; -#define STBDS_INDEX_EMPTY -1 -#define STBDS_INDEX_DELETED -2 -#define STBDS_INDEX_IN_USE(x) ((x) >= 0) +#define STBDS_INDEX_EMPTY -1 +#define STBDS_INDEX_DELETED -2 +#define STBDS_INDEX_IN_USE(x) ((x) >= 0) -#define STBDS_HASH_EMPTY 0 -#define STBDS_HASH_DELETED 1 +#define STBDS_HASH_EMPTY 0 +#define STBDS_HASH_DELETED 1 -static size_t stbds_hash_seed = 0x31415926; +static size_t stbds_hash_seed=0x31415926; -void stbds_rand_seed(size_t seed) { - stbds_hash_seed = seed; +void stbds_rand_seed(size_t seed) +{ + stbds_hash_seed = seed; } -#define stbds_load_32_or_64(var, temp, v32, v64_hi, v64_lo) \ - temp = v64_lo ^ v32, temp <<= 16, temp <<= 16, temp >>= 16, temp >>= 16, /* discard if 32-bit */ \ - var = v64_hi, var <<= 16, var <<= 16, /* discard if 32-bit */ \ - var ^= temp ^ v32 +#define stbds_load_32_or_64(var, temp, v32, v64_hi, v64_lo) \ + temp = v64_lo ^ v32, temp <<= 16, temp <<= 16, temp >>= 16, temp >>= 16, /* discard if 32-bit */ \ + var = v64_hi, var <<= 16, var <<= 16, /* discard if 32-bit */ \ + var ^= temp ^ v32 -#define STBDS_SIZE_T_BITS ((sizeof(size_t)) * 8) +#define STBDS_SIZE_T_BITS ((sizeof (size_t)) * 8) -static size_t stbds_probe_position(size_t hash, size_t slot_count, size_t slot_log2) { - size_t pos; - STBDS_NOTUSED(slot_log2); - pos = hash & (slot_count - 1); -#ifdef STBDS_INTERNAL_BUCKET_START - pos &= ~STBDS_BUCKET_MASK; -#endif - return pos; +static size_t stbds_probe_position(size_t hash, size_t slot_count, size_t slot_log2) +{ + size_t pos; + STBDS_NOTUSED(slot_log2); + pos = hash & (slot_count-1); + #ifdef STBDS_INTERNAL_BUCKET_START + pos &= ~STBDS_BUCKET_MASK; + #endif + return pos; } -static size_t stbds_log2(size_t slot_count) { - size_t n = 0; - while(slot_count > 1) { - slot_count >>= 1; - ++n; - } - return n; +static size_t stbds_log2(size_t slot_count) +{ + size_t n=0; + while (slot_count > 1) { + slot_count >>= 1; + ++n; + } + return n; } -static stbds_hash_index* stbds_make_hash_index(size_t slot_count, stbds_hash_index* ot) { - stbds_hash_index* t; - t = (stbds_hash_index*)STBDS_REALLOC(NULL, 0, (slot_count >> STBDS_BUCKET_SHIFT) * sizeof(stbds_hash_bucket) + sizeof(stbds_hash_index) + STBDS_CACHE_LINE_SIZE - 1); - t->storage = (stbds_hash_bucket*)STBDS_ALIGN_FWD((size_t)(t + 1), STBDS_CACHE_LINE_SIZE); - t->slot_count = slot_count; - t->slot_count_log2 = stbds_log2(slot_count); - t->tombstone_count = 0; - t->used_count = 0; +static stbds_hash_index *stbds_make_hash_index(size_t slot_count, stbds_hash_index *ot) +{ + stbds_hash_index *t; + t = (stbds_hash_index *) STBDS_REALLOC(NULL,0,(slot_count >> STBDS_BUCKET_SHIFT) * sizeof(stbds_hash_bucket) + sizeof(stbds_hash_index) + STBDS_CACHE_LINE_SIZE-1); + t->storage = (stbds_hash_bucket *) STBDS_ALIGN_FWD((size_t) (t+1), STBDS_CACHE_LINE_SIZE); + t->slot_count = slot_count; + t->slot_count_log2 = stbds_log2(slot_count); + t->tombstone_count = 0; + t->used_count = 0; -#if 0 // A1 + #if 0 // A1 t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink -#elif 1 // A2 - // t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow - // t->tombstone_count_threshold = slot_count* 3/16; // if tombstones are 3/16th of table, rebuild - // t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink + #elif 1 // A2 + //t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow + //t->tombstone_count_threshold = slot_count* 3/16; // if tombstones are 3/16th of table, rebuild + //t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink - // compute without overflowing - t->used_count_threshold = slot_count - (slot_count >> 2); - t->tombstone_count_threshold = (slot_count >> 3) + (slot_count >> 4); - t->used_count_shrink_threshold = slot_count >> 2; + // compute without overflowing + t->used_count_threshold = slot_count - (slot_count>>2); + t->tombstone_count_threshold = (slot_count>>3) + (slot_count>>4); + t->used_count_shrink_threshold = slot_count >> 2; -#elif 0 // B1 - t->used_count_threshold = slot_count * 13 / 16; // if 13/16th of table is occupied, grow - t->tombstone_count_threshold = slot_count * 2 / 16; // if tombstones are 2/16th of table, rebuild - t->used_count_shrink_threshold = slot_count * 5 / 16; // if table is only 5/16th full, shrink -#else // C1 - t->used_count_threshold = slot_count * 14 / 16; // if 14/16th of table is occupied, grow - t->tombstone_count_threshold = slot_count * 2 / 16; // if tombstones are 2/16th of table, rebuild - t->used_count_shrink_threshold = slot_count * 6 / 16; // if table is only 6/16th full, shrink -#endif - // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 - // Note that the larger tables have high variance as they were run fewer times - // A1 A2 B1 C1 - // 0.10ms : 0.10ms : 0.10ms : 0.11ms : 2,000 inserts creating 2K table - // 0.96ms : 0.95ms : 0.97ms : 1.04ms : 20,000 inserts creating 20K table - // 14.48ms : 14.46ms : 10.63ms : 11.00ms : 200,000 inserts creating 200K table - // 195.74ms : 196.35ms : 203.69ms : 214.92ms : 2,000,000 inserts creating 2M table - // 2193.88ms : 2209.22ms : 2285.54ms : 2437.17ms : 20,000,000 inserts creating 20M table - // 65.27ms : 53.77ms : 65.33ms : 65.47ms : 500,000 inserts & deletes in 2K table - // 72.78ms : 62.45ms : 71.95ms : 72.85ms : 500,000 inserts & deletes in 20K table - // 89.47ms : 77.72ms : 96.49ms : 96.75ms : 500,000 inserts & deletes in 200K table - // 97.58ms : 98.14ms : 97.18ms : 97.53ms : 500,000 inserts & deletes in 2M table - // 118.61ms : 119.62ms : 120.16ms : 118.86ms : 500,000 inserts & deletes in 20M table - // 192.11ms : 194.39ms : 196.38ms : 195.73ms : 500,000 inserts & deletes in 200M table + #elif 0 // B1 + t->used_count_threshold = slot_count*13/16; // if 13/16th of table is occupied, grow + t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild + t->used_count_shrink_threshold = slot_count* 5/16; // if table is only 5/16th full, shrink + #else // C1 + t->used_count_threshold = slot_count*14/16; // if 14/16th of table is occupied, grow + t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild + t->used_count_shrink_threshold = slot_count* 6/16; // if table is only 6/16th full, shrink + #endif + // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 + // Note that the larger tables have high variance as they were run fewer times + // A1 A2 B1 C1 + // 0.10ms : 0.10ms : 0.10ms : 0.11ms : 2,000 inserts creating 2K table + // 0.96ms : 0.95ms : 0.97ms : 1.04ms : 20,000 inserts creating 20K table + // 14.48ms : 14.46ms : 10.63ms : 11.00ms : 200,000 inserts creating 200K table + // 195.74ms : 196.35ms : 203.69ms : 214.92ms : 2,000,000 inserts creating 2M table + // 2193.88ms : 2209.22ms : 2285.54ms : 2437.17ms : 20,000,000 inserts creating 20M table + // 65.27ms : 53.77ms : 65.33ms : 65.47ms : 500,000 inserts & deletes in 2K table + // 72.78ms : 62.45ms : 71.95ms : 72.85ms : 500,000 inserts & deletes in 20K table + // 89.47ms : 77.72ms : 96.49ms : 96.75ms : 500,000 inserts & deletes in 200K table + // 97.58ms : 98.14ms : 97.18ms : 97.53ms : 500,000 inserts & deletes in 2M table + // 118.61ms : 119.62ms : 120.16ms : 118.86ms : 500,000 inserts & deletes in 20M table + // 192.11ms : 194.39ms : 196.38ms : 195.73ms : 500,000 inserts & deletes in 200M table - if(slot_count <= STBDS_BUCKET_LENGTH) - t->used_count_shrink_threshold = 0; - // to avoid infinite loop, we need to guarantee that at least one slot is empty and will terminate probes - STBDS_ASSERT(t->used_count_threshold + t->tombstone_count_threshold < t->slot_count); - STBDS_STATS(++stbds_hash_alloc); - if(ot) { - t->string = ot->string; - // reuse old seed so we can reuse old hashes so below "copy out old data" doesn't do any hashing - t->seed = ot->seed; - } else { - size_t a, b, temp; - memset(&t->string, 0, sizeof(t->string)); - t->seed = stbds_hash_seed; - // LCG - // in 32-bit, a = 2147001325 b = 715136305 - // in 64-bit, a = 2862933555777941757 b = 3037000493 - stbds_load_32_or_64(a, temp, 2147001325, 0x27bb2ee6, 0x87b0b0fd); - stbds_load_32_or_64(b, temp, 715136305, 0, 0xb504f32d); - stbds_hash_seed = stbds_hash_seed * a + b; - } + if (slot_count <= STBDS_BUCKET_LENGTH) + t->used_count_shrink_threshold = 0; + // to avoid infinite loop, we need to guarantee that at least one slot is empty and will terminate probes + STBDS_ASSERT(t->used_count_threshold + t->tombstone_count_threshold < t->slot_count); + STBDS_STATS(++stbds_hash_alloc); + if (ot) { + t->string = ot->string; + // reuse old seed so we can reuse old hashes so below "copy out old data" doesn't do any hashing + t->seed = ot->seed; + } else { + size_t a,b,temp; + memset(&t->string, 0, sizeof(t->string)); + t->seed = stbds_hash_seed; + // LCG + // in 32-bit, a = 2147001325 b = 715136305 + // in 64-bit, a = 2862933555777941757 b = 3037000493 + stbds_load_32_or_64(a,temp, 2147001325, 0x27bb2ee6, 0x87b0b0fd); + stbds_load_32_or_64(b,temp, 715136305, 0, 0xb504f32d); + stbds_hash_seed = stbds_hash_seed * a + b; + } - { - size_t i, j; - for(i = 0; i < slot_count >> STBDS_BUCKET_SHIFT; ++i) { - stbds_hash_bucket* b = &t->storage[i]; - for(j = 0; j < STBDS_BUCKET_LENGTH; ++j) - b->hash[j] = STBDS_HASH_EMPTY; - for(j = 0; j < STBDS_BUCKET_LENGTH; ++j) - b->index[j] = STBDS_INDEX_EMPTY; - } - } + { + size_t i,j; + for (i=0; i < slot_count >> STBDS_BUCKET_SHIFT; ++i) { + stbds_hash_bucket *b = &t->storage[i]; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) + b->hash[j] = STBDS_HASH_EMPTY; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) + b->index[j] = STBDS_INDEX_EMPTY; + } + } - // copy out the old data, if any - if(ot) { - size_t i, j; - t->used_count = ot->used_count; - for(i = 0; i < ot->slot_count >> STBDS_BUCKET_SHIFT; ++i) { - stbds_hash_bucket* ob = &ot->storage[i]; - for(j = 0; j < STBDS_BUCKET_LENGTH; ++j) { - if(STBDS_INDEX_IN_USE(ob->index[j])) { - size_t hash = ob->hash[j]; - size_t pos = stbds_probe_position(hash, t->slot_count, t->slot_count_log2); - size_t step = STBDS_BUCKET_LENGTH; - STBDS_STATS(++stbds_rehash_items); - for(;;) { - size_t limit, z; - stbds_hash_bucket* bucket; - bucket = &t->storage[pos >> STBDS_BUCKET_SHIFT]; - STBDS_STATS(++stbds_rehash_probes); + // copy out the old data, if any + if (ot) { + size_t i,j; + t->used_count = ot->used_count; + for (i=0; i < ot->slot_count >> STBDS_BUCKET_SHIFT; ++i) { + stbds_hash_bucket *ob = &ot->storage[i]; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) { + if (STBDS_INDEX_IN_USE(ob->index[j])) { + size_t hash = ob->hash[j]; + size_t pos = stbds_probe_position(hash, t->slot_count, t->slot_count_log2); + size_t step = STBDS_BUCKET_LENGTH; + STBDS_STATS(++stbds_rehash_items); + for (;;) { + size_t limit,z; + stbds_hash_bucket *bucket; + bucket = &t->storage[pos >> STBDS_BUCKET_SHIFT]; + STBDS_STATS(++stbds_rehash_probes); - for(z = pos & STBDS_BUCKET_MASK; z < STBDS_BUCKET_LENGTH; ++z) { - if(bucket->hash[z] == 0) { - bucket->hash[z] = hash; - bucket->index[z] = ob->index[j]; - goto done; - } - } + for (z=pos & STBDS_BUCKET_MASK; z < STBDS_BUCKET_LENGTH; ++z) { + if (bucket->hash[z] == 0) { + bucket->hash[z] = hash; + bucket->index[z] = ob->index[j]; + goto done; + } + } - limit = pos & STBDS_BUCKET_MASK; - for(z = 0; z < limit; ++z) { - if(bucket->hash[z] == 0) { - bucket->hash[z] = hash; - bucket->index[z] = ob->index[j]; - goto done; - } - } + limit = pos & STBDS_BUCKET_MASK; + for (z = 0; z < limit; ++z) { + if (bucket->hash[z] == 0) { + bucket->hash[z] = hash; + bucket->index[z] = ob->index[j]; + goto done; + } + } - pos += step; // quadratic probing - step += STBDS_BUCKET_LENGTH; - pos &= (t->slot_count - 1); - } - } - done:; - } - } - } + pos += step; // quadratic probing + step += STBDS_BUCKET_LENGTH; + pos &= (t->slot_count-1); + } + } + done: + ; + } + } + } - return t; + return t; } -#define STBDS_ROTATE_LEFT(val, n) (((val) << (n)) | ((val) >> (STBDS_SIZE_T_BITS - (n)))) -#define STBDS_ROTATE_RIGHT(val, n) (((val) >> (n)) | ((val) << (STBDS_SIZE_T_BITS - (n)))) +#define STBDS_ROTATE_LEFT(val, n) (((val) << (n)) | ((val) >> (STBDS_SIZE_T_BITS - (n)))) +#define STBDS_ROTATE_RIGHT(val, n) (((val) >> (n)) | ((val) << (STBDS_SIZE_T_BITS - (n)))) -size_t stbds_hash_string(char* str, size_t seed) { - size_t hash = seed; - while(*str) - hash = STBDS_ROTATE_LEFT(hash, 9) + (unsigned char)*str++; +size_t stbds_hash_string(char *str, size_t seed) +{ + size_t hash = seed; + while (*str) + hash = STBDS_ROTATE_LEFT(hash, 9) + (unsigned char) *str++; - // Thomas Wang 64-to-32 bit mix function, hopefully also works in 32 bits - hash ^= seed; - hash = (~hash) + (hash << 18); - hash ^= hash ^ STBDS_ROTATE_RIGHT(hash, 31); - hash = hash * 21; - hash ^= hash ^ STBDS_ROTATE_RIGHT(hash, 11); - hash += (hash << 6); - hash ^= STBDS_ROTATE_RIGHT(hash, 22); - return hash + seed; + // Thomas Wang 64-to-32 bit mix function, hopefully also works in 32 bits + hash ^= seed; + hash = (~hash) + (hash << 18); + hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,31); + hash = hash * 21; + hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,11); + hash += (hash << 6); + hash ^= STBDS_ROTATE_RIGHT(hash,22); + return hash+seed; } #ifdef STBDS_SIPHASH_2_4 @@ -1041,100 +1045,84 @@ typedef int STBDS_SIPHASH_2_4_can_only_be_used_in_64_bit_builds[sizeof(size_t) = #ifdef _MSC_VER #pragma warning(push) -#pragma warning(disable : 4127) // conditional expression is constant, for do..while(0) and sizeof()== +#pragma warning(disable:4127) // conditional expression is constant, for do..while(0) and sizeof()== #endif -static size_t stbds_siphash_bytes(void* p, size_t len, size_t seed) { - unsigned char* d = (unsigned char*)p; - size_t i, j; - size_t v0, v1, v2, v3, data; +static size_t stbds_siphash_bytes(void *p, size_t len, size_t seed) +{ + unsigned char *d = (unsigned char *) p; + size_t i,j; + size_t v0,v1,v2,v3, data; - // hash that works on 32- or 64-bit registers without knowing which we have - // (computes different results on 32-bit and 64-bit platform) - // derived from siphash, but on 32-bit platforms very different as it uses 4 32-bit state not 4 64-bit - v0 = ((((size_t)0x736f6d65 << 16) << 16) + 0x70736575) ^ seed; - v1 = ((((size_t)0x646f7261 << 16) << 16) + 0x6e646f6d) ^ ~seed; - v2 = ((((size_t)0x6c796765 << 16) << 16) + 0x6e657261) ^ seed; - v3 = ((((size_t)0x74656462 << 16) << 16) + 0x79746573) ^ ~seed; + // hash that works on 32- or 64-bit registers without knowing which we have + // (computes different results on 32-bit and 64-bit platform) + // derived from siphash, but on 32-bit platforms very different as it uses 4 32-bit state not 4 64-bit + v0 = ((((size_t) 0x736f6d65 << 16) << 16) + 0x70736575) ^ seed; + v1 = ((((size_t) 0x646f7261 << 16) << 16) + 0x6e646f6d) ^ ~seed; + v2 = ((((size_t) 0x6c796765 << 16) << 16) + 0x6e657261) ^ seed; + v3 = ((((size_t) 0x74656462 << 16) << 16) + 0x79746573) ^ ~seed; -#ifdef STBDS_TEST_SIPHASH_2_4 - // hardcoded with key material in the siphash test vectors - v0 ^= 0x0706050403020100ull ^ seed; - v1 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; - v2 ^= 0x0706050403020100ull ^ seed; - v3 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; -#endif + #ifdef STBDS_TEST_SIPHASH_2_4 + // hardcoded with key material in the siphash test vectors + v0 ^= 0x0706050403020100ull ^ seed; + v1 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; + v2 ^= 0x0706050403020100ull ^ seed; + v3 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; + #endif -#define STBDS_SIPROUND() \ - do { \ - v0 += v1; \ - v1 = STBDS_ROTATE_LEFT(v1, 13); \ - v1 ^= v0; \ - v0 = STBDS_ROTATE_LEFT(v0, STBDS_SIZE_T_BITS / 2); \ - v2 += v3; \ - v3 = STBDS_ROTATE_LEFT(v3, 16); \ - v3 ^= v2; \ - v2 += v1; \ - v1 = STBDS_ROTATE_LEFT(v1, 17); \ - v1 ^= v2; \ - v2 = STBDS_ROTATE_LEFT(v2, STBDS_SIZE_T_BITS / 2); \ - v0 += v3; \ - v3 = STBDS_ROTATE_LEFT(v3, 21); \ - v3 ^= v0; \ - } while(0) + #define STBDS_SIPROUND() \ + do { \ + v0 += v1; v1 = STBDS_ROTATE_LEFT(v1, 13); v1 ^= v0; v0 = STBDS_ROTATE_LEFT(v0,STBDS_SIZE_T_BITS/2); \ + v2 += v3; v3 = STBDS_ROTATE_LEFT(v3, 16); v3 ^= v2; \ + v2 += v1; v1 = STBDS_ROTATE_LEFT(v1, 17); v1 ^= v2; v2 = STBDS_ROTATE_LEFT(v2,STBDS_SIZE_T_BITS/2); \ + v0 += v3; v3 = STBDS_ROTATE_LEFT(v3, 21); v3 ^= v0; \ + } while (0) - for(i = 0; i + sizeof(size_t) <= len; i += sizeof(size_t), d += sizeof(size_t)) { - data = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); - data |= (size_t)(d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // discarded if size_t == 4 + for (i=0; i+sizeof(size_t) <= len; i += sizeof(size_t), d += sizeof(size_t)) { + data = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + data |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // discarded if size_t == 4 - v3 ^= data; - for(j = 0; j < STBDS_SIPHASH_C_ROUNDS; ++j) - STBDS_SIPROUND(); - v0 ^= data; - } - data = len << (STBDS_SIZE_T_BITS - 8); - switch(len - i) { - case 7: - data |= ((size_t)d[6] << 24) << 24; // fall through - case 6: - data |= ((size_t)d[5] << 20) << 20; // fall through - case 5: - data |= ((size_t)d[4] << 16) << 16; // fall through - case 4: - data |= (d[3] << 24); // fall through - case 3: - data |= (d[2] << 16); // fall through - case 2: - data |= (d[1] << 8); // fall through - case 1: - data |= d[0]; // fall through - case 0: - break; - } - v3 ^= data; - for(j = 0; j < STBDS_SIPHASH_C_ROUNDS; ++j) - STBDS_SIPROUND(); - v0 ^= data; - v2 ^= 0xff; - for(j = 0; j < STBDS_SIPHASH_D_ROUNDS; ++j) - STBDS_SIPROUND(); + v3 ^= data; + for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j) + STBDS_SIPROUND(); + v0 ^= data; + } + data = len << (STBDS_SIZE_T_BITS-8); + switch (len - i) { + case 7: data |= ((size_t) d[6] << 24) << 24; // fall through + case 6: data |= ((size_t) d[5] << 20) << 20; // fall through + case 5: data |= ((size_t) d[4] << 16) << 16; // fall through + case 4: data |= (d[3] << 24); // fall through + case 3: data |= (d[2] << 16); // fall through + case 2: data |= (d[1] << 8); // fall through + case 1: data |= d[0]; // fall through + case 0: break; + } + v3 ^= data; + for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j) + STBDS_SIPROUND(); + v0 ^= data; + v2 ^= 0xff; + for (j=0; j < STBDS_SIPHASH_D_ROUNDS; ++j) + STBDS_SIPROUND(); #ifdef STBDS_SIPHASH_2_4 - return v0 ^ v1 ^ v2 ^ v3; + return v0^v1^v2^v3; #else - return v1 ^ v2 ^ v3; // slightly stronger since v0^v3 in above cancels out final round operation? I tweeted at the authors of SipHash about this but they didn't reply + return v1^v2^v3; // slightly stronger since v0^v3 in above cancels out final round operation? I tweeted at the authors of SipHash about this but they didn't reply #endif } -size_t stbds_hash_bytes(void* p, size_t len, size_t seed) { +size_t stbds_hash_bytes(void *p, size_t len, size_t seed) +{ #ifdef STBDS_SIPHASH_2_4 - return stbds_siphash_bytes(p, len, seed); + return stbds_siphash_bytes(p,len,seed); #else - unsigned char* d = (unsigned char*)p; + unsigned char *d = (unsigned char *) p; - if(len == 4) { - unsigned int hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); -#if 0 + if (len == 4) { + unsigned int hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + #if 0 // HASH32-A Bob Jenkin's hash function w/o large constants hash ^= seed; hash -= (hash<<6); @@ -1145,480 +1133,485 @@ size_t stbds_hash_bytes(void* p, size_t len, size_t seed) { hash -= (hash<<3); hash ^= (hash<<10); hash ^= (hash>>15); -#elif 1 - // HASH32-BB Bob Jenkin's presumably-accidental version of Thomas Wang hash with rotates turned into shifts. - // Note that converting these back to rotates makes it run a lot slower, presumably due to collisions, so I'm - // not really sure what's going on. - hash ^= seed; - hash = (hash ^ 61) ^ (hash >> 16); - hash = hash + (hash << 3); - hash = hash ^ (hash >> 4); - hash = hash * 0x27d4eb2d; - hash ^= seed; - hash = hash ^ (hash >> 15); -#else // HASH32-C - Murmur3 - hash ^= seed; - hash *= 0xcc9e2d51; - hash = (hash << 17) | (hash >> 15); - hash *= 0x1b873593; - hash ^= seed; - hash = (hash << 19) | (hash >> 13); - hash = hash * 5 + 0xe6546b64; - hash ^= hash >> 16; - hash *= 0x85ebca6b; - hash ^= seed; - hash ^= hash >> 13; - hash *= 0xc2b2ae35; - hash ^= hash >> 16; -#endif - // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 - // Note that the larger tables have high variance as they were run fewer times - // HASH32-A // HASH32-BB // HASH32-C - // 0.10ms // 0.10ms // 0.10ms : 2,000 inserts creating 2K table - // 0.96ms // 0.95ms // 0.99ms : 20,000 inserts creating 20K table - // 14.69ms // 14.43ms // 14.97ms : 200,000 inserts creating 200K table - // 199.99ms // 195.36ms // 202.05ms : 2,000,000 inserts creating 2M table - // 2234.84ms // 2187.74ms // 2240.38ms : 20,000,000 inserts creating 20M table - // 55.68ms // 53.72ms // 57.31ms : 500,000 inserts & deletes in 2K table - // 63.43ms // 61.99ms // 65.73ms : 500,000 inserts & deletes in 20K table - // 80.04ms // 77.96ms // 81.83ms : 500,000 inserts & deletes in 200K table - // 100.42ms // 97.40ms // 102.39ms : 500,000 inserts & deletes in 2M table - // 119.71ms // 120.59ms // 121.63ms : 500,000 inserts & deletes in 20M table - // 185.28ms // 195.15ms // 187.74ms : 500,000 inserts & deletes in 200M table - // 15.58ms // 14.79ms // 15.52ms : 200,000 inserts creating 200K table with varying key spacing + #elif 1 + // HASH32-BB Bob Jenkin's presumably-accidental version of Thomas Wang hash with rotates turned into shifts. + // Note that converting these back to rotates makes it run a lot slower, presumably due to collisions, so I'm + // not really sure what's going on. + hash ^= seed; + hash = (hash ^ 61) ^ (hash >> 16); + hash = hash + (hash << 3); + hash = hash ^ (hash >> 4); + hash = hash * 0x27d4eb2d; + hash ^= seed; + hash = hash ^ (hash >> 15); + #else // HASH32-C - Murmur3 + hash ^= seed; + hash *= 0xcc9e2d51; + hash = (hash << 17) | (hash >> 15); + hash *= 0x1b873593; + hash ^= seed; + hash = (hash << 19) | (hash >> 13); + hash = hash*5 + 0xe6546b64; + hash ^= hash >> 16; + hash *= 0x85ebca6b; + hash ^= seed; + hash ^= hash >> 13; + hash *= 0xc2b2ae35; + hash ^= hash >> 16; + #endif + // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 + // Note that the larger tables have high variance as they were run fewer times + // HASH32-A // HASH32-BB // HASH32-C + // 0.10ms // 0.10ms // 0.10ms : 2,000 inserts creating 2K table + // 0.96ms // 0.95ms // 0.99ms : 20,000 inserts creating 20K table + // 14.69ms // 14.43ms // 14.97ms : 200,000 inserts creating 200K table + // 199.99ms // 195.36ms // 202.05ms : 2,000,000 inserts creating 2M table + // 2234.84ms // 2187.74ms // 2240.38ms : 20,000,000 inserts creating 20M table + // 55.68ms // 53.72ms // 57.31ms : 500,000 inserts & deletes in 2K table + // 63.43ms // 61.99ms // 65.73ms : 500,000 inserts & deletes in 20K table + // 80.04ms // 77.96ms // 81.83ms : 500,000 inserts & deletes in 200K table + // 100.42ms // 97.40ms // 102.39ms : 500,000 inserts & deletes in 2M table + // 119.71ms // 120.59ms // 121.63ms : 500,000 inserts & deletes in 20M table + // 185.28ms // 195.15ms // 187.74ms : 500,000 inserts & deletes in 200M table + // 15.58ms // 14.79ms // 15.52ms : 200,000 inserts creating 200K table with varying key spacing - return (((size_t)hash << 16 << 16) | hash) ^ seed; - } else if(len == 8 && sizeof(size_t) == 8) { - size_t hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); - hash |= (size_t)(d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // avoid warning if size_t == 4 - hash ^= seed; - hash = (~hash) + (hash << 21); - hash ^= STBDS_ROTATE_RIGHT(hash, 24); - hash *= 265; - hash ^= STBDS_ROTATE_RIGHT(hash, 14); - hash ^= seed; - hash *= 21; - hash ^= STBDS_ROTATE_RIGHT(hash, 28); - hash += (hash << 31); - hash = (~hash) + (hash << 18); - return hash; - } else { - return stbds_siphash_bytes(p, len, seed); - } + return (((size_t) hash << 16 << 16) | hash) ^ seed; + } else if (len == 8 && sizeof(size_t) == 8) { + size_t hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + hash |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // avoid warning if size_t == 4 + hash ^= seed; + hash = (~hash) + (hash << 21); + hash ^= STBDS_ROTATE_RIGHT(hash,24); + hash *= 265; + hash ^= STBDS_ROTATE_RIGHT(hash,14); + hash ^= seed; + hash *= 21; + hash ^= STBDS_ROTATE_RIGHT(hash,28); + hash += (hash << 31); + hash = (~hash) + (hash << 18); + return hash; + } else { + return stbds_siphash_bytes(p,len,seed); + } #endif } #ifdef _MSC_VER #pragma warning(pop) #endif -static int stbds_is_key_equal(void* a, size_t elemsize, void* key, size_t keysize, size_t keyoffset, int mode, size_t i) { - if(mode >= STBDS_HM_STRING) - return 0 == strcmp((char*)key, *(char**)((char*)a + elemsize * i + keyoffset)); - else - return 0 == memcmp(key, (char*)a + elemsize * i + keyoffset, keysize); + +static int stbds_is_key_equal(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode, size_t i) +{ + if (mode >= STBDS_HM_STRING) + return 0==strcmp((char *) key, * (char **) ((char *) a + elemsize*i + keyoffset)); + else + return 0==memcmp(key, (char *) a + elemsize*i + keyoffset, keysize); } -#define STBDS_HASH_TO_ARR(x, elemsize) ((char*)(x) - (elemsize)) -#define STBDS_ARR_TO_HASH(x, elemsize) ((char*)(x) + (elemsize)) +#define STBDS_HASH_TO_ARR(x,elemsize) ((char*) (x) - (elemsize)) +#define STBDS_ARR_TO_HASH(x,elemsize) ((char*) (x) + (elemsize)) -#define stbds_hash_table(a) ((stbds_hash_index*)stbds_header(a)->hash_table) +#define stbds_hash_table(a) ((stbds_hash_index *) stbds_header(a)->hash_table) -void stbds_hmfree_func(void* a, size_t elemsize) { - if(a == NULL) return; - if(stbds_hash_table(a) != NULL) { - if(stbds_hash_table(a)->string.mode == STBDS_SH_STRDUP) { - size_t i; - // skip 0th element, which is default - for(i = 1; i < stbds_header(a)->length; ++i) - STBDS_FREE(NULL, *(char**)((char*)a + elemsize * i)); - } - stbds_strreset(&stbds_hash_table(a)->string); - } - STBDS_FREE(NULL, stbds_header(a)->hash_table); - STBDS_FREE(NULL, stbds_header(a)); +void stbds_hmfree_func(void *a, size_t elemsize) +{ + if (a == NULL) return; + if (stbds_hash_table(a) != NULL) { + if (stbds_hash_table(a)->string.mode == STBDS_SH_STRDUP) { + size_t i; + // skip 0th element, which is default + for (i=1; i < stbds_header(a)->length; ++i) + STBDS_FREE(NULL, *(char**) ((char *) a + elemsize*i)); + } + stbds_strreset(&stbds_hash_table(a)->string); + } + STBDS_FREE(NULL, stbds_header(a)->hash_table); + STBDS_FREE(NULL, stbds_header(a)); } -static ptrdiff_t stbds_hm_find_slot(void* a, size_t elemsize, void* key, size_t keysize, size_t keyoffset, int mode) { - void* raw_a = STBDS_HASH_TO_ARR(a, elemsize); - stbds_hash_index* table = stbds_hash_table(raw_a); - size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key, table->seed) : stbds_hash_bytes(key, keysize, table->seed); - size_t step = STBDS_BUCKET_LENGTH; - size_t limit, i; - size_t pos; - stbds_hash_bucket* bucket; +static ptrdiff_t stbds_hm_find_slot(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode) +{ + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + stbds_hash_index *table = stbds_hash_table(raw_a); + size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed); + size_t step = STBDS_BUCKET_LENGTH; + size_t limit,i; + size_t pos; + stbds_hash_bucket *bucket; - if(hash < 2) hash += 2; // stored hash values are forbidden from being 0, so we can detect empty slots + if (hash < 2) hash += 2; // stored hash values are forbidden from being 0, so we can detect empty slots - pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); + pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); - for(;;) { - STBDS_STATS(++stbds_hash_probes); - bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + for (;;) { + STBDS_STATS(++stbds_hash_probes); + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; - // start searching from pos to end of bucket, this should help performance on small hash tables that fit in cache - for(i = pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { - if(bucket->hash[i] == hash) { - if(stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { - return (pos & ~STBDS_BUCKET_MASK) + i; - } - } else if(bucket->hash[i] == STBDS_HASH_EMPTY) { - return -1; - } - } + // start searching from pos to end of bucket, this should help performance on small hash tables that fit in cache + for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + return (pos & ~STBDS_BUCKET_MASK)+i; + } + } else if (bucket->hash[i] == STBDS_HASH_EMPTY) { + return -1; + } + } - // search from beginning of bucket to pos - limit = pos & STBDS_BUCKET_MASK; - for(i = 0; i < limit; ++i) { - if(bucket->hash[i] == hash) { - if(stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { - return (pos & ~STBDS_BUCKET_MASK) + i; - } - } else if(bucket->hash[i] == STBDS_HASH_EMPTY) { - return -1; - } - } + // search from beginning of bucket to pos + limit = pos & STBDS_BUCKET_MASK; + for (i = 0; i < limit; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + return (pos & ~STBDS_BUCKET_MASK)+i; + } + } else if (bucket->hash[i] == STBDS_HASH_EMPTY) { + return -1; + } + } - // quadratic probing - pos += step; - step += STBDS_BUCKET_LENGTH; - pos &= (table->slot_count - 1); - } - /* NOTREACHED */ + // quadratic probing + pos += step; + step += STBDS_BUCKET_LENGTH; + pos &= (table->slot_count-1); + } + /* NOTREACHED */ } -void* stbds_hmget_key_ts(void* a, size_t elemsize, void* key, size_t keysize, ptrdiff_t* temp, int mode) { - size_t keyoffset = 0; - if(a == NULL) { - // make it non-empty so we can return a temp - a = stbds_arrgrowf(0, elemsize, 0, 1); - stbds_header(a)->length += 1; - memset(a, 0, elemsize); - *temp = STBDS_INDEX_EMPTY; - // adjust a to point after the default element - return STBDS_ARR_TO_HASH(a, elemsize); - } else { - stbds_hash_index* table; - void* raw_a = STBDS_HASH_TO_ARR(a, elemsize); - // adjust a to point to the default element - table = (stbds_hash_index*)stbds_header(raw_a)->hash_table; - if(table == 0) { - *temp = -1; - } else { - ptrdiff_t slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); - if(slot < 0) { - *temp = STBDS_INDEX_EMPTY; - } else { - stbds_hash_bucket* b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; - *temp = b->index[slot & STBDS_BUCKET_MASK]; - } - } - return a; - } +void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode) +{ + size_t keyoffset = 0; + if (a == NULL) { + // make it non-empty so we can return a temp + a = stbds_arrgrowf(0, elemsize, 0, 1); + stbds_header(a)->length += 1; + memset(a, 0, elemsize); + *temp = STBDS_INDEX_EMPTY; + // adjust a to point after the default element + return STBDS_ARR_TO_HASH(a,elemsize); + } else { + stbds_hash_index *table; + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + // adjust a to point to the default element + table = (stbds_hash_index *) stbds_header(raw_a)->hash_table; + if (table == 0) { + *temp = -1; + } else { + ptrdiff_t slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); + if (slot < 0) { + *temp = STBDS_INDEX_EMPTY; + } else { + stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + *temp = b->index[slot & STBDS_BUCKET_MASK]; + } + } + return a; + } } -void* stbds_hmget_key(void* a, size_t elemsize, void* key, size_t keysize, int mode) { - ptrdiff_t temp; - void* p = stbds_hmget_key_ts(a, elemsize, key, keysize, &temp, mode); - stbds_temp(STBDS_HASH_TO_ARR(p, elemsize)) = temp; - return p; +void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode) +{ + ptrdiff_t temp; + void *p = stbds_hmget_key_ts(a, elemsize, key, keysize, &temp, mode); + stbds_temp(STBDS_HASH_TO_ARR(p,elemsize)) = temp; + return p; } -void* stbds_hmput_default(void* a, size_t elemsize) { - // three cases: - // a is NULL <- allocate - // a has a hash table but no entries, because of shmode <- grow - // a has entries <- do nothing - if(a == NULL || stbds_header(STBDS_HASH_TO_ARR(a, elemsize))->length == 0) { - a = stbds_arrgrowf(a ? STBDS_HASH_TO_ARR(a, elemsize) : NULL, elemsize, 0, 1); - stbds_header(a)->length += 1; - memset(a, 0, elemsize); - a = STBDS_ARR_TO_HASH(a, elemsize); - } - return a; +void * stbds_hmput_default(void *a, size_t elemsize) +{ + // three cases: + // a is NULL <- allocate + // a has a hash table but no entries, because of shmode <- grow + // a has entries <- do nothing + if (a == NULL || stbds_header(STBDS_HASH_TO_ARR(a,elemsize))->length == 0) { + a = stbds_arrgrowf(a ? STBDS_HASH_TO_ARR(a,elemsize) : NULL, elemsize, 0, 1); + stbds_header(a)->length += 1; + memset(a, 0, elemsize); + a=STBDS_ARR_TO_HASH(a,elemsize); + } + return a; } -static char* stbds_strdup(char* str); +static char *stbds_strdup(char *str); -void* stbds_hmput_key(void* a, size_t elemsize, void* key, size_t keysize, int mode) { - size_t keyoffset = 0; - void* raw_a; - stbds_hash_index* table; +void *stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode) +{ + size_t keyoffset=0; + void *raw_a; + stbds_hash_index *table; - if(a == NULL) { - a = stbds_arrgrowf(0, elemsize, 0, 1); - memset(a, 0, elemsize); - stbds_header(a)->length += 1; - // adjust a to point AFTER the default element - a = STBDS_ARR_TO_HASH(a, elemsize); - } + if (a == NULL) { + a = stbds_arrgrowf(0, elemsize, 0, 1); + memset(a, 0, elemsize); + stbds_header(a)->length += 1; + // adjust a to point AFTER the default element + a = STBDS_ARR_TO_HASH(a,elemsize); + } - // adjust a to point to the default element - raw_a = a; - a = STBDS_HASH_TO_ARR(a, elemsize); + // adjust a to point to the default element + raw_a = a; + a = STBDS_HASH_TO_ARR(a,elemsize); - table = (stbds_hash_index*)stbds_header(a)->hash_table; + table = (stbds_hash_index *) stbds_header(a)->hash_table; - if(table == NULL || table->used_count >= table->used_count_threshold) { - stbds_hash_index* nt; - size_t slot_count; + if (table == NULL || table->used_count >= table->used_count_threshold) { + stbds_hash_index *nt; + size_t slot_count; - slot_count = (table == NULL) ? STBDS_BUCKET_LENGTH : table->slot_count * 2; - nt = stbds_make_hash_index(slot_count, table); - if(table) - STBDS_FREE(NULL, table); - else - nt->string.mode = mode >= STBDS_HM_STRING ? STBDS_SH_DEFAULT : 0; - stbds_header(a)->hash_table = table = nt; - STBDS_STATS(++stbds_hash_grow); - } + slot_count = (table == NULL) ? STBDS_BUCKET_LENGTH : table->slot_count*2; + nt = stbds_make_hash_index(slot_count, table); + if (table) + STBDS_FREE(NULL, table); + else + nt->string.mode = mode >= STBDS_HM_STRING ? STBDS_SH_DEFAULT : 0; + stbds_header(a)->hash_table = table = nt; + STBDS_STATS(++stbds_hash_grow); + } - // we iterate hash table explicitly because we want to track if we saw a tombstone - { - size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key, table->seed) : stbds_hash_bytes(key, keysize, table->seed); - size_t step = STBDS_BUCKET_LENGTH; - size_t pos; - ptrdiff_t tombstone = -1; - stbds_hash_bucket* bucket; + // we iterate hash table explicitly because we want to track if we saw a tombstone + { + size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed); + size_t step = STBDS_BUCKET_LENGTH; + size_t pos; + ptrdiff_t tombstone = -1; + stbds_hash_bucket *bucket; - // stored hash values are forbidden from being 0, so we can detect empty slots to early out quickly - if(hash < 2) hash += 2; + // stored hash values are forbidden from being 0, so we can detect empty slots to early out quickly + if (hash < 2) hash += 2; - pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); + pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); - for(;;) { - size_t limit, i; - STBDS_STATS(++stbds_hash_probes); - bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + for (;;) { + size_t limit, i; + STBDS_STATS(++stbds_hash_probes); + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; - // start searching from pos to end of bucket - for(i = pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { - if(bucket->hash[i] == hash) { - if(stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { - stbds_temp(a) = bucket->index[i]; - if(mode >= STBDS_HM_STRING) - stbds_temp_key(a) = *(char**)((char*)raw_a + elemsize * bucket->index[i] + keyoffset); - return STBDS_ARR_TO_HASH(a, elemsize); - } - } else if(bucket->hash[i] == 0) { - pos = (pos & ~STBDS_BUCKET_MASK) + i; - goto found_empty_slot; - } else if(tombstone < 0) { - if(bucket->index[i] == STBDS_INDEX_DELETED) - tombstone = (ptrdiff_t)((pos & ~STBDS_BUCKET_MASK) + i); - } - } + // start searching from pos to end of bucket + for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + stbds_temp(a) = bucket->index[i]; + if (mode >= STBDS_HM_STRING) + stbds_temp_key(a) = * (char **) ((char *) raw_a + elemsize*bucket->index[i] + keyoffset); + return STBDS_ARR_TO_HASH(a,elemsize); + } + } else if (bucket->hash[i] == 0) { + pos = (pos & ~STBDS_BUCKET_MASK) + i; + goto found_empty_slot; + } else if (tombstone < 0) { + if (bucket->index[i] == STBDS_INDEX_DELETED) + tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i); + } + } - // search from beginning of bucket to pos - limit = pos & STBDS_BUCKET_MASK; - for(i = 0; i < limit; ++i) { - if(bucket->hash[i] == hash) { - if(stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { - stbds_temp(a) = bucket->index[i]; - return STBDS_ARR_TO_HASH(a, elemsize); - } - } else if(bucket->hash[i] == 0) { - pos = (pos & ~STBDS_BUCKET_MASK) + i; - goto found_empty_slot; - } else if(tombstone < 0) { - if(bucket->index[i] == STBDS_INDEX_DELETED) - tombstone = (ptrdiff_t)((pos & ~STBDS_BUCKET_MASK) + i); - } - } + // search from beginning of bucket to pos + limit = pos & STBDS_BUCKET_MASK; + for (i = 0; i < limit; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + stbds_temp(a) = bucket->index[i]; + return STBDS_ARR_TO_HASH(a,elemsize); + } + } else if (bucket->hash[i] == 0) { + pos = (pos & ~STBDS_BUCKET_MASK) + i; + goto found_empty_slot; + } else if (tombstone < 0) { + if (bucket->index[i] == STBDS_INDEX_DELETED) + tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i); + } + } - // quadratic probing - pos += step; - step += STBDS_BUCKET_LENGTH; - pos &= (table->slot_count - 1); - } - found_empty_slot: - if(tombstone >= 0) { - pos = tombstone; - --table->tombstone_count; - } - ++table->used_count; + // quadratic probing + pos += step; + step += STBDS_BUCKET_LENGTH; + pos &= (table->slot_count-1); + } + found_empty_slot: + if (tombstone >= 0) { + pos = tombstone; + --table->tombstone_count; + } + ++table->used_count; - { - ptrdiff_t i = (ptrdiff_t)stbds_arrlen(a); - // we want to do stbds_arraddn(1), but we can't use the macros since we don't have something of the right type - if((size_t)i + 1 > stbds_arrcap(a)) - *(void**)&a = stbds_arrgrowf(a, elemsize, 1, 0); - raw_a = STBDS_ARR_TO_HASH(a, elemsize); + { + ptrdiff_t i = (ptrdiff_t) stbds_arrlen(a); + // we want to do stbds_arraddn(1), but we can't use the macros since we don't have something of the right type + if ((size_t) i+1 > stbds_arrcap(a)) + *(void **) &a = stbds_arrgrowf(a, elemsize, 1, 0); + raw_a = STBDS_ARR_TO_HASH(a,elemsize); - STBDS_ASSERT((size_t)i + 1 <= stbds_arrcap(a)); - stbds_header(a)->length = i + 1; - bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; - bucket->hash[pos & STBDS_BUCKET_MASK] = hash; - bucket->index[pos & STBDS_BUCKET_MASK] = i - 1; - stbds_temp(a) = i - 1; + STBDS_ASSERT((size_t) i+1 <= stbds_arrcap(a)); + stbds_header(a)->length = i+1; + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + bucket->hash[pos & STBDS_BUCKET_MASK] = hash; + bucket->index[pos & STBDS_BUCKET_MASK] = i-1; + stbds_temp(a) = i-1; - switch(table->string.mode) { - case STBDS_SH_STRDUP: - stbds_temp_key(a) = *(char**)((char*)a + elemsize * i) = stbds_strdup((char*)key); - break; - case STBDS_SH_ARENA: - stbds_temp_key(a) = *(char**)((char*)a + elemsize * i) = stbds_stralloc(&table->string, (char*)key); - break; - case STBDS_SH_DEFAULT: - stbds_temp_key(a) = *(char**)((char*)a + elemsize * i) = (char*)key; - break; - default: - memcpy((char*)a + elemsize * i, key, keysize); - break; - } - } - return STBDS_ARR_TO_HASH(a, elemsize); - } + switch (table->string.mode) { + case STBDS_SH_STRDUP: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_strdup((char*) key); break; + case STBDS_SH_ARENA: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_stralloc(&table->string, (char*)key); break; + case STBDS_SH_DEFAULT: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = (char *) key; break; + default: memcpy((char *) a + elemsize*i, key, keysize); break; + } + } + return STBDS_ARR_TO_HASH(a,elemsize); + } } -void* stbds_shmode_func(size_t elemsize, int mode) { - void* a = stbds_arrgrowf(0, elemsize, 0, 1); - stbds_hash_index* h; - memset(a, 0, elemsize); - stbds_header(a)->length = 1; - stbds_header(a)->hash_table = h = (stbds_hash_index*)stbds_make_hash_index(STBDS_BUCKET_LENGTH, NULL); - h->string.mode = (unsigned char)mode; - return STBDS_ARR_TO_HASH(a, elemsize); +void * stbds_shmode_func(size_t elemsize, int mode) +{ + void *a = stbds_arrgrowf(0, elemsize, 0, 1); + stbds_hash_index *h; + memset(a, 0, elemsize); + stbds_header(a)->length = 1; + stbds_header(a)->hash_table = h = (stbds_hash_index *) stbds_make_hash_index(STBDS_BUCKET_LENGTH, NULL); + h->string.mode = (unsigned char) mode; + return STBDS_ARR_TO_HASH(a,elemsize); } -void* stbds_hmdel_key(void* a, size_t elemsize, void* key, size_t keysize, size_t keyoffset, int mode) { - if(a == NULL) { - return 0; - } else { - stbds_hash_index* table; - void* raw_a = STBDS_HASH_TO_ARR(a, elemsize); - table = (stbds_hash_index*)stbds_header(raw_a)->hash_table; - stbds_temp(raw_a) = 0; - if(table == 0) { - return a; - } else { - ptrdiff_t slot; - slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); - if(slot < 0) - return a; - else { - stbds_hash_bucket* b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; - int i = slot & STBDS_BUCKET_MASK; - ptrdiff_t old_index = b->index[i]; - ptrdiff_t final_index = (ptrdiff_t)stbds_arrlen(raw_a) - 1 - 1; // minus one for the raw_a vs a, and minus one for 'last' - STBDS_ASSERT(slot < (ptrdiff_t)table->slot_count); - --table->used_count; - ++table->tombstone_count; - stbds_temp(raw_a) = 1; - STBDS_ASSERT(table->used_count >= 0); - // STBDS_ASSERT(table->tombstone_count < table->slot_count/4); - b->hash[i] = STBDS_HASH_DELETED; - b->index[i] = STBDS_INDEX_DELETED; +void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode) +{ + if (a == NULL) { + return 0; + } else { + stbds_hash_index *table; + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + table = (stbds_hash_index *) stbds_header(raw_a)->hash_table; + stbds_temp(raw_a) = 0; + if (table == 0) { + return a; + } else { + ptrdiff_t slot; + slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); + if (slot < 0) + return a; + else { + stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + int i = slot & STBDS_BUCKET_MASK; + ptrdiff_t old_index = b->index[i]; + ptrdiff_t final_index = (ptrdiff_t) stbds_arrlen(raw_a)-1-1; // minus one for the raw_a vs a, and minus one for 'last' + STBDS_ASSERT(slot < (ptrdiff_t) table->slot_count); + --table->used_count; + ++table->tombstone_count; + stbds_temp(raw_a) = 1; + STBDS_ASSERT(table->used_count >= 0); + //STBDS_ASSERT(table->tombstone_count < table->slot_count/4); + b->hash[i] = STBDS_HASH_DELETED; + b->index[i] = STBDS_INDEX_DELETED; - if(mode == STBDS_HM_STRING && table->string.mode == STBDS_SH_STRDUP) - STBDS_FREE(NULL, *(char**)((char*)a + elemsize * old_index)); + if (mode == STBDS_HM_STRING && table->string.mode == STBDS_SH_STRDUP) + STBDS_FREE(NULL, *(char**) ((char *) a+elemsize*old_index)); - // if indices are the same, memcpy is a no-op, but back-pointer-fixup will fail, so skip - if(old_index != final_index) { - // swap delete - memmove((char*)a + elemsize * old_index, (char*)a + elemsize * final_index, elemsize); + // if indices are the same, memcpy is a no-op, but back-pointer-fixup will fail, so skip + if (old_index != final_index) { + // swap delete + memmove((char*) a + elemsize*old_index, (char*) a + elemsize*final_index, elemsize); - // now find the slot for the last element - if(mode == STBDS_HM_STRING) - slot = stbds_hm_find_slot(a, elemsize, *(char**)((char*)a + elemsize * old_index + keyoffset), keysize, keyoffset, mode); - else - slot = stbds_hm_find_slot(a, elemsize, (char*)a + elemsize * old_index + keyoffset, keysize, keyoffset, mode); - STBDS_ASSERT(slot >= 0); - b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; - i = slot & STBDS_BUCKET_MASK; - STBDS_ASSERT(b->index[i] == final_index); - b->index[i] = old_index; - } - stbds_header(raw_a)->length -= 1; + // now find the slot for the last element + if (mode == STBDS_HM_STRING) + slot = stbds_hm_find_slot(a, elemsize, *(char**) ((char *) a+elemsize*old_index + keyoffset), keysize, keyoffset, mode); + else + slot = stbds_hm_find_slot(a, elemsize, (char* ) a+elemsize*old_index + keyoffset, keysize, keyoffset, mode); + STBDS_ASSERT(slot >= 0); + b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + i = slot & STBDS_BUCKET_MASK; + STBDS_ASSERT(b->index[i] == final_index); + b->index[i] = old_index; + } + stbds_header(raw_a)->length -= 1; - if(table->used_count < table->used_count_shrink_threshold && table->slot_count > STBDS_BUCKET_LENGTH) { - stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count >> 1, table); - STBDS_FREE(NULL, table); - STBDS_STATS(++stbds_hash_shrink); - } else if(table->tombstone_count > table->tombstone_count_threshold) { - stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count, table); - STBDS_FREE(NULL, table); - STBDS_STATS(++stbds_hash_rebuild); - } + if (table->used_count < table->used_count_shrink_threshold && table->slot_count > STBDS_BUCKET_LENGTH) { + stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count>>1, table); + STBDS_FREE(NULL, table); + STBDS_STATS(++stbds_hash_shrink); + } else if (table->tombstone_count > table->tombstone_count_threshold) { + stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count , table); + STBDS_FREE(NULL, table); + STBDS_STATS(++stbds_hash_rebuild); + } - return a; - } - } - } - /* NOTREACHED */ + return a; + } + } + } + /* NOTREACHED */ } -static char* stbds_strdup(char* str) { - // to keep replaceable allocator simple, we don't want to use strdup. - // rolling our own also avoids problem of strdup vs _strdup - size_t len = strlen(str) + 1; - char* p = (char*)STBDS_REALLOC(NULL, 0, len); - memmove(p, str, len); - return p; +static char *stbds_strdup(char *str) +{ + // to keep replaceable allocator simple, we don't want to use strdup. + // rolling our own also avoids problem of strdup vs _strdup + size_t len = strlen(str)+1; + char *p = (char*) STBDS_REALLOC(NULL, 0, len); + memmove(p, str, len); + return p; } #ifndef STBDS_STRING_ARENA_BLOCKSIZE_MIN -#define STBDS_STRING_ARENA_BLOCKSIZE_MIN 512u +#define STBDS_STRING_ARENA_BLOCKSIZE_MIN 512u #endif #ifndef STBDS_STRING_ARENA_BLOCKSIZE_MAX -#define STBDS_STRING_ARENA_BLOCKSIZE_MAX (1u << 20) +#define STBDS_STRING_ARENA_BLOCKSIZE_MAX (1u<<20) #endif -char* stbds_stralloc(stbds_string_arena* a, char* str) { - char* p; - size_t len = strlen(str) + 1; - if(len > a->remaining) { - // compute the next blocksize - size_t blocksize = a->block; +char *stbds_stralloc(stbds_string_arena *a, char *str) +{ + char *p; + size_t len = strlen(str)+1; + if (len > a->remaining) { + // compute the next blocksize + size_t blocksize = a->block; - // size is 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, etc., so that - // there are log(SIZE) allocations to free when we destroy the table - blocksize = (size_t)(STBDS_STRING_ARENA_BLOCKSIZE_MIN) << (blocksize >> 1); + // size is 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, etc., so that + // there are log(SIZE) allocations to free when we destroy the table + blocksize = (size_t) (STBDS_STRING_ARENA_BLOCKSIZE_MIN) << (blocksize>>1); - // if size is under 1M, advance to next blocktype - if(blocksize < (size_t)(STBDS_STRING_ARENA_BLOCKSIZE_MAX)) - ++a->block; + // if size is under 1M, advance to next blocktype + if (blocksize < (size_t)(STBDS_STRING_ARENA_BLOCKSIZE_MAX)) + ++a->block; - if(len > blocksize) { - // if string is larger than blocksize, then just allocate the full size. - // note that we still advance string_block so block size will continue - // increasing, so e.g. if somebody only calls this with 1000-long strings, - // eventually the arena will start doubling and handling those as well - stbds_string_block* sb = (stbds_string_block*)STBDS_REALLOC(NULL, 0, sizeof(*sb) - 8 + len); - memmove(sb->storage, str, len); - if(a->storage) { - // insert it after the first element, so that we don't waste the space there - sb->next = a->storage->next; - a->storage->next = sb; - } else { - sb->next = 0; - a->storage = sb; - a->remaining = 0; // this is redundant, but good for clarity - } - return sb->storage; - } else { - stbds_string_block* sb = (stbds_string_block*)STBDS_REALLOC(NULL, 0, sizeof(*sb) - 8 + blocksize); - sb->next = a->storage; - a->storage = sb; - a->remaining = blocksize; - } - } + if (len > blocksize) { + // if string is larger than blocksize, then just allocate the full size. + // note that we still advance string_block so block size will continue + // increasing, so e.g. if somebody only calls this with 1000-long strings, + // eventually the arena will start doubling and handling those as well + stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + len); + memmove(sb->storage, str, len); + if (a->storage) { + // insert it after the first element, so that we don't waste the space there + sb->next = a->storage->next; + a->storage->next = sb; + } else { + sb->next = 0; + a->storage = sb; + a->remaining = 0; // this is redundant, but good for clarity + } + return sb->storage; + } else { + stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + blocksize); + sb->next = a->storage; + a->storage = sb; + a->remaining = blocksize; + } + } - STBDS_ASSERT(len <= a->remaining); - p = a->storage->storage + a->remaining - len; - a->remaining -= len; - memmove(p, str, len); - return p; + STBDS_ASSERT(len <= a->remaining); + p = a->storage->storage + a->remaining - len; + a->remaining -= len; + memmove(p, str, len); + return p; } -void stbds_strreset(stbds_string_arena* a) { - stbds_string_block *x, *y; - x = a->storage; - while(x) { - y = x->next; - STBDS_FREE(NULL, x); - x = y; - } - memset(a, 0, sizeof(*a)); +void stbds_strreset(stbds_string_arena *a) +{ + stbds_string_block *x,*y; + x = a->storage; + while (x) { + y = x->next; + STBDS_FREE(NULL, x); + x = y; + } + memset(a, 0, sizeof(*a)); } #endif @@ -1638,259 +1631,227 @@ void stbds_strreset(stbds_string_arena* a) { #include #endif -typedef struct { - int key, b, c, d; -} stbds_struct; -typedef struct { - int key[2], b, c, d; -} stbds_struct2; +typedef struct { int key,b,c,d; } stbds_struct; +typedef struct { int key[2],b,c,d; } stbds_struct2; static char buffer[256]; -char* strkey(int n) { +char *strkey(int n) +{ #if defined(_WIN32) && defined(__STDC_WANT_SECURE_LIB__) - sprintf_s(buffer, sizeof(buffer), "test_%d", n); + sprintf_s(buffer, sizeof(buffer), "test_%d", n); #else - sprintf(buffer, "test_%d", n); + sprintf(buffer, "test_%d", n); #endif - return buffer; + return buffer; } -void stbds_unit_tests(void) { +void stbds_unit_tests(void) +{ #if defined(_MSC_VER) && _MSC_VER <= 1200 && defined(__cplusplus) - // VC6 C++ doesn't like the template<> trick on unnamed structures, so do nothing! - STBDS_ASSERT(0); + // VC6 C++ doesn't like the template<> trick on unnamed structures, so do nothing! + STBDS_ASSERT(0); #else - const int testsize = 100000; - const int testsize2 = testsize / 20; - int* arr = NULL; - struct { - int key; - int value; - }* intmap = NULL; - struct { - char* key; - int value; - } *strmap = NULL, s; - struct { - stbds_struct key; - int value; - }* map = NULL; - stbds_struct* map2 = NULL; - stbds_struct2* map3 = NULL; - stbds_string_arena sa = {0}; - int key3[2] = {1, 2}; - ptrdiff_t temp; + const int testsize = 100000; + const int testsize2 = testsize/20; + int *arr=NULL; + struct { int key; int value; } *intmap = NULL; + struct { char *key; int value; } *strmap = NULL, s; + struct { stbds_struct key; int value; } *map = NULL; + stbds_struct *map2 = NULL; + stbds_struct2 *map3 = NULL; + stbds_string_arena sa = { 0 }; + int key3[2] = { 1,2 }; + ptrdiff_t temp; - int i, j; + int i,j; - STBDS_ASSERT(arrlen(arr) == 0); - for(i = 0; i < 20000; i += 50) { - for(j = 0; j < i; ++j) - arrpush(arr, j); - arrfree(arr); - } + STBDS_ASSERT(arrlen(arr)==0); + for (i=0; i < 20000; i += 50) { + for (j=0; j < i; ++j) + arrpush(arr,j); + arrfree(arr); + } - for(i = 0; i < 4; ++i) { - arrpush(arr, 1); - arrpush(arr, 2); - arrpush(arr, 3); - arrpush(arr, 4); - arrdel(arr, i); - arrfree(arr); - arrpush(arr, 1); - arrpush(arr, 2); - arrpush(arr, 3); - arrpush(arr, 4); - arrdelswap(arr, i); - arrfree(arr); - } + for (i=0; i < 4; ++i) { + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + arrdel(arr,i); + arrfree(arr); + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + arrdelswap(arr,i); + arrfree(arr); + } - for(i = 0; i < 5; ++i) { - arrpush(arr, 1); - arrpush(arr, 2); - arrpush(arr, 3); - arrpush(arr, 4); - stbds_arrins(arr, i, 5); - STBDS_ASSERT(arr[i] == 5); - if(i < 4) - STBDS_ASSERT(arr[4] == 4); - arrfree(arr); - } + for (i=0; i < 5; ++i) { + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + stbds_arrins(arr,i,5); + STBDS_ASSERT(arr[i] == 5); + if (i < 4) + STBDS_ASSERT(arr[4] == 4); + arrfree(arr); + } - i = 1; - STBDS_ASSERT(hmgeti(intmap, i) == -1); - hmdefault(intmap, -2); - STBDS_ASSERT(hmgeti(intmap, i) == -1); - STBDS_ASSERT(hmget(intmap, i) == -2); - for(i = 0; i < testsize; i += 2) - hmput(intmap, i, i * 5); - for(i = 0; i < testsize; i += 1) { - if(i & 1) STBDS_ASSERT(hmget(intmap, i) == -2); - else - STBDS_ASSERT(hmget(intmap, i) == i * 5); - if(i & 1) STBDS_ASSERT(hmget_ts(intmap, i, temp) == -2); - else - STBDS_ASSERT(hmget_ts(intmap, i, temp) == i * 5); - } - for(i = 0; i < testsize; i += 2) - hmput(intmap, i, i * 3); - for(i = 0; i < testsize; i += 1) - if(i & 1) STBDS_ASSERT(hmget(intmap, i) == -2); - else - STBDS_ASSERT(hmget(intmap, i) == i * 3); - for(i = 2; i < testsize; i += 4) - hmdel(intmap, i); // delete half the entries - for(i = 0; i < testsize; i += 1) - if(i & 3) STBDS_ASSERT(hmget(intmap, i) == -2); - else - STBDS_ASSERT(hmget(intmap, i) == i * 3); - for(i = 0; i < testsize; i += 1) - hmdel(intmap, i); // delete the rest of the entries - for(i = 0; i < testsize; i += 1) - STBDS_ASSERT(hmget(intmap, i) == -2); - hmfree(intmap); - for(i = 0; i < testsize; i += 2) - hmput(intmap, i, i * 3); - hmfree(intmap); + i = 1; + STBDS_ASSERT(hmgeti(intmap,i) == -1); + hmdefault(intmap, -2); + STBDS_ASSERT(hmgeti(intmap, i) == -1); + STBDS_ASSERT(hmget (intmap, i) == -2); + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*5); + for (i=0; i < testsize; i+=1) { + if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*5); + if (i & 1) STBDS_ASSERT(hmget_ts(intmap, i, temp) == -2 ); + else STBDS_ASSERT(hmget_ts(intmap, i, temp) == i*5); + } + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*3); + for (i=0; i < testsize; i+=1) + if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*3); + for (i=2; i < testsize; i+=4) + hmdel(intmap, i); // delete half the entries + for (i=0; i < testsize; i+=1) + if (i & 3) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*3); + for (i=0; i < testsize; i+=1) + hmdel(intmap, i); // delete the rest of the entries + for (i=0; i < testsize; i+=1) + STBDS_ASSERT(hmget(intmap, i) == -2 ); + hmfree(intmap); + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*3); + hmfree(intmap); -#if defined(__clang__) || defined(__GNUC__) -#ifndef __cplusplus - intmap = NULL; - hmput(intmap, 15, 7); - hmput(intmap, 11, 3); - hmput(intmap, 9, 5); - STBDS_ASSERT(hmget(intmap, 9) == 5); - STBDS_ASSERT(hmget(intmap, 11) == 3); - STBDS_ASSERT(hmget(intmap, 15) == 7); -#endif -#endif + #if defined(__clang__) || defined(__GNUC__) + #ifndef __cplusplus + intmap = NULL; + hmput(intmap, 15, 7); + hmput(intmap, 11, 3); + hmput(intmap, 9, 5); + STBDS_ASSERT(hmget(intmap, 9) == 5); + STBDS_ASSERT(hmget(intmap, 11) == 3); + STBDS_ASSERT(hmget(intmap, 15) == 7); + #endif + #endif - for(i = 0; i < testsize; ++i) - stralloc(&sa, strkey(i)); - strreset(&sa); + for (i=0; i < testsize; ++i) + stralloc(&sa, strkey(i)); + strreset(&sa); - { - s.key = "a", s.value = 1; - shputs(strmap, s); - STBDS_ASSERT(*strmap[0].key == 'a'); - STBDS_ASSERT(strmap[0].key == s.key); - STBDS_ASSERT(strmap[0].value == s.value); - shfree(strmap); - } + { + s.key = "a", s.value = 1; + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key == s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } - { - s.key = "a", s.value = 1; - sh_new_strdup(strmap); - shputs(strmap, s); - STBDS_ASSERT(*strmap[0].key == 'a'); - STBDS_ASSERT(strmap[0].key != s.key); - STBDS_ASSERT(strmap[0].value == s.value); - shfree(strmap); - } + { + s.key = "a", s.value = 1; + sh_new_strdup(strmap); + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key != s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } - { - s.key = "a", s.value = 1; - sh_new_arena(strmap); - shputs(strmap, s); - STBDS_ASSERT(*strmap[0].key == 'a'); - STBDS_ASSERT(strmap[0].key != s.key); - STBDS_ASSERT(strmap[0].value == s.value); - shfree(strmap); - } + { + s.key = "a", s.value = 1; + sh_new_arena(strmap); + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key != s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } - for(j = 0; j < 2; ++j) { - STBDS_ASSERT(shgeti(strmap, "foo") == -1); - if(j == 0) - sh_new_strdup(strmap); - else - sh_new_arena(strmap); - STBDS_ASSERT(shgeti(strmap, "foo") == -1); - shdefault(strmap, -2); - STBDS_ASSERT(shgeti(strmap, "foo") == -1); - for(i = 0; i < testsize; i += 2) - shput(strmap, strkey(i), i * 3); - for(i = 0; i < testsize; i += 1) - if(i & 1) STBDS_ASSERT(shget(strmap, strkey(i)) == -2); - else - STBDS_ASSERT(shget(strmap, strkey(i)) == i * 3); - for(i = 2; i < testsize; i += 4) - shdel(strmap, strkey(i)); // delete half the entries - for(i = 0; i < testsize; i += 1) - if(i & 3) STBDS_ASSERT(shget(strmap, strkey(i)) == -2); - else - STBDS_ASSERT(shget(strmap, strkey(i)) == i * 3); - for(i = 0; i < testsize; i += 1) - shdel(strmap, strkey(i)); // delete the rest of the entries - for(i = 0; i < testsize; i += 1) - STBDS_ASSERT(shget(strmap, strkey(i)) == -2); - shfree(strmap); - } + for (j=0; j < 2; ++j) { + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + if (j == 0) + sh_new_strdup(strmap); + else + sh_new_arena(strmap); + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + shdefault(strmap, -2); + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + for (i=0; i < testsize; i+=2) + shput(strmap, strkey(i), i*3); + for (i=0; i < testsize; i+=1) + if (i & 1) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3); + for (i=2; i < testsize; i+=4) + shdel(strmap, strkey(i)); // delete half the entries + for (i=0; i < testsize; i+=1) + if (i & 3) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3); + for (i=0; i < testsize; i+=1) + shdel(strmap, strkey(i)); // delete the rest of the entries + for (i=0; i < testsize; i+=1) + STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + shfree(strmap); + } - { - struct { - char* key; - char value; - }* hash = NULL; - char name[4] = "jen"; - shput(hash, "bob", 'h'); - shput(hash, "sally", 'e'); - shput(hash, "fred", 'l'); - shput(hash, "jen", 'x'); - shput(hash, "doug", 'o'); + { + struct { char *key; char value; } *hash = NULL; + char name[4] = "jen"; + shput(hash, "bob" , 'h'); + shput(hash, "sally" , 'e'); + shput(hash, "fred" , 'l'); + shput(hash, "jen" , 'x'); + shput(hash, "doug" , 'o'); - shput(hash, name, 'l'); - shfree(hash); - } + shput(hash, name , 'l'); + shfree(hash); + } - for(i = 0; i < testsize; i += 2) { - stbds_struct s = {i, i * 2, i * 3, i * 4}; - hmput(map, s, i * 5); - } + for (i=0; i < testsize; i += 2) { + stbds_struct s = { i,i*2,i*3,i*4 }; + hmput(map, s, i*5); + } - for(i = 0; i < testsize; i += 1) { - stbds_struct s = {i, i * 2, i * 3, i * 4}; - stbds_struct t = {i, i * 2, i * 3 + 1, i * 4}; - if(i & 1) STBDS_ASSERT(hmget(map, s) == 0); - else - STBDS_ASSERT(hmget(map, s) == i * 5); - if(i & 1) STBDS_ASSERT(hmget_ts(map, s, temp) == 0); - else - STBDS_ASSERT(hmget_ts(map, s, temp) == i * 5); - // STBDS_ASSERT(hmget(map, t.key) == 0); - } + for (i=0; i < testsize; i += 1) { + stbds_struct s = { i,i*2,i*3 ,i*4 }; + stbds_struct t = { i,i*2,i*3+1,i*4 }; + if (i & 1) STBDS_ASSERT(hmget(map, s) == 0); + else STBDS_ASSERT(hmget(map, s) == i*5); + if (i & 1) STBDS_ASSERT(hmget_ts(map, s, temp) == 0); + else STBDS_ASSERT(hmget_ts(map, s, temp) == i*5); + //STBDS_ASSERT(hmget(map, t.key) == 0); + } - for(i = 0; i < testsize; i += 2) { - stbds_struct s = {i, i * 2, i * 3, i * 4}; - hmputs(map2, s); - } - hmfree(map); + for (i=0; i < testsize; i += 2) { + stbds_struct s = { i,i*2,i*3,i*4 }; + hmputs(map2, s); + } + hmfree(map); - for(i = 0; i < testsize; i += 1) { - stbds_struct s = {i, i * 2, i * 3, i * 4}; - stbds_struct t = {i, i * 2, i * 3 + 1, i * 4}; - if(i & 1) STBDS_ASSERT(hmgets(map2, s.key).d == 0); - else - STBDS_ASSERT(hmgets(map2, s.key).d == i * 4); - // STBDS_ASSERT(hmgetp(map2, t.key) == 0); - } - hmfree(map2); + for (i=0; i < testsize; i += 1) { + stbds_struct s = { i,i*2,i*3,i*4 }; + stbds_struct t = { i,i*2,i*3+1,i*4 }; + if (i & 1) STBDS_ASSERT(hmgets(map2, s.key).d == 0); + else STBDS_ASSERT(hmgets(map2, s.key).d == i*4); + //STBDS_ASSERT(hmgetp(map2, t.key) == 0); + } + hmfree(map2); - for(i = 0; i < testsize; i += 2) { - stbds_struct2 s = {{i, i * 2}, i * 3, i * 4, i * 5}; - hmputs(map3, s); - } - for(i = 0; i < testsize; i += 1) { - stbds_struct2 s = {{i, i * 2}, i * 3, i * 4, i * 5}; - stbds_struct2 t = {{i, i * 2}, i * 3 + 1, i * 4, i * 5}; - if(i & 1) STBDS_ASSERT(hmgets(map3, s.key).d == 0); - else - STBDS_ASSERT(hmgets(map3, s.key).d == i * 5); - // STBDS_ASSERT(hmgetp(map3, t.key) == 0); - } + for (i=0; i < testsize; i += 2) { + stbds_struct2 s = { { i,i*2 }, i*3,i*4, i*5 }; + hmputs(map3, s); + } + for (i=0; i < testsize; i += 1) { + stbds_struct2 s = { { i,i*2}, i*3, i*4, i*5 }; + stbds_struct2 t = { { i,i*2}, i*3+1, i*4, i*5 }; + if (i & 1) STBDS_ASSERT(hmgets(map3, s.key).d == 0); + else STBDS_ASSERT(hmgets(map3, s.key).d == i*5); + //STBDS_ASSERT(hmgetp(map3, t.key) == 0); + } #endif } #endif + /* ------------------------------------------------------------------------------ This software is available under 2 licenses -- choose whichever you prefer. diff --git a/external/stb_image.h b/external/stb_image.h index 4f2839c23..6eac58c8d 100644 --- a/external/stb_image.h +++ b/external/stb_image.h @@ -1,5 +1,5 @@ /* stb_image - v2.30 - public domain image loader - http://nothings.org/stb - no warranty implied; use at your own risk + no warranty implied; use at your own risk Do this: #define STB_IMAGE_IMPLEMENTATION @@ -18,7 +18,7 @@ QUICK NOTES: Primarily of interest to game developers and other people who can - avoid problematic images and only need the trivial interface + avoid problematic images and only need the trivial interface JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) PNG 1/2/4/8/16-bit-per-channel @@ -33,7 +33,7 @@ PNM (PPM and PGM binary only) Animated GIF still needs a proper API, but here's one way to do it: - http://gist.github.com/urraka/685d9a6340b26b830d49 + http://gist.github.com/urraka/685d9a6340b26b830d49 - decode from memory or through FILE (define STBI_NO_STDIO to remove code) - decode from arbitrary I/O callbacks @@ -68,9 +68,9 @@ RECENT REVISION HISTORY: 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 - RGB-format JPEG; remove white matting in PSD; - allocate large structures on the stack; - correct channel count for PNG & BMP + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP 2.10 (2016-01-22) avoid warning introduced in 2.09 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED @@ -89,8 +89,8 @@ RECENT REVISION HISTORY: Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) github:urraka (animated gif) Junggon Kim (PNM comments) Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) - socks-the-fox (16-bit PNG) - Jeremy Sawicki (handle all ImageNet JPGs) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) Optimizations & bugfixes Mikhail Morozov (1-bit BMP) Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) Arseny Kapoulkine Simon Breuss (16-bit PNM) @@ -114,12 +114,12 @@ RECENT REVISION HISTORY: Josh Tobin Neil Bickford Matthew Gregan github:poppolopoppo Julian Raschke Gregory Mullen Christian Floisand github:darealshinji Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 - Brad Weinberger Matvey Cherevko github:mosra + Brad Weinberger Matvey Cherevko github:mosra Luca Sas Alexander Veselov Zack Middleton [reserved] Ryan C. Gordon [reserved] [reserved] - DO NOT ADD YOUR NAME HERE + DO NOT ADD YOUR NAME HERE - Jacko Dirks + Jacko Dirks To add your name to the credits, pick a random blank space in the middle and fill it. 80% of merge conflicts on stb PRs are due to people adding their name at the end @@ -373,17 +373,18 @@ RECENT REVISION HISTORY: #define STBI_VERSION 1 -enum { - STBI_default = 0, // only used for desired_channels +enum +{ + STBI_default = 0, // only used for desired_channels - STBI_grey = 1, - STBI_grey_alpha = 2, - STBI_rgb = 3, - STBI_rgb_alpha = 4 + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 }; #include -typedef unsigned char stbi_uc; +typedef unsigned char stbi_uc; typedef unsigned short stbi_us; #ifdef __cplusplus @@ -409,9 +410,9 @@ extern "C" { typedef struct { - int (*read)(void* user, char* data, int size); // fill 'data' with 'size' bytes. return number of bytes actually read - void (*skip)(void* user, int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative - int (*eof)(void* user); // returns nonzero if we are at end of file/data + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data } stbi_io_callbacks; //////////////////////////////////// @@ -419,21 +420,21 @@ typedef struct // 8-bits-per-channel interface // -STBIDEF stbi_uc* stbi_load_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF stbi_uc* stbi_load_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); #ifndef STBI_NO_STDIO -STBIDEF stbi_uc* stbi_load(char const* filename, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF stbi_uc* stbi_load_from_file(FILE* f, int* x, int* y, int* channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); // for stbi_load_from_file, file pointer is left pointing immediately after image #endif #ifndef STBI_NO_GIF -STBIDEF stbi_uc* stbi_load_gif_from_memory(stbi_uc const* buffer, int len, int** delays, int* x, int* y, int* z, int* comp, int req_comp); +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); #endif #ifdef STBI_WINDOWS_UTF8 -STBIDEF int stbi_convert_wchar_to_utf8(char* buffer, size_t bufferlen, const wchar_t* input); +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); #endif //////////////////////////////////// @@ -441,12 +442,12 @@ STBIDEF int stbi_convert_wchar_to_utf8(char* buffer, size_t bufferlen, const wch // 16-bits-per-channel interface // -STBIDEF stbi_us* stbi_load_16_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF stbi_us* stbi_load_16_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); #ifndef STBI_NO_STDIO -STBIDEF stbi_us* stbi_load_16(char const* filename, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF stbi_us* stbi_load_from_file_16(FILE* f, int* x, int* y, int* channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); #endif //////////////////////////////////// @@ -454,53 +455,56 @@ STBIDEF stbi_us* stbi_load_from_file_16(FILE* f, int* x, int* y, int* channels_i // float-per-channel interface // #ifndef STBI_NO_LINEAR -STBIDEF float* stbi_loadf_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF float* stbi_loadf_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); -#ifndef STBI_NO_STDIO -STBIDEF float* stbi_loadf(char const* filename, int* x, int* y, int* channels_in_file, int desired_channels); -STBIDEF float* stbi_loadf_from_file(FILE* f, int* x, int* y, int* channels_in_file, int desired_channels); -#endif + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif #endif #ifndef STBI_NO_HDR -STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); -STBIDEF void stbi_hdr_to_ldr_scale(float scale); + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); #endif // STBI_NO_HDR #ifndef STBI_NO_LINEAR -STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); -STBIDEF void stbi_ldr_to_hdr_scale(float scale); + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); #endif // STBI_NO_LINEAR // stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const* clbk, void* user); -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const* buffer, int len); +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); #ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr(char const* filename); -STBIDEF int stbi_is_hdr_from_file(FILE* f); +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); #endif // STBI_NO_STDIO + // get a VERY brief reason for failure // on most compilers (and ALL modern mainstream compilers) this is threadsafe -STBIDEF const char* stbi_failure_reason(void); +STBIDEF const char *stbi_failure_reason (void); // free the loaded image -- this is just free() -STBIDEF void stbi_image_free(void* retval_from_stbi_load); +STBIDEF void stbi_image_free (void *retval_from_stbi_load); // get image dimensions & components without fully decoding -STBIDEF int stbi_info_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp); -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp); -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const* buffer, int len); -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const* clbk, void* user); +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); #ifndef STBI_NO_STDIO -STBIDEF int stbi_info(char const* filename, int* x, int* y, int* comp); -STBIDEF int stbi_info_from_file(FILE* f, int* x, int* y, int* comp); -STBIDEF int stbi_is_16_bit(char const* filename); -STBIDEF int stbi_is_16_bit_from_file(FILE* f); +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); #endif + + // for image formats that explicitly notate that they have premultiplied alpha, // we just return the colors as stored in the file. set this flag to force // unpremultiplication. results are undefined if the unpremultiply overflow. @@ -522,13 +526,14 @@ STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_fli // ZLIB client - used by PNG, available for other purposes -STBIDEF char* stbi_zlib_decode_malloc_guesssize(const char* buffer, int len, int initial_size, int* outlen); -STBIDEF char* stbi_zlib_decode_malloc_guesssize_headerflag(const char* buffer, int len, int initial_size, int* outlen, int parse_header); -STBIDEF char* stbi_zlib_decode_malloc(const char* buffer, int len, int* outlen); -STBIDEF int stbi_zlib_decode_buffer(char* obuffer, int olen, const char* ibuffer, int ilen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); -STBIDEF char* stbi_zlib_decode_noheader_malloc(const char* buffer, int len, int* outlen); -STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const char* ibuffer, int ilen); #ifdef __cplusplus } @@ -541,40 +546,44 @@ STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const ch #ifdef STB_IMAGE_IMPLEMENTATION -#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) || defined(STBI_ONLY_ZLIB) -#ifndef STBI_ONLY_JPEG -#define STBI_NO_JPEG -#endif -#ifndef STBI_ONLY_PNG -#define STBI_NO_PNG -#endif -#ifndef STBI_ONLY_BMP -#define STBI_NO_BMP -#endif -#ifndef STBI_ONLY_PSD -#define STBI_NO_PSD -#endif -#ifndef STBI_ONLY_TGA -#define STBI_NO_TGA -#endif -#ifndef STBI_ONLY_GIF -#define STBI_NO_GIF -#endif -#ifndef STBI_ONLY_HDR -#define STBI_NO_HDR -#endif -#ifndef STBI_ONLY_PIC -#define STBI_NO_PIC -#endif -#ifndef STBI_ONLY_PNM -#define STBI_NO_PNM -#endif +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif #endif #if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) #define STBI_NO_ZLIB #endif + #include #include // ptrdiff_t on osx #include @@ -582,7 +591,7 @@ STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const ch #include #if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) -#include // ldexp, pow +#include // ldexp, pow #endif #ifndef STBI_NO_STDIO @@ -600,54 +609,55 @@ STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const ch #define STBI_EXTERN extern #endif + #ifndef _MSC_VER -#ifdef __cplusplus -#define stbi_inline inline + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif #else -#define stbi_inline -#endif -#else -#define stbi_inline __forceinline + #define stbi_inline __forceinline #endif #ifndef STBI_NO_THREAD_LOCALS -#if defined(__cplusplus) && __cplusplus >= 201103L -#define STBI_THREAD_LOCAL thread_local -#elif defined(__GNUC__) && __GNUC__ < 5 -#define STBI_THREAD_LOCAL __thread -#elif defined(_MSC_VER) -#define STBI_THREAD_LOCAL __declspec(thread) -#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) -#define STBI_THREAD_LOCAL _Thread_local -#endif + #if defined(__cplusplus) && __cplusplus >= 201103L + #define STBI_THREAD_LOCAL thread_local + #elif defined(__GNUC__) && __GNUC__ < 5 + #define STBI_THREAD_LOCAL __thread + #elif defined(_MSC_VER) + #define STBI_THREAD_LOCAL __declspec(thread) + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) + #define STBI_THREAD_LOCAL _Thread_local + #endif -#ifndef STBI_THREAD_LOCAL -#if defined(__GNUC__) -#define STBI_THREAD_LOCAL __thread -#endif -#endif + #ifndef STBI_THREAD_LOCAL + #if defined(__GNUC__) + #define STBI_THREAD_LOCAL __thread + #endif + #endif #endif #if defined(_MSC_VER) || defined(__SYMBIAN32__) || defined(__BORLANDC__) typedef unsigned short stbi__uint16; -typedef signed short stbi__int16; +typedef signed short stbi__int16; typedef unsigned int stbi__uint32; -typedef signed int stbi__int32; +typedef signed int stbi__int32; #else #include typedef uint16_t stbi__uint16; -typedef int16_t stbi__int16; +typedef int16_t stbi__int16; typedef uint32_t stbi__uint32; -typedef int32_t stbi__int32; +typedef int32_t stbi__int32; #endif // should produce compiler error if size is wrong -typedef unsigned char validate_uint32[sizeof(stbi__uint32) == 4 ? 1 : -1]; +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; #ifdef _MSC_VER -#define STBI_NOTUSED(v) (void)(v) +#define STBI_NOTUSED(v) (void)(v) #else -#define STBI_NOTUSED(v) (void)sizeof(v) +#define STBI_NOTUSED(v) (void)sizeof(v) #endif #ifdef _MSC_VER @@ -655,9 +665,9 @@ typedef unsigned char validate_uint32[sizeof(stbi__uint32) == 4 ? 1 : -1]; #endif #ifdef STBI_HAS_LROTL -#define stbi_lrot(x, y) _lrotl(x, y) + #define stbi_lrot(x,y) _lrotl(x,y) #else -#define stbi_lrot(x, y) (((x) << (y)) | ((x) >> (-(y) & 31))) + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (-(y) & 31))) #endif #if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) @@ -669,13 +679,13 @@ typedef unsigned char validate_uint32[sizeof(stbi__uint32) == 4 ? 1 : -1]; #endif #ifndef STBI_MALLOC -#define STBI_MALLOC(sz) malloc(sz) -#define STBI_REALLOC(p, newsz) realloc(p, newsz) -#define STBI_FREE(p) free(p) +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) #endif #ifndef STBI_REALLOC_SIZED -#define STBI_REALLOC_SIZED(p, oldsz, newsz) STBI_REALLOC(p, newsz) +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) #endif // x86/x64 detection @@ -717,31 +727,34 @@ typedef unsigned char validate_uint32[sizeof(stbi__uint32) == 4 ? 1 : -1]; #ifdef _MSC_VER -#if _MSC_VER >= 1400 // not VC6 -#include // __cpuid -static int stbi__cpuid3(void) { - int info[4]; - __cpuid(info, 1); - return info[3]; +#if _MSC_VER >= 1400 // not VC6 +#include // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; } #else -static int stbi__cpuid3(void) { - int res; - __asm { +static int stbi__cpuid3(void) +{ + int res; + __asm { mov eax,1 cpuid mov res,edx - } - return res; + } + return res; } #endif #define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name #if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) { - int info3 = stbi__cpuid3(); - return ((info3 >> 26) & 1) != 0; +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; } #endif @@ -749,11 +762,12 @@ static int stbi__sse2_available(void) { #define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) #if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) { - // If we're even attempting to compile this on GCC/Clang, that means - // -msse2 is on, which means the compiler is allowed to use SSE2 - // instructions at will, and so are we. - return 1; +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; } #endif @@ -790,175 +804,187 @@ static int stbi__sse2_available(void) { // contains all the IO context, plus some basic image information typedef struct { - stbi__uint32 img_x, img_y; - int img_n, img_out_n; + stbi__uint32 img_x, img_y; + int img_n, img_out_n; - stbi_io_callbacks io; - void* io_user_data; + stbi_io_callbacks io; + void *io_user_data; - int read_from_callbacks; - int buflen; - stbi_uc buffer_start[128]; - int callback_already_read; + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + int callback_already_read; - stbi_uc *img_buffer, *img_buffer_end; - stbi_uc *img_buffer_original, *img_buffer_original_end; + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; } stbi__context; -static void stbi__refill_buffer(stbi__context* s); + +static void stbi__refill_buffer(stbi__context *s); // initialize a memory-decode context -static void stbi__start_mem(stbi__context* s, stbi_uc const* buffer, int len) { - s->io.read = NULL; - s->read_from_callbacks = 0; - s->callback_already_read = 0; - s->img_buffer = s->img_buffer_original = (stbi_uc*)buffer; - s->img_buffer_end = s->img_buffer_original_end = (stbi_uc*)buffer + len; +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; } // initialize a callback-based context -static void stbi__start_callbacks(stbi__context* s, stbi_io_callbacks* c, void* user) { - s->io = *c; - s->io_user_data = user; - s->buflen = sizeof(s->buffer_start); - s->read_from_callbacks = 1; - s->callback_already_read = 0; - s->img_buffer = s->img_buffer_original = s->buffer_start; - stbi__refill_buffer(s); - s->img_buffer_original_end = s->img_buffer_end; +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; } #ifndef STBI_NO_STDIO -static int stbi__stdio_read(void* user, char* data, int size) { - return (int)fread(data, 1, size, (FILE*)user); +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); } -static void stbi__stdio_skip(void* user, int n) { - int ch; - fseek((FILE*)user, n, SEEK_CUR); - ch = fgetc((FILE*)user); /* have to read a byte to reset feof()'s flag */ - if(ch != EOF) { - ungetc(ch, (FILE*)user); /* push byte back onto stream if valid. */ - } +static void stbi__stdio_skip(void *user, int n) +{ + int ch; + fseek((FILE*) user, n, SEEK_CUR); + ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ + if (ch != EOF) { + ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ + } } -static int stbi__stdio_eof(void* user) { - return feof((FILE*)user) || ferror((FILE*)user); +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user) || ferror((FILE *) user); } static stbi_io_callbacks stbi__stdio_callbacks = - { - stbi__stdio_read, - stbi__stdio_skip, - stbi__stdio_eof, +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, }; -static void stbi__start_file(stbi__context* s, FILE* f) { - stbi__start_callbacks(s, &stbi__stdio_callbacks, (void*)f); +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); } -// static void stop_file(stbi__context *s) { } +//static void stop_file(stbi__context *s) { } #endif // !STBI_NO_STDIO -static void stbi__rewind(stbi__context* s) { - // conceptually rewind SHOULD rewind to the beginning of the stream, - // but we just rewind to the beginning of the initial buffer, because - // we only use it after doing 'test', which only ever looks at at most 92 bytes - s->img_buffer = s->img_buffer_original; - s->img_buffer_end = s->img_buffer_original_end; +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; } -enum { - STBI_ORDER_RGB, - STBI_ORDER_BGR +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR }; typedef struct { - int bits_per_channel; - int num_channels; - int channel_order; + int bits_per_channel; + int num_channels; + int channel_order; } stbi__result_info; #ifndef STBI_NO_JPEG -static int stbi__jpeg_test(stbi__context* s); -static void* stbi__jpeg_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__jpeg_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_PNG -static int stbi__png_test(stbi__context* s); -static void* stbi__png_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__png_info(stbi__context* s, int* x, int* y, int* comp); -static int stbi__png_is16(stbi__context* s); +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); #endif #ifndef STBI_NO_BMP -static int stbi__bmp_test(stbi__context* s); -static void* stbi__bmp_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__bmp_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_TGA -static int stbi__tga_test(stbi__context* s); -static void* stbi__tga_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__tga_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context* s); -static void* stbi__psd_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri, int bpc); -static int stbi__psd_info(stbi__context* s, int* x, int* y, int* comp); -static int stbi__psd_is16(stbi__context* s); +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); #endif #ifndef STBI_NO_HDR -static int stbi__hdr_test(stbi__context* s); -static float* stbi__hdr_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__hdr_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_PIC -static int stbi__pic_test(stbi__context* s); -static void* stbi__pic_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__pic_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_GIF -static int stbi__gif_test(stbi__context* s); -static void* stbi__gif_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static void* stbi__load_gif_main(stbi__context* s, int** delays, int* x, int* y, int* z, int* comp, int req_comp); -static int stbi__gif_info(stbi__context* s, int* x, int* y, int* comp); +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); #endif #ifndef STBI_NO_PNM -static int stbi__pnm_test(stbi__context* s); -static void* stbi__pnm_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri); -static int stbi__pnm_info(stbi__context* s, int* x, int* y, int* comp); -static int stbi__pnm_is16(stbi__context* s); +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__pnm_is16(stbi__context *s); #endif static #ifdef STBI_THREAD_LOCAL - STBI_THREAD_LOCAL +STBI_THREAD_LOCAL #endif - const char* stbi__g_failure_reason; +const char *stbi__g_failure_reason; -STBIDEF const char* stbi_failure_reason(void) { - return stbi__g_failure_reason; +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; } #ifndef STBI_NO_FAILURE_STRINGS -static int stbi__err(const char* str) { - stbi__g_failure_reason = str; - return 0; +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; } #endif -static void* stbi__malloc(size_t size) { - return STBI_MALLOC(size); +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); } // stb_image uses ints pervasively, including for offset calculations. @@ -973,78 +999,88 @@ static void* stbi__malloc(size_t size) { // return 1 if the sum is valid, 0 on overflow. // negative terms are considered invalid. -static int stbi__addsizes_valid(int a, int b) { - if(b < 0) return 0; - // now 0 <= b <= INT_MAX, hence also - // 0 <= INT_MAX - b <= INTMAX. - // And "a + b <= INT_MAX" (which might overflow) is the - // same as a <= INT_MAX - b (no overflow) - return a <= INT_MAX - b; +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; } // returns 1 if the product is valid, 0 on overflow. // negative factors are considered invalid. -static int stbi__mul2sizes_valid(int a, int b) { - if(a < 0 || b < 0) return 0; - if(b == 0) return 1; // mul-by-0 is always safe - // portable way to check for no overflows in a*b - return a <= INT_MAX / b; +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; } #if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) // returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow -static int stbi__mad2sizes_valid(int a, int b, int add) { - return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a * b, add); +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); } #endif // returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow -static int stbi__mad3sizes_valid(int a, int b, int c, int add) { - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a * b, c) && - stbi__addsizes_valid(a * b * c, add); +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); } // returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow #if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) -static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) { - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a * b, c) && - stbi__mul2sizes_valid(a * b * c, d) && stbi__addsizes_valid(a * b * c * d, add); +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); } #endif #if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) // mallocs with size overflow checking -static void* stbi__malloc_mad2(int a, int b, int add) { - if(!stbi__mad2sizes_valid(a, b, add)) return NULL; - return stbi__malloc(a * b + add); +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); } #endif -static void* stbi__malloc_mad3(int a, int b, int c, int add) { - if(!stbi__mad3sizes_valid(a, b, c, add)) return NULL; - return stbi__malloc(a * b * c + add); +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); } #if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) -static void* stbi__malloc_mad4(int a, int b, int c, int d, int add) { - if(!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; - return stbi__malloc(a * b * c * d + add); +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); } #endif // returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow. -static int stbi__addints_valid(int a, int b) { - if((a >= 0) != (b >= 0)) return 1; // a and b have different signs, so no overflow - if(a < 0 && b < 0) return a >= INT_MIN - b; // same as a + b >= INT_MIN; INT_MIN - b cannot overflow since b < 0. - return a <= INT_MAX - b; +static int stbi__addints_valid(int a, int b) +{ + if ((a >= 0) != (b >= 0)) return 1; // a and b have different signs, so no overflow + if (a < 0 && b < 0) return a >= INT_MIN - b; // same as a + b >= INT_MIN; INT_MIN - b cannot overflow since b < 0. + return a <= INT_MAX - b; } // returns 1 if the product of two ints fits in a signed short, 0 on overflow. -static int stbi__mul2shorts_valid(int a, int b) { - if(b == 0 || b == -1) return 1; // multiplication by 0 is always 0; check for -1 so SHRT_MIN/b doesn't overflow - if((a >= 0) == (b >= 0)) return a <= SHRT_MAX / b; // product is positive, so similar to mul2sizes_valid - if(b < 0) return a <= SHRT_MIN / b; // same as a * b >= SHRT_MIN - return a >= SHRT_MIN / b; +static int stbi__mul2shorts_valid(int a, int b) +{ + if (b == 0 || b == -1) return 1; // multiplication by 0 is always 0; check for -1 so SHRT_MIN/b doesn't overflow + if ((a >= 0) == (b >= 0)) return a <= SHRT_MAX/b; // product is positive, so similar to mul2sizes_valid + if (b < 0) return a <= SHRT_MIN / b; // same as a * b >= SHRT_MIN + return a >= SHRT_MIN / b; } // stbi__err - error @@ -1052,394 +1088,423 @@ static int stbi__mul2shorts_valid(int a, int b) { // stbi__errpuc - error returning pointer to unsigned char #ifdef STBI_NO_FAILURE_STRINGS -#define stbi__err(x, y) 0 + #define stbi__err(x,y) 0 #elif defined(STBI_FAILURE_USERMSG) -#define stbi__err(x, y) stbi__err(y) + #define stbi__err(x,y) stbi__err(y) #else -#define stbi__err(x, y) stbi__err(x) + #define stbi__err(x,y) stbi__err(x) #endif -#define stbi__errpf(x, y) ((float*)(size_t)(stbi__err(x, y) ? NULL : NULL)) -#define stbi__errpuc(x, y) ((unsigned char*)(size_t)(stbi__err(x, y) ? NULL : NULL)) +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) -STBIDEF void stbi_image_free(void* retval_from_stbi_load) { - STBI_FREE(retval_from_stbi_load); +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); } #ifndef STBI_NO_LINEAR -static float* stbi__ldr_to_hdr(stbi_uc* data, int x, int y, int comp); +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); #endif #ifndef STBI_NO_HDR -static stbi_uc* stbi__hdr_to_ldr(float* data, int x, int y, int comp); +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); #endif static int stbi__vertically_flip_on_load_global = 0; -STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) { - stbi__vertically_flip_on_load_global = flag_true_if_should_flip; +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_global = flag_true_if_should_flip; } #ifndef STBI_THREAD_LOCAL -#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global +#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global #else static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; -STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) { - stbi__vertically_flip_on_load_local = flag_true_if_should_flip; - stbi__vertically_flip_on_load_set = 1; +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_local = flag_true_if_should_flip; + stbi__vertically_flip_on_load_set = 1; } -#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ - ? stbi__vertically_flip_on_load_local \ - : stbi__vertically_flip_on_load_global) +#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ + ? stbi__vertically_flip_on_load_local \ + : stbi__vertically_flip_on_load_global) #endif // STBI_THREAD_LOCAL -static void* stbi__load_main(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri, int bpc) { - memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields - ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed - ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order - ri->num_channels = 0; +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; -// test the formats with a very explicit header first (at least a FOURCC -// or distinctive magic number first) -#ifndef STBI_NO_PNG - if(stbi__png_test(s)) return stbi__png_load(s, x, y, comp, req_comp, ri); -#endif -#ifndef STBI_NO_BMP - if(stbi__bmp_test(s)) return stbi__bmp_load(s, x, y, comp, req_comp, ri); -#endif -#ifndef STBI_NO_GIF - if(stbi__gif_test(s)) return stbi__gif_load(s, x, y, comp, req_comp, ri); -#endif -#ifndef STBI_NO_PSD - if(stbi__psd_test(s)) return stbi__psd_load(s, x, y, comp, req_comp, ri, bpc); -#else - STBI_NOTUSED(bpc); -#endif -#ifndef STBI_NO_PIC - if(stbi__pic_test(s)) return stbi__pic_load(s, x, y, comp, req_comp, ri); -#endif + // test the formats with a very explicit header first (at least a FOURCC + // or distinctive magic number first) + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #else + STBI_NOTUSED(bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif -// then the formats that can end up attempting to load with just 1 or 2 -// bytes matching expectations; these are prone to false positives, so -// try them later -#ifndef STBI_NO_JPEG - if(stbi__jpeg_test(s)) return stbi__jpeg_load(s, x, y, comp, req_comp, ri); -#endif -#ifndef STBI_NO_PNM - if(stbi__pnm_test(s)) return stbi__pnm_load(s, x, y, comp, req_comp, ri); -#endif + // then the formats that can end up attempting to load with just 1 or 2 + // bytes matching expectations; these are prone to false positives, so + // try them later + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif -#ifndef STBI_NO_HDR - if(stbi__hdr_test(s)) { - float* hdr = stbi__hdr_load(s, x, y, comp, req_comp, ri); - return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); - } -#endif + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif -#ifndef STBI_NO_TGA - // test tga last because it's a crappy test! - if(stbi__tga_test(s)) - return stbi__tga_load(s, x, y, comp, req_comp, ri); -#endif + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif - return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); } -static stbi_uc* stbi__convert_16_to_8(stbi__uint16* orig, int w, int h, int channels) { - int i; - int img_len = w * h * channels; - stbi_uc* reduced; +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; - reduced = (stbi_uc*)stbi__malloc(img_len); - if(reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); - for(i = 0; i < img_len; ++i) - reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling - STBI_FREE(orig); - return reduced; + STBI_FREE(orig); + return reduced; } -static stbi__uint16* stbi__convert_8_to_16(stbi_uc* orig, int w, int h, int channels) { - int i; - int img_len = w * h * channels; - stbi__uint16* enlarged; +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; - enlarged = (stbi__uint16*)stbi__malloc(img_len * 2); - if(enlarged == NULL) return (stbi__uint16*)stbi__errpuc("outofmem", "Out of memory"); + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); - for(i = 0; i < img_len; ++i) - enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff - STBI_FREE(orig); - return enlarged; + STBI_FREE(orig); + return enlarged; } -static void stbi__vertical_flip(void* image, int w, int h, int bytes_per_pixel) { - int row; - size_t bytes_per_row = (size_t)w * bytes_per_pixel; - stbi_uc temp[2048]; - stbi_uc* bytes = (stbi_uc*)image; +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; - for(row = 0; row < (h >> 1); row++) { - stbi_uc* row0 = bytes + row * bytes_per_row; - stbi_uc* row1 = bytes + (h - row - 1) * bytes_per_row; - // swap row0 with row1 - size_t bytes_left = bytes_per_row; - while(bytes_left) { - size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); - memcpy(temp, row0, bytes_copy); - memcpy(row0, row1, bytes_copy); - memcpy(row1, temp, bytes_copy); - row0 += bytes_copy; - row1 += bytes_copy; - bytes_left -= bytes_copy; - } - } + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } } #ifndef STBI_NO_GIF -static void stbi__vertical_flip_slices(void* image, int w, int h, int z, int bytes_per_pixel) { - int slice; - int slice_size = w * h * bytes_per_pixel; +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; - stbi_uc* bytes = (stbi_uc*)image; - for(slice = 0; slice < z; ++slice) { - stbi__vertical_flip(bytes, w, h, bytes_per_pixel); - bytes += slice_size; - } + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } } #endif -static unsigned char* stbi__load_and_postprocess_8bit(stbi__context* s, int* x, int* y, int* comp, int req_comp) { - stbi__result_info ri; - void* result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); - if(result == NULL) - return NULL; + if (result == NULL) + return NULL; - // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. - STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); - if(ri.bits_per_channel != 8) { - result = stbi__convert_16_to_8((stbi__uint16*)result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 8; - } + if (ri.bits_per_channel != 8) { + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } - // @TODO: move stbi__convert_format to here + // @TODO: move stbi__convert_format to here - if(stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); - } + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } - return (unsigned char*)result; + return (unsigned char *) result; } -static stbi__uint16* stbi__load_and_postprocess_16bit(stbi__context* s, int* x, int* y, int* comp, int req_comp) { - stbi__result_info ri; - void* result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); - if(result == NULL) - return NULL; + if (result == NULL) + return NULL; - // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. - STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); - if(ri.bits_per_channel != 16) { - result = stbi__convert_8_to_16((stbi_uc*)result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 16; - } + if (ri.bits_per_channel != 16) { + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } - // @TODO: move stbi__convert_format16 to here - // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision - if(stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); - } + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } - return (stbi__uint16*)result; + return (stbi__uint16 *) result; } #if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) -static void stbi__float_postprocess(float* result, int* x, int* y, int* comp, int req_comp) { - if(stbi__vertically_flip_on_load && result != NULL) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); - } +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } } #endif #ifndef STBI_NO_STDIO #if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) -STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char* str, int cbmb, wchar_t* widestr, int cchwide); -STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t* widestr, int cchwide, char* str, int cbmb, const char* defchar, int* used_default); +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); #endif #if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) -STBIDEF int stbi_convert_wchar_to_utf8(char* buffer, size_t bufferlen, const wchar_t* input) { - return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int)bufferlen, NULL, NULL); +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); } #endif -static FILE* stbi__fopen(char const* filename, char const* mode) { - FILE* f; +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; #if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) - wchar_t wMode[64]; - wchar_t wFilename[1024]; - if(0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename) / sizeof(*wFilename))) - return 0; + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename))) + return 0; - if(0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode) / sizeof(*wMode))) - return 0; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode))) + return 0; #if defined(_MSC_VER) && _MSC_VER >= 1400 - if(0 != _wfopen_s(&f, wFilename, wMode)) + if (0 != _wfopen_s(&f, wFilename, wMode)) f = 0; #else - f = _wfopen(wFilename, wMode); + f = _wfopen(wFilename, wMode); #endif #elif defined(_MSC_VER) && _MSC_VER >= 1400 - if(0 != fopen_s(&f, filename, mode)) - f = 0; + if (0 != fopen_s(&f, filename, mode)) + f=0; #else - f = fopen(filename, mode); + f = fopen(filename, mode); #endif - return f; + return f; } -STBIDEF stbi_uc* stbi_load(char const* filename, int* x, int* y, int* comp, int req_comp) { - FILE* f = stbi__fopen(filename, "rb"); - unsigned char* result; - if(!f) return stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file(f, x, y, comp, req_comp); - fclose(f); - return result; + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; } -STBIDEF stbi_uc* stbi_load_from_file(FILE* f, int* x, int* y, int* comp, int req_comp) { - unsigned char* result; - stbi__context s; - stbi__start_file(&s, f); - result = stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp); - if(result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, -(int)(s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; } -STBIDEF stbi__uint16* stbi_load_from_file_16(FILE* f, int* x, int* y, int* comp, int req_comp) { - stbi__uint16* result; - stbi__context s; - stbi__start_file(&s, f); - result = stbi__load_and_postprocess_16bit(&s, x, y, comp, req_comp); - if(result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, -(int)(s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; } -STBIDEF stbi_us* stbi_load_16(char const* filename, int* x, int* y, int* comp, int req_comp) { - FILE* f = stbi__fopen(filename, "rb"); - stbi__uint16* result; - if(!f) return (stbi_us*)stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file_16(f, x, y, comp, req_comp); - fclose(f); - return result; +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; } -#endif //! STBI_NO_STDIO -STBIDEF stbi_us* stbi_load_16_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* channels_in_file, int desired_channels) { - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__load_and_postprocess_16bit(&s, x, y, channels_in_file, desired_channels); +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); } -STBIDEF stbi_us* stbi_load_16_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* channels_in_file, int desired_channels) { - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)clbk, user); - return stbi__load_and_postprocess_16bit(&s, x, y, channels_in_file, desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); } -STBIDEF stbi_uc* stbi_load_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp, int req_comp) { - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp); +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); } -STBIDEF stbi_uc* stbi_load_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp, int req_comp) { - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)clbk, user); - return stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); } #ifndef STBI_NO_GIF -STBIDEF stbi_uc* stbi_load_gif_from_memory(stbi_uc const* buffer, int len, int** delays, int* x, int* y, int* z, int* comp, int req_comp) { - unsigned char* result; - stbi__context s; - stbi__start_mem(&s, buffer, len); +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); - result = (unsigned char*)stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); - if(stbi__vertically_flip_on_load) { - stbi__vertical_flip_slices(result, *x, *y, *z, *comp); - } + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } - return result; + return result; } #endif #ifndef STBI_NO_LINEAR -static float* stbi__loadf_main(stbi__context* s, int* x, int* y, int* comp, int req_comp) { - unsigned char* data; -#ifndef STBI_NO_HDR - if(stbi__hdr_test(s)) { - stbi__result_info ri; - float* hdr_data = stbi__hdr_load(s, x, y, comp, req_comp, &ri); - if(hdr_data) - stbi__float_postprocess(hdr_data, x, y, comp, req_comp); - return hdr_data; - } -#endif - data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); - if(data) - return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); - return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); } -STBIDEF float* stbi_loadf_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp, int req_comp) { - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__loadf_main(&s, x, y, comp, req_comp); +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); } -STBIDEF float* stbi_loadf_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp, int req_comp) { - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)clbk, user); - return stbi__loadf_main(&s, x, y, comp, req_comp); +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); } #ifndef STBI_NO_STDIO -STBIDEF float* stbi_loadf(char const* filename, int* x, int* y, int* comp, int req_comp) { - float* result; - FILE* f = stbi__fopen(filename, "rb"); - if(!f) return stbi__errpf("can't fopen", "Unable to open file"); - result = stbi_loadf_from_file(f, x, y, comp, req_comp); - fclose(f); - return result; +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; } -STBIDEF float* stbi_loadf_from_file(FILE* f, int* x, int* y, int* comp, int req_comp) { - stbi__context s; - stbi__start_file(&s, f); - return stbi__loadf_main(&s, x, y, comp, req_comp); +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); } #endif // !STBI_NO_STDIO @@ -1449,213 +1514,220 @@ STBIDEF float* stbi_loadf_from_file(FILE* f, int* x, int* y, int* comp, int req_ // defined, for API simplicity; if STBI_NO_LINEAR is defined, it always // reports false! -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const* buffer, int len) { -#ifndef STBI_NO_HDR - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__hdr_test(&s); -#else - STBI_NOTUSED(buffer); - STBI_NOTUSED(len); - return 0; -#endif +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif } #ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr(char const* filename) { - FILE* f = stbi__fopen(filename, "rb"); - int result = 0; - if(f) { - result = stbi_is_hdr_from_file(f); - fclose(f); - } - return result; +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; } -STBIDEF int stbi_is_hdr_from_file(FILE* f) { -#ifndef STBI_NO_HDR - long pos = ftell(f); - int res; - stbi__context s; - stbi__start_file(&s, f); - res = stbi__hdr_test(&s); - fseek(f, pos, SEEK_SET); - return res; -#else - STBI_NOTUSED(f); - return 0; -#endif +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif } #endif // !STBI_NO_STDIO -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const* clbk, void* user) { -#ifndef STBI_NO_HDR - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)clbk, user); - return stbi__hdr_test(&s); -#else - STBI_NOTUSED(clbk); - STBI_NOTUSED(user); - return 0; -#endif +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif } #ifndef STBI_NO_LINEAR -static float stbi__l2h_gamma = 2.2f, stbi__l2h_scale = 1.0f; +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; -STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { - stbi__l2h_gamma = gamma; -} -STBIDEF void stbi_ldr_to_hdr_scale(float scale) { - stbi__l2h_scale = scale; -} +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } #endif -static float stbi__h2l_gamma_i = 1.0f / 2.2f, stbi__h2l_scale_i = 1.0f; +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } -STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { - stbi__h2l_gamma_i = 1 / gamma; -} -STBIDEF void stbi_hdr_to_ldr_scale(float scale) { - stbi__h2l_scale_i = 1 / scale; -} ////////////////////////////////////////////////////////////////////////////// // // Common code used by all image loaders // -enum { - STBI__SCAN_load = 0, - STBI__SCAN_type, - STBI__SCAN_header +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header }; -static void stbi__refill_buffer(stbi__context* s) { - int n = (s->io.read)(s->io_user_data, (char*)s->buffer_start, s->buflen); - s->callback_already_read += (int)(s->img_buffer - s->img_buffer_original); - if(n == 0) { - // at end of file, treat same as if from memory, but need to handle case - // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file - s->read_from_callbacks = 0; - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start + 1; - *s->img_buffer = 0; - } else { - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start + n; - } +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } } -stbi_inline static stbi_uc stbi__get8(stbi__context* s) { - if(s->img_buffer < s->img_buffer_end) - return *s->img_buffer++; - if(s->read_from_callbacks) { - stbi__refill_buffer(s); - return *s->img_buffer++; - } - return 0; +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; } #if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) // nothing #else -stbi_inline static int stbi__at_eof(stbi__context* s) { - if(s->io.read) { - if(!(s->io.eof)(s->io_user_data)) return 0; - // if feof() is true, check if buffer = end - // special case: we've only got the special 0 character at the end - if(s->read_from_callbacks == 0) return 1; - } +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } - return s->img_buffer >= s->img_buffer_end; + return s->img_buffer >= s->img_buffer_end; } #endif #if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) // nothing #else -static void stbi__skip(stbi__context* s, int n) { - if(n == 0) return; // already there! - if(n < 0) { - s->img_buffer = s->img_buffer_end; - return; - } - if(s->io.read) { - int blen = (int)(s->img_buffer_end - s->img_buffer); - if(blen < n) { - s->img_buffer = s->img_buffer_end; - (s->io.skip)(s->io_user_data, n - blen); - return; - } - } - s->img_buffer += n; +static void stbi__skip(stbi__context *s, int n) +{ + if (n == 0) return; // already there! + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; } #endif #if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) // nothing #else -static int stbi__getn(stbi__context* s, stbi_uc* buffer, int n) { - if(s->io.read) { - int blen = (int)(s->img_buffer_end - s->img_buffer); - if(blen < n) { - int res, count; +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; - memcpy(buffer, s->img_buffer, blen); + memcpy(buffer, s->img_buffer, blen); - count = (s->io.read)(s->io_user_data, (char*)buffer + blen, n - blen); - res = (count == (n - blen)); - s->img_buffer = s->img_buffer_end; - return res; - } - } + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } - if(s->img_buffer + n <= s->img_buffer_end) { - memcpy(buffer, s->img_buffer, n); - s->img_buffer += n; - return 1; - } else - return 0; + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; } #endif #if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) // nothing #else -static int stbi__get16be(stbi__context* s) { - int z = stbi__get8(s); - return (z << 8) + stbi__get8(s); +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); } #endif #if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) // nothing #else -static stbi__uint32 stbi__get32be(stbi__context* s) { - stbi__uint32 z = stbi__get16be(s); - return (z << 16) + stbi__get16be(s); +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); } #endif #if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) // nothing #else -static int stbi__get16le(stbi__context* s) { - int z = stbi__get8(s); - return z + (stbi__get8(s) << 8); +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); } #endif #ifndef STBI_NO_BMP -static stbi__uint32 stbi__get32le(stbi__context* s) { - stbi__uint32 z = stbi__get16le(s); - z += (stbi__uint32)stbi__get16le(s) << 16; - return z; +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + z += (stbi__uint32)stbi__get16le(s) << 16; + return z; } #endif -#define STBI__BYTECAST(x) ((stbi_uc)((x) & 255)) // truncate int to byte without warnings +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings #if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) // nothing @@ -1671,277 +1743,169 @@ static stbi__uint32 stbi__get32le(stbi__context* s) { // assume data buffer is malloced, so malloc a new one and free that one // only failure mode is malloc failing -static stbi_uc stbi__compute_y(int r, int g, int b) { - return (stbi_uc)(((r * 77) + (g * 150) + (29 * b)) >> 8); +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); } #endif #if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) // nothing #else -static unsigned char* stbi__convert_format(unsigned char* data, int img_n, int req_comp, unsigned int x, unsigned int y) { - int i, j; - unsigned char* good; +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; - if(req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - good = (unsigned char*)stbi__malloc_mad3(req_comp, x, y, 0); - if(good == NULL) { - STBI_FREE(data); - return stbi__errpuc("outofmem", "Out of memory"); - } + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } - for(j = 0; j < (int)y; ++j) { - unsigned char* src = data + j * x * img_n; - unsigned char* dest = good + j * x * req_comp; + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; -#define STBI__COMBO(a, b) ((a) * 8 + (b)) -#define STBI__CASE(a, b) \ - case STBI__COMBO(a, b): \ - for(i = x - 1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch(STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1, 2) { - dest[0] = src[0]; - dest[1] = 255; - } - break; - STBI__CASE(1, 3) { - dest[0] = dest[1] = dest[2] = src[0]; - } - break; - STBI__CASE(1, 4) { - dest[0] = dest[1] = dest[2] = src[0]; - dest[3] = 255; - } - break; - STBI__CASE(2, 1) { - dest[0] = src[0]; - } - break; - STBI__CASE(2, 3) { - dest[0] = dest[1] = dest[2] = src[0]; - } - break; - STBI__CASE(2, 4) { - dest[0] = dest[1] = dest[2] = src[0]; - dest[3] = src[1]; - } - break; - STBI__CASE(3, 4) { - dest[0] = src[0]; - dest[1] = src[1]; - dest[2] = src[2]; - dest[3] = 255; - } - break; - STBI__CASE(3, 1) { - dest[0] = stbi__compute_y(src[0], src[1], src[2]); - } - break; - STBI__CASE(3, 2) { - dest[0] = stbi__compute_y(src[0], src[1], src[2]); - dest[1] = 255; - } - break; - STBI__CASE(4, 1) { - dest[0] = stbi__compute_y(src[0], src[1], src[2]); - } - break; - STBI__CASE(4, 2) { - dest[0] = stbi__compute_y(src[0], src[1], src[2]); - dest[1] = src[3]; - } - break; - STBI__CASE(4, 3) { - dest[0] = src[0]; - dest[1] = src[1]; - dest[2] = src[2]; - } - break; - default: - STBI_ASSERT(0); - STBI_FREE(data); - STBI_FREE(good); - return stbi__errpuc("unsupported", "Unsupported format conversion"); - } -#undef STBI__CASE - } + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } - STBI_FREE(data); - return good; + STBI_FREE(data); + return good; } #endif #if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) // nothing #else -static stbi__uint16 stbi__compute_y_16(int r, int g, int b) { - return (stbi__uint16)(((r * 77) + (g * 150) + (29 * b)) >> 8); +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); } #endif #if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) // nothing #else -static stbi__uint16* stbi__convert_format16(stbi__uint16* data, int img_n, int req_comp, unsigned int x, unsigned int y) { - int i, j; - stbi__uint16* good; +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; - if(req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - good = (stbi__uint16*)stbi__malloc(req_comp * x * y * 2); - if(good == NULL) { - STBI_FREE(data); - return (stbi__uint16*)stbi__errpuc("outofmem", "Out of memory"); - } + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } - for(j = 0; j < (int)y; ++j) { - stbi__uint16* src = data + j * x * img_n; - stbi__uint16* dest = good + j * x * req_comp; + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; -#define STBI__COMBO(a, b) ((a) * 8 + (b)) -#define STBI__CASE(a, b) \ - case STBI__COMBO(a, b): \ - for(i = x - 1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch(STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1, 2) { - dest[0] = src[0]; - dest[1] = 0xffff; - } - break; - STBI__CASE(1, 3) { - dest[0] = dest[1] = dest[2] = src[0]; - } - break; - STBI__CASE(1, 4) { - dest[0] = dest[1] = dest[2] = src[0]; - dest[3] = 0xffff; - } - break; - STBI__CASE(2, 1) { - dest[0] = src[0]; - } - break; - STBI__CASE(2, 3) { - dest[0] = dest[1] = dest[2] = src[0]; - } - break; - STBI__CASE(2, 4) { - dest[0] = dest[1] = dest[2] = src[0]; - dest[3] = src[1]; - } - break; - STBI__CASE(3, 4) { - dest[0] = src[0]; - dest[1] = src[1]; - dest[2] = src[2]; - dest[3] = 0xffff; - } - break; - STBI__CASE(3, 1) { - dest[0] = stbi__compute_y_16(src[0], src[1], src[2]); - } - break; - STBI__CASE(3, 2) { - dest[0] = stbi__compute_y_16(src[0], src[1], src[2]); - dest[1] = 0xffff; - } - break; - STBI__CASE(4, 1) { - dest[0] = stbi__compute_y_16(src[0], src[1], src[2]); - } - break; - STBI__CASE(4, 2) { - dest[0] = stbi__compute_y_16(src[0], src[1], src[2]); - dest[1] = src[3]; - } - break; - STBI__CASE(4, 3) { - dest[0] = src[0]; - dest[1] = src[1]; - dest[2] = src[2]; - } - break; - default: - STBI_ASSERT(0); - STBI_FREE(data); - STBI_FREE(good); - return (stbi__uint16*)stbi__errpuc("unsupported", "Unsupported format conversion"); - } -#undef STBI__CASE - } + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } - STBI_FREE(data); - return good; + STBI_FREE(data); + return good; } #endif #ifndef STBI_NO_LINEAR -static float* stbi__ldr_to_hdr(stbi_uc* data, int x, int y, int comp) { - int i, k, n; - float* output; - if(!data) return NULL; - output = (float*)stbi__malloc_mad4(x, y, comp, sizeof(float), 0); - if(output == NULL) { - STBI_FREE(data); - return stbi__errpf("outofmem", "Out of memory"); - } - // compute number of non-alpha components - if(comp & 1) n = comp; - else - n = comp - 1; - for(i = 0; i < x * y; ++i) { - for(k = 0; k < n; ++k) { - output[i * comp + k] = (float)(pow(data[i * comp + k] / 255.0f, stbi__l2h_gamma) * stbi__l2h_scale); - } - } - if(n < comp) { - for(i = 0; i < x * y; ++i) { - output[i * comp + n] = data[i * comp + n] / 255.0f; - } - } - STBI_FREE(data); - return output; +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; } #endif #ifndef STBI_NO_HDR -#define stbi__float2int(x) ((int)(x)) -static stbi_uc* stbi__hdr_to_ldr(float* data, int x, int y, int comp) { - int i, k, n; - stbi_uc* output; - if(!data) return NULL; - output = (stbi_uc*)stbi__malloc_mad3(x, y, comp, 0); - if(output == NULL) { - STBI_FREE(data); - return stbi__errpuc("outofmem", "Out of memory"); - } - // compute number of non-alpha components - if(comp & 1) n = comp; - else - n = comp - 1; - for(i = 0; i < x * y; ++i) { - for(k = 0; k < n; ++k) { - float z = (float)pow(data[i * comp + k] * stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; - if(z < 0) z = 0; - if(z > 255) z = 255; - output[i * comp + k] = (stbi_uc)stbi__float2int(z); - } - if(k < comp) { - float z = data[i * comp + k] * 255 + 0.5f; - if(z < 0) z = 0; - if(z > 255) z = 255; - output[i * comp + k] = (stbi_uc)stbi__float2int(z); - } - } - STBI_FREE(data); - return output; +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; } #endif @@ -1969,758 +1933,763 @@ static stbi_uc* stbi__hdr_to_ldr(float* data, int x, int y, int comp) { #ifndef STBI_NO_JPEG // huffman decoding acceleration -#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache typedef struct { - stbi_uc fast[1 << FAST_BITS]; - // weirdly, repacking this into AoS is a 10% speed loss, instead of a win - stbi__uint16 code[256]; - stbi_uc values[256]; - stbi_uc size[257]; - unsigned int maxcode[18]; - int delta[17]; // old 'firstsymbol' - old 'firstcode' + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' } stbi__huffman; typedef struct { - stbi__context* s; - stbi__huffman huff_dc[4]; - stbi__huffman huff_ac[4]; - stbi__uint16 dequant[4][64]; - stbi__int16 fast_ac[4][1 << FAST_BITS]; + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; - // sizes for components, interleaved MCUs - int img_h_max, img_v_max; - int img_mcu_x, img_mcu_y; - int img_mcu_w, img_mcu_h; +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; - // definition of jpeg image component - struct - { - int id; - int h, v; - int tq; - int hd, ha; - int dc_pred; +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; - int x, y, w2, h2; - stbi_uc* data; - void * raw_data, *raw_coeff; - stbi_uc* linebuf; - short* coeff; // progressive only - int coeff_w, coeff_h; // number of 8x8 coefficient blocks - } img_comp[4]; + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; - stbi__uint32 code_buffer; // jpeg entropy-coded buffer - int code_bits; // number of valid bits - unsigned char marker; // marker seen while filling entropy buffer - int nomore; // flag if we saw a marker so must stop + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop - int progressive; - int spec_start; - int spec_end; - int succ_high; - int succ_low; - int eob_run; - int jfif; - int app14_color_transform; // Adobe APP14 tag - int rgb; + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; - int scan_n, order[4]; - int restart_interval, todo; + int scan_n, order[4]; + int restart_interval, todo; - // kernels - void (*idct_block_kernel)(stbi_uc* out, int out_stride, short data[64]); - void (*YCbCr_to_RGB_kernel)(stbi_uc* out, const stbi_uc* y, const stbi_uc* pcb, const stbi_uc* pcr, int count, int step); - stbi_uc* (*resample_row_hv_2_kernel)(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs); +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); } stbi__jpeg; -static int stbi__build_huffman(stbi__huffman* h, int* count) { - int i, j, k = 0; - unsigned int code; - // build size list for each symbol (from JPEG spec) - for(i = 0; i < 16; ++i) { - for(j = 0; j < count[i]; ++j) { - h->size[k++] = (stbi_uc)(i + 1); - if(k >= 257) return stbi__err("bad size list", "Corrupt JPEG"); - } - } - h->size[k] = 0; +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) { + for (j=0; j < count[i]; ++j) { + h->size[k++] = (stbi_uc) (i+1); + if(k >= 257) return stbi__err("bad size list","Corrupt JPEG"); + } + } + h->size[k] = 0; - // compute actual symbols (from jpeg spec) - code = 0; - k = 0; - for(j = 1; j <= 16; ++j) { - // compute delta to add to code to compute symbol id - h->delta[j] = k - code; - if(h->size[k] == j) { - while(h->size[k] == j) - h->code[k++] = (stbi__uint16)(code++); - if(code - 1 >= (1u << j)) return stbi__err("bad code lengths", "Corrupt JPEG"); - } - // compute largest code + 1 for this size, preshifted as needed later - h->maxcode[j] = code << (16 - j); - code <<= 1; - } - h->maxcode[j] = 0xffffffff; + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; - // build non-spec acceleration table; 255 is flag for not-accelerated - memset(h->fast, 255, 1 << FAST_BITS); - for(i = 0; i < k; ++i) { - int s = h->size[i]; - if(s <= FAST_BITS) { - int c = h->code[i] << (FAST_BITS - s); - int m = 1 << (FAST_BITS - s); - for(j = 0; j < m; ++j) { - h->fast[c + j] = (stbi_uc)i; - } - } - } - return 1; + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; } // build a table that decodes both magnitude and value of small ACs in // one go. -static void stbi__build_fast_ac(stbi__int16* fast_ac, stbi__huffman* h) { - int i; - for(i = 0; i < (1 << FAST_BITS); ++i) { - stbi_uc fast = h->fast[i]; - fast_ac[i] = 0; - if(fast < 255) { - int rs = h->values[fast]; - int run = (rs >> 4) & 15; - int magbits = rs & 15; - int len = h->size[fast]; +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; - if(magbits && len + magbits <= FAST_BITS) { - // magnitude code followed by receive_extend code - int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); - int m = 1 << (magbits - 1); - if(k < m) k += (~0U << magbits) + 1; - // if the result is small enough, we can fit it in fast_ac table - if(k >= -128 && k <= 127) - fast_ac[i] = (stbi__int16)((k * 256) + (run * 16) + (len + magbits)); - } - } - } + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } } -static void stbi__grow_buffer_unsafe(stbi__jpeg* j) { - do { - unsigned int b = j->nomore ? 0 : stbi__get8(j->s); - if(b == 0xff) { - int c = stbi__get8(j->s); - while(c == 0xff) c = stbi__get8(j->s); // consume fill bytes - if(c != 0) { - j->marker = (unsigned char)c; - j->nomore = 1; - return; - } - } - j->code_buffer |= b << (24 - j->code_bits); - j->code_bits += 8; - } while(j->code_bits <= 24); +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); } // (1 << n) - 1 -static const stbi__uint32 stbi__bmask[17] = {0, 1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535}; +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; // decode a jpeg huffman value from the bitstream -stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg* j, stbi__huffman* h) { - unsigned int temp; - int c, k; +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; - if(j->code_bits < 16) stbi__grow_buffer_unsafe(j); + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - // look at the top FAST_BITS and determine what symbol ID it is, - // if the code is <= FAST_BITS - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1); - k = h->fast[c]; - if(k < 255) { - int s = h->size[k]; - if(s > j->code_bits) - return -1; - j->code_buffer <<= s; - j->code_bits -= s; - return h->values[k]; - } + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } - // naive test is to shift the code_buffer down so k bits are - // valid, then test against maxcode. To speed this up, we've - // preshifted maxcode left so that it has (16-k) 0s at the - // end; in other words, regardless of the number of bits, it - // wants to be compared against something shifted to have 16; - // that way we don't need to shift inside the loop. - temp = j->code_buffer >> 16; - for(k = FAST_BITS + 1;; ++k) - if(temp < h->maxcode[k]) - break; - if(k == 17) { - // error! code not found - j->code_bits -= 16; - return -1; - } + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } - if(k > j->code_bits) - return -1; + if (k > j->code_bits) + return -1; - // convert the huffman code to the symbol id - c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; - if(c < 0 || c >= 256) // symbol id out of bounds! - return -1; - STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + if(c < 0 || c >= 256) // symbol id out of bounds! + return -1; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); - // convert the id to a symbol - j->code_bits -= k; - j->code_buffer <<= k; - return h->values[c]; + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; } // bias[n] = (-1<code_bits < n) stbi__grow_buffer_unsafe(j); - if(j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing +stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n) +{ + unsigned int k; + int sgn; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing - sgn = j->code_buffer >> 31; // sign bit always in MSB; 0 if MSB clear (positive), 1 if MSB set (negative) - k = stbi_lrot(j->code_buffer, n); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k + (stbi__jbias[n] & (sgn - 1)); + sgn = j->code_buffer >> 31; // sign bit always in MSB; 0 if MSB clear (positive), 1 if MSB set (negative) + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & (sgn - 1)); } // get some unsigned bits -stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg* j, int n) { - unsigned int k; - if(j->code_bits < n) stbi__grow_buffer_unsafe(j); - if(j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing - k = stbi_lrot(j->code_buffer, n); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k; +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; } -stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg* j) { - unsigned int k; - if(j->code_bits < 1) stbi__grow_buffer_unsafe(j); - if(j->code_bits < 1) return 0; // ran out of bits from stream, return 0s intead of continuing - k = j->code_buffer; - j->code_buffer <<= 1; - --j->code_bits; - return k & 0x80000000; +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + if (j->code_bits < 1) return 0; // ran out of bits from stream, return 0s intead of continuing + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; } // given a value that's at position X in the zigzag stream, // where does it appear in the 8x8 matrix coded as row-major? -static const stbi_uc stbi__jpeg_dezigzag[64 + 15] = - { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63, - // let corrupt input sample past end - 63, 63, 63, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63}; +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; // decode one 64-entry block-- -static int stbi__jpeg_decode_block(stbi__jpeg* j, short data[64], stbi__huffman* hdc, stbi__huffman* hac, stbi__int16* fac, int b, stbi__uint16* dequant) { - int diff, dc, k; - int t; +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; - if(j->code_bits < 16) stbi__grow_buffer_unsafe(j); - t = stbi__jpeg_huff_decode(j, hdc); - if(t < 0 || t > 15) return stbi__err("bad huffman code", "Corrupt JPEG"); + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0 || t > 15) return stbi__err("bad huffman code","Corrupt JPEG"); - // 0 all the ac values now so we can do it 32-bits at a time - memset(data, 0, 64 * sizeof(data[0])); + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); - diff = t ? stbi__extend_receive(j, t) : 0; - if(!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG"); - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - if(!stbi__mul2shorts_valid(dc, dequant[0])) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - data[0] = (short)(dc * dequant[0]); + diff = t ? stbi__extend_receive(j, t) : 0; + if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta","Corrupt JPEG"); + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + if (!stbi__mul2shorts_valid(dc, dequant[0])) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + data[0] = (short) (dc * dequant[0]); - // decode AC components, see JPEG spec - k = 1; - do { - unsigned int zig; - int c, r, s; - if(j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1); - r = fac[c]; - if(r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - if(s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); - j->code_buffer <<= s; - j->code_bits -= s; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short)((r >> 8) * dequant[zig]); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if(rs < 0) return stbi__err("bad huffman code", "Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if(s == 0) { - if(rs != 0xf0) break; // end block - k += 16; - } else { - k += r; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short)(stbi__extend_receive(j, s) * dequant[zig]); - } - } - } while(k < 64); - return 1; + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; } -static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg* j, short data[64], stbi__huffman* hdc, int b) { - int diff, dc; - int t; - if(j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - if(j->code_bits < 16) stbi__grow_buffer_unsafe(j); + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - if(j->succ_high == 0) { - // first scan for DC coefficient, must be first - memset(data, 0, 64 * sizeof(data[0])); // 0 all the ac values now - t = stbi__jpeg_huff_decode(j, hdc); - if(t < 0 || t > 15) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - diff = t ? stbi__extend_receive(j, t) : 0; + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0 || t > 15) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + diff = t ? stbi__extend_receive(j, t) : 0; - if(!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG"); - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - if(!stbi__mul2shorts_valid(dc, 1 << j->succ_low)) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - data[0] = (short)(dc * (1 << j->succ_low)); - } else { - // refinement scan for DC coefficient - if(stbi__jpeg_get_bit(j)) - data[0] += (short)(1 << j->succ_low); - } - return 1; + if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG"); + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + if (!stbi__mul2shorts_valid(dc, 1 << j->succ_low)) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + data[0] = (short) (dc * (1 << j->succ_low)); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; } // @OPTIMIZE: store non-zigzagged during the decode passes, // and only de-zigzag when dequantizing -static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg* j, short data[64], stbi__huffman* hac, stbi__int16* fac) { - int k; - if(j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - if(j->succ_high == 0) { - int shift = j->succ_low; + if (j->succ_high == 0) { + int shift = j->succ_low; - if(j->eob_run) { - --j->eob_run; - return 1; - } + if (j->eob_run) { + --j->eob_run; + return 1; + } - k = j->spec_start; - do { - unsigned int zig; - int c, r, s; - if(j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1); - r = fac[c]; - if(r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - if(s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); - j->code_buffer <<= s; - j->code_bits -= s; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short)((r >> 8) * (1 << shift)); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if(rs < 0) return stbi__err("bad huffman code", "Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if(s == 0) { - if(r < 15) { - j->eob_run = (1 << r); - if(r) - j->eob_run += stbi__jpeg_get_bits(j, r); - --j->eob_run; - break; - } - k += 16; - } else { - k += r; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short)(stbi__extend_receive(j, s) * (1 << shift)); - } - } - } while(k <= j->spec_end); - } else { - // refinement scan for these AC coefficients + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * (1 << shift)); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * (1 << shift)); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients - short bit = (short)(1 << j->succ_low); + short bit = (short) (1 << j->succ_low); - if(j->eob_run) { - --j->eob_run; - for(k = j->spec_start; k <= j->spec_end; ++k) { - short* p = &data[stbi__jpeg_dezigzag[k]]; - if(*p != 0) - if(stbi__jpeg_get_bit(j)) - if((*p & bit) == 0) { - if(*p > 0) - *p += bit; - else - *p -= bit; - } - } - } else { - k = j->spec_start; - do { - int r, s; - int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh - if(rs < 0) return stbi__err("bad huffman code", "Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if(s == 0) { - if(r < 15) { - j->eob_run = (1 << r) - 1; - if(r) - j->eob_run += stbi__jpeg_get_bits(j, r); - r = 64; // force end of block - } else { - // r=15 s=0 should write 16 0s, so we just do - // a run of 15 0s and then write s (which is 0), - // so we don't have to do anything special here - } - } else { - if(s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); - // sign bit - if(stbi__jpeg_get_bit(j)) - s = bit; - else - s = -bit; - } + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } - // advance by r - while(k <= j->spec_end) { - short* p = &data[stbi__jpeg_dezigzag[k++]]; - if(*p != 0) { - if(stbi__jpeg_get_bit(j)) - if((*p & bit) == 0) { - if(*p > 0) - *p += bit; - else - *p -= bit; - } - } else { - if(r == 0) { - *p = (short)s; - break; - } - --r; - } - } - } while(k <= j->spec_end); - } - } - return 1; + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; } // take a -128..127 value and stbi__clamp it and convert to 0..255 -stbi_inline static stbi_uc stbi__clamp(int x) { - // trick to use a single test to catch both cases - if((unsigned int)x > 255) { - if(x < 0) return 0; - if(x > 255) return 255; - } - return (stbi_uc)x; +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; } -#define stbi__f2f(x) ((int)(((x) * 4096 + 0.5))) -#define stbi__fsh(x) ((x) * 4096) +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) // derived from jidctint -- DCT_ISLOW -#define STBI__IDCT_1D(s0, s1, s2, s3, s4, s5, s6, s7) \ - int t0, t1, t2, t3, p1, p2, p3, p4, p5, x0, x1, x2, x3; \ - p2 = s2; \ - p3 = s6; \ - p1 = (p2 + p3) * stbi__f2f(0.5411961f); \ - t2 = p1 + p3 * stbi__f2f(-1.847759065f); \ - t3 = p1 + p2 * stbi__f2f(0.765366865f); \ - p2 = s0; \ - p3 = s4; \ - t0 = stbi__fsh(p2 + p3); \ - t1 = stbi__fsh(p2 - p3); \ - x0 = t0 + t3; \ - x3 = t0 - t3; \ - x1 = t1 + t2; \ - x2 = t1 - t2; \ - t0 = s7; \ - t1 = s5; \ - t2 = s3; \ - t3 = s1; \ - p3 = t0 + t2; \ - p4 = t1 + t3; \ - p1 = t0 + t3; \ - p2 = t1 + t2; \ - p5 = (p3 + p4) * stbi__f2f(1.175875602f); \ - t0 = t0 * stbi__f2f(0.298631336f); \ - t1 = t1 * stbi__f2f(2.053119869f); \ - t2 = t2 * stbi__f2f(3.072711026f); \ - t3 = t3 * stbi__f2f(1.501321110f); \ - p1 = p5 + p1 * stbi__f2f(-0.899976223f); \ - p2 = p5 + p2 * stbi__f2f(-2.562915447f); \ - p3 = p3 * stbi__f2f(-1.961570560f); \ - p4 = p4 * stbi__f2f(-0.390180644f); \ - t3 += p1 + p4; \ - t2 += p2 + p3; \ - t1 += p2 + p4; \ - t0 += p1 + p3; +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; -static void stbi__idct_block(stbi_uc* out, int out_stride, short data[64]) { - int i, val[64], *v = val; - stbi_uc* o; - short* d = data; +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; - // columns - for(i = 0; i < 8; ++i, ++d, ++v) { - // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing - if(d[8] == 0 && d[16] == 0 && d[24] == 0 && d[32] == 0 && d[40] == 0 && d[48] == 0 && d[56] == 0) { - // no shortcut 0 seconds - // (1|2|3|4|5|6|7)==0 0 seconds - // all separate -0.047 seconds - // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds - int dcterm = d[0] * 4; - v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; - } else { - STBI__IDCT_1D(d[0], d[8], d[16], d[24], d[32], d[40], d[48], d[56]) - // constants scaled things up by 1<<12; let's bring them back - // down, but keep 2 extra bits of precision - x0 += 512; - x1 += 512; - x2 += 512; - x3 += 512; - v[0] = (x0 + t3) >> 10; - v[56] = (x0 - t3) >> 10; - v[8] = (x1 + t2) >> 10; - v[48] = (x1 - t2) >> 10; - v[16] = (x2 + t1) >> 10; - v[40] = (x2 - t1) >> 10; - v[24] = (x3 + t0) >> 10; - v[32] = (x3 - t0) >> 10; - } - } + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } - for(i = 0, v = val, o = out; i < 8; ++i, v += 8, o += out_stride) { - // no fast case since the first 1D IDCT spread components out - STBI__IDCT_1D(v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]) - // constants scaled things up by 1<<12, plus we had 1<<2 from first - // loop, plus horizontal and vertical each scale by sqrt(8) so together - // we've got an extra 1<<3, so 1<<17 total we need to remove. - // so we want to round that, which means adding 0.5 * 1<<17, - // aka 65536. Also, we'll end up with -128 to 127 that we want - // to encode as 0..255 by adding 128, so we'll add that before the shift - x0 += 65536 + (128 << 17); - x1 += 65536 + (128 << 17); - x2 += 65536 + (128 << 17); - x3 += 65536 + (128 << 17); - // tried computing the shifts into temps, or'ing the temps to see - // if any were out of range, but that was slower - o[0] = stbi__clamp((x0 + t3) >> 17); - o[7] = stbi__clamp((x0 - t3) >> 17); - o[1] = stbi__clamp((x1 + t2) >> 17); - o[6] = stbi__clamp((x1 - t2) >> 17); - o[2] = stbi__clamp((x2 + t1) >> 17); - o[5] = stbi__clamp((x2 - t1) >> 17); - o[3] = stbi__clamp((x3 + t0) >> 17); - o[4] = stbi__clamp((x3 - t0) >> 17); - } + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } } #ifdef STBI_SSE2 // sse2 integer IDCT. not the fastest possible implementation but it // produces bit-identical results to the generic C version so it's // fully "transparent". -static void stbi__idct_simd(stbi_uc* out, int out_stride, short data[64]) { - // This is constructed to match our regular (generic) integer IDCT exactly. - __m128i row0, row1, row2, row3, row4, row5, row6, row7; - __m128i tmp; +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; -// dot product constant: even elems=x, odd elems=y -#define dct_const(x, y) _mm_setr_epi16((x), (y), (x), (y), (x), (y), (x), (y)) + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) -// out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) -// out(1) = c1[even]*x + c1[odd]*y -#define dct_rot(out0, out1, x, y, c0, c1) \ - __m128i c0##lo = _mm_unpacklo_epi16((x), (y)); \ - __m128i c0##hi = _mm_unpackhi_epi16((x), (y)); \ - __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ - __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ - __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ - __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) -// out = in << 12 (in 16-bit, out 32-bit) -#define dct_widen(out, in) \ - __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ - __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) -// wide add -#define dct_wadd(out, a, b) \ - __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) -// wide sub -#define dct_wsub(out, a, b) \ - __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) -// butterfly a/b, add bias, then shift by "s" and pack -#define dct_bfly32o(out0, out1, a, b, bias, s) \ - { \ - __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ - __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ - dct_wadd(sum, abiased, b); \ - dct_wsub(dif, abiased, b); \ - out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ - out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ - } + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } -// 8-bit interleave step (for transposes) -#define dct_interleave8(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi8(a, b); \ - b = _mm_unpackhi_epi8(tmp, b) + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) -// 16-bit interleave step (for transposes) -#define dct_interleave16(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi16(a, b); \ - b = _mm_unpackhi_epi16(tmp, b) + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) -#define dct_pass(bias, shift) \ - { \ - /* even part */ \ - dct_rot(t2e, t3e, row2, row6, rot0_0, rot0_1); \ - __m128i sum04 = _mm_add_epi16(row0, row4); \ - __m128i dif04 = _mm_sub_epi16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - dct_rot(y0o, y2o, row7, row3, rot2_0, rot2_1); \ - dct_rot(y1o, y3o, row5, row1, rot3_0, rot3_1); \ - __m128i sum17 = _mm_add_epi16(row1, row7); \ - __m128i sum35 = _mm_add_epi16(row3, row5); \ - dct_rot(y4o, y5o, sum17, sum35, rot1_0, rot1_1); \ - dct_wadd(x4, y0o, y4o); \ - dct_wadd(x5, y1o, y5o); \ - dct_wadd(x6, y2o, y5o); \ - dct_wadd(x7, y3o, y4o); \ - dct_bfly32o(row0, row7, x0, x7, bias, shift); \ - dct_bfly32o(row1, row6, x1, x6, bias, shift); \ - dct_bfly32o(row2, row5, x2, x5, bias, shift); \ - dct_bfly32o(row3, row4, x3, x4, bias, shift); \ - } + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } - __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); - __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f(0.765366865f), stbi__f2f(0.5411961f)); - __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); - __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); - __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f(0.298631336f), stbi__f2f(-1.961570560f)); - __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f(3.072711026f)); - __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f(2.053119869f), stbi__f2f(-0.390180644f)); - __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f(1.501321110f)); + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); - // rounding biases in column/row passes, see stbi__idct_block for explanation. - __m128i bias_0 = _mm_set1_epi32(512); - __m128i bias_1 = _mm_set1_epi32(65536 + (128 << 17)); + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); - // load - row0 = _mm_load_si128((const __m128i*)(data + 0 * 8)); - row1 = _mm_load_si128((const __m128i*)(data + 1 * 8)); - row2 = _mm_load_si128((const __m128i*)(data + 2 * 8)); - row3 = _mm_load_si128((const __m128i*)(data + 3 * 8)); - row4 = _mm_load_si128((const __m128i*)(data + 4 * 8)); - row5 = _mm_load_si128((const __m128i*)(data + 5 * 8)); - row6 = _mm_load_si128((const __m128i*)(data + 6 * 8)); - row7 = _mm_load_si128((const __m128i*)(data + 7 * 8)); + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); - // column pass - dct_pass(bias_0, 10); + // column pass + dct_pass(bias_0, 10); - { - // 16bit 8x8 transpose pass 1 - dct_interleave16(row0, row4); - dct_interleave16(row1, row5); - dct_interleave16(row2, row6); - dct_interleave16(row3, row7); + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); - // transpose pass 2 - dct_interleave16(row0, row2); - dct_interleave16(row1, row3); - dct_interleave16(row4, row6); - dct_interleave16(row5, row7); + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); - // transpose pass 3 - dct_interleave16(row0, row1); - dct_interleave16(row2, row3); - dct_interleave16(row4, row5); - dct_interleave16(row6, row7); - } + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } - // row pass - dct_pass(bias_1, 17); + // row pass + dct_pass(bias_1, 17); - { - // pack - __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 - __m128i p1 = _mm_packus_epi16(row2, row3); - __m128i p2 = _mm_packus_epi16(row4, row5); - __m128i p3 = _mm_packus_epi16(row6, row7); + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); - // 8bit 8x8 transpose pass 1 - dct_interleave8(p0, p2); // a0e0a1e1... - dct_interleave8(p1, p3); // c0g0c1g1... + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... - // transpose pass 2 - dct_interleave8(p0, p1); // a0c0e0g0... - dct_interleave8(p2, p3); // b0d0f0h0... + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... - // transpose pass 3 - dct_interleave8(p0, p2); // a0b0c0d0... - dct_interleave8(p1, p3); // a4b4c4d4... + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... - // store - _mm_storel_epi64((__m128i*)out, p0); - out += out_stride; - _mm_storel_epi64((__m128i*)out, _mm_shuffle_epi32(p0, 0x4e)); - out += out_stride; - _mm_storel_epi64((__m128i*)out, p2); - out += out_stride; - _mm_storel_epi64((__m128i*)out, _mm_shuffle_epi32(p2, 0x4e)); - out += out_stride; - _mm_storel_epi64((__m128i*)out, p1); - out += out_stride; - _mm_storel_epi64((__m128i*)out, _mm_shuffle_epi32(p1, 0x4e)); - out += out_stride; - _mm_storel_epi64((__m128i*)out, p3); - out += out_stride; - _mm_storel_epi64((__m128i*)out, _mm_shuffle_epi32(p3, 0x4e)); - } + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } #undef dct_const #undef dct_rot @@ -2739,235 +2708,198 @@ static void stbi__idct_simd(stbi_uc* out, int out_stride, short data[64]) { // NEON integer IDCT. should produce bit-identical // results to the generic C version. -static void stbi__idct_simd(stbi_uc* out, int out_stride, short data[64]) { - int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; - int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); - int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); - int16x4_t rot0_2 = vdup_n_s16(stbi__f2f(0.765366865f)); - int16x4_t rot1_0 = vdup_n_s16(stbi__f2f(1.175875602f)); - int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); - int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); - int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); - int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); - int16x4_t rot3_0 = vdup_n_s16(stbi__f2f(0.298631336f)); - int16x4_t rot3_1 = vdup_n_s16(stbi__f2f(2.053119869f)); - int16x4_t rot3_2 = vdup_n_s16(stbi__f2f(3.072711026f)); - int16x4_t rot3_3 = vdup_n_s16(stbi__f2f(1.501321110f)); + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); #define dct_long_mul(out, inq, coeff) \ - int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) #define dct_long_mac(out, acc, inq, coeff) \ - int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) #define dct_widen(out, inq) \ - int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ - int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) // wide add #define dct_wadd(out, a, b) \ - int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) // wide sub #define dct_wsub(out, a, b) \ - int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) // butterfly a/b, then shift using "shiftop" by "s" and pack -#define dct_bfly32o(out0, out1, a, b, shiftop, s) \ - { \ - dct_wadd(sum, a, b); \ - dct_wsub(dif, a, b); \ - out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ - out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ - } +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } #define dct_pass(shiftop, shift) \ - { \ - /* even part */ \ - int16x8_t sum26 = vaddq_s16(row2, row6); \ - dct_long_mul(p1e, sum26, rot0_0); \ - dct_long_mac(t2e, p1e, row6, rot0_1); \ - dct_long_mac(t3e, p1e, row2, rot0_2); \ - int16x8_t sum04 = vaddq_s16(row0, row4); \ - int16x8_t dif04 = vsubq_s16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - int16x8_t sum15 = vaddq_s16(row1, row5); \ - int16x8_t sum17 = vaddq_s16(row1, row7); \ - int16x8_t sum35 = vaddq_s16(row3, row5); \ - int16x8_t sum37 = vaddq_s16(row3, row7); \ - int16x8_t sumodd = vaddq_s16(sum17, sum35); \ - dct_long_mul(p5o, sumodd, rot1_0); \ - dct_long_mac(p1o, p5o, sum17, rot1_1); \ - dct_long_mac(p2o, p5o, sum35, rot1_2); \ - dct_long_mul(p3o, sum37, rot2_0); \ - dct_long_mul(p4o, sum15, rot2_1); \ - dct_wadd(sump13o, p1o, p3o); \ - dct_wadd(sump24o, p2o, p4o); \ - dct_wadd(sump23o, p2o, p3o); \ - dct_wadd(sump14o, p1o, p4o); \ - dct_long_mac(x4, sump13o, row7, rot3_0); \ - dct_long_mac(x5, sump24o, row5, rot3_1); \ - dct_long_mac(x6, sump23o, row3, rot3_2); \ - dct_long_mac(x7, sump14o, row1, rot3_3); \ - dct_bfly32o(row0, row7, x0, x7, shiftop, shift); \ - dct_bfly32o(row1, row6, x1, x6, shiftop, shift); \ - dct_bfly32o(row2, row5, x2, x5, shiftop, shift); \ - dct_bfly32o(row3, row4, x3, x4, shiftop, shift); \ - } + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } - // load - row0 = vld1q_s16(data + 0 * 8); - row1 = vld1q_s16(data + 1 * 8); - row2 = vld1q_s16(data + 2 * 8); - row3 = vld1q_s16(data + 3 * 8); - row4 = vld1q_s16(data + 4 * 8); - row5 = vld1q_s16(data + 5 * 8); - row6 = vld1q_s16(data + 6 * 8); - row7 = vld1q_s16(data + 7 * 8); + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); - // add DC bias - row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); - // column pass - dct_pass(vrshrn_n_s32, 10); + // column pass + dct_pass(vrshrn_n_s32, 10); - // 16bit 8x8 transpose - { + // 16bit 8x8 transpose + { // these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. // whether compilers actually get this is another story, sadly. -#define dct_trn16(x, y) \ - { \ - int16x8x2_t t = vtrnq_s16(x, y); \ - x = t.val[0]; \ - y = t.val[1]; \ - } -#define dct_trn32(x, y) \ - { \ - int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); \ - x = vreinterpretq_s16_s32(t.val[0]); \ - y = vreinterpretq_s16_s32(t.val[1]); \ - } -#define dct_trn64(x, y) \ - { \ - int16x8_t x0 = x; \ - int16x8_t y0 = y; \ - x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); \ - y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); \ - } +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } - // pass 1 - dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 - dct_trn16(row2, row3); - dct_trn16(row4, row5); - dct_trn16(row6, row7); + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); - // pass 2 - dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 - dct_trn32(row1, row3); - dct_trn32(row4, row6); - dct_trn32(row5, row7); + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); - // pass 3 - dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 - dct_trn64(row1, row5); - dct_trn64(row2, row6); - dct_trn64(row3, row7); + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); #undef dct_trn16 #undef dct_trn32 #undef dct_trn64 - } + } - // row pass - // vrshrn_n_s32 only supports shifts up to 16, we need - // 17. so do a non-rounding shift of 16 first then follow - // up with a rounding shift by 1. - dct_pass(vshrn_n_s32, 16); + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); - { - // pack and round - uint8x8_t p0 = vqrshrun_n_s16(row0, 1); - uint8x8_t p1 = vqrshrun_n_s16(row1, 1); - uint8x8_t p2 = vqrshrun_n_s16(row2, 1); - uint8x8_t p3 = vqrshrun_n_s16(row3, 1); - uint8x8_t p4 = vqrshrun_n_s16(row4, 1); - uint8x8_t p5 = vqrshrun_n_s16(row5, 1); - uint8x8_t p6 = vqrshrun_n_s16(row6, 1); - uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); - // again, these can translate into one instruction, but often don't. -#define dct_trn8_8(x, y) \ - { \ - uint8x8x2_t t = vtrn_u8(x, y); \ - x = t.val[0]; \ - y = t.val[1]; \ - } -#define dct_trn8_16(x, y) \ - { \ - uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); \ - x = vreinterpret_u8_u16(t.val[0]); \ - y = vreinterpret_u8_u16(t.val[1]); \ - } -#define dct_trn8_32(x, y) \ - { \ - uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); \ - x = vreinterpret_u8_u32(t.val[0]); \ - y = vreinterpret_u8_u32(t.val[1]); \ - } + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } - // sadly can't use interleaved stores here since we only write - // 8 bytes to each scan line! + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! - // 8x8 8-bit transpose pass 1 - dct_trn8_8(p0, p1); - dct_trn8_8(p2, p3); - dct_trn8_8(p4, p5); - dct_trn8_8(p6, p7); + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); - // pass 2 - dct_trn8_16(p0, p2); - dct_trn8_16(p1, p3); - dct_trn8_16(p4, p6); - dct_trn8_16(p5, p7); + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); - // pass 3 - dct_trn8_32(p0, p4); - dct_trn8_32(p1, p5); - dct_trn8_32(p2, p6); - dct_trn8_32(p3, p7); + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); - // store - vst1_u8(out, p0); - out += out_stride; - vst1_u8(out, p1); - out += out_stride; - vst1_u8(out, p2); - out += out_stride; - vst1_u8(out, p3); - out += out_stride; - vst1_u8(out, p4); - out += out_stride; - vst1_u8(out, p5); - out += out_stride; - vst1_u8(out, p6); - out += out_stride; - vst1_u8(out, p7); + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); #undef dct_trn8_8 #undef dct_trn8_16 #undef dct_trn8_32 - } + } #undef dct_long_mul #undef dct_long_mac @@ -2980,1198 +2912,1169 @@ static void stbi__idct_simd(stbi_uc* out, int out_stride, short data[64]) { #endif // STBI_NEON -#define STBI__MARKER_none 0xff +#define STBI__MARKER_none 0xff // if there's a pending marker from the entropy stream, return that // otherwise, fetch from the stream and get a marker. if there's no // marker, return 0xff, which is never a valid marker value -static stbi_uc stbi__get_marker(stbi__jpeg* j) { - stbi_uc x; - if(j->marker != STBI__MARKER_none) { - x = j->marker; - j->marker = STBI__MARKER_none; - return x; - } - x = stbi__get8(j->s); - if(x != 0xff) return STBI__MARKER_none; - while(x == 0xff) - x = stbi__get8(j->s); // consume repeated 0xff fill bytes - return x; +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; } // in each scan, we'll have scan_n components, and the order // of the components is specified by order[] -#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) // after a restart interval, stbi__jpeg_reset the entropy decoder and // the dc prediction -static void stbi__jpeg_reset(stbi__jpeg* j) { - j->code_bits = 0; - j->code_buffer = 0; - j->nomore = 0; - j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; - j->marker = STBI__MARKER_none; - j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; - j->eob_run = 0; - // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, - // since we don't even allow 1<<30 pixels +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels } -static int stbi__parse_entropy_coded_data(stbi__jpeg* z) { - stbi__jpeg_reset(z); - if(!z->progressive) { - if(z->scan_n == 1) { - int i, j; - STBI_SIMD_ALIGN(short, data[64]); - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x + 7) >> 3; - int h = (z->img_comp[n].y + 7) >> 3; - for(j = 0; j < h; ++j) { - for(i = 0; i < w; ++i) { - int ha = z->img_comp[n].ha; - if(!stbi__jpeg_decode_block(z, data, z->huff_dc + z->img_comp[n].hd, z->huff_ac + ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data + z->img_comp[n].w2 * j * 8 + i * 8, z->img_comp[n].w2, data); - // every data block is an MCU, so countdown the restart interval - if(--z->todo <= 0) { - if(z->code_bits < 24) stbi__grow_buffer_unsafe(z); - // if it's NOT a restart, then just bail, so we get corrupt data - // rather than no data - if(!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i, j, k, x, y; - STBI_SIMD_ALIGN(short, data[64]); - for(j = 0; j < z->img_mcu_y; ++j) { - for(i = 0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for(k = 0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for(y = 0; y < z->img_comp[n].v; ++y) { - for(x = 0; x < z->img_comp[n].h; ++x) { - int x2 = (i * z->img_comp[n].h + x) * 8; - int y2 = (j * z->img_comp[n].v + y) * 8; - int ha = z->img_comp[n].ha; - if(!stbi__jpeg_decode_block(z, data, z->huff_dc + z->img_comp[n].hd, z->huff_ac + ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data + z->img_comp[n].w2 * y2 + x2, z->img_comp[n].w2, data); - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if(--z->todo <= 0) { - if(z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if(!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } else { - if(z->scan_n == 1) { - int i, j; - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x + 7) >> 3; - int h = (z->img_comp[n].y + 7) >> 3; - for(j = 0; j < h; ++j) { - for(i = 0; i < w; ++i) { - short* data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - if(z->spec_start == 0) { - if(!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } else { - int ha = z->img_comp[n].ha; - if(!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) - return 0; - } - // every data block is an MCU, so countdown the restart interval - if(--z->todo <= 0) { - if(z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if(!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i, j, k, x, y; - for(j = 0; j < z->img_mcu_y; ++j) { - for(i = 0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for(k = 0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for(y = 0; y < z->img_comp[n].v; ++y) { - for(x = 0; x < z->img_comp[n].h; ++x) { - int x2 = (i * z->img_comp[n].h + x); - int y2 = (j * z->img_comp[n].v + y); - short* data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); - if(!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if(--z->todo <= 0) { - if(z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if(!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } } -static void stbi__jpeg_dequantize(short* data, stbi__uint16* dequant) { - int i; - for(i = 0; i < 64; ++i) - data[i] *= dequant[i]; +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; } -static void stbi__jpeg_finish(stbi__jpeg* z) { - if(z->progressive) { - // dequantize and idct the data - int i, j, n; - for(n = 0; n < z->s->img_n; ++n) { - int w = (z->img_comp[n].x + 7) >> 3; - int h = (z->img_comp[n].y + 7) >> 3; - for(j = 0; j < h; ++j) { - for(i = 0; i < w; ++i) { - short* data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); - z->idct_block_kernel(z->img_comp[n].data + z->img_comp[n].w2 * j * 8 + i * 8, z->img_comp[n].w2, data); - } - } - } - } +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } } -static int stbi__process_marker(stbi__jpeg* z, int m) { - int L; - switch(m) { - case STBI__MARKER_none: // no marker found - return stbi__err("expected marker", "Corrupt JPEG"); +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); - case 0xDD: // DRI - specify restart interval - if(stbi__get16be(z->s) != 4) return stbi__err("bad DRI len", "Corrupt JPEG"); - z->restart_interval = stbi__get16be(z->s); - return 1; + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; - case 0xDB: // DQT - define quantization table - L = stbi__get16be(z->s) - 2; - while(L > 0) { - int q = stbi__get8(z->s); - int p = q >> 4, sixteen = (p != 0); - int t = q & 15, i; - if(p != 0 && p != 1) return stbi__err("bad DQT type", "Corrupt JPEG"); - if(t > 3) return stbi__err("bad DQT table", "Corrupt JPEG"); + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); - for(i = 0; i < 64; ++i) - z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); - L -= (sixteen ? 129 : 65); - } - return L == 0; + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; - case 0xC4: // DHT - define huffman table - L = stbi__get16be(z->s) - 2; - while(L > 0) { - stbi_uc* v; - int sizes[16], i, n = 0; - int q = stbi__get8(z->s); - int tc = q >> 4; - int th = q & 15; - if(tc > 1 || th > 3) return stbi__err("bad DHT header", "Corrupt JPEG"); - for(i = 0; i < 16; ++i) { - sizes[i] = stbi__get8(z->s); - n += sizes[i]; - } - if(n > 256) return stbi__err("bad DHT header", "Corrupt JPEG"); // Loop over i < n would write past end of values! - L -= 17; - if(tc == 0) { - if(!stbi__build_huffman(z->huff_dc + th, sizes)) return 0; - v = z->huff_dc[th].values; - } else { - if(!stbi__build_huffman(z->huff_ac + th, sizes)) return 0; - v = z->huff_ac[th].values; - } - for(i = 0; i < n; ++i) - v[i] = stbi__get8(z->s); - if(tc != 0) - stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); - L -= n; - } - return L == 0; - } + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + if(n > 256) return stbi__err("bad DHT header","Corrupt JPEG"); // Loop over i < n would write past end of values! + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } - // check for comment block or APP blocks - if((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { - L = stbi__get16be(z->s); - if(L < 2) { - if(m == 0xFE) - return stbi__err("bad COM len", "Corrupt JPEG"); - else - return stbi__err("bad APP len", "Corrupt JPEG"); - } - L -= 2; + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; - if(m == 0xE0 && L >= 5) { // JFIF APP0 segment - static const unsigned char tag[5] = {'J', 'F', 'I', 'F', '\0'}; - int ok = 1; - int i; - for(i = 0; i < 5; ++i) - if(stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 5; - if(ok) - z->jfif = 1; - } else if(m == 0xEE && L >= 12) { // Adobe APP14 segment - static const unsigned char tag[6] = {'A', 'd', 'o', 'b', 'e', '\0'}; - int ok = 1; - int i; - for(i = 0; i < 6; ++i) - if(stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 6; - if(ok) { - stbi__get8(z->s); // version - stbi__get16be(z->s); // flags0 - stbi__get16be(z->s); // flags1 - z->app14_color_transform = stbi__get8(z->s); // color transform - L -= 6; - } - } + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } - stbi__skip(z->s, L); - return 1; - } + stbi__skip(z->s, L); + return 1; + } - return stbi__err("unknown marker", "Corrupt JPEG"); + return stbi__err("unknown marker","Corrupt JPEG"); } // after we see SOS -static int stbi__process_scan_header(stbi__jpeg* z) { - int i; - int Ls = stbi__get16be(z->s); - z->scan_n = stbi__get8(z->s); - if(z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int)z->s->img_n) return stbi__err("bad SOS component count", "Corrupt JPEG"); - if(Ls != 6 + 2 * z->scan_n) return stbi__err("bad SOS len", "Corrupt JPEG"); - for(i = 0; i < z->scan_n; ++i) { - int id = stbi__get8(z->s), which; - int q = stbi__get8(z->s); - for(which = 0; which < z->s->img_n; ++which) - if(z->img_comp[which].id == id) - break; - if(which == z->s->img_n) return 0; // no match - z->img_comp[which].hd = q >> 4; - if(z->img_comp[which].hd > 3) return stbi__err("bad DC huff", "Corrupt JPEG"); - z->img_comp[which].ha = q & 15; - if(z->img_comp[which].ha > 3) return stbi__err("bad AC huff", "Corrupt JPEG"); - z->order[i] = which; - } +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } - { - int aa; - z->spec_start = stbi__get8(z->s); - z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 - aa = stbi__get8(z->s); - z->succ_high = (aa >> 4); - z->succ_low = (aa & 15); - if(z->progressive) { - if(z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) - return stbi__err("bad SOS", "Corrupt JPEG"); - } else { - if(z->spec_start != 0) return stbi__err("bad SOS", "Corrupt JPEG"); - if(z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS", "Corrupt JPEG"); - z->spec_end = 63; - } - } + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } - return 1; + return 1; } -static int stbi__free_jpeg_components(stbi__jpeg* z, int ncomp, int why) { - int i; - for(i = 0; i < ncomp; ++i) { - if(z->img_comp[i].raw_data) { - STBI_FREE(z->img_comp[i].raw_data); - z->img_comp[i].raw_data = NULL; - z->img_comp[i].data = NULL; - } - if(z->img_comp[i].raw_coeff) { - STBI_FREE(z->img_comp[i].raw_coeff); - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].coeff = 0; - } - if(z->img_comp[i].linebuf) { - STBI_FREE(z->img_comp[i].linebuf); - z->img_comp[i].linebuf = NULL; - } - } - return why; +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; } -static int stbi__process_frame_header(stbi__jpeg* z, int scan) { - stbi__context* s = z->s; - int Lf, p, i, q, h_max = 1, v_max = 1, c; - Lf = stbi__get16be(s); - if(Lf < 11) return stbi__err("bad SOF len", "Corrupt JPEG"); // JPEG - p = stbi__get8(s); - if(p != 8) return stbi__err("only 8-bit", "JPEG format not supported: 8-bit only"); // JPEG baseline - s->img_y = stbi__get16be(s); - if(s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG - s->img_x = stbi__get16be(s); - if(s->img_x == 0) return stbi__err("0 width", "Corrupt JPEG"); // JPEG requires - if(s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); - if(s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); - c = stbi__get8(s); - if(c != 3 && c != 1 && c != 4) return stbi__err("bad component count", "Corrupt JPEG"); - s->img_n = c; - for(i = 0; i < c; ++i) { - z->img_comp[i].data = NULL; - z->img_comp[i].linebuf = NULL; - } +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } - if(Lf != 8 + 3 * s->img_n) return stbi__err("bad SOF len", "Corrupt JPEG"); + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); - z->rgb = 0; - for(i = 0; i < s->img_n; ++i) { - static const unsigned char rgb[3] = {'R', 'G', 'B'}; - z->img_comp[i].id = stbi__get8(s); - if(s->img_n == 3 && z->img_comp[i].id == rgb[i]) - ++z->rgb; - q = stbi__get8(s); - z->img_comp[i].h = (q >> 4); - if(!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H", "Corrupt JPEG"); - z->img_comp[i].v = q & 15; - if(!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V", "Corrupt JPEG"); - z->img_comp[i].tq = stbi__get8(s); - if(z->img_comp[i].tq > 3) return stbi__err("bad TQ", "Corrupt JPEG"); - } + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } - if(scan != STBI__SCAN_load) return 1; + if (scan != STBI__SCAN_load) return 1; - if(!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); - for(i = 0; i < s->img_n; ++i) { - if(z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; - if(z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; - } + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } - // check that plane subsampling factors are integer ratios; our resamplers can't deal with fractional ratios - // and I've never seen a non-corrupted JPEG file actually use them - for(i = 0; i < s->img_n; ++i) { - if(h_max % z->img_comp[i].h != 0) return stbi__err("bad H", "Corrupt JPEG"); - if(v_max % z->img_comp[i].v != 0) return stbi__err("bad V", "Corrupt JPEG"); - } + // check that plane subsampling factors are integer ratios; our resamplers can't deal with fractional ratios + // and I've never seen a non-corrupted JPEG file actually use them + for (i=0; i < s->img_n; ++i) { + if (h_max % z->img_comp[i].h != 0) return stbi__err("bad H","Corrupt JPEG"); + if (v_max % z->img_comp[i].v != 0) return stbi__err("bad V","Corrupt JPEG"); + } - // compute interleaved mcu info - z->img_h_max = h_max; - z->img_v_max = v_max; - z->img_mcu_w = h_max * 8; - z->img_mcu_h = v_max * 8; - // these sizes can't be more than 17 bits - z->img_mcu_x = (s->img_x + z->img_mcu_w - 1) / z->img_mcu_w; - z->img_mcu_y = (s->img_y + z->img_mcu_h - 1) / z->img_mcu_h; + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; - for(i = 0; i < s->img_n; ++i) { - // number of effective pixels (e.g. for non-interleaved MCU) - z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max - 1) / h_max; - z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max - 1) / v_max; - // to simplify generation, we'll allocate enough memory to decode - // the bogus oversized data from using interleaved MCUs and their - // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't - // discard the extra data until colorspace conversion - // - // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) - // so these muls can't overflow with 32-bit ints (which we require) - z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; - z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; - z->img_comp[i].coeff = 0; - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].linebuf = NULL; - z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); - if(z->img_comp[i].raw_data == NULL) - return stbi__free_jpeg_components(z, i + 1, stbi__err("outofmem", "Out of memory")); - // align blocks for idct using mmx/sse - z->img_comp[i].data = (stbi_uc*)(((size_t)z->img_comp[i].raw_data + 15) & ~15); - if(z->progressive) { - // w2, h2 are multiples of 8 (see above) - z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; - z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; - z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); - if(z->img_comp[i].raw_coeff == NULL) - return stbi__free_jpeg_components(z, i + 1, stbi__err("outofmem", "Out of memory")); - z->img_comp[i].coeff = (short*)(((size_t)z->img_comp[i].raw_coeff + 15) & ~15); - } - } + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } - return 1; + return 1; } // use comparisons since in some cases we handle more than one case (e.g. SOF) -#define stbi__DNL(x) ((x) == 0xdc) -#define stbi__SOI(x) ((x) == 0xd8) -#define stbi__EOI(x) ((x) == 0xd9) -#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) -#define stbi__SOS(x) ((x) == 0xda) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) -#define stbi__SOF_progressive(x) ((x) == 0xc2) +#define stbi__SOF_progressive(x) ((x) == 0xc2) -static int stbi__decode_jpeg_header(stbi__jpeg* z, int scan) { - int m; - z->jfif = 0; - z->app14_color_transform = -1; // valid values are 0,1,2 - z->marker = STBI__MARKER_none; // initialize cached marker to empty - m = stbi__get_marker(z); - if(!stbi__SOI(m)) return stbi__err("no SOI", "Corrupt JPEG"); - if(scan == STBI__SCAN_type) return 1; - m = stbi__get_marker(z); - while(!stbi__SOF(m)) { - if(!stbi__process_marker(z, m)) return 0; - m = stbi__get_marker(z); - while(m == STBI__MARKER_none) { - // some files have extra padding after their blocks, so ok, we'll scan - if(stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); - m = stbi__get_marker(z); - } - } - z->progressive = stbi__SOF_progressive(m); - if(!stbi__process_frame_header(z, scan)) return 0; - return 1; +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; } -static stbi_uc stbi__skip_jpeg_junk_at_end(stbi__jpeg* j) { - // some JPEGs have junk at end, skip over it but if we find what looks - // like a valid marker, resume there - while(!stbi__at_eof(j->s)) { - stbi_uc x = stbi__get8(j->s); - while(x == 0xff) { // might be a marker - if(stbi__at_eof(j->s)) return STBI__MARKER_none; - x = stbi__get8(j->s); - if(x != 0x00 && x != 0xff) { - // not a stuffed zero or lead-in to another marker, looks - // like an actual marker, return it - return x; - } - // stuffed zero has x=0 now which ends the loop, meaning we go - // back to regular scan loop. - // repeated 0xff keeps trying to read the next byte of the marker. - } - } - return STBI__MARKER_none; +static stbi_uc stbi__skip_jpeg_junk_at_end(stbi__jpeg *j) +{ + // some JPEGs have junk at end, skip over it but if we find what looks + // like a valid marker, resume there + while (!stbi__at_eof(j->s)) { + stbi_uc x = stbi__get8(j->s); + while (x == 0xff) { // might be a marker + if (stbi__at_eof(j->s)) return STBI__MARKER_none; + x = stbi__get8(j->s); + if (x != 0x00 && x != 0xff) { + // not a stuffed zero or lead-in to another marker, looks + // like an actual marker, return it + return x; + } + // stuffed zero has x=0 now which ends the loop, meaning we go + // back to regular scan loop. + // repeated 0xff keeps trying to read the next byte of the marker. + } + } + return STBI__MARKER_none; } // decode image to YCbCr format -static int stbi__decode_jpeg_image(stbi__jpeg* j) { - int m; - for(m = 0; m < 4; m++) { - j->img_comp[m].raw_data = NULL; - j->img_comp[m].raw_coeff = NULL; - } - j->restart_interval = 0; - if(!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; - m = stbi__get_marker(j); - while(!stbi__EOI(m)) { - if(stbi__SOS(m)) { - if(!stbi__process_scan_header(j)) return 0; - if(!stbi__parse_entropy_coded_data(j)) return 0; - if(j->marker == STBI__MARKER_none) { - j->marker = stbi__skip_jpeg_junk_at_end(j); - // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 - } - m = stbi__get_marker(j); - if(STBI__RESTART(m)) - m = stbi__get_marker(j); - } else if(stbi__DNL(m)) { - int Ld = stbi__get16be(j->s); - stbi__uint32 NL = stbi__get16be(j->s); - if(Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); - if(NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); - m = stbi__get_marker(j); - } else { - if(!stbi__process_marker(j, m)) return 1; - m = stbi__get_marker(j); - } - } - if(j->progressive) - stbi__jpeg_finish(j); - return 1; +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + j->marker = stbi__skip_jpeg_junk_at_end(j); + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + m = stbi__get_marker(j); + if (STBI__RESTART(m)) + m = stbi__get_marker(j); + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + m = stbi__get_marker(j); + } else { + if (!stbi__process_marker(j, m)) return 1; + m = stbi__get_marker(j); + } + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; } // static jfif-centered resampling (across block boundaries) -typedef stbi_uc* (*resample_row_func)(stbi_uc* out, stbi_uc* in0, stbi_uc* in1, - int w, int hs); +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); -#define stbi__div4(x) ((stbi_uc)((x) >> 2)) +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) -static stbi_uc* resample_row_1(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - STBI_NOTUSED(out); - STBI_NOTUSED(in_far); - STBI_NOTUSED(w); - STBI_NOTUSED(hs); - return in_near; +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; } -static stbi_uc* stbi__resample_row_v_2(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - // need to generate two samples vertically for every one in input - int i; - STBI_NOTUSED(hs); - for(i = 0; i < w; ++i) - out[i] = stbi__div4(3 * in_near[i] + in_far[i] + 2); - return out; +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; } -static stbi_uc* stbi__resample_row_h_2(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - // need to generate two samples horizontally for every one in input - int i; - stbi_uc* input = in_near; +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; - if(w == 1) { - // if only one sample, can't do any interpolation - out[0] = out[1] = input[0]; - return out; - } + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } - out[0] = input[0]; - out[1] = stbi__div4(input[0] * 3 + input[1] + 2); - for(i = 1; i < w - 1; ++i) { - int n = 3 * input[i] + 2; - out[i * 2 + 0] = stbi__div4(n + input[i - 1]); - out[i * 2 + 1] = stbi__div4(n + input[i + 1]); - } - out[i * 2 + 0] = stbi__div4(input[w - 2] * 3 + input[w - 1] + 2); - out[i * 2 + 1] = input[w - 1]; + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; - STBI_NOTUSED(in_far); - STBI_NOTUSED(hs); + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); - return out; + return out; } -#define stbi__div16(x) ((stbi_uc)((x) >> 4)) +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) -static stbi_uc* stbi__resample_row_hv_2(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - // need to generate 2x2 samples for every one in input - int i, t0, t1; - if(w == 1) { - out[0] = out[1] = stbi__div4(3 * in_near[0] + in_far[0] + 2); - return out; - } +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } - t1 = 3 * in_near[0] + in_far[0]; - out[0] = stbi__div4(t1 + 2); - for(i = 1; i < w; ++i) { - t0 = t1; - t1 = 3 * in_near[i] + in_far[i]; - out[i * 2 - 1] = stbi__div16(3 * t0 + t1 + 8); - out[i * 2] = stbi__div16(3 * t1 + t0 + 8); - } - out[w * 2 - 1] = stbi__div4(t1 + 2); + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); - STBI_NOTUSED(hs); + STBI_NOTUSED(hs); - return out; + return out; } #if defined(STBI_SSE2) || defined(STBI_NEON) -static stbi_uc* stbi__resample_row_hv_2_simd(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - // need to generate 2x2 samples for every one in input - int i = 0, t0, t1; +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; - if(w == 1) { - out[0] = out[1] = stbi__div4(3 * in_near[0] + in_far[0] + 2); - return out; - } + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } - t1 = 3 * in_near[0] + in_far[0]; - // process groups of 8 pixels for as long as we can. - // note we can't handle the last pixel in a row in this loop - // because we need to handle the filter boundary conditions. - for(; i < ((w - 1) & ~7); i += 8) { + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { #if defined(STBI_SSE2) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - __m128i zero = _mm_setzero_si128(); - __m128i farb = _mm_loadl_epi64((__m128i*)(in_far + i)); - __m128i nearb = _mm_loadl_epi64((__m128i*)(in_near + i)); - __m128i farw = _mm_unpacklo_epi8(farb, zero); - __m128i nearw = _mm_unpacklo_epi8(nearb, zero); - __m128i diff = _mm_sub_epi16(farw, nearw); - __m128i nears = _mm_slli_epi16(nearw, 2); - __m128i curr = _mm_add_epi16(nears, diff); // current row + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - __m128i prv0 = _mm_slli_si128(curr, 2); - __m128i nxt0 = _mm_srli_si128(curr, 2); - __m128i prev = _mm_insert_epi16(prv0, t1, 0); - __m128i next = _mm_insert_epi16(nxt0, 3 * in_near[i + 8] + in_far[i + 8], 7); + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - __m128i bias = _mm_set1_epi16(8); - __m128i curs = _mm_slli_epi16(curr, 2); - __m128i prvd = _mm_sub_epi16(prev, curr); - __m128i nxtd = _mm_sub_epi16(next, curr); - __m128i curb = _mm_add_epi16(curs, bias); - __m128i even = _mm_add_epi16(prvd, curb); - __m128i odd = _mm_add_epi16(nxtd, curb); + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); - // interleave even and odd pixels, then undo scaling. - __m128i int0 = _mm_unpacklo_epi16(even, odd); - __m128i int1 = _mm_unpackhi_epi16(even, odd); - __m128i de0 = _mm_srli_epi16(int0, 4); - __m128i de1 = _mm_srli_epi16(int1, 4); + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); - // pack and write output - __m128i outv = _mm_packus_epi16(de0, de1); - _mm_storeu_si128((__m128i*)(out + i * 2), outv); + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); #elif defined(STBI_NEON) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - uint8x8_t farb = vld1_u8(in_far + i); - uint8x8_t nearb = vld1_u8(in_near + i); - int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); - int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); - int16x8_t curr = vaddq_s16(nears, diff); // current row + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - int16x8_t prv0 = vextq_s16(curr, curr, 7); - int16x8_t nxt0 = vextq_s16(curr, curr, 1); - int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); - int16x8_t next = vsetq_lane_s16(3 * in_near[i + 8] + in_far[i + 8], nxt0, 7); + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - int16x8_t curs = vshlq_n_s16(curr, 2); - int16x8_t prvd = vsubq_s16(prev, curr); - int16x8_t nxtd = vsubq_s16(next, curr); - int16x8_t even = vaddq_s16(curs, prvd); - int16x8_t odd = vaddq_s16(curs, nxtd); + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); - // undo scaling and round, then store with even/odd phases interleaved - uint8x8x2_t o; - o.val[0] = vqrshrun_n_s16(even, 4); - o.val[1] = vqrshrun_n_s16(odd, 4); - vst2_u8(out + i * 2, o); + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); #endif - // "previous" value for next iter - t1 = 3 * in_near[i + 7] + in_far[i + 7]; - } + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } - t0 = t1; - t1 = 3 * in_near[i] + in_far[i]; - out[i * 2] = stbi__div16(3 * t1 + t0 + 8); + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); - for(++i; i < w; ++i) { - t0 = t1; - t1 = 3 * in_near[i] + in_far[i]; - out[i * 2 - 1] = stbi__div16(3 * t0 + t1 + 8); - out[i * 2] = stbi__div16(3 * t1 + t0 + 8); - } - out[w * 2 - 1] = stbi__div4(t1 + 2); + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); - STBI_NOTUSED(hs); + STBI_NOTUSED(hs); - return out; + return out; } #endif -static stbi_uc* stbi__resample_row_generic(stbi_uc* out, stbi_uc* in_near, stbi_uc* in_far, int w, int hs) { - // resample with nearest-neighbor - int i, j; - STBI_NOTUSED(in_far); - for(i = 0; i < w; ++i) - for(j = 0; j < hs; ++j) - out[i * hs + j] = in_near[i]; - return out; +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; } // this is a reduced-precision calculation of YCbCr-to-RGB introduced // to make sure the code produces the same results in both SIMD and scalar -#define stbi__float2fixed(x) (((int)((x) * 4096.0f + 0.5f)) << 8) -static void stbi__YCbCr_to_RGB_row(stbi_uc* out, const stbi_uc* y, const stbi_uc* pcb, const stbi_uc* pcr, int count, int step) { - int i; - for(i = 0; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1 << 19); // rounding - int r, g, b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr * stbi__float2fixed(1.40200f); - g = y_fixed + (cr * -stbi__float2fixed(0.71414f)) + ((cb * -stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb * stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if((unsigned)r > 255) { - if(r < 0) r = 0; - else - r = 255; - } - if((unsigned)g > 255) { - if(g < 0) g = 0; - else - g = 255; - } - if((unsigned)b > 255) { - if(b < 0) b = 0; - else - b = 255; - } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } } #if defined(STBI_SSE2) || defined(STBI_NEON) -static void stbi__YCbCr_to_RGB_simd(stbi_uc* out, stbi_uc const* y, stbi_uc const* pcb, stbi_uc const* pcr, int count, int step) { - int i = 0; +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; #ifdef STBI_SSE2 - // step == 3 is pretty ugly on the final interleave, and i'm not convinced - // it's useful in practice (you wouldn't use it for textures, for example). - // so just accelerate step == 4 case. - if(step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - __m128i signflip = _mm_set1_epi8(-0x80); - __m128i cr_const0 = _mm_set1_epi16((short)(1.40200f * 4096.0f + 0.5f)); - __m128i cr_const1 = _mm_set1_epi16(-(short)(0.71414f * 4096.0f + 0.5f)); - __m128i cb_const0 = _mm_set1_epi16(-(short)(0.34414f * 4096.0f + 0.5f)); - __m128i cb_const1 = _mm_set1_epi16((short)(1.77200f * 4096.0f + 0.5f)); - __m128i y_bias = _mm_set1_epi8((char)(unsigned char)128); - __m128i xw = _mm_set1_epi16(255); // alpha channel + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel - for(; i + 7 < count; i += 8) { - // load - __m128i y_bytes = _mm_loadl_epi64((__m128i*)(y + i)); - __m128i cr_bytes = _mm_loadl_epi64((__m128i*)(pcr + i)); - __m128i cb_bytes = _mm_loadl_epi64((__m128i*)(pcb + i)); - __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 - __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 - // unpack to short (and left-shift cr, cb by 8) - __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); - __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); - __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); - // color transform - __m128i yws = _mm_srli_epi16(yw, 4); - __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); - __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); - __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); - __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); - __m128i rws = _mm_add_epi16(cr0, yws); - __m128i gwt = _mm_add_epi16(cb0, yws); - __m128i bws = _mm_add_epi16(yws, cb1); - __m128i gws = _mm_add_epi16(gwt, cr1); + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); - // descale - __m128i rw = _mm_srai_epi16(rws, 4); - __m128i bw = _mm_srai_epi16(bws, 4); - __m128i gw = _mm_srai_epi16(gws, 4); + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); - // back to byte, set up for transpose - __m128i brb = _mm_packus_epi16(rw, bw); - __m128i gxb = _mm_packus_epi16(gw, xw); + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); - // transpose to interleave channels - __m128i t0 = _mm_unpacklo_epi8(brb, gxb); - __m128i t1 = _mm_unpackhi_epi8(brb, gxb); - __m128i o0 = _mm_unpacklo_epi16(t0, t1); - __m128i o1 = _mm_unpackhi_epi16(t0, t1); + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); - // store - _mm_storeu_si128((__m128i*)(out + 0), o0); - _mm_storeu_si128((__m128i*)(out + 16), o1); - out += 32; - } - } + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } #endif #ifdef STBI_NEON - // in this version, step=3 support would be easy to add. but is there demand? - if(step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - uint8x8_t signflip = vdup_n_u8(0x80); - int16x8_t cr_const0 = vdupq_n_s16((short)(1.40200f * 4096.0f + 0.5f)); - int16x8_t cr_const1 = vdupq_n_s16(-(short)(0.71414f * 4096.0f + 0.5f)); - int16x8_t cb_const0 = vdupq_n_s16(-(short)(0.34414f * 4096.0f + 0.5f)); - int16x8_t cb_const1 = vdupq_n_s16((short)(1.77200f * 4096.0f + 0.5f)); + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); - for(; i + 7 < count; i += 8) { - // load - uint8x8_t y_bytes = vld1_u8(y + i); - uint8x8_t cr_bytes = vld1_u8(pcr + i); - uint8x8_t cb_bytes = vld1_u8(pcb + i); - int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); - int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); - // expand to s16 - int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); - int16x8_t crw = vshll_n_s8(cr_biased, 7); - int16x8_t cbw = vshll_n_s8(cb_biased, 7); + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); - // color transform - int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); - int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); - int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); - int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); - int16x8_t rws = vaddq_s16(yws, cr0); - int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); - int16x8_t bws = vaddq_s16(yws, cb1); + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); - // undo scaling, round, convert to byte - uint8x8x4_t o; - o.val[0] = vqrshrun_n_s16(rws, 4); - o.val[1] = vqrshrun_n_s16(gws, 4); - o.val[2] = vqrshrun_n_s16(bws, 4); - o.val[3] = vdup_n_u8(255); + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); - // store, interleaving r/g/b/a - vst4_u8(out, o); - out += 8 * 4; - } - } + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } #endif - for(; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1 << 19); // rounding - int r, g, b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr * stbi__float2fixed(1.40200f); - g = y_fixed + cr * -stbi__float2fixed(0.71414f) + ((cb * -stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb * stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if((unsigned)r > 255) { - if(r < 0) r = 0; - else - r = 255; - } - if((unsigned)g > 255) { - if(g < 0) g = 0; - else - g = 255; - } - if((unsigned)b > 255) { - if(b < 0) b = 0; - else - b = 255; - } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } } #endif // set up the kernels -static void stbi__setup_jpeg(stbi__jpeg* j) { - j->idct_block_kernel = stbi__idct_block; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; #ifdef STBI_SSE2 - if(stbi__sse2_available()) { - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; - } + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } #endif #ifdef STBI_NEON - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; #endif } // clean up the temporary component buffers -static void stbi__cleanup_jpeg(stbi__jpeg* j) { - stbi__free_jpeg_components(j, j->s->img_n, 0); +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); } typedef struct { - resample_row_func resample; - stbi_uc * line0, *line1; - int hs, vs; // expansion factor in each axis - int w_lores; // horizontal pixels pre-expansion - int ystep; // how far through vertical expansion we are - int ypos; // which pre-expansion row we're on + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on } stbi__resample; // fast 0..255 * 0..255 => 0..255 rounded multiplication -static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) { - unsigned int t = x * y + 128; - return (stbi_uc)((t + (t >> 8)) >> 8); +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); } -static stbi_uc* load_jpeg_image(stbi__jpeg* z, int* out_x, int* out_y, int* comp, int req_comp) { - int n, decode_n, is_rgb; - z->s->img_n = 0; // make stbi__cleanup_jpeg safe +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe - // validate req_comp - if(req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - // load a jpeg image from whichever source, but leave in YCbCr format - if(!stbi__decode_jpeg_image(z)) { - stbi__cleanup_jpeg(z); - return NULL; - } + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } - // determine actual number of components to generate - n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 - : 1; + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; - is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); - if(z->s->img_n == 3 && n < 3 && !is_rgb) - decode_n = 1; - else - decode_n = z->s->img_n; + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; - // nothing to do if no components requested; check this now to avoid - // accessing uninitialized coutput[0] later - if(decode_n <= 0) { - stbi__cleanup_jpeg(z); - return NULL; - } + // nothing to do if no components requested; check this now to avoid + // accessing uninitialized coutput[0] later + if (decode_n <= 0) { stbi__cleanup_jpeg(z); return NULL; } - // resample and color-convert - { - int k; - unsigned int i, j; - stbi_uc* output; - stbi_uc* coutput[4] = {NULL, NULL, NULL, NULL}; + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; - stbi__resample res_comp[4]; + stbi__resample res_comp[4]; - for(k = 0; k < decode_n; ++k) { - stbi__resample* r = &res_comp[k]; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; - // allocate line buffer big enough for upsampling off the edges - // with upsample factor of 4 - z->img_comp[k].linebuf = (stbi_uc*)stbi__malloc(z->s->img_x + 3); - if(!z->img_comp[k].linebuf) { - stbi__cleanup_jpeg(z); - return stbi__errpuc("outofmem", "Out of memory"); - } + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - r->hs = z->img_h_max / z->img_comp[k].h; - r->vs = z->img_v_max / z->img_comp[k].v; - r->ystep = r->vs >> 1; - r->w_lores = (z->s->img_x + r->hs - 1) / r->hs; - r->ypos = 0; - r->line0 = r->line1 = z->img_comp[k].data; + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; - if(r->hs == 1 && r->vs == 1) r->resample = resample_row_1; - else if(r->hs == 1 && r->vs == 2) - r->resample = stbi__resample_row_v_2; - else if(r->hs == 2 && r->vs == 1) - r->resample = stbi__resample_row_h_2; - else if(r->hs == 2 && r->vs == 2) - r->resample = z->resample_row_hv_2_kernel; - else - r->resample = stbi__resample_row_generic; - } + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } - // can't error after this so, this is safe - output = (stbi_uc*)stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); - if(!output) { - stbi__cleanup_jpeg(z); - return stbi__errpuc("outofmem", "Out of memory"); - } + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - // now go ahead and resample - for(j = 0; j < z->s->img_y; ++j) { - stbi_uc* out = output + n * z->s->img_x * j; - for(k = 0; k < decode_n; ++k) { - stbi__resample* r = &res_comp[k]; - int y_bot = r->ystep >= (r->vs >> 1); - coutput[k] = r->resample(z->img_comp[k].linebuf, - y_bot ? r->line1 : r->line0, - y_bot ? r->line0 : r->line1, - r->w_lores, r->hs); - if(++r->ystep >= r->vs) { - r->ystep = 0; - r->line0 = r->line1; - if(++r->ypos < z->img_comp[k].y) - r->line1 += z->img_comp[k].w2; - } - } - if(n >= 3) { - stbi_uc* y = coutput[0]; - if(z->s->img_n == 3) { - if(is_rgb) { - for(i = 0; i < z->s->img_x; ++i) { - out[0] = y[i]; - out[1] = coutput[1][i]; - out[2] = coutput[2][i]; - out[3] = 255; - out += n; - } - } else { - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else if(z->s->img_n == 4) { - if(z->app14_color_transform == 0) { // CMYK - for(i = 0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(coutput[0][i], m); - out[1] = stbi__blinn_8x8(coutput[1][i], m); - out[2] = stbi__blinn_8x8(coutput[2][i], m); - out[3] = 255; - out += n; - } - } else if(z->app14_color_transform == 2) { // YCCK - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - for(i = 0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(255 - out[0], m); - out[1] = stbi__blinn_8x8(255 - out[1], m); - out[2] = stbi__blinn_8x8(255 - out[2], m); - out += n; - } - } else { // YCbCr + alpha? Ignore the fourth channel for now - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else - for(i = 0; i < z->s->img_x; ++i) { - out[0] = out[1] = out[2] = y[i]; - out[3] = 255; // not used if n==3 - out += n; - } - } else { - if(is_rgb) { - if(n == 1) - for(i = 0; i < z->s->img_x; ++i) - *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - else { - for(i = 0; i < z->s->img_x; ++i, out += 2) { - out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - out[1] = 255; - } - } - } else if(z->s->img_n == 4 && z->app14_color_transform == 0) { - for(i = 0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); - stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); - stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); - out[0] = stbi__compute_y(r, g, b); - out[1] = 255; - out += n; - } - } else if(z->s->img_n == 4 && z->app14_color_transform == 2) { - for(i = 0; i < z->s->img_x; ++i) { - out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); - out[1] = 255; - out += n; - } - } else { - stbi_uc* y = coutput[0]; - if(n == 1) - for(i = 0; i < z->s->img_x; ++i) out[i] = y[i]; - else - for(i = 0; i < z->s->img_x; ++i) { - *out++ = y[i]; - *out++ = 255; - } - } - } - } - stbi__cleanup_jpeg(z); - *out_x = z->s->img_x; - *out_y = z->s->img_y; - if(comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output - return output; - } + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } } -static void* stbi__jpeg_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - unsigned char* result; - stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); - if(!j) return stbi__errpuc("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - STBI_NOTUSED(ri); - j->s = s; - stbi__setup_jpeg(j); - result = load_jpeg_image(j, x, y, comp, req_comp); - STBI_FREE(j); - return result; +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + if (!j) return stbi__errpuc("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; } -static int stbi__jpeg_test(stbi__context* s) { - int r; - stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); - if(!j) return stbi__err("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - j->s = s; - stbi__setup_jpeg(j); - r = stbi__decode_jpeg_header(j, STBI__SCAN_type); - stbi__rewind(s); - STBI_FREE(j); - return r; +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + if (!j) return stbi__err("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; } -static int stbi__jpeg_info_raw(stbi__jpeg* j, int* x, int* y, int* comp) { - if(!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { - stbi__rewind(j->s); - return 0; - } - if(x) *x = j->s->img_x; - if(y) *y = j->s->img_y; - if(comp) *comp = j->s->img_n >= 3 ? 3 : 1; - return 1; +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; } -static int stbi__jpeg_info(stbi__context* s, int* x, int* y, int* comp) { - int result; - stbi__jpeg* j = (stbi__jpeg*)(stbi__malloc(sizeof(stbi__jpeg))); - if(!j) return stbi__err("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - j->s = s; - result = stbi__jpeg_info_raw(j, x, y, comp); - STBI_FREE(j); - return result; +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + if (!j) return stbi__err("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; } #endif @@ -4185,81 +4088,84 @@ static int stbi__jpeg_info(stbi__context* s, int* x, int* y, int* comp) { #ifndef STBI_NO_ZLIB // fast-way is faster to check than jpeg huffman, but slow way is slower -#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables -#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) #define STBI__ZNSYMS 288 // number of symbols in literal/length alphabet // zlib-style huffman encoding // (jpegs packs from left, zlib from right, so can't share code) typedef struct { - stbi__uint16 fast[1 << STBI__ZFAST_BITS]; - stbi__uint16 firstcode[16]; - int maxcode[17]; - stbi__uint16 firstsymbol[16]; - stbi_uc size[STBI__ZNSYMS]; - stbi__uint16 value[STBI__ZNSYMS]; + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[STBI__ZNSYMS]; + stbi__uint16 value[STBI__ZNSYMS]; } stbi__zhuffman; -stbi_inline static int stbi__bitreverse16(int n) { - n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); - n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); - n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); - n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); - return n; +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; } -stbi_inline static int stbi__bit_reverse(int v, int bits) { - STBI_ASSERT(bits <= 16); - // to bit reverse n bits, reverse 16 and shift - // e.g. 11 bits, bit reverse and shift away 5 - return stbi__bitreverse16(v) >> (16 - bits); +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); } -static int stbi__zbuild_huffman(stbi__zhuffman* z, const stbi_uc* sizelist, int num) { - int i, k = 0; - int code, next_code[16], sizes[17]; +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; - // DEFLATE spec for generating codes - memset(sizes, 0, sizeof(sizes)); - memset(z->fast, 0, sizeof(z->fast)); - for(i = 0; i < num; ++i) - ++sizes[sizelist[i]]; - sizes[0] = 0; - for(i = 1; i < 16; ++i) - if(sizes[i] > (1 << i)) - return stbi__err("bad sizes", "Corrupt PNG"); - code = 0; - for(i = 1; i < 16; ++i) { - next_code[i] = code; - z->firstcode[i] = (stbi__uint16)code; - z->firstsymbol[i] = (stbi__uint16)k; - code = (code + sizes[i]); - if(sizes[i]) - if(code - 1 >= (1 << i)) return stbi__err("bad codelengths", "Corrupt PNG"); - z->maxcode[i] = code << (16 - i); // preshift for inner loop - code <<= 1; - k += sizes[i]; - } - z->maxcode[16] = 0x10000; // sentinel - for(i = 0; i < num; ++i) { - int s = sizelist[i]; - if(s) { - int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; - stbi__uint16 fastv = (stbi__uint16)((s << 9) | i); - z->size[c] = (stbi_uc)s; - z->value[c] = (stbi__uint16)i; - if(s <= STBI__ZFAST_BITS) { - int j = stbi__bit_reverse(next_code[s], s); - while(j < (1 << STBI__ZFAST_BITS)) { - z->fast[j] = fastv; - j += (1 << s); - } - } - ++next_code[s]; - } - } - return 1; + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; } // zlib-from-memory implementation for PNG reading @@ -4270,289 +4176,295 @@ static int stbi__zbuild_huffman(stbi__zhuffman* z, const stbi_uc* sizelist, int typedef struct { - stbi_uc * zbuffer, *zbuffer_end; - int num_bits; - int hit_zeof_once; - stbi__uint32 code_buffer; + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + int hit_zeof_once; + stbi__uint32 code_buffer; - char* zout; - char* zout_start; - char* zout_end; - int z_expandable; + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; - stbi__zhuffman z_length, z_distance; + stbi__zhuffman z_length, z_distance; } stbi__zbuf; -stbi_inline static int stbi__zeof(stbi__zbuf* z) { - return (z->zbuffer >= z->zbuffer_end); -} - -stbi_inline static stbi_uc stbi__zget8(stbi__zbuf* z) { - return stbi__zeof(z) ? 0 : *z->zbuffer++; -} - -static void stbi__fill_bits(stbi__zbuf* z) { - do { - if(z->code_buffer >= (1U << z->num_bits)) { - z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ - return; - } - z->code_buffer |= (unsigned int)stbi__zget8(z) << z->num_bits; - z->num_bits += 8; - } while(z->num_bits <= 24); -} - -stbi_inline static unsigned int stbi__zreceive(stbi__zbuf* z, int n) { - unsigned int k; - if(z->num_bits < n) stbi__fill_bits(z); - k = z->code_buffer & ((1 << n) - 1); - z->code_buffer >>= n; - z->num_bits -= n; - return k; -} - -static int stbi__zhuffman_decode_slowpath(stbi__zbuf* a, stbi__zhuffman* z) { - int b, s, k; - // not resolved by fast table, so compute it the slow way - // use jpeg approach, which requires MSbits at top - k = stbi__bit_reverse(a->code_buffer, 16); - for(s = STBI__ZFAST_BITS + 1;; ++s) - if(k < z->maxcode[s]) - break; - if(s >= 16) return -1; // invalid code! - // code size is s, so: - b = (k >> (16 - s)) - z->firstcode[s] + z->firstsymbol[s]; - if(b >= STBI__ZNSYMS) return -1; // some data was corrupt somewhere! - if(z->size[b] != s) return -1; // was originally an assert, but report failure instead. - a->code_buffer >>= s; - a->num_bits -= s; - return z->value[b]; -} - -stbi_inline static int stbi__zhuffman_decode(stbi__zbuf* a, stbi__zhuffman* z) { - int b, s; - if(a->num_bits < 16) { - if(stbi__zeof(a)) { - if(!a->hit_zeof_once) { - // This is the first time we hit eof, insert 16 extra padding btis - // to allow us to keep going; if we actually consume any of them - // though, that is invalid data. This is caught later. - a->hit_zeof_once = 1; - a->num_bits += 16; // add 16 implicit zero bits - } else { - // We already inserted our extra 16 padding bits and are again - // out, this stream is actually prematurely terminated. - return -1; - } - } else { - stbi__fill_bits(a); - } - } - b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; - if(b) { - s = b >> 9; - a->code_buffer >>= s; - a->num_bits -= s; - return b & 511; - } - return stbi__zhuffman_decode_slowpath(a, z); -} - -static int stbi__zexpand(stbi__zbuf* z, char* zout, int n) // need to make room for n bytes +stbi_inline static int stbi__zeof(stbi__zbuf *z) { - char* q; - unsigned int cur, limit, old_limit; - z->zout = zout; - if(!z->z_expandable) return stbi__err("output buffer limit", "Corrupt PNG"); - cur = (unsigned int)(z->zout - z->zout_start); - limit = old_limit = (unsigned)(z->zout_end - z->zout_start); - if(UINT_MAX - cur < (unsigned)n) return stbi__err("outofmem", "Out of memory"); - while(cur + n > limit) { - if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); - limit *= 2; - } - q = (char*)STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); - STBI_NOTUSED(old_limit); - if(q == NULL) return stbi__err("outofmem", "Out of memory"); - z->zout_start = q; - z->zout = q + cur; - z->zout_end = q + limit; - return 1; + return (z->zbuffer >= z->zbuffer_end); +} + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + return stbi__zeof(z) ? 0 : *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + if (z->code_buffer >= (1U << z->num_bits)) { + z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ + return; + } + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s >= 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + if (b >= STBI__ZNSYMS) return -1; // some data was corrupt somewhere! + if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) { + if (stbi__zeof(a)) { + if (!a->hit_zeof_once) { + // This is the first time we hit eof, insert 16 extra padding btis + // to allow us to keep going; if we actually consume any of them + // though, that is invalid data. This is caught later. + a->hit_zeof_once = 1; + a->num_bits += 16; // add 16 implicit zero bits + } else { + // We already inserted our extra 16 padding bits and are again + // out, this stream is actually prematurely terminated. + return -1; + } + } else { + stbi__fill_bits(a); + } + } + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + unsigned int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (unsigned int) (z->zout - z->zout_start); + limit = old_limit = (unsigned) (z->zout_end - z->zout_start); + if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); + while (cur + n > limit) { + if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); + limit *= 2; + } + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; } static const int stbi__zlength_base[31] = { - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, - 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, - 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; -static const int stbi__zlength_extra[31] = - {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 0, 0}; +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; -static const int stbi__zdist_base[32] = {1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0}; +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; static const int stbi__zdist_extra[32] = - {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; -static int stbi__parse_huffman_block(stbi__zbuf* a) { - char* zout = a->zout; - for(;;) { - int z = stbi__zhuffman_decode(a, &a->z_length); - if(z < 256) { - if(z < 0) return stbi__err("bad huffman code", "Corrupt PNG"); // error in huffman codes - if(zout >= a->zout_end) { - if(!stbi__zexpand(a, zout, 1)) return 0; - zout = a->zout; - } - *zout++ = (char)z; - } else { - stbi_uc* p; - int len, dist; - if(z == 256) { - a->zout = zout; - if(a->hit_zeof_once && a->num_bits < 16) { - // The first time we hit zeof, we inserted 16 extra zero bits into our bit - // buffer so the decoder can just do its speculative decoding. But if we - // actually consumed any of those bits (which is the case when num_bits < 16), - // the stream actually read past the end so it is malformed. - return stbi__err("unexpected end", "Corrupt PNG"); - } - return 1; - } - if(z >= 286) return stbi__err("bad huffman code", "Corrupt PNG"); // per DEFLATE, length codes 286 and 287 must not appear in compressed data - z -= 257; - len = stbi__zlength_base[z]; - if(stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); - z = stbi__zhuffman_decode(a, &a->z_distance); - if(z < 0 || z >= 30) return stbi__err("bad huffman code", "Corrupt PNG"); // per DEFLATE, distance codes 30 and 31 must not appear in compressed data - dist = stbi__zdist_base[z]; - if(stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); - if(zout - a->zout_start < dist) return stbi__err("bad dist", "Corrupt PNG"); - if(len > a->zout_end - zout) { - if(!stbi__zexpand(a, zout, len)) return 0; - zout = a->zout; - } - p = (stbi_uc*)(zout - dist); - if(dist == 1) { // run of one byte; common in images. - stbi_uc v = *p; - if(len) { - do *zout++ = v; - while(--len); - } - } else { - if(len) { - do *zout++ = *p++; - while(--len); - } - } - } - } +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + if (a->hit_zeof_once && a->num_bits < 16) { + // The first time we hit zeof, we inserted 16 extra zero bits into our bit + // buffer so the decoder can just do its speculative decoding. But if we + // actually consumed any of those bits (which is the case when num_bits < 16), + // the stream actually read past the end so it is malformed. + return stbi__err("unexpected end","Corrupt PNG"); + } + return 1; + } + if (z >= 286) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, length codes 286 and 287 must not appear in compressed data + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0 || z >= 30) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, distance codes 30 and 31 must not appear in compressed data + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (len > a->zout_end - zout) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } } -static int stbi__compute_huffman_codes(stbi__zbuf* a) { - static const stbi_uc length_dezigzag[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - stbi__zhuffman z_codelength; - stbi_uc lencodes[286 + 32 + 137]; // padding for maximum single op - stbi_uc codelength_sizes[19]; - int i, n; +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; - int hlit = stbi__zreceive(a, 5) + 257; - int hdist = stbi__zreceive(a, 5) + 1; - int hclen = stbi__zreceive(a, 4) + 4; - int ntot = hlit + hdist; + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; - memset(codelength_sizes, 0, sizeof(codelength_sizes)); - for(i = 0; i < hclen; ++i) { - int s = stbi__zreceive(a, 3); - codelength_sizes[length_dezigzag[i]] = (stbi_uc)s; - } - if(!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; - n = 0; - while(n < ntot) { - int c = stbi__zhuffman_decode(a, &z_codelength); - if(c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); - if(c < 16) - lencodes[n++] = (stbi_uc)c; - else { - stbi_uc fill = 0; - if(c == 16) { - c = stbi__zreceive(a, 2) + 3; - if(n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); - fill = lencodes[n - 1]; - } else if(c == 17) { - c = stbi__zreceive(a, 3) + 3; - } else if(c == 18) { - c = stbi__zreceive(a, 7) + 11; - } else { - return stbi__err("bad codelengths", "Corrupt PNG"); - } - if(ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); - memset(lencodes + n, fill, c); - n += c; - } - } - if(n != ntot) return stbi__err("bad codelengths", "Corrupt PNG"); - if(!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; - if(!stbi__zbuild_huffman(&a->z_distance, lencodes + hlit, hdist)) return 0; - return 1; + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) { + c = stbi__zreceive(a,3)+3; + } else if (c == 18) { + c = stbi__zreceive(a,7)+11; + } else { + return stbi__err("bad codelengths", "Corrupt PNG"); + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; } -static int stbi__parse_uncompressed_block(stbi__zbuf* a) { - stbi_uc header[4]; - int len, nlen, k; - if(a->num_bits & 7) - stbi__zreceive(a, a->num_bits & 7); // discard - // drain the bit-packed data into header - k = 0; - while(a->num_bits > 0) { - header[k++] = (stbi_uc)(a->code_buffer & 255); // suppress MSVC run-time check - a->code_buffer >>= 8; - a->num_bits -= 8; - } - if(a->num_bits < 0) return stbi__err("zlib corrupt", "Corrupt PNG"); - // now fill header the normal way - while(k < 4) - header[k++] = stbi__zget8(a); - len = header[1] * 256 + header[0]; - nlen = header[3] * 256 + header[2]; - if(nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt", "Corrupt PNG"); - if(a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer", "Corrupt PNG"); - if(a->zout + len > a->zout_end) - if(!stbi__zexpand(a, a->zout, len)) return 0; - memcpy(a->zout, a->zbuffer, len); - a->zbuffer += len; - a->zout += len; - return 1; +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; } -static int stbi__parse_zlib_header(stbi__zbuf* a) { - int cmf = stbi__zget8(a); - int cm = cmf & 15; - /* int cinfo = cmf >> 4; */ - int flg = stbi__zget8(a); - if(stbi__zeof(a)) return stbi__err("bad zlib header", "Corrupt PNG"); // zlib spec - if((cmf * 256 + flg) % 31 != 0) return stbi__err("bad zlib header", "Corrupt PNG"); // zlib spec - if(flg & 32) return stbi__err("no preset dict", "Corrupt PNG"); // preset dictionary not allowed in png - if(cm != 8) return stbi__err("bad compression", "Corrupt PNG"); // DEFLATE required for png - // window = 1 << (8 + cinfo)... but who cares, we fully buffer output - return 1; +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; } static const stbi_uc stbi__zdefault_length[STBI__ZNSYMS] = - { - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, - 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, - 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, - 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8}; +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; static const stbi_uc stbi__zdefault_distance[32] = - { - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5}; +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; /* Init algorithm: { @@ -4566,110 +4478,118 @@ Init algorithm: } */ -static int stbi__parse_zlib(stbi__zbuf* a, int parse_header) { - int final, type; - if(parse_header) - if(!stbi__parse_zlib_header(a)) return 0; - a->num_bits = 0; - a->code_buffer = 0; - a->hit_zeof_once = 0; - do { - final = stbi__zreceive(a, 1); - type = stbi__zreceive(a, 2); - if(type == 0) { - if(!stbi__parse_uncompressed_block(a)) return 0; - } else if(type == 3) { - return 0; - } else { - if(type == 1) { - // use fixed code lengths - if(!stbi__zbuild_huffman(&a->z_length, stbi__zdefault_length, STBI__ZNSYMS)) return 0; - if(!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; - } else { - if(!stbi__compute_huffman_codes(a)) return 0; - } - if(!stbi__parse_huffman_block(a)) return 0; - } - } while(!final); - return 1; +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + a->hit_zeof_once = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , STBI__ZNSYMS)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; } -static int stbi__do_zlib(stbi__zbuf* a, char* obuf, int olen, int exp, int parse_header) { - a->zout_start = obuf; - a->zout = obuf; - a->zout_end = obuf + olen; - a->z_expandable = exp; +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; - return stbi__parse_zlib(a, parse_header); + return stbi__parse_zlib(a, parse_header); } -STBIDEF char* stbi_zlib_decode_malloc_guesssize(const char* buffer, int len, int initial_size, int* outlen) { - stbi__zbuf a; - char* p = (char*)stbi__malloc(initial_size); - if(p == NULL) return NULL; - a.zbuffer = (stbi_uc*)buffer; - a.zbuffer_end = (stbi_uc*)buffer + len; - if(stbi__do_zlib(&a, p, initial_size, 1, 1)) { - if(outlen) *outlen = (int)(a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } } -STBIDEF char* stbi_zlib_decode_malloc(char const* buffer, int len, int* outlen) { - return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); } -STBIDEF char* stbi_zlib_decode_malloc_guesssize_headerflag(const char* buffer, int len, int initial_size, int* outlen, int parse_header) { - stbi__zbuf a; - char* p = (char*)stbi__malloc(initial_size); - if(p == NULL) return NULL; - a.zbuffer = (stbi_uc*)buffer; - a.zbuffer_end = (stbi_uc*)buffer + len; - if(stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { - if(outlen) *outlen = (int)(a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } } -STBIDEF int stbi_zlib_decode_buffer(char* obuffer, int olen, char const* ibuffer, int ilen) { - stbi__zbuf a; - a.zbuffer = (stbi_uc*)ibuffer; - a.zbuffer_end = (stbi_uc*)ibuffer + ilen; - if(stbi__do_zlib(&a, obuffer, olen, 0, 1)) - return (int)(a.zout - a.zout_start); - else - return -1; +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; } -STBIDEF char* stbi_zlib_decode_noheader_malloc(char const* buffer, int len, int* outlen) { - stbi__zbuf a; - char* p = (char*)stbi__malloc(16384); - if(p == NULL) return NULL; - a.zbuffer = (stbi_uc*)buffer; - a.zbuffer_end = (stbi_uc*)buffer + len; - if(stbi__do_zlib(&a, p, 16384, 1, 0)) { - if(outlen) *outlen = (int)(a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } } -STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const char* ibuffer, int ilen) { - stbi__zbuf a; - a.zbuffer = (stbi_uc*)ibuffer; - a.zbuffer_end = (stbi_uc*)ibuffer + ilen; - if(stbi__do_zlib(&a, obuffer, olen, 0, 0)) - return (int)(a.zout - a.zout_start); - else - return -1; +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; } #endif @@ -4686,1171 +4606,1129 @@ STBIDEF int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const char #ifndef STBI_NO_PNG typedef struct { - stbi__uint32 length; - stbi__uint32 type; + stbi__uint32 length; + stbi__uint32 type; } stbi__pngchunk; -static stbi__pngchunk stbi__get_chunk_header(stbi__context* s) { - stbi__pngchunk c; - c.length = stbi__get32be(s); - c.type = stbi__get32be(s); - return c; +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; } -static int stbi__check_png_header(stbi__context* s) { - static const stbi_uc png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - int i; - for(i = 0; i < 8; ++i) - if(stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig", "Not a PNG"); - return 1; +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; } typedef struct { - stbi__context* s; - stbi_uc * idata, *expanded, *out; - int depth; + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; } stbi__png; + enum { - STBI__F_none = 0, - STBI__F_sub = 1, - STBI__F_up = 2, - STBI__F_avg = 3, - STBI__F_paeth = 4, - // synthetic filter used for first scanline to avoid needing a dummy row of 0s - STBI__F_avg_first + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filter used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first }; static stbi_uc first_row_filter[5] = - { - STBI__F_none, - STBI__F_sub, - STBI__F_none, - STBI__F_avg_first, - STBI__F_sub // Paeth with b=c=0 turns out to be equivalent to sub +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_sub // Paeth with b=c=0 turns out to be equivalent to sub }; -static int stbi__paeth(int a, int b, int c) { - // This formulation looks very different from the reference in the PNG spec, but is - // actually equivalent and has favorable data dependencies and admits straightforward - // generation of branch-free code, which helps performance significantly. - int thresh = c * 3 - (a + b); - int lo = a < b ? a : b; - int hi = a < b ? b : a; - int t0 = (hi <= thresh) ? lo : c; - int t1 = (thresh <= lo) ? hi : t0; - return t1; +static int stbi__paeth(int a, int b, int c) +{ + // This formulation looks very different from the reference in the PNG spec, but is + // actually equivalent and has favorable data dependencies and admits straightforward + // generation of branch-free code, which helps performance significantly. + int thresh = c*3 - (a + b); + int lo = a < b ? a : b; + int hi = a < b ? b : a; + int t0 = (hi <= thresh) ? lo : c; + int t1 = (thresh <= lo) ? hi : t0; + return t1; } -static const stbi_uc stbi__depth_scale_table[9] = {0, 0xff, 0x55, 0, 0x11, 0, 0, 0, 0x01}; +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; // adds an extra all-255 alpha channel // dest == src is legal // img_n must be 1 or 3 -static void stbi__create_png_alpha_expand8(stbi_uc* dest, stbi_uc* src, stbi__uint32 x, int img_n) { - int i; - // must process data backwards since we allow dest==src - if(img_n == 1) { - for(i = x - 1; i >= 0; --i) { - dest[i * 2 + 1] = 255; - dest[i * 2 + 0] = src[i]; - } - } else { - STBI_ASSERT(img_n == 3); - for(i = x - 1; i >= 0; --i) { - dest[i * 4 + 3] = 255; - dest[i * 4 + 2] = src[i * 3 + 2]; - dest[i * 4 + 1] = src[i * 3 + 1]; - dest[i * 4 + 0] = src[i * 3 + 0]; - } - } +static void stbi__create_png_alpha_expand8(stbi_uc *dest, stbi_uc *src, stbi__uint32 x, int img_n) +{ + int i; + // must process data backwards since we allow dest==src + if (img_n == 1) { + for (i=x-1; i >= 0; --i) { + dest[i*2+1] = 255; + dest[i*2+0] = src[i]; + } + } else { + STBI_ASSERT(img_n == 3); + for (i=x-1; i >= 0; --i) { + dest[i*4+3] = 255; + dest[i*4+2] = src[i*3+2]; + dest[i*4+1] = src[i*3+1]; + dest[i*4+0] = src[i*3+0]; + } + } } // create the png data from post-deflated data -static int stbi__create_png_image_raw(stbi__png* a, stbi_uc* raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) { - int bytes = (depth == 16 ? 2 : 1); - stbi__context* s = a->s; - stbi__uint32 i, j, stride = x * out_n * bytes; - stbi__uint32 img_len, img_width_bytes; - stbi_uc* filter_buf; - int all_ok = 1; - int k; - int img_n = s->img_n; // copy it into a local for later +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16 ? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + stbi_uc *filter_buf; + int all_ok = 1; + int k; + int img_n = s->img_n; // copy it into a local for later - int output_bytes = out_n * bytes; - int filter_bytes = img_n * bytes; - int width = x; + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; - STBI_ASSERT(out_n == s->img_n || out_n == s->img_n + 1); - a->out = (stbi_uc*)stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into - if(!a->out) return stbi__err("outofmem", "Out of memory"); + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); - // note: error exits here don't need to clean up a->out individually, - // stbi__do_png always does on error. - if(!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); - img_width_bytes = (((img_n * x * depth) + 7) >> 3); - if(!stbi__mad2sizes_valid(img_width_bytes, y, img_width_bytes)) return stbi__err("too large", "Corrupt PNG"); - img_len = (img_width_bytes + 1) * y; + // note: error exits here don't need to clean up a->out individually, + // stbi__do_png always does on error. + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + if (!stbi__mad2sizes_valid(img_width_bytes, y, img_width_bytes)) return stbi__err("too large", "Corrupt PNG"); + img_len = (img_width_bytes + 1) * y; - // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, - // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), - // so just check for raw_len < img_len always. - if(raw_len < img_len) return stbi__err("not enough pixels", "Corrupt PNG"); + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); - // Allocate two scan lines worth of filter workspace buffer. - filter_buf = (stbi_uc*)stbi__malloc_mad2(img_width_bytes, 2, 0); - if(!filter_buf) return stbi__err("outofmem", "Out of memory"); + // Allocate two scan lines worth of filter workspace buffer. + filter_buf = (stbi_uc *) stbi__malloc_mad2(img_width_bytes, 2, 0); + if (!filter_buf) return stbi__err("outofmem", "Out of memory"); - // Filtering for low-bit-depth images - if(depth < 8) { - filter_bytes = 1; - width = img_width_bytes; - } + // Filtering for low-bit-depth images + if (depth < 8) { + filter_bytes = 1; + width = img_width_bytes; + } - for(j = 0; j < y; ++j) { - // cur/prior filter buffers alternate - stbi_uc* cur = filter_buf + (j & 1) * img_width_bytes; - stbi_uc* prior = filter_buf + (~j & 1) * img_width_bytes; - stbi_uc* dest = a->out + stride * j; - int nk = width * filter_bytes; - int filter = *raw++; + for (j=0; j < y; ++j) { + // cur/prior filter buffers alternate + stbi_uc *cur = filter_buf + (j & 1)*img_width_bytes; + stbi_uc *prior = filter_buf + (~j & 1)*img_width_bytes; + stbi_uc *dest = a->out + stride*j; + int nk = width * filter_bytes; + int filter = *raw++; - // check filter type - if(filter > 4) { - all_ok = stbi__err("invalid filter", "Corrupt PNG"); - break; - } + // check filter type + if (filter > 4) { + all_ok = stbi__err("invalid filter","Corrupt PNG"); + break; + } - // if first row, use special filter that doesn't sample previous row - if(j == 0) filter = first_row_filter[filter]; + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; - // perform actual filtering - switch(filter) { - case STBI__F_none: - memcpy(cur, raw, nk); - break; - case STBI__F_sub: - memcpy(cur, raw, filter_bytes); - for(k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + cur[k - filter_bytes]); - break; - case STBI__F_up: - for(k = 0; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + prior[k]); - break; - case STBI__F_avg: - for(k = 0; k < filter_bytes; ++k) - cur[k] = STBI__BYTECAST(raw[k] + (prior[k] >> 1)); - for(k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k - filter_bytes]) >> 1)); - break; - case STBI__F_paeth: - for(k = 0; k < filter_bytes; ++k) - cur[k] = STBI__BYTECAST(raw[k] + prior[k]); // prior[k] == stbi__paeth(0,prior[k],0) - for(k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k - filter_bytes], prior[k], prior[k - filter_bytes])); - break; - case STBI__F_avg_first: - memcpy(cur, raw, filter_bytes); - for(k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + (cur[k - filter_bytes] >> 1)); - break; - } + // perform actual filtering + switch (filter) { + case STBI__F_none: + memcpy(cur, raw, nk); + break; + case STBI__F_sub: + memcpy(cur, raw, filter_bytes); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); + break; + case STBI__F_up: + for (k = 0; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + prior[k]); + break; + case STBI__F_avg: + for (k = 0; k < filter_bytes; ++k) + cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); + break; + case STBI__F_paeth: + for (k = 0; k < filter_bytes; ++k) + cur[k] = STBI__BYTECAST(raw[k] + prior[k]); // prior[k] == stbi__paeth(0,prior[k],0) + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes], prior[k], prior[k-filter_bytes])); + break; + case STBI__F_avg_first: + memcpy(cur, raw, filter_bytes); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); + break; + } - raw += nk; + raw += nk; - // expand decoded bits in cur to dest, also adding an extra alpha channel if desired - if(depth < 8) { - stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range - stbi_uc* in = cur; - stbi_uc* out = dest; - stbi_uc inb = 0; - stbi__uint32 nsmp = x * img_n; + // expand decoded bits in cur to dest, also adding an extra alpha channel if desired + if (depth < 8) { + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + stbi_uc *in = cur; + stbi_uc *out = dest; + stbi_uc inb = 0; + stbi__uint32 nsmp = x*img_n; - // expand bits to bytes first - if(depth == 4) { - for(i = 0; i < nsmp; ++i) { - if((i & 1) == 0) inb = *in++; - *out++ = scale * (inb >> 4); - inb <<= 4; - } - } else if(depth == 2) { - for(i = 0; i < nsmp; ++i) { - if((i & 3) == 0) inb = *in++; - *out++ = scale * (inb >> 6); - inb <<= 2; - } - } else { - STBI_ASSERT(depth == 1); - for(i = 0; i < nsmp; ++i) { - if((i & 7) == 0) inb = *in++; - *out++ = scale * (inb >> 7); - inb <<= 1; - } - } + // expand bits to bytes first + if (depth == 4) { + for (i=0; i < nsmp; ++i) { + if ((i & 1) == 0) inb = *in++; + *out++ = scale * (inb >> 4); + inb <<= 4; + } + } else if (depth == 2) { + for (i=0; i < nsmp; ++i) { + if ((i & 3) == 0) inb = *in++; + *out++ = scale * (inb >> 6); + inb <<= 2; + } + } else { + STBI_ASSERT(depth == 1); + for (i=0; i < nsmp; ++i) { + if ((i & 7) == 0) inb = *in++; + *out++ = scale * (inb >> 7); + inb <<= 1; + } + } - // insert alpha=255 values if desired - if(img_n != out_n) - stbi__create_png_alpha_expand8(dest, dest, x, img_n); - } else if(depth == 8) { - if(img_n == out_n) - memcpy(dest, cur, x * img_n); - else - stbi__create_png_alpha_expand8(dest, cur, x, img_n); - } else if(depth == 16) { - // convert the image data from big-endian to platform-native - stbi__uint16* dest16 = (stbi__uint16*)dest; - stbi__uint32 nsmp = x * img_n; + // insert alpha=255 values if desired + if (img_n != out_n) + stbi__create_png_alpha_expand8(dest, dest, x, img_n); + } else if (depth == 8) { + if (img_n == out_n) + memcpy(dest, cur, x*img_n); + else + stbi__create_png_alpha_expand8(dest, cur, x, img_n); + } else if (depth == 16) { + // convert the image data from big-endian to platform-native + stbi__uint16 *dest16 = (stbi__uint16*)dest; + stbi__uint32 nsmp = x*img_n; - if(img_n == out_n) { - for(i = 0; i < nsmp; ++i, ++dest16, cur += 2) - *dest16 = (cur[0] << 8) | cur[1]; - } else { - STBI_ASSERT(img_n + 1 == out_n); - if(img_n == 1) { - for(i = 0; i < x; ++i, dest16 += 2, cur += 2) { - dest16[0] = (cur[0] << 8) | cur[1]; - dest16[1] = 0xffff; - } - } else { - STBI_ASSERT(img_n == 3); - for(i = 0; i < x; ++i, dest16 += 4, cur += 6) { - dest16[0] = (cur[0] << 8) | cur[1]; - dest16[1] = (cur[2] << 8) | cur[3]; - dest16[2] = (cur[4] << 8) | cur[5]; - dest16[3] = 0xffff; - } - } - } - } - } + if (img_n == out_n) { + for (i = 0; i < nsmp; ++i, ++dest16, cur += 2) + *dest16 = (cur[0] << 8) | cur[1]; + } else { + STBI_ASSERT(img_n+1 == out_n); + if (img_n == 1) { + for (i = 0; i < x; ++i, dest16 += 2, cur += 2) { + dest16[0] = (cur[0] << 8) | cur[1]; + dest16[1] = 0xffff; + } + } else { + STBI_ASSERT(img_n == 3); + for (i = 0; i < x; ++i, dest16 += 4, cur += 6) { + dest16[0] = (cur[0] << 8) | cur[1]; + dest16[1] = (cur[2] << 8) | cur[3]; + dest16[2] = (cur[4] << 8) | cur[5]; + dest16[3] = 0xffff; + } + } + } + } + } - STBI_FREE(filter_buf); - if(!all_ok) return 0; + STBI_FREE(filter_buf); + if (!all_ok) return 0; - return 1; + return 1; } -static int stbi__create_png_image(stbi__png* a, stbi_uc* image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) { - int bytes = (depth == 16 ? 2 : 1); - int out_bytes = out_n * bytes; - stbi_uc* final; - int p; - if(!interlaced) - return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); - // de-interlacing - final = (stbi_uc*)stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); - if(!final) return stbi__err("outofmem", "Out of memory"); - for(p = 0; p < 7; ++p) { - int xorig[] = {0, 4, 0, 2, 0, 1, 0}; - int yorig[] = {0, 0, 4, 0, 2, 0, 1}; - int xspc[] = {8, 8, 4, 4, 2, 2, 1}; - int yspc[] = {8, 8, 8, 4, 4, 2, 2}; - int i, j, x, y; - // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 - x = (a->s->img_x - xorig[p] + xspc[p] - 1) / xspc[p]; - y = (a->s->img_y - yorig[p] + yspc[p] - 1) / yspc[p]; - if(x && y) { - stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; - if(!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { - STBI_FREE(final); - return 0; - } - for(j = 0; j < y; ++j) { - for(i = 0; i < x; ++i) { - int out_y = j * yspc[p] + yorig[p]; - int out_x = i * xspc[p] + xorig[p]; - memcpy(final + out_y * a->s->img_x * out_bytes + out_x * out_bytes, - a->out + (j * x + i) * out_bytes, out_bytes); - } - } - STBI_FREE(a->out); - image_data += img_len; - image_data_len -= img_len; - } - } - a->out = final; + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + if (!final) return stbi__err("outofmem", "Out of memory"); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; - return 1; + return 1; } -static int stbi__compute_transparency(stbi__png* z, stbi_uc tc[3], int out_n) { - stbi__context* s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc* p = z->out; +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; - // compute color-based transparency, assuming we've - // already got 255 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); - if(out_n == 2) { - for(i = 0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 255); - p += 2; - } - } else { - for(i = 0; i < pixel_count; ++i) { - if(p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; } -static int stbi__compute_transparency16(stbi__png* z, stbi__uint16 tc[3], int out_n) { - stbi__context* s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi__uint16* p = (stbi__uint16*)z->out; +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; - // compute color-based transparency, assuming we've - // already got 65535 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); - if(out_n == 2) { - for(i = 0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 65535); - p += 2; - } - } else { - for(i = 0; i < pixel_count; ++i) { - if(p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; } -static int stbi__expand_png_palette(stbi__png* a, stbi_uc* palette, int len, int pal_img_n) { - stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; - stbi_uc * p, *temp_out, *orig = a->out; +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; - p = (stbi_uc*)stbi__malloc_mad2(pixel_count, pal_img_n, 0); - if(p == NULL) return stbi__err("outofmem", "Out of memory"); + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); - // between here and free(out) below, exitting would leak - temp_out = p; + // between here and free(out) below, exitting would leak + temp_out = p; - if(pal_img_n == 3) { - for(i = 0; i < pixel_count; ++i) { - int n = orig[i] * 4; - p[0] = palette[n]; - p[1] = palette[n + 1]; - p[2] = palette[n + 2]; - p += 3; - } - } else { - for(i = 0; i < pixel_count; ++i) { - int n = orig[i] * 4; - p[0] = palette[n]; - p[1] = palette[n + 1]; - p[2] = palette[n + 2]; - p[3] = palette[n + 3]; - p += 4; - } - } - STBI_FREE(a->out); - a->out = temp_out; + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; - STBI_NOTUSED(len); + STBI_NOTUSED(len); - return 1; + return 1; } static int stbi__unpremultiply_on_load_global = 0; -static int stbi__de_iphone_flag_global = 0; +static int stbi__de_iphone_flag_global = 0; -STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) { - stbi__unpremultiply_on_load_global = flag_true_if_should_unpremultiply; +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load_global = flag_true_if_should_unpremultiply; } -STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) { - stbi__de_iphone_flag_global = flag_true_if_should_convert; +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag_global = flag_true_if_should_convert; } #ifndef STBI_THREAD_LOCAL -#define stbi__unpremultiply_on_load stbi__unpremultiply_on_load_global -#define stbi__de_iphone_flag stbi__de_iphone_flag_global +#define stbi__unpremultiply_on_load stbi__unpremultiply_on_load_global +#define stbi__de_iphone_flag stbi__de_iphone_flag_global #else static STBI_THREAD_LOCAL int stbi__unpremultiply_on_load_local, stbi__unpremultiply_on_load_set; static STBI_THREAD_LOCAL int stbi__de_iphone_flag_local, stbi__de_iphone_flag_set; -STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply) { - stbi__unpremultiply_on_load_local = flag_true_if_should_unpremultiply; - stbi__unpremultiply_on_load_set = 1; +STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load_local = flag_true_if_should_unpremultiply; + stbi__unpremultiply_on_load_set = 1; } -STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert) { - stbi__de_iphone_flag_local = flag_true_if_should_convert; - stbi__de_iphone_flag_set = 1; +STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag_local = flag_true_if_should_convert; + stbi__de_iphone_flag_set = 1; } -#define stbi__unpremultiply_on_load (stbi__unpremultiply_on_load_set \ - ? stbi__unpremultiply_on_load_local \ - : stbi__unpremultiply_on_load_global) -#define stbi__de_iphone_flag (stbi__de_iphone_flag_set \ - ? stbi__de_iphone_flag_local \ - : stbi__de_iphone_flag_global) +#define stbi__unpremultiply_on_load (stbi__unpremultiply_on_load_set \ + ? stbi__unpremultiply_on_load_local \ + : stbi__unpremultiply_on_load_global) +#define stbi__de_iphone_flag (stbi__de_iphone_flag_set \ + ? stbi__de_iphone_flag_local \ + : stbi__de_iphone_flag_global) #endif // STBI_THREAD_LOCAL -static void stbi__de_iphone(stbi__png* z) { - stbi__context* s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc* p = z->out; +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; - if(s->img_out_n == 3) { // convert bgr to rgb - for(i = 0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 3; - } - } else { - STBI_ASSERT(s->img_out_n == 4); - if(stbi__unpremultiply_on_load) { - // convert bgr to rgb and unpremultiply - for(i = 0; i < pixel_count; ++i) { - stbi_uc a = p[3]; - stbi_uc t = p[0]; - if(a) { - stbi_uc half = a / 2; - p[0] = (p[2] * 255 + half) / a; - p[1] = (p[1] * 255 + half) / a; - p[2] = (t * 255 + half) / a; - } else { - p[0] = p[2]; - p[2] = t; - } - p += 4; - } - } else { - // convert bgr to rgb - for(i = 0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 4; - } - } - } + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } } -#define STBI__PNG_TYPE(a, b, c, d) (((unsigned)(a) << 24) + ((unsigned)(b) << 16) + ((unsigned)(c) << 8) + (unsigned)(d)) +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) -static int stbi__parse_png_file(stbi__png* z, int scan, int req_comp) { - stbi_uc palette[1024], pal_img_n = 0; - stbi_uc has_trans = 0, tc[3] = {0}; - stbi__uint16 tc16[3]; - stbi__uint32 ioff = 0, idata_limit = 0, i, pal_len = 0; - int first = 1, k, interlace = 0, color = 0, is_iphone = 0; - stbi__context* s = z->s; +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; - z->expanded = NULL; - z->idata = NULL; - z->out = NULL; + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; - if(!stbi__check_png_header(s)) return 0; + if (!stbi__check_png_header(s)) return 0; - if(scan == STBI__SCAN_type) return 1; + if (scan == STBI__SCAN_type) return 1; - for(;;) { - stbi__pngchunk c = stbi__get_chunk_header(s); - switch(c.type) { - case STBI__PNG_TYPE('C', 'g', 'B', 'I'): - is_iphone = 1; - stbi__skip(s, c.length); - break; - case STBI__PNG_TYPE('I', 'H', 'D', 'R'): - { - int comp, filter; - if(!first) return stbi__err("multiple IHDR", "Corrupt PNG"); - first = 0; - if(c.length != 13) return stbi__err("bad IHDR len", "Corrupt PNG"); - s->img_x = stbi__get32be(s); - s->img_y = stbi__get32be(s); - if(s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); - if(s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); - z->depth = stbi__get8(s); - if(z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only", "PNG not supported: 1/2/4/8/16-bit only"); - color = stbi__get8(s); - if(color > 6) return stbi__err("bad ctype", "Corrupt PNG"); - if(color == 3 && z->depth == 16) return stbi__err("bad ctype", "Corrupt PNG"); - if(color == 3) pal_img_n = 3; - else if(color & 1) - return stbi__err("bad ctype", "Corrupt PNG"); - comp = stbi__get8(s); - if(comp) return stbi__err("bad comp method", "Corrupt PNG"); - filter = stbi__get8(s); - if(filter) return stbi__err("bad filter method", "Corrupt PNG"); - interlace = stbi__get8(s); - if(interlace > 1) return stbi__err("bad interlace method", "Corrupt PNG"); - if(!s->img_x || !s->img_y) return stbi__err("0-pixel image", "Corrupt PNG"); - if(!pal_img_n) { - s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); - if((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); - } else { - // if paletted, then pal_n is our final components, and - // img_n is # components to decompress/filter. - s->img_n = 1; - if((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large", "Corrupt PNG"); - } - // even with SCAN_header, have to scan to see if we have a tRNS - break; - } + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); + s->img_y = stbi__get32be(s); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + } + // even with SCAN_header, have to scan to see if we have a tRNS + break; + } - case STBI__PNG_TYPE('P', 'L', 'T', 'E'): - { - if(first) return stbi__err("first not IHDR", "Corrupt PNG"); - if(c.length > 256 * 3) return stbi__err("invalid PLTE", "Corrupt PNG"); - pal_len = c.length / 3; - if(pal_len * 3 != c.length) return stbi__err("invalid PLTE", "Corrupt PNG"); - for(i = 0; i < pal_len; ++i) { - palette[i * 4 + 0] = stbi__get8(s); - palette[i * 4 + 1] = stbi__get8(s); - palette[i * 4 + 2] = stbi__get8(s); - palette[i * 4 + 3] = 255; - } - break; - } + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } - case STBI__PNG_TYPE('t', 'R', 'N', 'S'): - { - if(first) return stbi__err("first not IHDR", "Corrupt PNG"); - if(z->idata) return stbi__err("tRNS after IDAT", "Corrupt PNG"); - if(pal_img_n) { - if(scan == STBI__SCAN_header) { - s->img_n = 4; - return 1; - } - if(pal_len == 0) return stbi__err("tRNS before PLTE", "Corrupt PNG"); - if(c.length > pal_len) return stbi__err("bad tRNS len", "Corrupt PNG"); - pal_img_n = 4; - for(i = 0; i < c.length; ++i) - palette[i * 4 + 3] = stbi__get8(s); - } else { - if(!(s->img_n & 1)) return stbi__err("tRNS with alpha", "Corrupt PNG"); - if(c.length != (stbi__uint32)s->img_n * 2) return stbi__err("bad tRNS len", "Corrupt PNG"); - has_trans = 1; - // non-paletted with tRNS = constant alpha. if header-scanning, we can stop now. - if(scan == STBI__SCAN_header) { - ++s->img_n; - return 1; - } - if(z->depth == 16) { - for(k = 0; k < s->img_n && k < 3; ++k) // extra loop test to suppress false GCC warning - tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is - } else { - for(k = 0; k < s->img_n && k < 3; ++k) - tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger - } - } - break; - } + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + // non-paletted with tRNS = constant alpha. if header-scanning, we can stop now. + if (scan == STBI__SCAN_header) { ++s->img_n; return 1; } + if (z->depth == 16) { + for (k = 0; k < s->img_n && k < 3; ++k) // extra loop test to suppress false GCC warning + tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n && k < 3; ++k) + tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } - case STBI__PNG_TYPE('I', 'D', 'A', 'T'): - { - if(first) return stbi__err("first not IHDR", "Corrupt PNG"); - if(pal_img_n && !pal_len) return stbi__err("no PLTE", "Corrupt PNG"); - if(scan == STBI__SCAN_header) { - // header scan definitely stops at first IDAT - if(pal_img_n) - s->img_n = pal_img_n; - return 1; - } - if(c.length > (1u << 30)) return stbi__err("IDAT size limit", "IDAT section larger than 2^30 bytes"); - if((int)(ioff + c.length) < (int)ioff) return 0; - if(ioff + c.length > idata_limit) { - stbi__uint32 idata_limit_old = idata_limit; - stbi_uc* p; - if(idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; - while(ioff + c.length > idata_limit) - idata_limit *= 2; - STBI_NOTUSED(idata_limit_old); - p = (stbi_uc*)STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); - if(p == NULL) return stbi__err("outofmem", "Out of memory"); - z->idata = p; - } - if(!stbi__getn(s, z->idata + ioff, c.length)) return stbi__err("outofdata", "Corrupt PNG"); - ioff += c.length; - break; - } + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { + // header scan definitely stops at first IDAT + if (pal_img_n) + s->img_n = pal_img_n; + return 1; + } + if (c.length > (1u << 30)) return stbi__err("IDAT size limit", "IDAT section larger than 2^30 bytes"); + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } - case STBI__PNG_TYPE('I', 'E', 'N', 'D'): - { - stbi__uint32 raw_len, bpl; - if(first) return stbi__err("first not IHDR", "Corrupt PNG"); - if(scan != STBI__SCAN_load) return 1; - if(z->idata == NULL) return stbi__err("no IDAT", "Corrupt PNG"); - // initial guess for decoded data size to avoid unnecessary reallocs - bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component - raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; - z->expanded = (stbi_uc*)stbi_zlib_decode_malloc_guesssize_headerflag((char*)z->idata, ioff, raw_len, (int*)&raw_len, !is_iphone); - if(z->expanded == NULL) return 0; // zlib should set error - STBI_FREE(z->idata); - z->idata = NULL; - if((req_comp == s->img_n + 1 && req_comp != 3 && !pal_img_n) || has_trans) - s->img_out_n = s->img_n + 1; - else - s->img_out_n = s->img_n; - if(!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; - if(has_trans) { - if(z->depth == 16) { - if(!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; - } else { - if(!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; - } - } - if(is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) - stbi__de_iphone(z); - if(pal_img_n) { - // pal_img_n == 3 or 4 - s->img_n = pal_img_n; // record the actual colors we had - s->img_out_n = pal_img_n; - if(req_comp >= 3) s->img_out_n = req_comp; - if(!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) - return 0; - } else if(has_trans) { - // non-paletted image with tRNS -> source image has (constant) alpha - ++s->img_n; - } - STBI_FREE(z->expanded); - z->expanded = NULL; - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - return 1; - } + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + return 1; + } - default: - // if critical, fail - if(first) return stbi__err("first not IHDR", "Corrupt PNG"); - if((c.type & (1 << 29)) == 0) { -#ifndef STBI_NO_FAILURE_STRINGS - // not threadsafe - static char invalid_chunk[] = "XXXX PNG chunk not known"; - invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); - invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); - invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); - invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); -#endif - return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); - } - stbi__skip(s, c.length); - break; - } - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - } + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } } -static void* stbi__do_png(stbi__png* p, int* x, int* y, int* n, int req_comp, stbi__result_info* ri) { - void* result = NULL; - if(req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - if(stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { - if(p->depth <= 8) - ri->bits_per_channel = 8; - else if(p->depth == 16) - ri->bits_per_channel = 16; - else - return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); - result = p->out; - p->out = NULL; - if(req_comp && req_comp != p->s->img_out_n) { - if(ri->bits_per_channel == 8) - result = stbi__convert_format((unsigned char*)result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - else - result = stbi__convert_format16((stbi__uint16*)result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - p->s->img_out_n = req_comp; - if(result == NULL) return result; - } - *x = p->s->img_x; - *y = p->s->img_y; - if(n) *n = p->s->img_n; - } - STBI_FREE(p->out); - p->out = NULL; - STBI_FREE(p->expanded); - p->expanded = NULL; - STBI_FREE(p->idata); - p->idata = NULL; +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth <= 8) + ri->bits_per_channel = 8; + else if (p->depth == 16) + ri->bits_per_channel = 16; + else + return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; - return result; + return result; } -static void* stbi__png_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - stbi__png p; - p.s = s; - return stbi__do_png(&p, x, y, comp, req_comp, ri); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); } -static int stbi__png_test(stbi__context* s) { - int r; - r = stbi__check_png_header(s); - stbi__rewind(s); - return r; +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; } -static int stbi__png_info_raw(stbi__png* p, int* x, int* y, int* comp) { - if(!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { - stbi__rewind(p->s); - return 0; - } - if(x) *x = p->s->img_x; - if(y) *y = p->s->img_y; - if(comp) *comp = p->s->img_n; - return 1; +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; } -static int stbi__png_info(stbi__context* s, int* x, int* y, int* comp) { - stbi__png p; - p.s = s; - return stbi__png_info_raw(&p, x, y, comp); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); } -static int stbi__png_is16(stbi__context* s) { - stbi__png p; - p.s = s; - if(!stbi__png_info_raw(&p, NULL, NULL, NULL)) - return 0; - if(p.depth != 16) { - stbi__rewind(p.s); - return 0; - } - return 1; +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; } #endif // Microsoft/Windows BMP image #ifndef STBI_NO_BMP -static int stbi__bmp_test_raw(stbi__context* s) { - int r; - int sz; - if(stbi__get8(s) != 'B') return 0; - if(stbi__get8(s) != 'M') return 0; - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - stbi__get32le(s); // discard data offset - sz = stbi__get32le(s); - r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); - return r; +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; } -static int stbi__bmp_test(stbi__context* s) { - int r = stbi__bmp_test_raw(s); - stbi__rewind(s); - return r; +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; } + // returns 0..31 for the highest set bit -static int stbi__high_bit(unsigned int z) { - int n = 0; - if(z == 0) return -1; - if(z >= 0x10000) { - n += 16; - z >>= 16; - } - if(z >= 0x00100) { - n += 8; - z >>= 8; - } - if(z >= 0x00010) { - n += 4; - z >>= 4; - } - if(z >= 0x00004) { - n += 2; - z >>= 2; - } - if(z >= 0x00002) { - n += 1; /* >>= 1;*/ - } - return n; +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; } -static int stbi__bitcount(unsigned int a) { - a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 - a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 - a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits - a = (a + (a >> 8)); // max 16 per 8 bits - a = (a + (a >> 16)); // max 32 per 8 bits - return a & 0xff; +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; } // extract an arbitrarily-aligned N-bit value (N=bits) // from v, and then make it 8-bits long and fractionally // extend it to full full range. -static int stbi__shiftsigned(unsigned int v, int shift, int bits) { - static unsigned int mul_table[9] = { - 0, - 0xff /*0b11111111*/, - 0x55 /*0b01010101*/, - 0x49 /*0b01001001*/, - 0x11 /*0b00010001*/, - 0x21 /*0b00100001*/, - 0x41 /*0b01000001*/, - 0x81 /*0b10000001*/, - 0x01 /*0b00000001*/, - }; - static unsigned int shift_table[9] = { - 0, - 0, - 0, - 1, - 0, - 2, - 4, - 6, - 0, - }; - if(shift < 0) - v <<= -shift; - else - v >>= shift; - STBI_ASSERT(v < 256); - v >>= (8 - bits); - STBI_ASSERT(bits >= 0 && bits <= 8); - return (int)((unsigned)v * mul_table[bits]) >> shift_table[bits]; +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; } typedef struct { - int bpp, offset, hsz; - unsigned int mr, mg, mb, ma, all_a; - int extra_read; + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; + int extra_read; } stbi__bmp_data; -static int stbi__bmp_set_mask_defaults(stbi__bmp_data* info, int compress) { - // BI_BITFIELDS specifies masks explicitly, don't override - if(compress == 3) - return 1; +static int stbi__bmp_set_mask_defaults(stbi__bmp_data *info, int compress) +{ + // BI_BITFIELDS specifies masks explicitly, don't override + if (compress == 3) + return 1; - if(compress == 0) { - if(info->bpp == 16) { - info->mr = 31u << 10; - info->mg = 31u << 5; - info->mb = 31u << 0; - } else if(info->bpp == 32) { - info->mr = 0xffu << 16; - info->mg = 0xffu << 8; - info->mb = 0xffu << 0; - info->ma = 0xffu << 24; - info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 - } else { - // otherwise, use defaults, which is all-0 - info->mr = info->mg = info->mb = info->ma = 0; - } - return 1; - } - return 0; // error + if (compress == 0) { + if (info->bpp == 16) { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } else if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + // otherwise, use defaults, which is all-0 + info->mr = info->mg = info->mb = info->ma = 0; + } + return 1; + } + return 0; // error } -static void* stbi__bmp_parse_header(stbi__context* s, stbi__bmp_data* info) { - int hsz; - if(stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - info->offset = stbi__get32le(s); - info->hsz = hsz = stbi__get32le(s); - info->mr = info->mg = info->mb = info->ma = 0; - info->extra_read = 14; +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + info->extra_read = 14; - if(info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); + if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); - if(hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); - if(hsz == 12) { - s->img_x = stbi__get16le(s); - s->img_y = stbi__get16le(s); - } else { - s->img_x = stbi__get32le(s); - s->img_y = stbi__get32le(s); - } - if(stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); - info->bpp = stbi__get16le(s); - if(hsz != 12) { - int compress = stbi__get32le(s); - if(compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); - if(compress >= 4) return stbi__errpuc("BMP JPEG/PNG", "BMP type not supported: unsupported compression"); // this includes PNG/JPEG modes - if(compress == 3 && info->bpp != 16 && info->bpp != 32) return stbi__errpuc("bad BMP", "bad BMP"); // bitfields requires 16 or 32 bits/pixel - stbi__get32le(s); // discard sizeof - stbi__get32le(s); // discard hres - stbi__get32le(s); // discard vres - stbi__get32le(s); // discard colorsused - stbi__get32le(s); // discard max important - if(hsz == 40 || hsz == 56) { - if(hsz == 56) { - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - } - if(info->bpp == 16 || info->bpp == 32) { - if(compress == 0) { - stbi__bmp_set_mask_defaults(info, compress); - } else if(compress == 3) { - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->extra_read += 12; - // not documented, but generated by photoshop and handled by mspaint - if(info->mr == info->mg && info->mg == info->mb) { - // ?!?!? - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else { - // V4/V5 header - int i; - if(hsz != 108 && hsz != 124) - return stbi__errpuc("bad BMP", "bad BMP"); - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->ma = stbi__get32le(s); - if(compress != 3) // override mr/mg/mb unless in BI_BITFIELDS mode, as per docs - stbi__bmp_set_mask_defaults(info, compress); - stbi__get32le(s); // discard color space - for(i = 0; i < 12; ++i) - stbi__get32le(s); // discard color space parameters - if(hsz == 124) { - stbi__get32le(s); // discard rendering intent - stbi__get32le(s); // discard offset of profile data - stbi__get32le(s); // discard size of profile data - stbi__get32le(s); // discard reserved - } - } - } - return (void*)1; + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + if (compress >= 4) return stbi__errpuc("BMP JPEG/PNG", "BMP type not supported: unsupported compression"); // this includes PNG/JPEG modes + if (compress == 3 && info->bpp != 16 && info->bpp != 32) return stbi__errpuc("bad BMP", "bad BMP"); // bitfields requires 16 or 32 bits/pixel + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + stbi__bmp_set_mask_defaults(info, compress); + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->extra_read += 12; + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + // V4/V5 header + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + if (compress != 3) // override mr/mg/mb unless in BI_BITFIELDS mode, as per docs + stbi__bmp_set_mask_defaults(info, compress); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; } -static void* stbi__bmp_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - stbi_uc* out; - unsigned int mr = 0, mg = 0, mb = 0, ma = 0, all_a; - stbi_uc pal[256][4]; - int psize = 0, i, j, width; - int flip_vertically, pad, target; - stbi__bmp_data info; - STBI_NOTUSED(ri); - info.all_a = 255; - if(stbi__bmp_parse_header(s, &info) == NULL) - return NULL; // error code already set +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); - flip_vertically = ((int)s->img_y) > 0; - s->img_y = abs((int)s->img_y); + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set - if(s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); - if(s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); - mr = info.mr; - mg = info.mg; - mb = info.mb; - ma = info.ma; - all_a = info.all_a; + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if(info.hsz == 12) { - if(info.bpp < 24) - psize = (info.offset - info.extra_read - 24) / 3; - } else { - if(info.bpp < 16) - psize = (info.offset - info.extra_read - info.hsz) >> 2; - } - if(psize == 0) { - // accept some number of extra bytes after the header, but if the offset points either to before - // the header ends or implies a large amount of extra data, reject the file as malformed - int bytes_read_so_far = s->callback_already_read + (int)(s->img_buffer - s->img_buffer_original); - int header_limit = 1024; // max we actually read is below 256 bytes currently. - int extra_data_limit = 256 * 4; // what ordinarily goes here is a palette; 256 entries*4 bytes is its max size. - if(bytes_read_so_far <= 0 || bytes_read_so_far > header_limit) { - return stbi__errpuc("bad header", "Corrupt BMP"); - } - // we established that bytes_read_so_far is positive and sensible. - // the first half of this test rejects offsets that are either too small positives, or - // negative, and guarantees that info.offset >= bytes_read_so_far > 0. this in turn - // ensures the number computed in the second half of the test can't overflow. - if(info.offset < bytes_read_so_far || info.offset - bytes_read_so_far > extra_data_limit) { - return stbi__errpuc("bad offset", "Corrupt BMP"); - } else { - stbi__skip(s, info.offset - bytes_read_so_far); - } - } + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; - if(info.bpp == 24 && ma == 0xff000000) - s->img_n = 3; - else - s->img_n = ma ? 4 : 3; - if(req_comp && req_comp >= 3) // we can directly decode 3 or 4 - target = req_comp; - else - target = s->img_n; // if they want monochrome, we'll post-convert + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - info.extra_read - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - info.extra_read - info.hsz) >> 2; + } + if (psize == 0) { + // accept some number of extra bytes after the header, but if the offset points either to before + // the header ends or implies a large amount of extra data, reject the file as malformed + int bytes_read_so_far = s->callback_already_read + (int)(s->img_buffer - s->img_buffer_original); + int header_limit = 1024; // max we actually read is below 256 bytes currently. + int extra_data_limit = 256*4; // what ordinarily goes here is a palette; 256 entries*4 bytes is its max size. + if (bytes_read_so_far <= 0 || bytes_read_so_far > header_limit) { + return stbi__errpuc("bad header", "Corrupt BMP"); + } + // we established that bytes_read_so_far is positive and sensible. + // the first half of this test rejects offsets that are either too small positives, or + // negative, and guarantees that info.offset >= bytes_read_so_far > 0. this in turn + // ensures the number computed in the second half of the test can't overflow. + if (info.offset < bytes_read_so_far || info.offset - bytes_read_so_far > extra_data_limit) { + return stbi__errpuc("bad offset", "Corrupt BMP"); + } else { + stbi__skip(s, info.offset - bytes_read_so_far); + } + } - // sanity-check size - if(!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) - return stbi__errpuc("too large", "Corrupt BMP"); + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert - out = (stbi_uc*)stbi__malloc_mad3(target, s->img_x, s->img_y, 0); - if(!out) return stbi__errpuc("outofmem", "Out of memory"); - if(info.bpp < 16) { - int z = 0; - if(psize == 0 || psize > 256) { - STBI_FREE(out); - return stbi__errpuc("invalid", "Corrupt BMP"); - } - for(i = 0; i < psize; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - if(info.hsz != 12) stbi__get8(s); - pal[i][3] = 255; - } - stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); - if(info.bpp == 1) width = (s->img_x + 7) >> 3; - else if(info.bpp == 4) - width = (s->img_x + 1) >> 1; - else if(info.bpp == 8) - width = s->img_x; - else { - STBI_FREE(out); - return stbi__errpuc("bad bpp", "Corrupt BMP"); - } - pad = (-width) & 3; - if(info.bpp == 1) { - for(j = 0; j < (int)s->img_y; ++j) { - int bit_offset = 7, v = stbi__get8(s); - for(i = 0; i < (int)s->img_x; ++i) { - int color = (v >> bit_offset) & 0x1; - out[z++] = pal[color][0]; - out[z++] = pal[color][1]; - out[z++] = pal[color][2]; - if(target == 4) out[z++] = 255; - if(i + 1 == (int)s->img_x) break; - if((--bit_offset) < 0) { - bit_offset = 7; - v = stbi__get8(s); - } - } - stbi__skip(s, pad); - } - } else { - for(j = 0; j < (int)s->img_y; ++j) { - for(i = 0; i < (int)s->img_x; i += 2) { - int v = stbi__get8(s), v2 = 0; - if(info.bpp == 4) { - v2 = v & 15; - v >>= 4; - } - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if(target == 4) out[z++] = 255; - if(i + 1 == (int)s->img_x) break; - v = (info.bpp == 8) ? stbi__get8(s) : v2; - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if(target == 4) out[z++] = 255; - } - stbi__skip(s, pad); - } - } - } else { - int rshift = 0, gshift = 0, bshift = 0, ashift = 0, rcount = 0, gcount = 0, bcount = 0, acount = 0; - int z = 0; - int easy = 0; - stbi__skip(s, info.offset - info.extra_read - info.hsz); - if(info.bpp == 24) width = 3 * s->img_x; - else if(info.bpp == 16) - width = 2 * s->img_x; - else /* bpp = 32 and pad = 0 */ - width = 0; - pad = (-width) & 3; - if(info.bpp == 24) { - easy = 1; - } else if(info.bpp == 32) { - if(mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) - easy = 2; - } - if(!easy) { - if(!mr || !mg || !mb) { - STBI_FREE(out); - return stbi__errpuc("bad masks", "Corrupt BMP"); - } - // right shift amt to put high bit in position #7 - rshift = stbi__high_bit(mr) - 7; - rcount = stbi__bitcount(mr); - gshift = stbi__high_bit(mg) - 7; - gcount = stbi__bitcount(mg); - bshift = stbi__high_bit(mb) - 7; - bcount = stbi__bitcount(mb); - ashift = stbi__high_bit(ma) - 7; - acount = stbi__bitcount(ma); - if(rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { - STBI_FREE(out); - return stbi__errpuc("bad masks", "Corrupt BMP"); - } - } - for(j = 0; j < (int)s->img_y; ++j) { - if(easy) { - for(i = 0; i < (int)s->img_x; ++i) { - unsigned char a; - out[z + 2] = stbi__get8(s); - out[z + 1] = stbi__get8(s); - out[z + 0] = stbi__get8(s); - z += 3; - a = (easy == 2 ? stbi__get8(s) : 255); - all_a |= a; - if(target == 4) out[z++] = a; - } - } else { - int bpp = info.bpp; - for(i = 0; i < (int)s->img_x; ++i) { - stbi__uint32 v = (bpp == 16 ? (stbi__uint32)stbi__get16le(s) : stbi__get32le(s)); - unsigned int a; - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); - a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); - all_a |= a; - if(target == 4) out[z++] = STBI__BYTECAST(a); - } - } - stbi__skip(s, pad); - } - } + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); - // if alpha channel is all 0s, replace with all 255s - if(target == 4 && all_a == 0) - for(i = 4 * s->img_x * s->img_y - 1; i >= 0; i -= 4) - out[i] = 255; + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - info.extra_read - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } - if(flip_vertically) { - stbi_uc t; - for(j = 0; j < (int)s->img_y >> 1; ++j) { - stbi_uc* p1 = out + j * s->img_x * target; - stbi_uc* p2 = out + (s->img_y - 1 - j) * s->img_x * target; - for(i = 0; i < (int)s->img_x * target; ++i) { - t = p1[i]; - p1[i] = p2[i]; - p2[i] = t; - } - } - } + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; - if(req_comp && req_comp != target) { - out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); - if(out == NULL) return out; // stbi__convert_format frees input on failure - } + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } - *x = s->img_x; - *y = s->img_y; - if(comp) *comp = s->img_n; - return out; + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; } #endif @@ -5858,327 +5736,341 @@ static void* stbi__bmp_load(stbi__context* s, int* x, int* y, int* comp, int req // by Jonathan Dummer #ifndef STBI_NO_TGA // returns STBI_rgb or whatever, 0 on error -static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) { - // only RGB or RGBA (incl. 16bit) or grey allowed - if(is_rgb16) *is_rgb16 = 0; - switch(bits_per_pixel) { - case 8: - return STBI_grey; - case 16: - if(is_grey) return STBI_grey_alpha; - // fallthrough - case 15: - if(is_rgb16) *is_rgb16 = 1; - return STBI_rgb; - case 24: // fallthrough - case 32: - return bits_per_pixel / 8; - default: - return 0; - } +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } } -static int stbi__tga_info(stbi__context* s, int* x, int* y, int* comp) { - int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; - int sz, tga_colormap_type; - stbi__get8(s); // discard Offset - tga_colormap_type = stbi__get8(s); // colormap type - if(tga_colormap_type > 1) { - stbi__rewind(s); - return 0; // only RGB or indexed allowed - } - tga_image_type = stbi__get8(s); // image type - if(tga_colormap_type == 1) { // colormapped (paletted) image - if(tga_image_type != 1 && tga_image_type != 9) { - stbi__rewind(s); - return 0; - } - stbi__skip(s, 4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32)) { - stbi__rewind(s); - return 0; - } - stbi__skip(s, 4); // skip image x and y origin - tga_colormap_bpp = sz; - } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE - if((tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11)) { - stbi__rewind(s); - return 0; // only RGB or grey allowed, +/- RLE - } - stbi__skip(s, 9); // skip colormap specification and image x/y origin - tga_colormap_bpp = 0; - } - tga_w = stbi__get16le(s); - if(tga_w < 1) { - stbi__rewind(s); - return 0; // test width - } - tga_h = stbi__get16le(s); - if(tga_h < 1) { - stbi__rewind(s); - return 0; // test height - } - tga_bits_per_pixel = stbi__get8(s); // bits per pixel - stbi__get8(s); // ignore alpha bits - if(tga_colormap_bpp != 0) { - if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { - // when using a colormap, tga_bits_per_pixel is the size of the indexes - // I don't think anything but 8 or 16bit indexes makes sense - stbi__rewind(s); - return 0; - } - tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); - } else { - tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); - } - if(!tga_comp) { - stbi__rewind(s); - return 0; - } - if(x) *x = tga_w; - if(y) *y = tga_h; - if(comp) *comp = tga_comp; - return 1; // seems to have passed everything +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything } -static int stbi__tga_test(stbi__context* s) { - int res = 0; - int sz, tga_color_type; - stbi__get8(s); // discard Offset - tga_color_type = stbi__get8(s); // color type - if(tga_color_type > 1) goto errorEnd; // only RGB or indexed allowed - sz = stbi__get8(s); // image type - if(tga_color_type == 1) { // colormapped (paletted) image - if(sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 - stbi__skip(s, 4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32)) goto errorEnd; - stbi__skip(s, 4); // skip image x and y origin - } else { // "normal" image w/o colormap - if((sz != 2) && (sz != 3) && (sz != 10) && (sz != 11)) goto errorEnd; // only RGB or grey allowed, +/- RLE - stbi__skip(s, 9); // skip colormap specification and image x/y origin - } - if(stbi__get16le(s) < 1) goto errorEnd; // test width - if(stbi__get16le(s) < 1) goto errorEnd; // test height - sz = stbi__get8(s); // bits per pixel - if((tga_color_type == 1) && (sz != 8) && (sz != 16)) goto errorEnd; // for colormapped images, bpp is size of an index - if((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32)) goto errorEnd; +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; - res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 errorEnd: - stbi__rewind(s); - return res; + stbi__rewind(s); + return res; } // read 16bit value and convert to 24bit RGB -static void stbi__tga_read_rgb16(stbi__context* s, stbi_uc* out) { - stbi__uint16 px = (stbi__uint16)stbi__get16le(s); - stbi__uint16 fiveBitMask = 31; - // we have 3 channels with 5bits each - int r = (px >> 10) & fiveBitMask; - int g = (px >> 5) & fiveBitMask; - int b = px & fiveBitMask; - // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later - out[0] = (stbi_uc)((r * 255) / 31); - out[1] = (stbi_uc)((g * 255) / 31); - out[2] = (stbi_uc)((b * 255) / 31); +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); - // some people claim that the most significant bit might be used for alpha - // (possibly if an alpha-bit is set in the "image descriptor byte") - // but that only made 16bit test images completely translucent.. - // so let's treat all 15 and 16bit TGAs as RGB with no alpha. + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. } -static void* stbi__tga_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - // read in the TGA header stuff - int tga_offset = stbi__get8(s); - int tga_indexed = stbi__get8(s); - int tga_image_type = stbi__get8(s); - int tga_is_RLE = 0; - int tga_palette_start = stbi__get16le(s); - int tga_palette_len = stbi__get16le(s); - int tga_palette_bits = stbi__get8(s); - int tga_x_origin = stbi__get16le(s); - int tga_y_origin = stbi__get16le(s); - int tga_width = stbi__get16le(s); - int tga_height = stbi__get16le(s); - int tga_bits_per_pixel = stbi__get8(s); - int tga_comp, tga_rgb16 = 0; - int tga_inverted = stbi__get8(s); - // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) - // image data - unsigned char* tga_data; - unsigned char* tga_palette = NULL; - int i, j; - unsigned char raw_data[4] = {0}; - int RLE_count = 0; - int RLE_repeating = 0; - int read_next_pixel = 1; - STBI_NOTUSED(ri); - STBI_NOTUSED(tga_x_origin); // @TODO - STBI_NOTUSED(tga_y_origin); // @TODO +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO - if(tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); - if(tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); + if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - // do a tiny bit of precessing - if(tga_image_type >= 8) { - tga_image_type -= 8; - tga_is_RLE = 1; - } - tga_inverted = 1 - ((tga_inverted >> 5) & 1); + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); - // If I'm paletted, then I'll use the number of bits from the palette - if(tga_indexed) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); - else - tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); - if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency - return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); - // tga info - *x = tga_width; - *y = tga_height; - if(comp) *comp = tga_comp; + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; - if(!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) - return stbi__errpuc("too large", "Corrupt TGA"); + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); - tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); - if(!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); - // skip to the data's starting position (offset usually = 0) - stbi__skip(s, tga_offset); + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); - if(!tga_indexed && !tga_is_RLE && !tga_rgb16) { - for(i = 0; i < tga_height; ++i) { - int row = tga_inverted ? tga_height - i - 1 : i; - stbi_uc* tga_row = tga_data + row * tga_width * tga_comp; - stbi__getn(s, tga_row, tga_width * tga_comp); - } - } else { - // do I need to load a palette? - if(tga_indexed) { - if(tga_palette_len == 0) { /* you have to have at least one entry! */ - STBI_FREE(tga_data); - return stbi__errpuc("bad palette", "Corrupt TGA"); - } + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + if (tga_palette_len == 0) { /* you have to have at least one entry! */ + STBI_FREE(tga_data); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } - // any data to skip? (offset usually = 0) - stbi__skip(s, tga_palette_start); - // load the palette - tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); - if(!tga_palette) { - STBI_FREE(tga_data); - return stbi__errpuc("outofmem", "Out of memory"); - } - if(tga_rgb16) { - stbi_uc* pal_entry = tga_palette; - STBI_ASSERT(tga_comp == STBI_rgb); - for(i = 0; i < tga_palette_len; ++i) { - stbi__tga_read_rgb16(s, pal_entry); - pal_entry += tga_comp; - } - } else if(!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { - STBI_FREE(tga_data); - STBI_FREE(tga_palette); - return stbi__errpuc("bad palette", "Corrupt TGA"); - } - } - // load the data - for(i = 0; i < tga_width * tga_height; ++i) { - // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? - if(tga_is_RLE) { - if(RLE_count == 0) { - // yep, get the next byte as a RLE command - int RLE_cmd = stbi__get8(s); - RLE_count = 1 + (RLE_cmd & 127); - RLE_repeating = RLE_cmd >> 7; - read_next_pixel = 1; - } else if(!RLE_repeating) { - read_next_pixel = 1; - } - } else { - read_next_pixel = 1; - } - // OK, if I need to read a pixel, do it now - if(read_next_pixel) { - // load however much data we did have - if(tga_indexed) { - // read in index, then perform the lookup - int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); - if(pal_idx >= tga_palette_len) { - // invalid index - pal_idx = 0; - } - pal_idx *= tga_comp; - for(j = 0; j < tga_comp; ++j) { - raw_data[j] = tga_palette[pal_idx + j]; - } - } else if(tga_rgb16) { - STBI_ASSERT(tga_comp == STBI_rgb); - stbi__tga_read_rgb16(s, raw_data); - } else { - // read in the data raw - for(j = 0; j < tga_comp; ++j) { - raw_data[j] = stbi__get8(s); - } - } - // clear the reading flag for the next pixel - read_next_pixel = 0; - } // end of reading a pixel + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel - // copy data - for(j = 0; j < tga_comp; ++j) - tga_data[i * tga_comp + j] = raw_data[j]; + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; - // in case we're in RLE mode, keep counting down - --RLE_count; - } - // do I need to invert the image? - if(tga_inverted) { - for(j = 0; j * 2 < tga_height; ++j) { - int index1 = j * tga_width * tga_comp; - int index2 = (tga_height - 1 - j) * tga_width * tga_comp; - for(i = tga_width * tga_comp; i > 0; --i) { - unsigned char temp = tga_data[index1]; - tga_data[index1] = tga_data[index2]; - tga_data[index2] = temp; - ++index1; - ++index2; - } - } - } - // clear my palette, if I had one - if(tga_palette != NULL) { - STBI_FREE(tga_palette); - } - } + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } - // swap RGB - if the source data was RGB16, it already is in the right order - if(tga_comp >= 3 && !tga_rgb16) { - unsigned char* tga_pixel = tga_data; - for(i = 0; i < tga_width * tga_height; ++i) { - unsigned char temp = tga_pixel[0]; - tga_pixel[0] = tga_pixel[2]; - tga_pixel[2] = temp; - tga_pixel += tga_comp; - } - } + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } - // convert to target component count - if(req_comp && req_comp != tga_comp) - tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); - // the things I do to get rid of an error message, and yet keep - // Microsoft's C compilers happy... [8^( - tga_palette_start = tga_palette_len = tga_palette_bits = - tga_x_origin = tga_y_origin = 0; - STBI_NOTUSED(tga_palette_start); - // OK, done - return tga_data; + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; } #endif @@ -6186,247 +6078,250 @@ static void* stbi__tga_load(stbi__context* s, int* x, int* y, int* comp, int req // Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB #ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context* s) { - int r = (stbi__get32be(s) == 0x38425053); - stbi__rewind(s); - return r; +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; } -static int stbi__psd_decode_rle(stbi__context* s, stbi_uc* p, int pixelCount) { - int count, nleft, len; +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; - count = 0; - while((nleft = pixelCount - count) > 0) { - len = stbi__get8(s); - if(len == 128) { - // No-op. - } else if(len < 128) { - // Copy next len+1 bytes literally. - len++; - if(len > nleft) return 0; // corrupt data - count += len; - while(len) { - *p = stbi__get8(s); - p += 4; - len--; - } - } else if(len > 128) { - stbi_uc val; - // Next -len+1 bytes in the dest are replicated from next source byte. - // (Interpret len as a negative 8-bit int.) - len = 257 - len; - if(len > nleft) return 0; // corrupt data - val = stbi__get8(s); - count += len; - while(len) { - *p = val; - p += 4; - len--; - } - } - } + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } - return 1; + return 1; } -static void* stbi__psd_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri, int bpc) { - int pixelCount; - int channelCount, compression; - int channel, i; - int bitdepth; - int w, h; - stbi_uc* out; - STBI_NOTUSED(ri); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); - // Check identifier - if(stbi__get32be(s) != 0x38425053) // "8BPS" - return stbi__errpuc("not PSD", "Corrupt PSD image"); + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); - // Check file type version. - if(stbi__get16be(s) != 1) - return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); - // Skip 6 reserved bytes. - stbi__skip(s, 6); + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); - // Read the number of channels (R, G, B, A, etc). - channelCount = stbi__get16be(s); - if(channelCount < 0 || channelCount > 16) - return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); - // Read the rows and columns of the image. - h = stbi__get32be(s); - w = stbi__get32be(s); + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); - if(h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); - if(w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); + if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - // Make sure the depth is 8 bits. - bitdepth = stbi__get16be(s); - if(bitdepth != 8 && bitdepth != 16) - return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); - // Make sure the color mode is RGB. - // Valid options are: - // 0: Bitmap - // 1: Grayscale - // 2: Indexed color - // 3: RGB color - // 4: CMYK color - // 7: Multichannel - // 8: Duotone - // 9: Lab color - if(stbi__get16be(s) != 3) - return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); - // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) - stbi__skip(s, stbi__get32be(s)); + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); - // Skip the image resources. (resolution, pen tool paths, etc) - stbi__skip(s, stbi__get32be(s)); + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); - // Skip the reserved data. - stbi__skip(s, stbi__get32be(s)); + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); - // Find out if the data is compressed. - // Known values: - // 0: no compression - // 1: RLE compressed - compression = stbi__get16be(s); - if(compression > 1) - return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); - // Check size - if(!stbi__mad3sizes_valid(4, w, h, 0)) - return stbi__errpuc("too large", "Corrupt PSD"); + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); - // Create the destination image. + // Create the destination image. - if(!compression && bitdepth == 16 && bpc == 16) { - out = (stbi_uc*)stbi__malloc_mad3(8, w, h, 0); - ri->bits_per_channel = 16; - } else - out = (stbi_uc*)stbi__malloc(4 * w * h); + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); - if(!out) return stbi__errpuc("outofmem", "Out of memory"); - pixelCount = w * h; + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; - // Initialize the data to zero. - // memset( out, 0, pixelCount * 4 ); + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); - // Finally, the image data. - if(compression) { - // RLE as used by .PSD and .TIFF - // Loop until you get the number of unpacked bytes you are expecting: - // Read the next source byte into n. - // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. - // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. - // Else if n is 128, noop. - // Endloop + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop - // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, - // which we're going to just skip. - stbi__skip(s, h * channelCount * 2); + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); - // Read the RLE data by channel. - for(channel = 0; channel < 4; channel++) { - stbi_uc* p; + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; - p = out + channel; - if(channel >= channelCount) { - // Fill this channel with default data. - for(i = 0; i < pixelCount; i++, p += 4) - *p = (channel == 3 ? 255 : 0); - } else { - // Read the RLE data. - if(!stbi__psd_decode_rle(s, p, pixelCount)) { - STBI_FREE(out); - return stbi__errpuc("corrupt", "bad RLE data"); - } - } - } + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } - } else { - // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) - // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. - // Read the data by channel. - for(channel = 0; channel < 4; channel++) { - if(channel >= channelCount) { - // Fill this channel with default data. - if(bitdepth == 16 && bpc == 16) { - stbi__uint16* q = ((stbi__uint16*)out) + channel; - stbi__uint16 val = channel == 3 ? 65535 : 0; - for(i = 0; i < pixelCount; i++, q += 4) - *q = val; - } else { - stbi_uc* p = out + channel; - stbi_uc val = channel == 3 ? 255 : 0; - for(i = 0; i < pixelCount; i++, p += 4) - *p = val; - } - } else { - if(ri->bits_per_channel == 16) { // output bpc - stbi__uint16* q = ((stbi__uint16*)out) + channel; - for(i = 0; i < pixelCount; i++, q += 4) - *q = (stbi__uint16)stbi__get16be(s); - } else { - stbi_uc* p = out + channel; - if(bitdepth == 16) { // input bpc - for(i = 0; i < pixelCount; i++, p += 4) - *p = (stbi_uc)(stbi__get16be(s) >> 8); - } else { - for(i = 0; i < pixelCount; i++, p += 4) - *p = stbi__get8(s); - } - } - } - } - } + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } - // remove weird white matte from PSD - if(channelCount >= 4) { - if(ri->bits_per_channel == 16) { - for(i = 0; i < w * h; ++i) { - stbi__uint16* pixel = (stbi__uint16*)out + 4 * i; - if(pixel[3] != 0 && pixel[3] != 65535) { - float a = pixel[3] / 65535.0f; - float ra = 1.0f / a; - float inv_a = 65535.0f * (1 - ra); - pixel[0] = (stbi__uint16)(pixel[0] * ra + inv_a); - pixel[1] = (stbi__uint16)(pixel[1] * ra + inv_a); - pixel[2] = (stbi__uint16)(pixel[2] * ra + inv_a); - } - } - } else { - for(i = 0; i < w * h; ++i) { - unsigned char* pixel = out + 4 * i; - if(pixel[3] != 0 && pixel[3] != 255) { - float a = pixel[3] / 255.0f; - float ra = 1.0f / a; - float inv_a = 255.0f * (1 - ra); - pixel[0] = (unsigned char)(pixel[0] * ra + inv_a); - pixel[1] = (unsigned char)(pixel[1] * ra + inv_a); - pixel[2] = (unsigned char)(pixel[2] * ra + inv_a); - } - } - } - } + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } - // convert to desired output format - if(req_comp && req_comp != 4) { - if(ri->bits_per_channel == 16) - out = (stbi_uc*)stbi__convert_format16((stbi__uint16*)out, 4, req_comp, w, h); - else - out = stbi__convert_format(out, 4, req_comp, w, h); - if(out == NULL) return out; // stbi__convert_format frees input on failure - } + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } - if(comp) *comp = 4; - *y = h; - *x = w; + if (comp) *comp = 4; + *y = h; + *x = w; - return out; + return out; } #endif @@ -6438,210 +6333,216 @@ static void* stbi__psd_load(stbi__context* s, int* x, int* y, int* comp, int req // See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ #ifndef STBI_NO_PIC -static int stbi__pic_is4(stbi__context* s, const char* str) { - int i; - for(i = 0; i < 4; ++i) - if(stbi__get8(s) != (stbi_uc)str[i]) - return 0; +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; - return 1; + return 1; } -static int stbi__pic_test_core(stbi__context* s) { - int i; +static int stbi__pic_test_core(stbi__context *s) +{ + int i; - if(!stbi__pic_is4(s, "\x53\x80\xF6\x34")) - return 0; + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; - for(i = 0; i < 84; ++i) - stbi__get8(s); + for(i=0;i<84;++i) + stbi__get8(s); - if(!stbi__pic_is4(s, "PICT")) - return 0; + if (!stbi__pic_is4(s,"PICT")) + return 0; - return 1; + return 1; } typedef struct { - stbi_uc size, type, channel; + stbi_uc size,type,channel; } stbi__pic_packet; -static stbi_uc* stbi__readval(stbi__context* s, int channel, stbi_uc* dest) { - int mask = 0x80, i; +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; - for(i = 0; i < 4; ++i, mask >>= 1) { - if(channel & mask) { - if(stbi__at_eof(s)) return stbi__errpuc("bad file", "PIC file too short"); - dest[i] = stbi__get8(s); - } - } + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } - return dest; + return dest; } -static void stbi__copyval(int channel, stbi_uc* dest, const stbi_uc* src) { - int mask = 0x80, i; +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; - for(i = 0; i < 4; ++i, mask >>= 1) - if(channel & mask) - dest[i] = src[i]; + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; } -static stbi_uc* stbi__pic_load_core(stbi__context* s, int width, int height, int* comp, stbi_uc* result) { - int act_comp = 0, num_packets = 0, y, chained; - stbi__pic_packet packets[10]; +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; - // this will (should...) cater for even some bizarre stuff like having data - // for the same channel in multiple packets. - do { - stbi__pic_packet* packet; + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; - if(num_packets == sizeof(packets) / sizeof(packets[0])) - return stbi__errpuc("bad format", "too many packets"); + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); - packet = &packets[num_packets++]; + packet = &packets[num_packets++]; - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); - act_comp |= packet->channel; + act_comp |= packet->channel; - if(stbi__at_eof(s)) return stbi__errpuc("bad file", "file too short (reading packets)"); - if(packet->size != 8) return stbi__errpuc("bad format", "packet isn't 8bpp"); - } while(chained); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); - *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? - for(y = 0; y < height; ++y) { - int packet_idx; + for(y=0; ytype) { - default: - return stbi__errpuc("bad format", "packet has bad compression type"); + switch (packet->type) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); - case 0: - { // uncompressed - int x; + case 0: {//uncompressed + int x; - for(x = 0; x < width; ++x, dest += 4) - if(!stbi__readval(s, packet->channel, dest)) - return 0; - break; - } + for(x=0;xchannel,dest)) + return 0; + break; + } - case 1: // Pure RLE - { - int left = width, i; + case 1://Pure RLE + { + int left=width, i; - while(left > 0) { - stbi_uc count, value[4]; + while (left>0) { + stbi_uc count,value[4]; - count = stbi__get8(s); - if(stbi__at_eof(s)) return stbi__errpuc("bad file", "file too short (pure read count)"); + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); - if(count > left) - count = (stbi_uc)left; + if (count > left) + count = (stbi_uc) left; - if(!stbi__readval(s, packet->channel, value)) return 0; + if (!stbi__readval(s,packet->channel,value)) return 0; - for(i = 0; i < count; ++i, dest += 4) - stbi__copyval(packet->channel, dest, value); - left -= count; - } - } break; + for(i=0; ichannel,dest,value); + left -= count; + } + } + break; - case 2: - { // Mixed RLE - int left = width; - while(left > 0) { - int count = stbi__get8(s), i; - if(stbi__at_eof(s)) return stbi__errpuc("bad file", "file too short (mixed read count)"); + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); - if(count >= 128) { // Repeated - stbi_uc value[4]; + if (count >= 128) { // Repeated + stbi_uc value[4]; - if(count == 128) - count = stbi__get16be(s); - else - count -= 127; - if(count > left) - return stbi__errpuc("bad file", "scanline overrun"); + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); - if(!stbi__readval(s, packet->channel, value)) - return 0; + if (!stbi__readval(s,packet->channel,value)) + return 0; - for(i = 0; i < count; ++i, dest += 4) - stbi__copyval(packet->channel, dest, value); - } else { // Raw - ++count; - if(count > left) return stbi__errpuc("bad file", "scanline overrun"); + for(i=0;ichannel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); - for(i = 0; i < count; ++i, dest += 4) - if(!stbi__readval(s, packet->channel, dest)) - return 0; - } - left -= count; - } - break; - } - } - } - } + for(i=0;ichannel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } - return result; + return result; } -static void* stbi__pic_load(stbi__context* s, int* px, int* py, int* comp, int req_comp, stbi__result_info* ri) { - stbi_uc* result; - int i, x, y, internal_comp; - STBI_NOTUSED(ri); +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); - if(!comp) comp = &internal_comp; + if (!comp) comp = &internal_comp; - for(i = 0; i < 92; ++i) - stbi__get8(s); + for (i=0; i<92; ++i) + stbi__get8(s); - x = stbi__get16be(s); - y = stbi__get16be(s); + x = stbi__get16be(s); + y = stbi__get16be(s); - if(y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); - if(x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); + if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if(stbi__at_eof(s)) return stbi__errpuc("bad file", "file too short (pic header)"); - if(!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); - stbi__get32be(s); // skip `ratio' - stbi__get16be(s); // skip `fields' - stbi__get16be(s); // skip `pad' + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' - // intermediate buffer is RGBA - result = (stbi_uc*)stbi__malloc_mad3(x, y, 4, 0); - if(!result) return stbi__errpuc("outofmem", "Out of memory"); - memset(result, 0xff, x * y * 4); + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + if (!result) return stbi__errpuc("outofmem", "Out of memory"); + memset(result, 0xff, x*y*4); - if(!stbi__pic_load_core(s, x, y, comp, result)) { - STBI_FREE(result); - result = 0; - } - *px = x; - *py = y; - if(req_comp == 0) req_comp = *comp; - result = stbi__convert_format(result, 4, req_comp, x, y); + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); - return result; + return result; } -static int stbi__pic_test(stbi__context* s) { - int r = stbi__pic_test_core(s); - stbi__rewind(s); - return r; +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; } #endif @@ -6651,519 +6552,531 @@ static int stbi__pic_test(stbi__context* s) { #ifndef STBI_NO_GIF typedef struct { - stbi__int16 prefix; - stbi_uc first; - stbi_uc suffix; + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; } stbi__gif_lzw; typedef struct { - int w, h; - stbi_uc* out; // output buffer (always 4 components) - stbi_uc* background; // The current "background" as far as a gif is concerned - stbi_uc* history; - int flags, bgindex, ratio, transparent, eflags; - stbi_uc pal[256][4]; - stbi_uc lpal[256][4]; - stbi__gif_lzw codes[8192]; - stbi_uc* color_table; - int parse, step; - int lflags; - int start_x, start_y; - int max_x, max_y; - int cur_x, cur_y; - int line_size; - int delay; + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; } stbi__gif; -static int stbi__gif_test_raw(stbi__context* s) { - int sz; - if(stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; - sz = stbi__get8(s); - if(sz != '9' && sz != '7') return 0; - if(stbi__get8(s) != 'a') return 0; - return 1; +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; } -static int stbi__gif_test(stbi__context* s) { - int r = stbi__gif_test_raw(s); - stbi__rewind(s); - return r; +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; } -static void stbi__gif_parse_colortable(stbi__context* s, stbi_uc pal[256][4], int num_entries, int transp) { - int i; - for(i = 0; i < num_entries; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - pal[i][3] = transp == i ? 0 : 255; - } +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } } -static int stbi__gif_header(stbi__context* s, stbi__gif* g, int* comp, int is_info) { - stbi_uc version; - if(stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') - return stbi__err("not GIF", "Corrupt GIF"); +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); - version = stbi__get8(s); - if(version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); - if(stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); - stbi__g_failure_reason = ""; - g->w = stbi__get16le(s); - g->h = stbi__get16le(s); - g->flags = stbi__get8(s); - g->bgindex = stbi__get8(s); - g->ratio = stbi__get8(s); - g->transparent = -1; + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; - if(g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); - if(g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large", "Very large image (corrupt?)"); + if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - if(comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments - if(is_info) return 1; + if (is_info) return 1; - if(g->flags & 0x80) - stbi__gif_parse_colortable(s, g->pal, 2 << (g->flags & 7), -1); + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); - return 1; + return 1; } -static int stbi__gif_info_raw(stbi__context* s, int* x, int* y, int* comp) { - stbi__gif* g = (stbi__gif*)stbi__malloc(sizeof(stbi__gif)); - if(!g) return stbi__err("outofmem", "Out of memory"); - if(!stbi__gif_header(s, g, comp, 1)) { - STBI_FREE(g); - stbi__rewind(s); - return 0; - } - if(x) *x = g->w; - if(y) *y = g->h; - STBI_FREE(g); - return 1; +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!g) return stbi__err("outofmem", "Out of memory"); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; } -static void stbi__out_gif_code(stbi__gif* g, stbi__uint16 code) { - stbi_uc *p, *c; - int idx; +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; - // recurse to decode the prefixes, since the linked-list is backwards, - // and working backwards through an interleaved image would be nasty - if(g->codes[code].prefix >= 0) - stbi__out_gif_code(g, g->codes[code].prefix); + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); - if(g->cur_y >= g->max_y) return; + if (g->cur_y >= g->max_y) return; - idx = g->cur_x + g->cur_y; - p = &g->out[idx]; - g->history[idx / 4] = 1; + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; - c = &g->color_table[g->codes[code].suffix * 4]; - if(c[3] > 128) { // don't render transparent pixels; - p[0] = c[2]; - p[1] = c[1]; - p[2] = c[0]; - p[3] = c[3]; - } - g->cur_x += 4; + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; - if(g->cur_x >= g->max_x) { - g->cur_x = g->start_x; - g->cur_y += g->step; + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; - while(g->cur_y >= g->max_y && g->parse > 0) { - g->step = (1 << g->parse) * g->line_size; - g->cur_y = g->start_y + (g->step >> 1); - --g->parse; - } - } + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } } -static stbi_uc* stbi__process_gif_raster(stbi__context* s, stbi__gif* g) { - stbi_uc lzw_cs; - stbi__int32 len, init_code; - stbi__uint32 first; - stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; - stbi__gif_lzw* p; +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; - lzw_cs = stbi__get8(s); - if(lzw_cs > 12) return NULL; - clear = 1 << lzw_cs; - first = 1; - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - bits = 0; - valid_bits = 0; - for(init_code = 0; init_code < clear; init_code++) { - g->codes[init_code].prefix = -1; - g->codes[init_code].first = (stbi_uc)init_code; - g->codes[init_code].suffix = (stbi_uc)init_code; - } + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } - // support no starting clear code - avail = clear + 2; - oldcode = -1; + // support no starting clear code + avail = clear+2; + oldcode = -1; - len = 0; - for(;;) { - if(valid_bits < codesize) { - if(len == 0) { - len = stbi__get8(s); // start new block - if(len == 0) - return g->out; - } - --len; - bits |= (stbi__int32)stbi__get8(s) << valid_bits; - valid_bits += 8; - } else { - stbi__int32 code = bits & codemask; - bits >>= codesize; - valid_bits -= codesize; - // @OPTIMIZE: is there some way we can accelerate the non-clear path? - if(code == clear) { // clear code - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - avail = clear + 2; - oldcode = -1; - first = 0; - } else if(code == clear + 1) { // end of stream code - stbi__skip(s, len); - while((len = stbi__get8(s)) > 0) - stbi__skip(s, len); - return g->out; - } else if(code <= avail) { - if(first) { - return stbi__errpuc("no clear code", "Corrupt GIF"); - } + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } - if(oldcode >= 0) { - p = &g->codes[avail++]; - if(avail > 8192) { - return stbi__errpuc("too many codes", "Corrupt GIF"); - } + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } - p->prefix = (stbi__int16)oldcode; - p->first = g->codes[oldcode].first; - p->suffix = (code == avail) ? p->first : g->codes[code].first; - } else if(code == avail) - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - stbi__out_gif_code(g, (stbi__uint16)code); + stbi__out_gif_code(g, (stbi__uint16) code); - if((avail & codemask) == 0 && avail <= 0x0FFF) { - codesize++; - codemask = (1 << codesize) - 1; - } + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } - oldcode = code; - } else { - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - } - } - } + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } } // this function is designed to support animated gifs, although stb_image doesn't support it // two back is the image from two frames ago, used for a very specific disposal format -static stbi_uc* stbi__gif_load_next(stbi__context* s, stbi__gif* g, int* comp, int req_comp, stbi_uc* two_back) { - int dispose; - int first_frame; - int pi; - int pcount; - STBI_NOTUSED(req_comp); +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); - // on first frame, any non-written pixels get the background colour (non-transparent) - first_frame = 0; - if(g->out == 0) { - if(!stbi__gif_header(s, g, comp, 0)) return 0; // stbi__g_failure_reason set by stbi__gif_header - if(!stbi__mad3sizes_valid(4, g->w, g->h, 0)) - return stbi__errpuc("too large", "GIF image is too large"); - pcount = g->w * g->h; - g->out = (stbi_uc*)stbi__malloc(4 * pcount); - g->background = (stbi_uc*)stbi__malloc(4 * pcount); - g->history = (stbi_uc*)stbi__malloc(pcount); - if(!g->out || !g->background || !g->history) - return stbi__errpuc("outofmem", "Out of memory"); + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); - // image is treated as "transparent" at the start - ie, nothing overwrites the current background; - // background colour is only used for pixels that are not rendered first frame, after that "background" - // color refers to the color that was there the previous frame. - memset(g->out, 0x00, 4 * pcount); - memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) - memset(g->history, 0x00, pcount); // pixels that were affected previous frame - first_frame = 1; - } else { - // second frame - how do we dispose of the previous one? - dispose = (g->eflags & 0x1C) >> 2; - pcount = g->w * g->h; + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispose of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; - if((dispose == 3) && (two_back == 0)) { - dispose = 2; // if I don't have an image to revert back to, default to the old background - } + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } - if(dispose == 3) { // use previous graphic - for(pi = 0; pi < pcount; ++pi) { - if(g->history[pi]) { - memcpy(&g->out[pi * 4], &two_back[pi * 4], 4); - } - } - } else if(dispose == 2) { - // restore what was changed last frame to background before that frame; - for(pi = 0; pi < pcount; ++pi) { - if(g->history[pi]) { - memcpy(&g->out[pi * 4], &g->background[pi * 4], 4); - } - } - } else { - // This is a non-disposal case eithe way, so just - // leave the pixels as is, and they will become the new background - // 1: do not dispose - // 0: not specified. - } + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } - // background is what out is after the undoing of the previou frame; - memcpy(g->background, g->out, 4 * g->w * g->h); - } + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } - // clear my history; - memset(g->history, 0x00, g->w * g->h); // pixels that were affected previous frame + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame - for(;;) { - int tag = stbi__get8(s); - switch(tag) { - case 0x2C: /* Image Descriptor */ - { - stbi__int32 x, y, w, h; - stbi_uc* o; + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; - x = stbi__get16le(s); - y = stbi__get16le(s); - w = stbi__get16le(s); - h = stbi__get16le(s); - if(((x + w) > (g->w)) || ((y + h) > (g->h))) - return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); - g->line_size = g->w * 4; - g->start_x = x * 4; - g->start_y = y * g->line_size; - g->max_x = g->start_x + w * 4; - g->max_y = g->start_y + h * g->line_size; - g->cur_x = g->start_x; - g->cur_y = g->start_y; + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; - // if the width of the specified rectangle is 0, that means - // we may not see *any* pixels or the image is malformed; - // to make sure this is caught, move the current y down to - // max_y (which is what out_gif_code checks). - if(w == 0) - g->cur_y = g->max_y; + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; - g->lflags = stbi__get8(s); + g->lflags = stbi__get8(s); - if(g->lflags & 0x40) { - g->step = 8 * g->line_size; // first interlaced spacing - g->parse = 3; - } else { - g->step = g->line_size; - g->parse = 0; - } + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } - if(g->lflags & 0x80) { - stbi__gif_parse_colortable(s, g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); - g->color_table = (stbi_uc*)g->lpal; - } else if(g->flags & 0x80) { - g->color_table = (stbi_uc*)g->pal; - } else - return stbi__errpuc("missing color table", "Corrupt GIF"); + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); - o = stbi__process_gif_raster(s, g); - if(!o) return NULL; + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; - // if this was the first frame, - pcount = g->w * g->h; - if(first_frame && (g->bgindex > 0)) { - // if first frame, any pixel not drawn to gets the background color - for(pi = 0; pi < pcount; ++pi) { - if(g->history[pi] == 0) { - g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; - memcpy(&g->out[pi * 4], &g->pal[g->bgindex], 4); - } - } - } + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } - return o; - } + return o; + } - case 0x21: // Comment Extension. - { - int len; - int ext = stbi__get8(s); - if(ext == 0xF9) { // Graphic Control Extension. - len = stbi__get8(s); - if(len == 4) { - g->eflags = stbi__get8(s); - g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. - // unset old transparent - if(g->transparent >= 0) { - g->pal[g->transparent][3] = 255; - } - if(g->eflags & 0x01) { - g->transparent = stbi__get8(s); - if(g->transparent >= 0) { - g->pal[g->transparent][3] = 0; - } - } else { - // don't need transparent - stbi__skip(s, 1); - g->transparent = -1; - } - } else { - stbi__skip(s, len); - break; - } - } - while((len = stbi__get8(s)) != 0) { - stbi__skip(s, len); - } - break; - } + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } - case 0x3B: // gif stream termination code - return (stbi_uc*)s; // using '1' causes warning on some compilers + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers - default: - return stbi__errpuc("unknown code", "Corrupt GIF"); - } - } + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } } -static void* stbi__load_gif_main_outofmem(stbi__gif* g, stbi_uc* out, int** delays) { - STBI_FREE(g->out); - STBI_FREE(g->history); - STBI_FREE(g->background); +static void *stbi__load_gif_main_outofmem(stbi__gif *g, stbi_uc *out, int **delays) +{ + STBI_FREE(g->out); + STBI_FREE(g->history); + STBI_FREE(g->background); - if(out) STBI_FREE(out); - if(delays && *delays) STBI_FREE(*delays); - return stbi__errpuc("outofmem", "Out of memory"); + if (out) STBI_FREE(out); + if (delays && *delays) STBI_FREE(*delays); + return stbi__errpuc("outofmem", "Out of memory"); } -static void* stbi__load_gif_main(stbi__context* s, int** delays, int* x, int* y, int* z, int* comp, int req_comp) { - if(stbi__gif_test(s)) { - int layers = 0; - stbi_uc* u = 0; - stbi_uc* out = 0; - stbi_uc* two_back = 0; - stbi__gif g; - int stride; - int out_size = 0; - int delays_size = 0; +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + int out_size = 0; + int delays_size = 0; - STBI_NOTUSED(out_size); - STBI_NOTUSED(delays_size); + STBI_NOTUSED(out_size); + STBI_NOTUSED(delays_size); - memset(&g, 0, sizeof(g)); - if(delays) { - *delays = 0; - } + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } - do { - u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); - if(u == (stbi_uc*)s) u = 0; // end of animated gif marker + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker - if(u) { - *x = g.w; - *y = g.h; - ++layers; - stride = g.w * g.h * 4; + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; - if(out) { - void* tmp = (stbi_uc*)STBI_REALLOC_SIZED(out, out_size, layers * stride); - if(!tmp) - return stbi__load_gif_main_outofmem(&g, out, delays); - else { - out = (stbi_uc*)tmp; - out_size = layers * stride; - } + if (out) { + void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); + if (!tmp) + return stbi__load_gif_main_outofmem(&g, out, delays); + else { + out = (stbi_uc*) tmp; + out_size = layers * stride; + } - if(delays) { - int* new_delays = (int*)STBI_REALLOC_SIZED(*delays, delays_size, sizeof(int) * layers); - if(!new_delays) - return stbi__load_gif_main_outofmem(&g, out, delays); - *delays = new_delays; - delays_size = layers * sizeof(int); - } - } else { - out = (stbi_uc*)stbi__malloc(layers * stride); - if(!out) - return stbi__load_gif_main_outofmem(&g, out, delays); - out_size = layers * stride; - if(delays) { - *delays = (int*)stbi__malloc(layers * sizeof(int)); - if(!*delays) - return stbi__load_gif_main_outofmem(&g, out, delays); - delays_size = layers * sizeof(int); - } - } - memcpy(out + ((layers - 1) * stride), u, stride); - if(layers >= 2) { - two_back = out - 2 * stride; - } + if (delays) { + int *new_delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); + if (!new_delays) + return stbi__load_gif_main_outofmem(&g, out, delays); + *delays = new_delays; + delays_size = layers * sizeof(int); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + if (!out) + return stbi__load_gif_main_outofmem(&g, out, delays); + out_size = layers * stride; + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + if (!*delays) + return stbi__load_gif_main_outofmem(&g, out, delays); + delays_size = layers * sizeof(int); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } - if(delays) { - (*delays)[layers - 1U] = g.delay; - } - } - } while(u != 0); + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); - // free temp buffer; - STBI_FREE(g.out); - STBI_FREE(g.history); - STBI_FREE(g.background); + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); - // do the final conversion after loading everything; - if(req_comp && req_comp != 4) - out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); - *z = layers; - return out; - } else { - return stbi__errpuc("not GIF", "Image was not as a gif type."); - } + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } } -static void* stbi__gif_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - stbi_uc* u = 0; - stbi__gif g; - memset(&g, 0, sizeof(g)); - STBI_NOTUSED(ri); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); - u = stbi__gif_load_next(s, &g, comp, req_comp, 0); - if(u == (stbi_uc*)s) u = 0; // end of animated gif marker - if(u) { - *x = g.w; - *y = g.h; + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; - // moved conversion to after successful load so that the same - // can be done for multiple frames. - if(req_comp && req_comp != 4) - u = stbi__convert_format(u, 4, req_comp, g.w, g.h); - } else if(g.out) { - // if there was an error and we allocated an image buffer, free it! - STBI_FREE(g.out); - } + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } - // free buffers needed for multiple frame loading; - STBI_FREE(g.history); - STBI_FREE(g.background); + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); - return u; + return u; } -static int stbi__gif_info(stbi__context* s, int* x, int* y, int* comp) { - return stbi__gif_info_raw(s, x, y, comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); } #endif @@ -7171,402 +7084,397 @@ static int stbi__gif_info(stbi__context* s, int* x, int* y, int* comp) { // Radiance RGBE HDR loader // originally by Nicolas Schulz #ifndef STBI_NO_HDR -static int stbi__hdr_test_core(stbi__context* s, const char* signature) { - int i; - for(i = 0; signature[i]; ++i) - if(stbi__get8(s) != signature[i]) - return 0; - stbi__rewind(s); - return 1; +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; } -static int stbi__hdr_test(stbi__context* s) { - int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); - stbi__rewind(s); - if(!r) { - r = stbi__hdr_test_core(s, "#?RGBE\n"); - stbi__rewind(s); - } - return r; +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; } -#define STBI__HDR_BUFLEN 1024 -static char* stbi__hdr_gettoken(stbi__context* z, char* buffer) { - int len = 0; - char c = '\0'; +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; - c = (char)stbi__get8(z); + c = (char) stbi__get8(z); - while(!stbi__at_eof(z) && c != '\n') { - buffer[len++] = c; - if(len == STBI__HDR_BUFLEN - 1) { - // flush to end of line - while(!stbi__at_eof(z) && stbi__get8(z) != '\n'); - break; - } - c = (char)stbi__get8(z); - } + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } - buffer[len] = 0; - return buffer; + buffer[len] = 0; + return buffer; } -static void stbi__hdr_convert(float* output, stbi_uc* input, int req_comp) { - if(input[3] != 0) { - float f1; - // Exponent - f1 = (float)ldexp(1.0f, input[3] - (int)(128 + 8)); - if(req_comp <= 2) - output[0] = (input[0] + input[1] + input[2]) * f1 / 3; - else { - output[0] = input[0] * f1; - output[1] = input[1] * f1; - output[2] = input[2] * f1; - } - if(req_comp == 2) output[1] = 1; - if(req_comp == 4) output[3] = 1; - } else { - switch(req_comp) { - case 4: - output[3] = 1; /* fallthrough */ - case 3: - output[0] = output[1] = output[2] = 0; - break; - case 2: - output[1] = 1; /* fallthrough */ - case 1: - output[0] = 0; - break; - } - } +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } } -static float* stbi__hdr_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - char buffer[STBI__HDR_BUFLEN]; - char* token; - int valid = 0; - int width, height; - stbi_uc* scanline; - float* hdr_data; - int len; - unsigned char count, value; - int i, j, k, c1, c2, z; - const char* headerToken; - STBI_NOTUSED(ri); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); - // Check identifier - headerToken = stbi__hdr_gettoken(s, buffer); - if(strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) - return stbi__errpf("not HDR", "Corrupt HDR image"); + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); - // Parse header - for(;;) { - token = stbi__hdr_gettoken(s, buffer); - if(token[0] == 0) break; - if(strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } - if(!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); - // Parse width and height - // can't use sscanf() if we're not using stdio! - token = stbi__hdr_gettoken(s, buffer); - if(strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - height = (int)strtol(token, &token, 10); - while(*token == ' ') ++token; - if(strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - width = (int)strtol(token, NULL, 10); + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); - if(height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large", "Very large image (corrupt?)"); - if(width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large", "Very large image (corrupt?)"); + if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); - *x = width; - *y = height; + *x = width; + *y = height; - if(comp) *comp = 3; - if(req_comp == 0) req_comp = 3; + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; - if(!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) - return stbi__errpf("too large", "HDR image is too large"); + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); - // Read data - hdr_data = (float*)stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); - if(!hdr_data) - return stbi__errpf("outofmem", "Out of memory"); + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); - // Load image data - // image data is stored as some number of sca - if(width < 8 || width >= 32768) { - // Read flat data - for(j = 0; j < height; ++j) { - for(i = 0; i < width; ++i) { - stbi_uc rgbe[4]; - main_decode_loop: - stbi__getn(s, rgbe, 4); - stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); - } - } - } else { - // Read RLE-encoded data - scanline = NULL; + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; - for(j = 0; j < height; ++j) { - c1 = stbi__get8(s); - c2 = stbi__get8(s); - len = stbi__get8(s); - if(c1 != 2 || c2 != 2 || (len & 0x80)) { - // not run-length encoded, so we have to actually use THIS data as a decoded - // pixel (note this can't be a valid pixel--one of RGB must be >= 128) - stbi_uc rgbe[4]; - rgbe[0] = (stbi_uc)c1; - rgbe[1] = (stbi_uc)c2; - rgbe[2] = (stbi_uc)len; - rgbe[3] = (stbi_uc)stbi__get8(s); - stbi__hdr_convert(hdr_data, rgbe, req_comp); - i = 1; - j = 0; - STBI_FREE(scanline); - goto main_decode_loop; // yes, this makes no sense - } - len <<= 8; - len |= stbi__get8(s); - if(len != width) { - STBI_FREE(hdr_data); - STBI_FREE(scanline); - return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); - } - if(scanline == NULL) { - scanline = (stbi_uc*)stbi__malloc_mad2(width, 4, 0); - if(!scanline) { - STBI_FREE(hdr_data); - return stbi__errpf("outofmem", "Out of memory"); - } - } + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } - for(k = 0; k < 4; ++k) { - int nleft; - i = 0; - while((nleft = width - i) > 0) { - count = stbi__get8(s); - if(count > 128) { - // Run - value = stbi__get8(s); - count -= 128; - if((count == 0) || (count > nleft)) { - STBI_FREE(hdr_data); - STBI_FREE(scanline); - return stbi__errpf("corrupt", "bad RLE data in HDR"); - } - for(z = 0; z < count; ++z) - scanline[i++ * 4 + k] = value; - } else { - // Dump - if((count == 0) || (count > nleft)) { - STBI_FREE(hdr_data); - STBI_FREE(scanline); - return stbi__errpf("corrupt", "bad RLE data in HDR"); - } - for(z = 0; z < count; ++z) - scanline[i++ * 4 + k] = stbi__get8(s); - } - } - } - for(i = 0; i < width; ++i) - stbi__hdr_convert(hdr_data + (j * width + i) * req_comp, scanline + i * 4, req_comp); - } - if(scanline) - STBI_FREE(scanline); - } + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } - return hdr_data; + return hdr_data; } -static int stbi__hdr_info(stbi__context* s, int* x, int* y, int* comp) { - char buffer[STBI__HDR_BUFLEN]; - char* token; - int valid = 0; - int dummy; +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; - if(!x) x = &dummy; - if(!y) y = &dummy; - if(!comp) comp = &dummy; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; - if(stbi__hdr_test(s) == 0) { - stbi__rewind(s); - return 0; - } + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } - for(;;) { - token = stbi__hdr_gettoken(s, buffer); - if(token[0] == 0) break; - if(strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } - if(!valid) { - stbi__rewind(s); - return 0; - } - token = stbi__hdr_gettoken(s, buffer); - if(strncmp(token, "-Y ", 3)) { - stbi__rewind(s); - return 0; - } - token += 3; - *y = (int)strtol(token, &token, 10); - while(*token == ' ') ++token; - if(strncmp(token, "+X ", 3)) { - stbi__rewind(s); - return 0; - } - token += 3; - *x = (int)strtol(token, NULL, 10); - *comp = 3; - return 1; + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; } #endif // STBI_NO_HDR #ifndef STBI_NO_BMP -static int stbi__bmp_info(stbi__context* s, int* x, int* y, int* comp) { - void* p; - stbi__bmp_data info; +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; - info.all_a = 255; - p = stbi__bmp_parse_header(s, &info); - if(p == NULL) { - stbi__rewind(s); - return 0; - } - if(x) *x = s->img_x; - if(y) *y = s->img_y; - if(comp) { - if(info.bpp == 24 && info.ma == 0xff000000) - *comp = 3; - else - *comp = info.ma ? 4 : 3; - } - return 1; + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + if (p == NULL) { + stbi__rewind( s ); + return 0; + } + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; } #endif #ifndef STBI_NO_PSD -static int stbi__psd_info(stbi__context* s, int* x, int* y, int* comp) { - int channelCount, dummy, depth; - if(!x) x = &dummy; - if(!y) y = &dummy; - if(!comp) comp = &dummy; - if(stbi__get32be(s) != 0x38425053) { - stbi__rewind(s); - return 0; - } - if(stbi__get16be(s) != 1) { - stbi__rewind(s); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if(channelCount < 0 || channelCount > 16) { - stbi__rewind(s); - return 0; - } - *y = stbi__get32be(s); - *x = stbi__get32be(s); - depth = stbi__get16be(s); - if(depth != 8 && depth != 16) { - stbi__rewind(s); - return 0; - } - if(stbi__get16be(s) != 3) { - stbi__rewind(s); - return 0; - } - *comp = 4; - return 1; +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; } -static int stbi__psd_is16(stbi__context* s) { - int channelCount, depth; - if(stbi__get32be(s) != 0x38425053) { - stbi__rewind(s); - return 0; - } - if(stbi__get16be(s) != 1) { - stbi__rewind(s); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if(channelCount < 0 || channelCount > 16) { - stbi__rewind(s); - return 0; - } - STBI_NOTUSED(stbi__get32be(s)); - STBI_NOTUSED(stbi__get32be(s)); - depth = stbi__get16be(s); - if(depth != 16) { - stbi__rewind(s); - return 0; - } - return 1; +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + STBI_NOTUSED(stbi__get32be(s)); + STBI_NOTUSED(stbi__get32be(s)); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; } #endif #ifndef STBI_NO_PIC -static int stbi__pic_info(stbi__context* s, int* x, int* y, int* comp) { - int act_comp = 0, num_packets = 0, chained, dummy; - stbi__pic_packet packets[10]; +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; - if(!x) x = &dummy; - if(!y) y = &dummy; - if(!comp) comp = &dummy; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; - if(!stbi__pic_is4(s, "\x53\x80\xF6\x34")) { - stbi__rewind(s); - return 0; - } + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } - stbi__skip(s, 88); + stbi__skip(s, 88); - *x = stbi__get16be(s); - *y = stbi__get16be(s); - if(stbi__at_eof(s)) { - stbi__rewind(s); - return 0; - } - if((*x) != 0 && (1 << 28) / (*x) < (*y)) { - stbi__rewind(s); - return 0; - } + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } - stbi__skip(s, 8); + stbi__skip(s, 8); - do { - stbi__pic_packet* packet; + do { + stbi__pic_packet *packet; - if(num_packets == sizeof(packets) / sizeof(packets[0])) - return 0; + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; - packet = &packets[num_packets++]; - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); - act_comp |= packet->channel; + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; - if(stbi__at_eof(s)) { - stbi__rewind(s); - return 0; - } - if(packet->size != 8) { - stbi__rewind(s); - return 0; - } - } while(chained); + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); - *comp = (act_comp & 0x10 ? 4 : 3); + *comp = (act_comp & 0x10 ? 4 : 3); - return 1; + return 1; } #endif @@ -7583,254 +7491,272 @@ static int stbi__pic_info(stbi__context* s, int* x, int* y, int* comp) { #ifndef STBI_NO_PNM -static int stbi__pnm_test(stbi__context* s) { - char p, t; - p = (char)stbi__get8(s); - t = (char)stbi__get8(s); - if(p != 'P' || (t != '5' && t != '6')) { - stbi__rewind(s); - return 0; - } - return 1; +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; } -static void* stbi__pnm_load(stbi__context* s, int* x, int* y, int* comp, int req_comp, stbi__result_info* ri) { - stbi_uc* out; - STBI_NOTUSED(ri); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); - ri->bits_per_channel = stbi__pnm_info(s, (int*)&s->img_x, (int*)&s->img_y, (int*)&s->img_n); - if(ri->bits_per_channel == 0) - return 0; + ri->bits_per_channel = stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n); + if (ri->bits_per_channel == 0) + return 0; - if(s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); - if(s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large", "Very large image (corrupt?)"); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - *x = s->img_x; - *y = s->img_y; - if(comp) *comp = s->img_n; + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; - if(!stbi__mad4sizes_valid(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0)) - return stbi__errpuc("too large", "PNM too large"); + if (!stbi__mad4sizes_valid(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0)) + return stbi__errpuc("too large", "PNM too large"); - out = (stbi_uc*)stbi__malloc_mad4(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0); - if(!out) return stbi__errpuc("outofmem", "Out of memory"); - if(!stbi__getn(s, out, s->img_n * s->img_x * s->img_y * (ri->bits_per_channel / 8))) { - STBI_FREE(out); - return stbi__errpuc("bad PNM", "PNM file truncated"); - } + out = (stbi_uc *) stbi__malloc_mad4(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (!stbi__getn(s, out, s->img_n * s->img_x * s->img_y * (ri->bits_per_channel / 8))) { + STBI_FREE(out); + return stbi__errpuc("bad PNM", "PNM file truncated"); + } - if(req_comp && req_comp != s->img_n) { - if(ri->bits_per_channel == 16) { - out = (stbi_uc*)stbi__convert_format16((stbi__uint16*)out, s->img_n, req_comp, s->img_x, s->img_y); - } else { - out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); - } - if(out == NULL) return out; // stbi__convert_format frees input on failure - } - return out; + if (req_comp && req_comp != s->img_n) { + if (ri->bits_per_channel == 16) { + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, s->img_n, req_comp, s->img_x, s->img_y); + } else { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + } + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; } -static int stbi__pnm_isspace(char c) { - return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; } -static void stbi__pnm_skip_whitespace(stbi__context* s, char* c) { - for(;;) { - while(!stbi__at_eof(s) && stbi__pnm_isspace(*c)) - *c = (char)stbi__get8(s); +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); - if(stbi__at_eof(s) || *c != '#') - break; + if (stbi__at_eof(s) || *c != '#') + break; - while(!stbi__at_eof(s) && *c != '\n' && *c != '\r') - *c = (char)stbi__get8(s); - } + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } } -static int stbi__pnm_isdigit(char c) { - return c >= '0' && c <= '9'; +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; } -static int stbi__pnm_getinteger(stbi__context* s, char* c) { - int value = 0; +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; - while(!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { - value = value * 10 + (*c - '0'); - *c = (char)stbi__get8(s); - if((value > 214748364) || (value == 214748364 && *c > '7')) - return stbi__err("integer parse overflow", "Parsing an integer in the PPM header overflowed a 32-bit int"); - } + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + if((value > 214748364) || (value == 214748364 && *c > '7')) + return stbi__err("integer parse overflow", "Parsing an integer in the PPM header overflowed a 32-bit int"); + } - return value; + return value; } -static int stbi__pnm_info(stbi__context* s, int* x, int* y, int* comp) { - int maxv, dummy; - char c, p, t; +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; - if(!x) x = &dummy; - if(!y) y = &dummy; - if(!comp) comp = &dummy; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; - stbi__rewind(s); + stbi__rewind(s); - // Get identifier - p = (char)stbi__get8(s); - t = (char)stbi__get8(s); - if(p != 'P' || (t != '5' && t != '6')) { - stbi__rewind(s); - return 0; - } + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } - *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm - c = (char)stbi__get8(s); - stbi__pnm_skip_whitespace(s, &c); + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); - *x = stbi__pnm_getinteger(s, &c); // read width - if(*x == 0) - return stbi__err("invalid width", "PPM image header had zero or overflowing width"); - stbi__pnm_skip_whitespace(s, &c); + *x = stbi__pnm_getinteger(s, &c); // read width + if(*x == 0) + return stbi__err("invalid width", "PPM image header had zero or overflowing width"); + stbi__pnm_skip_whitespace(s, &c); - *y = stbi__pnm_getinteger(s, &c); // read height - if(*y == 0) - return stbi__err("invalid width", "PPM image header had zero or overflowing width"); - stbi__pnm_skip_whitespace(s, &c); + *y = stbi__pnm_getinteger(s, &c); // read height + if (*y == 0) + return stbi__err("invalid width", "PPM image header had zero or overflowing width"); + stbi__pnm_skip_whitespace(s, &c); - maxv = stbi__pnm_getinteger(s, &c); // read max value - if(maxv > 65535) - return stbi__err("max value > 65535", "PPM image supports only 8-bit and 16-bit images"); - else if(maxv > 255) - return 16; - else - return 8; + maxv = stbi__pnm_getinteger(s, &c); // read max value + if (maxv > 65535) + return stbi__err("max value > 65535", "PPM image supports only 8-bit and 16-bit images"); + else if (maxv > 255) + return 16; + else + return 8; } -static int stbi__pnm_is16(stbi__context* s) { - if(stbi__pnm_info(s, NULL, NULL, NULL) == 16) - return 1; - return 0; +static int stbi__pnm_is16(stbi__context *s) +{ + if (stbi__pnm_info(s, NULL, NULL, NULL) == 16) + return 1; + return 0; } #endif -static int stbi__info_main(stbi__context* s, int* x, int* y, int* comp) { -#ifndef STBI_NO_JPEG - if(stbi__jpeg_info(s, x, y, comp)) return 1; -#endif +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_PNG - if(stbi__png_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_GIF - if(stbi__gif_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_BMP - if(stbi__bmp_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_PSD - if(stbi__psd_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_PIC - if(stbi__pic_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_PNM - if(stbi__pnm_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif -#ifndef STBI_NO_HDR - if(stbi__hdr_info(s, x, y, comp)) return 1; -#endif + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif -// test tga last because it's a crappy test! -#ifndef STBI_NO_TGA - if(stbi__tga_info(s, x, y, comp)) - return 1; -#endif - return stbi__err("unknown image type", "Image not of any known type, or corrupt"); + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); } -static int stbi__is_16_main(stbi__context* s) { -#ifndef STBI_NO_PNG - if(stbi__png_is16(s)) return 1; -#endif +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif -#ifndef STBI_NO_PSD - if(stbi__psd_is16(s)) return 1; -#endif + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif -#ifndef STBI_NO_PNM - if(stbi__pnm_is16(s)) return 1; -#endif - return 0; + #ifndef STBI_NO_PNM + if (stbi__pnm_is16(s)) return 1; + #endif + return 0; } #ifndef STBI_NO_STDIO -STBIDEF int stbi_info(char const* filename, int* x, int* y, int* comp) { - FILE* f = stbi__fopen(filename, "rb"); - int result; - if(!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_info_from_file(f, x, y, comp); - fclose(f); - return result; +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; } -STBIDEF int stbi_info_from_file(FILE* f, int* x, int* y, int* comp) { - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__info_main(&s, x, y, comp); - fseek(f, pos, SEEK_SET); - return r; +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; } -STBIDEF int stbi_is_16_bit(char const* filename) { - FILE* f = stbi__fopen(filename, "rb"); - int result; - if(!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_is_16_bit_from_file(f); - fclose(f); - return result; +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; } -STBIDEF int stbi_is_16_bit_from_file(FILE* f) { - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__is_16_main(&s); - fseek(f, pos, SEEK_SET); - return r; +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; } #endif // !STBI_NO_STDIO -STBIDEF int stbi_info_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp) { - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__info_main(&s, x, y, comp); +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); } -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const* c, void* user, int* x, int* y, int* comp) { - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)c, user); - return stbi__info_main(&s, x, y, comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); } -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const* buffer, int len) { - stbi__context s; - stbi__start_mem(&s, buffer, len); - return stbi__is_16_main(&s); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); } -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const* c, void* user) { - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks*)c, user); - return stbi__is_16_main(&s); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); } #endif // STB_IMAGE_IMPLEMENTATION @@ -7841,146 +7767,146 @@ STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const* c, void* user 2.19 (2018-02-11) fix warning 2.18 (2018-01-30) fix warnings 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug - 1-bit BMP - *_is_16_bit api - avoid warnings + 1-bit BMP + *_is_16_bit api + avoid warnings 2.16 (2017-07-23) all functions have 16-bit variants; - STBI_NO_STDIO works again; - compilation fixes; - fix rounding in unpremultiply; - optimize vertical flip; - disable raw_len validation; - documentation fixes + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; - warning fixes; disable run-time SSE detection on gcc; - uniform handling of optional "return" values; - thread-safe initialization of zlib tables + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes 2.11 (2016-04-02) allocate large structures on the stack - remove white matting for transparent PSD - fix reported channel count for PNG & BMP - re-enable SSE2 in non-gcc 64-bit - support RGB-formatted JPEG - read 16-bit PNGs (only as 8-bit) + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED 2.09 (2016-01-16) allow comments in PNM files - 16-bit-per-pixel TGA (not bit-per-component) - info() for TGA could break due to .hdr handling - info() for BMP to shares code instead of sloppy parse - can use STBI_REALLOC_SIZED if allocator doesn't support realloc - code cleanup + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA 2.07 (2015-09-13) fix compiler warnings - partial animated GIF support - limited 16-bpc PSD support - #ifdef unused functions - bug with < 92 byte PIC,PNM,HDR,TGA + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit 2.03 (2015-04-12) extra corruption checking (mmozeiko) - stbi_set_flip_vertically_on_load (nguillemot) - fix NEON support; fix mingw support + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support 2.02 (2015-01-19) fix incorrect assert, fix warning 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) - progressive JPEG (stb) - PGM/PPM support (Ken Miller) - STBI_MALLOC,STBI_REALLOC,STBI_FREE - GIF bugfix -- seemingly never worked - STBI_NO_*, STBI_ONLY_* + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* 1.48 (2014-12-14) fix incorrectly-named assert() 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) - optimize PNG (ryg) - fix bug in interlaced PNG with user-specified channel count (stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) 1.46 (2014-08-26) - fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG 1.45 (2014-08-16) - fix MSVC-ARM internal compiler error by wrapping malloc + fix MSVC-ARM internal compiler error by wrapping malloc 1.44 (2014-08-07) - various warning fixes from Ronny Chevalier + various warning fixes from Ronny Chevalier 1.43 (2014-07-15) - fix MSVC-only compiler problem in code changed in 1.42 + fix MSVC-only compiler problem in code changed in 1.42 1.42 (2014-07-09) - don't define _CRT_SECURE_NO_WARNINGS (affects user code) - fixes to stbi__cleanup_jpeg path - added STBI_ASSERT to avoid requiring assert.h + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h 1.41 (2014-06-25) - fix search&replace from 1.36 that messed up comments/error messages + fix search&replace from 1.36 that messed up comments/error messages 1.40 (2014-06-22) - fix gcc struct-initialization warning + fix gcc struct-initialization warning 1.39 (2014-06-15) - fix to TGA optimization when req_comp != number of components in TGA; - fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) - add support for BMP version 5 (more ignored fields) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) 1.38 (2014-06-06) - suppress MSVC warnings on integer casts truncating values - fix accidental rename of 'skip' field of I/O + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O 1.37 (2014-06-04) - remove duplicate typedef + remove duplicate typedef 1.36 (2014-06-03) - convert to header file single-file library - if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL 1.35 (2014-05-27) - various warnings - fix broken STBI_SIMD path - fix bug where stbi_load_from_file no longer left file pointer in correct place - fix broken non-easy path for 32-bit BMP (possibly never used) - TGA optimization by Arseny Kapoulkine + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine 1.34 (unknown) - use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case 1.33 (2011-07-14) - make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements 1.32 (2011-07-13) - support for "info" function for all supported filetypes (SpartanJ) + support for "info" function for all supported filetypes (SpartanJ) 1.31 (2011-06-20) - a few more leak fixes, bug in PNG handling (SpartanJ) + a few more leak fixes, bug in PNG handling (SpartanJ) 1.30 (2011-06-11) - added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) - removed deprecated format-specific test/load functions - removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway - error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) - fix inefficiency in decoding 32-bit BMP (David Woo) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) 1.29 (2010-08-16) - various warning fixes from Aurelien Pocheville + various warning fixes from Aurelien Pocheville 1.28 (2010-08-01) - fix bug in GIF palette transparency (SpartanJ) + fix bug in GIF palette transparency (SpartanJ) 1.27 (2010-08-01) - cast-to-stbi_uc to fix warnings + cast-to-stbi_uc to fix warnings 1.26 (2010-07-24) - fix bug in file buffering for PNG reported by SpartanJ + fix bug in file buffering for PNG reported by SpartanJ 1.25 (2010-07-17) - refix trans_data warning (Won Chun) + refix trans_data warning (Won Chun) 1.24 (2010-07-12) - perf improvements reading from files on platforms with lock-heavy fgetc() - minor perf improvements for jpeg - deprecated type-specific functions so we'll get feedback if they're needed - attempt to fix trans_data warning (Won Chun) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) 1.23 fixed bug in iPhone support 1.22 (2010-07-10) - removed image *writing* support - stbi_info support from Jetro Lauha - GIF support from Jean-Marc Lienher - iPhone PNG-extensions from James Brown - warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) 1.21 fix use of 'stbi_uc' in header (reported by jon blow) 1.20 added support for Softimage PIC, by Tom Seddon 1.19 bug in interlaced PNG corruption check (found by ryg) 1.18 (2008-08-02) - fix a threading bug (local mutable static) + fix a threading bug (local mutable static) 1.17 support interlaced PNG 1.16 major bugfix - stbi__convert_format converted one too many pixels 1.15 initialize some fields for thread safety 1.14 fix threadsafe conversion bug - header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) 1.13 threadsafe 1.12 const qualifiers in the API 1.11 Support installable IDCT, colorspace conversion routines 1.10 Fixes for 64-bit (don't use "unsigned long") - optimized upsampling by Fabian "ryg" Giesen + optimized upsampling by Fabian "ryg" Giesen 1.09 Fix format-conversion for PSD code (bad global variables!) 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz 1.07 attempt to fix C++ warning/errors again @@ -7990,7 +7916,7 @@ STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const* c, void* user 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR 1.02 support for (subset of) HDR files, float interface for preferred access to them 1.01 fix bug: possible bug in handling right-side up bmps... not sure - fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all 1.00 interface to zlib that skips zlib header 0.99 correct handling of alpha in palette 0.98 TGA loader by lonesock; dynamically add loaders (untested) @@ -8013,11 +7939,12 @@ STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const* c, void* user 0.53 fix bug in png 3->4; speedup png decoding 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments 0.51 obey req_comp requests, 1-component jpegs return as 1-component, - on 'test' only check type, not whether we support this variant + on 'test' only check type, not whether we support this variant 0.50 (2006-11-19) - first released version + first released version */ + /* ------------------------------------------------------------------------------ This software is available under 2 licenses -- choose whichever you prefer. diff --git a/include/Mw/BaseTypes.h b/include/Mw/BaseTypes.h index a89e5551c..313215eca 100644 --- a/include/Mw/BaseTypes.h +++ b/include/Mw/BaseTypes.h @@ -49,9 +49,6 @@ typedef __int8 MwI8; typedef unsigned __int8 MwU8; #define MW_OTHER_TYPES_DEFINED -#elif defined(MW_16) -typedef long long MwI64; -typedef unsigned long long MwU64; #else /* out of hope */ typedef long MwI64; @@ -61,16 +58,6 @@ typedef unsigned long MwU64; #ifdef MW_OTHER_TYPES_DEFINED #undef MW_OTHER_TYPES_DEFINED #else -#ifdef MW_16 -typedef long MwI32; -typedef unsigned long MwU32; - -typedef int MwI16; -typedef unsigned int MwU16; - -typedef signed char MwI8; -typedef unsigned char MwU8; -#else typedef int MwI32; typedef unsigned int MwU32; @@ -80,7 +67,6 @@ typedef unsigned short MwU16; typedef signed char MwI8; typedef unsigned char MwU8; #endif -#endif typedef MwI64 MwOffset; diff --git a/include/Mw/Constants.h b/include/Mw/Constants.h index 514ec21f1..15853ff7b 100644 --- a/include/Mw/Constants.h +++ b/include/Mw/Constants.h @@ -35,11 +35,7 @@ enum MwALIGNMENT { /*! * @brief Default */ -#ifdef MW_16 -#define MwDEFAULT 0x0ffff -#else #define MwDEFAULT 0x0fffffff -#endif /*! * @brief Directory entry type diff --git a/include/Mw/Dialog/ColorPicker.h b/include/Mw/Dialog/ColorPicker.h index fdbca92cd..b143fdf50 100644 --- a/include/Mw/Dialog/ColorPicker.h +++ b/include/Mw/Dialog/ColorPicker.h @@ -12,9 +12,6 @@ extern "C" { #endif -#ifdef MW_16 -#error Color Picker Widget is not avaliable on 16-bit platforms -#else /*! * @brief Creates a color picker * @param handle Widget @@ -22,7 +19,6 @@ extern "C" { * @return Widget */ MWDECL MwWidget MWAPI MwColorPicker(MwWidget handle, const char* title); -#endif #ifdef __cplusplus } diff --git a/include/Mw/LowLevel.h b/include/Mw/LowLevel.h index 07370b5c5..6647672d9 100644 --- a/include/Mw/LowLevel.h +++ b/include/Mw/LowLevel.h @@ -343,7 +343,6 @@ MWDECL void (*MwLLRaise)(MwLL handle); MWDECL void (*MwLLClip)(MwLL handle, MwRect* rect); /* font renderer */ -#ifndef MW_16 MWDECL void MwFLSetup(void); #ifdef USE_FREETYPE2 @@ -363,12 +362,11 @@ MWDECL int (*MwFLTextHeight)(MwFLFont ttf, int count); MWDECL int (*MwFLTextHeightWithText)(MwFLFont ttf, const char* text); MWDECL void* (*MwFLFontLoad)(unsigned char* data, unsigned int size, int px); MWDECL void (*MwFLFontFree)(void* handle); -#endif -#if defined(_WIN32) || defined(__WINDOWS__) -MWDECL void* MwLL_winmmLib; -MWDECL long(WINAPI* MwLL_PFN_timeGetTime)(void); -MWDECL unsigned int(WINAPI* MwLL_PFN_timeBeginPeriod)(unsigned int period); +#ifdef _WIN32 +MWDECL void *MwLL_winmmLib; +MWDECL long (__stdcall* MwLL_PFN_timeGetTime)(void); +MWDECL unsigned int (__stdcall* MwLL_PFN_timeBeginPeriod)(unsigned int period); #endif #ifdef __cplusplus diff --git a/include/Mw/LowLevel/GDI.h b/include/Mw/LowLevel/GDI.h index 568e55529..d2e247350 100644 --- a/include/Mw/LowLevel/GDI.h +++ b/include/Mw/LowLevel/GDI.h @@ -42,7 +42,6 @@ struct _MwLLGDIPixmap { RGBQUAD* quad; HBITMAP hBitmap; - HDC hBitmapMem; HBITMAP hMask; HBITMAP hMask2; }; diff --git a/include/Mw/MachDep.h b/include/Mw/MachDep.h index fe5debffc..4c98b24da 100644 --- a/include/Mw/MachDep.h +++ b/include/Mw/MachDep.h @@ -20,19 +20,12 @@ #include #define MW_HAS_WCHAR #endif -#if defined(_WIN32) || defined(__WINDOWS__) +#ifdef _WIN32 #include #ifdef _MILSKO #include -#if defined(__WINDOWS__) -#include -#define GetSysColorBrush(x) CreateSolidBrush(GetSysColor(x)) -#endif - -#ifndef HALFTONE -#define HALFTONE 4 -#endif +#include #ifndef GWLP_USERDATA #define GWLP_USERDATA GWL_USERDATA #define GWLP_WNDPROC GWL_WNDPROC @@ -43,9 +36,6 @@ #define SetClassLongPtr SetClassLong #define GetClassLongPtr GetClassLong #endif -#ifndef GWL_USERDATA -#define GWL_USERDATA (-21) -#endif #ifndef WM_MOUSEWHEEL #define WM_MOUSEWHEEL 0x020a #define GET_WHEEL_DELTA_WPARAM(x) ((short)HIWORD(x)) @@ -100,9 +90,9 @@ #endif /* Windows */ -#if defined(_MILSKO) && defined(_MILSKO_BUILD) && defined(_WIN32) || defined(__WINDOWS__) +#if defined(_MILSKO) && defined(_MILSKO_BUILD) && defined(_WIN32) #define MWDECL extern __declspec(dllexport) -#elif defined(_WIN32) || defined(__WINDOWS__) +#elif defined(_WIN32) #define MWDECL extern __declspec(dllimport) /* GCC/Clang */ /* First check if we have __has_attribute and can check for the existence of visibility */ @@ -122,7 +112,7 @@ #define MWDECL extern #endif -#if defined(_WIN32) || defined(__WINDOWS__) +#if defined(_WIN32) #define MWAPI __cdecl #else #define MWAPI diff --git a/include/Mw/Milsko.h b/include/Mw/Milsko.h index 4f8070027..9860990ca 100644 --- a/include/Mw/Milsko.h +++ b/include/Mw/Milsko.h @@ -31,9 +31,7 @@ #include #include #include -#ifndef __WINDOWS__ #include -#endif #include #include diff --git a/include/Mw/Widget/OpenGL.h b/include/Mw/Widget/OpenGL.h index 559450585..3f7a0c451 100644 --- a/include/Mw/Widget/OpenGL.h +++ b/include/Mw/Widget/OpenGL.h @@ -10,7 +10,7 @@ #include #if !defined(MW_OPENGL_NO_INCLUDE) && !defined(__gl_h_) -#if defined(_WIN32) || defined(__WINDOWS__) +#ifdef _WIN32 #include #elif defined(__APPLE__) #else diff --git a/src/abstract/directory.c b/src/abstract/directory.c index 122f423af..ddf10e15f 100644 --- a/src/abstract/directory.c +++ b/src/abstract/directory.c @@ -1,16 +1,11 @@ #include -#if defined(_WIN32) +#ifdef _WIN32 typedef struct dir { HANDLE hFind; WIN32_FIND_DATA ffd; int next; } dir_t; -#elif defined(__WINDOWS__) -typedef struct dir { - struct find_t result; - int next; -} dir_t; #elif defined(CLASSIC_MAC_OS) typedef struct dir { int dummy; @@ -24,8 +19,8 @@ typedef struct dir { void* MwDirectoryOpen(const char* path) { dir_t* dir = malloc(sizeof(*dir)); - char* p; - if(!dir) { + char * p; + if(!dir) { printf("Out Of Memory\n"); return NULL; } @@ -44,22 +39,6 @@ void* MwDirectoryOpen(const char* path) { } free(p); dir->next = 1; -#elif defined(__WINDOWS__) - p = malloc(strlen(path) + 2 + 1); - strcpy(p, path); - if(strchr(path, '/') != NULL) { - strcat(p, "/"); - } else { - strcat(p, "\\"); - } - strcat(p, "*.*"); - if(_dos_findfirst(p, _A_NORMAL, &dir->result) != 0) { - free(p); - free(dir); - return NULL; - } - free(p); - dir->next = 1; #elif defined(CLASSIC_MAC_OS) /* todo */ #else @@ -76,10 +55,8 @@ void* MwDirectoryOpen(const char* path) { void MwDirectoryClose(void* handle) { dir_t* dir = handle; -#if defined(_WIN32) +#ifdef _WIN32 FindClose(dir->hFind); -#elif defined(__WINDOWS__) - /* nothing? */ #elif defined(CLASSIC_MAC_OS) /* todo */ #else @@ -92,9 +69,20 @@ void MwDirectoryClose(void* handle) { MwDirectoryEntry* MwDirectoryRead(void* handle) { dir_t* dir = handle; MwDirectoryEntry* entry = malloc(sizeof(*entry)); -#if defined(_WIN32) - ULARGE_INTEGER* l; - +#ifdef _WIN32 + ULARGE_INTEGER* l; +#elif defined(CLASSIC_MAC_OS) +#else + struct dirent* d; + struct stat s; + char* p; +#endif + + if(!entry) { + printf("Out Of Memory\n"); + return NULL; + } +#ifdef _WIN32 if(!dir->next) return NULL; entry->name = MwStringDuplicate(dir->ffd.cFileName); @@ -115,21 +103,6 @@ MwDirectoryEntry* MwDirectoryRead(void* handle) { entry->mtime = l->QuadPart / 10000000 - 11644473600; dir->next = FindNextFile(dir->hFind, &dir->ffd); -#elif defined(__WINDOWS__) - if(!dir->next) return NULL; - - entry->name = MwStringDuplicate(dir->result.name); - if(dir->result.attrib & _A_SUBDIR) { - entry->type = MwDIRECTORY_DIRECTORY; - } else { - entry->type = MwDIRECTORY_FILE; - } - - entry->size = dir->result.size; - - entry->mtime = MwDosDateTimeToUnix(dir->result.wr_date, dir->result.wr_time); - - dir->next = (_dos_findnext(&dir->result) == 0); #elif defined(CLASSIC_MAC_OS) /* todo */ #else @@ -165,7 +138,7 @@ void MwDirectoryFreeEntry(MwDirectoryEntry* entry) { } char* MwDirectoryCurrent(void) { -#if defined(_WIN32) || defined(__WINDOWS__) +#ifdef _WIN32 int len = GetCurrentDirectory(0, NULL); char* out = malloc(len); @@ -179,7 +152,7 @@ char* MwDirectoryCurrent(void) { #endif } -#if defined(_WIN32) || defined(__WINDOWS__) +#ifdef _WIN32 #define DIRSEP '\\' #else #define DIRSEP '/' diff --git a/src/abstract/dynamic.c b/src/abstract/dynamic.c index e1cd393f5..58bc8312d 100644 --- a/src/abstract/dynamic.c +++ b/src/abstract/dynamic.c @@ -1,6 +1,6 @@ #include -#if defined(_WIN32) || defined(__WINDOWS__) +#if defined(_WIN32) void* MwDynamicOpen(const char* path) { return LoadLibrary(path); } diff --git a/src/abstract/time.c b/src/abstract/time.c index 7589513c9..892cd3228 100644 --- a/src/abstract/time.c +++ b/src/abstract/time.c @@ -1,6 +1,6 @@ #include -#if defined(_WIN32) || defined(__WINDOWS__) +#if defined(_WIN32) long MwTimeGetTick(void) { return MwLL_PFN_timeGetTime(); } diff --git a/src/backend/gdi.c b/src/backend/gdi.c index bc0990dd0..eace1d382 100644 --- a/src/backend/gdi.c +++ b/src/backend/gdi.c @@ -10,7 +10,6 @@ typedef struct userdata { int max_set; } userdata_t; -#ifndef __WINDOWS__ static struct symtbl { void* lib_dwmapi; void* shell32lib; @@ -23,6 +22,8 @@ static struct symtbl { void (*DragFinish)(HDROP hDrop); } wsymtbl; +static int is_plgblt_reliable = 0; + #define DwmSetWindowAttribute wsymtbl.DwmSetWindowAttribute /* Dark theme detection for classic Windows: check if the user has set their theme to be dark. */ @@ -69,15 +70,6 @@ static void detect_darktheme(MwLL handle) { MwLLDispatch(handle, dark_theme, &t); } -#endif - -/* There isn't any plgblt on Win16 at all */ -#ifdef __WINDOWS__ -#define is_plgblt_reliable 0 -#else -static int is_plgblt_reliable = 0; -#endif - static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { userdata_t* u = (userdata_t*)GetWindowLongPtr(hWnd, GWLP_USERDATA); @@ -155,7 +147,7 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { p.button = MwMOUSE_RIGHT; } - SetCapture(0); + SetCapture(NULL); MwLLDispatch(u->ll, up, &p); break; } @@ -176,7 +168,6 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { MwLLDispatch(u->ll, up, &p); break; } -#ifndef __WINDOWS__ case WM_DROPFILES: { HDROP hDrop = (HDROP)wp; @@ -198,7 +189,6 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { wsymtbl.DragFinish(hDrop); break; } -#endif case WM_MOUSEMOVE: { MwPoint p; @@ -259,18 +249,12 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { case WM_CHAR: case WM_SYSCHAR: { -#ifndef __WINDOWS__ - int n = wp; -#else - unsigned long n = wp; -#endif + int n = wp; const int base = 'A' - 1; if(n != 0x1b && n <= 0x1f) { n = (n + base) | MwKEY_CONTROL_FLAG; -#ifndef __WINDOWS__ if(!(GetKeyState(VK_LSHIFT) || GetKeyState(VK_RSHIFT))) n += 0x20; -#endif } if(HIBYTE(VkKeyScan(wp)) & 2) n |= MwKEY_CONTROL_FLAG; if(msg == WM_SYSCHAR) n |= MwKEY_ALT_FLAG; @@ -293,11 +277,9 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { case WM_SYSKEYDOWN: case WM_SYSKEYUP: { -#ifndef __WINDOWS__ int n = -1; -#else - unsigned long n = -1; -#endif + + if(wp == VK_MENU && msg == WM_KEYUP) return 0; switch(wp) { case VK_LEFT: n = MwKEY_LEFT; @@ -320,14 +302,12 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { case VK_ESCAPE: n = MwKEY_ESCAPE; break; -#ifndef __WINDOWS__ case VK_LSHIFT: n = MwKEY_LEFTSHIFT; break; case VK_RSHIFT: n = MwKEY_RIGHTSHIFT; break; -#endif case VK_MENU: n = MwKEY_ALT; break; @@ -385,7 +365,8 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { case WM_SETCURSOR: { if(LOWORD(lp) != HTCLIENT) return DefWindowProc(hWnd, msg, wp, lp); - if(u->ll->gdi.cursor != 0) SetCursor(u->ll->gdi.cursor); + if(u->ll->gdi.cursor != NULL) SetCursor(u->ll->gdi.cursor); + break; } case WM_USER: { @@ -398,11 +379,9 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { char* s = (char*)lp; LPARAM style = GetWindowLongPtr(hWnd, GWL_STYLE); -#ifndef __WINDOWS__ if(!(style & WS_CHILD)) { if(s != NULL && strcmp(s, "ImmersiveColorSet") == 0) detect_darktheme(u->ll); } -#endif break; } default: @@ -416,11 +395,7 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) { static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { MwLL r = malloc(sizeof(*r)); userdata_t* u = malloc(sizeof(*u)); -#ifdef __WINDOWS__ - WNDCLASS wc; -#else - WNDCLASSEX wc; -#endif + WNDCLASSEX wc; if(!r || !u) { printf("Out Of Memory\n"); @@ -428,9 +403,7 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { } memset(&wc, 0, sizeof(wc)); -#ifndef __WINDOWS__ - wc.cbSize = sizeof(WNDCLASSEX); -#endif + wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = wndproc; wc.cbClsExtra = 0; @@ -438,22 +411,14 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { wc.hInstance = (HINSTANCE)GetModuleHandle(NULL); wc.lpszClassName = "milsko"; wc.lpszMenuName = NULL; - wc.hCursor = LoadCursor(0, IDC_ARROW); + wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = GetSysColorBrush(COLOR_MENU); -#ifndef __WINDOWS__ - wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); - wc.hIconSm = NULL; -#else - wc.hIcon = LoadIcon(0, IDI_APPLICATION); -#endif + wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); + wc.hIconSm = NULL; MwLLCreateCommon(r); -#ifdef __WINDOWS__ - RegisterClass(&wc); -#else RegisterClassEx(&wc); -#endif r->common.copy_buffer = 1; r->common.type = MwLLBackendGDI; @@ -462,12 +427,12 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { if(parent == NULL) r->gdi.get_darktheme = 1; r->gdi.force_render = 0; r->gdi.grabbed = 0; - r->gdi.hWnd = CreateWindow("milsko", "Milsko", parent == NULL ? (WS_OVERLAPPEDWINDOW) : (WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS), x == MwDEFAULT ? CW_USEDEFAULT : x, y == MwDEFAULT ? CW_USEDEFAULT : y, width, height, parent == NULL ? 0 : parent->gdi.hWnd, 0, wc.hInstance, NULL); + r->gdi.hWnd = CreateWindow("milsko", "Milsko", parent == NULL ? (WS_OVERLAPPEDWINDOW) : (WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS), x == MwDEFAULT ? CW_USEDEFAULT : x, y == MwDEFAULT ? CW_USEDEFAULT : y, width, height, parent == NULL ? NULL : parent->gdi.hWnd, 0, wc.hInstance, NULL); r->gdi.hInstance = wc.hInstance; - r->gdi.cursor = 0; - r->gdi.icon = 0; + r->gdi.cursor = NULL; + r->gdi.icon = NULL; - r->gdi.clip = 0; + r->gdi.clip = NULL; u->ll = r; u->min_set = 0; @@ -482,7 +447,7 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { rc.right = width; rc.bottom = height; AdjustWindowRect(&rc, GetWindowLongPtr(r->gdi.hWnd, GWL_STYLE), FALSE); - SetWindowPos(r->gdi.hWnd, 0, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, SWP_NOMOVE); + SetWindowPos(r->gdi.hWnd, NULL, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, SWP_NOMOVE); ShowWindow(r->gdi.hWnd, SW_NORMAL); UpdateWindow(r->gdi.hWnd); @@ -490,7 +455,7 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) { InvalidateRect(r->gdi.hWnd, NULL, FALSE); } - SetWindowPos(r->gdi.hWnd, 0, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); + SetWindowPos(r->gdi.hWnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); return r; } @@ -502,9 +467,9 @@ static void MwLLDestroyImpl(MwLL handle) { SetWindowLongPtr(handle->gdi.hWnd, GWLP_USERDATA, (LPARAM)NULL); DestroyWindow(handle->gdi.hWnd); - if(handle->gdi.clip) DeleteObject(handle->gdi.clip); + if(handle->gdi.clip != NULL) DeleteObject(handle->gdi.clip); - if(handle->gdi.cursor) DestroyCursor(handle->gdi.cursor); + if(handle->gdi.cursor != NULL) DestroyCursor(handle->gdi.cursor); free(handle); } @@ -566,7 +531,7 @@ static MwLLColor MwLLAllocColorImpl(MwLL handle, int r, int g, int b) { return NULL; } - c->gdi.brush = 0; + c->gdi.brush = NULL; MwLLColorUpdate(handle, c, r, g, b); @@ -586,7 +551,7 @@ static void MwLLColorUpdateImpl(MwLL handle, MwLLColor c, int r, int g, int b) { color = GetNearestColor(dc, RGB(r, g, b)); - if(c->gdi.brush != 0) DeleteObject(c->gdi.brush); + if(c->gdi.brush != NULL) DeleteObject(c->gdi.brush); c->gdi.brush = CreateSolidBrush(color); c->common.red = r; c->common.green = g; @@ -614,12 +579,12 @@ static void MwLLGetXYWHImpl(MwLL handle, int* x, int* y, unsigned int* w, unsign } static void MwLLSetXYImpl(MwLL handle, int x, int y) { - SetWindowPos(handle->gdi.hWnd, 0, x, y, 0, 0, SWP_NOSIZE | SWP_NOZORDER); + SetWindowPos(handle->gdi.hWnd, NULL, x, y, 0, 0, SWP_NOSIZE | SWP_NOZORDER); } static void MwLLSetWHImpl(MwLL handle, int w, int h) { - SetWindowPos(handle->gdi.hWnd, 0, 0, 0, w, h, SWP_NOMOVE | SWP_NOZORDER); - InvalidateRect(handle->gdi.hWnd, 0, FALSE); + SetWindowPos(handle->gdi.hWnd, NULL, 0, 0, w, h, SWP_NOMOVE | SWP_NOZORDER); + InvalidateRect(handle->gdi.hWnd, NULL, FALSE); } static void MwLLSetTitleImpl(MwLL handle, const char* title) { @@ -640,12 +605,12 @@ static void MwLLNextEventImpl(MwLL handle) { (void)handle; -#ifndef __WINDOWS__ if(handle->gdi.get_clipboard) { HGLOBAL hg; - if(OpenClipboard(handle->gdi.hWnd) != 0 && (hg = GetClipboardData(CF_TEXT)) != 0) { + if(OpenClipboard(handle->gdi.hWnd) != 0 && (hg = GetClipboardData(CF_TEXT)) != NULL) { + int sz = GlobalSize(hg); + char* txt = malloc(sz); char* clp = GlobalLock(hg); - char* txt = malloc(GlobalSize(hg)); if(!txt || !clp) { printf("Out of Memory\n"); @@ -668,30 +633,23 @@ static void MwLLNextEventImpl(MwLL handle) { handle->gdi.get_clipboard = 0; } -#endif - -#ifndef __WINDOWS__ if(handle->gdi.get_darktheme) { detect_darktheme(handle); handle->gdi.get_darktheme = 0; } -#endif - while(PeekMessage(&msg, handle->gdi.hWnd, 0, 0, PM_NOREMOVE)) { - GetMessage(&msg, handle->gdi.hWnd, 0, 0); - TranslateMessage(&msg); - DispatchMessage(&msg); + while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) { + if(GetMessage(&msg, NULL, 0, 0)) { + TranslateMessage(&msg); + DispatchMessage(&msg); + } } } static MwLLPixmap MwLLCreatePixmapImpl(MwLL handle, unsigned char* data, int width, int height) { - MwLLPixmap r = malloc(sizeof(*r)); - HDC dc = GetDC(handle->gdi.hWnd); -#ifndef __WINDOWS__ + MwLLPixmap r = malloc(sizeof(*r)); + HDC dc = GetDC(handle->gdi.hWnd); BITMAPINFOHEADER bmih; -#else - BITMAPINFO bmi; -#endif if(!r) { printf("Out Of Memory\n"); @@ -709,7 +667,6 @@ static MwLLPixmap MwLLCreatePixmapImpl(MwLL handle, unsigned char* data, int wid r->common.width = width; r->common.height = height; -#ifndef __WINDOWS__ bmih.biSize = sizeof(bmih); bmih.biWidth = width; bmih.biHeight = -(LONG)height; @@ -723,15 +680,9 @@ static MwLLPixmap MwLLCreatePixmapImpl(MwLL handle, unsigned char* data, int wid bmih.biClrImportant = 0; r->gdi.hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&r->gdi.quad, NULL, (DWORD)0); -#else - r->gdi.hBitmap = CreateCompatibleBitmap(dc, width, height); - r->gdi.hBitmapMem = CreateCompatibleDC(dc); - SelectObject(r->gdi.hBitmapMem, r->gdi.hBitmap); - SetDIBits(r->gdi.hBitmapMem, r->gdi.hBitmap, 0, height, r->common.raw, &bmi, DIB_RGB_COLORS); -#endif - r->gdi.hMask = 0; - r->gdi.hMask2 = 0; + r->gdi.hMask = NULL; + r->gdi.hMask2 = NULL; ReleaseDC(handle->gdi.hWnd, dc); @@ -777,8 +728,8 @@ static void MwLLPixmapUpdateImpl(MwLLPixmap r) { } } - if(r->gdi.hMask != 0) DeleteObject(r->gdi.hMask); - if(r->gdi.hMask2 != 0) DeleteObject(r->gdi.hMask2); + if(r->gdi.hMask != NULL) DeleteObject(r->gdi.hMask); + if(r->gdi.hMask2 != NULL) DeleteObject(r->gdi.hMask2); r->gdi.hMask = CreateBitmap(r->common.width, r->common.height, 1, 1, words); r->gdi.hMask2 = CreateBitmap(r->common.width, r->common.height, 1, 1, words2); @@ -812,27 +763,18 @@ static void MwLLDrawPixmapImpl(MwLL handle, MwRect* rect, MwLLPixmap pixmap) { SelectObject(hmdc, pixmap->gdi.hBitmap); -#ifndef __WINDOWS__ if(!is_plgblt_reliable || PlgBlt(handle->gdi.hDC, p, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, pixmap->gdi.hMask, 0, 0) == 0) { -#endif SelectObject(hmdc, pixmap->gdi.hMask2); StretchBlt(handle->gdi.hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, SRCAND); SelectObject(hmdc, pixmap->gdi.hBitmap); StretchBlt(handle->gdi.hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, SRCPAINT); -#ifndef __WINDOWS__ } -#endif DeleteDC(hmdc); } static void MwLLSetIconImpl(MwLL handle, MwLLPixmap pixmap) { - /* it's probably (presumably) not possible to set the icon on 16-bit windows */ -#ifdef __WINDOWS__ - (void)handle; - (void)pixmap; -#else ICONINFO ii; memset(&ii, 0, sizeof(ii)); @@ -846,7 +788,6 @@ static void MwLLSetIconImpl(MwLL handle, MwLLPixmap pixmap) { handle->gdi.icon = CreateIconIndirect(&ii); SendMessage(handle->gdi.hWnd, WM_SETICON, ICON_SMALL, (LPARAM)handle->gdi.icon); SendMessage(handle->gdi.hWnd, WM_SETICON, ICON_BIG, (LPARAM)handle->gdi.icon); -#endif } static void MwLLForceRenderImpl(MwLL handle) { @@ -907,19 +848,11 @@ HCURSOR MwLLGDICreateCursor(MwCursor* image, MwCursor* mask) { } static void MwLLSetCursorImpl(MwLL handle, MwCursor* image, MwCursor* mask) { - if(image && mask) { - HCURSOR cursor = MwLLGDICreateCursor(image, mask); + HCURSOR cursor = MwLLGDICreateCursor(image, mask); - if(handle->gdi.cursor != 0) DestroyCursor(handle->gdi.cursor); - if(handle->gdi.icon != 0) DestroyIcon(handle->gdi.icon); - handle->gdi.cursor = cursor; - } - /* Only on Win16: hide the cursor outright if image/mask are null */ -#ifndef __WINDOWS__ - else if(!image && !mask) { - ShowCursor(FALSE); - } -#endif + if(handle->gdi.cursor != NULL) DestroyCursor(handle->gdi.cursor); + if(handle->gdi.icon != NULL) DestroyIcon(handle->gdi.icon); + handle->gdi.cursor = cursor; } static void MwLLDetachImpl(MwLL handle, MwPoint* point) { @@ -933,16 +866,12 @@ static void MwLLDetachImpl(MwLL handle, MwPoint* point) { GetClientRect(handle->gdi.hWnd, &rc2); -#ifdef __WINDOWS__ - if(lp2 & WS_POPUP) { -#else if(lp2 & WS_EX_TOOLWINDOW) { -#endif SetWindowLongPtr(handle->gdi.hWnd, GWL_STYLE, (LPARAM)lp); } else { SetWindowLongPtr(handle->gdi.hWnd, GWL_STYLE, (LPARAM)WS_OVERLAPPEDWINDOW | lp); } - SetParent(handle->gdi.hWnd, 0); + SetParent(handle->gdi.hWnd, NULL); rc.left += point->x; rc.top += point->y; @@ -988,7 +917,7 @@ static void MwLLMakeBorderlessImpl(MwLL handle, int toggle) { SetWindowLongPtr(handle->gdi.hWnd, GWL_STYLE, lp); - SetWindowPos(handle->gdi.hWnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER); + SetWindowPos(handle->gdi.hWnd, NULL, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER); } static void MwLLFocusImpl(MwLL handle) { @@ -1025,11 +954,6 @@ static void MwLLGrabPointerImpl(MwLL handle, int toggle) { } static void MwLLSetClipboardImpl(MwLL handle, const char* text, int clipboard_type) { -#ifdef __WINDOWS__ - (void)handle; - (void)text; - (void)clipboard_type; -#else HGLOBAL hg; (void)clipboard_type; if(OpenClipboard(handle->gdi.hWnd) != 0) { @@ -1064,7 +988,6 @@ static void MwLLSetClipboardImpl(MwLL handle, const char* text, int clipboard_ty CloseClipboard(); } -#endif } static void MwLLGetClipboardImpl(MwLL handle, int clipboard_type) { @@ -1078,17 +1001,14 @@ static void MwLLMakeToolWindowImpl(MwLL handle) { int w, h; SetWindowLongPtr(handle->gdi.hWnd, GWL_STYLE, (LPARAM)lp); -#ifdef __WINDOWS__ - SetWindowLongPtr(handle->gdi.hWnd, GWL_EXSTYLE, (LPARAM)WS_POPUP); -#else SetWindowLongPtr(handle->gdi.hWnd, GWL_EXSTYLE, (LPARAM)WS_EX_TOOLWINDOW); -#endif + GetClientRect(handle->gdi.hWnd, &rc); w = rc.right - rc.left; h = rc.bottom - rc.top; - SetWindowPos(handle->gdi.hWnd, 0, 0, 0, w, h, SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER); + SetWindowPos(handle->gdi.hWnd, NULL, 0, 0, w, h, SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER); } static void MwLLGetCursorCoordImpl(MwLL handle, MwPoint* point) { @@ -1123,21 +1043,13 @@ static void MwLLEndStateChangeImpl(MwLL handle) { } static void MwLLSetDarkThemeImpl(MwLL handle, int toggle) { -#ifdef __WINDOWS__ - (void)handle; - (void)toggle; -#else BOOL v = toggle ? TRUE : FALSE; if(DwmSetWindowAttribute) DwmSetWindowAttribute(handle->gdi.hWnd, 20, &v, sizeof(v)); -#endif } static MwBool MwLLDoModernImpl(MwLL handle) { -#ifdef __WINDOWS__ - return MwFALSE; -#else OSVERSIONINFO osvi; (void)handle; @@ -1151,41 +1063,38 @@ static MwBool MwLLDoModernImpl(MwLL handle) { } return MwTRUE; -#endif } static void MwLLRaiseImpl(MwLL handle) { - SetWindowPos(handle->gdi.hWnd, 0, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); + SetWindowPos(handle->gdi.hWnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); } static void MwLLClipImpl(MwLL handle, MwRect* rect) { if(rect == NULL) { - SelectClipRgn(handle->gdi.hDC, 0); + SelectClipRgn(handle->gdi.hDC, NULL); - if(handle->gdi.clip) { + if(handle->gdi.clip != NULL) { DeleteObject(handle->gdi.clip); - handle->gdi.clip = 0; + handle->gdi.clip = NULL; } } else { HRGN clip = CreateRectRgn(rect->x, rect->y, rect->x + rect->width, rect->y + rect->height); SelectClipRgn(handle->gdi.hDC, clip); - if(handle->gdi.clip != 0) DeleteObject(handle->gdi.clip); + if(handle->gdi.clip != NULL) DeleteObject(handle->gdi.clip); handle->gdi.clip = clip; } } static void MwLLSetupDragAndDropImpl(MwLL handle) { -#ifndef __WINDOWS__ wsymtbl.DragAcceptFiles(handle->gdi.hWnd, TRUE); -#endif } static int MwLLGDICallInitImpl(void) { -#ifndef __WINDOWS__ void* ntdll; + memset(&wsymtbl, 0, sizeof(wsymtbl)); wsymtbl.lib_dwmapi = MwDynamicOpen("dwmapi.dll"); @@ -1219,7 +1128,6 @@ static int MwLLGDICallInitImpl(void) { wsymtbl.has_drag_and_drop = MwTRUE; } dnd_error: -#endif /* TODO: check properly */ return 0; diff --git a/src/color.c b/src/color.c index e74518d92..ae3667ed5 100644 --- a/src/color.c +++ b/src/color.c @@ -2,491 +2,6 @@ #include "../external/stb_ds.h" -struct color_table_entry { - char* key; - MwU8 red; - MwU8 blue; - MwU8 green; -}; - -static struct color_table_entry color_entries[] = { - {"snow", 255, 250, 250}, - {"ghost white", 248, 248, 255}, - {"white smoke", 245, 245, 245}, - {"gainsboro", 220, 220, 220}, - {"floral white", 255, 250, 240}, - {"old lace", 253, 245, 230}, - {"linen", 250, 240, 230}, - {"antique white", 250, 235, 215}, - {"papaya whip", 255, 239, 213}, - {"blanched almond", 255, 235, 205}, - {"bisque", 255, 228, 196}, - {"peach puff", 255, 218, 185}, - {"navajo white", 255, 222, 173}, - {"moccasin", 255, 228, 181}, - {"cornsilk", 255, 248, 220}, - {"ivory", 255, 255, 240}, - {"lemon chiffon", 255, 250, 205}, - {"seashell", 255, 245, 238}, - {"honeydew", 240, 255, 240}, - {"mint cream", 245, 255, 250}, - {"azure", 240, 255, 255}, - {"alice blue", 240, 248, 255}, - {"lavender", 230, 230, 250}, - {"lavender blush", 255, 240, 245}, - {"misty rose", 255, 228, 225}, - {"white", 255, 255, 255}, - {"black", 0, 0, 0}, - {"dark slate gray", 47, 79, 79}, - {"dark slate grey", 47, 79, 79}, - {"dim gray", 105, 105, 105}, - {"dim grey", 105, 105, 105}, - {"slate gray", 112, 128, 144}, - {"slate grey", 112, 128, 144}, - {"light slate gray", 119, 136, 153}, - {"light slate grey", 119, 136, 153}, - {"gray", 190, 190, 190}, - {"grey", 190, 190, 190}, - {"x11 gray", 190, 190, 190}, - {"x11 grey", 190, 190, 190}, - {"web gray", 128, 128, 128}, - {"web grey", 128, 128, 128}, - {"light grey", 211, 211, 211}, - {"light gray", 211, 211, 211}, - {"midnight blue", 25, 25, 112}, - {"navy", 0, 0, 128}, - {"navy blue", 0, 0, 128}, - {"cornflower blue", 100, 149, 237}, - {"dark slate blue", 72, 61, 139}, - {"slate blue", 106, 90, 205}, - {"medium slate blue", 123, 104, 238}, - {"light slate blue", 132, 112, 255}, - {"medium blue", 0, 0, 205}, - {"royal blue", 65, 105, 225}, - {"blue", 0, 0, 255}, - {"dodger blue", 30, 144, 255}, - {"deep sky blue", 0, 191, 255}, - {"sky blue", 135, 206, 235}, - {"light sky blue", 135, 206, 250}, - {"steel blue", 70, 130, 180}, - {"light steel blue", 176, 196, 222}, - {"light blue", 173, 216, 230}, - {"powder blue", 176, 224, 230}, - {"pale turquoise", 175, 238, 238}, - {"dark turquoise", 0, 206, 209}, - {"medium turquoise", 72, 209, 204}, - {"turquoise", 64, 224, 208}, - {"cyan", 0, 255, 255}, - {"aqua", 0, 255, 255}, - {"light cyan", 224, 255, 255}, - {"cadet blue", 95, 158, 160}, - {"medium aquamarine", 102, 205, 170}, - {"aquamarine", 127, 255, 212}, - {"dark green", 0, 100, 0}, - {"dark olive green", 85, 107, 47}, - {"dark sea green", 143, 188, 143}, - {"sea green", 46, 139, 87}, - {"medium sea green", 60, 179, 113}, - {"light sea green", 32, 178, 170}, - {"pale green", 152, 251, 152}, - {"spring green", 0, 255, 127}, - {"lawn green", 124, 252, 0}, - {"green", 0, 255, 0}, - {"lime", 0, 255, 0}, - {"x11 green", 0, 255, 0}, - {"web green", 0, 128, 0}, - {"chartreuse", 127, 255, 0}, - {"medium spring green", 0, 250, 154}, - {"green yellow", 173, 255, 47}, - {"lime green", 50, 205, 50}, - {"yellow green", 154, 205, 50}, - {"forest green", 34, 139, 34}, - {"olive drab", 107, 142, 35}, - {"dark khaki", 189, 183, 107}, - {"khaki", 240, 230, 140}, - {"pale goldenrod", 238, 232, 170}, - {"light goldenrod yellow", 250, 250, 210}, - {"light yellow", 255, 255, 224}, - {"yellow", 255, 255, 0}, - {"gold", 255, 215, 0}, - {"light goldenrod", 238, 221, 130}, - {"goldenrod", 218, 165, 32}, - {"dark goldenrod", 184, 134, 11}, - {"rosy brown", 188, 143, 143}, - {"indian red", 205, 92, 92}, - {"saddle brown", 139, 69, 19}, - {"sienna", 160, 82, 45}, - {"peru", 205, 133, 63}, - {"burlywood", 222, 184, 135}, - {"beige", 245, 245, 220}, - {"wheat", 245, 222, 179}, - {"sandy brown", 244, 164, 96}, - {"tan", 210, 180, 140}, - {"chocolate", 210, 105, 30}, - {"firebrick", 178, 34, 34}, - {"brown", 165, 42, 42}, - {"dark salmon", 233, 150, 122}, - {"salmon", 250, 128, 114}, - {"light salmon", 255, 160, 122}, - {"orange", 255, 165, 0}, - {"dark orange", 255, 140, 0}, - {"coral", 255, 127, 80}, - {"light coral", 240, 128, 128}, - {"tomato", 255, 99, 71}, - {"orange red", 255, 69, 0}, - {"red", 255, 0, 0}, - {"hot pink", 255, 105, 180}, - {"deep pink", 255, 20, 147}, - {"pink", 255, 192, 203}, - {"light pink", 255, 182, 193}, - {"pale violet red", 219, 112, 147}, - {"maroon", 176, 48, 96}, - {"x11 maroon", 176, 48, 96}, - {"web maroon", 128, 0, 0}, - {"medium violet red", 199, 21, 133}, - {"violet red", 208, 32, 144}, - {"magenta", 255, 0, 255}, - {"fuchsia", 255, 0, 255}, - {"violet", 238, 130, 238}, - {"plum", 221, 160, 221}, - {"orchid", 218, 112, 214}, - {"medium orchid", 186, 85, 211}, - {"dark orchid", 153, 50, 204}, - {"dark violet", 148, 0, 211}, - {"blue violet", 138, 43, 226}, - {"purple", 160, 32, 240}, - {"x11 purple", 160, 32, 240}, - {"web purple", 128, 0, 128}, - {"medium purple", 147, 112, 219}, - {"thistle", 216, 191, 216}, - {"snow1", 255, 250, 250}, - {"snow2", 238, 233, 233}, - {"snow3", 205, 201, 201}, - {"snow4", 139, 137, 137}, - {"seashell1", 255, 245, 238}, - {"seashell2", 238, 229, 222}, - {"seashell3", 205, 197, 191}, - {"seashell4", 139, 134, 130}, - {"AntiqueWhite1", 255, 239, 219}, - {"AntiqueWhite2", 238, 223, 204}, - {"AntiqueWhite3", 205, 192, 176}, - {"AntiqueWhite4", 139, 131, 120}, - {"bisque1", 255, 228, 196}, - {"bisque2", 238, 213, 183}, - {"bisque3", 205, 183, 158}, - {"bisque4", 139, 125, 107}, - {"PeachPuff1", 255, 218, 185}, - {"PeachPuff2", 238, 203, 173}, - {"PeachPuff3", 205, 175, 149}, - {"PeachPuff4", 139, 119, 101}, - {"NavajoWhite1", 255, 222, 173}, - {"NavajoWhite2", 238, 207, 161}, - {"NavajoWhite3", 205, 179, 139}, - {"NavajoWhite4", 139, 121, 94}, - {"LemonChiffon1", 255, 250, 205}, - {"LemonChiffon2", 238, 233, 191}, - {"LemonChiffon3", 205, 201, 165}, - {"LemonChiffon4", 139, 137, 112}, - {"cornsilk1", 255, 248, 220}, - {"cornsilk2", 238, 232, 205}, - {"cornsilk3", 205, 200, 177}, - {"cornsilk4", 139, 136, 120}, - {"ivory1", 255, 255, 240}, - {"ivory2", 238, 238, 224}, - {"ivory3", 205, 205, 193}, - {"ivory4", 139, 139, 131}, - {"honeydew1", 240, 255, 240}, - {"honeydew2", 224, 238, 224}, - {"honeydew3", 193, 205, 193}, - {"honeydew4", 131, 139, 131}, - {"LavenderBlush1", 255, 240, 245}, - {"LavenderBlush2", 238, 224, 229}, - {"LavenderBlush3", 205, 193, 197}, - {"LavenderBlush4", 139, 131, 134}, - {"MistyRose1", 255, 228, 225}, - {"MistyRose2", 238, 213, 210}, - {"MistyRose3", 205, 183, 181}, - {"MistyRose4", 139, 125, 123}, - {"azure1", 240, 255, 255}, - {"azure2", 224, 238, 238}, - {"azure3", 193, 205, 205}, - {"azure4", 131, 139, 139}, - {"SlateBlue1", 131, 111, 255}, - {"SlateBlue2", 122, 103, 238}, - {"SlateBlue3", 105, 89, 205}, - {"SlateBlue4", 71, 60, 139}, - {"RoyalBlue1", 72, 118, 255}, - {"RoyalBlue2", 67, 110, 238}, - {"RoyalBlue3", 58, 95, 205}, - {"RoyalBlue4", 39, 64, 139}, - {"blue1", 0, 0, 255}, - {"blue2", 0, 0, 238}, - {"blue3", 0, 0, 205}, - {"blue4", 0, 0, 139}, - {"DodgerBlue1", 30, 144, 255}, - {"DodgerBlue2", 28, 134, 238}, - {"DodgerBlue3", 24, 116, 205}, - {"DodgerBlue4", 16, 78, 139}, - {"SteelBlue1", 99, 184, 255}, - {"SteelBlue2", 92, 172, 238}, - {"SteelBlue3", 79, 148, 205}, - {"SteelBlue4", 54, 100, 139}, - {"DeepSkyBlue1", 0, 191, 255}, - {"DeepSkyBlue2", 0, 178, 238}, - {"DeepSkyBlue3", 0, 154, 205}, - {"DeepSkyBlue4", 0, 104, 139}, - {"SkyBlue1", 135, 206, 255}, - {"SkyBlue2", 126, 192, 238}, - {"SkyBlue3", 108, 166, 205}, - {"SkyBlue4", 74, 112, 139}, - {"LightSkyBlue1", 176, 226, 255}, - {"LightSkyBlue2", 164, 211, 238}, - {"LightSkyBlue3", 141, 182, 205}, - {"LightSkyBlue4", 96, 123, 139}, - {"SlateGray1", 198, 226, 255}, - {"SlateGray2", 185, 211, 238}, - {"SlateGray3", 159, 182, 205}, - {"SlateGray4", 108, 123, 139}, - {"LightSteelBlue1", 202, 225, 255}, - {"LightSteelBlue2", 188, 210, 238}, - {"LightSteelBlue3", 162, 181, 205}, - {"LightSteelBlue4", 110, 123, 139}, - {"LightBlue1", 191, 239, 255}, - {"LightBlue2", 178, 223, 238}, - {"LightBlue3", 154, 192, 205}, - {"LightBlue4", 104, 131, 139}, - {"LightCyan1", 224, 255, 255}, - {"LightCyan2", 209, 238, 238}, - {"LightCyan3", 180, 205, 205}, - {"LightCyan4", 122, 139, 139}, - {"PaleTurquoise1", 187, 255, 255}, - {"PaleTurquoise2", 174, 238, 238}, - {"PaleTurquoise3", 150, 205, 205}, - {"PaleTurquoise4", 102, 139, 139}, - {"CadetBlue1", 152, 245, 255}, - {"CadetBlue2", 142, 229, 238}, - {"CadetBlue3", 122, 197, 205}, - {"CadetBlue4", 83, 134, 139}, - {"turquoise1", 0, 245, 255}, - {"turquoise2", 0, 229, 238}, - {"turquoise3", 0, 197, 205}, - {"turquoise4", 0, 134, 139}, - {"cyan1", 0, 255, 255}, - {"cyan2", 0, 238, 238}, - {"cyan3", 0, 205, 205}, - {"cyan4", 0, 139, 139}, - {"DarkSlateGray1", 151, 255, 255}, - {"DarkSlateGray2", 141, 238, 238}, - {"DarkSlateGray3", 121, 205, 205}, - {"DarkSlateGray4", 82, 139, 139}, - {"aquamarine1", 127, 255, 212}, - {"aquamarine2", 118, 238, 198}, - {"aquamarine3", 102, 205, 170}, - {"aquamarine4", 69, 139, 116}, - {"DarkSeaGreen1", 193, 255, 193}, - {"DarkSeaGreen2", 180, 238, 180}, - {"DarkSeaGreen3", 155, 205, 155}, - {"DarkSeaGreen4", 105, 139, 105}, - {"SeaGreen1", 84, 255, 159}, - {"SeaGreen2", 78, 238, 148}, - {"SeaGreen3", 67, 205, 128}, - {"SeaGreen4", 46, 139, 87}, - {"PaleGreen1", 154, 255, 154}, - {"PaleGreen2", 144, 238, 144}, - {"PaleGreen3", 124, 205, 124}, - {"PaleGreen4", 84, 139, 84}, - {"SpringGreen1", 0, 255, 127}, - {"SpringGreen2", 0, 238, 118}, - {"SpringGreen3", 0, 205, 102}, - {"SpringGreen4", 0, 139, 69}, - {"green1", 0, 255, 0}, - {"green2", 0, 238, 0}, - {"green3", 0, 205, 0}, - {"green4", 0, 139, 0}, - {"chartreuse1", 127, 255, 0}, - {"chartreuse2", 118, 238, 0}, - {"chartreuse3", 102, 205, 0}, - {"chartreuse4", 69, 139, 0}, - {"OliveDrab1", 192, 255, 62}, - {"OliveDrab2", 179, 238, 58}, - {"OliveDrab3", 154, 205, 50}, - {"OliveDrab4", 105, 139, 34}, - {"DarkOliveGreen1", 202, 255, 112}, - {"DarkOliveGreen2", 188, 238, 104}, - {"DarkOliveGreen3", 162, 205, 90}, - {"DarkOliveGreen4", 110, 139, 61}, - {"khaki1", 255, 246, 143}, - {"khaki2", 238, 230, 133}, - {"khaki3", 205, 198, 115}, - {"khaki4", 139, 134, 78}, - {"LightGoldenrod1", 255, 236, 139}, - {"LightGoldenrod2", 238, 220, 130}, - {"LightGoldenrod3", 205, 190, 112}, - {"LightGoldenrod4", 139, 129, 76}, - {"LightYellow1", 255, 255, 224}, - {"LightYellow2", 238, 238, 209}, - {"LightYellow3", 205, 205, 180}, - {"LightYellow4", 139, 139, 122}, - {"yellow1", 255, 255, 0}, - {"yellow2", 238, 238, 0}, - {"yellow3", 205, 205, 0}, - {"yellow4", 139, 139, 0}, - {"gold1", 255, 215, 0}, - {"gold2", 238, 201, 0}, - {"gold3", 205, 173, 0}, - {"gold4", 139, 117, 0}, - {"goldenrod1", 255, 193, 37}, - {"goldenrod2", 238, 180, 34}, - {"goldenrod3", 205, 155, 29}, - {"goldenrod4", 139, 105, 20}, - {"DarkGoldenrod1", 255, 185, 15}, - {"DarkGoldenrod2", 238, 173, 14}, - {"DarkGoldenrod3", 205, 149, 12}, - {"DarkGoldenrod4", 139, 101, 8}, - {"RosyBrown1", 255, 193, 193}, - {"RosyBrown2", 238, 180, 180}, - {"RosyBrown3", 205, 155, 155}, - {"RosyBrown4", 139, 105, 105}, - {"IndianRed1", 255, 106, 106}, - {"IndianRed2", 238, 99, 99}, - {"IndianRed3", 205, 85, 85}, - {"IndianRed4", 139, 58, 58}, - {"sienna1", 255, 130, 71}, - {"sienna2", 238, 121, 66}, - {"sienna3", 205, 104, 57}, - {"sienna4", 139, 71, 38}, - {"burlywood1", 255, 211, 155}, - {"burlywood2", 238, 197, 145}, - {"burlywood3", 205, 170, 125}, - {"burlywood4", 139, 115, 85}, - {"wheat1", 255, 231, 186}, - {"wheat2", 238, 216, 174}, - {"wheat3", 205, 186, 150}, - {"wheat4", 139, 126, 102}, - {"tan1", 255, 165, 79}, - {"tan2", 238, 154, 73}, - {"tan3", 205, 133, 63}, - {"tan4", 139, 90, 43}, - {"chocolate1", 255, 127, 36}, - {"chocolate2", 238, 118, 33}, - {"chocolate3", 205, 102, 29}, - {"chocolate4", 139, 69, 19}, - {"firebrick1", 255, 48, 48}, - {"firebrick2", 238, 44, 44}, - {"firebrick3", 205, 38, 38}, - {"firebrick4", 139, 26, 26}, - {"brown1", 255, 64, 64}, - {"brown2", 238, 59, 59}, - {"brown3", 205, 51, 51}, - {"brown4", 139, 35, 35}, - {"salmon1", 255, 140, 105}, - {"salmon2", 238, 130, 98}, - {"salmon3", 205, 112, 84}, - {"salmon4", 139, 76, 57}, - {"LightSalmon1", 255, 160, 122}, - {"LightSalmon2", 238, 149, 114}, - {"LightSalmon3", 205, 129, 98}, - {"LightSalmon4", 139, 87, 66}, - {"orange1", 255, 165, 0}, - {"orange2", 238, 154, 0}, - {"orange3", 205, 133, 0}, - {"orange4", 139, 90, 0}, - {"DarkOrange1", 255, 127, 0}, - {"DarkOrange2", 238, 118, 0}, - {"DarkOrange3", 205, 102, 0}, - {"DarkOrange4", 139, 69, 0}, - {"coral1", 255, 114, 86}, - {"coral2", 238, 106, 80}, - {"coral3", 205, 91, 69}, - {"coral4", 139, 62, 47}, - {"tomato1", 255, 99, 71}, - {"tomato2", 238, 92, 66}, - {"tomato3", 205, 79, 57}, - {"tomato4", 139, 54, 38}, - {"OrangeRed1", 255, 69, 0}, - {"OrangeRed2", 238, 64, 0}, - {"OrangeRed3", 205, 55, 0}, - {"OrangeRed4", 139, 37, 0}, - {"red1", 255, 0, 0}, - {"red2", 238, 0, 0}, - {"red3", 205, 0, 0}, - {"red4", 139, 0, 0}, - {"DeepPink1", 255, 20, 147}, - {"DeepPink2", 238, 18, 137}, - {"DeepPink3", 205, 16, 118}, - {"DeepPink4", 139, 10, 80}, - {"HotPink1", 255, 110, 180}, - {"HotPink2", 238, 106, 167}, - {"HotPink3", 205, 96, 144}, - {"HotPink4", 139, 58, 98}, - {"pink1", 255, 181, 197}, - {"pink2", 238, 169, 184}, - {"pink3", 205, 145, 158}, - {"pink4", 139, 99, 108}, - {"LightPink1", 255, 174, 185}, - {"LightPink2", 238, 162, 173}, - {"LightPink3", 205, 140, 149}, - {"LightPink4", 139, 95, 101}, - {"PaleVioletRed1", 255, 130, 171}, - {"PaleVioletRed2", 238, 121, 159}, - {"PaleVioletRed3", 205, 104, 137}, - {"PaleVioletRed4", 139, 71, 93}, - {"maroon1", 255, 52, 179}, - {"maroon2", 238, 48, 167}, - {"maroon3", 205, 41, 144}, - {"maroon4", 139, 28, 98}, - {"VioletRed1", 255, 62, 150}, - {"VioletRed2", 238, 58, 140}, - {"VioletRed3", 205, 50, 120}, - {"VioletRed4", 139, 34, 82}, - {"magenta1", 255, 0, 255}, - {"magenta2", 238, 0, 238}, - {"magenta3", 205, 0, 205}, - {"magenta4", 139, 0, 139}, - {"orchid1", 255, 131, 250}, - {"orchid2", 238, 122, 233}, - {"orchid3", 205, 105, 201}, - {"orchid4", 139, 71, 137}, - {"plum1", 255, 187, 255}, - {"plum2", 238, 174, 238}, - {"plum3", 205, 150, 205}, - {"plum4", 139, 102, 139}, - {"MediumOrchid1", 224, 102, 255}, - {"MediumOrchid2", 209, 95, 238}, - {"MediumOrchid3", 180, 82, 205}, - {"MediumOrchid4", 122, 55, 139}, - {"DarkOrchid1", 191, 62, 255}, - {"DarkOrchid2", 178, 58, 238}, - {"DarkOrchid3", 154, 50, 205}, - {"DarkOrchid4", 104, 34, 139}, - {"purple1", 155, 48, 255}, - {"purple2", 145, 44, 238}, - {"purple3", 125, 38, 205}, - {"purple4", 85, 26, 139}, - {"MediumPurple1", 171, 130, 255}, - {"MediumPurple2", 159, 121, 238}, - {"MediumPurple3", 137, 104, 205}, - {"MediumPurple4", 93, 71, 139}, - {"thistle1", 255, 225, 255}, - {"thistle2", 238, 210, 238}, - {"thistle3", 205, 181, 205}, - {"thistle4", 139, 123, 139}, - - {"dark grey", 169, 169, 169}, - {"dark gray", 169, 169, 169}, - {"dark blue", 0, 0, 139}, - {"dark cyan", 0, 139, 139}, - {"dark magenta", 139, 0, 139}, - {"dark red", 139, 0, 0}, - {"light green", 144, 238, 144}, - {"crimson", 220, 20, 60}, - {"indigo", 75, 0, 130}, - {"olive", 128, 128, 0}, - {"rebecca purple", 102, 51, 153}, - {"silver", 192, 192, 192}, - {"teal", 0, 128, 128}, -}; - struct color { char* key; MwU32 value; @@ -508,41 +23,793 @@ void MwParseColorNameNoAllocate(const char* color, MwRGB* rgb) { } static void add_color(const char* name, int red, int green, int blue) { - const char* p; - MwU32 v = (red << 16) | (green << 8) | (blue << 0); - char camel[64]; - size_t out = 0; - int capitalize_next = 1; - + MwU32 v = (red << 16) | (green << 8) | (blue << 0); shput(colors, name, v); - for(p = name; *p != '\0' && out < sizeof(camel) - 1; p++) { - if(*p == ' ') { - capitalize_next = 1; - } else { - camel[out++] = capitalize_next ? (char)toupper((unsigned char)*p) : *p; - capitalize_next = 0; - } - } - camel[out] = '\0'; - - shput(colors, camel, v); } void MwColorTableInit(void) { - int i = 0, gray = 0, grayID = 0; sh_new_strdup(colors); shdefault(colors, 0); - - for(i = 0; i < sizeof(color_entries) / sizeof(struct color_table_entry); i++) { - add_color(color_entries[i].key, color_entries[i].red, color_entries[i].green, color_entries[i].blue); - } - - for(grayID = 0; grayID < 100; grayID++) { - char grayName[255]; - MwStringPrintIntoBuffer(grayName, 255, "gray%d", grayID); - add_color(grayName, gray, gray, gray); - MwStringPrintIntoBuffer(grayName, 255, "grey%d", grayID); - add_color(grayName, gray, gray, gray); - gray += 3; - } + add_color("snow", 255, 250, 250); + add_color("ghost white", 248, 248, 255); + add_color("GhostWhite", 248, 248, 255); + add_color("white smoke", 245, 245, 245); + add_color("WhiteSmoke", 245, 245, 245); + add_color("gainsboro", 220, 220, 220); + add_color("floral white", 255, 250, 240); + add_color("FloralWhite", 255, 250, 240); + add_color("old lace", 253, 245, 230); + add_color("OldLace", 253, 245, 230); + add_color("linen", 250, 240, 230); + add_color("antique white", 250, 235, 215); + add_color("AntiqueWhite", 250, 235, 215); + add_color("papaya whip", 255, 239, 213); + add_color("PapayaWhip", 255, 239, 213); + add_color("blanched almond", 255, 235, 205); + add_color("BlanchedAlmond", 255, 235, 205); + add_color("bisque", 255, 228, 196); + add_color("peach puff", 255, 218, 185); + add_color("PeachPuff", 255, 218, 185); + add_color("navajo white", 255, 222, 173); + add_color("NavajoWhite", 255, 222, 173); + add_color("moccasin", 255, 228, 181); + add_color("cornsilk", 255, 248, 220); + add_color("ivory", 255, 255, 240); + add_color("lemon chiffon", 255, 250, 205); + add_color("LemonChiffon", 255, 250, 205); + add_color("seashell", 255, 245, 238); + add_color("honeydew", 240, 255, 240); + add_color("mint cream", 245, 255, 250); + add_color("MintCream", 245, 255, 250); + add_color("azure", 240, 255, 255); + add_color("alice blue", 240, 248, 255); + add_color("AliceBlue", 240, 248, 255); + add_color("lavender", 230, 230, 250); + add_color("lavender blush", 255, 240, 245); + add_color("LavenderBlush", 255, 240, 245); + add_color("misty rose", 255, 228, 225); + add_color("MistyRose", 255, 228, 225); + add_color("white", 255, 255, 255); + add_color("black", 0, 0, 0); + add_color("dark slate gray", 47, 79, 79); + add_color("DarkSlateGray", 47, 79, 79); + add_color("dark slate grey", 47, 79, 79); + add_color("DarkSlateGrey", 47, 79, 79); + add_color("dim gray", 105, 105, 105); + add_color("DimGray", 105, 105, 105); + add_color("dim grey", 105, 105, 105); + add_color("DimGrey", 105, 105, 105); + add_color("slate gray", 112, 128, 144); + add_color("SlateGray", 112, 128, 144); + add_color("slate grey", 112, 128, 144); + add_color("SlateGrey", 112, 128, 144); + add_color("light slate gray", 119, 136, 153); + add_color("LightSlateGray", 119, 136, 153); + add_color("light slate grey", 119, 136, 153); + add_color("LightSlateGrey", 119, 136, 153); + add_color("gray", 190, 190, 190); + add_color("grey", 190, 190, 190); + add_color("x11 gray", 190, 190, 190); + add_color("X11Gray", 190, 190, 190); + add_color("x11 grey", 190, 190, 190); + add_color("X11Grey", 190, 190, 190); + add_color("web gray", 128, 128, 128); + add_color("WebGray", 128, 128, 128); + add_color("web grey", 128, 128, 128); + add_color("WebGrey", 128, 128, 128); + add_color("light grey", 211, 211, 211); + add_color("LightGrey", 211, 211, 211); + add_color("light gray", 211, 211, 211); + add_color("LightGray", 211, 211, 211); + add_color("midnight blue", 25, 25, 112); + add_color("MidnightBlue", 25, 25, 112); + add_color("navy", 0, 0, 128); + add_color("navy blue", 0, 0, 128); + add_color("NavyBlue", 0, 0, 128); + add_color("cornflower blue", 100, 149, 237); + add_color("CornflowerBlue", 100, 149, 237); + add_color("dark slate blue", 72, 61, 139); + add_color("DarkSlateBlue", 72, 61, 139); + add_color("slate blue", 106, 90, 205); + add_color("SlateBlue", 106, 90, 205); + add_color("medium slate blue", 123, 104, 238); + add_color("MediumSlateBlue", 123, 104, 238); + add_color("light slate blue", 132, 112, 255); + add_color("LightSlateBlue", 132, 112, 255); + add_color("medium blue", 0, 0, 205); + add_color("MediumBlue", 0, 0, 205); + add_color("royal blue", 65, 105, 225); + add_color("RoyalBlue", 65, 105, 225); + add_color("blue", 0, 0, 255); + add_color("dodger blue", 30, 144, 255); + add_color("DodgerBlue", 30, 144, 255); + add_color("deep sky blue", 0, 191, 255); + add_color("DeepSkyBlue", 0, 191, 255); + add_color("sky blue", 135, 206, 235); + add_color("SkyBlue", 135, 206, 235); + add_color("light sky blue", 135, 206, 250); + add_color("LightSkyBlue", 135, 206, 250); + add_color("steel blue", 70, 130, 180); + add_color("SteelBlue", 70, 130, 180); + add_color("light steel blue", 176, 196, 222); + add_color("LightSteelBlue", 176, 196, 222); + add_color("light blue", 173, 216, 230); + add_color("LightBlue", 173, 216, 230); + add_color("powder blue", 176, 224, 230); + add_color("PowderBlue", 176, 224, 230); + add_color("pale turquoise", 175, 238, 238); + add_color("PaleTurquoise", 175, 238, 238); + add_color("dark turquoise", 0, 206, 209); + add_color("DarkTurquoise", 0, 206, 209); + add_color("medium turquoise", 72, 209, 204); + add_color("MediumTurquoise", 72, 209, 204); + add_color("turquoise", 64, 224, 208); + add_color("cyan", 0, 255, 255); + add_color("aqua", 0, 255, 255); + add_color("light cyan", 224, 255, 255); + add_color("LightCyan", 224, 255, 255); + add_color("cadet blue", 95, 158, 160); + add_color("CadetBlue", 95, 158, 160); + add_color("medium aquamarine", 102, 205, 170); + add_color("MediumAquamarine", 102, 205, 170); + add_color("aquamarine", 127, 255, 212); + add_color("dark green", 0, 100, 0); + add_color("DarkGreen", 0, 100, 0); + add_color("dark olive green", 85, 107, 47); + add_color("DarkOliveGreen", 85, 107, 47); + add_color("dark sea green", 143, 188, 143); + add_color("DarkSeaGreen", 143, 188, 143); + add_color("sea green", 46, 139, 87); + add_color("SeaGreen", 46, 139, 87); + add_color("medium sea green", 60, 179, 113); + add_color("MediumSeaGreen", 60, 179, 113); + add_color("light sea green", 32, 178, 170); + add_color("LightSeaGreen", 32, 178, 170); + add_color("pale green", 152, 251, 152); + add_color("PaleGreen", 152, 251, 152); + add_color("spring green", 0, 255, 127); + add_color("SpringGreen", 0, 255, 127); + add_color("lawn green", 124, 252, 0); + add_color("LawnGreen", 124, 252, 0); + add_color("green", 0, 255, 0); + add_color("lime", 0, 255, 0); + add_color("x11 green", 0, 255, 0); + add_color("X11Green", 0, 255, 0); + add_color("web green", 0, 128, 0); + add_color("WebGreen", 0, 128, 0); + add_color("chartreuse", 127, 255, 0); + add_color("medium spring green", 0, 250, 154); + add_color("MediumSpringGreen", 0, 250, 154); + add_color("green yellow", 173, 255, 47); + add_color("GreenYellow", 173, 255, 47); + add_color("lime green", 50, 205, 50); + add_color("LimeGreen", 50, 205, 50); + add_color("yellow green", 154, 205, 50); + add_color("YellowGreen", 154, 205, 50); + add_color("forest green", 34, 139, 34); + add_color("ForestGreen", 34, 139, 34); + add_color("olive drab", 107, 142, 35); + add_color("OliveDrab", 107, 142, 35); + add_color("dark khaki", 189, 183, 107); + add_color("DarkKhaki", 189, 183, 107); + add_color("khaki", 240, 230, 140); + add_color("pale goldenrod", 238, 232, 170); + add_color("PaleGoldenrod", 238, 232, 170); + add_color("light goldenrod yellow", 250, 250, 210); + add_color("LightGoldenrodYellow", 250, 250, 210); + add_color("light yellow", 255, 255, 224); + add_color("LightYellow", 255, 255, 224); + add_color("yellow", 255, 255, 0); + add_color("gold", 255, 215, 0); + add_color("light goldenrod", 238, 221, 130); + add_color("LightGoldenrod", 238, 221, 130); + add_color("goldenrod", 218, 165, 32); + add_color("dark goldenrod", 184, 134, 11); + add_color("DarkGoldenrod", 184, 134, 11); + add_color("rosy brown", 188, 143, 143); + add_color("RosyBrown", 188, 143, 143); + add_color("indian red", 205, 92, 92); + add_color("IndianRed", 205, 92, 92); + add_color("saddle brown", 139, 69, 19); + add_color("SaddleBrown", 139, 69, 19); + add_color("sienna", 160, 82, 45); + add_color("peru", 205, 133, 63); + add_color("burlywood", 222, 184, 135); + add_color("beige", 245, 245, 220); + add_color("wheat", 245, 222, 179); + add_color("sandy brown", 244, 164, 96); + add_color("SandyBrown", 244, 164, 96); + add_color("tan", 210, 180, 140); + add_color("chocolate", 210, 105, 30); + add_color("firebrick", 178, 34, 34); + add_color("brown", 165, 42, 42); + add_color("dark salmon", 233, 150, 122); + add_color("DarkSalmon", 233, 150, 122); + add_color("salmon", 250, 128, 114); + add_color("light salmon", 255, 160, 122); + add_color("LightSalmon", 255, 160, 122); + add_color("orange", 255, 165, 0); + add_color("dark orange", 255, 140, 0); + add_color("DarkOrange", 255, 140, 0); + add_color("coral", 255, 127, 80); + add_color("light coral", 240, 128, 128); + add_color("LightCoral", 240, 128, 128); + add_color("tomato", 255, 99, 71); + add_color("orange red", 255, 69, 0); + add_color("OrangeRed", 255, 69, 0); + add_color("red", 255, 0, 0); + add_color("hot pink", 255, 105, 180); + add_color("HotPink", 255, 105, 180); + add_color("deep pink", 255, 20, 147); + add_color("DeepPink", 255, 20, 147); + add_color("pink", 255, 192, 203); + add_color("light pink", 255, 182, 193); + add_color("LightPink", 255, 182, 193); + add_color("pale violet red", 219, 112, 147); + add_color("PaleVioletRed", 219, 112, 147); + add_color("maroon", 176, 48, 96); + add_color("x11 maroon", 176, 48, 96); + add_color("X11Maroon", 176, 48, 96); + add_color("web maroon", 128, 0, 0); + add_color("WebMaroon", 128, 0, 0); + add_color("medium violet red", 199, 21, 133); + add_color("MediumVioletRed", 199, 21, 133); + add_color("violet red", 208, 32, 144); + add_color("VioletRed", 208, 32, 144); + add_color("magenta", 255, 0, 255); + add_color("fuchsia", 255, 0, 255); + add_color("violet", 238, 130, 238); + add_color("plum", 221, 160, 221); + add_color("orchid", 218, 112, 214); + add_color("medium orchid", 186, 85, 211); + add_color("MediumOrchid", 186, 85, 211); + add_color("dark orchid", 153, 50, 204); + add_color("DarkOrchid", 153, 50, 204); + add_color("dark violet", 148, 0, 211); + add_color("DarkViolet", 148, 0, 211); + add_color("blue violet", 138, 43, 226); + add_color("BlueViolet", 138, 43, 226); + add_color("purple", 160, 32, 240); + add_color("x11 purple", 160, 32, 240); + add_color("X11Purple", 160, 32, 240); + add_color("web purple", 128, 0, 128); + add_color("WebPurple", 128, 0, 128); + add_color("medium purple", 147, 112, 219); + add_color("MediumPurple", 147, 112, 219); + add_color("thistle", 216, 191, 216); + add_color("snow1", 255, 250, 250); + add_color("snow2", 238, 233, 233); + add_color("snow3", 205, 201, 201); + add_color("snow4", 139, 137, 137); + add_color("seashell1", 255, 245, 238); + add_color("seashell2", 238, 229, 222); + add_color("seashell3", 205, 197, 191); + add_color("seashell4", 139, 134, 130); + add_color("AntiqueWhite1", 255, 239, 219); + add_color("AntiqueWhite2", 238, 223, 204); + add_color("AntiqueWhite3", 205, 192, 176); + add_color("AntiqueWhite4", 139, 131, 120); + add_color("bisque1", 255, 228, 196); + add_color("bisque2", 238, 213, 183); + add_color("bisque3", 205, 183, 158); + add_color("bisque4", 139, 125, 107); + add_color("PeachPuff1", 255, 218, 185); + add_color("PeachPuff2", 238, 203, 173); + add_color("PeachPuff3", 205, 175, 149); + add_color("PeachPuff4", 139, 119, 101); + add_color("NavajoWhite1", 255, 222, 173); + add_color("NavajoWhite2", 238, 207, 161); + add_color("NavajoWhite3", 205, 179, 139); + add_color("NavajoWhite4", 139, 121, 94); + add_color("LemonChiffon1", 255, 250, 205); + add_color("LemonChiffon2", 238, 233, 191); + add_color("LemonChiffon3", 205, 201, 165); + add_color("LemonChiffon4", 139, 137, 112); + add_color("cornsilk1", 255, 248, 220); + add_color("cornsilk2", 238, 232, 205); + add_color("cornsilk3", 205, 200, 177); + add_color("cornsilk4", 139, 136, 120); + add_color("ivory1", 255, 255, 240); + add_color("ivory2", 238, 238, 224); + add_color("ivory3", 205, 205, 193); + add_color("ivory4", 139, 139, 131); + add_color("honeydew1", 240, 255, 240); + add_color("honeydew2", 224, 238, 224); + add_color("honeydew3", 193, 205, 193); + add_color("honeydew4", 131, 139, 131); + add_color("LavenderBlush1", 255, 240, 245); + add_color("LavenderBlush2", 238, 224, 229); + add_color("LavenderBlush3", 205, 193, 197); + add_color("LavenderBlush4", 139, 131, 134); + add_color("MistyRose1", 255, 228, 225); + add_color("MistyRose2", 238, 213, 210); + add_color("MistyRose3", 205, 183, 181); + add_color("MistyRose4", 139, 125, 123); + add_color("azure1", 240, 255, 255); + add_color("azure2", 224, 238, 238); + add_color("azure3", 193, 205, 205); + add_color("azure4", 131, 139, 139); + add_color("SlateBlue1", 131, 111, 255); + add_color("SlateBlue2", 122, 103, 238); + add_color("SlateBlue3", 105, 89, 205); + add_color("SlateBlue4", 71, 60, 139); + add_color("RoyalBlue1", 72, 118, 255); + add_color("RoyalBlue2", 67, 110, 238); + add_color("RoyalBlue3", 58, 95, 205); + add_color("RoyalBlue4", 39, 64, 139); + add_color("blue1", 0, 0, 255); + add_color("blue2", 0, 0, 238); + add_color("blue3", 0, 0, 205); + add_color("blue4", 0, 0, 139); + add_color("DodgerBlue1", 30, 144, 255); + add_color("DodgerBlue2", 28, 134, 238); + add_color("DodgerBlue3", 24, 116, 205); + add_color("DodgerBlue4", 16, 78, 139); + add_color("SteelBlue1", 99, 184, 255); + add_color("SteelBlue2", 92, 172, 238); + add_color("SteelBlue3", 79, 148, 205); + add_color("SteelBlue4", 54, 100, 139); + add_color("DeepSkyBlue1", 0, 191, 255); + add_color("DeepSkyBlue2", 0, 178, 238); + add_color("DeepSkyBlue3", 0, 154, 205); + add_color("DeepSkyBlue4", 0, 104, 139); + add_color("SkyBlue1", 135, 206, 255); + add_color("SkyBlue2", 126, 192, 238); + add_color("SkyBlue3", 108, 166, 205); + add_color("SkyBlue4", 74, 112, 139); + add_color("LightSkyBlue1", 176, 226, 255); + add_color("LightSkyBlue2", 164, 211, 238); + add_color("LightSkyBlue3", 141, 182, 205); + add_color("LightSkyBlue4", 96, 123, 139); + add_color("SlateGray1", 198, 226, 255); + add_color("SlateGray2", 185, 211, 238); + add_color("SlateGray3", 159, 182, 205); + add_color("SlateGray4", 108, 123, 139); + add_color("LightSteelBlue1", 202, 225, 255); + add_color("LightSteelBlue2", 188, 210, 238); + add_color("LightSteelBlue3", 162, 181, 205); + add_color("LightSteelBlue4", 110, 123, 139); + add_color("LightBlue1", 191, 239, 255); + add_color("LightBlue2", 178, 223, 238); + add_color("LightBlue3", 154, 192, 205); + add_color("LightBlue4", 104, 131, 139); + add_color("LightCyan1", 224, 255, 255); + add_color("LightCyan2", 209, 238, 238); + add_color("LightCyan3", 180, 205, 205); + add_color("LightCyan4", 122, 139, 139); + add_color("PaleTurquoise1", 187, 255, 255); + add_color("PaleTurquoise2", 174, 238, 238); + add_color("PaleTurquoise3", 150, 205, 205); + add_color("PaleTurquoise4", 102, 139, 139); + add_color("CadetBlue1", 152, 245, 255); + add_color("CadetBlue2", 142, 229, 238); + add_color("CadetBlue3", 122, 197, 205); + add_color("CadetBlue4", 83, 134, 139); + add_color("turquoise1", 0, 245, 255); + add_color("turquoise2", 0, 229, 238); + add_color("turquoise3", 0, 197, 205); + add_color("turquoise4", 0, 134, 139); + add_color("cyan1", 0, 255, 255); + add_color("cyan2", 0, 238, 238); + add_color("cyan3", 0, 205, 205); + add_color("cyan4", 0, 139, 139); + add_color("DarkSlateGray1", 151, 255, 255); + add_color("DarkSlateGray2", 141, 238, 238); + add_color("DarkSlateGray3", 121, 205, 205); + add_color("DarkSlateGray4", 82, 139, 139); + add_color("aquamarine1", 127, 255, 212); + add_color("aquamarine2", 118, 238, 198); + add_color("aquamarine3", 102, 205, 170); + add_color("aquamarine4", 69, 139, 116); + add_color("DarkSeaGreen1", 193, 255, 193); + add_color("DarkSeaGreen2", 180, 238, 180); + add_color("DarkSeaGreen3", 155, 205, 155); + add_color("DarkSeaGreen4", 105, 139, 105); + add_color("SeaGreen1", 84, 255, 159); + add_color("SeaGreen2", 78, 238, 148); + add_color("SeaGreen3", 67, 205, 128); + add_color("SeaGreen4", 46, 139, 87); + add_color("PaleGreen1", 154, 255, 154); + add_color("PaleGreen2", 144, 238, 144); + add_color("PaleGreen3", 124, 205, 124); + add_color("PaleGreen4", 84, 139, 84); + add_color("SpringGreen1", 0, 255, 127); + add_color("SpringGreen2", 0, 238, 118); + add_color("SpringGreen3", 0, 205, 102); + add_color("SpringGreen4", 0, 139, 69); + add_color("green1", 0, 255, 0); + add_color("green2", 0, 238, 0); + add_color("green3", 0, 205, 0); + add_color("green4", 0, 139, 0); + add_color("chartreuse1", 127, 255, 0); + add_color("chartreuse2", 118, 238, 0); + add_color("chartreuse3", 102, 205, 0); + add_color("chartreuse4", 69, 139, 0); + add_color("OliveDrab1", 192, 255, 62); + add_color("OliveDrab2", 179, 238, 58); + add_color("OliveDrab3", 154, 205, 50); + add_color("OliveDrab4", 105, 139, 34); + add_color("DarkOliveGreen1", 202, 255, 112); + add_color("DarkOliveGreen2", 188, 238, 104); + add_color("DarkOliveGreen3", 162, 205, 90); + add_color("DarkOliveGreen4", 110, 139, 61); + add_color("khaki1", 255, 246, 143); + add_color("khaki2", 238, 230, 133); + add_color("khaki3", 205, 198, 115); + add_color("khaki4", 139, 134, 78); + add_color("LightGoldenrod1", 255, 236, 139); + add_color("LightGoldenrod2", 238, 220, 130); + add_color("LightGoldenrod3", 205, 190, 112); + add_color("LightGoldenrod4", 139, 129, 76); + add_color("LightYellow1", 255, 255, 224); + add_color("LightYellow2", 238, 238, 209); + add_color("LightYellow3", 205, 205, 180); + add_color("LightYellow4", 139, 139, 122); + add_color("yellow1", 255, 255, 0); + add_color("yellow2", 238, 238, 0); + add_color("yellow3", 205, 205, 0); + add_color("yellow4", 139, 139, 0); + add_color("gold1", 255, 215, 0); + add_color("gold2", 238, 201, 0); + add_color("gold3", 205, 173, 0); + add_color("gold4", 139, 117, 0); + add_color("goldenrod1", 255, 193, 37); + add_color("goldenrod2", 238, 180, 34); + add_color("goldenrod3", 205, 155, 29); + add_color("goldenrod4", 139, 105, 20); + add_color("DarkGoldenrod1", 255, 185, 15); + add_color("DarkGoldenrod2", 238, 173, 14); + add_color("DarkGoldenrod3", 205, 149, 12); + add_color("DarkGoldenrod4", 139, 101, 8); + add_color("RosyBrown1", 255, 193, 193); + add_color("RosyBrown2", 238, 180, 180); + add_color("RosyBrown3", 205, 155, 155); + add_color("RosyBrown4", 139, 105, 105); + add_color("IndianRed1", 255, 106, 106); + add_color("IndianRed2", 238, 99, 99); + add_color("IndianRed3", 205, 85, 85); + add_color("IndianRed4", 139, 58, 58); + add_color("sienna1", 255, 130, 71); + add_color("sienna2", 238, 121, 66); + add_color("sienna3", 205, 104, 57); + add_color("sienna4", 139, 71, 38); + add_color("burlywood1", 255, 211, 155); + add_color("burlywood2", 238, 197, 145); + add_color("burlywood3", 205, 170, 125); + add_color("burlywood4", 139, 115, 85); + add_color("wheat1", 255, 231, 186); + add_color("wheat2", 238, 216, 174); + add_color("wheat3", 205, 186, 150); + add_color("wheat4", 139, 126, 102); + add_color("tan1", 255, 165, 79); + add_color("tan2", 238, 154, 73); + add_color("tan3", 205, 133, 63); + add_color("tan4", 139, 90, 43); + add_color("chocolate1", 255, 127, 36); + add_color("chocolate2", 238, 118, 33); + add_color("chocolate3", 205, 102, 29); + add_color("chocolate4", 139, 69, 19); + add_color("firebrick1", 255, 48, 48); + add_color("firebrick2", 238, 44, 44); + add_color("firebrick3", 205, 38, 38); + add_color("firebrick4", 139, 26, 26); + add_color("brown1", 255, 64, 64); + add_color("brown2", 238, 59, 59); + add_color("brown3", 205, 51, 51); + add_color("brown4", 139, 35, 35); + add_color("salmon1", 255, 140, 105); + add_color("salmon2", 238, 130, 98); + add_color("salmon3", 205, 112, 84); + add_color("salmon4", 139, 76, 57); + add_color("LightSalmon1", 255, 160, 122); + add_color("LightSalmon2", 238, 149, 114); + add_color("LightSalmon3", 205, 129, 98); + add_color("LightSalmon4", 139, 87, 66); + add_color("orange1", 255, 165, 0); + add_color("orange2", 238, 154, 0); + add_color("orange3", 205, 133, 0); + add_color("orange4", 139, 90, 0); + add_color("DarkOrange1", 255, 127, 0); + add_color("DarkOrange2", 238, 118, 0); + add_color("DarkOrange3", 205, 102, 0); + add_color("DarkOrange4", 139, 69, 0); + add_color("coral1", 255, 114, 86); + add_color("coral2", 238, 106, 80); + add_color("coral3", 205, 91, 69); + add_color("coral4", 139, 62, 47); + add_color("tomato1", 255, 99, 71); + add_color("tomato2", 238, 92, 66); + add_color("tomato3", 205, 79, 57); + add_color("tomato4", 139, 54, 38); + add_color("OrangeRed1", 255, 69, 0); + add_color("OrangeRed2", 238, 64, 0); + add_color("OrangeRed3", 205, 55, 0); + add_color("OrangeRed4", 139, 37, 0); + add_color("red1", 255, 0, 0); + add_color("red2", 238, 0, 0); + add_color("red3", 205, 0, 0); + add_color("red4", 139, 0, 0); + add_color("DeepPink1", 255, 20, 147); + add_color("DeepPink2", 238, 18, 137); + add_color("DeepPink3", 205, 16, 118); + add_color("DeepPink4", 139, 10, 80); + add_color("HotPink1", 255, 110, 180); + add_color("HotPink2", 238, 106, 167); + add_color("HotPink3", 205, 96, 144); + add_color("HotPink4", 139, 58, 98); + add_color("pink1", 255, 181, 197); + add_color("pink2", 238, 169, 184); + add_color("pink3", 205, 145, 158); + add_color("pink4", 139, 99, 108); + add_color("LightPink1", 255, 174, 185); + add_color("LightPink2", 238, 162, 173); + add_color("LightPink3", 205, 140, 149); + add_color("LightPink4", 139, 95, 101); + add_color("PaleVioletRed1", 255, 130, 171); + add_color("PaleVioletRed2", 238, 121, 159); + add_color("PaleVioletRed3", 205, 104, 137); + add_color("PaleVioletRed4", 139, 71, 93); + add_color("maroon1", 255, 52, 179); + add_color("maroon2", 238, 48, 167); + add_color("maroon3", 205, 41, 144); + add_color("maroon4", 139, 28, 98); + add_color("VioletRed1", 255, 62, 150); + add_color("VioletRed2", 238, 58, 140); + add_color("VioletRed3", 205, 50, 120); + add_color("VioletRed4", 139, 34, 82); + add_color("magenta1", 255, 0, 255); + add_color("magenta2", 238, 0, 238); + add_color("magenta3", 205, 0, 205); + add_color("magenta4", 139, 0, 139); + add_color("orchid1", 255, 131, 250); + add_color("orchid2", 238, 122, 233); + add_color("orchid3", 205, 105, 201); + add_color("orchid4", 139, 71, 137); + add_color("plum1", 255, 187, 255); + add_color("plum2", 238, 174, 238); + add_color("plum3", 205, 150, 205); + add_color("plum4", 139, 102, 139); + add_color("MediumOrchid1", 224, 102, 255); + add_color("MediumOrchid2", 209, 95, 238); + add_color("MediumOrchid3", 180, 82, 205); + add_color("MediumOrchid4", 122, 55, 139); + add_color("DarkOrchid1", 191, 62, 255); + add_color("DarkOrchid2", 178, 58, 238); + add_color("DarkOrchid3", 154, 50, 205); + add_color("DarkOrchid4", 104, 34, 139); + add_color("purple1", 155, 48, 255); + add_color("purple2", 145, 44, 238); + add_color("purple3", 125, 38, 205); + add_color("purple4", 85, 26, 139); + add_color("MediumPurple1", 171, 130, 255); + add_color("MediumPurple2", 159, 121, 238); + add_color("MediumPurple3", 137, 104, 205); + add_color("MediumPurple4", 93, 71, 139); + add_color("thistle1", 255, 225, 255); + add_color("thistle2", 238, 210, 238); + add_color("thistle3", 205, 181, 205); + add_color("thistle4", 139, 123, 139); + add_color("gray0", 0, 0, 0); + add_color("grey0", 0, 0, 0); + add_color("gray1", 3, 3, 3); + add_color("grey1", 3, 3, 3); + add_color("gray2", 5, 5, 5); + add_color("grey2", 5, 5, 5); + add_color("gray3", 8, 8, 8); + add_color("grey3", 8, 8, 8); + add_color("gray4", 10, 10, 10); + add_color("grey4", 10, 10, 10); + add_color("gray5", 13, 13, 13); + add_color("grey5", 13, 13, 13); + add_color("gray6", 15, 15, 15); + add_color("grey6", 15, 15, 15); + add_color("gray7", 18, 18, 18); + add_color("grey7", 18, 18, 18); + add_color("gray8", 20, 20, 20); + add_color("grey8", 20, 20, 20); + add_color("gray9", 23, 23, 23); + add_color("grey9", 23, 23, 23); + add_color("gray10", 26, 26, 26); + add_color("grey10", 26, 26, 26); + add_color("gray11", 28, 28, 28); + add_color("grey11", 28, 28, 28); + add_color("gray12", 31, 31, 31); + add_color("grey12", 31, 31, 31); + add_color("gray13", 33, 33, 33); + add_color("grey13", 33, 33, 33); + add_color("gray14", 36, 36, 36); + add_color("grey14", 36, 36, 36); + add_color("gray15", 38, 38, 38); + add_color("grey15", 38, 38, 38); + add_color("gray16", 41, 41, 41); + add_color("grey16", 41, 41, 41); + add_color("gray17", 43, 43, 43); + add_color("grey17", 43, 43, 43); + add_color("gray18", 46, 46, 46); + add_color("grey18", 46, 46, 46); + add_color("gray19", 48, 48, 48); + add_color("grey19", 48, 48, 48); + add_color("gray20", 51, 51, 51); + add_color("grey20", 51, 51, 51); + add_color("gray21", 54, 54, 54); + add_color("grey21", 54, 54, 54); + add_color("gray22", 56, 56, 56); + add_color("grey22", 56, 56, 56); + add_color("gray23", 59, 59, 59); + add_color("grey23", 59, 59, 59); + add_color("gray24", 61, 61, 61); + add_color("grey24", 61, 61, 61); + add_color("gray25", 64, 64, 64); + add_color("grey25", 64, 64, 64); + add_color("gray26", 66, 66, 66); + add_color("grey26", 66, 66, 66); + add_color("gray27", 69, 69, 69); + add_color("grey27", 69, 69, 69); + add_color("gray28", 71, 71, 71); + add_color("grey28", 71, 71, 71); + add_color("gray29", 74, 74, 74); + add_color("grey29", 74, 74, 74); + add_color("gray30", 77, 77, 77); + add_color("grey30", 77, 77, 77); + add_color("gray31", 79, 79, 79); + add_color("grey31", 79, 79, 79); + add_color("gray32", 82, 82, 82); + add_color("grey32", 82, 82, 82); + add_color("gray33", 84, 84, 84); + add_color("grey33", 84, 84, 84); + add_color("gray34", 87, 87, 87); + add_color("grey34", 87, 87, 87); + add_color("gray35", 89, 89, 89); + add_color("grey35", 89, 89, 89); + add_color("gray36", 92, 92, 92); + add_color("grey36", 92, 92, 92); + add_color("gray37", 94, 94, 94); + add_color("grey37", 94, 94, 94); + add_color("gray38", 97, 97, 97); + add_color("grey38", 97, 97, 97); + add_color("gray39", 99, 99, 99); + add_color("grey39", 99, 99, 99); + add_color("gray40", 102, 102, 102); + add_color("grey40", 102, 102, 102); + add_color("gray41", 105, 105, 105); + add_color("grey41", 105, 105, 105); + add_color("gray42", 107, 107, 107); + add_color("grey42", 107, 107, 107); + add_color("gray43", 110, 110, 110); + add_color("grey43", 110, 110, 110); + add_color("gray44", 112, 112, 112); + add_color("grey44", 112, 112, 112); + add_color("gray45", 115, 115, 115); + add_color("grey45", 115, 115, 115); + add_color("gray46", 117, 117, 117); + add_color("grey46", 117, 117, 117); + add_color("gray47", 120, 120, 120); + add_color("grey47", 120, 120, 120); + add_color("gray48", 122, 122, 122); + add_color("grey48", 122, 122, 122); + add_color("gray49", 125, 125, 125); + add_color("grey49", 125, 125, 125); + add_color("gray50", 127, 127, 127); + add_color("grey50", 127, 127, 127); + add_color("gray51", 130, 130, 130); + add_color("grey51", 130, 130, 130); + add_color("gray52", 133, 133, 133); + add_color("grey52", 133, 133, 133); + add_color("gray53", 135, 135, 135); + add_color("grey53", 135, 135, 135); + add_color("gray54", 138, 138, 138); + add_color("grey54", 138, 138, 138); + add_color("gray55", 140, 140, 140); + add_color("grey55", 140, 140, 140); + add_color("gray56", 143, 143, 143); + add_color("grey56", 143, 143, 143); + add_color("gray57", 145, 145, 145); + add_color("grey57", 145, 145, 145); + add_color("gray58", 148, 148, 148); + add_color("grey58", 148, 148, 148); + add_color("gray59", 150, 150, 150); + add_color("grey59", 150, 150, 150); + add_color("gray60", 153, 153, 153); + add_color("grey60", 153, 153, 153); + add_color("gray61", 156, 156, 156); + add_color("grey61", 156, 156, 156); + add_color("gray62", 158, 158, 158); + add_color("grey62", 158, 158, 158); + add_color("gray63", 161, 161, 161); + add_color("grey63", 161, 161, 161); + add_color("gray64", 163, 163, 163); + add_color("grey64", 163, 163, 163); + add_color("gray65", 166, 166, 166); + add_color("grey65", 166, 166, 166); + add_color("gray66", 168, 168, 168); + add_color("grey66", 168, 168, 168); + add_color("gray67", 171, 171, 171); + add_color("grey67", 171, 171, 171); + add_color("gray68", 173, 173, 173); + add_color("grey68", 173, 173, 173); + add_color("gray69", 176, 176, 176); + add_color("grey69", 176, 176, 176); + add_color("gray70", 179, 179, 179); + add_color("grey70", 179, 179, 179); + add_color("gray71", 181, 181, 181); + add_color("grey71", 181, 181, 181); + add_color("gray72", 184, 184, 184); + add_color("grey72", 184, 184, 184); + add_color("gray73", 186, 186, 186); + add_color("grey73", 186, 186, 186); + add_color("gray74", 189, 189, 189); + add_color("grey74", 189, 189, 189); + add_color("gray75", 191, 191, 191); + add_color("grey75", 191, 191, 191); + add_color("gray76", 194, 194, 194); + add_color("grey76", 194, 194, 194); + add_color("gray77", 196, 196, 196); + add_color("grey77", 196, 196, 196); + add_color("gray78", 199, 199, 199); + add_color("grey78", 199, 199, 199); + add_color("gray79", 201, 201, 201); + add_color("grey79", 201, 201, 201); + add_color("gray80", 204, 204, 204); + add_color("grey80", 204, 204, 204); + add_color("gray81", 207, 207, 207); + add_color("grey81", 207, 207, 207); + add_color("gray82", 209, 209, 209); + add_color("grey82", 209, 209, 209); + add_color("gray83", 212, 212, 212); + add_color("grey83", 212, 212, 212); + add_color("gray84", 214, 214, 214); + add_color("grey84", 214, 214, 214); + add_color("gray85", 217, 217, 217); + add_color("grey85", 217, 217, 217); + add_color("gray86", 219, 219, 219); + add_color("grey86", 219, 219, 219); + add_color("gray87", 222, 222, 222); + add_color("grey87", 222, 222, 222); + add_color("gray88", 224, 224, 224); + add_color("grey88", 224, 224, 224); + add_color("gray89", 227, 227, 227); + add_color("grey89", 227, 227, 227); + add_color("gray90", 229, 229, 229); + add_color("grey90", 229, 229, 229); + add_color("gray91", 232, 232, 232); + add_color("grey91", 232, 232, 232); + add_color("gray92", 235, 235, 235); + add_color("grey92", 235, 235, 235); + add_color("gray93", 237, 237, 237); + add_color("grey93", 237, 237, 237); + add_color("gray94", 240, 240, 240); + add_color("grey94", 240, 240, 240); + add_color("gray95", 242, 242, 242); + add_color("grey95", 242, 242, 242); + add_color("gray96", 245, 245, 245); + add_color("grey96", 245, 245, 245); + add_color("gray97", 247, 247, 247); + add_color("grey97", 247, 247, 247); + add_color("gray98", 250, 250, 250); + add_color("grey98", 250, 250, 250); + add_color("gray99", 252, 252, 252); + add_color("grey99", 252, 252, 252); + add_color("gray100", 255, 255, 255); + add_color("grey100", 255, 255, 255); + add_color("dark grey", 169, 169, 169); + add_color("DarkGrey", 169, 169, 169); + add_color("dark gray", 169, 169, 169); + add_color("DarkGray", 169, 169, 169); + add_color("dark blue", 0, 0, 139); + add_color("DarkBlue", 0, 0, 139); + add_color("dark cyan", 0, 139, 139); + add_color("DarkCyan", 0, 139, 139); + add_color("dark magenta", 139, 0, 139); + add_color("DarkMagenta", 139, 0, 139); + add_color("dark red", 139, 0, 0); + add_color("DarkRed", 139, 0, 0); + add_color("light green", 144, 238, 144); + add_color("LightGreen", 144, 238, 144); + add_color("crimson", 220, 20, 60); + add_color("indigo", 75, 0, 130); + add_color("olive", 128, 128, 0); + add_color("rebecca purple", 102, 51, 153); + add_color("RebeccaPurple", 102, 51, 153); + add_color("silver", 192, 192, 192); + add_color("teal", 0, 128, 128); } diff --git a/src/core.c b/src/core.c index dd0f67ae3..c27b1a60f 100644 --- a/src/core.c +++ b/src/core.c @@ -1006,14 +1006,10 @@ void MwDispatchError(int code, const char* message) { if(error_handler != NULL) { error_handler(code, message, error_user_data); } else { -#if defined(_WIN32) || defined(__WINDOWS__) +#ifdef _WIN32 char buffer[1024]; MwStringPrintIntoBuffer(buffer, 1024, "Error: %s\r\nCode : %d\r\n\r\nMilsko is exiting.", message, code); -#if defined(__WINDOWS__) - MessageBox(NULL, buffer, "Error", MB_ICONHAND | MB_OK); -#else MessageBox(NULL, buffer, "Error", MB_ICONERROR | MB_OK); -#endif #else fprintf(stderr, "Error: %s\nCode : %d\n\nMilsko is exiting.", message, code); #endif @@ -1093,17 +1089,15 @@ int MwLibraryInit(void) { NULL}; int i; -#if defined(_WIN32) || defined(__WINDOWS__) - /* +#ifdef _WIN32 + /* There's no Windows configuration that Milsko supports that doesn't have winmm. - This could maybe be removed? However if we ever get any proof of concept working on Win2.0 - this could be useful. + However, uhh, Visual Studio 2022. For some fucking reason. + Thanks for coming to my TED Talk. */ - MwLL_winmmLib = LoadLibrary("winmm.dll"); - MwLL_PFN_timeGetTime = (void*)GetProcAddress(MwLL_winmmLib, "timeGetTime"); - MwLL_PFN_timeBeginPeriod = (void*)GetProcAddress(MwLL_winmmLib, "timeBeginPeriod"); - assert(MwLL_PFN_timeGetTime); - assert(MwLL_PFN_timeBeginPeriod); + MwLL_winmmLib = LoadLibrary("winmm.dll"); + MwLL_PFN_timeGetTime = (void *)GetProcAddress(MwLL_winmmLib, "timeGetTime"); + MwLL_PFN_timeBeginPeriod = (void *)GetProcAddress(MwLL_winmmLib, "timeBeginPeriod"); MwLL_PFN_timeBeginPeriod(10); #endif @@ -1118,9 +1112,7 @@ int MwLibraryInit(void) { MwColorTableInit(); -#ifndef MW_16 MwFLSetup(); -#endif for(i = 0; calls[i] != NULL; i++) { if(calls[i]() == 0) return 0; diff --git a/src/dialog/colorpicker.c b/src/dialog/colorpicker.c index a409936c3..95fc2838a 100644 --- a/src/dialog/colorpicker.c +++ b/src/dialog/colorpicker.c @@ -1,7 +1,5 @@ #include -#ifndef MW_16 - #define WIN_SIZE 464 #define PICKER_SIZE 364 #define IMG_POS_X(w) ((w - PICKER_SIZE) / 2) @@ -380,5 +378,3 @@ MwWidget MwColorPicker(MwWidget handle, const char* title) { return window; } - -#endif diff --git a/src/dialog/filechooser.c b/src/dialog/filechooser.c index b3bd49a41..138fc6cf0 100644 --- a/src/dialog/filechooser.c +++ b/src/dialog/filechooser.c @@ -146,7 +146,7 @@ static void MWAPI nav_activate(MwWidget handle, void* user, void* call) { (void)user; if(strcmp(e, "Home") == 0) { -#if defined(_WIN32) || defined(CLASSIC_MAC_OS) || defined(__WINDOWS__) +#if defined(_WIN32) || defined(CLASSIC_MAC_OS) #else struct passwd* p = getpwuid(getuid()); @@ -505,9 +505,8 @@ static void scan(MwWidget handle, const char* path, int record) { } static void setup_fallback_filechooser(MwWidget window, int dir) { - char* path; - MwLLPixmap icon; - + char* path; + MwLLPixmap icon; filechooser_t* fc = malloc(sizeof(*fc)); memset(fc, 0, sizeof(*fc)); diff --git a/src/draw.c b/src/draw.c index c6de78f3f..2314c0281 100644 --- a/src/draw.c +++ b/src/draw.c @@ -124,7 +124,7 @@ void MwDrawRectFading(MwWidget handle, MwRect* rect, MwLLColor color) { int ColorDiff = get_color_diff(handle); double darkenStep = (ColorDiff / 2.) / rect->height; unsigned long sz = 1 * rect->height * 4; - unsigned char* data = malloc(sz * 2); + unsigned char* data = malloc(sz*2); MwRect r = *rect; if(!data) { return; @@ -952,8 +952,8 @@ MwLLPixmap MwLoadXPM(MwWidget handle, char** data) { } } - rgb = malloc(row * col * 4); - comp = malloc(cpp + 1); + rgb = malloc(row * col * 4); + comp = malloc(cpp + 1); if(!rgb || !comp) { printf("Null malloc! Out of memory?"); return NULL; diff --git a/src/lowlevel.c b/src/lowlevel.c index d6846ceea..2fe153563 100644 --- a/src/lowlevel.c +++ b/src/lowlevel.c @@ -1,9 +1,9 @@ #include -#if defined(WIN32) || defined(__WINDOWS__) -void* MwLL_winmmLib; -long(WINAPI* MwLL_PFN_timeGetTime)(void); -unsigned int(WINAPI* MwLL_PFN_timeBeginPeriod)(unsigned int period); +#ifdef _WIN32 +void *MwLL_winmmLib; +long (__stdcall* MwLL_PFN_timeGetTime)(void); +unsigned int (__stdcall* MwLL_PFN_timeBeginPeriod)(unsigned int period); #endif MwLL (*MwLLCreate)(MwLL parent, int x, int y, int width, int height) = NULL; diff --git a/src/text/text.c b/src/text/text.c index 156caa1aa..2bb89b646 100644 --- a/src/text/text.c +++ b/src/text/text.c @@ -1,15 +1,13 @@ #include -#ifndef __WINDOWS int (*MwFLDrawText)(MwWidget handle, MwFLFont font, MwPoint* point, const char* text, MwLLColor color) = NULL; int (*MwFLTextWidth)(MwFLFont font, const char* text) = NULL; int (*MwFLTextHeight)(MwFLFont font, int count) = NULL; int (*MwFLTextHeightWithText)(MwFLFont ttf, const char* text) = NULL; void* (*MwFLFontLoad)(unsigned char* data, unsigned int size, int px) = NULL; void (*MwFLFontFree)(void* handle) = NULL; -#endif -#if (defined(USE_FREETYPE2) || defined(USE_STB_TRUETYPE)) +#if defined(USE_FREETYPE2) || defined(USE_STB_TRUETYPE) || defined(USE_GDI_TEXT) #define TTF #endif @@ -315,7 +313,6 @@ static void bitmap_MwDrawText(MwWidget handle, MwPoint* point, const char* text, free(px); } -#ifndef __INWDOWS__ typedef int (*call_t)(void); void MwFLSetup(void) { call_t calls[] = { @@ -335,4 +332,3 @@ void MwFLSetup(void) { if(calls[i]() == 0) return; } } -#endif diff --git a/src/widget/label.c b/src/widget/label.c index c54fbb22d..a0be9ca58 100644 --- a/src/widget/label.c +++ b/src/widget/label.c @@ -122,7 +122,6 @@ static void draw_h(MwWidget handle, unsigned char* raw, int x, int y, int stride } } -#ifndef HAVE_SEVEN_SEGMENT static void draw_seven_segment(MwWidget handle) { MwRect r; MwLLColor base = MwParseColor(handle, MwGetText(handle, MwNbackground)); @@ -312,7 +311,6 @@ static void draw_seven_segment(MwWidget handle) { MwLLDestroyPixmap(px); } -#endif static void draw_normal(MwWidget handle) { MwRect r; @@ -379,11 +377,9 @@ static void prop_change(MwWidget handle, const char* key) { if(strcmp(key, MwNsevenSegment) == 0) { MwLabel lab = handle->internal; -#ifndef HAVE_SEVEN_SEGMENT if(MwGetInteger(handle, MwNsevenSegment)) lab->draw = draw_seven_segment; else -#endif lab->draw = draw_normal; } } diff --git a/tools/genmk.pl b/tools/genmk.pl index be913ea46..689e09ef7 100755 --- a/tools/genmk.pl +++ b/tools/genmk.pl @@ -112,33 +112,15 @@ sub generate { } open(OUT, ">", $output); - if ($type eq "Watcom") { - print(OUT "!ifndef %mw16\n"); - print(OUT "CC = $cc\n"); - print(OUT "!else\n"); - print(OUT "CC = wcc -bt=windows -q\n"); - print(OUT "!endif\n"); - } else { - print(OUT "CC = $cc\n"); - } + print(OUT "CC = $cc\n"); print(OUT "LD = $link\n"); print(OUT "\n"); - if ($type eq "Watcom") { - print(OUT "!ifndef %mw16\n"); - } print(OUT "MW_CFLAGS = ${cdll} ${inc}include ${inc}external${dir}libz${dir}include ${def}_MILSKO ${def}_MILSKO_BUILD ${def}USE_GDI ${def}USE_STB_IMAGE ${def}STBI_NO_SIMD ${def}USE_GDI_TEXT ${def}MW_OPENGL\n" ); print(OUT "MW_LDFLAGS = $dll\n"); print(OUT "EXE_CFLAGS = ${inc}include\n"); - print(OUT "EXE_LDFLAGS = $exe\n"); - if ($type eq "Watcom") { - print(OUT "!else\n"); - print(OUT "MW_CFLAGS = -bd ${inc}include ${inc}external/libz/include ${def}_MILSKO ${def}_MILSKO_BUILD ${def}USE_GDI ${def}STBI_NO_SIMD ${def}NO_IMAGE ${def}MW_16\n"); - print(OUT "MW_LDFLAGS = system windows_dll\n"); - print(OUT "EXE_LDFLAGS = system windows\n"); - print(OUT "!endif\n"); - } + print(OUT "EXE_LDFLAGS = $exe"); print(OUT "\n"); if ($suffix) { @@ -205,24 +187,11 @@ sub generate { print(OUT "\n"); } print(OUT "\n"); - if ($type eq "Watcom") { - print(OUT "!ifndef %mw16\n"); - } print(OUT "src${dir}Mw.dll: " . cobjs($dir) . "\n"); print( OUT " \$(LD) \$(MW_LDFLAGS) $c_dllout $dllout\$@ " . cobjs($dir, $prefobj) . " $needlibs ${lib}opengl32.lib ${lib}gdi32.lib ${lib}ole32.lib ${lib}uuid.lib ${lib}user32.lib ${lib}advapi32.lib\n" ); - if ($type eq "Watcom") { - print(OUT "!else\n"); - print(OUT "src${dir}Mw.dll: " . cobjs($dir) . "\n"); - print( OUT " \$(LD) \$(MW_LDFLAGS) $c_dllout $dllout\$@ " - . cobjs($dir, $prefobj) - . " $needlibs ${lib}clibs.lib\n" - ); - print(OUT "\n"); - print(OUT "!endif\n"); - } print(OUT " $c_dllafter\n"); print(OUT "\n");