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dynload freetype2
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IoI_xD 2026-03-31 12:44:32 -07:00
commit 9d7d4541e4
2 changed files with 39 additions and 12 deletions
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6
pl/rules.pl
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@ -78,12 +78,8 @@ add_incdir("-Iexternal/libz/include");
if (param_get("freetype2")) {
add_cflags("-DUSE_FREETYPE2");
if ($cross) {
add_libs("-lfreetype");
}
else {
if (!$cross) {
add_cflags(`pkg-config --cflags freetype2`);
add_libs(`pkg-config --libs freetype2`);
}
}

45
src/text/ft2.c
View file

@ -4,6 +4,24 @@
#include <ft2build.h>
#include FT_FREETYPE_H
static struct {
FT_Error (*FT_Init_FreeType)(FT_Library* alibrary);
FT_Error (*FT_New_Memory_Face)(FT_Library library,
const FT_Byte* file_base,
FT_Long file_size,
FT_Long face_index,
FT_Face* aface);
FT_Error (*FT_Set_Pixel_Sizes)(FT_Face face,
FT_UInt pixel_width,
FT_UInt pixel_height);
FT_Error (*FT_Load_Char)(FT_Face face,
FT_ULong char_code,
FT_Int32 load_flags);
FT_Error (*FT_Done_Face)(FT_Face face);
FT_Error (*FT_Done_FreeType)(FT_Library library);
} ft_table;
struct _MwFLFont {
FT_Library library;
FT_Face face;
@ -37,7 +55,7 @@ static int ft2_MwDrawText(MwWidget handle, MwPoint* point, const char* text, int
continue;
}
FT_Load_Char(ttf->face, c, FT_LOAD_RENDER);
ft_table.FT_Load_Char(ttf->face, c, FT_LOAD_RENDER);
bmp = &ttf->face->glyph->bitmap;
for(cy = 0; cy < bmp->rows; cy++) {
@ -90,7 +108,7 @@ static int ft2_MwTextWidth(MwWidget handle, const char* text) {
continue;
}
FT_Load_Char(ttf->face, c, FT_LOAD_RENDER);
ft_table.FT_Load_Char(ttf->face, c, FT_LOAD_RENDER);
tw += ttf->face->glyph->metrics.horiAdvance / 64;
if(tw > mtw) mtw = tw;
@ -110,10 +128,10 @@ static void* ft2_MwFontLoad(unsigned char* data, unsigned int size) {
MwFLFont ttf = malloc(sizeof(*ttf));
ttf->data = malloc(size);
memcpy(ttf->data, data, size);
FT_Init_FreeType(&ttf->library);
FT_New_Memory_Face(ttf->library, ttf->data, size, 0, &ttf->face);
ft_table.FT_Init_FreeType(&ttf->library);
ft_table.FT_New_Memory_Face(ttf->library, ttf->data, size, 0, &ttf->face);
FT_Set_Pixel_Sizes(ttf->face, 0, 14);
ft_table.FT_Set_Pixel_Sizes(ttf->face, 0, 14);
return ttf;
}
@ -121,14 +139,27 @@ static void* ft2_MwFontLoad(unsigned char* data, unsigned int size) {
static void ft2_MwFontFree(void* handle) {
MwFLFont ttf = handle;
FT_Done_Face(ttf->face);
FT_Done_FreeType(ttf->library);
ft_table.FT_Done_Face(ttf->face);
ft_table.FT_Done_FreeType(ttf->library);
free(ttf->data);
free(ttf);
}
int MWFL_FT2Setup(void) {
/* Try and load FreeType2. If it fails, return 1, signifying we default to stbtt. */
void* ftlib;
if(!(ftlib = MwDynamicOpen("libfreetype.so"))) {
return 1;
}
ft_table.FT_Init_FreeType = MwDynamicSymbol(ftlib, "FT_Init_FreeType");
ft_table.FT_New_Memory_Face = MwDynamicSymbol(ftlib, "FT_New_Memory_Face");
ft_table.FT_Set_Pixel_Sizes = MwDynamicSymbol(ftlib, "FT_Set_Pixel_Sizes");
ft_table.FT_Load_Char = MwDynamicSymbol(ftlib, "FT_Load_Char");
ft_table.FT_Done_Face = MwDynamicSymbol(ftlib, "FT_Done_Face");
ft_table.FT_Done_FreeType = MwDynamicSymbol(ftlib, "FT_Done_FreeType");
MwFLDrawText = ft2_MwDrawText;
MwFLTextWidth = ft2_MwTextWidth;
MwFLTextHeight = ft2_MwTextHeight;