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Issue #1962 - Update libtheora.

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Removed some obsolete patches that were either backports from newer
 svn revisions, or a fix for older, non-applicable assemblers.
Update our own README to account for upstream's migration to git.
I didn't remove the bug 703135 patch as it's for MSVC it seems, and
 we still use MSVC for Windows.
Also deleted some unneeded upstream code deleted by Mozilla as well.
This commit is contained in:
Job Bautista 2022-07-19 17:26:42 +08:00 • committed by roytam1
commit be2516a091
61 changed files with 1212 additions and 2349 deletions
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44
media/libtheora/lib/x86/sse2idct.c
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@ -208,6 +208,7 @@ const unsigned short __attribute__((aligned(16),used)) OC_IDCT_CONSTS[64]={
static void oc_idct8x8_slow_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){
OC_ALIGN16(ogg_int16_t buf[16]);
int i;
/*This routine accepts an 8x8 matrix pre-transposed.*/
__asm__ __volatile__(
/*Load rows 2, 3, 5, and 6 for the first stage of the iDCT.*/
@ -230,19 +231,16 @@ static void oc_idct8x8_slow_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){
:[x]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,_x,64)),
[c]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,OC_IDCT_CONSTS,128))
);
if(_x!=_y){
int i;
__asm__ __volatile__("pxor %%xmm0,%%xmm0\n\t"::);
/*Clear input data for next block (decoder only).*/
for(i=0;i<2;i++){
__asm__ __volatile__(
"movdqa %%xmm0,"OC_MEM_OFFS(0x00,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x10,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x20,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x30,x)"\n\t"
:[x]"=m"(OC_ARRAY_OPERAND(ogg_int16_t,_x+i*32,32))
);
}
__asm__ __volatile__("pxor %%xmm0,%%xmm0\n\t"::);
/*Clear input data for next block (decoder only).*/
for(i=0;i<2;i++){
__asm__ __volatile__(
"movdqa %%xmm0,"OC_MEM_OFFS(0x00,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x10,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x20,x)"\n\t"
"movdqa %%xmm0,"OC_MEM_OFFS(0x30,x)"\n\t"
:[x]"=m"(OC_ARRAY_OPERAND(ogg_int16_t,_x+i*32,32))
);
}
}
@ -411,17 +409,15 @@ static void oc_idct8x8_10_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){
:[x]"m"OC_CONST_ARRAY_OPERAND(ogg_int16_t,_x,64),
[c]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,OC_IDCT_CONSTS,128))
);
if(_x!=_y){
/*Clear input data for next block (decoder only).*/
__asm__ __volatile__(
"pxor %%mm0,%%mm0\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x00,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x10,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x20,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x30,x)"\n\t"
:[x]"+m"(OC_ARRAY_OPERAND(ogg_int16_t,_x,28))
);
}
/*Clear input data for next block (decoder only).*/
__asm__ __volatile__(
"pxor %%mm0,%%mm0\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x00,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x10,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x20,x)"\n\t"
"movq %%mm0,"OC_MEM_OFFS(0x30,x)"\n\t"
:[x]"+m"(OC_ARRAY_OPERAND(ogg_int16_t,_x,28))
);
}
/*Performs an inverse 8x8 Type-II DCT transform.