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vp3: don't compile mmx IDCT functions on x86-64. 

64-bit CPUs always have SSE2, and a SSE2 version exists, thus the MMX
version will never be used.
This commit is contained in:
Ronald S. Bultje 2012-07-26 22:16:37 -07:00
parent a5bbb1242c
commit 4d777eedfd
2 changed files with 5 additions and 0 deletions
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3
libavcodec/x86/vp3dsp.asm
View File

@ -607,8 +607,11 @@ cglobal vp3_idct_add, 3, 4, 9
RET
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
vp3_idct_funcs
%endif
INIT_XMM sse2
vp3_idct_funcs

2
libavcodec/x86/vp3dsp_init.c
View File

@ -41,11 +41,13 @@ av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
#if HAVE_YASM
int cpuflags = av_get_cpu_flags();
#if ARCH_X86_32
if (HAVE_MMX && cpuflags & AV_CPU_FLAG_MMX) {
c->idct_put = ff_vp3_idct_put_mmx;
c->idct_add = ff_vp3_idct_add_mmx;
c->idct_perm = FF_PARTTRANS_IDCT_PERM;
}
#endif
if (HAVE_MMX2 && cpuflags & AV_CPU_FLAG_MMX2) {
c->idct_dc_add = ff_vp3_idct_dc_add_mmx2;