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swresample/x86/resample: Remove obsolete MMXEXT functions 

x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT, SSE and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2). So given that the only systems which benefit
from the MMXEXT resamplers (which are overridden by SSE2)
are truely ancient 32bit x86s they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-12 00:11:35 +02:00
parent 4e51e48ebd
commit dd61d6489b
2 changed files with 0 additions and 10 deletions
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5
libswresample/x86/resample.asm
View File

@ -594,11 +594,6 @@ INIT_XMM fma4
RESAMPLE_FNS float, 4, 2, s, pf_1
%endif
%if ARCH_X86_32
INIT_MMX mmxext
RESAMPLE_FNS int16, 2, 1
%endif
INIT_XMM sse2
RESAMPLE_FNS int16, 2, 1
%if HAVE_XOP_EXTERNAL

5
libswresample/x86/resample_init.c
View File

@ -35,7 +35,6 @@ int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \
int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \
const void *src, int sz, int upd)
RESAMPLE_FUNCS(int16, mmxext);
RESAMPLE_FUNCS(int16, sse2);
RESAMPLE_FUNCS(int16, xop);
RESAMPLE_FUNCS(float, sse);
@ -52,10 +51,6 @@ av_cold void swri_resample_dsp_x86_init(ResampleContext *c)
switch(c->format){
case AV_SAMPLE_FMT_S16P:
if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) {
c->dsp.resample_linear = ff_resample_linear_int16_mmxext;
c->dsp.resample_common = ff_resample_common_int16_mmxext;
}
if (EXTERNAL_SSE2(mm_flags)) {
c->dsp.resample_linear = ff_resample_linear_int16_sse2;
c->dsp.resample_common = ff_resample_common_int16_sse2;