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avcodec/x86/huffyuvencdsp: Remove obsolete MMX function 

The only systems which benefit from ff_diff_int16_mmx are truely
ancient 32bit x86s as all other systems use at least the SSE2 versions
(this includes all x64 cpus (which is why this code is restricted
to x86-32)).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-20 07:14:47 +02:00
parent 5e332fe35c
commit 839fbe0e98
2 changed files with 0 additions and 15 deletions
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9
libavcodec/x86/huffyuvencdsp.asm
View File

@ -36,26 +36,17 @@ SECTION .text
%macro DIFF_INT16 0
cglobal diff_int16, 5,5,5, dst, src1, src2, mask, w, tmp
%if mmsize > 8
test src1q, mmsize-1
jnz .unaligned
test src2q, mmsize-1
jnz .unaligned
test dstq, mmsize-1
jnz .unaligned
%endif
INT16_LOOP a, sub
%if mmsize > 8
.unaligned:
INT16_LOOP u, sub
%endif
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
DIFF_INT16
%endif
INIT_XMM sse2
DIFF_INT16

6
libavcodec/x86/huffyuvencdsp_init.c
View File

@ -28,8 +28,6 @@
#include "libavutil/x86/cpu.h"
#include "libavcodec/huffyuvencdsp.h"
void ff_diff_int16_mmx (uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
unsigned mask, int w);
void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
unsigned mask, int w);
void ff_diff_int16_avx2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
@ -42,10 +40,6 @@ av_cold void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c, AVCodecContext *
av_unused int cpu_flags = av_get_cpu_flags();
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
c->diff_int16 = ff_diff_int16_mmx;
}
if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
}