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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-06-20 07:20:40 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-06-22 13:40:49 +0200
commit230ea38de143368729ee1cce47b3a87fbafad8e4 (patch)
tree60d661edbb7f107150e92dd0f6e13bc073d2eb5d /libavcodec
parent839fbe0e98881f020e41dc7151d08f2ccb314398 (diff)
avcodec/x86/lossless_videoencdsp: Remove obsolete MMX function
The only systems which benefit from ff_diff_bytes_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>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/x86/lossless_videoencdsp.asm9
-rw-r--r--libavcodec/x86/lossless_videoencdsp_init.c6
2 files changed, 0 insertions, 15 deletions
diff --git a/libavcodec/x86/lossless_videoencdsp.asm b/libavcodec/x86/lossless_videoencdsp.asm
index fb1204f0f1..2e1d01bc2c 100644
--- a/libavcodec/x86/lossless_videoencdsp.asm
+++ b/libavcodec/x86/lossless_videoencdsp.asm
@@ -113,15 +113,6 @@ cglobal diff_bytes, 4,5,2, dst, src1, src2, w
REP_RET
%endmacro
-%if ARCH_X86_32
-INIT_MMX mmx
-DIFF_BYTES_PROLOGUE
- %define regsize mmsize
- DIFF_BYTES_LOOP_PREP .skip_main_aa, .end_aa
- DIFF_BYTES_BODY a, a
-%undef i
-%endif
-
INIT_XMM sse2
DIFF_BYTES_PROLOGUE
%define regsize mmsize
diff --git a/libavcodec/x86/lossless_videoencdsp_init.c b/libavcodec/x86/lossless_videoencdsp_init.c
index 40407add52..b3efcfdcd7 100644
--- a/libavcodec/x86/lossless_videoencdsp_init.c
+++ b/libavcodec/x86/lossless_videoencdsp_init.c
@@ -29,8 +29,6 @@
#include "libavcodec/lossless_videoencdsp.h"
#include "libavcodec/mathops.h"
-void ff_diff_bytes_mmx(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
- intptr_t w);
void ff_diff_bytes_sse2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
intptr_t w);
void ff_diff_bytes_avx2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
@@ -87,10 +85,6 @@ av_cold void ff_llvidencdsp_init_x86(LLVidEncDSPContext *c)
{
av_unused int cpu_flags = av_get_cpu_flags();
- if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
- c->diff_bytes = ff_diff_bytes_mmx;
- }
-
#if HAVE_INLINE_ASM
if (INLINE_MMXEXT(cpu_flags)) {
c->sub_median_pred = sub_median_pred_mmxext;