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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-06-10 20:49:50 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-06-22 13:33:41 +0200
commitee551a21ddcbf81afe183d9489c534ee80f263a0 (patch)
treea63ef4b23e5e92e88b4cd5506b714a46dca70c9a
parentbfb28b5ce89f3e950214b67ea95b45e3355c2caf (diff)
avcodec/x86/blockdsp: Remove obsolete MMX functions
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2) for x64. So given that the only systems that benefit from these functions are truely ancient 32bit x86s they are removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
-rw-r--r--libavcodec/x86/blockdsp.asm6
-rw-r--r--libavcodec/x86/blockdsp_init.c7
2 files changed, 0 insertions, 13 deletions
diff --git a/libavcodec/x86/blockdsp.asm b/libavcodec/x86/blockdsp.asm
index 9d203df8f5..e380308d4a 100644
--- a/libavcodec/x86/blockdsp.asm
+++ b/libavcodec/x86/blockdsp.asm
@@ -46,9 +46,6 @@ cglobal clear_block, 1, 1, %1, blocks
RET
%endmacro
-INIT_MMX mmx
-%define ZERO pxor
-CLEAR_BLOCK 0, 4
INIT_XMM sse
%define ZERO xorps
CLEAR_BLOCK 1, 2
@@ -78,9 +75,6 @@ cglobal clear_blocks, 1, 2, %1, blocks, len
RET
%endmacro
-INIT_MMX mmx
-%define ZERO pxor
-CLEAR_BLOCKS 0
INIT_XMM sse
%define ZERO xorps
CLEAR_BLOCKS 1
diff --git a/libavcodec/x86/blockdsp_init.c b/libavcodec/x86/blockdsp_init.c
index d7f8a8e508..b0ff9376d9 100644
--- a/libavcodec/x86/blockdsp_init.c
+++ b/libavcodec/x86/blockdsp_init.c
@@ -24,10 +24,8 @@
#include "libavutil/x86/cpu.h"
#include "libavcodec/blockdsp.h"
-void ff_clear_block_mmx(int16_t *block);
void ff_clear_block_sse(int16_t *block);
void ff_clear_block_avx(int16_t *block);
-void ff_clear_blocks_mmx(int16_t *blocks);
void ff_clear_blocks_sse(int16_t *blocks);
void ff_clear_blocks_avx(int16_t *blocks);
@@ -37,11 +35,6 @@ av_cold void ff_blockdsp_init_x86(BlockDSPContext *c,
#if HAVE_X86ASM
int cpu_flags = av_get_cpu_flags();
- if (EXTERNAL_MMX(cpu_flags)) {
- c->clear_block = ff_clear_block_mmx;
- c->clear_blocks = ff_clear_blocks_mmx;
- }
-
if (EXTERNAL_SSE(cpu_flags)) {
c->clear_block = ff_clear_block_sse;
c->clear_blocks = ff_clear_blocks_sse;