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[FFmpeg-devel,34/41] avcodec/x86/h264chroma_init: Disable overridden functions on x64

Message ID DB6PR0101MB2214CE0D604D3A31E14446358FA79@DB6PR0101MB2214.eurprd01.prod.exchangelabs.com
State Superseded
Headers show
Series Stop including superseded functions for x64 | expand


Context Check Description
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Andreas Rheinhardt June 9, 2022, 11:55 p.m. UTC
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). This commit therefore disables
the 3dnow implementation (which is overridden by the MMXEXT
specific implementation) at compile-time for x64.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 libavcodec/x86/h264_chromamc.asm | 4 ++--
 libavcodec/x86/h264chroma_init.c | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)
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diff --git a/libavcodec/x86/h264_chromamc.asm b/libavcodec/x86/h264_chromamc.asm
index d59c183371..5704deed1c 100644
--- a/libavcodec/x86/h264_chromamc.asm
+++ b/libavcodec/x86/h264_chromamc.asm
@@ -446,14 +446,14 @@  chroma_mc4_mmx_func avg, h264
 chroma_mc4_mmx_func avg, rv40
 chroma_mc2_mmx_func avg, h264
+%if ARCH_X86_32
 INIT_MMX 3dnow
 chroma_mc8_mmx_func avg, h264, _rnd
-%if ARCH_X86_32
 chroma_mc8_mmx_func avg, vc1,  _nornd
 chroma_mc8_mmx_func avg, rv40
 chroma_mc4_mmx_func avg, rv40
 chroma_mc4_mmx_func avg, h264
 %macro chroma_mc8_ssse3_func 2-3
 cglobal %1_%2_chroma_mc8%3, 6, 7, 8
diff --git a/libavcodec/x86/h264chroma_init.c b/libavcodec/x86/h264chroma_init.c
index 36bf29df02..26883d57e9 100644
--- a/libavcodec/x86/h264chroma_init.c
+++ b/libavcodec/x86/h264chroma_init.c
@@ -77,10 +77,12 @@  av_cold void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth)
         c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmx;
+#if ARCH_X86_32
     if (EXTERNAL_AMD3DNOW(cpu_flags) && !high_bit_depth) {
         c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_3dnow;
         c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_3dnow;
     if (EXTERNAL_MMXEXT(cpu_flags) && !high_bit_depth) {
         c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_mmxext;