RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

avcodec/x86/lossless_audiodsp: Remove obsolete MMXEXT function 

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 ff_scalarproduct_and_madd_int16_mmxext are truely
ancient 32bit x86s it is removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-10 20:54:45 +02:00
parent 92b5800277
commit 6feea076e9
2 changed files with 1 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libavcodec/x86/lossless_audiodsp.asm
View File

@ -22,18 +22,14 @@
SECTION .text
%macro SCALARPRODUCT 0
; int ff_scalarproduct_and_madd_int16(int16_t *v1, int16_t *v2, int16_t *v3,
; int order, int mul)
INIT_XMM sse2
cglobal scalarproduct_and_madd_int16, 4,4,8, v1, v2, v3, order, mul
shl orderq, 1
movd m7, mulm
%if mmsize == 16
pshuflw m7, m7, 0
punpcklqdq m7, m7
%else
pshufw m7, m7, 0
%endif
pxor m6, m6
add v1q, orderq
add v2q, orderq
@ -61,12 +57,6 @@ cglobal scalarproduct_and_madd_int16, 4,4,8, v1, v2, v3, order, mul
HADDD m6, m0
movd eax, m6
RET
%endmacro
INIT_MMX mmxext
SCALARPRODUCT
INIT_XMM sse2
SCALARPRODUCT
INIT_XMM sse4
; int ff_scalarproduct_and_madd_int32(int16_t *v1, int32_t *v2, int16_t *v3,

6
libavcodec/x86/lossless_audiodsp_init.c
View File

@ -21,9 +21,6 @@
#include "libavutil/x86/cpu.h"
#include "libavcodec/lossless_audiodsp.h"
int32_t ff_scalarproduct_and_madd_int16_mmxext(int16_t *v1, const int16_t *v2,
const int16_t *v3,
int order, int mul);
int32_t ff_scalarproduct_and_madd_int16_sse2(int16_t *v1, const int16_t *v2,
const int16_t *v3,
int order, int mul);
@ -40,9 +37,6 @@ av_cold void ff_llauddsp_init_x86(LLAudDSPContext *c)
#if HAVE_X86ASM
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_MMXEXT(cpu_flags))
c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_mmxext;
if (EXTERNAL_SSE2(cpu_flags))
c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_sse2;