ffmpeg/FFmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-09-19 21:06:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

avutil/x86/pixelutils: Remove obsolete MMX(EXT) functions

Browse Source 
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). So given that the only systems which benefit
from the 8x8 MMX (overridden by MMXEXT) or the 16x16 MMXEXT
(overridden by SSE2) are truely ancient 32bit x86s they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-09 17:50:53 +02:00
parent 77b2a422a0
commit ea043cc53e
2 changed files with 0 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
libavutil/x86/pixelutils.asm
View File

@ -25,44 +25,6 @@
SECTION .text
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_MMX mmx
cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
pxor m7, m7
pxor m6, m6
%rep 4
mova m0, [src1q]
mova m2, [src1q + stride1q]
mova m1, [src2q]
mova m3, [src2q + stride2q]
psubusb m4, m0, m1
psubusb m5, m2, m3
psubusb m1, m0
psubusb m3, m2
por m1, m4
por m3, m5
punpcklbw m0, m1, m7
punpcklbw m2, m3, m7
punpckhbw m1, m7
punpckhbw m3, m7
paddw m0, m1
paddw m2, m3
paddw m0, m2
paddw m6, m0
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep
psrlq m0, m6, 32
paddw m6, m0
psrlq m0, m6, 16
paddw m6, m0
movd eax, m6
movzx eax, ax
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
@ -83,26 +45,6 @@ cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
movd eax, m2
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_MMX mmxext
cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2
pxor m2, m2
%rep 16
mova m0, [src1q]
mova m1, [src1q + 8]
psadbw m0, [src2q]
psadbw m1, [src2q + 8]
paddw m2, m0
paddw m2, m1
add src1q, stride1q
add src2q, stride2q
%endrep
movd eax, m2
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);

9
libavutil/x86/pixelutils_init.c
View File

@ -21,13 +21,9 @@
#include "pixelutils.h"
#include "cpu.h"
int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
const uint8_t *src2, ptrdiff_t stride2);
int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
const uint8_t *src2, ptrdiff_t stride2);
int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
const uint8_t *src2, ptrdiff_t stride2);
int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
const uint8_t *src2, ptrdiff_t stride2);
int ff_pixelutils_sad_a_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
@ -53,10 +49,6 @@ void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned)
{
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_MMX(cpu_flags)) {
sad[2] = ff_pixelutils_sad_8x8_mmx;
}
// The best way to use SSE2 would be to do 2 SADs in parallel,
// but we'd have to modify the pixelutils API to return SIMD functions.
@ -65,7 +57,6 @@ void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned)
// so just use the MMX 8x8 version even when SSE2 is available.
if (EXTERNAL_MMXEXT(cpu_flags)) {
sad[2] = ff_pixelutils_sad_8x8_mmxext;
sad[3] = ff_pixelutils_sad_16x16_mmxext;
}
if (EXTERNAL_SSE2(cpu_flags)) {