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swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm. 

Also implement SSE2/AVX variants.
tags/n0.10
Ronald S. Bultje 13 years ago
parent
599855748a
commit
2170a0e6ad
4 changed files with 327 additions and 164 deletions
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  1. +2
    -1
      libswscale/Makefile
  2. +242
    -0
      libswscale/x86/input.asm
  3. +83
    -0
      libswscale/x86/swscale_mmx.c
  4. +0
    -163
      libswscale/x86/swscale_template.c

+ 2
- 1
libswscale/Makefile View File

@@ -17,7 +17,8 @@ OBJS-$(HAVE_MMX) += x86/rgb2rgb.o \
x86/swscale_mmx.o \
x86/yuv2rgb_mmx.o
OBJS-$(HAVE_VIS) += sparc/yuv2rgb_vis.o
MMX-OBJS-$(HAVE_YASM) += x86/output.o \
MMX-OBJS-$(HAVE_YASM) += x86/input.o \
x86/output.o \
x86/scale.o

TESTPROGS = colorspace swscale


+ 242
- 0
libswscale/x86/input.asm View File

@@ -0,0 +1,242 @@
;******************************************************************************
;* x86-optimized input routines; does shuffling of packed
;* YUV formats into individual planes, and converts RGB
;* into YUV planes also.
;* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
;*
;* This file is part of Libav.
;*
;* Libav is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* Libav is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with Libav; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************

%include "x86inc.asm"
%include "x86util.asm"

SECTION_RODATA

SECTION .text

;-----------------------------------------------------------------------------
; YUYV/UYVY/NV12/NV21 packed pixel shuffling.
;
; void <fmt>ToY_<opt>(uint8_t *dst, const uint8_t *src, int w);
; and
; void <fmt>toUV_<opt>(uint8_t *dstU, uint8_t *dstV, const uint8_t *src,
; const uint8_t *unused, int w);
;-----------------------------------------------------------------------------

; %1 = a (aligned) or u (unaligned)
; %2 = yuyv or uyvy
%macro LOOP_YUYV_TO_Y 2
.loop_%1:
mov%1 m0, [srcq+wq*2] ; (byte) { Y0, U0, Y1, V0, ... }
mov%1 m1, [srcq+wq*2+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
%ifidn %2, yuyv
pand m0, m2 ; (word) { Y0, Y1, ..., Y7 }
pand m1, m2 ; (word) { Y8, Y9, ..., Y15 }
%else ; uyvy
psrlw m0, 8 ; (word) { Y0, Y1, ..., Y7 }
psrlw m1, 8 ; (word) { Y8, Y9, ..., Y15 }
%endif ; yuyv/uyvy
packuswb m0, m1 ; (byte) { Y0, ..., Y15 }
mova [dstq+wq], m0
add wq, mmsize
jl .loop_%1
REP_RET
%endmacro

; %1 = nr. of XMM registers
; %2 = yuyv or uyvy
; %3 = if specified, it means that unaligned and aligned code in loop
; will be the same (i.e. YUYV+AVX), and thus we don't need to
; split the loop in an aligned and unaligned case
%macro YUYV_TO_Y_FN 2-3
cglobal %2ToY, 3, 3, %1, dst, src, w
%ifdef ARCH_X86_64
movsxd wq, wd
%endif
add dstq, wq
%if mmsize == 16
test srcq, 15
%endif
lea srcq, [srcq+wq*2]
%ifidn %2, yuyv
pcmpeqb m2, m2 ; (byte) { 0xff } x 16
psrlw m2, 8 ; (word) { 0x00ff } x 8
%endif ; yuyv
%if mmsize == 16
jnz .loop_u_start
neg wq
LOOP_YUYV_TO_Y a, %2
.loop_u_start:
neg wq
LOOP_YUYV_TO_Y u, %2
%else ; mmsize == 8
neg wq
LOOP_YUYV_TO_Y a, %2
%endif ; mmsize == 8/16
%endmacro

; %1 = a (aligned) or u (unaligned)
; %2 = yuyv or uyvy
%macro LOOP_YUYV_TO_UV 2
.loop_%1:
%ifidn %2, yuyv
mov%1 m0, [srcq+wq*4] ; (byte) { Y0, U0, Y1, V0, ... }
mov%1 m1, [srcq+wq*4+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
psrlw m0, 8 ; (word) { U0, V0, ..., U3, V3 }
psrlw m1, 8 ; (word) { U4, V4, ..., U7, V7 }
%else ; uyvy
%if cpuflag(avx)
vpand m0, m2, [srcq+wq*4] ; (word) { U0, V0, ..., U3, V3 }
vpand m1, m2, [srcq+wq*4+mmsize] ; (word) { U4, V4, ..., U7, V7 }
%else
mov%1 m0, [srcq+wq*4] ; (byte) { Y0, U0, Y1, V0, ... }
mov%1 m1, [srcq+wq*4+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
pand m0, m2 ; (word) { U0, V0, ..., U3, V3 }
pand m1, m2 ; (word) { U4, V4, ..., U7, V7 }
%endif
%endif ; yuyv/uyvy
packuswb m0, m1 ; (byte) { U0, V0, ..., U7, V7 }
pand m1, m0, m2 ; (word) { U0, U1, ..., U7 }
psrlw m0, 8 ; (word) { V0, V1, ..., V7 }
%if mmsize == 16
packuswb m1, m0 ; (byte) { U0, ... U7, V1, ... V7 }
movh [dstUq+wq], m1
movhps [dstVq+wq], m1
%else ; mmsize == 8
packuswb m1, m1 ; (byte) { U0, ... U3 }
packuswb m0, m0 ; (byte) { V0, ... V3 }
movh [dstUq+wq], m1
movh [dstVq+wq], m0
%endif ; mmsize == 8/16
add wq, mmsize / 2
jl .loop_%1
REP_RET
%endmacro

; %1 = nr. of XMM registers
; %2 = yuyv or uyvy
; %3 = if specified, it means that unaligned and aligned code in loop
; will be the same (i.e. UYVY+AVX), and thus we don't need to
; split the loop in an aligned and unaligned case
%macro YUYV_TO_UV_FN 2-3
cglobal %2ToUV, 3, 4, %1, dstU, dstV, src, w
%ifdef ARCH_X86_64
movsxd wq, r4m
%else ; x86-32
mov wq, r4m
%endif
add dstUq, wq
add dstVq, wq
%if mmsize == 16 && %0 == 2
test srcq, 15
%endif
lea srcq, [srcq+wq*4]
pcmpeqb m2, m2 ; (byte) { 0xff } x 16
psrlw m2, 8 ; (word) { 0x00ff } x 8
; NOTE: if uyvy+avx, u/a are identical
%if mmsize == 16 && %0 == 2
jnz .loop_u_start
neg wq
LOOP_YUYV_TO_UV a, %2
.loop_u_start:
neg wq
LOOP_YUYV_TO_UV u, %2
%else ; mmsize == 8
neg wq
LOOP_YUYV_TO_UV a, %2
%endif ; mmsize == 8/16
%endmacro

; %1 = a (aligned) or u (unaligned)
; %2 = nv12 or nv21
%macro LOOP_NVXX_TO_UV 2
.loop_%1:
mov%1 m0, [srcq+wq*2] ; (byte) { U0, V0, U1, V1, ... }
mov%1 m1, [srcq+wq*2+mmsize] ; (byte) { U8, V8, U9, V9, ... }
pand m2, m0, m4 ; (word) { U0, U1, ..., U7 }
pand m3, m1, m4 ; (word) { U8, U9, ..., U15 }
psrlw m0, 8 ; (word) { V0, V1, ..., V7 }
psrlw m1, 8 ; (word) { V8, V9, ..., V15 }
packuswb m2, m3 ; (byte) { U0, ..., U15 }
packuswb m0, m1 ; (byte) { V0, ..., V15 }
%ifidn %2, nv12
mova [dstUq+wq], m2
mova [dstVq+wq], m0
%else ; nv21
mova [dstVq+wq], m2
mova [dstUq+wq], m0
%endif ; nv12/21
add wq, mmsize
jl .loop_%1
REP_RET
%endmacro

; %1 = nr. of XMM registers
; %2 = nv12 or nv21
%macro NVXX_TO_UV_FN 2
cglobal %2ToUV, 3, 4, %1, dstU, dstV, src, w
%ifdef ARCH_X86_64
movsxd wq, r4m
%else ; x86-32
mov wq, r4m
%endif
add dstUq, wq
add dstVq, wq
%if mmsize == 16
test srcq, 15
%endif
lea srcq, [srcq+wq*2]
pcmpeqb m4, m4 ; (byte) { 0xff } x 16
psrlw m4, 8 ; (word) { 0x00ff } x 8
%if mmsize == 16
jnz .loop_u_start
neg wq
LOOP_NVXX_TO_UV a, %2
.loop_u_start:
neg wq
LOOP_NVXX_TO_UV u, %2
%else ; mmsize == 8
neg wq
LOOP_NVXX_TO_UV a, %2
%endif ; mmsize == 8/16
%endmacro

%ifdef ARCH_X86_32
INIT_MMX mmx
YUYV_TO_Y_FN 0, yuyv
YUYV_TO_Y_FN 0, uyvy
YUYV_TO_UV_FN 0, yuyv
YUYV_TO_UV_FN 0, uyvy
NVXX_TO_UV_FN 0, nv12
NVXX_TO_UV_FN 0, nv21
%endif

INIT_XMM sse2
YUYV_TO_Y_FN 3, yuyv
YUYV_TO_Y_FN 2, uyvy
YUYV_TO_UV_FN 3, yuyv
YUYV_TO_UV_FN 3, uyvy
NVXX_TO_UV_FN 5, nv12
NVXX_TO_UV_FN 5, nv21

INIT_XMM avx
; in theory, we could write a yuy2-to-y using vpand (i.e. AVX), but
; that's not faster in practice
YUYV_TO_UV_FN 3, yuyv
YUYV_TO_UV_FN 3, uyvy, 1
NVXX_TO_UV_FN 5, nv12
NVXX_TO_UV_FN 5, nv21

+ 83
- 0
libswscale/x86/swscale_mmx.c View File

@@ -244,6 +244,26 @@ VSCALE_FUNCS(sse2, sse2);
VSCALE_FUNC(16, sse4);
VSCALE_FUNCS(avx, avx);

#define INPUT_UV_FUNC(fmt, opt) \
extern void ff_ ## fmt ## ToUV_ ## opt(uint8_t *dstU, uint8_t *dstV, \
const uint8_t *src, const uint8_t *unused1, \
int w, uint32_t *unused2)
#define INPUT_FUNC(fmt, opt) \
extern void ff_ ## fmt ## ToY_ ## opt(uint8_t *dst, const uint8_t *src, \
int w, uint32_t *unused); \
INPUT_UV_FUNC(fmt, opt)
#define INPUT_FUNCS(opt) \
INPUT_FUNC(uyvy, opt); \
INPUT_FUNC(yuyv, opt); \
INPUT_UV_FUNC(nv12, opt); \
INPUT_UV_FUNC(nv21, opt)

#if ARCH_X86_32
INPUT_FUNCS(mmx);
#endif
INPUT_FUNCS(sse2);
INPUT_FUNCS(avx);

void ff_sws_init_swScale_mmx(SwsContext *c)
{
int cpu_flags = av_get_cpu_flags();
@@ -296,6 +316,30 @@ switch(c->dstBpc){ \
ASSIGN_MMX_SCALE_FUNC(c->hyScale, c->hLumFilterSize, mmx, mmx);
ASSIGN_MMX_SCALE_FUNC(c->hcScale, c->hChrFilterSize, mmx, mmx);
ASSIGN_VSCALE_FUNC(c->yuv2plane1, mmx, mmx2, cpu_flags & AV_CPU_FLAG_MMX2);

switch (c->srcFormat) {
case PIX_FMT_Y400A:
c->lumToYV12 = ff_yuyvToY_mmx;
if (c->alpPixBuf)
c->alpToYV12 = ff_uyvyToY_mmx;
break;
case PIX_FMT_YUYV422:
c->lumToYV12 = ff_yuyvToY_mmx;
c->chrToYV12 = ff_yuyvToUV_mmx;
break;
case PIX_FMT_UYVY422:
c->lumToYV12 = ff_uyvyToY_mmx;
c->chrToYV12 = ff_uyvyToUV_mmx;
break;
case PIX_FMT_NV12:
c->chrToYV12 = ff_nv12ToUV_mmx;
break;
case PIX_FMT_NV21:
c->chrToYV12 = ff_nv21ToUV_mmx;
break;
default:
break;
}
}
if (cpu_flags & AV_CPU_FLAG_MMX2) {
ASSIGN_VSCALEX_FUNC(c->yuv2planeX, mmx2,);
@@ -314,6 +358,28 @@ switch(c->dstBpc){ \
ASSIGN_SSE_SCALE_FUNC(c->hcScale, c->hChrFilterSize, sse2, sse2);
ASSIGN_VSCALEX_FUNC(c->yuv2planeX, sse2,);
ASSIGN_VSCALE_FUNC(c->yuv2plane1, sse2, sse2, 1);

switch (c->srcFormat) {
case PIX_FMT_Y400A:
c->lumToYV12 = ff_yuyvToY_sse2;
if (c->alpPixBuf)
c->alpToYV12 = ff_uyvyToY_sse2;
break;
case PIX_FMT_YUYV422:
c->lumToYV12 = ff_yuyvToY_sse2;
c->chrToYV12 = ff_yuyvToUV_sse2;
break;
case PIX_FMT_UYVY422:
c->lumToYV12 = ff_uyvyToY_sse2;
c->chrToYV12 = ff_uyvyToUV_sse2;
break;
case PIX_FMT_NV12:
c->chrToYV12 = ff_nv12ToUV_sse2;
break;
case PIX_FMT_NV21:
c->chrToYV12 = ff_nv21ToUV_sse2;
break;
}
}
if (cpu_flags & AV_CPU_FLAG_SSSE3) {
ASSIGN_SSE_SCALE_FUNC(c->hyScale, c->hLumFilterSize, ssse3, ssse3);
@@ -332,6 +398,23 @@ switch(c->dstBpc){ \
if (cpu_flags & AV_CPU_FLAG_AVX) {
ASSIGN_VSCALEX_FUNC(c->yuv2planeX, avx,);
ASSIGN_VSCALE_FUNC(c->yuv2plane1, avx, avx, 1);

switch (c->srcFormat) {
case PIX_FMT_YUYV422:
c->chrToYV12 = ff_yuyvToUV_avx;
break;
case PIX_FMT_UYVY422:
c->chrToYV12 = ff_uyvyToUV_avx;
break;
case PIX_FMT_NV12:
c->chrToYV12 = ff_nv12ToUV_avx;
break;
case PIX_FMT_NV21:
c->chrToYV12 = ff_nv21ToUV_avx;
break;
default:
break;
}
}
#endif
}

+ 0
- 163
libswscale/x86/swscale_template.c View File

@@ -1361,147 +1361,6 @@ static void RENAME(yuv2yuyv422_1)(SwsContext *c, const int16_t *buf0,
}
}

#if !COMPILE_TEMPLATE_MMX2
//FIXME yuy2* can read up to 7 samples too much

static void RENAME(yuy2ToY)(uint8_t *dst, const uint8_t *src,
int width, uint32_t *unused)
{
__asm__ volatile(
"movq "MANGLE(bm01010101)", %%mm2 \n\t"
"mov %0, %%"REG_a" \n\t"
"1: \n\t"
"movq (%1, %%"REG_a",2), %%mm0 \n\t"
"movq 8(%1, %%"REG_a",2), %%mm1 \n\t"
"pand %%mm2, %%mm0 \n\t"
"pand %%mm2, %%mm1 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"movq %%mm0, (%2, %%"REG_a") \n\t"
"add $8, %%"REG_a" \n\t"
" js 1b \n\t"
: : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
: "%"REG_a
);
}

static void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
__asm__ volatile(
"movq "MANGLE(bm01010101)", %%mm4 \n\t"
"mov %0, %%"REG_a" \n\t"
"1: \n\t"
"movq (%1, %%"REG_a",4), %%mm0 \n\t"
"movq 8(%1, %%"REG_a",4), %%mm1 \n\t"
"psrlw $8, %%mm0 \n\t"
"psrlw $8, %%mm1 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"movq %%mm0, %%mm1 \n\t"
"psrlw $8, %%mm0 \n\t"
"pand %%mm4, %%mm1 \n\t"
"packuswb %%mm0, %%mm0 \n\t"
"packuswb %%mm1, %%mm1 \n\t"
"movd %%mm0, (%3, %%"REG_a") \n\t"
"movd %%mm1, (%2, %%"REG_a") \n\t"
"add $4, %%"REG_a" \n\t"
" js 1b \n\t"
: : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
: "%"REG_a
);
assert(src1 == src2);
}

/* This is almost identical to the previous, end exists only because
* yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
static void RENAME(uyvyToY)(uint8_t *dst, const uint8_t *src,
int width, uint32_t *unused)
{
__asm__ volatile(
"mov %0, %%"REG_a" \n\t"
"1: \n\t"
"movq (%1, %%"REG_a",2), %%mm0 \n\t"
"movq 8(%1, %%"REG_a",2), %%mm1 \n\t"
"psrlw $8, %%mm0 \n\t"
"psrlw $8, %%mm1 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"movq %%mm0, (%2, %%"REG_a") \n\t"
"add $8, %%"REG_a" \n\t"
" js 1b \n\t"
: : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
: "%"REG_a
);
}

static void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
__asm__ volatile(
"movq "MANGLE(bm01010101)", %%mm4 \n\t"
"mov %0, %%"REG_a" \n\t"
"1: \n\t"
"movq (%1, %%"REG_a",4), %%mm0 \n\t"
"movq 8(%1, %%"REG_a",4), %%mm1 \n\t"
"pand %%mm4, %%mm0 \n\t"
"pand %%mm4, %%mm1 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"movq %%mm0, %%mm1 \n\t"
"psrlw $8, %%mm0 \n\t"
"pand %%mm4, %%mm1 \n\t"
"packuswb %%mm0, %%mm0 \n\t"
"packuswb %%mm1, %%mm1 \n\t"
"movd %%mm0, (%3, %%"REG_a") \n\t"
"movd %%mm1, (%2, %%"REG_a") \n\t"
"add $4, %%"REG_a" \n\t"
" js 1b \n\t"
: : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
: "%"REG_a
);
assert(src1 == src2);
}

static av_always_inline void RENAME(nvXXtoUV)(uint8_t *dst1, uint8_t *dst2,
const uint8_t *src, int width)
{
__asm__ volatile(
"movq "MANGLE(bm01010101)", %%mm4 \n\t"
"mov %0, %%"REG_a" \n\t"
"1: \n\t"
"movq (%1, %%"REG_a",2), %%mm0 \n\t"
"movq 8(%1, %%"REG_a",2), %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm1, %%mm3 \n\t"
"pand %%mm4, %%mm0 \n\t"
"pand %%mm4, %%mm1 \n\t"
"psrlw $8, %%mm2 \n\t"
"psrlw $8, %%mm3 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"movq %%mm0, (%2, %%"REG_a") \n\t"
"movq %%mm2, (%3, %%"REG_a") \n\t"
"add $8, %%"REG_a" \n\t"
" js 1b \n\t"
: : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst1+width), "r" (dst2+width)
: "%"REG_a
);
}

static void RENAME(nv12ToUV)(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
RENAME(nvXXtoUV)(dstU, dstV, src1, width);
}

static void RENAME(nv21ToUV)(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
RENAME(nvXXtoUV)(dstV, dstU, src1, width);
}
#endif /* !COMPILE_TEMPLATE_MMX2 */

static av_always_inline void RENAME(bgr24ToY_mmx)(uint8_t *dst, const uint8_t *src,
int width, enum PixelFormat srcFormat)
{
@@ -1856,15 +1715,6 @@ static av_cold void RENAME(sws_init_swScale)(SwsContext *c)
#endif /* COMPILE_TEMPLATE_MMX2 */
}

#if !COMPILE_TEMPLATE_MMX2
switch(srcFormat) {
case PIX_FMT_YUYV422 : c->chrToYV12 = RENAME(yuy2ToUV); break;
case PIX_FMT_UYVY422 : c->chrToYV12 = RENAME(uyvyToUV); break;
case PIX_FMT_NV12 : c->chrToYV12 = RENAME(nv12ToUV); break;
case PIX_FMT_NV21 : c->chrToYV12 = RENAME(nv21ToUV); break;
default: break;
}
#endif /* !COMPILE_TEMPLATE_MMX2 */
if (!c->chrSrcHSubSample) {
switch(srcFormat) {
case PIX_FMT_BGR24 : c->chrToYV12 = RENAME(bgr24ToUV); break;
@@ -1874,21 +1724,8 @@ static av_cold void RENAME(sws_init_swScale)(SwsContext *c)
}

switch (srcFormat) {
#if !COMPILE_TEMPLATE_MMX2
case PIX_FMT_YUYV422 :
case PIX_FMT_Y400A : c->lumToYV12 = RENAME(yuy2ToY); break;
case PIX_FMT_UYVY422 : c->lumToYV12 = RENAME(uyvyToY); break;
#endif /* !COMPILE_TEMPLATE_MMX2 */
case PIX_FMT_BGR24 : c->lumToYV12 = RENAME(bgr24ToY); break;
case PIX_FMT_RGB24 : c->lumToYV12 = RENAME(rgb24ToY); break;
default: break;
}
#if !COMPILE_TEMPLATE_MMX2
if (c->alpPixBuf) {
switch (srcFormat) {
case PIX_FMT_Y400A : c->alpToYV12 = RENAME(yuy2ToY); break;
default: break;
}
}
#endif /* !COMPILE_TEMPLATE_MMX2 */
}

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