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x86/idctdsp: port {put,add}_pixels_clamped to yasm 

Also add sse2 versions for both.
put_pixels_clamped port and sse2 version originally written by Timothy Gu.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
tags/n2.5
James Almer 11 years ago
parent
c99a882814
commit
4f4f08e6f0
5 changed files with 112 additions and 139 deletions
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  1. +1
    -2
      libavcodec/x86/Makefile
  2. +103
    -0
      libavcodec/x86/idctdsp.asm
  3. +4
    -0
      libavcodec/x86/idctdsp.h
  4. +4
    -3
      libavcodec/x86/idctdsp_init.c
  5. +0
    -134
      libavcodec/x86/idctdsp_mmx.c

+ 1
- 2
libavcodec/x86/Makefile View File

@@ -66,8 +66,7 @@ OBJS-$(CONFIG_WEBP_DECODER) += x86/vp8dsp_init.o
# subsystems
MMX-OBJS-$(CONFIG_DIRAC_DECODER) += x86/dirac_dwt.o
MMX-OBJS-$(CONFIG_FDCTDSP) += x86/fdct.o
MMX-OBJS-$(CONFIG_IDCTDSP) += x86/idctdsp_mmx.o \
x86/simple_idct.o
MMX-OBJS-$(CONFIG_IDCTDSP) += x86/simple_idct.o

# decoders/encoders
MMX-OBJS-$(CONFIG_MPEG4_DECODER) += x86/xvididct_mmx.o \


+ 103
- 0
libavcodec/x86/idctdsp.asm View File

@@ -78,3 +78,106 @@ INIT_MMX mmx
PUT_SIGNED_PIXELS_CLAMPED 0
INIT_XMM sse2
PUT_SIGNED_PIXELS_CLAMPED 3

;--------------------------------------------------------------------------
; void ff_put_pixels_clamped(const int16_t *block, uint8_t *pixels,
; ptrdiff_t line_size);
;--------------------------------------------------------------------------
; %1 = block offset
%macro PUT_PIXELS_CLAMPED_HALF 1
mova m0, [blockq+mmsize*0+%1]
mova m1, [blockq+mmsize*2+%1]
%if mmsize == 8
mova m2, [blockq+mmsize*4+%1]
mova m3, [blockq+mmsize*6+%1]
%endif
packuswb m0, [blockq+mmsize*1+%1]
packuswb m1, [blockq+mmsize*3+%1]
%if mmsize == 8
packuswb m2, [blockq+mmsize*5+%1]
packuswb m3, [blockq+mmsize*7+%1]
movq [pixelsq], m0
movq [lsizeq+pixelsq], m1
movq [2*lsizeq+pixelsq], m2
movq [lsize3q+pixelsq], m3
%else
movq [pixelsq], m0
movhps [lsizeq+pixelsq], m0
movq [2*lsizeq+pixelsq], m1
movhps [lsize3q+pixelsq], m1
%endif
%endmacro

%macro PUT_PIXELS_CLAMPED 0
cglobal put_pixels_clamped, 3, 4, 2, block, pixels, lsize, lsize3
lea lsize3q, [lsizeq*3]
PUT_PIXELS_CLAMPED_HALF 0
lea pixelsq, [pixelsq+lsizeq*4]
PUT_PIXELS_CLAMPED_HALF 64
RET
%endmacro

INIT_MMX mmx
PUT_PIXELS_CLAMPED
INIT_XMM sse2
PUT_PIXELS_CLAMPED

;--------------------------------------------------------------------------
; void ff_add_pixels_clamped(const int16_t *block, uint8_t *pixels,
; ptrdiff_t line_size);
;--------------------------------------------------------------------------
; %1 = block offset
%macro ADD_PIXELS_CLAMPED 1
mova m0, [blockq+mmsize*0+%1]
mova m1, [blockq+mmsize*1+%1]
%if mmsize == 8
mova m5, [blockq+mmsize*2+%1]
mova m6, [blockq+mmsize*3+%1]
%endif
movq m2, [pixelsq]
movq m3, [pixelsq+lsizeq]
%if mmsize == 8
mova m7, m2
punpcklbw m2, m4
punpckhbw m7, m4
paddsw m0, m2
paddsw m1, m7
mova m7, m3
punpcklbw m3, m4
punpckhbw m7, m4
paddsw m5, m3
paddsw m6, m7
%else
punpcklbw m2, m4
punpcklbw m3, m4
paddsw m0, m2
paddsw m1, m3
%endif
packuswb m0, m1
%if mmsize == 8
packuswb m5, m6
movq [pixelsq], m0
movq [pixelsq+lsizeq], m5
%else
movq [pixelsq], m0
movhps [pixelsq+lsizeq], m0
%endif
%endmacro

%macro ADD_PIXELS_CLAMPED 0
cglobal add_pixels_clamped, 3, 3, 5, block, pixels, lsize
pxor m4, m4
ADD_PIXELS_CLAMPED 0
lea pixelsq, [pixelsq+lsizeq*2]
ADD_PIXELS_CLAMPED 32
lea pixelsq, [pixelsq+lsizeq*2]
ADD_PIXELS_CLAMPED 64
lea pixelsq, [pixelsq+lsizeq*2]
ADD_PIXELS_CLAMPED 96
RET
%endmacro

INIT_MMX mmx
ADD_PIXELS_CLAMPED
INIT_XMM sse2
ADD_PIXELS_CLAMPED

+ 4
- 0
libavcodec/x86/idctdsp.h View File

@@ -23,8 +23,12 @@

void ff_add_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size);
void ff_add_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size);
void ff_put_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size);
void ff_put_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size);
void ff_put_signed_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size);
void ff_put_signed_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,


+ 4
- 3
libavcodec/x86/idctdsp_init.c View File

@@ -64,9 +64,6 @@ av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
int cpu_flags = av_get_cpu_flags();

if (INLINE_MMX(cpu_flags)) {
c->put_pixels_clamped = ff_put_pixels_clamped_mmx;
c->add_pixels_clamped = ff_add_pixels_clamped_mmx;

if (!high_bit_depth &&
avctx->lowres == 0 &&
(avctx->idct_algo == FF_IDCT_AUTO ||
@@ -80,8 +77,12 @@ av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
}
if (EXTERNAL_MMX(cpu_flags)) {
c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
c->put_pixels_clamped = ff_put_pixels_clamped_mmx;
c->add_pixels_clamped = ff_add_pixels_clamped_mmx;
}
if (EXTERNAL_SSE2(cpu_flags)) {
c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
c->put_pixels_clamped = ff_put_pixels_clamped_sse2;
c->add_pixels_clamped = ff_add_pixels_clamped_sse2;
}
}

+ 0
- 134
libavcodec/x86/idctdsp_mmx.c View File

@@ -1,134 +0,0 @@
/*
* SIMD-optimized IDCT-related routines
* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

#include "config.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/asm.h"
#include "libavcodec/idctdsp.h"
#include "idctdsp.h"
#include "inline_asm.h"

#if HAVE_INLINE_ASM

void ff_put_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size)
{
const int16_t *p;
uint8_t *pix;

/* read the pixels */
p = block;
pix = pixels;
/* unrolled loop */
__asm__ volatile (
"movq (%3), %%mm0 \n\t"
"movq 8(%3), %%mm1 \n\t"
"movq 16(%3), %%mm2 \n\t"
"movq 24(%3), %%mm3 \n\t"
"movq 32(%3), %%mm4 \n\t"
"movq 40(%3), %%mm5 \n\t"
"movq 48(%3), %%mm6 \n\t"
"movq 56(%3), %%mm7 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"packuswb %%mm5, %%mm4 \n\t"
"packuswb %%mm7, %%mm6 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm2, (%0, %1) \n\t"
"movq %%mm4, (%0, %1, 2) \n\t"
"movq %%mm6, (%0, %2) \n\t"
:: "r" (pix), "r" ((x86_reg) line_size), "r" ((x86_reg) line_size * 3),
"r" (p)
: "memory");
pix += line_size * 4;
p += 32;

// if here would be an exact copy of the code above
// compiler would generate some very strange code
// thus using "r"
__asm__ volatile (
"movq (%3), %%mm0 \n\t"
"movq 8(%3), %%mm1 \n\t"
"movq 16(%3), %%mm2 \n\t"
"movq 24(%3), %%mm3 \n\t"
"movq 32(%3), %%mm4 \n\t"
"movq 40(%3), %%mm5 \n\t"
"movq 48(%3), %%mm6 \n\t"
"movq 56(%3), %%mm7 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"packuswb %%mm5, %%mm4 \n\t"
"packuswb %%mm7, %%mm6 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm2, (%0, %1) \n\t"
"movq %%mm4, (%0, %1, 2) \n\t"
"movq %%mm6, (%0, %2) \n\t"
:: "r" (pix), "r" ((x86_reg) line_size), "r" ((x86_reg) line_size * 3),
"r" (p)
: "memory");
}

void ff_add_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
ptrdiff_t line_size)
{
const int16_t *p;
uint8_t *pix;
int i;

/* read the pixels */
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
i = 4;
do {
__asm__ volatile (
"movq (%2), %%mm0 \n\t"
"movq 8(%2), %%mm1 \n\t"
"movq 16(%2), %%mm2 \n\t"
"movq 24(%2), %%mm3 \n\t"
"movq %0, %%mm4 \n\t"
"movq %1, %%mm6 \n\t"
"movq %%mm4, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t"
"punpckhbw %%mm7, %%mm5 \n\t"
"paddsw %%mm4, %%mm0 \n\t"
"paddsw %%mm5, %%mm1 \n\t"
"movq %%mm6, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm6 \n\t"
"punpckhbw %%mm7, %%mm5 \n\t"
"paddsw %%mm6, %%mm2 \n\t"
"paddsw %%mm5, %%mm3 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"movq %%mm0, %0 \n\t"
"movq %%mm2, %1 \n\t"
: "+m" (*pix), "+m" (*(pix + line_size))
: "r" (p)
: "memory");
pix += line_size * 2;
p += 16;
} while (--i);
}

#endif /* HAVE_INLINE_ASM */

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