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Code Issues Releases Activity

dnxhd get_pixels_8x4_sym sse2

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Originally committed as revision 16072 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2008-12-12 00:19:14 +00:00
parent e1b24cfddb
commit 193ce3ab78
4 changed files with 70 additions and 4 deletions
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1
libavcodec/Makefile
View File

@ -408,6 +408,7 @@ MMX-OBJS-$(CONFIG_WMV3_DECODER) += i386/vc1dsp_mmx.o
MMX-OBJS-$(HAVE_YASM) += i386/dsputil_yasm.o
OBJS-$(HAVE_MMX) += i386/cpuid.o \
i386/dnxhd_mmx.o \
i386/dsputil_mmx.o \
i386/fdct_mmx.o \
i386/idct_mmx_xvid.o \

13
libavcodec/dnxhdenc.c
View File

@ -173,8 +173,13 @@ static int dnxhd_encode_init(AVCodecContext *avctx)
ctx->m.mb_intra = 1;
ctx->m.h263_aic = 1;
ctx->get_pixels_8x4_sym = dnxhd_get_pixels_8x4;
dsputil_init(&ctx->m.dsp, avctx);
ff_dct_common_init(&ctx->m);
#ifdef HAVE_MMX
ff_dnxhd_init_mmx(ctx);
#endif
if (!ctx->m.dct_quantize)
ctx->m.dct_quantize = dct_quantize_c;
@ -361,10 +366,10 @@ static av_always_inline void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, in
if (mb_y+1 == ctx->m.mb_height && ctx->m.avctx->height == 1080) {
if (ctx->interlaced) {
dnxhd_get_pixels_8x4(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
dnxhd_get_pixels_8x4(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
dnxhd_get_pixels_8x4(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
dnxhd_get_pixels_8x4(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
ctx->get_pixels_8x4_sym(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
ctx->get_pixels_8x4_sym(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
ctx->get_pixels_8x4_sym(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
ctx->get_pixels_8x4_sym(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
} else {
dsp->clear_block(ctx->blocks[4]); dsp->clear_block(ctx->blocks[5]);
dsp->clear_block(ctx->blocks[6]); dsp->clear_block(ctx->blocks[7]);

2
libavcodec/dnxhdenc.h
View File

@ -81,6 +81,8 @@ typedef struct DNXHDEncContext {
RCCMPEntry *mb_cmp;
RCEntry (*mb_rc)[8160];
void (*get_pixels_8x4_sym)(DCTELEM */*align 16*/, const uint8_t *, int);
} DNXHDEncContext;
void ff_dnxhd_init_mmx(DNXHDEncContext *ctx);

58
libavcodec/i386/dnxhd_mmx.c Normal file
View File

@ -0,0 +1,58 @@
/*
* VC3/DNxHD SIMD functions
* Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
*
* VC-3 encoder funded by the British Broadcasting Corporation
*
* 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 "libavutil/x86_cpu.h"
#include "libavcodec/dnxhdenc.h"
static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size)
{
__asm__ volatile(
"pxor %%xmm7, %%xmm7 \n\t"
"movq (%0), %%xmm0 \n\t"
"add %2, %0 \n\t"
"movq (%0), %%xmm1 \n\t"
"movq (%0, %2), %%xmm2 \n\t"
"movq (%0, %2,2), %%xmm3 \n\t"
"punpcklbw %%xmm7, %%xmm0 \n\t"
"punpcklbw %%xmm7, %%xmm1 \n\t"
"punpcklbw %%xmm7, %%xmm2 \n\t"
"punpcklbw %%xmm7, %%xmm3 \n\t"
"movdqa %%xmm0, (%1) \n\t"
"movdqa %%xmm1, 16(%1) \n\t"
"movdqa %%xmm2, 32(%1) \n\t"
"movdqa %%xmm3, 48(%1) \n\t"
"movdqa %%xmm3 , 64(%1) \n\t"
"movdqa %%xmm2 , 80(%1) \n\t"
"movdqa %%xmm1 , 96(%1) \n\t"
"movdqa %%xmm0, 112(%1) \n\t"
: "+r" (pixels)
: "r" (block), "r" ((x86_reg)line_size)
);
}
void ff_dnxhd_init_mmx(DNXHDEncContext *ctx)
{
if (mm_flags & FF_MM_SSE2) {
ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2;
}
}