mc-c.c
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Audio
开发平台:
Visual C++
- /*****************************************************************************
- * mc.c: h264 encoder library (Motion Compensation)
- *****************************************************************************
- * Copyright (C) 2003 Laurent Aimar
- * $Id: mc-c.c,v 1.5 2004/06/18 01:59:58 chenm001 Exp $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include "common/common.h"
- /* NASM functions */
- extern void x264_pixel_avg_w4_mmxext( uint8_t *, int, uint8_t *, int, uint8_t *, int, int );
- extern void x264_pixel_avg_w8_mmxext( uint8_t *, int, uint8_t *, int, uint8_t *, int, int );
- extern void x264_pixel_avg_w16_mmxext( uint8_t *, int, uint8_t *, int, uint8_t *, int, int );
- extern void x264_pixel_avg_w16_sse2( uint8_t *, int, uint8_t *, int, uint8_t *, int, int );
- extern void x264_pixel_avg_weight_4x4_mmxext( uint8_t *, int, uint8_t *, int, int );
- extern void x264_pixel_avg_weight_w8_mmxext( uint8_t *, int, uint8_t *, int, int, int );
- extern void x264_pixel_avg_weight_w16_mmxext( uint8_t *, int, uint8_t *, int, int, int );
- extern void x264_mc_copy_w4_mmxext( uint8_t *, int, uint8_t *, int, int );
- extern void x264_mc_copy_w8_mmxext( uint8_t *, int, uint8_t *, int, int );
- extern void x264_mc_copy_w16_mmxext( uint8_t *, int, uint8_t *, int, int );
- extern void x264_mc_copy_w16_sse2( uint8_t *, int, uint8_t *, int, int );
- #define AVG(W,H)
- static void x264_pixel_avg_ ## W ## x ## H ## _mmxext( uint8_t *dst, int i_dst, uint8_t *src, int i_src )
- {
- x264_pixel_avg_w ## W ## _mmxext( dst, i_dst, dst, i_dst, src, i_src, H );
- }
- AVG(16,16)
- AVG(16,8)
- AVG(8,16)
- AVG(8,8)
- AVG(8,4)
- AVG(4,8)
- AVG(4,4)
- AVG(4,2)
- #define AVG_WEIGHT(W,H)
- void x264_pixel_avg_weight_ ## W ## x ## H ## _mmxext( uint8_t *dst, int i_dst, uint8_t *src, int i_src, int i_weight_dst )
- {
- x264_pixel_avg_weight_w ## W ## _mmxext( dst, i_dst, src, i_src, i_weight_dst, H );
- }
- AVG_WEIGHT(16,16)
- AVG_WEIGHT(16,8)
- AVG_WEIGHT(8,16)
- AVG_WEIGHT(8,8)
- AVG_WEIGHT(8,4)
- void mc_luma_mmx( uint8_t *src[4], int i_src_stride,
- uint8_t *dst, int i_dst_stride,
- int mvx,int mvy,
- int i_width, int i_height )
- {
- uint8_t *src1, *src2;
- int correction = (mvx&1) && (mvy&1) && ((mvx&2) ^ (mvy&2));
- int hpel1x = mvx>>1;
- int hpel1y = (mvy+1-correction)>>1;
- int filter1 = (hpel1x & 1) + ( (hpel1y & 1) << 1 );
- src1 = src[filter1] + (hpel1y >> 1) * i_src_stride + (hpel1x >> 1);
- if ( (mvx|mvy) & 1 ) /* qpel interpolation needed */
- {
- int hpel2x = (mvx+1)>>1;
- int hpel2y = (mvy+correction)>>1;
- int filter2 = (hpel2x & 1) + ( (hpel2y & 1) <<1 );
- src2 = src[filter2] + (hpel2y >> 1) * i_src_stride + (hpel2x >> 1);
- switch(i_width) {
- case 4:
- x264_pixel_avg_w4_mmxext( dst, i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- break;
- case 8:
- x264_pixel_avg_w8_mmxext( dst, i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- break;
- case 16:
- default:
- x264_pixel_avg_w16_mmxext(dst, i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- }
- }
- else
- {
- switch(i_width) {
- case 4:
- x264_mc_copy_w4_mmxext( dst, i_dst_stride, src1, i_src_stride, i_height );
- break;
- case 8:
- x264_mc_copy_w8_mmxext( dst, i_dst_stride, src1, i_src_stride, i_height );
- break;
- case 16:
- x264_mc_copy_w16_mmxext( dst, i_dst_stride, src1, i_src_stride, i_height );
- break;
- }
- }
- }
- uint8_t *get_ref_mmx( uint8_t *src[4], int i_src_stride,
- uint8_t *dst, int *i_dst_stride,
- int mvx,int mvy,
- int i_width, int i_height )
- {
- uint8_t *src1, *src2;
- int correction = (mvx&1) && (mvy&1) && ((mvx&2) ^ (mvy&2));
- int hpel1x = mvx>>1;
- int hpel1y = (mvy+1-correction)>>1;
- int filter1 = (hpel1x & 1) + ( (hpel1y & 1) << 1 );
- src1 = src[filter1] + (hpel1y >> 1) * i_src_stride + (hpel1x >> 1);
- if ( (mvx|mvy) & 1 ) /* qpel interpolation needed */
- {
- int hpel2x = (mvx+1)>>1;
- int hpel2y = (mvy+correction)>>1;
- int filter2 = (hpel2x & 1) + ( (hpel2y & 1) <<1 );
- src2 = src[filter2] + (hpel2y >> 1) * i_src_stride + (hpel2x >> 1);
- switch(i_width) {
- case 4:
- x264_pixel_avg_w4_mmxext( dst, *i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- break;
- case 8:
- x264_pixel_avg_w8_mmxext( dst, *i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- break;
- case 16:
- default:
- x264_pixel_avg_w16_mmxext(dst, *i_dst_stride, src1, i_src_stride,
- src2, i_src_stride, i_height );
- }
- return dst;
- }
- else
- {
- *i_dst_stride = i_src_stride;
- return src1;
- }
- }
- void x264_mc_mmxext_init( x264_mc_functions_t *pf )
- {
- pf->mc_luma = mc_luma_mmx;
- pf->get_ref = get_ref_mmx;
- pf->avg[PIXEL_16x16] = x264_pixel_avg_16x16_mmxext;
- pf->avg[PIXEL_16x8] = x264_pixel_avg_16x8_mmxext;
- pf->avg[PIXEL_8x16] = x264_pixel_avg_8x16_mmxext;
- pf->avg[PIXEL_8x8] = x264_pixel_avg_8x8_mmxext;
- pf->avg[PIXEL_8x4] = x264_pixel_avg_8x4_mmxext;
- pf->avg[PIXEL_4x8] = x264_pixel_avg_4x8_mmxext;
- pf->avg[PIXEL_4x4] = x264_pixel_avg_4x4_mmxext;
- pf->avg[PIXEL_4x2] = x264_pixel_avg_4x2_mmxext;
- pf->avg_weight[PIXEL_16x16] = x264_pixel_avg_weight_16x16_mmxext;
- pf->avg_weight[PIXEL_16x8] = x264_pixel_avg_weight_16x8_mmxext;
- pf->avg_weight[PIXEL_8x16] = x264_pixel_avg_weight_8x16_mmxext;
- pf->avg_weight[PIXEL_8x8] = x264_pixel_avg_weight_8x8_mmxext;
- pf->avg_weight[PIXEL_8x4] = x264_pixel_avg_weight_8x4_mmxext;
- pf->avg_weight[PIXEL_4x4] = x264_pixel_avg_weight_4x4_mmxext;
- // avg_weight_4x8 is rare and 4x2 is not used
- pf->copy[PIXEL_16x16] = x264_mc_copy_w16_mmxext;
- pf->copy[PIXEL_8x8] = x264_mc_copy_w8_mmxext;
- pf->copy[PIXEL_4x4] = x264_mc_copy_w4_mmxext;
- }
- void x264_mc_sse2_init( x264_mc_functions_t *pf )
- {
- /* todo: use sse2 */
- pf->mc_luma = mc_luma_mmx;
- pf->get_ref = get_ref_mmx;
- }