block_half.c
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:2k
源码类别:
Windows CE
开发平台:
C/C++
- /*****************************************************************************
- *
- * 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 02111-1307 USA
- *
- * $Id: block_half.c 284 2005-10-04 08:54:26Z picard $
- *
- * The Core Pocket Media Player
- * Copyright (c) 2004-2005 Gabor Kovacs
- *
- ****************************************************************************/
- #include "../common.h"
- #include "softidct.h"
- #if defined(CONFIG_IDCT_LOWRES)
- #define Statistics(a,b,c,d)
- void Copy420Half(softidct* p,int x,int y,int Forward)
- {
- SetPtr420(p,x,y,1);
- CopyBlock8x8(p->RefPtr[Forward],p->DstPtr,p->CurrPitch,p->CurrPitch);
- IncPtrLum(p);
- CopyBlock4x4(p->RefPtr[Forward],p->DstPtr,p->CurrPitch,p->CurrPitch);
- IncPtr(p,1,1);
- CopyBlock4x4(p->RefPtr[Forward],p->DstPtr,p->CurrPitch,p->CurrPitch);
- EMMS();
- }
- void Process420Half(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr420(p,x,y,1);
- ProcessTail(p,x,y);
- }
- void Process422Half(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr422(p,x,y,1);
- ProcessTail(p,x,y);
- }
- void Process444Half(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr444(p,x,y,1);
- ProcessTail(p,x,y);
- }
- #define HALF
- #define Intra8x8 Intra8x8Half
- #define Inter8x8Back Inter8x8BackHalf
- #define Inter8x8BackFwd Inter8x8BackFwdHalf
- #include "block.h"
- void Process420Quarter(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr420(p,x,y,2);
- ProcessTail(p,x,y);
- }
- void Process422Quarter(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr422(p,x,y,2);
- ProcessTail(p,x,y);
- }
- void Process444Quarter(softidct* p,int x,int y)
- {
- ProcessHead(p,x,y);
- SetPtr444(p,x,y,2);
- ProcessTail(p,x,y);
- }
- #undef HALF
- #define QUARTER
- #undef Intra8x8
- #define Intra8x8 Intra8x8Quarter
- #include "block.h"
- #endif