[cvs] / xvidcore / src / image / interpolate8x8.h Repository:
ViewVC logotype

Diff of /xvidcore/src/image/interpolate8x8.h

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.5.2.1, Mon Sep 23 20:36:01 2002 UTC revision 1.6, Fri Sep 6 17:37:07 2002 UTC
# Line 1  Line 1 
1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - 8x8 block-based halfpel interpolation - headers
5     *
6     *  Copyright(C) 2002 Peter Ross <pross@xvid.org>
7     *
8     *  This program is an implementation of a part of one or more MPEG-4
9     *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
10     *  to use this software module in hardware or software products are
11     *  advised that its use may infringe existing patents or copyrights, and
12     *  any such use would be at such party's own risk.  The original
13     *  developer of this software module and his/her company, and subsequent
14     *  editors and their companies, will have no liability for use of this
15     *  software or modifications or derivatives thereof.
16     *
17     *  This program is free software; you can redistribute it and/or modify
18     *  it under the terms of the GNU General Public License as published by
19     *  the Free Software Foundation; either version 2 of the License, or
20     *  (at your option) any later version.
21     *
22     *  This program is distributed in the hope that it will be useful,
23     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
24     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25     *  GNU General Public License for more details.
26     *
27     *  You should have received a copy of the GNU General Public License
28     *  along with this program; if not, write to the Free Software
29     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
30     *
31     ****************************************************************************/
32    
33  #include "../utils/mem_transfer.h"  #include "../utils/mem_transfer.h"
34    
35  typedef void (INTERPOLATE8X8) (uint8_t * const dst,  typedef void (INTERPOLATE8X8) (uint8_t * const dst,
# Line 89  Line 121 
121          }          }
122  }  }
123    
 static __inline uint8_t *  
 interpolate8x8_switch2(uint8_t * const buffer,  
                                           const uint8_t * const refn,  
                                           const uint32_t x,  
                                           const uint32_t y,  
                                           const int32_t dx,  
                                           const int dy,  
                                           const uint32_t stride,  
                                           const uint32_t rounding)  
 {  
         int32_t ddx, ddy;  
   
         switch (((dx & 1) << 1) + (dy & 1))     // ((dx%2)?2:0)+((dy%2)?1:0)  
         {  
         case 0:  
                 return (uint8_t *)refn + (int)((y + dy/2) * stride + x + dx/2);  
   
         case 1:  
                 ddx = dx / 2;  
                 ddy = (dy - 1) / 2;  
                 interpolate8x8_halfpel_v(buffer,  
                                                                  refn + (int)((y + ddy) * stride + x + ddx), stride,  
                                                                  rounding);  
                 break;  
   
         case 2:  
                 ddx = (dx - 1) / 2;  
                 ddy = dy / 2;  
                 interpolate8x8_halfpel_h(buffer,  
                                                                  refn + (int)((y + ddy) * stride + x + ddx), stride,  
                                                                  rounding);  
                 break;  
   
         default:  
                 ddx = (dx - 1) / 2;  
                 ddy = (dy - 1) / 2;  
                 interpolate8x8_halfpel_hv(buffer,  
                                                                  refn + (int)((y + ddy) * stride + x + ddx), stride,  
                                                                   rounding);  
                 break;  
         }  
         return buffer;  
 }  
   
   
124    
125  static void  static __inline void interpolate8x8_quarterpel(uint8_t * const cur,
 interpolate8x8_quarterpel(uint8_t * const cur,  
126                                       uint8_t * const refn,                                       uint8_t * const refn,
127                                       const uint32_t x, const uint32_t y,                                       const uint32_t x, const uint32_t y,
128                                           const int32_t dx,  const int dy,                                           const int32_t dx,  const int dy,
Legend:
Removed from v.1.5.2.1  
changed lines
  Added in v.1.6
No admin address has been configured
 ViewVC Help
Powered by ViewVC 1.0.4