dlls/quartz/videoblt.c

   1 /*
   2  * Copyright (C) Hidenori TAKESHIMA
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include "windef.h"
  22 #include "wingdi.h"
  23
  24 #include "wine/debug.h"
  25 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  26
  27 #include "videoblt.h"
  28
  29
  30 #define QUARTZ_LOBYTE(pix)      ((BYTE)((pix)&0xff))
  31 #define QUARTZ_HIBYTE(pix)      ((BYTE)((pix)>>8))
  32
  33 void VIDEOBLT_Blt_888_to_332(
  34         BYTE* pDst, LONG pitchDst,
  35         const BYTE* pSrc, LONG pitchSrc,
  36         LONG width, LONG height,
  37         const RGBQUAD* prgbSrc, LONG nClrUsed )
  38 {
  39         LONG x,y;
  40
  41         for ( y = 0; y < height; y++ )
  42         {
  43                 for ( x = 0; x < width; x++ )
  44                 {
  45                         *pDst++ = ((pSrc[2]&0xe0)   ) |
  46                                           ((pSrc[1]&0xe0)>>3) |
  47                                           ((pSrc[0]&0xc0)>>6);
  48                         pSrc += 3;
  49                 }
  50                 pDst += pitchDst - width;
  51                 pSrc += pitchSrc - width*3;
  52         }
  53 }
  54
  55 void VIDEOBLT_Blt_888_to_555(
  56         BYTE* pDst, LONG pitchDst,
  57         const BYTE* pSrc, LONG pitchSrc,
  58         LONG width, LONG height,
  59         const RGBQUAD* prgbSrc, LONG nClrUsed )
  60 {
  61         LONG x,y;
  62         unsigned pix;
  63
  64         for ( y = 0; y < height; y++ )
  65         {
  66                 for ( x = 0; x < width; x++ )
  67                 {
  68                         pix = ((unsigned)(pSrc[2]&0xf8)<<7) |
  69                                   ((unsigned)(pSrc[1]&0xf8)<<2) |
  70                                   ((unsigned)(pSrc[0]&0xf8)>>3);
  71                         *pDst++ = QUARTZ_LOBYTE(pix);
  72                         *pDst++ = QUARTZ_HIBYTE(pix);
  73                         pSrc += 3;
  74                 }
  75                 pDst += pitchDst - width*2;
  76                 pSrc += pitchSrc - width*3;
  77         }
  78 }
  79
  80 void VIDEOBLT_Blt_888_to_565(
  81         BYTE* pDst, LONG pitchDst,
  82         const BYTE* pSrc, LONG pitchSrc,
  83         LONG width, LONG height,
  84         const RGBQUAD* prgbSrc, LONG nClrUsed )
  85 {
  86         LONG x,y;
  87         unsigned pix;
  88
  89         for ( y = 0; y < height; y++ )
  90         {
  91                 for ( x = 0; x < width; x++ )
  92                 {
  93                         pix = ((unsigned)(pSrc[2]&0xf8)<<8) |
  94                                   ((unsigned)(pSrc[1]&0xfc)<<3) |
  95                                   ((unsigned)(pSrc[0]&0xf8)>>3);
  96                         *pDst++ = QUARTZ_LOBYTE(pix);
  97                         *pDst++ = QUARTZ_HIBYTE(pix);
  98                         pSrc += 3;
  99                 }
 100                 pDst += pitchDst - width*2;
 101                 pSrc += pitchSrc - width*3;
 102         }
 103 }
 104
 105 void VIDEOBLT_Blt_888_to_8888(
 106         BYTE* pDst, LONG pitchDst,
 107         const BYTE* pSrc, LONG pitchSrc,
 108         LONG width, LONG height,
 109         const RGBQUAD* prgbSrc, LONG nClrUsed )
 110 {
 111         LONG x,y;
 112
 113         for ( y = 0; y < height; y++ )
 114         {
 115                 for ( x = 0; x < width; x++ )
 116                 {
 117                         *pDst++ = *pSrc++;
 118                         *pDst++ = *pSrc++;
 119                         *pDst++ = *pSrc++;
 120                         *pDst++ = (BYTE)0xff;
 121                 }
 122                 pDst += pitchDst - width*4;
 123                 pSrc += pitchSrc - width*3;
 124         }
 125 }
 126