reactos/subsystems/win32/win32k/diblib/DibLib_BitBlt.h

   1
   2 #if __USES_SOLID_BRUSH
   3 #undef __USES_PATTERN
   4 #define __USES_PATTERN 0
   5 #endif
   6
   7 #define _DibFunction __DIB_FUNCTION_NAME(__FUNCTIONNAME, _SOURCE_BPP, _DEST_BPP)
   8 #define _ReadPixel(bpp, pj, jShift) __PASTE(_ReadPixel_, bpp)(pj, jShift)
   9 #define _WritePixel(pj, jShift, c) __PASTE(_WritePixel_, _DEST_BPP)(pj, jShift, c)
  10 #define _NextPixel(bpp, ppj, pjShift) __PASTE(_NextPixel_, bpp)(ppj, pjShift)
  11 #define _SHIFT(bpp, x) __PASTE(_SHIFT_, bpp)(x)
  12 #define _CALCSHIFT(bpp, pshift, x) __PASTE(_CALCSHIFT_, bpp)(pshift, x)
  13
  14 #if (__PASTE(_DibFunction, _manual) != 1)
  15
  16 VOID
  17 FASTCALL
  18 _DibFunction(PBLTDATA pBltData)
  19 {
  20     ULONG cRows, cLines, ulDest;
  21     PBYTE pjDest, pjDestBase;
  22     _SHIFT(_DEST_BPP, BYTE jDstShift;)
  23 #if __USES_MASK
  24     PBYTE pjMask, pjMaskBase;
  25     BYTE jMaskBit, jMskShift;
  26 #endif
  27 #if __USES_SOURCE
  28     PBYTE pjSource, pjSrcBase;
  29     ULONG ulSource;
  30     _SHIFT(_SOURCE_BPP, BYTE jSrcShift;)
  31 #endif
  32 #if __USES_PATTERN
  33     PBYTE pjPattern, pjPatBase;
  34     ULONG ulPattern, cPatRows, cPatLines;
  35     _SHIFT(_DEST_BPP, BYTE jPatShift;)
  36 #endif
  37 #if __USES_SOLID_BRUSH
  38     ULONG ulPattern = pBltData->ulSolidColor;
  39 #endif
  40
  41 #if __USES_MASK
  42     pjMaskBase = pBltData->siMsk.pjBase;
  43 #endif
  44 #if __USES_PATTERN
  45     pjPatBase = pBltData->siPat.pjBase;
  46     pjPatBase += pBltData->siPat.ptOrig.y * pBltData->siPat.lDelta;
  47     pjPattern = pjPatBase + pBltData->siPat.ptOrig.x * _DEST_BPP / 8;
  48     _CALCSHIFT(_DEST_BPP, &jPatShift, pBltData->siPat.ptOrig.x);
  49     cPatLines = pBltData->ulPatHeight - pBltData->siPat.ptOrig.y;
  50     cPatRows = pBltData->ulPatWidth - pBltData->siPat.ptOrig.x;
  51 #endif
  52     pjDestBase = pBltData->siDst.pjBase;
  53 #if __USES_SOURCE
  54     pjSrcBase = pBltData->siSrc.pjBase;
  55 #endif
  56
  57     /* Loop all lines */
  58     cLines = pBltData->ulHeight;
  59     while (cLines--)
  60     {
  61         /* Set current bit pointers and shifts */
  62         pjDest = pjDestBase;
  63         _CALCSHIFT(_DEST_BPP, &jDstShift, pBltData->siDst.ptOrig.x);
  64 #if __USES_SOURCE
  65         pjSource = pjSrcBase;
  66         _CALCSHIFT(_SOURCE_BPP, &jSrcShift, pBltData->siSrc.ptOrig.x);
  67 #endif
  68 #if __USES_MASK
  69         pjMask = pjMaskBase;
  70         _CALCSHIFT_1(&jMskShift, pBltData->siMsk.ptOrig.x);
  71 #endif
  72
  73         /* Loop all rows */
  74         cRows = pBltData->ulWidth;
  75         while (cRows--)
  76         {
  77 #if __USES_MASK
  78             /* Read the mask color and go to the next mask pixel */
  79             jMaskBit = _ReadPixel_1(pjMask, jMskShift);
  80             _NextPixel(1, &pjMask, &jMskShift);
  81 #endif
  82 #if __USES_PATTERN
  83             /* Read the pattern color and go to the next pattern pixel */
  84             ulPattern = _ReadPixel(_DEST_BPP, pjPattern, jPatShift);
  85             _NextPixel(_DEST_BPP, &pjPattern, &jPatShift);
  86
  87             /* Check if this was the last pixel in the pattern */
  88             if (--cPatRows == 0)
  89             {
  90                 /* Restart pattern from x = 0 */
  91                 pjPattern = pjPatBase;
  92                 _SHIFT(_DEST_BPP, jPatShift = (_DEST_BPP == 1) ? 7 : 4;)
  93                 cPatRows = pBltData->ulPatWidth;
  94             }
  95 #endif
  96 #if __USES_SOURCE
  97             /* Read the pattern color, xlate it and go to the next pixel */
  98             ulSource = _ReadPixel(_SOURCE_BPP, pjSource, jSrcShift);
  99             ulSource = _DibXlate(pBltData, ulSource);
 100             _NextPixel(_SOURCE_BPP, &pjSource, &jSrcShift);
 101 #endif
 102 #if __USES_DEST
 103             ulDest = _ReadPixel(_DEST_BPP, pjDest, jDstShift);
 104 #endif
 105             /* Apply the ROP operation on the colors */
 106             ulDest = _DibDoRop(pBltData, jMaskBit, ulDest, ulSource, ulPattern);
 107
 108             /* Write the pixel and go to the next dest pixel */
 109             _WritePixel(pjDest, jDstShift, ulDest);
 110             _NextPixel(_DEST_BPP, &pjDest, &jDstShift);
 111         }
 112
 113         pjDestBase += pBltData->siDst.cjAdvanceY;
 114 #if __USES_SOURCE
 115         pjSrcBase += pBltData->siSrc.cjAdvanceY;
 116 #endif
 117 #if __USES_PATTERN
 118         /* Go to the next pattern line */
 119         pjPatBase += pBltData->siPat.cjAdvanceY;
 120
 121         /* Check if this was the last line in the pattern */
 122         if (--cPatLines == 0)
 123         {
 124             /* Restart pattern from y = 0 */
 125             pjPatBase = pBltData->siPat.pjBase;
 126             cPatLines = pBltData->ulPatHeight;
 127         }
 128 #endif
 129     }
 130 }
 131
 132 #endif // manual
 133
 134 #undef _DibFunction
 135 #undef __FUNCTIONNAME2