branch update for HEAD-2003091401
[reactos.git] / subsys / win32k / dib / dib8bpp.c
index 84bd38c..a3fa91a 100644 (file)
@@ -1,3 +1,22 @@
+/*
+ *  ReactOS W32 Subsystem
+ *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/* $Id$ */
 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>
 #include "../eng/objects.h"
 #include "dib.h"
 
-VOID DIB_8BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
+VOID
+DIB_8BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
 {
   PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta + x;
 
   *byteaddr = c;
 }
 
-ULONG DIB_8BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
+ULONG
+DIB_8BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
 {
   PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta + x;
 
   return (ULONG)(*byteaddr);
 }
 
-VOID DIB_8BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
+VOID
+DIB_8BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
 {
   PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta;
   PBYTE addr = byteaddr + x1;
@@ -35,7 +57,8 @@ VOID DIB_8BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
   }
 }
 
-VOID DIB_8BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
+VOID
+DIB_8BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
 {
   PBYTE byteaddr = SurfObj->pvScan0 + y1 * SurfObj->lDelta;
   PBYTE addr = byteaddr + x;
@@ -49,12 +72,13 @@ VOID DIB_8BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
   }
 }
 
-BOOLEAN DIB_8BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
-                        SURFGDI *DestGDI,  SURFGDI *SourceGDI,
-                        PRECTL  DestRect,  POINTL  *SourcePoint,
-                        XLATEOBJ *ColorTranslation)
+BOOLEAN
+DIB_8BPP_BitBltSrcCopy(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+                      SURFGDI *DestGDI,  SURFGDI *SourceGDI,
+                      PRECTL  DestRect,  POINTL  *SourcePoint,
+                      XLATEOBJ *ColorTranslation)
 {
-  ULONG     i, j, sx, sy, xColor, f1;
+  LONG     i, j, sx, sy, xColor, f1;
   PBYTE    SourceBits, DestBits, SourceLine, DestLine;
   PBYTE    SourceBits_4BPP, SourceLine_4BPP;
 
@@ -108,19 +132,62 @@ BOOLEAN DIB_8BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
     case 8:
       if (NULL == ColorTranslation || 0 != (ColorTranslation->flXlate & XO_TRIVIAL))
       {
-       SourceBits = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
-       for (j = DestRect->top; j < DestRect->bottom; j++)
-       {
-         RtlCopyMemory(DestBits, SourceBits, DestRect->right - DestRect->left);
-         SourceBits += SourceSurf->lDelta;
-         DestBits += DestSurf->lDelta;
-       }
+       if (DestRect->top < SourcePoint->y)
+         {
+           SourceBits = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
+           for (j = DestRect->top; j < DestRect->bottom; j++)
+             {
+               RtlMoveMemory(DestBits, SourceBits, DestRect->right - DestRect->left);
+               SourceBits += SourceSurf->lDelta;
+               DestBits += DestSurf->lDelta;
+             }
+         }
+       else
+         {
+           SourceBits = SourceSurf->pvScan0 + ((SourcePoint->y + DestRect->bottom - DestRect->top - 1) * SourceSurf->lDelta) + SourcePoint->x;
+           DestBits = DestSurf->pvScan0 + ((DestRect->bottom - 1) * DestSurf->lDelta) + DestRect->left;
+           for (j = DestRect->bottom - 1; DestRect->top <= j; j--)
+             {
+               RtlMoveMemory(DestBits, SourceBits, DestRect->right - DestRect->left);
+               SourceBits -= SourceSurf->lDelta;
+               DestBits -= DestSurf->lDelta;
+             }
+         }
       }
       else
       {
-       /* FIXME */
-       DPRINT1("DIB_8BPP_Bitblt: Unhandled ColorTranslation for 32 -> 32 copy");
-        return FALSE;
+       if (DestRect->top < SourcePoint->y)
+         {
+           SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
+           DestLine = DestBits;
+           for (j = DestRect->top; j < DestRect->bottom; j++)
+             {
+               SourceBits = SourceLine;
+               DestBits = DestLine;
+               for (i=DestRect->left; i<DestRect->right; i++)
+                 {
+                   *DestBits++ = XLATEOBJ_iXlate(ColorTranslation, *SourceBits++);
+                 }
+               SourceLine += SourceSurf->lDelta;
+               DestLine += DestSurf->lDelta;
+             }
+         }
+       else
+         {
+           SourceLine = SourceSurf->pvScan0 + ((SourcePoint->y + DestRect->bottom - DestRect->top - 1) * SourceSurf->lDelta) + SourcePoint->x;
+           DestLine = DestSurf->pvScan0 + ((DestRect->bottom - 1) * DestSurf->lDelta) + DestRect->left;
+           for (j = DestRect->bottom - 1; DestRect->top <= j; j--)
+             {
+               SourceBits = SourceLine;
+               DestBits = DestLine;
+               for (i=DestRect->left; i<DestRect->right; i++)
+                 {
+                   *DestBits++ = XLATEOBJ_iXlate(ColorTranslation, *SourceBits++);
+                 }
+               SourceLine -= SourceSurf->lDelta;
+               DestLine -= DestSurf->lDelta;
+             }
+         }
       }
       break;
 
@@ -199,3 +266,78 @@ BOOLEAN DIB_8BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 
   return TRUE;
 }
+
+BOOLEAN
+DIB_8BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+                SURFGDI *DestGDI,  SURFGDI *SourceGDI,
+                PRECTL  DestRect,  POINTL  *SourcePoint,
+                PBRUSHOBJ Brush, PPOINTL BrushOrigin,
+                XLATEOBJ *ColorTranslation, ULONG Rop4)
+{
+  LONG     i, j, k, sx, sy;
+  ULONG    Dest, Source, Pattern;
+  PULONG   DestBits;
+  BOOL     UsesSource = ((Rop4 & 0xCC0000) >> 2) != (Rop4 & 0x330000);
+  BOOL     UsesPattern = ((Rop4 & 0xF00000) >> 4) != (Rop4 & 0x0F0000);  
+  LONG     RoundedRight = DestRect->right - (DestRect->right & 0x3);
+
+  if (Rop4 == SRCCOPY)
+    {
+      return(DIB_8BPP_BitBltSrcCopy(DestSurf, SourceSurf, DestGDI, SourceGDI, DestRect, SourcePoint, ColorTranslation));
+    }
+  else
+    {
+      sy = SourcePoint->y;
+
+      for (j=DestRect->top; j<DestRect->bottom; j++)
+      {
+        sx = SourcePoint->x;
+       DestBits = (PULONG)(DestSurf->pvScan0 + DestRect->left + j * DestSurf->lDelta);
+        for (i=DestRect->left; i<RoundedRight; i+=4, DestBits++)
+         {
+           Dest = *DestBits;
+           if (UsesSource)
+             {
+               Source = 0;
+               for (k = 0; k < 4; k++)
+                 {
+                   Source |= (DIB_GetSource(SourceSurf, SourceGDI, sx + i + k, sy, ColorTranslation) << (k * 8));
+                 }
+             }
+           if (UsesPattern)
+             {
+               /* FIXME: No support for pattern brushes. */
+               Pattern = (Brush->iSolidColor & 0xFF) |
+                          ((Brush->iSolidColor & 0xFF) << 8) |
+                          ((Brush->iSolidColor & 0xFF) << 16) |
+                          ((Brush->iSolidColor & 0xFF) << 24);
+             }
+           *DestBits = DIB_DoRop(Rop4, Dest, Source, Pattern);     
+         }
+       if (i < DestRect->right)
+         {
+           Dest = *DestBits;
+           for (; i < DestRect->right; i++)
+             {
+               if (UsesSource)
+                 {
+                   Source = DIB_GetSource(SourceSurf, SourceGDI, sx + i, sy, ColorTranslation);
+                 }
+               if (UsesPattern)
+                 {
+                   /* FIXME: No support for pattern brushes. */
+                   Pattern = (Brush->iSolidColor & 0xFF) |
+                              ((Brush->iSolidColor & 0xFF) << 8) |
+                              ((Brush->iSolidColor & 0xFF) << 16) |
+                              ((Brush->iSolidColor & 0xFF) << 24);
+                 }                             
+               DIB_8BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xFFFF);
+               Dest >>= 8;
+             }  
+         }
+      }
+    }
+  return TRUE;
+}
+
+/* EOF */