update for HEAD-2003091401
[reactos.git] / subsys / win32k / dib / dib4bpp.c
index e8231bb..3a4bd4b 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>
@@ -8,7 +27,8 @@
 #include "../eng/objects.h"
 #include "dib.h"
 
-VOID DIB_4BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
+VOID
+DIB_4BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
 {
   PBYTE addr = SurfObj->pvScan0;
 
@@ -16,14 +36,16 @@ VOID DIB_4BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
   *addr = (*addr & notmask[x&1]) | (c << ((1-(x&1))<<2));
 }
 
-ULONG DIB_4BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
+ULONG
+DIB_4BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
 {
   PBYTE addr = SurfObj->pvScan0;
 
   return (addr[(x>>1) + y * SurfObj->lDelta] >> ((1-(x&1))<<2) ) & 0x0f;
 }
 
-VOID DIB_4BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
+VOID
+DIB_4BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
 {
   PBYTE  addr = SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
   LONG  cx = x1;
@@ -36,7 +58,8 @@ VOID DIB_4BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
   }
 }
 
-VOID DIB_4BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
+VOID
+DIB_4BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
 {
   PBYTE  addr = SurfObj->pvScan0;
   int  lDelta = SurfObj->lDelta;
@@ -48,12 +71,13 @@ VOID DIB_4BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
   }
 }
 
-BOOLEAN DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
-                        SURFGDI *DestGDI,  SURFGDI *SourceGDI,
-                        PRECTL  DestRect,  POINTL  *SourcePoint,
-                        XLATEOBJ *ColorTranslation)
+BOOLEAN STATIC
+DIB_4BPP_BitBltSrcCopy(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+                      SURFGDI *DestGDI,  SURFGDI *SourceGDI,
+                      PRECTL  DestRect,  POINTL  *SourcePoint,
+                      XLATEOBJ* ColorTranslation)
 {
-  LONG     i, j, sx, sy, f1, f2, xColor;
+  LONG     i, j, sx, sy, f2, xColor;
   PBYTE    SourceBits_24BPP, SourceLine_24BPP;
   PBYTE    DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
   PBYTE    SourceBits, SourceLine;
@@ -92,7 +116,14 @@ BOOLEAN DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 
         for (i=DestRect->left; i<DestRect->right; i++)
         {
-          DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy)));
+         if (NULL != ColorTranslation)
+         {
+           DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy)));
+         }
+         else
+         {
+           DIB_4BPP_PutPixel(DestSurf, i, j, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
+         }
           sx++;
         }
         sy++;
@@ -198,6 +229,92 @@ BOOLEAN DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
       DbgPrint("DIB_4BPP_Bitblt: Unhandled Source BPP: %u\n", SourceGDI->BitsPerPixel);
       return FALSE;
   }
+  return(TRUE);
+}
+
+BOOLEAN
+DIB_4BPP_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 & 0x7);
+  static const ULONG ExpandSolidColor[16] = 
+    {
+      0x00000000 /* 0 */,
+      0x11111111 /* 1 */,
+      0x22222222 /* 2 */,
+      0x33333333 /* 3 */,
+      0x44444444 /* 4 */,
+      0x55555555 /* 5 */,
+      0x66666666 /* 6 */,
+      0x77777777 /* 7 */,
+      0x88888888 /* 8 */,
+      0x99999999 /* 9 */,
+      0xAAAAAAAA /* 10 */,
+      0xBBBBBBBB /* 11 */,
+      0xCCCCCCCC /* 12 */,
+      0xDDDDDDDD /* 13 */,
+      0xEEEEEEEE /* 14 */,
+      0xFFFFFFFF /* 15 */,
+    };
+
+  if (Rop4 == SRCCOPY)
+    {
+      return(DIB_4BPP_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>>1) + j * DestSurf->lDelta);
+        for (i=DestRect->left; i<RoundedRight; i+=8, DestBits++)
+         {
+           Dest = *DestBits;
+           if (UsesSource)
+             {
+               Source = 0;
+               for (k = 0; k < 8; k++)
+                 {
+                   Source |= (DIB_GetSource(SourceSurf, SourceGDI, sx + i + k, sy, ColorTranslation) << (k * 4));
+                 }
+             }
+           if (UsesPattern)
+             {
+               /* FIXME: No support for pattern brushes. */
+               Pattern = ExpandSolidColor[Brush->iSolidColor & 0xF];
+             }
+           *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 = ExpandSolidColor[Brush->iSolidColor & 0xF];
+                 }                             
+               DIB_4BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xF);
+               Dest >>= 4;
+             }  
+         }
+      }
+    }
   return TRUE;
 }
+/* EOF */