addding new streach code for dib8, left to add it is dib1, dib4, dib24, dib32

svn path=/trunk/; revision=20546

diff --git a/reactos/subsys/win32k/dib/dib16bpp.c b/reactos/subsys/win32k/dib/dib16bpp.c
index bfe598b..8928359 100644 (file)
--- a/reactos/subsys/win32k/dib/dib16bpp.c
+++ b/reactos/subsys/win32k/dib/dib16bpp.c
@@ -603,6 +603,44 @@ BOOLEAN ScaleRectAvg16(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
   return TRUE;
 }
 
+/* check clib region */
+BOOLEAN CheckClipRegion(CLIPOBJ *ClipRegion, RECTL* DestRect, int DesX, int DesY)
+{
+  BOOLEAN  status = FALSE;
+  PSPAN ClipSpans;
+  UINT ClipSpansCount;
+  UINT SpanIndex = 0;
+
+  if (! ClipobjToSpans(&ClipSpans, &ClipSpansCount, ClipRegion, DestRect))
+  {
+      return FALSE;
+  }
+    
+  if (0 == ClipSpansCount)
+  {
+      /* No clip spans == empty clipping region, everything clipped away */
+      ASSERT(NULL == ClipSpans);
+      return FALSE;
+  }
+
+  for  (SpanIndex=0; SpanIndex<ClipSpansCount;SpanIndex++)
+  {
+          if (ClipSpans[SpanIndex].Y < DesY)
+                  status = FALSE;
+      
+          if (ClipSpans[SpanIndex].Y+ClipSpans[SpanIndex].Height > DesY)
+          status = FALSE;
+  
+       if (ClipSpans[SpanIndex].X > DesX)
+           status = FALSE;
+      
+      if (ClipSpans[SpanIndex].X+ClipSpans[SpanIndex].Width > DesX)
+          status = FALSE;
+   }
+   
+  return status;
+}
+
 //NOTE: If you change something here, please do the same in other dibXXbpp.c files!
 BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
                              RECTL* DestRect, RECTL *SourceRect,
@@ -677,19 +715,32 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
       case BMF_8BPP:           
       /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
       /* This is a reference implementation, it hasn't been optimized for speed */
+      
+      
                       
        for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
-       {                        
+       {
+                   BOOL UsesSource = ROP4_USES_SOURCE(mode);
+            BOOL UsesPattern = ROP4_USES_PATTERN(mode);
+            ULONG Dest;
+                                
             sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
                      
             for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
-            {                  
-                 sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;            
-                 color = DIB_8BPP_GetPixel(SourceSurf, sx, sy);
-                 DIB_16BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+            {  
+                       
+                                               
+                  sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;           
+                  color = DIB_8BPP_GetPixel(SourceSurf, sx, sy);
+                  Dest = DIB_16BPP_GetPixel(SourceSurf, DesX, DesY);
+                  color = DIB_DoRop(Mode, Dest, color, 0);
+                  
+                  //DIB_16BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+                                DIB_16BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
             }
        }
        break;
+       
 
       case BMF_24BPP:          
       /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */

diff --git a/reactos/subsys/win32k/dib/dib8bpp.c b/reactos/subsys/win32k/dib/dib8bpp.c
index b951a33..9feefb4 100644 (file)
--- a/reactos/subsys/win32k/dib/dib8bpp.c
+++ b/reactos/subsys/win32k/dib/dib8bpp.c
@@ -469,297 +469,60 @@ BOOLEAN DIB_8BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
    int DesX;
    int DesY;
    int color;
-   int zoomX;
-   int zoomY;
-   int count;
-   int saveX;
-   int saveY;
-   BOOLEAN DesIsBiggerY=FALSE;
 
   DPRINT("DIB_8BPP_StretchBlt: Source BPP: %u, srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
      BitsPerFormat(SourceSurf->iBitmapFormat), SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
      DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
 
-    
     SrcSizeY = SourceRect->bottom - SourceRect->top;
     SrcSizeX = SourceRect->right - SourceRect->left;
   
-    DesSizeY = DestRect->bottom ;
-    DesSizeX = DestRect->right;   
-        
-        
-   zoomX = DesSizeX / SrcSizeX;
-   if (zoomX==0) zoomX=1;
-
-   zoomY = DesSizeY / SrcSizeY;
-   if (zoomY==0) zoomY=1;
-
-   if (DesSizeY>SrcSizeY)
-      DesIsBiggerY = TRUE;
+    DesSizeY = DestRect->bottom - DestRect->top;
+    DesSizeX = DestRect->right - DestRect->left;
 
     switch(SourceSurf->iBitmapFormat)
     {     
-      case BMF_1BPP:           
-                  /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
-                  /* This is a reference implementation, it hasn't been optimized for speed */
-           if (zoomX>1)
-                  {
-                    /* Draw one Hline on X - Led to the Des Zoom In*/
-                    if (DesSizeX>SrcSizeX)
-                        {
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               saveX = DesX + zoomX;
-
-                                               if (DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0) 
-                                                  for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, 0);
-                                               else
-                                                       for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, 1);
-                                                                                                                                                                                               
-                                         }                                                                             
-                                 }
-                           }
-                        else
-                        {
-                          /* Draw one Hline on X - Led to the Des Zoom Out*/
-
-               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               saveX = DesX + zoomX;
-
-                                               if (DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0) 
-                                                  for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, 0);
-                                               else
-                                                       for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, 1);
-                                                                                                                                                                                               
-                                         }                                                                             
-                                 }
-                        }
-                  }                    
-                  else
-                  {
-                   
-                   if (DesSizeX>SrcSizeX)
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom In*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               if (DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0) 
-                                                  for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, 0);                                                                            
-                                               else
-                                                       for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, 1);                                                                            
-                                                           
-                                               
-                                        }
-                         }
-                        }
-                       else
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom Out*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               if (DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0) 
-                                                  for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, 0);                                                                            
-                                               else
-                                                       for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, 1);                                                                            
-                                                                                                       
-                                        }
-                         }
-                       }
-                  }
-               break;
+      case BMF_1BPP:
+         /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+      /* This is a reference implementation, it hasn't been optimized for speed */
+                      
+       for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+       {                        
+           sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+                     
+            for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+            {                  
+                  sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+                               
+                  if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
+                                 {
+                                       DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, 0));
+                  } 
+                                 else 
+                                 {
+                    DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, 1));
+                  }
+            }
+       }               
+
+         break;
 
       case BMF_4BPP:           
-                  /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
-                  /* This is a reference implementation, it hasn't been optimized for speed */
-           if (zoomX>1)
-                  {
-                    /* Draw one Hline on X - Led to the Des Zoom In*/
-                    if (DesSizeX>SrcSizeX)
-                        {
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                           }
-                        else
-                        {
-                          /* Draw one Hline on X - Led to the Des Zoom Out*/
-
-               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                        }
-                  }
-                       
-                  else
-                  {
-                   
-                   if (DesSizeX>SrcSizeX)
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom In*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                        }
-                       else
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom Out*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                       }
-                  }
-               break;
+      /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+      /* This is a reference implementation, it hasn't been optimized for speed */
+                      
+       for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+       {                        
+           sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+                     
+            for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+            {                  
+                 sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;            
+                 color = DIB_4BPP_GetPixel(SourceSurf, sx, sy);
+                 DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+            }
+       }                  
+      break;
 
       case BMF_8BPP:
         return ScaleRectAvg8(DestSurf, SourceSurf, DestRect, SourceRect, MaskOrigin, BrushOrigin,
@@ -767,376 +530,56 @@ BOOLEAN DIB_8BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
       break;
 
       case BMF_16BPP:          
-                  /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
-                  /* This is a reference implementation, it hasn't been optimized for speed */
-           if (zoomX>1)
-                  {
-                    /* Draw one Hline on X - Led to the Des Zoom In*/
-                    if (DesSizeX>SrcSizeX)
-                        {
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_16BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                           }
-                        else
-                        {
-                          /* Draw one Hline on X - Led to the Des Zoom Out*/
-
-               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_16BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                        }
-                  }
-                       
-                  else
-                  {
-                   
-                   if (DesSizeX>SrcSizeX)
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom In*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_16BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                        }
-                       else
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom Out*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_16BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                       }
-                  }
-               break;
-
-      case BMF_24BPP:          
-                  /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
-                  /* This is a reference implementation, it hasn't been optimized for speed */
-           if (zoomX>1)
-                  {
-                    /* Draw one Hline on X - Led to the Des Zoom In*/
-                    if (DesSizeX>SrcSizeX)
-                        {
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_24BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                           }
-                        else
-                        {
-                          /* Draw one Hline on X - Led to the Des Zoom Out*/
-
-               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_24BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                        }
-                  }
-                       
-                  else
-                  {
-                   
-                   if (DesSizeX>SrcSizeX)
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom In*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_24BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                        }
-                       else
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom Out*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_24BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                       }
-                  }
-               break;
-
-      case BMF_32BPP:          
-                  /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
-                  /* This is a reference implementation, it hasn't been optimized for speed */
-           if (zoomX>1)
-                  {
-                    /* Draw one Hline on X - Led to the Des Zoom In*/
-                    if (DesSizeX>SrcSizeX)
-                        {
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_32BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                           }
-                        else
-                        {
-                          /* Draw one Hline on X - Led to the Des Zoom Out*/
-
-               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_32BPP_GetPixel(SourceSurf, sx, sy));
-                                                                                               
-                                               saveX = DesX + zoomX;
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_HLine(DestSurf, DesX, saveX, count, color);
-                                         }                                                                             
-                                 }
-                        }
-                  }
-                       
-                  else
-                  {
-                   
-                   if (DesSizeX>SrcSizeX)
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom In*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {                                               
-                                               sx = (int) ((ULONG) SrcSizeX * (ULONG) DesX) / ((ULONG) DesSizeX);
-                                               
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_32BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                        }
-                       else
-                       {
-                               /* Draw one pixel on X - Led to the Des Zoom Out*/
-                               for (DesY=DestRect->bottom-zoomY; DesY>=DestRect->top; DesY-=zoomY)
-                               {
-                                       if (DesIsBiggerY)
-                                               sy = (int) ((ULONG) SrcSizeY * (ULONG) DesY) / ((ULONG) DesSizeY);
-                                       else
-                                               sy = (int) ((ULONG) DesSizeY * (ULONG) DesY) / ((ULONG) SrcSizeY); 
-                                               
-                                       if (sy > SourceRect->bottom) break;
-
-                                       saveY = DesY+zoomY;
-
-                                       for (DesX=DestRect->right-zoomX; DesX>=DestRect->left; DesX-=zoomX)                             
-                                       {
-                                               sx = (int) ((ULONG) DesSizeX * (ULONG) DesX) / ((ULONG) SrcSizeX);                                                                  
-                                       
-                                               if (sx > SourceRect->right) break;
-                                       
-                                               color =  XLATEOBJ_iXlate(ColorTranslation, DIB_32BPP_GetPixel(SourceSurf, sx, sy));
-                                                           
-                                               for (count=DesY;count<saveY;count++)
-                                                       DIB_8BPP_PutPixel(DestSurf, DesX, count, color);                                                                                
-                                        }
-                         }
-                       }
-                  }
-               break;
+      /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+      /* This is a reference implementation, it hasn't been optimized for speed */
+                      
+       for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+       {                        
+           sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+                     
+            for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+            {                  
+                 sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;            
+                 color = DIB_16BPP_GetPixel(SourceSurf, sx, sy);
+                 DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+            }
+       }                  
+         break;
+
+      case BMF_24BPP:
+      /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+      /* This is a reference implementation, it hasn't been optimized for speed */
+                      
+       for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+       {                        
+           sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+                     
+            for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+            {                  
+                 sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;            
+                 color = DIB_24BPP_GetPixel(SourceSurf, sx, sy);
+                 DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+            }
+       }                               
+         break;
+
+      case BMF_32BPP:
+      /* FIXME :  MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+      /* This is a reference implementation, it hasn't been optimized for speed */
+                      
+       for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+       {                        
+           sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+                     
+            for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+            {                  
+                 sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;            
+                 color = DIB_32BPP_GetPixel(SourceSurf, sx, sy);
+                 DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+            }
+       }                               
+         break;
+
 
 
       default: