bitblt srcpy optimze it can be more optimze

svn path=/trunk/; revision=15750

diff --git a/reactos/subsys/win32k/dib/dib32bpp.c b/reactos/subsys/win32k/dib/dib32bpp.c
index d191abf..a3f8444 100644 (file)
--- a/reactos/subsys/win32k/dib/dib32bpp.c
+++ b/reactos/subsys/win32k/dib/dib32bpp.c
@@ -308,6 +308,7 @@ DIB_32BPP_BitBlt(PBLTINFO BltInfo)
 
    switch (BltInfo->Rop4)
        {
+
                 case  ROP4_BLACKNESS:  
                         //return(0x00000000);  
 
@@ -376,17 +377,39 @@ DIB_32BPP_BitBlt(PBLTINFO BltInfo)
 #endif
                 return TRUE;
                 break;
+
                case  ROP4_SRCCOPY:     
                         // return(Source);
                          switch (BltInfo->SourceSurface->iBitmapFormat)
                          {                        
                            case BMF_1BPP:
-                               break;
-                               case BMF_4BPP:
-                               break;                                                          
+                               case BMF_4BPP:                                          
                                case BMF_16BPP:
-                               break;
                                case BMF_24BPP:
+                               {
+                                       PBYTE byteaddr = BltInfo->SourceSurface->pvScan0 + BltInfo->DestRect.top * BltInfo->SourceSurface->lDelta;
+                    PDWORD addr = (PDWORD)byteaddr + BltInfo->DestRect.left;
+                                       LONG  xlDelta =  BltInfo->SourceSurface->lDelta - (BltInfo->DestRect.right - BltInfo->DestRect.left) ;
+
+                                        SourceY = BltInfo->SourcePoint.y;                                       
+                                                                                
+                                        for (DestY=BltInfo->DestRect.top; DestY<BltInfo->DestRect.bottom; DestY++)
+                                {  
+                                                                                
+                                     if (SourceY > BltInfo->SourceSurface->sizlBitmap.cy) break;
+                         
+                                         SourceX = BltInfo->SourcePoint.x;
+
+                                     for (DestX=BltInfo->DestRect.left; DestX<BltInfo->DestRect.right; DestX++, SourceX++, addr++)                             
+                                         {                                                                                                                                                                                                                                             
+                                                  if (SourceX > BltInfo->SourceSurface->sizlBitmap.cx) break;                                                                                                          
+                                                                                                                                         
+                                                               *addr = DIB_GetSource(BltInfo->SourceSurface,  SourceX, 
+                                                                                                     SourceY, BltInfo->XlateSourceToDest);                                                                             
+                                                       }                                               
+                                         } 
+                                        addr+=xlDelta;
+                               }
                                break;
                                case BMF_32BPP:
                                {