Blending now uses the Upper left to place the source image

gfx/src/makefile.win

@@ -27,7 +27,7 @@ REQUIRES=util img xpcom raptor netlib
 DEFINES=-D_IMPL_NS_GFX -DWIN32_LEAN_AND_MEAN
 
 CPPSRCS=nsColor.cpp nsColorNames.cpp nsColorNamesRGB.cpp nsFont.cpp \
-    nsImageGroup.cpp nsImageManager.cpp nsImageNetContextAsync.cpp \
+    nsImageGroup.cpp nsImageManager.cpp nsImageNetContext.cpp \
     nsImageRenderer.cpp nsImageRequest.cpp nsImageSystemServices.cpp \
     nsImageURL.cpp nsRect.cpp nsTransform2D.cpp nsFontCache.cpp 
 
@@ -40,7 +40,7 @@ EXPORTS=nsColor.h nsColorNames.h nsCoord.h nsFont.h nsRect.h nsPoint.h \
 CPP_OBJS=.\$(OBJDIR)\nsColor.obj .\$(OBJDIR)\nsColorNames.obj \
     .\$(OBJDIR)\nsColorNamesRGB.obj .\$(OBJDIR)\nsFont.obj \
     .\$(OBJDIR)\nsImageGroup.obj .\$(OBJDIR)\nsImageManager.obj \
-    .\$(OBJDIR)\nsImageNetContextAsync.obj .\$(OBJDIR)\nsImageRenderer.obj \
+    .\$(OBJDIR)\nsImageNetContext.obj .\$(OBJDIR)\nsImageRenderer.obj \
     .\$(OBJDIR)\nsImageRequest.obj .\$(OBJDIR)\nsImageSystemServices.obj \
     .\$(OBJDIR)\nsImageURL.obj .\$(OBJDIR)\nsRect.obj \
     .\$(OBJDIR)\nsTransform2D.obj .\$(OBJDIR)\nsFontCache.obj 

gfx/src/windows/nsBlenderWin.cpp

@@ -136,8 +136,8 @@ nsColorMap          *colormap;
   srcloc.y = aSY;
   mSrcInfo.bmBits = mSrcBytes;
   mDstInfo.bmBits = mDstBytes;
-  maskloc.x = aSX;
-  maskloc.y = aSY;
+  maskloc.x = 0;
+  maskloc.y = 0;
   if(CalcAlphaMetrics(&mSrcInfo,&mDstInfo,&srcloc,NULL,&maskloc,aWidth,aHeight,&numlines,&numbytes,
                 &s1,&d1,&m1,&slinespan,&dlinespan,&mlinespan))
     {
@@ -268,12 +268,11 @@ PRInt32   startx,starty;
     }
   else
     {
-    arect.SetRect(0,0,aDestInfo->bmWidth,aDestInfo->bmHeight);
-    srect.SetRect(aMaskUL->x,aMaskUL->y,aWidth,aHeight);
-    arect.IntersectRect(arect,srect);
-
     //arect.SetRect(0,0,aDestInfo->bmWidth,aDestInfo->bmHeight);
-    //x = y = 0;
+    //srect.SetRect(aMaskUL->x,aMaskUL->y,aWidth,aHeight);
+    //arect.IntersectRect(arect,srect);
+
+    arect.SetRect(0, 0,aDestInfo->bmWidth, aDestInfo->bmHeight);
     }
 
   srect.SetRect(aSrcUL->x, aSrcUL->y, aSrcInfo->bmWidth, aSrcInfo->bmHeight);
@@ -287,7 +286,7 @@ PRInt32   startx,starty;
     *aNumlines = irect.height;
     startx = irect.x;
     starty = aDestInfo->bmHeight - (irect.y + irect.height);
-    *aDImage = ((PRUint8*)aDestInfo->bmBits) + (starty * (*aDLSpan)) + (aDestInfo->bmBitsPixel * startx);
+    *aDImage = ((PRUint8*)aDestInfo->bmBits) + (starty * (*aDLSpan)) + ((aDestInfo->bmBitsPixel/8) * startx);
 
     // get the intersection relative to the source rectangle
     srect.SetRect(0, 0, aSrcInfo->bmWidth, aSrcInfo->bmHeight);
@@ -298,7 +297,7 @@ PRInt32   startx,starty;
     *aSLSpan = aSrcInfo->bmWidthBytes;
     startx = drect.x;
     starty = aSrcInfo->bmHeight - (drect.y + drect.height);
-    *aSImage = ((PRUint8*)aSrcInfo->bmBits) + (starty * (*aSLSpan)) + (aDestInfo->bmBitsPixel * startx);
+    *aSImage = ((PRUint8*)aSrcInfo->bmBits) + (starty * (*aSLSpan)) + ((aDestInfo->bmBitsPixel/8) * startx);
          
     doalpha = PR_TRUE;
 

gfx/src/windows/nsImageWin.cpp

@@ -342,7 +342,7 @@ PRBool nsImageWin::CalcAlphaMetrics(nsIImage *aTheImage,nsPoint *aULLocation,PRI
 {
 PRBool    doalpha = PR_FALSE;
 nsRect    arect,srect,drect,irect;
-PRInt32   startx,starty,x,y;
+PRInt32   startx,starty;
 PRUint8   *alphabits;
 
   if( IsOptimized() )
@@ -358,7 +358,6 @@ PRUint8   *alphabits;
   else
     {
     arect.SetRect(0, 0, this->GetWidth(), this->GetHeight());
-    x = y = 0;
     }
 
   srect.SetRect(aULLocation->x, aULLocation->y, aTheImage->GetWidth(), aTheImage->GetHeight());