--- qt-everywhere-opensource-src-4.6.3/src/gui/painting/qblendfunctions.cpp	2010-06-02 04:03:15.000000000 +0200
+++ qt-fixed/src/gui/painting/qblendfunctions.cpp	2010-09-07 00:08:30.758452999 +0200
@@ -225,7 +225,7 @@
 
 
     quint32 basex;
-    quint32 srcy;
+    quint64 srcy;
 
     if (sx < 0) {
         int dstx = qFloor((tx1 + qreal(0.5) - targetRect.right()) * ix) + 1;
@@ -246,7 +246,7 @@
 
     while (h--) {
         const SRC *src = (const SRC *) (srcPixels + (srcy >> 16) * sbpl);
-        int srcx = basex;
+        quint64 srcx = basex;
         for (int x=0; x<w; ++x) {
             blender.write(&dst[x], src[srcx >> 16]);
             srcx += ix;
@@ -737,7 +737,7 @@
     int w = tx2 - tx1;
 
     quint32 basex;
-    quint32 srcy;
+    quint64 srcy;
 
     if (sx < 0) {
         int dstx = qFloor((tx1 + qreal(0.5) - targetRect.right()) * ix) + 1;
@@ -758,7 +758,7 @@
 
     while (h--) {
         const uint *src = (const quint32 *) (srcPixels + (srcy >> 16) * sbpl);
-        int srcx = basex;
+        quint64 srcx = basex;
         for (int x=0; x<w; ++x) {
             blender.write(&dst[x], src[srcx >> 16]);
             srcx += ix;