fix swapped bitmap channels on Mac for debugger

debugger/QT/SkRasterWidget.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-
 #include "SkRasterWidget.h"
 
 SkRasterWidget::SkRasterWidget(SkDebugger *debugger) : QWidget() {
     fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 800, 800);
     fBitmap.allocPixels();
     fBitmap.eraseColor(SK_ColorTRANSPARENT);
     fDevice = new SkDevice(fBitmap);
     fDebugger = debugger;
     fCanvas = new SkCanvas(fDevice);
     this->setStyleSheet("QWidget {background-color: white; border: 1px solid #cccccc;}");
@@ skipping 22 matching lines @@
         QPainter painter(this);
         QStyleOption opt;
         opt.init(this);
 
         style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
 
         QPoint origin(0,0);
         QImage image((uchar *)fBitmap.getPixels(), fBitmap.width(),
                 fBitmap.height(), QImage::Format_ARGB32_Premultiplied);
 
+#if SK_R32_SHIFT == 0
+        painter.drawImage(origin, image.rgbSwapped());
+#else
         painter.drawImage(origin, image);
+#endif
         painter.end();
         emit drawComplete();
     }
 }