refactor DM::SetupBitmap

dm/DMQuiltTask.cpp

 #include "DMQuiltTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
 #include "SkCommandLineFlags.h"
 #include "SkPicture.h"
 
 DEFINE_bool(quilt, true, "If true, draw into a quilt of small tiles and compare.");
 DEFINE_int32(quiltTile, 16, "Dimension of (square) quilt tile.");
 
 namespace DM {
 
 QuiltTask::QuiltTask(const Task& parent, skiagm::GM* gm, SkBitmap reference)
     : CpuTask(parent)
     , fName(UnderJoin(parent.name().c_str(), "quilt"))
     , fGM(gm)
     , fReference(reference)
     {}
 
 static int tiles_needed(int fullDimension, int tileDimension) {
     return (fullDimension + tileDimension - 1) / tileDimension;
 }
 
 void QuiltTask::draw() {
     SkAutoTUnref<SkPicture> recorded(RecordPicture(fGM.get()));
 
     SkBitmap full;
-    SetupBitmap(fReference.colorType(), fGM.get(), &full);
+    AllocatePixels(fReference, &full);
     SkCanvas fullCanvas(full);
 
     SkBitmap tile;
     tile.allocPixels(SkImageInfo::Make(FLAGS_quiltTile, FLAGS_quiltTile,
                                        fReference.colorType(), kPremul_SkAlphaType));
     SkCanvas tileCanvas(tile);
 
     for (int y = 0; y < tiles_needed(full.height(), tile.height()); y++) {
         for (int x = 0; x < tiles_needed(full.width(), tile.width()); x++) {
             SkAutoCanvasRestore ar(&tileCanvas, true/*also save now*/);
@@ skipping 20 matching lines @@
     if (fGM->getFlags() & skiagm::GM::kSkipPicture_Flag) {
         return true;
     }
     if (fGM->getFlags() & skiagm::GM::kSkipTiled_Flag) {
         return true;
     }
     return !FLAGS_quilt;
 }
 
 }  // namespace DM