Turn on quilt mode in DM.

dm/DMTileGridTask.cpp

-#include "DMTileGridTask.h"
-#include "DMWriteTask.h"
-#include "DMUtil.h"
-
-#include "SkBBHFactory.h"
-#include "SkCommandLineFlags.h"
-#include "SkPicture.h"
-
-// TODO(mtklein): Tile grid tests are currently failing.  (Skia issue 1198).  When fixed, -> true.
-DEFINE_bool(tileGrid, false, "If true, run picture replay tests with a tile grid.");
-
-namespace DM {
-
-TileGridTask::TileGridTask(const Task& parent, skiagm::GM* gm, SkBitmap reference, SkISize tileSize)
-    : CpuTask(parent)
-    , fName(UnderJoin(parent.name().c_str(), "tilegrid"))
-    , fGM(gm)
-    , fReference(reference)
-    , fTileSize(tileSize)
-    {}
-
-static int tiles_needed(int fullDimension, int tileDimension) {
-    return (fullDimension + tileDimension - 1) / tileDimension;
-}
-
-void TileGridTask::draw() {
-    const SkTileGridFactory::TileGridInfo info = {
-        fTileSize,
-        SkISize::Make(0,0),    // Overlap between adjacent tiles.
-        SkIPoint::Make(0,0),   // Offset.
-    };
-    SkTileGridFactory factory(info);
-    SkAutoTUnref<SkPicture> recorded(RecordPicture(fGM.get(),
-                                                   SkPicture::kUsePathBoundsForClip_RecordingFlag,
-                                                   &factory));
-
-    SkBitmap full;
-    SetupBitmap(fReference.colorType(), fGM.get(), &full);
-    SkCanvas fullCanvas(full);
-
-    SkBitmap tile;
-    tile.allocPixels(SkImageInfo::Make(fTileSize.width(), fTileSize.height(),
-                                       fReference.colorType(), kPremul_SkAlphaType));
-    SkCanvas tileCanvas(tile);
-
-    SkPaint paint;
-    paint.setXfermodeMode(SkXfermode::kSrc_Mode);
-
-    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*/);
-
-            const SkScalar xOffset = SkIntToScalar(x * tile.width()),
-                           yOffset = SkIntToScalar(y * tile.height());
-            SkMatrix matrix = tileCanvas.getTotalMatrix();
-            matrix.postTranslate(-xOffset, -yOffset);
-            tileCanvas.setMatrix(matrix);
-
-            recorded->draw(&tileCanvas);
-            tileCanvas.flush();
-            fullCanvas.drawBitmap(tile, xOffset, yOffset, &paint);
-        }
-    }
-
-    if (!BitmapsEqual(full, fReference)) {
-        this->fail();
-        this->spawnChild(SkNEW_ARGS(WriteTask, (*this, full)));
-    }
-}
-
-bool TileGridTask::shouldSkip() const {
-    if (fGM->getFlags() & skiagm::GM::kSkipPicture_Flag) {
-        return true;
-    }
-    if (fGM->getFlags() & skiagm::GM::kSkipTiled_Flag) {
-        return true;
-    }
-    return !FLAGS_tileGrid;
-}
-
-}  // namespace DM