diff --git a/dm/DMQuiltTask.cpp b/dm/DMQuiltTask.cpp
new file mode 100644
index 0000000..e8f8b60
--- /dev/null
+++ b/dm/DMQuiltTask.cpp
@@ -0,0 +1,68 @@
+#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);
+    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*/);
+
+            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, NULL);
+        }
+    }
+
+    if (!BitmapsEqual(full, fReference)) {
+        this->fail();
+        this->spawnChild(SkNEW_ARGS(WriteTask, (*this, full)));
+    }
+}
+
+bool QuiltTask::shouldSkip() const {
+    if (fGM->getFlags() & skiagm::GM::kSkipPicture_Flag) {
+        return true;
+    }
+    if (fGM->getFlags() & skiagm::GM::kSkipTiled_Flag) {
+        return true;
+    }
+    return !FLAGS_quilt;
+}
+
+}  // namespace DM