deferred canvas

dm/DMSrcSink.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "DMSrcSink.h"
 #include "Resources.h"
 #include "SkAndroidCodec.h"
 #include "SkCodec.h"
 #include "SkCodecImageGenerator.h"
 #include "SkColorSpace.h"
 #include "SkColorSpace_Base.h"
 #include "SkColorSpaceXform.h"
 #include "SkCommonFlags.h"
 #include "SkData.h"
+#include "SkDeferredCanvas.h"
 #include "SkDocument.h"
 #include "SkError.h"
 #include "SkImageGenerator.h"
 #include "SkImageGeneratorCG.h"
 #include "SkImageGeneratorWIC.h"
 #include "SkMallocPixelRef.h"
 #include "SkMultiPictureDraw.h"
 #include "SkNullCanvas.h"
 #include "SkOSFile.h"
 #include "SkOpts.h"
@@ skipping 1404 matching lines @@
             return err;
         }
         pic = recorder.finishRecordingAsPicture();
         canvas->drawPicture(pic);
         return check_against_reference(bitmap, src, fSink);
     });
 }
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
+Error ViaDefer::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkString* log) const {
+    auto size = src.size();
+    return draw_to_canvas(fSink, bitmap, stream, log, size, [&](SkCanvas* canvas) -> Error {
+        SkDeferredCanvas deferred(canvas);
+        return src.draw(&deferred);
+    });
+}
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
 // Draw the Src into two pictures, then draw the second picture into the wrapped Sink.
 // This tests that any shortcuts we may take while recording that second picture are legal.
 Error ViaSecondPicture::draw(
         const Src& src, SkBitmap* bitmap, SkWStream* stream, SkString* log) const {
     auto size = src.size();
     return draw_to_canvas(fSink, bitmap, stream, log, size, [&](SkCanvas* canvas) -> Error {
         SkPictureRecorder recorder;
         sk_sp<SkPicture> pic;
         for (int i = 0; i < 2; i++) {
             Error err = src.draw(recorder.beginRecording(SkIntToScalar(size.width()),
@@ skipping 91 matching lines @@
             skr.visit(i, drawsAsSingletonPictures);
         }
         sk_sp<SkPicture> macroPic(macroRec.finishRecordingAsPicture());
 
         canvas->drawPicture(macroPic);
         return check_against_reference(bitmap, src, fSink);
     });
 }
 
 }  // namespace DM