Revert of Revert of Change device creation to see the (optional) layer-paint

src/utils/SkDeferredCanvas.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDeferredCanvas.h"
 
@@ skipping 144 matching lines @@
     void flushPendingCommands(PlaybackMode);
     void skipPendingCommands();
     void setMaxRecordingStorage(size_t);
     void recordedDrawCommand();
     void setIsDrawingToLayer(bool value) {fIsDrawingToLayer = value;}
 
     SkImageInfo imageInfo() const SK_OVERRIDE;
 
     GrRenderTarget* accessRenderTarget() SK_OVERRIDE;
 
-    SkBaseDevice* onCreateCompatibleDevice(const CreateInfo&) SK_OVERRIDE;
+    SkBaseDevice* onCreateDevice(const CreateInfo&, const SkPaint*) SK_OVERRIDE;
 
     SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps&) SK_OVERRIDE;
 
 protected:
     const SkBitmap& onAccessBitmap() SK_OVERRIDE;
     bool onReadPixels(const SkImageInfo&, void*, size_t, int x, int y) SK_OVERRIDE;
     bool onWritePixels(const SkImageInfo&, const void*, size_t, int x, int y) SK_OVERRIDE;
 
     // None of the following drawing methods should ever get called on the
     // deferred device
@@ skipping 48 matching lines @@
                            const SkPoint texCoords[4], SkXfermode* xmode,
                            const SkPaint& paint) SK_OVERRIDE
         {SkASSERT(0);}
     virtual void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
                             const SkPaint&) SK_OVERRIDE
         {SkASSERT(0);}
 
     void lockPixels() SK_OVERRIDE {}
     void unlockPixels() SK_OVERRIDE {}
 
-    bool allowImageFilter(const SkImageFilter*) SK_OVERRIDE {
-        return false;
-    }
     bool canHandleImageFilter(const SkImageFilter*) SK_OVERRIDE {
         return false;
     }
     virtual bool filterImage(const SkImageFilter*, const SkBitmap&,
                              const SkImageFilter::Context&, SkBitmap*, SkIPoint*) SK_OVERRIDE {
         return false;
     }
 
 private:
     void flush() SK_OVERRIDE;
@@ skipping 207 matching lines @@
 
     this->prepareForImmediatePixelWrite();
     return immediateDevice()->onWritePixels(info, pixels, rowBytes, x, y);
 }
 
 const SkBitmap& SkDeferredDevice::onAccessBitmap() {
     this->flushPendingCommands(kNormal_PlaybackMode);
     return immediateDevice()->accessBitmap(false);
 }
 
-SkBaseDevice* SkDeferredDevice::onCreateCompatibleDevice(const CreateInfo& cinfo) {
-    // Save layer usage not supported, and not required by SkDeferredCanvas.
-    SkASSERT(cinfo.fUsage != kSaveLayer_Usage);
-
+SkBaseDevice* SkDeferredDevice::onCreateDevice(const CreateInfo& cinfo, const SkPaint* layerPaint) {
     // Create a compatible non-deferred device.
     // We do not create a deferred device because we know the new device
     // will not be used with a deferred canvas (there is no API for that).
     // And connecting a SkDeferredDevice to non-deferred canvas can result
     // in unpredictable behavior.
-    return immediateDevice()->onCreateCompatibleDevice(cinfo);
+    return immediateDevice()->onCreateDevice(cinfo, layerPaint);
 }
 
 SkSurface* SkDeferredDevice::newSurface(const SkImageInfo& info, const SkSurfaceProps& props) {
     return this->immediateDevice()->newSurface(info, props);
 }
 
 bool SkDeferredDevice::onReadPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
                                     int x, int y) {
     this->flushPendingCommands(kNormal_PlaybackMode);
     return fImmediateCanvas->readPixels(info, pixels, rowBytes, x, y);
@@ skipping 450 matching lines @@
 SkDrawFilter* SkDeferredCanvas::setDrawFilter(SkDrawFilter* filter) {
     this->drawingCanvas()->setDrawFilter(filter);
     this->INHERITED::setDrawFilter(filter);
     this->recordedDrawCommand();
     return filter;
 }
 
 SkCanvas* SkDeferredCanvas::canvasForDrawIter() {
     return this->drawingCanvas();
 }