| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkNoSaveLayerCanvas_DEFINED |
| #define SkNoSaveLayerCanvas_DEFINED |
| |
| #include "SkCanvas.h" |
| #include "SkRRect.h" |
| |
| // The NoSaveLayerCanvas is used to play back SkPictures when the saveLayer |
| // functionality isn't required (e.g., during analysis of the draw calls). |
| // It also simplifies the clipping calls to only use rectangles. |
| class SK_API SkNoSaveLayerCanvas : public SkCanvas { |
| public: |
| SkNoSaveLayerCanvas(SkBaseDevice* device) : INHERITED(device) {} |
| |
| protected: |
| virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint* paint, |
| SaveFlags flags) SK_OVERRIDE { |
| this->INHERITED::willSaveLayer(bounds, paint, flags); |
| return kNoLayer_SaveLayerStrategy; |
| } |
| |
| // disable aa for speed |
| virtual void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| this->INHERITED::onClipRect(rect, op, kHard_ClipEdgeStyle); |
| } |
| |
| // for speed, just respect the bounds, and disable AA. May give us a few |
| // false positives and negatives. |
| virtual void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| this->updateClipConservativelyUsingBounds(path.getBounds(), op, |
| path.isInverseFillType()); |
| } |
| virtual void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false); |
| } |
| |
| private: |
| typedef SkCanvas INHERITED; |
| }; |
| |
| #endif // SkNoSaveLayerCanvas_DEFINED |