OLD | NEW |
(Empty) | |
| 1 /* |
| 2 * Copyright 2014 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef SkNoSaveLayerCanvas_DEFINED |
| 9 #define SkNoSaveLayerCanvas_DEFINED |
| 10 |
| 11 #include "SkCanvas.h" |
| 12 #include "SkRRect.h" |
| 13 |
| 14 // The NoSaveLayerCanvas is used to play back SkPictures when the saveLayer |
| 15 // functionality isn't required (e.g., during analysis of the draw calls). |
| 16 // It also simplifies the clipping calls to only use rectangles. |
| 17 class SK_API SkNoSaveLayerCanvas : public SkCanvas { |
| 18 public: |
| 19 SkNoSaveLayerCanvas(SkBaseDevice* device) : INHERITED(device) {} |
| 20 |
| 21 protected: |
| 22 virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint*
paint, |
| 23 SaveFlags flags) SK_OVERRIDE { |
| 24 this->INHERITED::willSaveLayer(bounds, paint, flags); |
| 25 return kNoLayer_SaveLayerStrategy; |
| 26 } |
| 27 |
| 28 // disable aa for speed |
| 29 virtual void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle)
SK_OVERRIDE { |
| 30 this->INHERITED::onClipRect(rect, op, kHard_ClipEdgeStyle); |
| 31 } |
| 32 |
| 33 // for speed, just respect the bounds, and disable AA. May give us a few |
| 34 // false positives and negatives. |
| 35 virtual void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle)
SK_OVERRIDE { |
| 36 this->updateClipConservativelyUsingBounds(path.getBounds(), op, |
| 37 path.isInverseFillType()); |
| 38 } |
| 39 virtual void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyl
e) SK_OVERRIDE { |
| 40 this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false); |
| 41 } |
| 42 |
| 43 private: |
| 44 typedef SkCanvas INHERITED; |
| 45 }; |
| 46 |
| 47 #endif // SkNoSaveLayerCanvas_DEFINED |
OLD | NEW |