robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 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. |
robertphillips@google.com | 0f03f43 | 2014-03-16 21:59:11 +0000 | [diff] [blame] | 17 | class SK_API SkNoSaveLayerCanvas : public SkCanvas { |
robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 18 | public: |
| 19 | SkNoSaveLayerCanvas(SkBaseDevice* device) : INHERITED(device) {} |
| 20 | |
commit-bot@chromium.org | e54a23f | 2014-03-12 20:21:48 +0000 | [diff] [blame] | 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; |
robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 26 | } |
| 27 | |
| 28 | // disable aa for speed |
robertphillips@google.com | 8f90a89 | 2014-02-28 18:19:39 +0000 | [diff] [blame] | 29 | virtual void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| 30 | this->INHERITED::onClipRect(rect, op, kHard_ClipEdgeStyle); |
robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | // for speed, just respect the bounds, and disable AA. May give us a few |
| 34 | // false positives and negatives. |
robertphillips@google.com | 8f90a89 | 2014-02-28 18:19:39 +0000 | [diff] [blame] | 35 | virtual void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| 36 | this->updateClipConservativelyUsingBounds(path.getBounds(), op, |
| 37 | path.isInverseFillType()); |
robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 38 | } |
robertphillips@google.com | 8f90a89 | 2014-02-28 18:19:39 +0000 | [diff] [blame] | 39 | virtual void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE { |
| 40 | this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false); |
robertphillips@google.com | 81e8739 | 2014-01-07 16:08:04 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | private: |
| 44 | typedef SkCanvas INHERITED; |
| 45 | }; |
| 46 | |
| 47 | #endif // SkNoSaveLayerCanvas_DEFINED |