Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 SkClipStackDevice_DEFINED |
| 9 | #define SkClipStackDevice_DEFINED |
| 10 | |
| 11 | #include "SkClipStack.h" |
| 12 | #include "SkDevice.h" |
| 13 | |
| 14 | class SK_API SkClipStackDevice : public SkBaseDevice { |
| 15 | public: |
| 16 | SkClipStackDevice(const SkImageInfo& info, const SkSurfaceProps& props) |
| 17 | : SkBaseDevice(info, props) |
Mike Reed | d37f22b | 2017-03-09 23:56:25 -0500 | [diff] [blame] | 18 | , fClipStack(fStorage, sizeof(fStorage)) |
Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 19 | {} |
| 20 | |
Mike Reed | f880b68 | 2017-03-10 11:30:44 -0500 | [diff] [blame] | 21 | SkClipStack& cs() { return fClipStack; } |
Brian Salomon | 0166cfd | 2017-03-13 17:58:25 -0400 | [diff] [blame] | 22 | const SkClipStack& cs() const { return fClipStack; } |
Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 23 | |
Mike Reed | a136136 | 2017-03-07 09:37:29 -0500 | [diff] [blame] | 24 | SkIRect devClipBounds() const; |
Mike Reed | fa24d34 | 2017-02-22 15:21:35 -0500 | [diff] [blame] | 25 | |
Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 26 | protected: |
| 27 | void onSave() override; |
| 28 | void onRestore() override; |
| 29 | void onClipRect(const SkRect& rect, SkClipOp, bool aa) override; |
| 30 | void onClipRRect(const SkRRect& rrect, SkClipOp, bool aa) override; |
| 31 | void onClipPath(const SkPath& path, SkClipOp, bool aa) override; |
| 32 | void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override; |
| 33 | void onSetDeviceClipRestriction(SkIRect* mutableClipRestriction) override; |
Mike Reed | a136136 | 2017-03-07 09:37:29 -0500 | [diff] [blame] | 34 | bool onClipIsAA() const override; |
| 35 | void onAsRgnClip(SkRegion*) const override; |
| 36 | ClipType onGetClipType() const override; |
Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 37 | |
| 38 | private: |
Mike Reed | d37f22b | 2017-03-09 23:56:25 -0500 | [diff] [blame] | 39 | enum { |
| 40 | kPreallocCount = 16 // empirically determined, adjust as needed to reduce mallocs |
| 41 | }; |
| 42 | intptr_t fStorage[kPreallocCount * sizeof(SkClipStack::Element) / sizeof(intptr_t)]; |
Mike Reed | c5e641c | 2017-02-17 14:38:11 -0500 | [diff] [blame] | 43 | SkClipStack fClipStack; |
| 44 | |
| 45 | typedef SkBaseDevice INHERITED; |
| 46 | }; |
| 47 | |
| 48 | #endif |