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| 1 /* |
| 2 * Copyright 2016 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 GrFixedClip_DEFINED |
| 9 #define GrFixedClip_DEFINED |
| 10 |
| 11 #include "GrClip.h" |
| 12 #include "GrTypesPriv.h" |
| 13 |
| 14 /** |
| 15 * GrFixedClip is a clip that can be represented by fixed-function hardware. It
never modifies the |
| 16 * stencil buffer itself, but can be configured to use whatever clip is already
there. |
| 17 */ |
| 18 class GrFixedClip final : public GrClip { |
| 19 public: |
| 20 GrFixedClip() : fHasStencilClip(false) {} |
| 21 GrFixedClip(const SkIRect& scissorRect) |
| 22 : fScissorState(scissorRect) |
| 23 , fHasStencilClip(false) {} |
| 24 |
| 25 void reset() { |
| 26 fScissorState.setDisabled(); |
| 27 fHasStencilClip = false; |
| 28 } |
| 29 |
| 30 void reset(const SkIRect& scissorRect) { |
| 31 fScissorState.set(scissorRect); |
| 32 fHasStencilClip = false; |
| 33 } |
| 34 |
| 35 void enableStencilClip() { fHasStencilClip = true; } |
| 36 void disableStencilClip() { fHasStencilClip = false; } |
| 37 |
| 38 bool quickContains(const SkRect&) const final; |
| 39 void getConservativeBounds(int width, int height, SkIRect* devResult, |
| 40 bool* isIntersectionOfRects) const final; |
| 41 |
| 42 private: |
| 43 bool apply(GrContext*, GrDrawContext*, bool useHWAA, bool hasUserStencilSett
ings, |
| 44 GrAppliedClip* out) const final; |
| 45 |
| 46 GrScissorState fScissorState; |
| 47 bool fHasStencilClip; |
| 48 }; |
| 49 |
| 50 #endif |
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