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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrClip_DEFINED | 8 #ifndef GrClip_DEFINED |
9 #define GrClip_DEFINED | 9 #define GrClip_DEFINED |
10 | 10 |
11 #include "GrFragmentProcessor.h" | 11 #include "GrFragmentProcessor.h" |
12 #include "GrTypesPriv.h" | 12 #include "GrTypesPriv.h" |
13 #include "SkClipStack.h" | 13 #include "SkClipStack.h" |
14 | 14 |
15 class GrDrawContext; | 15 class GrDrawContext; |
16 class GrPipelineBuilder; | 16 class GrPipelineBuilder; |
17 | 17 |
18 /** | 18 /** |
19 * Produced by GrClip. It provides a set of modifications to the drawing state t
hat are used to | 19 * Produced by GrClip. It provides a set of modifications to the drawing state t
hat are used to |
20 * create the final GrPipeline for a GrBatch. | 20 * create the final GrPipeline for a GrBatch. |
21 */ | 21 */ |
22 class GrAppliedClip : public SkNoncopyable { | 22 class GrAppliedClip : public SkNoncopyable { |
23 public: | 23 public: |
24 GrAppliedClip() : fHasStencilClip(false) {} | 24 GrAppliedClip() : fHasStencilClip(false) {} |
25 const GrFragmentProcessor* clipCoverageFragmentProcessor() const { | 25 GrFragmentProcessor* getClipCoverageFragmentProcessor() const { |
26 return fClipCoverageFP.get(); | 26 return fClipCoverageFP.get(); |
27 } | 27 } |
28 const GrScissorState& scissorState() const { return fScissorState; } | 28 const GrScissorState& scissorState() const { return fScissorState; } |
29 bool hasStencilClip() const { return fHasStencilClip; } | 29 bool hasStencilClip() const { return fHasStencilClip; } |
30 | 30 |
31 void makeStencil(bool hasStencil) { | 31 void makeStencil(bool hasStencil) { |
32 fClipCoverageFP = nullptr; | 32 fClipCoverageFP = nullptr; |
33 fScissorState.setDisabled(); | 33 fScissorState.setDisabled(); |
34 fHasStencilClip = hasStencil; | 34 fHasStencilClip = hasStencil; |
35 } | 35 } |
36 | 36 |
37 void makeScissoredStencil(bool hasStencil, const SkIRect& scissor) { | 37 void makeScissoredStencil(bool hasStencil, const SkIRect& scissor) { |
38 fClipCoverageFP = nullptr; | 38 fClipCoverageFP = nullptr; |
39 fScissorState.set(scissor); | 39 fScissorState.set(scissor); |
40 fHasStencilClip = hasStencil; | 40 fHasStencilClip = hasStencil; |
41 } | 41 } |
42 | 42 |
43 void makeFPBased(sk_sp<const GrFragmentProcessor> fp) { | 43 void makeFPBased(sk_sp<GrFragmentProcessor> fp) { |
44 fClipCoverageFP = fp; | 44 fClipCoverageFP = fp; |
45 fScissorState.setDisabled(); | 45 fScissorState.setDisabled(); |
46 fHasStencilClip = false; | 46 fHasStencilClip = false; |
47 } | 47 } |
48 | 48 |
49 void makeScissoredFPBased(sk_sp<const GrFragmentProcessor> fp, SkIRect& scis
sor) { | 49 void makeScissoredFPBased(sk_sp<GrFragmentProcessor> fp, SkIRect& scissor) { |
50 fClipCoverageFP = fp; | 50 fClipCoverageFP = fp; |
51 fScissorState.set(scissor); | 51 fScissorState.set(scissor); |
52 fHasStencilClip = false; | 52 fHasStencilClip = false; |
53 } | 53 } |
54 | 54 |
55 private: | 55 private: |
56 sk_sp<const GrFragmentProcessor> fClipCoverageFP; | 56 sk_sp<GrFragmentProcessor> fClipCoverageFP; |
57 GrScissorState fScissorState; | 57 GrScissorState fScissorState; |
58 bool fHasStencilClip; | 58 bool fHasStencilClip; |
59 | 59 |
60 typedef SkNoncopyable INHERITED; | 60 typedef SkNoncopyable INHERITED; |
61 }; | 61 }; |
62 | 62 |
63 /** | 63 /** |
64 * GrClip is an abstract base class for applying a clip. It constructs a clip ma
sk if necessary, and | 64 * GrClip is an abstract base class for applying a clip. It constructs a clip ma
sk if necessary, and |
65 * fills out a GrAppliedClip instructing the caller on how to set up the draw st
ate. | 65 * fills out a GrAppliedClip instructing the caller on how to set up the draw st
ate. |
66 */ | 66 */ |
67 class GrClip { | 67 class GrClip { |
68 public: | 68 public: |
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146 bool* isIntersectionOfRects) const final; | 146 bool* isIntersectionOfRects) const final; |
147 bool apply(GrContext*, const GrPipelineBuilder&, GrDrawContext*, | 147 bool apply(GrContext*, const GrPipelineBuilder&, GrDrawContext*, |
148 const SkRect* devBounds, GrAppliedClip*) const final; | 148 const SkRect* devBounds, GrAppliedClip*) const final; |
149 | 149 |
150 private: | 150 private: |
151 SkIPoint fOrigin; | 151 SkIPoint fOrigin; |
152 SkAutoTUnref<const SkClipStack> fStack; | 152 SkAutoTUnref<const SkClipStack> fStack; |
153 }; | 153 }; |
154 | 154 |
155 #endif | 155 #endif |
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