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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 GrClipMaskManager; | 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 const GrFragmentProcessor* clipCoverageFragmentProcessor() const { |
| (...skipping 36 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 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: |
| 69 virtual bool quickContains(const SkRect&) const = 0; | 69 virtual bool quickContains(const SkRect&) const = 0; |
| 70 virtual void getConservativeBounds(int width, int height, SkIRect* devResult
, | 70 virtual void getConservativeBounds(int width, int height, SkIRect* devResult
, |
| 71 bool* isIntersectionOfRects = nullptr) co
nst = 0; | 71 bool* isIntersectionOfRects = nullptr) co
nst = 0; |
| 72 virtual bool apply(GrClipMaskManager*, const GrPipelineBuilder&, const SkRec
t* devBounds, | 72 virtual bool apply(GrContext*, const GrPipelineBuilder&, GrDrawContext*, |
| 73 GrAppliedClip*) const = 0; | 73 const SkRect* devBounds, GrAppliedClip*) const = 0; |
| 74 | 74 |
| 75 virtual ~GrClip() {} | 75 virtual ~GrClip() {} |
| 76 }; | 76 }; |
| 77 | 77 |
| 78 /** | 78 /** |
| 79 * Specialized implementation for no clip. | 79 * Specialized implementation for no clip. |
| 80 */ | 80 */ |
| 81 class GrNoClip final : public GrClip { | 81 class GrNoClip final : public GrClip { |
| 82 private: | 82 private: |
| 83 bool quickContains(const SkRect&) const final { return true; } | 83 bool quickContains(const SkRect&) const final { return true; } |
| 84 void getConservativeBounds(int width, int height, SkIRect* devResult, | 84 void getConservativeBounds(int width, int height, SkIRect* devResult, |
| 85 bool* isIntersectionOfRects) const final; | 85 bool* isIntersectionOfRects) const final; |
| 86 bool apply(GrClipMaskManager*, const GrPipelineBuilder&, | 86 bool apply(GrContext*, const GrPipelineBuilder&, GrDrawContext*, |
| 87 const SkRect*, GrAppliedClip*) const final { return true; } | 87 const SkRect*, GrAppliedClip*) const final { return true; } |
| 88 }; | 88 }; |
| 89 | 89 |
| 90 /** | 90 /** |
| 91 * GrFixedClip is a clip that can be represented by fixed-function hardware. It
never modifies the | 91 * GrFixedClip is a clip that can be represented by fixed-function hardware. It
never modifies the |
| 92 * stencil buffer itself, but can be configured to use whatever clip is already
there. | 92 * stencil buffer itself, but can be configured to use whatever clip is already
there. |
| 93 */ | 93 */ |
| 94 class GrFixedClip final : public GrClip { | 94 class GrFixedClip final : public GrClip { |
| 95 public: | 95 public: |
| 96 GrFixedClip() : fHasStencilClip(false) {} | 96 GrFixedClip() : fHasStencilClip(false) {} |
| (...skipping 12 matching lines...) Expand all Loading... |
| 109 void enableStencilClip(bool enable) { fHasStencilClip = enable; } | 109 void enableStencilClip(bool enable) { fHasStencilClip = enable; } |
| 110 | 110 |
| 111 const GrScissorState& scissorState() const { return fScissorState; } | 111 const GrScissorState& scissorState() const { return fScissorState; } |
| 112 bool hasStencilClip() const { return fHasStencilClip; } | 112 bool hasStencilClip() const { return fHasStencilClip; } |
| 113 | 113 |
| 114 bool quickContains(const SkRect&) const final; | 114 bool quickContains(const SkRect&) const final; |
| 115 void getConservativeBounds(int width, int height, SkIRect* devResult, | 115 void getConservativeBounds(int width, int height, SkIRect* devResult, |
| 116 bool* isIntersectionOfRects) const final; | 116 bool* isIntersectionOfRects) const final; |
| 117 | 117 |
| 118 private: | 118 private: |
| 119 bool apply(GrClipMaskManager*, const GrPipelineBuilder&, | 119 bool apply(GrContext*, const GrPipelineBuilder&, GrDrawContext*, |
| 120 const SkRect* devBounds, GrAppliedClip* out) const final; | 120 const SkRect* devBounds, GrAppliedClip* out) const final; |
| 121 | 121 |
| 122 GrScissorState fScissorState; | 122 GrScissorState fScissorState; |
| 123 bool fHasStencilClip; | 123 bool fHasStencilClip; |
| 124 }; | 124 }; |
| 125 | 125 |
| 126 /** | 126 /** |
| 127 * GrClipStackClip can apply a generic SkClipStack to the draw state. It may gen
erate clip masks or | 127 * GrClipStackClip can apply a generic SkClipStack to the draw state. It may gen
erate clip masks or |
| 128 * write to the stencil buffer during apply(). | 128 * write to the stencil buffer during apply(). |
| 129 */ | 129 */ |
| 130 class GrClipStackClip final : public GrClip { | 130 class GrClipStackClip final : public GrClip { |
| 131 public: | 131 public: |
| 132 GrClipStackClip(const SkClipStack* stack = nullptr, const SkIPoint* origin =
nullptr) { | 132 GrClipStackClip(const SkClipStack* stack = nullptr, const SkIPoint* origin =
nullptr) { |
| 133 this->reset(stack, origin); | 133 this->reset(stack, origin); |
| 134 } | 134 } |
| 135 | 135 |
| 136 void reset(const SkClipStack* stack = nullptr, const SkIPoint* origin = null
ptr) { | 136 void reset(const SkClipStack* stack = nullptr, const SkIPoint* origin = null
ptr) { |
| 137 fOrigin = origin ? *origin : SkIPoint::Make(0, 0); | 137 fOrigin = origin ? *origin : SkIPoint::Make(0, 0); |
| 138 fStack.reset(SkSafeRef(stack)); | 138 fStack.reset(SkSafeRef(stack)); |
| 139 } | 139 } |
| 140 | 140 |
| 141 const SkIPoint& origin() const { return fOrigin; } | 141 const SkIPoint& origin() const { return fOrigin; } |
| 142 const SkClipStack* clipStack() const { return fStack; } | 142 const SkClipStack* clipStack() const { return fStack; } |
| 143 | 143 |
| 144 bool quickContains(const SkRect&) const final; | 144 bool quickContains(const SkRect&) const final; |
| 145 void getConservativeBounds(int width, int height, SkIRect* devResult, | 145 void getConservativeBounds(int width, int height, SkIRect* devResult, |
| 146 bool* isIntersectionOfRects) const final; | 146 bool* isIntersectionOfRects) const final; |
| 147 bool apply(GrClipMaskManager*, const GrPipelineBuilder&, | 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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