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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 #ifndef GrClipMaskManager_DEFINED | 7 #ifndef GrClipMaskManager_DEFINED |
8 #define GrClipMaskManager_DEFINED | 8 #define GrClipMaskManager_DEFINED |
9 | 9 |
10 #include "GrPipelineBuilder.h" | 10 #include "GrPipelineBuilder.h" |
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82 // Clip against the existing representation of the clip in the high bit | 82 // Clip against the existing representation of the clip in the high bit |
83 // of the stencil buffer. | 83 // of the stencil buffer. |
84 kRespectClip_StencilClipMode, | 84 kRespectClip_StencilClipMode, |
85 // Neither writing to nor clipping against the clip bit. | 85 // Neither writing to nor clipping against the clip bit. |
86 kIgnoreClip_StencilClipMode, | 86 kIgnoreClip_StencilClipMode, |
87 }; | 87 }; |
88 | 88 |
89 // Attempts to install a series of coverage effects to implement the clip. R
eturn indicates | 89 // Attempts to install a series of coverage effects to implement the clip. R
eturn indicates |
90 // whether the element list was successfully converted to processors. *fp ma
y be nullptr even | 90 // whether the element list was successfully converted to processors. *fp ma
y be nullptr even |
91 // when the function succeeds because all the elements were ignored. TODO: M
ake clip reduction | 91 // when the function succeeds because all the elements were ignored. TODO: M
ake clip reduction |
92 // bounds-aware and stop checking bounds in this function. | 92 // bounds-aware and stop checking bounds in this function. Similarly, we sho
uldn't need to pass |
| 93 // abortIfAA, but we don't yet know if all the AA elements will be eliminate
d. |
93 bool getAnalyticClipProcessor(const GrReducedClip::ElementList&, | 94 bool getAnalyticClipProcessor(const GrReducedClip::ElementList&, |
| 95 bool abortIfAA, |
94 SkVector& clipOffset, | 96 SkVector& clipOffset, |
95 const SkRect* devBounds, | 97 const SkRect* devBounds, |
96 const GrFragmentProcessor** fp); | 98 const GrFragmentProcessor** fp); |
97 | 99 |
98 // Draws the clip into the stencil buffer | 100 // Draws the clip into the stencil buffer |
99 bool createStencilClipMask(GrRenderTarget*, | 101 bool createStencilClipMask(GrRenderTarget*, |
100 int32_t elementsGenID, | 102 int32_t elementsGenID, |
101 GrReducedClip::InitialState initialState, | 103 GrReducedClip::InitialState initialState, |
102 const GrReducedClip::ElementList& elements, | 104 const GrReducedClip::ElementList& elements, |
103 const SkIRect& clipSpaceIBounds, | 105 const SkIRect& clipSpaceIBounds, |
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166 GrTexture* createCachedMask(int width, int height, const GrUniqueKey& key, b
ool renderTarget); | 168 GrTexture* createCachedMask(int width, int height, const GrUniqueKey& key, b
ool renderTarget); |
167 | 169 |
168 static const int kMaxAnalyticElements = 4; | 170 static const int kMaxAnalyticElements = 4; |
169 | 171 |
170 GrDrawTarget* fDrawTarget; // This is our owning draw target. | 172 GrDrawTarget* fDrawTarget; // This is our owning draw target. |
171 StencilClipMode fClipMode; | 173 StencilClipMode fClipMode; |
172 | 174 |
173 typedef SkNoncopyable INHERITED; | 175 typedef SkNoncopyable INHERITED; |
174 }; | 176 }; |
175 #endif // GrClipMaskManager_DEFINED | 177 #endif // GrClipMaskManager_DEFINED |
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