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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 "GrClipMaskCache.h" | 10 #include "GrClipMaskCache.h" |
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42 } | 42 } |
43 | 43 |
44 /** | 44 /** |
45 * Creates a clip mask if necessary as a stencil buffer or alpha texture | 45 * Creates a clip mask if necessary as a stencil buffer or alpha texture |
46 * and sets the GrGpu's scissor and stencil state. If the return is false | 46 * and sets the GrGpu's scissor and stencil state. If the return is false |
47 * then the draw can be skipped. The AutoRestoreEffects is initialized by | 47 * then the draw can be skipped. The AutoRestoreEffects is initialized by |
48 * the manager when it must install additional effects to implement the | 48 * the manager when it must install additional effects to implement the |
49 * clip. devBounds is optional but can help optimize clipping. | 49 * clip. devBounds is optional but can help optimize clipping. |
50 */ | 50 */ |
51 bool setupClipping(GrPipelineBuilder*, | 51 bool setupClipping(GrPipelineBuilder*, |
52 GrPipelineBuilder::AutoRestoreEffects*, | 52 GrPipelineBuilder::AutoRestoreFragmentProcessors*, |
53 GrPipelineBuilder::AutoRestoreStencil*, | 53 GrPipelineBuilder::AutoRestoreStencil*, |
54 GrScissorState*, | 54 GrScissorState*, |
55 const SkRect* devBounds); | 55 const SkRect* devBounds); |
56 | 56 |
57 /** | 57 /** |
58 * Purge resources to free up memory. TODO: This class shouldn't hold any lo
ng lived refs | 58 * Purge resources to free up memory. TODO: This class shouldn't hold any lo
ng lived refs |
59 * which will allow Resourcecache to automatically purge anything this class
has created. | 59 * which will allow Resourcecache to automatically purge anything this class
has created. |
60 */ | 60 */ |
61 void purgeResources(); | 61 void purgeResources(); |
62 | 62 |
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87 // Clip against the existing representation of the clip in the high bit | 87 // Clip against the existing representation of the clip in the high bit |
88 // of the stencil buffer. | 88 // of the stencil buffer. |
89 kRespectClip_StencilClipMode, | 89 kRespectClip_StencilClipMode, |
90 // Neither writing to nor clipping against the clip bit. | 90 // Neither writing to nor clipping against the clip bit. |
91 kIgnoreClip_StencilClipMode, | 91 kIgnoreClip_StencilClipMode, |
92 }; | 92 }; |
93 | 93 |
94 // Attempts to install a series of coverage effects to implement the clip. R
eturn indicates | 94 // Attempts to install a series of coverage effects to implement the clip. R
eturn indicates |
95 // whether the element list was successfully converted to effects. | 95 // whether the element list was successfully converted to effects. |
96 bool installClipEffects(GrPipelineBuilder*, | 96 bool installClipEffects(GrPipelineBuilder*, |
97 GrPipelineBuilder::AutoRestoreEffects*, | 97 GrPipelineBuilder::AutoRestoreFragmentProcessors*, |
98 const GrReducedClip::ElementList&, | 98 const GrReducedClip::ElementList&, |
99 const SkVector& clipOffset, | 99 const SkVector& clipOffset, |
100 const SkRect* devBounds); | 100 const SkRect* devBounds); |
101 | 101 |
102 // Draws the clip into the stencil buffer | 102 // Draws the clip into the stencil buffer |
103 bool createStencilClipMask(GrRenderTarget*, | 103 bool createStencilClipMask(GrRenderTarget*, |
104 int32_t elementsGenID, | 104 int32_t elementsGenID, |
105 GrReducedClip::InitialState initialState, | 105 GrReducedClip::InitialState initialState, |
106 const GrReducedClip::ElementList& elements, | 106 const GrReducedClip::ElementList& elements, |
107 const SkIRect& clipSpaceIBounds, | 107 const SkIRect& clipSpaceIBounds, |
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189 kAlpha_ClipMaskType, | 189 kAlpha_ClipMaskType, |
190 } fCurrClipMaskType; | 190 } fCurrClipMaskType; |
191 | 191 |
192 GrClipMaskCache fAACache; // cache for the AA path | 192 GrClipMaskCache fAACache; // cache for the AA path |
193 GrClipTarget* fClipTarget; | 193 GrClipTarget* fClipTarget; |
194 StencilClipMode fClipMode; | 194 StencilClipMode fClipMode; |
195 | 195 |
196 typedef SkNoncopyable INHERITED; | 196 typedef SkNoncopyable INHERITED; |
197 }; | 197 }; |
198 #endif // GrClipMaskManager_DEFINED | 198 #endif // GrClipMaskManager_DEFINED |
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