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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 | 7 |
| 8 #ifndef GrClipMaskCache_DEFINED | 8 #ifndef GrClipMaskCache_DEFINED |
| 9 #define GrClipMaskCache_DEFINED | 9 #define GrClipMaskCache_DEFINED |
| 10 | 10 |
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| 48 back->fLastBound == bounds && | 48 back->fLastBound == bounds && |
| 49 back->fLastClipGenID == clipGenID) { | 49 back->fLastClipGenID == clipGenID) { |
| 50 return true; | 50 return true; |
| 51 } | 51 } |
| 52 | 52 |
| 53 return false; | 53 return false; |
| 54 } | 54 } |
| 55 | 55 |
| 56 void reset() { | 56 void reset() { |
| 57 if (fStack.empty()) { | 57 if (fStack.empty()) { |
| 58 // GrAssert(false); | 58 // SkASSERT(false); |
| 59 return; | 59 return; |
| 60 } | 60 } |
| 61 | 61 |
| 62 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 62 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 63 | 63 |
| 64 back->reset(); | 64 back->reset(); |
| 65 } | 65 } |
| 66 | 66 |
| 67 /** | 67 /** |
| 68 * After a "push" the clip state is entirely open. Currently, the | 68 * After a "push" the clip state is entirely open. Currently, the |
| 69 * entire clip stack will be re-rendered into a new clip mask. | 69 * entire clip stack will be re-rendered into a new clip mask. |
| 70 * TODO: can we take advantage of the nested nature of the clips to | 70 * TODO: can we take advantage of the nested nature of the clips to |
| 71 * reduce the mask creation cost? | 71 * reduce the mask creation cost? |
| 72 */ | 72 */ |
| 73 void push(); | 73 void push(); |
| 74 | 74 |
| 75 void pop() { | 75 void pop() { |
| 76 //GrAssert(!fStack.empty()); | 76 //SkASSERT(!fStack.empty()); |
| 77 | 77 |
| 78 if (!fStack.empty()) { | 78 if (!fStack.empty()) { |
| 79 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 79 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 80 | 80 |
| 81 back->~GrClipStackFrame(); | 81 back->~GrClipStackFrame(); |
| 82 fStack.pop_back(); | 82 fStack.pop_back(); |
| 83 } | 83 } |
| 84 } | 84 } |
| 85 | 85 |
| 86 int32_t getLastClipGenID() const { | 86 int32_t getLastClipGenID() const { |
| 87 | 87 |
| 88 if (fStack.empty()) { | 88 if (fStack.empty()) { |
| 89 return SkClipStack::kInvalidGenID; | 89 return SkClipStack::kInvalidGenID; |
| 90 } | 90 } |
| 91 | 91 |
| 92 return ((GrClipStackFrame*) fStack.back())->fLastClipGenID; | 92 return ((GrClipStackFrame*) fStack.back())->fLastClipGenID; |
| 93 } | 93 } |
| 94 | 94 |
| 95 GrTexture* getLastMask() { | 95 GrTexture* getLastMask() { |
| 96 | 96 |
| 97 if (fStack.empty()) { | 97 if (fStack.empty()) { |
| 98 GrAssert(false); | 98 SkASSERT(false); |
| 99 return NULL; | 99 return NULL; |
| 100 } | 100 } |
| 101 | 101 |
| 102 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 102 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 103 | 103 |
| 104 return back->fLastMask.texture(); | 104 return back->fLastMask.texture(); |
| 105 } | 105 } |
| 106 | 106 |
| 107 const GrTexture* getLastMask() const { | 107 const GrTexture* getLastMask() const { |
| 108 | 108 |
| 109 if (fStack.empty()) { | 109 if (fStack.empty()) { |
| 110 GrAssert(false); | 110 SkASSERT(false); |
| 111 return NULL; | 111 return NULL; |
| 112 } | 112 } |
| 113 | 113 |
| 114 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 114 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 115 | 115 |
| 116 return back->fLastMask.texture(); | 116 return back->fLastMask.texture(); |
| 117 } | 117 } |
| 118 | 118 |
| 119 void acquireMask(int32_t clipGenID, | 119 void acquireMask(int32_t clipGenID, |
| 120 const GrTextureDesc& desc, | 120 const GrTextureDesc& desc, |
| 121 const SkIRect& bound) { | 121 const SkIRect& bound) { |
| 122 | 122 |
| 123 if (fStack.empty()) { | 123 if (fStack.empty()) { |
| 124 GrAssert(false); | 124 SkASSERT(false); |
| 125 return; | 125 return; |
| 126 } | 126 } |
| 127 | 127 |
| 128 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 128 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 129 | 129 |
| 130 back->acquireMask(fContext, clipGenID, desc, bound); | 130 back->acquireMask(fContext, clipGenID, desc, bound); |
| 131 } | 131 } |
| 132 | 132 |
| 133 int getLastMaskWidth() const { | 133 int getLastMaskWidth() const { |
| 134 | 134 |
| 135 if (fStack.empty()) { | 135 if (fStack.empty()) { |
| 136 GrAssert(false); | 136 SkASSERT(false); |
| 137 return -1; | 137 return -1; |
| 138 } | 138 } |
| 139 | 139 |
| 140 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 140 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 141 | 141 |
| 142 if (NULL == back->fLastMask.texture()) { | 142 if (NULL == back->fLastMask.texture()) { |
| 143 return -1; | 143 return -1; |
| 144 } | 144 } |
| 145 | 145 |
| 146 return back->fLastMask.texture()->width(); | 146 return back->fLastMask.texture()->width(); |
| 147 } | 147 } |
| 148 | 148 |
| 149 int getLastMaskHeight() const { | 149 int getLastMaskHeight() const { |
| 150 | 150 |
| 151 if (fStack.empty()) { | 151 if (fStack.empty()) { |
| 152 GrAssert(false); | 152 SkASSERT(false); |
| 153 return -1; | 153 return -1; |
| 154 } | 154 } |
| 155 | 155 |
| 156 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 156 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 157 | 157 |
| 158 if (NULL == back->fLastMask.texture()) { | 158 if (NULL == back->fLastMask.texture()) { |
| 159 return -1; | 159 return -1; |
| 160 } | 160 } |
| 161 | 161 |
| 162 return back->fLastMask.texture()->height(); | 162 return back->fLastMask.texture()->height(); |
| 163 } | 163 } |
| 164 | 164 |
| 165 void getLastBound(SkIRect* bound) const { | 165 void getLastBound(SkIRect* bound) const { |
| 166 | 166 |
| 167 if (fStack.empty()) { | 167 if (fStack.empty()) { |
| 168 GrAssert(false); | 168 SkASSERT(false); |
| 169 bound->setEmpty(); | 169 bound->setEmpty(); |
| 170 return; | 170 return; |
| 171 } | 171 } |
| 172 | 172 |
| 173 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); | 173 GrClipStackFrame* back = (GrClipStackFrame*) fStack.back(); |
| 174 | 174 |
| 175 *bound = back->fLastBound; | 175 *bound = back->fLastBound; |
| 176 } | 176 } |
| 177 | 177 |
| 178 void setContext(GrContext* context) { | 178 void setContext(GrContext* context) { |
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| 230 SkIRect fLastBound; | 230 SkIRect fLastBound; |
| 231 }; | 231 }; |
| 232 | 232 |
| 233 GrContext* fContext; | 233 GrContext* fContext; |
| 234 SkDeque fStack; | 234 SkDeque fStack; |
| 235 | 235 |
| 236 typedef GrNoncopyable INHERITED; | 236 typedef GrNoncopyable INHERITED; |
| 237 }; | 237 }; |
| 238 | 238 |
| 239 #endif // GrClipMaskCache_DEFINED | 239 #endif // GrClipMaskCache_DEFINED |
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