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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 SkImageFilter_DEFINED | 8 #ifndef SkImageFilter_DEFINED |
9 #define SkImageFilter_DEFINED | 9 #define SkImageFilter_DEFINED |
10 | 10 |
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163 * kReverse_MapDirection is used to determine which rect of the source | 163 * kReverse_MapDirection is used to determine which rect of the source |
164 * image would be required to fill the given rect (typically, clip bounds). | 164 * image would be required to fill the given rect (typically, clip bounds). |
165 * Used for clipping and temp-buffer allocations, so the result need not | 165 * Used for clipping and temp-buffer allocations, so the result need not |
166 * be exact, but should never be smaller than the real answer. The default | 166 * be exact, but should never be smaller than the real answer. The default |
167 * implementation recursively unions all input bounds, or returns the | 167 * implementation recursively unions all input bounds, or returns the |
168 * source rect if no inputs. | 168 * source rect if no inputs. |
169 */ | 169 */ |
170 SkIRect filterBounds(const SkIRect& src, const SkMatrix& ctm, | 170 SkIRect filterBounds(const SkIRect& src, const SkMatrix& ctm, |
171 MapDirection = kReverse_MapDirection) const; | 171 MapDirection = kReverse_MapDirection) const; |
172 | 172 |
173 #ifdef SK_SUPPORT_LEGACY_FILTERBOUNDS_RETURN | |
174 /* DEPRECATED */ | |
175 bool filterBounds(const SkIRect& src, const SkMatrix& ctm, SkIRect* dst, | |
176 MapDirection = kReverse_MapDirection) const; | |
177 #endif | |
178 | |
179 /** | 173 /** |
180 * Returns true if the filter can be processed on the GPU. This is most | 174 * Returns true if the filter can be processed on the GPU. This is most |
181 * often used for multi-pass effects, where intermediate results must be | 175 * often used for multi-pass effects, where intermediate results must be |
182 * rendered to textures. For single-pass effects, use asFragmentProcessor(
). | 176 * rendered to textures. For single-pass effects, use asFragmentProcessor(
). |
183 * The default implementation returns asFragmentProcessor(NULL, NULL, SkMat
rix::I(), | 177 * The default implementation returns asFragmentProcessor(NULL, NULL, SkMat
rix::I(), |
184 * SkIRect()). | 178 * SkIRect()). |
185 */ | 179 */ |
186 virtual bool canFilterImageGPU() const; | 180 virtual bool canFilterImageGPU() const; |
187 | 181 |
188 /** | 182 /** |
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483 */ | 477 */ |
484 #define SK_IMAGEFILTER_UNFLATTEN_COMMON(localVar, expectedCount) \ | 478 #define SK_IMAGEFILTER_UNFLATTEN_COMMON(localVar, expectedCount) \ |
485 Common localVar; \ | 479 Common localVar; \ |
486 do { \ | 480 do { \ |
487 if (!localVar.unflatten(buffer, expectedCount)) { \ | 481 if (!localVar.unflatten(buffer, expectedCount)) { \ |
488 return NULL; \ | 482 return NULL; \ |
489 } \ | 483 } \ |
490 } while (0) | 484 } while (0) |
491 | 485 |
492 #endif | 486 #endif |
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