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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 SkImage_DEFINED | 8 #ifndef SkImage_DEFINED |
9 #define SkImage_DEFINED | 9 #define SkImage_DEFINED |
10 | 10 |
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317 * to empty. | 317 * to empty. |
318 */ | 318 */ |
319 bool asLegacyBitmap(SkBitmap*, LegacyBitmapMode) const; | 319 bool asLegacyBitmap(SkBitmap*, LegacyBitmapMode) const; |
320 | 320 |
321 /** | 321 /** |
322 * Returns true if the image is backed by an image-generator or other src t
hat creates | 322 * Returns true if the image is backed by an image-generator or other src t
hat creates |
323 * (and caches) its pixels / texture on-demand. | 323 * (and caches) its pixels / texture on-demand. |
324 */ | 324 */ |
325 bool isLazyGenerated() const; | 325 bool isLazyGenerated() const; |
326 | 326 |
327 /** | |
328 * Apply the specified filter to this image, and return the result as a new
image. | |
329 * | |
330 * if forceResultToOriginalSize is true, then the resulting image will be t
he same size as the | |
331 * src, regardless of the normal output of the filter. | |
332 * | |
333 * If offset is non-null, it is set to the relative offset needed to draw t
he resulting image | |
334 * in the same logical place as the original. | |
335 * | |
336 * e.g. | |
337 * If the filter makes the result larger by a margin of 4 the output wo
uld be: | |
338 * result->width() == this->width + 8 | |
339 * result->height() == this->height + 8 | |
340 * offset.x() == -4 | |
341 * offset.y() == -4 | |
342 * | |
343 * If the filter fails to create a resulting image, null is returned, and t
he offset parameter | |
344 * (if specified) will be undefined. | |
345 */ | |
346 SkImage* applyFilter(SkImageFilter* filter, SkIPoint* offset, | |
347 bool forceResultToOriginalSize) const; | |
348 | |
349 protected: | 327 protected: |
350 SkImage(int width, int height, uint32_t uniqueID); | 328 SkImage(int width, int height, uint32_t uniqueID); |
351 | 329 |
352 private: | 330 private: |
353 const int fWidth; | 331 const int fWidth; |
354 const int fHeight; | 332 const int fHeight; |
355 const uint32_t fUniqueID; | 333 const uint32_t fUniqueID; |
356 | 334 |
357 typedef SkRefCnt INHERITED; | 335 typedef SkRefCnt INHERITED; |
358 }; | 336 }; |
359 | 337 |
360 #endif | 338 #endif |
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