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comparison: gfx/skia/trunk/src/effects/SkGpuBlurUtils.h
gfx/skia/trunk/src/effects/SkGpuBlurUtils.h
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
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| -1:000000000000 | 0:8f295cb01daf |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkGpuBlurUtils_DEFINED | |
| 9 #define SkGpuBlurUtils_DEFINED | |
| 10 | |
| 11 #if SK_SUPPORT_GPU | |
| 12 class GrTexture; | |
| 13 class GrContext; | |
| 14 #endif | |
| 15 | |
| 16 struct SkRect; | |
| 17 | |
| 18 namespace SkGpuBlurUtils { | |
| 19 | |
| 20 #if SK_SUPPORT_GPU | |
| 21 /** | |
| 22 * Applies a 2D Gaussian blur to a given texture. | |
| 23 * @param context The GPU context | |
| 24 * @param srcTexture The source texture to be blurred. | |
| 25 * @param canClobberSrc If true, srcTexture may be overwritten, and | |
| 26 * may be returned as the result. | |
| 27 * @param rect The destination rectangle. | |
| 28 * @param cropToRect If true, do not sample any pixels outside the | |
| 29 * source rect. | |
| 30 * @param sigmaX The blur's standard deviation in X. | |
| 31 * @param sigmaY The blur's standard deviation in Y. | |
| 32 * @return the blurred texture, which may be srcTexture reffed, or a | |
| 33 * new texture. It is the caller's responsibility to unref this texture. | |
| 34 */ | |
| 35 GrTexture* GaussianBlur(GrContext* context, | |
| 36 GrTexture* srcTexture, | |
| 37 bool canClobberSrc, | |
| 38 const SkRect& rect, | |
| 39 bool cropToRect, | |
| 40 float sigmaX, | |
| 41 float sigmaY); | |
| 42 #endif | |
| 43 | |
| 44 }; | |
| 45 | |
| 46 #endif |
