| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 SkGpuBlurUtils_DEFINED | 8 #ifndef SkGpuBlurUtils_DEFINED |
| 9 #define SkGpuBlurUtils_DEFINED | 9 #define SkGpuBlurUtils_DEFINED |
| 10 | 10 |
| 11 #if SK_SUPPORT_GPU | 11 #if SK_SUPPORT_GPU |
| 12 #include "GrRenderTargetContext.h" | 12 #include "GrRenderTargetContext.h" |
| 13 | 13 |
| 14 class GrContext; | 14 class GrContext; |
| 15 class GrTexture; | 15 class GrTextureProxy; |
| 16 | 16 |
| 17 struct SkRect; | 17 struct SkRect; |
| 18 | 18 |
| 19 namespace SkGpuBlurUtils { | 19 namespace SkGpuBlurUtils { |
| 20 /** | 20 /** |
| 21 * Applies a 2D Gaussian blur to a given texture. The blurred result is retur
ned | 21 * Applies a 2D Gaussian blur to a given texture. The blurred result is retur
ned |
| 22 * as a renderTargetContext in case the caller wishes to future draw into the
result. | 22 * as a renderTargetContext in case the caller wishes to future draw into the
result. |
| 23 * Note: one of sigmaX and sigmaY should be non-zero! | 23 * Note: one of sigmaX and sigmaY should be non-zero! |
| 24 * @param context The GPU context | 24 * @param context The GPU context |
| 25 * @param srcTexture The source texture to be blurred. | 25 * @param srcTexture The source texture to be blurred. |
| 26 * @param colorSpace Color space of the source (used for the renderTarge
tContext result, | 26 * @param colorSpace Color space of the source (used for the renderTarge
tContext result, |
| 27 * too). | 27 * too). |
| 28 * @param dstBounds The destination bounds, relative to the source text
ure. | 28 * @param dstBounds The destination bounds, relative to the source text
ure. |
| 29 * @param srcBounds The source bounds, relative to the source texture.
If non-null, | 29 * @param srcBounds The source bounds, relative to the source texture.
If non-null, |
| 30 * no pixels will be sampled outside of this rectangle
. | 30 * no pixels will be sampled outside of this rectangle
. |
| 31 * @param sigmaX The blur's standard deviation in X. | 31 * @param sigmaX The blur's standard deviation in X. |
| 32 * @param sigmaY The blur's standard deviation in Y. | 32 * @param sigmaY The blur's standard deviation in Y. |
| 33 * @param fit backing fit for the returned render target context | 33 * @param fit backing fit for the returned render target context |
| 34 * @return The renderTargetContext containing the blurred resu
lt. | 34 * @return The renderTargetContext containing the blurred resu
lt. |
| 35 */ | 35 */ |
| 36 sk_sp<GrRenderTargetContext> GaussianBlur(GrContext* context, | 36 sk_sp<GrRenderTargetContext> GaussianBlur(GrContext* context, |
| 37 GrTexture* srcTexture, | 37 GrTextureProxy* srcTexture, |
| 38 sk_sp<SkColorSpace> colorSpace, | 38 sk_sp<SkColorSpace> colorSpace, |
| 39 const SkIRect& dstBounds, | 39 const SkIRect& dstBounds, |
| 40 const SkIRect* srcBounds, | 40 const SkIRect* srcBounds, |
| 41 float sigmaX, | 41 float sigmaX, |
| 42 float sigmaY, | 42 float sigmaY, |
| 43 SkBackingFit fit = SkBackingFit::k
Approx); | 43 SkBackingFit fit = SkBackingFit::k
Approx); |
| 44 }; | 44 }; |
| 45 | 45 |
| 46 #endif | 46 #endif |
| 47 #endif | 47 #endif |
| OLD | NEW |