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Side by Side Diff: src/core/SkGpuBlurUtils.h

Issue 2215323003: Start using RenderTargetProxy (omnibus) (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: update Created 4 years, 1 month ago
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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
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