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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 GrConvolutionEffect_DEFINED | 8 #ifndef GrConvolutionEffect_DEFINED |
9 #define GrConvolutionEffect_DEFINED | 9 #define GrConvolutionEffect_DEFINED |
10 | 10 |
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52 | 52 |
53 virtual ~GrConvolutionEffect(); | 53 virtual ~GrConvolutionEffect(); |
54 | 54 |
55 const float* kernel() const { return fKernel; } | 55 const float* kernel() const { return fKernel; } |
56 | 56 |
57 const float* bounds() const { return fBounds; } | 57 const float* bounds() const { return fBounds; } |
58 bool useBounds() const { return fUseBounds; } | 58 bool useBounds() const { return fUseBounds; } |
59 | 59 |
60 const char* name() const override { return "Convolution"; } | 60 const char* name() const override { return "Convolution"; } |
61 | 61 |
62 void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const overri
de; | 62 void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const over
ride; |
63 | 63 |
64 GrGLFragmentProcessor* createGLInstance() const override; | 64 GrGLFragmentProcessor* createGLInstance() const override; |
65 | 65 |
66 enum { | 66 enum { |
67 // This was decided based on the min allowed value for the max texture | 67 // This was decided based on the min allowed value for the max texture |
68 // samples per fragment program run in DX9SM2 (32). A sigma param of 4.0 | 68 // samples per fragment program run in DX9SM2 (32). A sigma param of 4.0 |
69 // on a blur filter gives a kernel width of 25 while a sigma of 5.0 | 69 // on a blur filter gives a kernel width of 25 while a sigma of 5.0 |
70 // would exceed a 32 wide kernel. | 70 // would exceed a 32 wide kernel. |
71 kMaxKernelRadius = 12, | 71 kMaxKernelRadius = 12, |
72 // With a C++11 we could have a constexpr version of WidthFromRadius() | 72 // With a C++11 we could have a constexpr version of WidthFromRadius() |
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101 // kernel values. | 101 // kernel values. |
102 inout->mulByUnknownFourComponents(); | 102 inout->mulByUnknownFourComponents(); |
103 } | 103 } |
104 | 104 |
105 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 105 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
106 | 106 |
107 typedef Gr1DKernelEffect INHERITED; | 107 typedef Gr1DKernelEffect INHERITED; |
108 }; | 108 }; |
109 | 109 |
110 #endif | 110 #endif |
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