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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 GrBicubicTextureEffect_DEFINED | 8 #ifndef GrBicubicTextureEffect_DEFINED |
9 #define GrBicubicTextureEffect_DEFINED | 9 #define GrBicubicTextureEffect_DEFINED |
10 | 10 |
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29 | 29 |
30 void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const over
ride; | 30 void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const over
ride; |
31 | 31 |
32 GrGLFragmentProcessor* createGLInstance() const override; | 32 GrGLFragmentProcessor* createGLInstance() const override; |
33 | 33 |
34 const GrTextureDomain& domain() const { return fDomain; } | 34 const GrTextureDomain& domain() const { return fDomain; } |
35 | 35 |
36 /** | 36 /** |
37 * Create a simple filter effect with custom bicubic coefficients and option
al domain. | 37 * Create a simple filter effect with custom bicubic coefficients and option
al domain. |
38 */ | 38 */ |
39 static GrFragmentProcessor* Create(GrTexture* tex, const SkScalar coefficien
ts[16], | 39 static GrFragmentProcessor* Create(GrProcessorDataManager* procDataManager,
GrTexture* tex, |
40 const SkRect* domain = NULL) { | 40 const SkScalar coefficients[16], |
| 41 const SkRect* domain = NULL) { |
41 if (NULL == domain) { | 42 if (NULL == domain) { |
42 static const SkShader::TileMode kTileModes[] = { SkShader::kClamp_Ti
leMode, | 43 static const SkShader::TileMode kTileModes[] = { SkShader::kClamp_Ti
leMode, |
43 SkShader::kClamp_Ti
leMode }; | 44 SkShader::kClamp_Ti
leMode }; |
44 return Create(tex, coefficients, GrCoordTransform::MakeDivByTextureW
HMatrix(tex), | 45 return Create(procDataManager, tex, coefficients, |
45 kTileModes); | 46 GrCoordTransform::MakeDivByTextureWHMatrix(tex), kTile
Modes); |
46 } else { | 47 } else { |
47 return SkNEW_ARGS(GrBicubicEffect, (tex, coefficients, | 48 return SkNEW_ARGS(GrBicubicEffect, (procDataManager, tex, coefficien
ts, |
48 GrCoordTransform::MakeDivByTextu
reWHMatrix(tex), | 49 GrCoordTransform::MakeDivByTextu
reWHMatrix(tex), |
49 *domain)); | 50 *domain)); |
50 } | 51 } |
51 } | 52 } |
52 | 53 |
53 /** | 54 /** |
54 * Create a Mitchell filter effect with specified texture matrix and x/y til
e modes. | 55 * Create a Mitchell filter effect with specified texture matrix and x/y til
e modes. |
55 */ | 56 */ |
56 static GrFragmentProcessor* Create(GrTexture* tex, const SkMatrix& matrix, | 57 static GrFragmentProcessor* Create(GrProcessorDataManager* procDataManager,
GrTexture* tex, |
57 SkShader::TileMode tileModes[2]) { | 58 const SkMatrix& matrix, |
58 return Create(tex, gMitchellCoefficients, matrix, tileModes); | 59 SkShader::TileMode tileModes[2]) { |
| 60 return Create(procDataManager, tex, gMitchellCoefficients, matrix, tileM
odes); |
59 } | 61 } |
60 | 62 |
61 /** | 63 /** |
62 * Create a filter effect with custom bicubic coefficients, the texture matr
ix, and the x/y | 64 * Create a filter effect with custom bicubic coefficients, the texture matr
ix, and the x/y |
63 * tilemodes. | 65 * tilemodes. |
64 */ | 66 */ |
65 static GrFragmentProcessor* Create(GrTexture* tex, const SkScalar coefficien
ts[16], | 67 static GrFragmentProcessor* Create(GrProcessorDataManager* procDataManager,
GrTexture* tex, |
66 const SkMatrix& matrix, | 68 const SkScalar coefficients[16], const Sk
Matrix& matrix, |
67 const SkShader::TileMode tileModes[2]) { | 69 const SkShader::TileMode tileModes[2]) { |
68 return SkNEW_ARGS(GrBicubicEffect, (tex, coefficients, matrix, tileModes
)); | 70 return SkNEW_ARGS(GrBicubicEffect, (procDataManager, tex, coefficients,
matrix, tileModes)); |
69 } | 71 } |
70 | 72 |
71 /** | 73 /** |
72 * Create a Mitchell filter effect with a texture matrix and a domain. | 74 * Create a Mitchell filter effect with a texture matrix and a domain. |
73 */ | 75 */ |
74 static GrFragmentProcessor* Create(GrTexture* tex, const SkMatrix& matrix, | 76 static GrFragmentProcessor* Create(GrProcessorDataManager* procDataManager,
GrTexture* tex, |
75 const SkRect& domain) { | 77 const SkMatrix& matrix, const SkRect& dom
ain) { |
76 return SkNEW_ARGS(GrBicubicEffect, (tex, gMitchellCoefficients, matrix,
domain)); | 78 return SkNEW_ARGS(GrBicubicEffect, (procDataManager, tex, gMitchellCoeff
icients, matrix, |
| 79 domain)); |
77 } | 80 } |
78 | 81 |
79 /** | 82 /** |
80 * Determines whether the bicubic effect should be used based on the transfo
rmation from the | 83 * Determines whether the bicubic effect should be used based on the transfo
rmation from the |
81 * local coords to the device. Returns true if the bicubic effect should be
used. filterMode | 84 * local coords to the device. Returns true if the bicubic effect should be
used. filterMode |
82 * is set to appropriate filtering mode to use regardless of the return resu
lt (e.g. when this | 85 * is set to appropriate filtering mode to use regardless of the return resu
lt (e.g. when this |
83 * returns false it may indicate that the best fallback is to use kMipMap, k
Bilerp, or | 86 * returns false it may indicate that the best fallback is to use kMipMap, k
Bilerp, or |
84 * kNearest). | 87 * kNearest). |
85 */ | 88 */ |
86 static bool ShouldUseBicubic(const SkMatrix& localCoordsToDevice, | 89 static bool ShouldUseBicubic(const SkMatrix& localCoordsToDevice, |
87 GrTextureParams::FilterMode* filterMode); | 90 GrTextureParams::FilterMode* filterMode); |
88 | 91 |
89 private: | 92 private: |
90 GrBicubicEffect(GrTexture*, const SkScalar coefficients[16], | 93 GrBicubicEffect(GrProcessorDataManager*, GrTexture*, const SkScalar coeffici
ents[16], |
91 const SkMatrix &matrix, const SkShader::TileMode tileModes[2
]); | 94 const SkMatrix &matrix, const SkShader::TileMode tileModes[2
]); |
92 GrBicubicEffect(GrTexture*, const SkScalar coefficients[16], | 95 GrBicubicEffect(GrProcessorDataManager*, GrTexture*, const SkScalar coeffici
ents[16], |
93 const SkMatrix &matrix, const SkRect& domain); | 96 const SkMatrix &matrix, const SkRect& domain); |
94 bool onIsEqual(const GrFragmentProcessor&) const override; | 97 bool onIsEqual(const GrFragmentProcessor&) const override; |
95 | 98 |
96 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; | 99 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
97 | 100 |
98 float fCoefficients[16]; | 101 float fCoefficients[16]; |
99 GrTextureDomain fDomain; | 102 GrTextureDomain fDomain; |
100 | 103 |
101 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 104 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
102 | 105 |
103 static const SkScalar gMitchellCoefficients[16]; | 106 static const SkScalar gMitchellCoefficients[16]; |
104 | 107 |
105 typedef GrSingleTextureEffect INHERITED; | 108 typedef GrSingleTextureEffect INHERITED; |
106 }; | 109 }; |
107 | 110 |
108 #endif | 111 #endif |
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