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1 #include "GrBicubicEffect.h" | 1 #include "GrBicubicEffect.h" |
2 | 2 |
3 #define DS(x) SkDoubleToScalar(x) | 3 #define DS(x) SkDoubleToScalar(x) |
4 | 4 |
5 const SkScalar GrBicubicEffect::gMitchellCoefficients[16] = { | 5 const SkScalar GrBicubicEffect::gMitchellCoefficients[16] = { |
6 DS( 1.0 / 18.0), DS(-9.0 / 18.0), DS( 15.0 / 18.0), DS( -7.0 / 18.0), | 6 DS( 1.0 / 18.0), DS(-9.0 / 18.0), DS( 15.0 / 18.0), DS( -7.0 / 18.0), |
7 DS(16.0 / 18.0), DS( 0.0 / 18.0), DS(-36.0 / 18.0), DS( 21.0 / 18.0), | 7 DS(16.0 / 18.0), DS( 0.0 / 18.0), DS(-36.0 / 18.0), DS( 21.0 / 18.0), |
8 DS( 1.0 / 18.0), DS( 9.0 / 18.0), DS( 27.0 / 18.0), DS(-21.0 / 18.0), | 8 DS( 1.0 / 18.0), DS( 9.0 / 18.0), DS( 27.0 / 18.0), DS(-21.0 / 18.0), |
9 DS( 0.0 / 18.0), DS( 0.0 / 18.0), DS( -6.0 / 18.0), DS( 7.0 / 18.0), | 9 DS( 0.0 / 18.0), DS( 0.0 / 18.0), DS( -6.0 / 18.0), DS( 7.0 / 18.0), |
10 }; | 10 }; |
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37 : INHERITED(factory) { | 37 : INHERITED(factory) { |
38 } | 38 } |
39 | 39 |
40 void GrGLBicubicEffect::emitCode(GrGLShaderBuilder* builder, | 40 void GrGLBicubicEffect::emitCode(GrGLShaderBuilder* builder, |
41 const GrDrawEffect&, | 41 const GrDrawEffect&, |
42 EffectKey key, | 42 EffectKey key, |
43 const char* outputColor, | 43 const char* outputColor, |
44 const char* inputColor, | 44 const char* inputColor, |
45 const TransformedCoordsArray& coords, | 45 const TransformedCoordsArray& coords, |
46 const TextureSamplerArray& samplers) { | 46 const TextureSamplerArray& samplers) { |
| 47 sk_ignore_unused_variable(inputColor); |
| 48 |
47 SkString coords2D = builder->ensureFSCoords2D(coords, 0); | 49 SkString coords2D = builder->ensureFSCoords2D(coords, 0); |
48 fCoefficientsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibili
ty, | 50 fCoefficientsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibili
ty, |
49 kMat44f_GrSLType, "Coefficients"); | 51 kMat44f_GrSLType, "Coefficients"); |
50 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, | 52 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, |
51 kVec2f_GrSLType, "ImageIncrement"); | 53 kVec2f_GrSLType, "ImageIncrement"); |
52 | 54 |
53 const char* imgInc = builder->getUniformCStr(fImageIncrementUni); | 55 const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
54 const char* coeff = builder->getUniformCStr(fCoefficientsUni); | 56 const char* coeff = builder->getUniformCStr(fCoefficientsUni); |
55 | 57 |
56 SkString cubicBlendName; | 58 SkString cubicBlendName; |
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99 | 101 |
100 GrBicubicEffect::GrBicubicEffect(GrTexture* texture, | 102 GrBicubicEffect::GrBicubicEffect(GrTexture* texture, |
101 const SkScalar coefficients[16]) | 103 const SkScalar coefficients[16]) |
102 : INHERITED(texture, MakeDivByTextureWHMatrix(texture)) { | 104 : INHERITED(texture, MakeDivByTextureWHMatrix(texture)) { |
103 for (int y = 0; y < 4; y++) { | 105 for (int y = 0; y < 4; y++) { |
104 for (int x = 0; x < 4; x++) { | 106 for (int x = 0; x < 4; x++) { |
105 // Convert from row-major scalars to column-major floats. | 107 // Convert from row-major scalars to column-major floats. |
106 fCoefficients[x * 4 + y] = SkScalarToFloat(coefficients[y * 4 + x]); | 108 fCoefficients[x * 4 + y] = SkScalarToFloat(coefficients[y * 4 + x]); |
107 } | 109 } |
108 } | 110 } |
| 111 this->setWillNotUseInputColor(); |
109 } | 112 } |
110 | 113 |
111 GrBicubicEffect::GrBicubicEffect(GrTexture* texture, | 114 GrBicubicEffect::GrBicubicEffect(GrTexture* texture, |
112 const SkScalar coefficients[16], | 115 const SkScalar coefficients[16], |
113 const SkMatrix &matrix, | 116 const SkMatrix &matrix, |
114 const GrTextureParams ¶ms, | 117 const GrTextureParams ¶ms, |
115 GrCoordSet coordSet) | 118 GrCoordSet coordSet) |
116 : INHERITED(texture, MakeDivByTextureWHMatrix(texture), params, coordSet) { | 119 : INHERITED(texture, MakeDivByTextureWHMatrix(texture), params, coordSet) { |
117 for (int y = 0; y < 4; y++) { | 120 for (int y = 0; y < 4; y++) { |
118 for (int x = 0; x < 4; x++) { | 121 for (int x = 0; x < 4; x++) { |
119 // Convert from row-major scalars to column-major floats. | 122 // Convert from row-major scalars to column-major floats. |
120 fCoefficients[x * 4 + y] = SkScalarToFloat(coefficients[y * 4 + x]); | 123 fCoefficients[x * 4 + y] = SkScalarToFloat(coefficients[y * 4 + x]); |
121 } | 124 } |
122 } | 125 } |
| 126 this->setWillNotUseInputColor(); |
123 } | 127 } |
124 | 128 |
125 GrBicubicEffect::~GrBicubicEffect() { | 129 GrBicubicEffect::~GrBicubicEffect() { |
126 } | 130 } |
127 | 131 |
128 const GrBackendEffectFactory& GrBicubicEffect::getFactory() const { | 132 const GrBackendEffectFactory& GrBicubicEffect::getFactory() const { |
129 return GrTBackendEffectFactory<GrBicubicEffect>::getInstance(); | 133 return GrTBackendEffectFactory<GrBicubicEffect>::getInstance(); |
130 } | 134 } |
131 | 135 |
132 bool GrBicubicEffect::onIsEqual(const GrEffect& sBase) const { | 136 bool GrBicubicEffect::onIsEqual(const GrEffect& sBase) const { |
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148 const GrDrawTargetCaps&, | 152 const GrDrawTargetCaps&, |
149 GrTexture* textures[]) { | 153 GrTexture* textures[]) { |
150 int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx : | 154 int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx : |
151 GrEffectUnitTest::kAlphaTextureIdx; | 155 GrEffectUnitTest::kAlphaTextureIdx; |
152 SkScalar coefficients[16]; | 156 SkScalar coefficients[16]; |
153 for (int i = 0; i < 16; i++) { | 157 for (int i = 0; i < 16; i++) { |
154 coefficients[i] = random->nextSScalar1(); | 158 coefficients[i] = random->nextSScalar1(); |
155 } | 159 } |
156 return GrBicubicEffect::Create(textures[texIdx], coefficients); | 160 return GrBicubicEffect::Create(textures[texIdx], coefficients); |
157 } | 161 } |
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