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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
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 #include "SkBitmap.h" | 8 #include "SkBitmap.h" |
9 #include "SkMagnifierImageFilter.h" | 9 #include "SkMagnifierImageFilter.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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91 | 91 |
92 // For brevity | 92 // For brevity |
93 typedef GrGLProgramDataManager::UniformHandle UniformHandle; | 93 typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
94 | 94 |
95 class GrGLMagnifierEffect : public GrGLFragmentProcessor { | 95 class GrGLMagnifierEffect : public GrGLFragmentProcessor { |
96 public: | 96 public: |
97 GrGLMagnifierEffect(const GrBackendProcessorFactory&, const GrProcessor&); | 97 GrGLMagnifierEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
98 | 98 |
99 virtual void emitCode(GrGLFPBuilder*, | 99 virtual void emitCode(GrGLFPBuilder*, |
100 const GrFragmentProcessor&, | 100 const GrFragmentProcessor&, |
101 const GrProcessorKey&, | |
102 const char* outputColor, | 101 const char* outputColor, |
103 const char* inputColor, | 102 const char* inputColor, |
104 const TransformedCoordsArray&, | 103 const TransformedCoordsArray&, |
105 const TextureSamplerArray&) SK_OVERRIDE; | 104 const TextureSamplerArray&) SK_OVERRIDE; |
106 | 105 |
107 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; | 106 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; |
108 | 107 |
109 private: | 108 private: |
110 UniformHandle fOffsetVar; | 109 UniformHandle fOffsetVar; |
111 UniformHandle fInvZoomVar; | 110 UniformHandle fInvZoomVar; |
112 UniformHandle fInvInsetVar; | 111 UniformHandle fInvInsetVar; |
113 | 112 |
114 typedef GrGLFragmentProcessor INHERITED; | 113 typedef GrGLFragmentProcessor INHERITED; |
115 }; | 114 }; |
116 | 115 |
117 GrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendProcessorFactory& factor
y, | 116 GrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendProcessorFactory& factor
y, |
118 const GrProcessor&) | 117 const GrProcessor&) |
119 : INHERITED(factory) { | 118 : INHERITED(factory) { |
120 } | 119 } |
121 | 120 |
122 void GrGLMagnifierEffect::emitCode(GrGLFPBuilder* builder, | 121 void GrGLMagnifierEffect::emitCode(GrGLFPBuilder* builder, |
123 const GrFragmentProcessor&, | 122 const GrFragmentProcessor&, |
124 const GrProcessorKey& key, | |
125 const char* outputColor, | 123 const char* outputColor, |
126 const char* inputColor, | 124 const char* inputColor, |
127 const TransformedCoordsArray& coords, | 125 const TransformedCoordsArray& coords, |
128 const TextureSamplerArray& samplers) { | 126 const TextureSamplerArray& samplers) { |
129 fOffsetVar = builder->addUniform( | 127 fOffsetVar = builder->addUniform( |
130 GrGLProgramBuilder::kFragment_Visibility | | 128 GrGLProgramBuilder::kFragment_Visibility | |
131 GrGLProgramBuilder::kVertex_Visibility, | 129 GrGLProgramBuilder::kVertex_Visibility, |
132 kVec2f_GrSLType, "Offset"); | 130 kVec2f_GrSLType, "Offset"); |
133 fInvZoomVar = builder->addUniform( | 131 fInvZoomVar = builder->addUniform( |
134 GrGLProgramBuilder::kFragment_Visibility | | 132 GrGLProgramBuilder::kFragment_Visibility | |
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365 | 363 |
366 int x_val = SkPin32(SkScalarFloorToInt(x_interp), 0, width - 1); | 364 int x_val = SkPin32(SkScalarFloorToInt(x_interp), 0, width - 1); |
367 int y_val = SkPin32(SkScalarFloorToInt(y_interp), 0, height - 1); | 365 int y_val = SkPin32(SkScalarFloorToInt(y_interp), 0, height - 1); |
368 | 366 |
369 *dptr = sptr[y_val * width + x_val]; | 367 *dptr = sptr[y_val * width + x_val]; |
370 dptr++; | 368 dptr++; |
371 } | 369 } |
372 } | 370 } |
373 return true; | 371 return true; |
374 } | 372 } |
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