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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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| 82 float fYOffset; | 82 float fYOffset; |
| 83 float fXInvZoom; | 83 float fXInvZoom; |
| 84 float fYInvZoom; | 84 float fYInvZoom; |
| 85 float fXInvInset; | 85 float fXInvInset; |
| 86 float fYInvInset; | 86 float fYInvInset; |
| 87 | 87 |
| 88 typedef GrSingleTextureEffect INHERITED; | 88 typedef GrSingleTextureEffect INHERITED; |
| 89 }; | 89 }; |
| 90 | 90 |
| 91 // For brevity | 91 // For brevity |
| 92 typedef GrGLUniformManager::UniformHandle UniformHandle; | 92 typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
| 93 | 93 |
| 94 class GrGLMagnifierEffect : public GrGLEffect { | 94 class GrGLMagnifierEffect : public GrGLEffect { |
| 95 public: | 95 public: |
| 96 GrGLMagnifierEffect(const GrBackendEffectFactory&, const GrDrawEffect&); | 96 GrGLMagnifierEffect(const GrBackendEffectFactory&, const GrDrawEffect&); |
| 97 | 97 |
| 98 virtual void emitCode(GrGLShaderBuilder*, | 98 virtual void emitCode(GrGLShaderBuilder*, |
| 99 const GrDrawEffect&, | 99 const GrDrawEffect&, |
| 100 const GrEffectKey&, | 100 const GrEffectKey&, |
| 101 const char* outputColor, | 101 const char* outputColor, |
| 102 const char* inputColor, | 102 const char* inputColor, |
| 103 const TransformedCoordsArray&, | 103 const TransformedCoordsArray&, |
| 104 const TextureSamplerArray&) SK_OVERRIDE; | 104 const TextureSamplerArray&) SK_OVERRIDE; |
| 105 | 105 |
| 106 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; | 106 virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_
OVERRIDE; |
| 107 | 107 |
| 108 private: | 108 private: |
| 109 UniformHandle fOffsetVar; | 109 UniformHandle fOffsetVar; |
| 110 UniformHandle fInvZoomVar; | 110 UniformHandle fInvZoomVar; |
| 111 UniformHandle fInvInsetVar; | 111 UniformHandle fInvInsetVar; |
| 112 | 112 |
| 113 typedef GrGLEffect INHERITED; | 113 typedef GrGLEffect INHERITED; |
| 114 }; | 114 }; |
| 115 | 115 |
| 116 GrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendEffectFactory& factory,
const GrDrawEffect&) | 116 GrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendEffectFactory& factory,
const GrDrawEffect&) |
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| 163 builder->fsCodeAppend("\t\tvec4 output_color = "); | 163 builder->fsCodeAppend("\t\tvec4 output_color = "); |
| 164 builder->fsAppendTextureLookup(samplers[0], "mix_coord"); | 164 builder->fsAppendTextureLookup(samplers[0], "mix_coord"); |
| 165 builder->fsCodeAppend(";\n"); | 165 builder->fsCodeAppend(";\n"); |
| 166 | 166 |
| 167 builder->fsCodeAppendf("\t\t%s = output_color;", outputColor); | 167 builder->fsCodeAppendf("\t\t%s = output_color;", outputColor); |
| 168 SkString modulate; | 168 SkString modulate; |
| 169 GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); | 169 GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); |
| 170 builder->fsCodeAppend(modulate.c_str()); | 170 builder->fsCodeAppend(modulate.c_str()); |
| 171 } | 171 } |
| 172 | 172 |
| 173 void GrGLMagnifierEffect::setData(const GrGLUniformManager& uman, | 173 void GrGLMagnifierEffect::setData(const GrGLProgramDataManager& pdman, |
| 174 const GrDrawEffect& drawEffect) { | 174 const GrDrawEffect& drawEffect) { |
| 175 const GrMagnifierEffect& zoom = drawEffect.castEffect<GrMagnifierEffect>(); | 175 const GrMagnifierEffect& zoom = drawEffect.castEffect<GrMagnifierEffect>(); |
| 176 uman.set2f(fOffsetVar, zoom.x_offset(), zoom.y_offset()); | 176 pdman.set2f(fOffsetVar, zoom.x_offset(), zoom.y_offset()); |
| 177 uman.set2f(fInvZoomVar, zoom.x_inv_zoom(), zoom.y_inv_zoom()); | 177 pdman.set2f(fInvZoomVar, zoom.x_inv_zoom(), zoom.y_inv_zoom()); |
| 178 uman.set2f(fInvInsetVar, zoom.x_inv_inset(), zoom.y_inv_inset()); | 178 pdman.set2f(fInvInsetVar, zoom.x_inv_inset(), zoom.y_inv_inset()); |
| 179 } | 179 } |
| 180 | 180 |
| 181 ///////////////////////////////////////////////////////////////////// | 181 ///////////////////////////////////////////////////////////////////// |
| 182 | 182 |
| 183 GR_DEFINE_EFFECT_TEST(GrMagnifierEffect); | 183 GR_DEFINE_EFFECT_TEST(GrMagnifierEffect); |
| 184 | 184 |
| 185 GrEffect* GrMagnifierEffect::TestCreate(SkRandom* random, | 185 GrEffect* GrMagnifierEffect::TestCreate(SkRandom* random, |
| 186 GrContext* context, | 186 GrContext* context, |
| 187 const GrDrawTargetCaps&, | 187 const GrDrawTargetCaps&, |
| 188 GrTexture** textures) { | 188 GrTexture** textures) { |
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| 342 | 342 |
| 343 int x_val = SkPin32(SkScalarFloorToInt(x_interp), 0, width - 1); | 343 int x_val = SkPin32(SkScalarFloorToInt(x_interp), 0, width - 1); |
| 344 int y_val = SkPin32(SkScalarFloorToInt(y_interp), 0, height - 1); | 344 int y_val = SkPin32(SkScalarFloorToInt(y_interp), 0, height - 1); |
| 345 | 345 |
| 346 *dptr = sptr[y_val * width + x_val]; | 346 *dptr = sptr[y_val * width + x_val]; |
| 347 dptr++; | 347 dptr++; |
| 348 } | 348 } |
| 349 } | 349 } |
| 350 return true; | 350 return true; |
| 351 } | 351 } |
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