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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 #include "SkColorCubeFilter.h" | 8 #include "SkColorCubeFilter.h" |
| 9 #include "SkColorPriv.h" | 9 #include "SkColorPriv.h" |
| 10 #include "SkOnce.h" | 10 #include "SkOnce.h" |
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| 205 | 205 |
| 206 static const char* Name() { return "ColorProfile"; } | 206 static const char* Name() { return "ColorProfile"; } |
| 207 | 207 |
| 208 virtual void onComputeInvariantOutput(GrProcessor::InvariantOutput*) const S
K_OVERRIDE; | 208 virtual void onComputeInvariantOutput(GrProcessor::InvariantOutput*) const S
K_OVERRIDE; |
| 209 | 209 |
| 210 class GLProcessor : public GrGLFragmentProcessor { | 210 class GLProcessor : public GrGLFragmentProcessor { |
| 211 public: | 211 public: |
| 212 GLProcessor(const GrBackendProcessorFactory& factory, const GrProcessor&
); | 212 GLProcessor(const GrBackendProcessorFactory& factory, const GrProcessor&
); |
| 213 virtual ~GLProcessor(); | 213 virtual ~GLProcessor(); |
| 214 | 214 |
| 215 virtual void emitCode(GrGLProgramBuilder*, | 215 virtual void emitCode(GrGLFPBuilder*, |
| 216 const GrFragmentProcessor&, | 216 const GrFragmentProcessor&, |
| 217 const GrProcessorKey&, | 217 const GrProcessorKey&, |
| 218 const char* outputColor, | 218 const char* outputColor, |
| 219 const char* inputColor, | 219 const char* inputColor, |
| 220 const TransformedCoordsArray&, | 220 const TransformedCoordsArray&, |
| 221 const TextureSamplerArray&) SK_OVERRIDE; | 221 const TextureSamplerArray&) SK_OVERRIDE; |
| 222 | 222 |
| 223 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcess
orKeyBuilder*); | 223 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcess
orKeyBuilder*); |
| 224 | 224 |
| 225 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&)
SK_OVERRIDE; | 225 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&)
SK_OVERRIDE; |
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| 271 /////////////////////////////////////////////////////////////////////////////// | 271 /////////////////////////////////////////////////////////////////////////////// |
| 272 | 272 |
| 273 GrColorProfileEffect::GLProcessor::GLProcessor(const GrBackendProcessorFactory&
factory, | 273 GrColorProfileEffect::GLProcessor::GLProcessor(const GrBackendProcessorFactory&
factory, |
| 274 const GrProcessor&) | 274 const GrProcessor&) |
| 275 : INHERITED(factory) { | 275 : INHERITED(factory) { |
| 276 } | 276 } |
| 277 | 277 |
| 278 GrColorProfileEffect::GLProcessor::~GLProcessor() { | 278 GrColorProfileEffect::GLProcessor::~GLProcessor() { |
| 279 } | 279 } |
| 280 | 280 |
| 281 void GrColorProfileEffect::GLProcessor::emitCode(GrGLProgramBuilder* builder, | 281 void GrColorProfileEffect::GLProcessor::emitCode(GrGLFPBuilder* builder, |
| 282 const GrFragmentProcessor&, | 282 const GrFragmentProcessor&, |
| 283 const GrProcessorKey&, | 283 const GrProcessorKey&, |
| 284 const char* outputColor, | 284 const char* outputColor, |
| 285 const char* inputColor, | 285 const char* inputColor, |
| 286 const TransformedCoordsArray& c
oords, | 286 const TransformedCoordsArray& c
oords, |
| 287 const TextureSamplerArray& samp
lers) { | 287 const TextureSamplerArray& samp
lers) { |
| 288 if (NULL == inputColor) { | 288 if (NULL == inputColor) { |
| 289 inputColor = "vec4(1)"; | 289 inputColor = "vec4(1)"; |
| 290 } | 290 } |
| 291 | 291 |
| 292 fColorCubeSizeUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibi
lity, | 292 fColorCubeSizeUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibi
lity, |
| 293 kFloat_GrSLType, "Size"); | 293 kFloat_GrSLType, "Size"); |
| 294 const char* colorCubeSizeUni = builder->getUniformCStr(fColorCubeSizeUni); | 294 const char* colorCubeSizeUni = builder->getUniformCStr(fColorCubeSizeUni); |
| 295 fColorCubeInvSizeUni = builder->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, | 295 fColorCubeInvSizeUni = builder->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, |
| 296 kFloat_GrSLType, "InvSize"); | 296 kFloat_GrSLType, "InvSize"); |
| 297 const char* colorCubeInvSizeUni = builder->getUniformCStr(fColorCubeInvSizeU
ni); | 297 const char* colorCubeInvSizeUni = builder->getUniformCStr(fColorCubeInvSizeU
ni); |
| 298 | 298 |
| 299 const char* nonZeroAlpha = "nonZeroAlpha"; | 299 const char* nonZeroAlpha = "nonZeroAlpha"; |
| 300 const char* unPMColor = "unPMColor"; | 300 const char* unPMColor = "unPMColor"; |
| 301 const char* cubeIdx = "cubeIdx"; | 301 const char* cubeIdx = "cubeIdx"; |
| 302 const char* cCoords1 = "cCoords1"; | 302 const char* cCoords1 = "cCoords1"; |
| 303 const char* cCoords2 = "cCoords2"; | 303 const char* cCoords2 = "cCoords2"; |
| 304 | 304 |
| 305 // Note: if implemented using texture3D in OpenGL ES older than OpenGL ES 3.
0, | 305 // Note: if implemented using texture3D in OpenGL ES older than OpenGL ES 3.
0, |
| 306 // the shader might need "#extension GL_OES_texture_3D : enable". | 306 // the shader might need "#extension GL_OES_texture_3D : enable". |
| 307 | 307 |
| 308 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder(); | 308 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 309 | 309 |
| 310 // Unpremultiply color | 310 // Unpremultiply color |
| 311 fsBuilder->codeAppendf("\tfloat %s = max(%s.a, 0.00001);\n", nonZeroAlpha, i
nputColor); | 311 fsBuilder->codeAppendf("\tfloat %s = max(%s.a, 0.00001);\n", nonZeroAlpha, i
nputColor); |
| 312 fsBuilder->codeAppendf("\tvec4 %s = vec4(%s.rgb / %s, %s);\n", | 312 fsBuilder->codeAppendf("\tvec4 %s = vec4(%s.rgb / %s, %s);\n", |
| 313 unPMColor, inputColor, nonZeroAlpha, nonZeroAlpha); | 313 unPMColor, inputColor, nonZeroAlpha, nonZeroAlpha); |
| 314 | 314 |
| 315 // Fit input color into the cube. | 315 // Fit input color into the cube. |
| 316 fsBuilder->codeAppendf( | 316 fsBuilder->codeAppendf( |
| 317 "vec3 %s = vec3(%s.rg * vec2((%s - 1.0) * %s) + vec2(0.5 * %s), %s.b * (
%s - 1.0));\n", | 317 "vec3 %s = vec3(%s.rg * vec2((%s - 1.0) * %s) + vec2(0.5 * %s), %s.b * (
%s - 1.0));\n", |
| 318 cubeIdx, unPMColor, colorCubeSizeUni, colorCubeInvSizeUni, colorCubeInvS
izeUni, | 318 cubeIdx, unPMColor, colorCubeSizeUni, colorCubeInvSizeUni, colorCubeInvS
izeUni, |
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| 366 static_cast<GrTexture*>(context->findAndRefCachedResource( | 366 static_cast<GrTexture*>(context->findAndRefCachedResource( |
| 367 GrTexturePriv::ComputeKey(context->getGpu(), NULL, desc, cacheID))))
; | 367 GrTexturePriv::ComputeKey(context->getGpu(), NULL, desc, cacheID))))
; |
| 368 | 368 |
| 369 if (!textureCube) { | 369 if (!textureCube) { |
| 370 textureCube.reset(context->createTexture(NULL, desc, cacheID, fCubeData-
>data(), 0)); | 370 textureCube.reset(context->createTexture(NULL, desc, cacheID, fCubeData-
>data(), 0)); |
| 371 } | 371 } |
| 372 | 372 |
| 373 return textureCube ? GrColorProfileEffect::Create(textureCube) : NULL; | 373 return textureCube ? GrColorProfileEffect::Create(textureCube) : NULL; |
| 374 } | 374 } |
| 375 #endif | 375 #endif |
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