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| 1 /* | 1 /* |
| 2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 "GrConvolutionEffect.h" | 8 #include "GrConvolutionEffect.h" |
| 9 #include "gl/GrGLFragmentProcessor.h" | 9 #include "gl/GrGLFragmentProcessor.h" |
| 10 #include "gl/GrGLTexture.h" | 10 #include "gl/GrGLTexture.h" |
| (...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 58 fKernelUni = args.fBuilder->addUniformArray(GrGLProgramBuilder::kFragment_Vi
sibility, | 58 fKernelUni = args.fBuilder->addUniformArray(GrGLProgramBuilder::kFragment_Vi
sibility, |
| 59 kFloat_GrSLType, kDefault_GrSLPrecisio
n, | 59 kFloat_GrSLType, kDefault_GrSLPrecisio
n, |
| 60 "Kernel", this->width()); | 60 "Kernel", this->width()); |
| 61 | 61 |
| 62 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); | 62 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 63 SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0); | 63 SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
| 64 | 64 |
| 65 fsBuilder->codeAppendf("\t\t%s = vec4(0, 0, 0, 0);\n", args.fOutputColor); | 65 fsBuilder->codeAppendf("\t\t%s = vec4(0, 0, 0, 0);\n", args.fOutputColor); |
| 66 | 66 |
| 67 int width = this->width(); | 67 int width = this->width(); |
| 68 const GrGLShaderVar& kernel = args.fBuilder->getUniformVariable(fKernelUni); | 68 const GrGLSLShaderVar& kernel = args.fBuilder->getUniformVariable(fKernelUni
); |
| 69 const char* imgInc = args.fBuilder->getUniformCStr(fImageIncrementUni); | 69 const char* imgInc = args.fBuilder->getUniformCStr(fImageIncrementUni); |
| 70 | 70 |
| 71 fsBuilder->codeAppendf("\t\tvec2 coord = %s - %d.0 * %s;\n", coords2D.c_str(
), fRadius, imgInc); | 71 fsBuilder->codeAppendf("\t\tvec2 coord = %s - %d.0 * %s;\n", coords2D.c_str(
), fRadius, imgInc); |
| 72 | 72 |
| 73 // Manually unroll loop because some drivers don't; yields 20-30% speedup. | 73 // Manually unroll loop because some drivers don't; yields 20-30% speedup. |
| 74 for (int i = 0; i < width; i++) { | 74 for (int i = 0; i < width; i++) { |
| 75 SkString index; | 75 SkString index; |
| 76 SkString kernelIndex; | 76 SkString kernelIndex; |
| 77 index.appendS32(i); | 77 index.appendS32(i); |
| 78 kernel.appendArrayAccess(index.c_str(), &kernelIndex); | 78 kernel.appendArrayAccess(index.c_str(), &kernelIndex); |
| (...skipping 151 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 230 } | 230 } |
| 231 | 231 |
| 232 bool useBounds = d->fRandom->nextBool(); | 232 bool useBounds = d->fRandom->nextBool(); |
| 233 return GrConvolutionEffect::Create(d->fTextures[texIdx], | 233 return GrConvolutionEffect::Create(d->fTextures[texIdx], |
| 234 dir, | 234 dir, |
| 235 radius, | 235 radius, |
| 236 kernel, | 236 kernel, |
| 237 useBounds, | 237 useBounds, |
| 238 bounds); | 238 bounds); |
| 239 } | 239 } |
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