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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 "GrGLPrimitiveProcessor.h" | 8 #include "GrGLSLPrimitiveProcessor.h" |
| 9 | 9 |
| 10 #include "glsl/GrGLSLProgramBuilder.h" | 10 #include "glsl/GrGLSLProgramBuilder.h" |
| 11 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 11 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 12 | 12 |
| 13 SkMatrix GrGLPrimitiveProcessor::GetTransformMatrix(const SkMatrix& localMatrix, | 13 SkMatrix GrGLSLPrimitiveProcessor::GetTransformMatrix(const SkMatrix& localMatri
x, |
| 14 const GrCoordTransform& coor
dTransform) { | 14 const GrCoordTransform& co
ordTransform) { |
| 15 SkMatrix combined; | 15 SkMatrix combined; |
| 16 // We only apply the localmatrix to localcoords | 16 // We only apply the localmatrix to localcoords |
| 17 if (kLocal_GrCoordSet == coordTransform.sourceCoords()) { | 17 if (kLocal_GrCoordSet == coordTransform.sourceCoords()) { |
| 18 combined.setConcat(coordTransform.getMatrix(), localMatrix); | 18 combined.setConcat(coordTransform.getMatrix(), localMatrix); |
| 19 } else { | 19 } else { |
| 20 combined = coordTransform.getMatrix(); | 20 combined = coordTransform.getMatrix(); |
| 21 } | 21 } |
| 22 if (coordTransform.reverseY()) { | 22 if (coordTransform.reverseY()) { |
| 23 // combined.postScale(1,-1); | 23 // combined.postScale(1,-1); |
| 24 // combined.postTranslate(0,1); | 24 // combined.postTranslate(0,1); |
| 25 combined.set(SkMatrix::kMSkewY, | 25 combined.set(SkMatrix::kMSkewY, |
| 26 combined[SkMatrix::kMPersp0] - combined[SkMatrix::kMSkewY]); | 26 combined[SkMatrix::kMPersp0] - combined[SkMatrix::kMSkewY]); |
| 27 combined.set(SkMatrix::kMScaleY, | 27 combined.set(SkMatrix::kMScaleY, |
| 28 combined[SkMatrix::kMPersp1] - combined[SkMatrix::kMScaleY]); | 28 combined[SkMatrix::kMPersp1] - combined[SkMatrix::kMScaleY]); |
| 29 combined.set(SkMatrix::kMTransY, | 29 combined.set(SkMatrix::kMTransY, |
| 30 combined[SkMatrix::kMPersp2] - combined[SkMatrix::kMTransY]); | 30 combined[SkMatrix::kMPersp2] - combined[SkMatrix::kMTransY]); |
| 31 } | 31 } |
| 32 return combined; | 32 return combined; |
| 33 } | 33 } |
| 34 | 34 |
| 35 void GrGLPrimitiveProcessor::setupUniformColor(GrGLSLGPBuilder* pb, | 35 void GrGLSLPrimitiveProcessor::setupUniformColor(GrGLSLGPBuilder* pb, |
| 36 const char* outputName, | 36 const char* outputName, |
| 37 UniformHandle* colorUniform) { | 37 UniformHandle* colorUniform) { |
| 38 GrGLSLFragmentBuilder* fs = pb->getFragmentShaderBuilder(); | 38 GrGLSLFragmentBuilder* fs = pb->getFragmentShaderBuilder(); |
| 39 SkASSERT(colorUniform); | 39 SkASSERT(colorUniform); |
| 40 const char* stagedLocalVarName; | 40 const char* stagedLocalVarName; |
| 41 *colorUniform = pb->addUniform(GrGLSLProgramBuilder::kFragment_Visibility, | 41 *colorUniform = pb->addUniform(GrGLSLProgramBuilder::kFragment_Visibility, |
| 42 kVec4f_GrSLType, | 42 kVec4f_GrSLType, |
| 43 kDefault_GrSLPrecision, | 43 kDefault_GrSLPrecision, |
| 44 "Color", | 44 "Color", |
| 45 &stagedLocalVarName); | 45 &stagedLocalVarName); |
| 46 fs->codeAppendf("%s = %s;", outputName, stagedLocalVarName); | 46 fs->codeAppendf("%s = %s;", outputName, stagedLocalVarName); |
| 47 } | 47 } |
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