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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 "GrGLGeometryProcessor.h" | 8 #include "GrGLGeometryProcessor.h" |
9 | 9 |
10 #include "builders/GrGLProgramBuilder.h" | 10 #include "builders/GrGLProgramBuilder.h" |
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82 if (kVec2f_GrSLType == varyingType) { | 82 if (kVec2f_GrSLType == varyingType) { |
83 vb->codeAppendf("%s = (%s * vec3(%s, 1)).xy;", v.vsOut(), un
iName, localCoords); | 83 vb->codeAppendf("%s = (%s * vec3(%s, 1)).xy;", v.vsOut(), un
iName, localCoords); |
84 } else { | 84 } else { |
85 vb->codeAppendf("%s = %s * vec3(%s, 1);", v.vsOut(), uniName
, localCoords); | 85 vb->codeAppendf("%s = %s * vec3(%s, 1);", v.vsOut(), uniName
, localCoords); |
86 } | 86 } |
87 } | 87 } |
88 } | 88 } |
89 } | 89 } |
90 } | 90 } |
91 | 91 |
| 92 void GrGLGeometryProcessor::emitTransforms(GrGLGPBuilder* pb, |
| 93 const char* localCoords, |
| 94 const TransformsIn& tin, |
| 95 TransformsOut* tout) { |
| 96 GrGLVertexBuilder* vb = pb->getVertexShaderBuilder(); |
| 97 tout->push_back_n(tin.count()); |
| 98 for (int i = 0; i < tin.count(); i++) { |
| 99 const ProcCoords& coordTransforms = tin[i]; |
| 100 for (int t = 0; t < coordTransforms.count(); t++) { |
| 101 GrSLType varyingType = kVec2f_GrSLType; |
| 102 |
| 103 // Device coords aren't supported |
| 104 SkASSERT(kDevice_GrCoordSet != coordTransforms[t]->sourceCoords()); |
| 105 GrSLPrecision precision = coordTransforms[t]->precision(); |
| 106 |
| 107 SkString strVaryingName("MatrixCoord"); |
| 108 strVaryingName.appendf("_%i_%i", i, t); |
| 109 |
| 110 GrGLVertToFrag v(varyingType); |
| 111 pb->addVarying(strVaryingName.c_str(), &v, precision); |
| 112 vb->codeAppendf("%s = %s;", v.vsOut(), localCoords); |
| 113 |
| 114 SkNEW_APPEND_TO_TARRAY(&(*tout)[i], |
| 115 GrGLProcessor::TransformedCoords, |
| 116 (SkString(v.fsIn()), varyingType)); |
| 117 } |
| 118 } |
| 119 } |
| 120 |
92 void GrGLGeometryProcessor::setupPosition(GrGLGPBuilder* pb, | 121 void GrGLGeometryProcessor::setupPosition(GrGLGPBuilder* pb, |
93 GrGPArgs* gpArgs, | 122 GrGPArgs* gpArgs, |
94 const char* posName) { | 123 const char* posName) { |
95 GrGLVertexBuilder* vsBuilder = pb->getVertexShaderBuilder(); | 124 GrGLVertexBuilder* vsBuilder = pb->getVertexShaderBuilder(); |
96 gpArgs->fPositionVar.set(kVec2f_GrSLType, "pos2"); | 125 gpArgs->fPositionVar.set(kVec2f_GrSLType, "pos2"); |
97 vsBuilder->codeAppendf("vec2 %s = %s;", gpArgs->fPositionVar.c_str(), posNam
e); | 126 vsBuilder->codeAppendf("vec2 %s = %s;", gpArgs->fPositionVar.c_str(), posNam
e); |
98 } | 127 } |
99 | 128 |
100 void GrGLGeometryProcessor::setupPosition(GrGLGPBuilder* pb, | 129 void GrGLGeometryProcessor::setupPosition(GrGLGPBuilder* pb, |
101 GrGPArgs* gpArgs, | 130 GrGPArgs* gpArgs, |
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116 gpArgs->fPositionVar.set(kVec2f_GrSLType, "pos2"); | 145 gpArgs->fPositionVar.set(kVec2f_GrSLType, "pos2"); |
117 vsBuilder->codeAppendf("vec2 %s = vec2(%s * vec3(%s, 1));", | 146 vsBuilder->codeAppendf("vec2 %s = vec2(%s * vec3(%s, 1));", |
118 gpArgs->fPositionVar.c_str(), viewMatrixName,
posName); | 147 gpArgs->fPositionVar.c_str(), viewMatrixName,
posName); |
119 } else { | 148 } else { |
120 gpArgs->fPositionVar.set(kVec3f_GrSLType, "pos3"); | 149 gpArgs->fPositionVar.set(kVec3f_GrSLType, "pos3"); |
121 vsBuilder->codeAppendf("vec3 %s = %s * vec3(%s, 1);", | 150 vsBuilder->codeAppendf("vec3 %s = %s * vec3(%s, 1);", |
122 gpArgs->fPositionVar.c_str(), viewMatrixName,
posName); | 151 gpArgs->fPositionVar.c_str(), viewMatrixName,
posName); |
123 } | 152 } |
124 } | 153 } |
125 } | 154 } |
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