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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "SkMatrix.h" | 8 #include "SkMatrix.h" |
9 #include "SkPoint.h" | 9 #include "SkPoint.h" |
10 #include "SkString.h" | 10 #include "SkString.h" |
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117 vshaderTxt.append(";\n"); | 117 vshaderTxt.append(";\n"); |
118 | 118 |
119 vshaderTxt.append( | 119 vshaderTxt.append( |
120 "void main()\n" | 120 "void main()\n" |
121 "{\n" | 121 "{\n" |
122 " gl_Position = vec4(a_position, 0.0, 1.0);\n" | 122 " gl_Position = vec4(a_position, 0.0, 1.0);\n" |
123 " o_position = a_position;\n" | 123 " o_position = a_position;\n" |
124 " o_color = a_color;\n" | 124 " o_color = a_color;\n" |
125 "}\n"); | 125 "}\n"); |
126 | 126 |
| 127 const GrGLInterface* gl = ctx->interface(); |
| 128 |
127 // set up fragment shader; this fragment shader will have fNumStages coverag
e stages plus an | 129 // set up fragment shader; this fragment shader will have fNumStages coverag
e stages plus an |
128 // XP stage at the end. Each coverage stage computes the pixel's distance f
rom some hard- | 130 // XP stage at the end. Each coverage stage computes the pixel's distance f
rom some hard- |
129 // coded center and compare that to some hard-coded circle radius to compute
a coverage. | 131 // coded center and compare that to some hard-coded circle radius to compute
a coverage. |
130 // Then, this coverage is mixed with the coverage from the previous stage an
d passed to the | 132 // Then, this coverage is mixed with the coverage from the previous stage an
d passed to the |
131 // next stage. | 133 // next stage. |
132 GrGLSLShaderVar oFragColor("o_FragColor", kVec4f_GrSLType, GrShaderVar::kOut
_TypeModifier); | 134 GrGLSLShaderVar oFragColor("o_FragColor", kVec4f_GrSLType, GrShaderVar::kOut
_TypeModifier); |
133 SkString fshaderTxt(version); | 135 SkString fshaderTxt(version); |
134 GrGLSLAppendDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, *glslCa
ps, &fshaderTxt); | 136 GrGLSLAppendDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, *glslCa
ps, &fshaderTxt); |
135 oPosition.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier); | 137 oPosition.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier); |
136 oPosition.appendDecl(glslCaps, &fshaderTxt); | 138 oPosition.appendDecl(glslCaps, &fshaderTxt); |
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177 ); | 179 ); |
178 radius *= 0.8f; | 180 radius *= 0.8f; |
179 } | 181 } |
180 fshaderTxt.appendf( | 182 fshaderTxt.appendf( |
181 " {\n" | 183 " {\n" |
182 " %s = outputColor * outputCoverage;\n" | 184 " %s = outputColor * outputCoverage;\n" |
183 " }\n" | 185 " }\n" |
184 "}\n", | 186 "}\n", |
185 fsOutName); | 187 fsOutName); |
186 | 188 |
187 return CreateProgram(ctx, vshaderTxt.c_str(), fshaderTxt.c_str()); | 189 return CreateProgram(gl, vshaderTxt.c_str(), fshaderTxt.c_str()); |
188 } | 190 } |
189 | 191 |
190 template<typename Func> | 192 template<typename Func> |
191 static void setup_matrices(int numQuads, Func f) { | 193 static void setup_matrices(int numQuads, Func f) { |
192 // We draw a really small triangle so we are not fill rate limited | 194 // We draw a really small triangle so we are not fill rate limited |
193 for (int i = 0 ; i < numQuads; i++) { | 195 for (int i = 0 ; i < numQuads; i++) { |
194 SkMatrix m = SkMatrix::I(); | 196 SkMatrix m = SkMatrix::I(); |
195 m.setScale(0.01f, 0.01f); | 197 m.setScale(0.01f, 0.01f); |
196 f(m); | 198 f(m); |
197 } | 199 } |
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293 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 2) ) | 295 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 2) ) |
294 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 2) ) | 296 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 2) ) |
295 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 4) ) | 297 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 4) ) |
296 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 4) ) | 298 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 4) ) |
297 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 6) ) | 299 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 6) ) |
298 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 6) ) | 300 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 6) ) |
299 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 8) ) | 301 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSe
tup, 8) ) |
300 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 8) ) | 302 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetu
p, 8) ) |
301 | 303 |
302 #endif | 304 #endif |
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