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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 "gm.h" | 8 #include "gm.h" |
9 #if SK_SUPPORT_GPU | 9 #if SK_SUPPORT_GPU |
10 #include "GrFragmentProcessor.h" | 10 #include "GrFragmentProcessor.h" |
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58 public: | 58 public: |
59 DCFP(const SkMatrix& m) : fDeviceTransform(kDevice_GrCoordSet, m) { | 59 DCFP(const SkMatrix& m) : fDeviceTransform(kDevice_GrCoordSet, m) { |
60 this->addCoordTransform(&fDeviceTransform); | 60 this->addCoordTransform(&fDeviceTransform); |
61 this->initClassID<DCFP>(); | 61 this->initClassID<DCFP>(); |
62 } | 62 } |
63 | 63 |
64 GrGLSLFragmentProcessor* onCreateGLSLInstance() const override { | 64 GrGLSLFragmentProcessor* onCreateGLSLInstance() const override { |
65 class DCGLFP : public GrGLSLFragmentProcessor { | 65 class DCGLFP : public GrGLSLFragmentProcessor { |
66 void emitCode(EmitArgs& args) override { | 66 void emitCode(EmitArgs& args) override { |
67 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; | 67 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; |
68 fragBuilder->codeAppendf("vec2 c = %s;", | 68 SkString coords2d = fragBuilder->ensureCoords2D(args.fTransforme
dCoords[0]); |
69 fragBuilder->ensureFSCoords2D(args.fCoo
rds, 0).c_str()); | 69 fragBuilder->codeAppendf("vec2 c = %s;", coords2d.c_str()); |
70 fragBuilder->codeAppend("vec2 r = mod(c, vec2(20.0));"); | 70 fragBuilder->codeAppend("vec2 r = mod(c, vec2(20.0));"); |
71 fragBuilder->codeAppend("vec4 color = vec4(0.5*sin(c.x / 15.0) +
0.5," | 71 fragBuilder->codeAppend("vec4 color = vec4(0.5*sin(c.x / 15.0) +
0.5," |
72 "0.5*cos((c.x + c.y) / 15.
0) + 0.5," | 72 "0.5*cos((c.x + c.y) / 15.
0) + 0.5," |
73 "(r.x + r.y) / 20.0," | 73 "(r.x + r.y) / 20.0," |
74 "distance(r, vec2(15.0)) /
20.0 + 0.2);"); | 74 "distance(r, vec2(15.0)) /
20.0 + 0.2);"); |
75 fragBuilder->codeAppendf("color.rgb *= color.a;" | 75 fragBuilder->codeAppendf("color.rgb *= color.a;" |
76 "%s = color * %s;", | 76 "%s = color * %s;", |
77 args.fOutputColor, GrGLSLExpr4(args.fIn
putColor).c_str()); | 77 args.fOutputColor, GrGLSLExpr4(args.fIn
putColor).c_str()); |
78 } | 78 } |
79 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&)
override {} | 79 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&)
override {} |
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285 }; | 285 }; |
286 | 286 |
287 SkTArray<Prim*> fPrims; | 287 SkTArray<Prim*> fPrims; |
288 | 288 |
289 typedef GM INHERITED; | 289 typedef GM INHERITED; |
290 }; | 290 }; |
291 | 291 |
292 DEF_GM(return new DCShaderGM;) | 292 DEF_GM(return new DCShaderGM;) |
293 } | 293 } |
294 #endif | 294 #endif |
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