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Side by Side Diff: src/gpu/GrPathProcessor.cpp

Issue 1416423003: Make GrGLSLProgramBuilder base class for ProgramBuilder (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: nit Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright 2013 Google Inc. 2 * Copyright 2013 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 "GrPathProcessor.h" 8 #include "GrPathProcessor.h"
9 9
10 #include "gl/GrGLGpu.h" 10 #include "gl/GrGLGpu.h"
11 #include "glsl/GrGLSLCaps.h" 11 #include "glsl/GrGLSLCaps.h"
12 #include "glsl/GrGLSLProcessorTypes.h" 12 #include "glsl/GrGLSLProcessorTypes.h"
13 13
14 class GrGLPathProcessor : public GrGLPrimitiveProcessor { 14 class GrGLPathProcessor : public GrGLPrimitiveProcessor {
15 public: 15 public:
16 GrGLPathProcessor() : fColor(GrColor_ILLEGAL) {} 16 GrGLPathProcessor() : fColor(GrColor_ILLEGAL) {}
17 17
18 static void GenKey(const GrPathProcessor& pathProc, 18 static void GenKey(const GrPathProcessor& pathProc,
19 const GrGLSLCaps&, 19 const GrGLSLCaps&,
20 GrProcessorKeyBuilder* b) { 20 GrProcessorKeyBuilder* b) {
21 b->add32(SkToInt(pathProc.opts().readsColor()) | 21 b->add32(SkToInt(pathProc.opts().readsColor()) |
22 SkToInt(pathProc.opts().readsCoverage()) << 16); 22 SkToInt(pathProc.opts().readsCoverage()) << 16);
23 } 23 }
24 24
25 void emitCode(EmitArgs& args) override { 25 void emitCode(EmitArgs& args) override {
26 GrGLGPBuilder* pb = args.fPB; 26 GrGLSLGPBuilder* pb = args.fPB;
27 GrGLFragmentBuilder* fs = args.fPB->getFragmentShaderBuilder(); 27 GrGLFragmentBuilder* fs = args.fPB->getFragmentShaderBuilder();
28 const GrPathProcessor& pathProc = args.fGP.cast<GrPathProcessor>(); 28 const GrPathProcessor& pathProc = args.fGP.cast<GrPathProcessor>();
29 29
30 // emit transforms 30 // emit transforms
31 this->emitTransforms(args.fPB, args.fTransformsIn, args.fTransformsOut); 31 this->emitTransforms(args.fPB, args.fTransformsIn, args.fTransformsOut);
32 32
33 // Setup uniform color 33 // Setup uniform color
34 if (pathProc.opts().readsColor()) { 34 if (pathProc.opts().readsColor()) {
35 const char* stagedLocalVarName; 35 const char* stagedLocalVarName;
36 fColorUniform = pb->addUniform(GrGLProgramBuilder::kFragment_Visibil ity, 36 fColorUniform = pb->addUniform(GrGLProgramBuilder::kFragment_Visibil ity,
37 kVec4f_GrSLType, 37 kVec4f_GrSLType,
38 kDefault_GrSLPrecision, 38 kDefault_GrSLPrecision,
39 "Color", 39 "Color",
40 &stagedLocalVarName); 40 &stagedLocalVarName);
41 fs->codeAppendf("%s = %s;", args.fOutputColor, stagedLocalVarName); 41 fs->codeAppendf("%s = %s;", args.fOutputColor, stagedLocalVarName);
42 } 42 }
43 43
44 // setup constant solid coverage 44 // setup constant solid coverage
45 if (pathProc.opts().readsCoverage()) { 45 if (pathProc.opts().readsCoverage()) {
46 fs->codeAppendf("%s = vec4(1);", args.fOutputCoverage); 46 fs->codeAppendf("%s = vec4(1);", args.fOutputCoverage);
47 } 47 }
48 } 48 }
49 49
50 void emitTransforms(GrGLGPBuilder* pb, const TransformsIn& tin, TransformsOu t* tout) { 50 void emitTransforms(GrGLSLGPBuilder* pb, const TransformsIn& tin, Transforms Out* tout) {
51 tout->push_back_n(tin.count()); 51 tout->push_back_n(tin.count());
52 fInstalledTransforms.push_back_n(tin.count()); 52 fInstalledTransforms.push_back_n(tin.count());
53 for (int i = 0; i < tin.count(); i++) { 53 for (int i = 0; i < tin.count(); i++) {
54 const ProcCoords& coordTransforms = tin[i]; 54 const ProcCoords& coordTransforms = tin[i];
55 fInstalledTransforms[i].push_back_n(coordTransforms.count()); 55 fInstalledTransforms[i].push_back_n(coordTransforms.count());
56 for (int t = 0; t < coordTransforms.count(); t++) { 56 for (int t = 0; t < coordTransforms.count(); t++) {
57 GrSLType varyingType = 57 GrSLType varyingType =
58 coordTransforms[t]->getMatrix().hasPerspective() ? kVec3 f_GrSLType : 58 coordTransforms[t]->getMatrix().hasPerspective() ? kVec3 f_GrSLType :
59 kVec2 f_GrSLType; 59 kVec2 f_GrSLType;
60 60
61 SkString strVaryingName("MatrixCoord"); 61 SkString strVaryingName("MatrixCoord");
62 strVaryingName.appendf("_%i_%i", i, t); 62 strVaryingName.appendf("_%i_%i", i, t);
63 GrGLVertToFrag v(varyingType); 63 GrGLSLVertToFrag v(varyingType);
64 fInstalledTransforms[i][t].fHandle = 64 fInstalledTransforms[i][t].fHandle =
65 pb->addSeparableVarying(strVaryingName.c_str(), &v).toIn dex(); 65 pb->addSeparableVarying(strVaryingName.c_str(), &v).toIn dex();
66 fInstalledTransforms[i][t].fType = varyingType; 66 fInstalledTransforms[i][t].fType = varyingType;
67 67
68 SkNEW_APPEND_TO_TARRAY(&(*tout)[i], GrGLSLTransformedCoords, 68 SkNEW_APPEND_TO_TARRAY(&(*tout)[i], GrGLSLTransformedCoords,
69 (SkString(v.fsIn()), varyingType)); 69 (SkString(v.fsIn()), varyingType));
70 } 70 }
71 } 71 }
72 } 72 }
73 73
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126 126
127 void GrPathProcessor::getGLProcessorKey(const GrGLSLCaps& caps, 127 void GrPathProcessor::getGLProcessorKey(const GrGLSLCaps& caps,
128 GrProcessorKeyBuilder* b) const { 128 GrProcessorKeyBuilder* b) const {
129 GrGLPathProcessor::GenKey(*this, caps, b); 129 GrGLPathProcessor::GenKey(*this, caps, b);
130 } 130 }
131 131
132 GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrGLSLCaps& caps ) const { 132 GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrGLSLCaps& caps ) const {
133 SkASSERT(caps.pathRenderingSupport()); 133 SkASSERT(caps.pathRenderingSupport());
134 return new GrGLPathProcessor(); 134 return new GrGLPathProcessor();
135 } 135 }
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