commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "GrBezierEffect.h" |
| 9 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 10 | #include "gl/builders/GrGLProgramBuilder.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 11 | #include "gl/GrGLProcessor.h" |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 12 | #include "gl/GrGLSL.h" |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 13 | #include "gl/GrGLGeometryProcessor.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 14 | #include "GrTBackendProcessorFactory.h" |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 15 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 16 | class GrGLConicEffect : public GrGLGeometryProcessor { |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 17 | public: |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 18 | GrGLConicEffect(const GrBackendProcessorFactory&, |
| 19 | const GrGeometryProcessor&, |
| 20 | const GrBatchTracker&); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 21 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 22 | virtual void emitCode(const EmitArgs&) SK_OVERRIDE; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 23 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 24 | static inline void GenKey(const GrGeometryProcessor&, |
| 25 | const GrBatchTracker&, |
| 26 | const GrGLCaps&, |
| 27 | GrProcessorKeyBuilder*); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 28 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 29 | virtual void setData(const GrGLProgramDataManager&, |
| 30 | const GrGeometryProcessor&, |
| 31 | const GrBatchTracker&) SK_OVERRIDE {} |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 32 | |
| 33 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 34 | GrPrimitiveEdgeType fEdgeType; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 35 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 36 | typedef GrGLGeometryProcessor INHERITED; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 37 | }; |
skia.committer@gmail.com | 44a77c8 | 2013-08-23 07:01:29 +0000 | [diff] [blame] | 38 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 39 | GrGLConicEffect::GrGLConicEffect(const GrBackendProcessorFactory& factory, |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 40 | const GrGeometryProcessor& processor, |
| 41 | const GrBatchTracker& bt) |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 42 | : INHERITED (factory) { |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 43 | const GrConicEffect& ce = processor.cast<GrConicEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 44 | fEdgeType = ce.getEdgeType(); |
| 45 | } |
| 46 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 47 | void GrGLConicEffect::emitCode(const EmitArgs& args) { |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 48 | GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
| 49 | const GrConicEffect& gp = args.fGP.cast<GrConicEffect>(); |
| 50 | |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 51 | GrGLVertToFrag v(kVec4f_GrSLType); |
| 52 | args.fPB->addVarying("ConicCoeffs", &v); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 53 | vsBuilder->codeAppendf("%s = %s;", v.vsOut(), gp.inConicCoeffs()->fName); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 54 | |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 55 | // setup coord outputs |
| 56 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), gp.inPosition()->fName); |
| 57 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), gp.inPosition()->fName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 58 | |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 59 | // setup position varying |
| 60 | vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(), vsBuilder->uViewM(), |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 61 | gp.inPosition()->fName); |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 62 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 63 | GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 64 | fsBuilder->codeAppend("float edgeAlpha;"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 65 | |
| 66 | switch (fEdgeType) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 67 | case kHairlineAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 68 | SkAssertResult(fsBuilder->enableFeature( |
| 69 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 70 | fsBuilder->codeAppendf("vec3 dklmdx = dFdx(%s.xyz);", v.fsIn()); |
| 71 | fsBuilder->codeAppendf("vec3 dklmdy = dFdy(%s.xyz);", v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 72 | fsBuilder->codeAppendf("float dfdx =" |
| 73 | "2.0 * %s.x * dklmdx.x - %s.y * dklmdx.z - %s.z * dklmdx.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 74 | v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 75 | fsBuilder->codeAppendf("float dfdy =" |
| 76 | "2.0 * %s.x * dklmdy.x - %s.y * dklmdy.z - %s.z * dklmdy.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 77 | v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 78 | fsBuilder->codeAppend("vec2 gF = vec2(dfdx, dfdy);"); |
| 79 | fsBuilder->codeAppend("float gFM = sqrt(dot(gF, gF));"); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 80 | fsBuilder->codeAppendf("float func = %s.x*%s.x - %s.y*%s.z;", v.fsIn(), v.fsIn(), |
| 81 | v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 82 | fsBuilder->codeAppend("func = abs(func);"); |
| 83 | fsBuilder->codeAppend("edgeAlpha = func / gFM;"); |
| 84 | fsBuilder->codeAppend("edgeAlpha = max(1.0 - edgeAlpha, 0.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 85 | // Add line below for smooth cubic ramp |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 86 | // fsBuilder->codeAppend("edgeAlpha = edgeAlpha*edgeAlpha*(3.0-2.0*edgeAlpha);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 87 | break; |
| 88 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 89 | case kFillAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 90 | SkAssertResult(fsBuilder->enableFeature( |
| 91 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 92 | fsBuilder->codeAppendf("vec3 dklmdx = dFdx(%s.xyz);", v.fsIn()); |
| 93 | fsBuilder->codeAppendf("vec3 dklmdy = dFdy(%s.xyz);", v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 94 | fsBuilder->codeAppendf("float dfdx =" |
| 95 | "2.0 * %s.x * dklmdx.x - %s.y * dklmdx.z - %s.z * dklmdx.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 96 | v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 97 | fsBuilder->codeAppendf("float dfdy =" |
| 98 | "2.0 * %s.x * dklmdy.x - %s.y * dklmdy.z - %s.z * dklmdy.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 99 | v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 100 | fsBuilder->codeAppend("vec2 gF = vec2(dfdx, dfdy);"); |
| 101 | fsBuilder->codeAppend("float gFM = sqrt(dot(gF, gF));"); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 102 | fsBuilder->codeAppendf("float func = %s.x * %s.x - %s.y * %s.z;", v.fsIn(), v.fsIn(), |
| 103 | v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 104 | fsBuilder->codeAppend("edgeAlpha = func / gFM;"); |
| 105 | fsBuilder->codeAppend("edgeAlpha = clamp(1.0 - edgeAlpha, 0.0, 1.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 106 | // Add line below for smooth cubic ramp |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 107 | // fsBuilder->codeAppend("edgeAlpha = edgeAlpha*edgeAlpha*(3.0-2.0*edgeAlpha);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 108 | break; |
| 109 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 110 | case kFillBW_GrProcessorEdgeType: { |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 111 | fsBuilder->codeAppendf("edgeAlpha = %s.x * %s.x - %s.y * %s.z;", v.fsIn(), v.fsIn(), |
| 112 | v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 113 | fsBuilder->codeAppend("edgeAlpha = float(edgeAlpha < 0.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 114 | break; |
| 115 | } |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 116 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 117 | SkFAIL("Shouldn't get here"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 118 | } |
| 119 | |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 120 | fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 121 | } |
| 122 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 123 | void GrGLConicEffect::GenKey(const GrGeometryProcessor& processor, |
| 124 | const GrBatchTracker&, |
| 125 | const GrGLCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 126 | GrProcessorKeyBuilder* b) { |
| 127 | const GrConicEffect& ce = processor.cast<GrConicEffect>(); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 128 | uint32_t key = ce.isAntiAliased() ? (ce.isFilled() ? 0x0 : 0x1) : 0x2; |
| 129 | b->add32(key); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | ////////////////////////////////////////////////////////////////////////////// |
| 133 | |
| 134 | GrConicEffect::~GrConicEffect() {} |
| 135 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 136 | const GrBackendGeometryProcessorFactory& GrConicEffect::getFactory() const { |
| 137 | return GrTBackendGeometryProcessorFactory<GrConicEffect>::getInstance(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 138 | } |
| 139 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 140 | GrConicEffect::GrConicEffect(GrPrimitiveEdgeType edgeType) |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 141 | : fEdgeType(edgeType) { |
| 142 | fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType)); |
| 143 | fInConicCoeffs = &this->addVertexAttrib(GrAttribute("inConicCoeffs", |
| 144 | kVec4f_GrVertexAttribType)); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 145 | } |
| 146 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 147 | bool GrConicEffect::onIsEqual(const GrGeometryProcessor& other) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 148 | const GrConicEffect& ce = other.cast<GrConicEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 149 | return (ce.fEdgeType == fEdgeType); |
| 150 | } |
| 151 | |
| 152 | ////////////////////////////////////////////////////////////////////////////// |
| 153 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 154 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrConicEffect); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 155 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 156 | GrGeometryProcessor* GrConicEffect::TestCreate(SkRandom* random, |
| 157 | GrContext*, |
| 158 | const GrDrawTargetCaps& caps, |
| 159 | GrTexture*[]) { |
| 160 | GrGeometryProcessor* gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 161 | do { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 162 | GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>( |
| 163 | random->nextULessThan(kGrProcessorEdgeTypeCnt)); |
| 164 | gp = GrConicEffect::Create(edgeType, caps); |
| 165 | } while (NULL == gp); |
| 166 | return gp; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | ////////////////////////////////////////////////////////////////////////////// |
| 170 | // Quad |
| 171 | ////////////////////////////////////////////////////////////////////////////// |
| 172 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 173 | class GrGLQuadEffect : public GrGLGeometryProcessor { |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 174 | public: |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 175 | GrGLQuadEffect(const GrBackendProcessorFactory&, |
| 176 | const GrGeometryProcessor&, |
| 177 | const GrBatchTracker&); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 178 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 179 | virtual void emitCode(const EmitArgs&) SK_OVERRIDE; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 180 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 181 | static inline void GenKey(const GrGeometryProcessor&, |
| 182 | const GrBatchTracker&, |
| 183 | const GrGLCaps&, |
| 184 | GrProcessorKeyBuilder*); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 185 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 186 | virtual void setData(const GrGLProgramDataManager&, |
| 187 | const GrGeometryProcessor&, |
| 188 | const GrBatchTracker&) SK_OVERRIDE {} |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 189 | |
| 190 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 191 | GrPrimitiveEdgeType fEdgeType; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 192 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 193 | typedef GrGLGeometryProcessor INHERITED; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 194 | }; |
skia.committer@gmail.com | 44a77c8 | 2013-08-23 07:01:29 +0000 | [diff] [blame] | 195 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 196 | GrGLQuadEffect::GrGLQuadEffect(const GrBackendProcessorFactory& factory, |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 197 | const GrGeometryProcessor& processor, |
| 198 | const GrBatchTracker& bt) |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 199 | : INHERITED (factory) { |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 200 | const GrQuadEffect& ce = processor.cast<GrQuadEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 201 | fEdgeType = ce.getEdgeType(); |
| 202 | } |
| 203 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 204 | void GrGLQuadEffect::emitCode(const EmitArgs& args) { |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 205 | GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
| 206 | const GrQuadEffect& gp = args.fGP.cast<GrQuadEffect>(); |
| 207 | |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 208 | GrGLVertToFrag v(kVec4f_GrSLType); |
| 209 | args.fPB->addVarying("HairQuadEdge", &v); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 210 | vsBuilder->codeAppendf("%s = %s;", v.vsOut(), gp.inHairQuadEdge()->fName); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 211 | |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 212 | // setup coord outputs |
| 213 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), gp.inPosition()->fName); |
| 214 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), gp.inPosition()->fName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 215 | |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 216 | // setup position varying |
| 217 | vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(), vsBuilder->uViewM(), |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 218 | gp.inPosition()->fName); |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 219 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 220 | GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 221 | fsBuilder->codeAppendf("float edgeAlpha;"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 222 | |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 223 | switch (fEdgeType) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 224 | case kHairlineAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 225 | SkAssertResult(fsBuilder->enableFeature( |
| 226 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 227 | fsBuilder->codeAppendf("vec2 duvdx = dFdx(%s.xy);", v.fsIn()); |
| 228 | fsBuilder->codeAppendf("vec2 duvdy = dFdy(%s.xy);", v.fsIn()); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 229 | fsBuilder->codeAppendf("vec2 gF = vec2(2.0 * %s.x * duvdx.x - duvdx.y," |
| 230 | " 2.0 * %s.x * duvdy.x - duvdy.y);", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 231 | v.fsIn(), v.fsIn()); |
| 232 | fsBuilder->codeAppendf("edgeAlpha = (%s.x * %s.x - %s.y);", v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 233 | fsBuilder->codeAppend("edgeAlpha = sqrt(edgeAlpha * edgeAlpha / dot(gF, gF));"); |
| 234 | fsBuilder->codeAppend("edgeAlpha = max(1.0 - edgeAlpha, 0.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 235 | // Add line below for smooth cubic ramp |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 236 | // fsBuilder->codeAppend("edgeAlpha = edgeAlpha*edgeAlpha*(3.0-2.0*edgeAlpha);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 237 | break; |
| 238 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 239 | case kFillAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 240 | SkAssertResult(fsBuilder->enableFeature( |
| 241 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 242 | fsBuilder->codeAppendf("vec2 duvdx = dFdx(%s.xy);", v.fsIn()); |
| 243 | fsBuilder->codeAppendf("vec2 duvdy = dFdy(%s.xy);", v.fsIn()); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 244 | fsBuilder->codeAppendf("vec2 gF = vec2(2.0 * %s.x * duvdx.x - duvdx.y," |
| 245 | " 2.0 * %s.x * duvdy.x - duvdy.y);", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 246 | v.fsIn(), v.fsIn()); |
| 247 | fsBuilder->codeAppendf("edgeAlpha = (%s.x * %s.x - %s.y);", v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 248 | fsBuilder->codeAppend("edgeAlpha = edgeAlpha / sqrt(dot(gF, gF));"); |
| 249 | fsBuilder->codeAppend("edgeAlpha = clamp(1.0 - edgeAlpha, 0.0, 1.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 250 | // Add line below for smooth cubic ramp |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 251 | // fsBuilder->codeAppend("edgeAlpha = edgeAlpha*edgeAlpha*(3.0-2.0*edgeAlpha);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 252 | break; |
| 253 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 254 | case kFillBW_GrProcessorEdgeType: { |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 255 | fsBuilder->codeAppendf("edgeAlpha = (%s.x * %s.x - %s.y);", v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | b2f94d1 | 2014-08-29 10:08:36 -0700 | [diff] [blame] | 256 | fsBuilder->codeAppend("edgeAlpha = float(edgeAlpha < 0.0);"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 257 | break; |
| 258 | } |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 259 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 260 | SkFAIL("Shouldn't get here"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 261 | } |
| 262 | |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 263 | fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 264 | } |
| 265 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 266 | void GrGLQuadEffect::GenKey(const GrGeometryProcessor& processor, |
| 267 | const GrBatchTracker&, |
| 268 | const GrGLCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 269 | GrProcessorKeyBuilder* b) { |
| 270 | const GrQuadEffect& ce = processor.cast<GrQuadEffect>(); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 271 | uint32_t key = ce.isAntiAliased() ? (ce.isFilled() ? 0x0 : 0x1) : 0x2; |
| 272 | b->add32(key); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | ////////////////////////////////////////////////////////////////////////////// |
| 276 | |
| 277 | GrQuadEffect::~GrQuadEffect() {} |
| 278 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 279 | const GrBackendGeometryProcessorFactory& GrQuadEffect::getFactory() const { |
| 280 | return GrTBackendGeometryProcessorFactory<GrQuadEffect>::getInstance(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 281 | } |
| 282 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 283 | GrQuadEffect::GrQuadEffect(GrPrimitiveEdgeType edgeType) |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 284 | : fEdgeType(edgeType) { |
| 285 | fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType)); |
| 286 | fInHairQuadEdge = &this->addVertexAttrib(GrAttribute("inHairQuadEdge", |
| 287 | kVec4f_GrVertexAttribType)); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 288 | } |
| 289 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 290 | bool GrQuadEffect::onIsEqual(const GrGeometryProcessor& other) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 291 | const GrQuadEffect& ce = other.cast<GrQuadEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 292 | return (ce.fEdgeType == fEdgeType); |
| 293 | } |
| 294 | |
| 295 | ////////////////////////////////////////////////////////////////////////////// |
| 296 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 297 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrQuadEffect); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 298 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 299 | GrGeometryProcessor* GrQuadEffect::TestCreate(SkRandom* random, |
| 300 | GrContext*, |
| 301 | const GrDrawTargetCaps& caps, |
| 302 | GrTexture*[]) { |
| 303 | GrGeometryProcessor* gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 304 | do { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 305 | GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>( |
| 306 | random->nextULessThan(kGrProcessorEdgeTypeCnt)); |
| 307 | gp = GrQuadEffect::Create(edgeType, caps); |
| 308 | } while (NULL == gp); |
| 309 | return gp; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | ////////////////////////////////////////////////////////////////////////////// |
| 313 | // Cubic |
| 314 | ////////////////////////////////////////////////////////////////////////////// |
| 315 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 316 | class GrGLCubicEffect : public GrGLGeometryProcessor { |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 317 | public: |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 318 | GrGLCubicEffect(const GrBackendProcessorFactory&, |
| 319 | const GrGeometryProcessor&, |
| 320 | const GrBatchTracker&); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 321 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 322 | virtual void emitCode(const EmitArgs&) SK_OVERRIDE; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 323 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 324 | static inline void GenKey(const GrGeometryProcessor&, |
| 325 | const GrBatchTracker&, |
| 326 | const GrGLCaps&, |
| 327 | GrProcessorKeyBuilder*); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 328 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 329 | virtual void setData(const GrGLProgramDataManager&, |
| 330 | const GrGeometryProcessor&, |
| 331 | const GrBatchTracker&) SK_OVERRIDE {} |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 332 | |
| 333 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 334 | GrPrimitiveEdgeType fEdgeType; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 335 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 336 | typedef GrGLGeometryProcessor INHERITED; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 337 | }; |
skia.committer@gmail.com | 44a77c8 | 2013-08-23 07:01:29 +0000 | [diff] [blame] | 338 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 339 | GrGLCubicEffect::GrGLCubicEffect(const GrBackendProcessorFactory& factory, |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 340 | const GrGeometryProcessor& processor, |
| 341 | const GrBatchTracker&) |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 342 | : INHERITED (factory) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 343 | const GrCubicEffect& ce = processor.cast<GrCubicEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 344 | fEdgeType = ce.getEdgeType(); |
| 345 | } |
| 346 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 347 | void GrGLCubicEffect::emitCode(const EmitArgs& args) { |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 348 | GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 349 | const GrCubicEffect& gp = args.fGP.cast<GrCubicEffect>(); |
| 350 | |
| 351 | GrGLVertToFrag v(kVec4f_GrSLType); |
joshualitt | ed8bdc5 | 2014-12-03 09:29:52 -0800 | [diff] [blame] | 352 | args.fPB->addVarying("CubicCoeffs", &v, GrGLShaderVar::kHigh_Precision); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 353 | vsBuilder->codeAppendf("%s = %s;", v.vsOut(), gp.inCubicCoeffs()->fName); |
| 354 | |
| 355 | // setup coord outputs |
| 356 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), gp.inPosition()->fName); |
| 357 | vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), gp.inPosition()->fName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 358 | |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 359 | // setup position varying |
| 360 | vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(), vsBuilder->uViewM(), |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 361 | gp.inPosition()->fName); |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 362 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 363 | GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 364 | |
| 365 | GrGLShaderVar edgeAlpha("edgeAlpha", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 366 | GrGLShaderVar dklmdx("dklmdx", kVec3f_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 367 | GrGLShaderVar dklmdy("dklmdy", kVec3f_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 368 | GrGLShaderVar dfdx("dfdx", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 369 | GrGLShaderVar dfdy("dfdy", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 370 | GrGLShaderVar gF("gF", kVec2f_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 371 | GrGLShaderVar gFM("gFM", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 372 | GrGLShaderVar func("func", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision); |
| 373 | |
| 374 | fsBuilder->declAppend(edgeAlpha); |
| 375 | fsBuilder->declAppend(dklmdx); |
| 376 | fsBuilder->declAppend(dklmdy); |
| 377 | fsBuilder->declAppend(dfdx); |
| 378 | fsBuilder->declAppend(dfdy); |
| 379 | fsBuilder->declAppend(gF); |
| 380 | fsBuilder->declAppend(gFM); |
| 381 | fsBuilder->declAppend(func); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 382 | |
| 383 | switch (fEdgeType) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 384 | case kHairlineAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 385 | SkAssertResult(fsBuilder->enableFeature( |
| 386 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 387 | fsBuilder->codeAppendf("%s = dFdx(%s.xyz);", dklmdx.c_str(), v.fsIn()); |
| 388 | fsBuilder->codeAppendf("%s = dFdy(%s.xyz);", dklmdy.c_str(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 389 | fsBuilder->codeAppendf("%s = 3.0 * %s.x * %s.x * %s.x - %s.y * %s.z - %s.z * %s.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 390 | dfdx.c_str(), v.fsIn(), v.fsIn(), dklmdx.c_str(), v.fsIn(), |
| 391 | dklmdx.c_str(), v.fsIn(), dklmdx.c_str()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 392 | fsBuilder->codeAppendf("%s = 3.0 * %s.x * %s.x * %s.x - %s.y * %s.z - %s.z * %s.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 393 | dfdy.c_str(), v.fsIn(), v.fsIn(), dklmdy.c_str(), v.fsIn(), |
| 394 | dklmdy.c_str(), v.fsIn(), dklmdy.c_str()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 395 | fsBuilder->codeAppendf("%s = vec2(%s, %s);", gF.c_str(), dfdx.c_str(), dfdy.c_str()); |
| 396 | fsBuilder->codeAppendf("%s = sqrt(dot(%s, %s));", gFM.c_str(), gF.c_str(), gF.c_str()); |
| 397 | fsBuilder->codeAppendf("%s = %s.x * %s.x * %s.x - %s.y * %s.z;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 398 | func.c_str(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 399 | fsBuilder->codeAppendf("%s = abs(%s);", func.c_str(), func.c_str()); |
| 400 | fsBuilder->codeAppendf("%s = %s / %s;", |
| 401 | edgeAlpha.c_str(), func.c_str(), gFM.c_str()); |
| 402 | fsBuilder->codeAppendf("%s = max(1.0 - %s, 0.0);", |
| 403 | edgeAlpha.c_str(), edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 404 | // Add line below for smooth cubic ramp |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 405 | // fsBuilder->codeAppendf("%s = %s * %s * (3.0 - 2.0 * %s);", |
| 406 | // edgeAlpha.c_str(), edgeAlpha.c_str(), edgeAlpha.c_str(), |
| 407 | // edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 408 | break; |
| 409 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 410 | case kFillAA_GrProcessorEdgeType: { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 411 | SkAssertResult(fsBuilder->enableFeature( |
| 412 | GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 413 | fsBuilder->codeAppendf("%s = dFdx(%s.xyz);", dklmdx.c_str(), v.fsIn()); |
| 414 | fsBuilder->codeAppendf("%s = dFdy(%s.xyz);", dklmdy.c_str(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 415 | fsBuilder->codeAppendf("%s =" |
| 416 | "3.0 * %s.x * %s.x * %s.x - %s.y * %s.z - %s.z * %s.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 417 | dfdx.c_str(), v.fsIn(), v.fsIn(), dklmdx.c_str(), v.fsIn(), |
| 418 | dklmdx.c_str(), v.fsIn(), dklmdx.c_str()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 419 | fsBuilder->codeAppendf("%s = 3.0 * %s.x * %s.x * %s.x - %s.y * %s.z - %s.z * %s.y;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 420 | dfdy.c_str(), v.fsIn(), v.fsIn(), dklmdy.c_str(), v.fsIn(), |
| 421 | dklmdy.c_str(), v.fsIn(), dklmdy.c_str()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 422 | fsBuilder->codeAppendf("%s = vec2(%s, %s);", gF.c_str(), dfdx.c_str(), dfdy.c_str()); |
| 423 | fsBuilder->codeAppendf("%s = sqrt(dot(%s, %s));", gFM.c_str(), gF.c_str(), gF.c_str()); |
| 424 | fsBuilder->codeAppendf("%s = %s.x * %s.x * %s.x - %s.y * %s.z;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 425 | func.c_str(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 426 | fsBuilder->codeAppendf("%s = %s / %s;", |
| 427 | edgeAlpha.c_str(), func.c_str(), gFM.c_str()); |
| 428 | fsBuilder->codeAppendf("%s = clamp(1.0 - %s, 0.0, 1.0);", |
| 429 | edgeAlpha.c_str(), edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 430 | // Add line below for smooth cubic ramp |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 431 | // fsBuilder->codeAppendf("%s = %s * %s * (3.0 - 2.0 * %s);", |
| 432 | // edgeAlpha.c_str(), edgeAlpha.c_str(), edgeAlpha.c_str(), |
| 433 | // edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 434 | break; |
| 435 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 436 | case kFillBW_GrProcessorEdgeType: { |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 437 | fsBuilder->codeAppendf("%s = %s.x * %s.x * %s.x - %s.y * %s.z;", |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 438 | edgeAlpha.c_str(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn()); |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 439 | fsBuilder->codeAppendf("%s = float(%s < 0.0);", edgeAlpha.c_str(), edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 440 | break; |
| 441 | } |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 442 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 443 | SkFAIL("Shouldn't get here"); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 444 | } |
| 445 | |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 446 | |
| 447 | fsBuilder->codeAppendf("%s = vec4(%s);", args.fOutputCoverage, edgeAlpha.c_str()); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 448 | } |
| 449 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame^] | 450 | void GrGLCubicEffect::GenKey(const GrGeometryProcessor& processor, |
| 451 | const GrBatchTracker&, |
| 452 | const GrGLCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 453 | GrProcessorKeyBuilder* b) { |
| 454 | const GrCubicEffect& ce = processor.cast<GrCubicEffect>(); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 455 | uint32_t key = ce.isAntiAliased() ? (ce.isFilled() ? 0x0 : 0x1) : 0x2; |
| 456 | b->add32(key); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | ////////////////////////////////////////////////////////////////////////////// |
| 460 | |
| 461 | GrCubicEffect::~GrCubicEffect() {} |
| 462 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 463 | const GrBackendGeometryProcessorFactory& GrCubicEffect::getFactory() const { |
| 464 | return GrTBackendGeometryProcessorFactory<GrCubicEffect>::getInstance(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 465 | } |
| 466 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 467 | GrCubicEffect::GrCubicEffect(GrPrimitiveEdgeType edgeType) |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 468 | : fEdgeType(edgeType) { |
| 469 | fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType)); |
| 470 | fInCubicCoeffs = &this->addVertexAttrib(GrAttribute("inCubicCoeffs", |
| 471 | kVec4f_GrVertexAttribType)); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 472 | } |
| 473 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 474 | bool GrCubicEffect::onIsEqual(const GrGeometryProcessor& other) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 475 | const GrCubicEffect& ce = other.cast<GrCubicEffect>(); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 476 | return (ce.fEdgeType == fEdgeType); |
| 477 | } |
| 478 | |
| 479 | ////////////////////////////////////////////////////////////////////////////// |
| 480 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 481 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrCubicEffect); |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 482 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 483 | GrGeometryProcessor* GrCubicEffect::TestCreate(SkRandom* random, |
| 484 | GrContext*, |
| 485 | const GrDrawTargetCaps& caps, |
| 486 | GrTexture*[]) { |
| 487 | GrGeometryProcessor* gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 488 | do { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 489 | GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>( |
| 490 | random->nextULessThan(kGrProcessorEdgeTypeCnt)); |
| 491 | gp = GrCubicEffect::Create(edgeType, caps); |
| 492 | } while (NULL == gp); |
| 493 | return gp; |
commit-bot@chromium.org | 07e1c3f | 2013-08-22 20:41:15 +0000 | [diff] [blame] | 494 | } |
egdaniel | 9bd5bbf | 2014-08-29 11:12:30 -0700 | [diff] [blame] | 495 | |