1 /* 2 * Copyright 2017 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 /* 9 * This file was autogenerated from GrAlphaThresholdFragmentProcessor.fp; do not modify. 10 */ 11 #include "GrAlphaThresholdFragmentProcessor.h" 12 #if SK_SUPPORT_GPU 13 14 inline GrFragmentProcessor::OptimizationFlags GrAlphaThresholdFragmentProcessor::optFlags( 15 float outerThreshold) { 16 if (outerThreshold >= 1.0) { 17 return kPreservesOpaqueInput_OptimizationFlag | 18 kCompatibleWithCoverageAsAlpha_OptimizationFlag; 19 } else { 20 return kCompatibleWithCoverageAsAlpha_OptimizationFlag; 21 } 22 } 23 #include "glsl/GrGLSLColorSpaceXformHelper.h" 24 #include "glsl/GrGLSLFragmentProcessor.h" 25 #include "glsl/GrGLSLFragmentShaderBuilder.h" 26 #include "glsl/GrGLSLProgramBuilder.h" 27 #include "SkSLCPP.h" 28 #include "SkSLUtil.h" 29 class GrGLSLAlphaThresholdFragmentProcessor : public GrGLSLFragmentProcessor { 30 public: 31 GrGLSLAlphaThresholdFragmentProcessor() {} 32 void emitCode(EmitArgs& args) override { 33 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 34 const GrAlphaThresholdFragmentProcessor& _outer = 35 args.fFp.cast<GrAlphaThresholdFragmentProcessor>(); 36 (void)_outer; 37 fColorSpaceHelper.emitCode(args.fUniformHandler, _outer.colorXform().get()); 38 fInnerThresholdVar = args.fUniformHandler->addUniform( 39 kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "innerThreshold"); 40 fOuterThresholdVar = args.fUniformHandler->addUniform( 41 kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "outerThreshold"); 42 SkSL::String sk_TransformedCoords2D_0 = 43 fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); 44 SkSL::String sk_TransformedCoords2D_1 = 45 fragBuilder->ensureCoords2D(args.fTransformedCoords[1]); 46 fragBuilder->codeAppendf( 47 "vec4 _tmpVar1;vec4 color = %stexture(%s, %s).%s%s;\nvec4 mask_color = texture(%s, " 48 "%s).%s;\nif (mask_color.w < 0.5) {\n if (color.w > %s) {\n float scale " 49 "= %s / color.w;\n color.xyz *= scale;\n color.w = %s;\n }\n} " 50 "else if (color.w < %s) {\n float scale = %s / max(0.001, color.w);\n " 51 "color.xyz *= scale;\n color.w = %s;\n}\n%s = color;\n", 52 fColorSpaceHelper.isValid() ? "(_tmpVar1 = " : "", 53 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(), 54 sk_TransformedCoords2D_0.c_str(), 55 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(), 56 fColorSpaceHelper.isValid() 57 ? SkStringPrintf(", vec4(clamp((%s * vec4(_tmpVar1.rgb, 1.0)).rgb, 0.0, " 58 "_tmpVar1.a), _tmpVar1.a))", 59 args.fUniformHandler->getUniformCStr( 60 fColorSpaceHelper.gamutXformUniform())) 61 .c_str() 62 : "", 63 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[1]).c_str(), 64 sk_TransformedCoords2D_1.c_str(), 65 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[1]).c_str(), 66 args.fUniformHandler->getUniformCStr(fOuterThresholdVar), 67 args.fUniformHandler->getUniformCStr(fOuterThresholdVar), 68 args.fUniformHandler->getUniformCStr(fOuterThresholdVar), 69 args.fUniformHandler->getUniformCStr(fInnerThresholdVar), 70 args.fUniformHandler->getUniformCStr(fInnerThresholdVar), 71 args.fUniformHandler->getUniformCStr(fInnerThresholdVar), args.fOutputColor); 72 } 73 74 private: 75 void onSetData(const GrGLSLProgramDataManager& pdman, 76 const GrFragmentProcessor& _proc) override { 77 const GrAlphaThresholdFragmentProcessor& _outer = 78 _proc.cast<GrAlphaThresholdFragmentProcessor>(); 79 { 80 if (fColorSpaceHelper.isValid()) { 81 fColorSpaceHelper.setData(pdman, _outer.colorXform().get()); 82 } 83 pdman.set1f(fInnerThresholdVar, _outer.innerThreshold()); 84 pdman.set1f(fOuterThresholdVar, _outer.outerThreshold()); 85 } 86 } 87 UniformHandle fImageVar; 88 UniformHandle fMaskVar; 89 UniformHandle fInnerThresholdVar; 90 UniformHandle fOuterThresholdVar; 91 GrGLSLColorSpaceXformHelper fColorSpaceHelper; 92 }; 93 GrGLSLFragmentProcessor* GrAlphaThresholdFragmentProcessor::onCreateGLSLInstance() const { 94 return new GrGLSLAlphaThresholdFragmentProcessor(); 95 } 96 void GrAlphaThresholdFragmentProcessor::onGetGLSLProcessorKey(const GrShaderCaps& caps, 97 GrProcessorKeyBuilder* b) const { 98 b->add32(GrColorSpaceXform::XformKey(fColorXform.get())); 99 } 100 bool GrAlphaThresholdFragmentProcessor::onIsEqual(const GrFragmentProcessor& other) const { 101 const GrAlphaThresholdFragmentProcessor& that = other.cast<GrAlphaThresholdFragmentProcessor>(); 102 (void)that; 103 if (fImage != that.fImage) return false; 104 if (fColorXform != that.fColorXform) return false; 105 if (fMask != that.fMask) return false; 106 if (fInnerThreshold != that.fInnerThreshold) return false; 107 if (fOuterThreshold != that.fOuterThreshold) return false; 108 return true; 109 } 110 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAlphaThresholdFragmentProcessor); 111 #if GR_TEST_UTILS 112 sk_sp<GrFragmentProcessor> GrAlphaThresholdFragmentProcessor::TestCreate( 113 GrProcessorTestData* testData) { 114 sk_sp<GrTextureProxy> bmpProxy = testData->textureProxy(GrProcessorUnitTest::kSkiaPMTextureIdx); 115 sk_sp<GrTextureProxy> maskProxy = testData->textureProxy(GrProcessorUnitTest::kAlphaTextureIdx); 116 117 float innerThresh = testData->fRandom->nextUScalar1() * .99f + 0.005f; 118 float outerThresh = testData->fRandom->nextUScalar1() * .99f + 0.005f; 119 const int kMaxWidth = 1000; 120 const int kMaxHeight = 1000; 121 uint32_t width = testData->fRandom->nextULessThan(kMaxWidth); 122 uint32_t height = testData->fRandom->nextULessThan(kMaxHeight); 123 uint32_t x = testData->fRandom->nextULessThan(kMaxWidth - width); 124 uint32_t y = testData->fRandom->nextULessThan(kMaxHeight - height); 125 SkIRect bounds = SkIRect::MakeXYWH(x, y, width, height); 126 sk_sp<GrColorSpaceXform> colorSpaceXform = GrTest::TestColorXform(testData->fRandom); 127 return GrAlphaThresholdFragmentProcessor::Make(std::move(bmpProxy), colorSpaceXform, 128 std::move(maskProxy), innerThresh, outerThresh, 129 bounds); 130 } 131 #endif 132 #endif 133
