| /* | |
| * Copyright 2018 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #include "GrSkSLFP.h" | |
| #include "GrBaseContextPriv.h" | |
| #include "GrContext_Base.h" | |
| #include "GrTexture.h" | |
| #include "SkSLUtil.h" | |
| #include "glsl/GrGLSLFragmentProcessor.h" | |
| #include "glsl/GrGLSLFragmentShaderBuilder.h" | |
| #include "glsl/GrGLSLProgramBuilder.h" | |
| GrSkSLFPFactory::GrSkSLFPFactory(const char* name, const GrShaderCaps* shaderCaps, const char* sksl, | |
| SkSL::Program::Kind kind) | |
| : fKind(kind) | |
| , fName(name) { | |
| SkSL::Program::Settings settings; | |
| settings.fCaps = shaderCaps; | |
| fBaseProgram = fCompiler.convertProgram(fKind, SkSL::String(sksl), settings); | |
| if (fCompiler.errorCount()) { | |
| SkDebugf("%s\n", fCompiler.errorText().c_str()); | |
| } | |
| SkASSERT(fBaseProgram); | |
| SkASSERT(!fCompiler.errorCount()); | |
| for (const auto& e : *fBaseProgram) { | |
| if (e.fKind == SkSL::ProgramElement::kVar_Kind) { | |
| SkSL::VarDeclarations& v = (SkSL::VarDeclarations&) e; | |
| for (const auto& varStatement : v.fVars) { | |
| const SkSL::Variable& var = *((SkSL::VarDeclaration&) *varStatement).fVar; | |
| if (var.fModifiers.fFlags & SkSL::Modifiers::kIn_Flag) { | |
| fInputVars.push_back(&var); | |
| } | |
| if (var.fModifiers.fLayout.fKey) { | |
| fKeyVars.push_back(&var); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| const SkSL::Program* GrSkSLFPFactory::getSpecialization(const SkSL::String& key, const void* inputs, | |
| size_t inputSize) { | |
| const auto& found = fSpecializations.find(key); | |
| if (found != fSpecializations.end()) { | |
| return found->second.get(); | |
| } | |
| std::unordered_map<SkSL::String, SkSL::Program::Settings::Value> inputMap; | |
| size_t offset = 0; | |
| for (const auto& v : fInputVars) { | |
| SkSL::String name(v->fName); | |
| if (&v->fType == fCompiler.context().fInt_Type.get() || | |
| &v->fType == fCompiler.context().fShort_Type.get()) { | |
| offset = SkAlign4(offset); | |
| int32_t v = *(int32_t*) (((uint8_t*) inputs) + offset); | |
| inputMap.insert(std::make_pair(name, SkSL::Program::Settings::Value(v))); | |
| offset += sizeof(int32_t); | |
| } else if (&v->fType == fCompiler.context().fFloat_Type.get() || | |
| &v->fType == fCompiler.context().fHalf_Type.get()) { | |
| offset = SkAlign4(offset); | |
| float v = *(float*) (((uint8_t*) inputs) + offset); | |
| inputMap.insert(std::make_pair(name, SkSL::Program::Settings::Value(v))); | |
| offset += sizeof(float); | |
| } else if (&v->fType == fCompiler.context().fBool_Type.get()) { | |
| bool v = *(((bool*) inputs) + offset); | |
| inputMap.insert(std::make_pair(name, SkSL::Program::Settings::Value(v))); | |
| offset += sizeof(bool); | |
| } else if (&v->fType == fCompiler.context().fFloat4_Type.get() || | |
| &v->fType == fCompiler.context().fHalf4_Type.get()) { | |
| offset = SkAlign4(offset) + sizeof(float) * 4; | |
| } else if (&v->fType == fCompiler.context().fFragmentProcessor_Type.get()) { | |
| // do nothing | |
| } else { | |
| printf("can't handle input var: %s\n", SkSL::String(v->fType.fName).c_str()); | |
| SkASSERT(false); | |
| } | |
| } | |
| std::unique_ptr<SkSL::Program> specialized = fCompiler.specialize(*fBaseProgram, inputMap); | |
| bool optimized = fCompiler.optimize(*specialized); | |
| if (!optimized) { | |
| SkDebugf("%s\n", fCompiler.errorText().c_str()); | |
| SkASSERT(false); | |
| } | |
| const SkSL::Program* result = specialized.get(); | |
| fSpecializations.insert(std::make_pair(key, std::move(specialized))); | |
| return result; | |
| } | |
| static SkSL::Layout::CType get_ctype(const SkSL::Context& context, const SkSL::Variable& v) { | |
| SkSL::Layout::CType result = v.fModifiers.fLayout.fCType; | |
| if (result == SkSL::Layout::CType::kDefault) { | |
| if (&v.fType == context.fFloat_Type.get()) { | |
| result = SkSL::Layout::CType::kFloat; | |
| } else if (&v.fType == context.fFloat4_Type.get()) { | |
| result = SkSL::Layout::CType::kSkRect; | |
| } else if (&v.fType == context.fHalf4_Type.get()) { | |
| result = SkSL::Layout::CType::kSkPMColor; | |
| } else if (&v.fType == context.fInt_Type.get()) { | |
| result = SkSL::Layout::CType::kInt32; | |
| } else if (&v.fType == context.fBool_Type.get()) { | |
| result = SkSL::Layout::CType::kBool; | |
| } else { | |
| return SkSL::Layout::CType::kDefault; | |
| } | |
| } | |
| return result; | |
| } | |
| class GrGLSLSkSLFP : public GrGLSLFragmentProcessor { | |
| public: | |
| GrGLSLSkSLFP(const SkSL::Context* context, const std::vector<const SkSL::Variable*>* inputVars, | |
| SkSL::String glsl, std::vector<SkSL::Compiler::FormatArg> formatArgs) | |
| : fContext(*context) | |
| , fInputVars(*inputVars) | |
| , fGLSL(glsl) | |
| , fFormatArgs(formatArgs) {} | |
| GrSLType uniformType(const SkSL::Type& type) { | |
| if (type == *fContext.fFloat_Type) { | |
| return kFloat_GrSLType; | |
| } else if (type == *fContext.fHalf_Type) { | |
| return kHalf_GrSLType; | |
| } else if (type == *fContext.fFloat2_Type) { | |
| return kFloat2_GrSLType; | |
| } else if (type == *fContext.fHalf2_Type) { | |
| return kHalf2_GrSLType; | |
| } else if (type == *fContext.fFloat4_Type) { | |
| return kFloat4_GrSLType; | |
| } else if (type == *fContext.fHalf4_Type) { | |
| return kHalf4_GrSLType; | |
| } else if (type == *fContext.fFloat4x4_Type) { | |
| return kFloat4x4_GrSLType; | |
| } else if (type == *fContext.fHalf4x4_Type) { | |
| return kHalf4x4_GrSLType; | |
| } else if (type == *fContext.fBool_Type) { | |
| return kBool_GrSLType; | |
| } else if (type == *fContext.fInt_Type) { | |
| return kInt_GrSLType; | |
| } | |
| printf("%s\n", SkSL::String(type.fName).c_str()); | |
| SK_ABORT("unsupported uniform type"); | |
| return kFloat_GrSLType; | |
| } | |
| void emitCode(EmitArgs& args) override { | |
| for (const auto& v : fInputVars) { | |
| if (v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag && v->fType != | |
| *fContext.fFragmentProcessor_Type) { | |
| fUniformHandles.push_back(args.fUniformHandler->addUniform( | |
| kFragment_GrShaderFlag, | |
| this->uniformType(v->fType), | |
| SkSL::String(v->fName).c_str())); | |
| } | |
| } | |
| std::vector<SkString> childNames; | |
| for (int i = 0; i < this->numChildProcessors(); ++i) { | |
| childNames.push_back(SkStringPrintf("_child%d", i)); | |
| this->emitChild(i, &childNames[i], args); | |
| } | |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; | |
| int substringStartIndex = 0; | |
| int formatArgIndex = 0; | |
| for (size_t i = 0; i < fGLSL.length(); ++i) { | |
| char c = fGLSL[i]; | |
| if (c == '%') { | |
| fragBuilder->codeAppend(fGLSL.c_str() + substringStartIndex, | |
| i - substringStartIndex); | |
| ++i; | |
| c = fGLSL[i]; | |
| switch (c) { | |
| case 's': { | |
| SkSL::Compiler::FormatArg& arg = fFormatArgs[formatArgIndex++]; | |
| switch (arg.fKind) { | |
| case SkSL::Compiler::FormatArg::Kind::kInput: | |
| fragBuilder->codeAppend(args.fInputColor); | |
| break; | |
| case SkSL::Compiler::FormatArg::Kind::kOutput: | |
| fragBuilder->codeAppend(args.fOutputColor); | |
| break; | |
| case SkSL::Compiler::FormatArg::Kind::kUniform: | |
| fragBuilder->codeAppend(args.fUniformHandler->getUniformCStr( | |
| fUniformHandles[arg.fIndex])); | |
| break; | |
| case SkSL::Compiler::FormatArg::Kind::kChildProcessor: | |
| fragBuilder->codeAppend(childNames[arg.fIndex].c_str()); | |
| break; | |
| } | |
| break; | |
| } | |
| default: | |
| fragBuilder->codeAppendf("%c", c); | |
| } | |
| substringStartIndex = i + 1; | |
| } | |
| } | |
| fragBuilder->codeAppend(fGLSL.c_str() + substringStartIndex, | |
| fGLSL.length() - substringStartIndex); | |
| } | |
| void onSetData(const GrGLSLProgramDataManager& pdman, | |
| const GrFragmentProcessor& _proc) override { | |
| size_t uniformIndex = 0; | |
| size_t offset = 0; | |
| const GrSkSLFP& outer = _proc.cast<GrSkSLFP>(); | |
| char* inputs = (char*) outer.fInputs.get(); | |
| for (const auto& v : outer.fFactory->fInputVars) { | |
| switch (get_ctype(fContext, *v)) { | |
| case SkSL::Layout::CType::kSkPMColor: { | |
| float f1 = ((uint8_t*) inputs)[offset++] / 255.0; | |
| float f2 = ((uint8_t*) inputs)[offset++] / 255.0; | |
| float f3 = ((uint8_t*) inputs)[offset++] / 255.0; | |
| float f4 = ((uint8_t*) inputs)[offset++] / 255.0; | |
| if (v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag) { | |
| pdman.set4f(fUniformHandles[uniformIndex++], f1, f2, f3, f4); | |
| } | |
| break; | |
| } | |
| case SkSL::Layout::CType::kSkRect: { | |
| offset = SkAlign4(offset); | |
| float f1 = *(float*) (inputs + offset); | |
| offset += sizeof(float); | |
| float f2 = *(float*) (inputs + offset); | |
| offset += sizeof(float); | |
| float f3 = *(float*) (inputs + offset); | |
| offset += sizeof(float); | |
| float f4 = *(float*) (inputs + offset); | |
| offset += sizeof(float); | |
| if (v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag) { | |
| pdman.set4f(fUniformHandles[uniformIndex++], f1, f2, f3, f4); | |
| } | |
| break; | |
| } | |
| case SkSL::Layout::CType::kInt32: { | |
| int32_t i = *(int32_t*) (inputs + offset); | |
| offset += sizeof(int32_t); | |
| if (v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag) { | |
| pdman.set1i(fUniformHandles[uniformIndex++], i); | |
| } | |
| break; | |
| } | |
| case SkSL::Layout::CType::kFloat: { | |
| float f = *(float*) (inputs + offset); | |
| offset += sizeof(float); | |
| if (v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag) { | |
| pdman.set1f(fUniformHandles[uniformIndex++], f); | |
| } | |
| break; | |
| } | |
| case SkSL::Layout::CType::kBool: | |
| SkASSERT(!(v->fModifiers.fFlags & SkSL::Modifiers::kUniform_Flag)); | |
| ++offset; | |
| break; | |
| default: | |
| SkASSERT(&v->fType == fContext.fFragmentProcessor_Type.get()); | |
| } | |
| } | |
| } | |
| const SkSL::Context& fContext; | |
| const std::vector<const SkSL::Variable*>& fInputVars; | |
| // nearly-finished GLSL; still contains printf-style "%s" format tokens | |
| const SkSL::String fGLSL; | |
| std::vector<SkSL::Compiler::FormatArg> fFormatArgs; | |
| std::vector<UniformHandle> fUniformHandles; | |
| }; | |
| std::unique_ptr<GrSkSLFP> GrSkSLFP::Make(GrContext_Base* context, int index, const char* name, | |
| const char* sksl, const void* inputs, | |
| size_t inputSize, SkSL::Program::Kind kind) { | |
| return std::unique_ptr<GrSkSLFP>(new GrSkSLFP(context->priv().fpFactoryCache(), | |
| context->priv().caps()->shaderCaps(), | |
| kind, index, name, sksl, SkString(), | |
| inputs, inputSize)); | |
| } | |
| std::unique_ptr<GrSkSLFP> GrSkSLFP::Make(GrContext_Base* context, int index, const char* name, | |
| SkString sksl, const void* inputs, size_t inputSize, | |
| SkSL::Program::Kind kind) { | |
| return std::unique_ptr<GrSkSLFP>(new GrSkSLFP(context->priv().fpFactoryCache(), | |
| context->priv().caps()->shaderCaps(), | |
| kind, index, name, nullptr, std::move(sksl), | |
| inputs, inputSize)); | |
| } | |
| GrSkSLFP::GrSkSLFP(sk_sp<GrSkSLFPFactoryCache> factoryCache, const GrShaderCaps* shaderCaps, | |
| SkSL::Program::Kind kind, int index, const char* name, const char* sksl, | |
| SkString skslString, const void* inputs, size_t inputSize) | |
| : INHERITED(kGrSkSLFP_ClassID, kNone_OptimizationFlags) | |
| , fFactoryCache(factoryCache) | |
| , fShaderCaps(sk_ref_sp(shaderCaps)) | |
| , fKind(kind) | |
| , fIndex(index) | |
| , fName(name) | |
| , fSkSLString(skslString) | |
| , fSkSL(sksl ? sksl : fSkSLString.c_str()) | |
| , fInputs(new int8_t[inputSize]) | |
| , fInputSize(inputSize) { | |
| if (fInputSize) { | |
| memcpy(fInputs.get(), inputs, inputSize); | |
| } | |
| } | |
| GrSkSLFP::GrSkSLFP(const GrSkSLFP& other) | |
| : INHERITED(kGrSkSLFP_ClassID, kNone_OptimizationFlags) | |
| , fFactoryCache(other.fFactoryCache) | |
| , fShaderCaps(other.fShaderCaps) | |
| , fFactory(other.fFactory) | |
| , fKind(other.fKind) | |
| , fIndex(other.fIndex) | |
| , fName(other.fName) | |
| , fSkSLString(other.fSkSLString) | |
| , fSkSL(other.fSkSL) | |
| , fInputs(new int8_t[other.fInputSize]) | |
| , fInputSize(other.fInputSize) { | |
| if (fInputSize) { | |
| memcpy(fInputs.get(), other.fInputs.get(), fInputSize); | |
| } | |
| } | |
| const char* GrSkSLFP::name() const { | |
| return fName; | |
| } | |
| void GrSkSLFP::createFactory() const { | |
| if (!fFactory) { | |
| fFactory = fFactoryCache->get(fIndex); | |
| if (!fFactory) { | |
| fFactory = sk_sp<GrSkSLFPFactory>(new GrSkSLFPFactory(fName, fShaderCaps.get(), fSkSL, | |
| fKind)); | |
| fFactoryCache->set(fIndex, fFactory); | |
| } | |
| } | |
| } | |
| void GrSkSLFP::addChild(std::unique_ptr<GrFragmentProcessor> child) { | |
| this->registerChildProcessor(std::move(child)); | |
| } | |
| GrGLSLFragmentProcessor* GrSkSLFP::onCreateGLSLInstance() const { | |
| this->createFactory(); | |
| const SkSL::Program* specialized = fFactory->getSpecialization(fKey, fInputs.get(), fInputSize); | |
| SkSL::String glsl; | |
| std::vector<SkSL::Compiler::FormatArg> formatArgs; | |
| if (!fFactory->fCompiler.toPipelineStage(*specialized, &glsl, &formatArgs)) { | |
| printf("%s\n", fFactory->fCompiler.errorText().c_str()); | |
| SkASSERT(false); | |
| } | |
| return new GrGLSLSkSLFP(specialized->fContext.get(), &fFactory->fInputVars, glsl, formatArgs); | |
| } | |
| void GrSkSLFP::onGetGLSLProcessorKey(const GrShaderCaps& caps, | |
| GrProcessorKeyBuilder* b) const { | |
| this->createFactory(); | |
| b->add32(fIndex); | |
| size_t offset = 0; | |
| char* inputs = (char*) fInputs.get(); | |
| const SkSL::Context& context = fFactory->fCompiler.context(); | |
| for (const auto& v : fFactory->fInputVars) { | |
| if (&v->fType == context.fFragmentProcessor_Type.get()) { | |
| continue; | |
| } | |
| switch (get_ctype(context, *v)) { | |
| case SkSL::Layout::CType::kBool: | |
| if (v->fModifiers.fLayout.fKey) { | |
| fKey += inputs[offset]; | |
| b->add32(inputs[offset]); | |
| } | |
| ++offset; | |
| break; | |
| case SkSL::Layout::CType::kInt32: { | |
| offset = SkAlign4(offset); | |
| if (v->fModifiers.fLayout.fKey) { | |
| fKey += inputs[offset + 0]; | |
| fKey += inputs[offset + 1]; | |
| fKey += inputs[offset + 2]; | |
| fKey += inputs[offset + 3]; | |
| b->add32(*(int32_t*) (inputs + offset)); | |
| } | |
| offset += sizeof(int32_t); | |
| break; | |
| } | |
| case SkSL::Layout::CType::kFloat: { | |
| offset = SkAlign4(offset); | |
| if (v->fModifiers.fLayout.fKey) { | |
| fKey += inputs[offset + 0]; | |
| fKey += inputs[offset + 1]; | |
| fKey += inputs[offset + 2]; | |
| fKey += inputs[offset + 3]; | |
| b->add32(*(float*) (inputs + offset)); | |
| } | |
| offset += sizeof(float); | |
| break; | |
| } | |
| case SkSL::Layout::CType::kSkPMColor: // fall through | |
| case SkSL::Layout::CType::kSkRect: | |
| if (v->fModifiers.fLayout.fKey) { | |
| for (size_t i = 0; i < sizeof(float) * 4; ++i) { | |
| fKey += inputs[offset + i]; | |
| } | |
| b->add32(*(int32_t*) (inputs + offset)); | |
| offset += sizeof(float); | |
| b->add32(*(int32_t*) (inputs + offset)); | |
| offset += sizeof(float); | |
| b->add32(*(int32_t*) (inputs + offset)); | |
| offset += sizeof(float); | |
| b->add32(*(int32_t*) (inputs + offset)); | |
| offset += sizeof(float); | |
| } else { | |
| offset += sizeof(float) * 4; | |
| } | |
| break; | |
| default: | |
| // unsupported input var type | |
| printf("%s\n", SkSL::String(v->fType.fName).c_str()); | |
| SkASSERT(false); | |
| } | |
| } | |
| } | |
| bool GrSkSLFP::onIsEqual(const GrFragmentProcessor& other) const { | |
| const GrSkSLFP& sk = other.cast<GrSkSLFP>(); | |
| SkASSERT(fIndex != sk.fIndex || fInputSize == sk.fInputSize); | |
| return fIndex == sk.fIndex && | |
| !memcmp(fInputs.get(), sk.fInputs.get(), fInputSize); | |
| } | |
| std::unique_ptr<GrFragmentProcessor> GrSkSLFP::clone() const { | |
| std::unique_ptr<GrSkSLFP> result(new GrSkSLFP(*this)); | |
| for (int i = 0; i < this->numChildProcessors(); ++i) { | |
| result->registerChildProcessor(this->childProcessor(i).clone()); | |
| } | |
| return std::unique_ptr<GrFragmentProcessor>(result.release()); | |
| } | |
| // We have to do a bit of manual refcounting in the cache methods below. Ideally, we could just | |
| // define fFactories to contain sk_sp<GrSkSLFPFactory> rather than GrSkSLFPFactory*, but that would | |
| // require GrContext to include GrSkSLFP, which creates much bigger headaches than a few manual | |
| // refcounts. | |
| sk_sp<GrSkSLFPFactory> GrSkSLFPFactoryCache::get(int index) { | |
| if (index >= (int) fFactories.size()) { | |
| return nullptr; | |
| } | |
| GrSkSLFPFactory* result = fFactories[index]; | |
| SkSafeRef(result); | |
| return sk_sp<GrSkSLFPFactory>(result); | |
| } | |
| void GrSkSLFPFactoryCache::set(int index, sk_sp<GrSkSLFPFactory> factory) { | |
| while (index >= (int) fFactories.size()) { | |
| fFactories.emplace_back(); | |
| } | |
| factory->ref(); | |
| SkASSERT(!fFactories[index]); | |
| fFactories[index] = factory.get(); | |
| } | |
| GrSkSLFPFactoryCache::~GrSkSLFPFactoryCache() { | |
| for (GrSkSLFPFactory* factory : fFactories) { | |
| if (factory) { | |
| factory->unref(); | |
| } | |
| } | |
| } | |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSkSLFP); | |
| #if GR_TEST_UTILS | |
| #include "generated/GrConstColorProcessor.h" | |
| #include "GrContext.h" | |
| #include "SkArithmeticImageFilter.h" | |
| extern const char* SKSL_ARITHMETIC_SRC; | |
| extern const char* SKSL_DITHER_SRC; | |
| extern const char* SKSL_OVERDRAW_SRC; | |
| using Value = SkSL::Program::Settings::Value; | |
| std::unique_ptr<GrFragmentProcessor> GrSkSLFP::TestCreate(GrProcessorTestData* d) { | |
| int type = d->fRandom->nextULessThan(3); | |
| switch (type) { | |
| case 0: { | |
| static int ditherIndex = NewIndex(); | |
| int rangeType = d->fRandom->nextULessThan(3); | |
| std::unique_ptr<GrSkSLFP> result = GrSkSLFP::Make(d->context(), ditherIndex, "Dither", | |
| SKSL_DITHER_SRC, &rangeType, | |
| sizeof(rangeType)); | |
| return std::unique_ptr<GrFragmentProcessor>(result.release()); | |
| } | |
| case 1: { | |
| static int arithmeticIndex = NewIndex(); | |
| ArithmeticFPInputs inputs; | |
| inputs.k[0] = d->fRandom->nextF(); | |
| inputs.k[1] = d->fRandom->nextF(); | |
| inputs.k[2] = d->fRandom->nextF(); | |
| inputs.k[3] = d->fRandom->nextF(); | |
| inputs.enforcePMColor = d->fRandom->nextBool(); | |
| std::unique_ptr<GrSkSLFP> result = GrSkSLFP::Make(d->context(), arithmeticIndex, | |
| "Arithmetic", SKSL_ARITHMETIC_SRC, | |
| &inputs, sizeof(inputs)); | |
| result->addChild(GrConstColorProcessor::Make( | |
| SK_PMColor4fWHITE, | |
| GrConstColorProcessor::InputMode::kIgnore)); | |
| return std::unique_ptr<GrFragmentProcessor>(result.release()); | |
| } | |
| case 2: { | |
| static int overdrawIndex = NewIndex(); | |
| SkPMColor inputs[6]; | |
| for (int i = 0; i < 6; ++i) { | |
| inputs[i] = d->fRandom->nextU(); | |
| } | |
| std::unique_ptr<GrSkSLFP> result = GrSkSLFP::Make(d->context(), overdrawIndex, | |
| "Overdraw", SKSL_OVERDRAW_SRC, | |
| &inputs, sizeof(inputs)); | |
| return std::unique_ptr<GrFragmentProcessor>(result.release()); | |
| } | |
| } | |
| SK_ABORT("unreachable"); | |
| return nullptr; | |
| } | |
| #endif |