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Diffstat (limited to 'src/gpu/effects/GrSkSLFP.cpp')
| -rw-r--r-- | src/gpu/effects/GrSkSLFP.cpp | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/src/gpu/effects/GrSkSLFP.cpp b/src/gpu/effects/GrSkSLFP.cpp deleted file mode 100644 index 0fc949edda..0000000000 --- a/src/gpu/effects/GrSkSLFP.cpp +++ /dev/null @@ -1,220 +0,0 @@ -/* - * 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 "glsl/GrGLSLFragmentProcessor.h" -#include "glsl/GrGLSLFragmentShaderBuilder.h" -#include "glsl/GrGLSLProgramBuilder.h" -#include "GrContext.h" -#include "GrContextPriv.h" -#include "GrTexture.h" -#include "SkSLUtil.h" - -GrSkSLFPFactory::GrSkSLFPFactory(const char* name, const GrShaderCaps* shaderCaps, const char* sksl) -: fName(name) { - SkSL::Program::Settings settings; - settings.fCaps = shaderCaps; - fBaseProgram = fCompiler.convertProgram(SkSL::Program::kPipelineStage_Kind, - 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); - } - } - } - } -} - -std::unique_ptr<GrFragmentProcessor> GrSkSLFPFactory::make(const void* inputs, size_t inputSize) { - SkASSERT(!fCompiler.errorCount()); - SkSL::String key; - size_t offset = 0; - for (const auto& v : fInputVars) { - if (&v->fType == fCompiler.context().fInt_Type.get()) { - offset = SkAlign4(offset); - if (v->fModifiers.fLayout.fKey) { - key += ((char*) inputs)[offset + 0]; - key += ((char*) inputs)[offset + 1]; - key += ((char*) inputs)[offset + 2]; - key += ((char*) inputs)[offset + 3]; - } - offset += sizeof(int32_t); - } - else { - // unsupported input var type - SkASSERT(false); - } - } - SkASSERT(offset == inputSize); - return std::unique_ptr<GrFragmentProcessor>(new GrSkSLFP(this, inputs, inputSize, - std::move(key))); -} - -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()) { - 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); - } - } - SkASSERT(offset == inputSize); - - std::unique_ptr<SkSL::Program> specialized = fCompiler.specialize(*fBaseProgram, inputMap); - SkAssertResult(fCompiler.optimize(*specialized)); - const SkSL::Program* result = specialized.get(); - fSpecializations.insert(std::make_pair(key, std::move(specialized))); - return result; -} - -class GrGLSLSkSLFP : public GrGLSLFragmentProcessor { -public: - GrGLSLSkSLFP(SkSL::String glsl, std::vector<SkSL::Compiler::FormatArg> formatArgs) - : fGLSL(glsl) - , fFormatArgs(formatArgs) {} - - void emitCode(EmitArgs& args) override { - 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': - switch (fFormatArgs[formatArgIndex++]) { - case SkSL::Compiler::FormatArg::kInput: - fragBuilder->codeAppend(args.fInputColor ? args.fInputColor - : "half4(1)"); - break; - case SkSL::Compiler::FormatArg::kOutput: - fragBuilder->codeAppend(args.fOutputColor); - break; - } - break; - default: - fragBuilder->codeAppendf("%c", c); - } - substringStartIndex = i + 1; - } - } - fragBuilder->codeAppend(fGLSL.c_str() + substringStartIndex, - fGLSL.length() - substringStartIndex); - } - - // nearly-finished GLSL; still contains printf-style "%s" format tokens - const SkSL::String fGLSL; - std::vector<SkSL::Compiler::FormatArg> fFormatArgs; -}; - -std::unique_ptr<GrFragmentProcessor> GrSkSLFP::Make(GrContext* context, int index, const char* name, - const char* sksl, const void* inputs, - size_t inputSize) { - GrSkSLFPFactory* factory = context->contextPriv().getFPFactory(index); - if (!factory) { - factory = new GrSkSLFPFactory(name, context->contextPriv().caps()->shaderCaps(), sksl); - context->contextPriv().setFPFactory(index, factory); - } - return factory->make(inputs, inputSize); -} - -const char* GrSkSLFP::name() const { - return fFactory.fName; -} - -GrGLSLFragmentProcessor* GrSkSLFP::onCreateGLSLInstance() const { - 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()); - abort(); - } - return new GrGLSLSkSLFP(glsl, formatArgs); -} - -void GrSkSLFP::onGetGLSLProcessorKey(const GrShaderCaps& caps, - GrProcessorKeyBuilder* b) const { - const char* current = fKey.data(); - size_t length = fKey.length(); - for (size_t i = 0; i < length / 4; ++i) { - b->add32(*(int32_t*) current); - current += 4; - } - size_t excessCount = length % 4; - if (excessCount) { - int32_t excess = 0; - for (size_t i = 0; i < excessCount; ++i) { - excess <<= 8; - excess += *current; - ++current; - } - b->add32(excess); - } -} - -bool GrSkSLFP::onIsEqual(const GrFragmentProcessor& other) const { - const GrSkSLFP& sk = other.cast<GrSkSLFP>(); - SkASSERT(fFactory.fBaseProgram != sk.fFactory.fBaseProgram || fInputSize == sk.fInputSize); - return fFactory.fBaseProgram == sk.fFactory.fBaseProgram && - !memcmp(fInputs.get(), sk.fInputs.get(), fInputSize); -} - -std::unique_ptr<GrFragmentProcessor> GrSkSLFP::clone() const { - return std::unique_ptr<GrFragmentProcessor>(new GrSkSLFP(*this)); -} - -GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSkSLFP); - -#if GR_TEST_UTILS - -#include "SkGr.h" - -using Value = SkSL::Program::Settings::Value; - -std::unique_ptr<GrFragmentProcessor> GrSkSLFP::TestCreate(GrProcessorTestData* d) { - int type = d->fRandom->nextULessThan(1); - switch (type) { - case 0: { - static int ditherIndex = NewIndex(); - int rangeType = d->fRandom->nextULessThan(3); - return GrSkSLFP::Make(d->context(), ditherIndex, "Dither", SKSL_DITHER_SRC, &rangeType, - sizeof(rangeType)); - } - } - SK_ABORT("unreachable"); - return nullptr; -} - -#endif |