3b0eacc6ea
Bug: skia:12559 Change-Id: I76b225c9ca81264a15869324007d774d210053b5 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473416 Commit-Queue: Jim Van Verth <jvanverth@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Reviewed-by: John Stiles <johnstiles@google.com>
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
/*
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* Copyright 2019 Google, LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "src/gpu/GrShaderCaps.h"
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#include "src/sksl/SkSLCompiler.h"
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#include "src/sksl/codegen/SkSLPipelineStageCodeGenerator.h"
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#include "src/sksl/ir/SkSLVarDeclarations.h"
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#include "src/sksl/ir/SkSLVariable.h"
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#include "fuzz/Fuzz.h"
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bool FuzzSKSL2Pipeline(sk_sp<SkData> bytes) {
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std::unique_ptr<SkSL::ShaderCaps> caps = SkSL::ShaderCapsFactory::Default();
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SkSL::Compiler compiler(caps.get());
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SkSL::Program::Settings settings;
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std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
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SkSL::ProgramKind::kRuntimeShader,
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SkSL::String((const char*) bytes->data(),
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bytes->size()),
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settings);
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if (!program) {
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return false;
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}
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class Callbacks : public SkSL::PipelineStage::Callbacks {
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using String = SkSL::String;
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String declareUniform(const SkSL::VarDeclaration* decl) override {
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return String(decl->var().name());
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}
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void defineFunction(const char* /*decl*/, const char* /*body*/, bool /*isMain*/) override {}
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void declareFunction(const char* /*decl*/) override {}
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void defineStruct(const char* /*definition*/) override {}
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void declareGlobal(const char* /*declaration*/) override {}
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String sampleShader(int index, String coords) override {
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return "child_" + SkSL::to_string(index) + ".eval(" + coords + ")";
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}
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String sampleColorFilter(int index, String color) override {
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return "child_" + SkSL::to_string(index) + ".eval(" + color + ")";
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}
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String sampleBlender(int index, String src, String dst) override {
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return "child_" + SkSL::to_string(index) + ".eval(" + src + ", " + dst + ")";
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}
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};
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Callbacks callbacks;
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SkSL::PipelineStage::ConvertProgram(*program, "coords", "inColor", "half4(1)", &callbacks);
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return true;
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}
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#if defined(SK_BUILD_FOR_LIBFUZZER)
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size > 3000) {
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return 0;
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}
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auto bytes = SkData::MakeWithoutCopy(data, size);
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FuzzSKSL2Pipeline(bytes);
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return 0;
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}
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#endif
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