// Copyright 2018 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <cstdint>
#include <string>
#include <vector>

#include "DawnSPIRVCrossFuzzer.h"

#include "spirv-cross/spirv_hlsl.hpp"

namespace {

    int FuzzTask(const std::vector<uint32_t>& input) {
        std::unique_ptr<spirv_cross::CompilerHLSL> compiler;
        DawnSPIRVCrossFuzzer::ExecuteWithSignalTrap([&compiler, input]() {
            compiler = std::make_unique<spirv_cross::CompilerHLSL>(input);
        });
        if (compiler == nullptr) {
            return 0;
        }

        // Using the options that are used by Dawn, they appear in ShaderModuleD3D12.cpp
        spirv_cross::CompilerGLSL::Options options_glsl;
        options_glsl.vertex.fixup_clipspace = true;
        options_glsl.vertex.flip_vert_y = true;
        compiler->set_common_options(options_glsl);

        spirv_cross::CompilerHLSL::Options options_hlsl;
        options_hlsl.shader_model = 51;
        compiler->set_hlsl_options(options_hlsl);

        DawnSPIRVCrossFuzzer::ExecuteWithSignalTrap([&compiler]() { compiler->compile(); });

        return 0;
    }

}  // namespace

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
    return DawnSPIRVCrossFuzzer::Run(data, size, FuzzTask);
}