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// Copyright 2021 The Tint 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 "src/writer/glsl/generator.h"
#include "src/transform/glsl.h"
#include "src/writer/glsl/generator_impl.h"
namespace tint {
namespace writer {
namespace glsl {
Result::Result() = default;
Result::~Result() = default;
Result::Result(const Result&) = default;
Result Generate(const Program* program,
const Options&,
const std::string& entry_point) {
Result result;
// Run the GLSL sanitizer.
transform::DataMap data;
data.Add<transform::Glsl::Config>(entry_point);
transform::Glsl sanitizer;
auto output = sanitizer.Run(program, data);
if (!output.program.IsValid()) {
result.success = false;
result.error = output.program.Diagnostics().str();
return result;
}
// Generate the GLSL code.
auto impl = std::make_unique<GeneratorImpl>(&output.program);
result.success = impl->Generate();
result.error = impl->error();
result.glsl = impl->result();
// Collect the list of entry points in the sanitized program.
for (auto* func : output.program.AST().Functions()) {
if (func->IsEntryPoint()) {
auto name = output.program.Symbols().NameFor(func->symbol);
result.entry_points.push_back({name, func->PipelineStage()});
}
}
return result;
}
} // namespace glsl
} // namespace writer
} // namespace tint