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// Copyright 2020 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.
#ifndef SRC_WRITER_SPIRV_BINARY_WRITER_H_
#define SRC_WRITER_SPIRV_BINARY_WRITER_H_
#include <vector>
#include "src/writer/spirv/builder.h"
namespace tint {
namespace writer {
namespace spirv {
/// Writer to convert from builder to SPIR-V binary
class BinaryWriter {
public:
/// Constructor
BinaryWriter();
~BinaryWriter();
/// Writes the SPIR-V header.
/// @param bound the bound to output
void WriteHeader(uint32_t bound);
/// Writes the given builder data into a binary. Note, this does not emit
/// the SPIR-V header. You **must** call WriteHeader() before WriteBuilder()
/// if you want the SPIR-V to be emitted.
/// @param builder the builder to assemble from
void WriteBuilder(Builder* builder);
/// Writes the given instruction into the binary.
/// @param inst the instruction to assemble
void WriteInstruction(const Instruction& inst);
/// @returns the assembled SPIR-V
const std::vector<uint32_t>& result() const { return out_; }
private:
void process_instruction(const Instruction& inst);
void process_op(const Operand& op);
std::vector<uint32_t> out_;
};
} // namespace spirv
} // namespace writer
} // namespace tint
#endif // SRC_WRITER_SPIRV_BINARY_WRITER_H_