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// Copyright 2015 The Shaderc Authors. All rights reserved.
//
// 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 LIBSHADERC_SRC_SHADERC_PRIVATE_H_
#define LIBSHADERC_SRC_SHADERC_PRIVATE_H_
#include <cstdint>
#include <string>
#include <vector>
#include "shaderc/shaderc.h"
#include "spirv-tools/libspirv.h"
// Described in shaderc.h.
struct shaderc_compilation_result {
virtual ~shaderc_compilation_result() {}
// Returns the data from this compilation as a sequence of bytes.
virtual const char* GetBytes() const = 0;
// The size of the output data in term of bytes.
size_t output_data_size = 0;
// Compilation messages.
std::string messages;
// Number of errors.
size_t num_errors = 0;
// Number of warnings.
size_t num_warnings = 0;
// Compilation status.
shaderc_compilation_status compilation_status =
shaderc_compilation_status_null_result_object;
};
// Compilation result class using a vector for holding the compilation
// output data.
class shaderc_compilation_result_vector : public shaderc_compilation_result {
public:
~shaderc_compilation_result_vector() = default;
void SetOutputData(std::vector<uint32_t>&& data) {
output_data_ = std::move(data);
}
const char* GetBytes() const override {
return reinterpret_cast<const char*>(output_data_.data());
}
private:
// Compilation output data. In normal compilation mode, it contains the
// compiled SPIR-V binary code. In disassembly and preprocessing-only mode, it
// contains a null-terminated string which is the text output. For text
// output, extra bytes with value 0x00 might be appended to complete the last
// uint32_t element.
std::vector<uint32_t> output_data_;
};
// Compilation result class using a spv_binary for holding the compilation
// output data.
class shaderc_compilation_result_spv_binary
: public shaderc_compilation_result {
public:
~shaderc_compilation_result_spv_binary() { spvBinaryDestroy(output_data_); }
void SetOutputData(spv_binary data) { output_data_ = data; }
const char* GetBytes() const override {
return reinterpret_cast<const char*>(output_data_->code);
}
private:
spv_binary output_data_ = nullptr;
};
namespace shaderc_util {
class GlslangInitializer;
}
struct shaderc_compiler {
shaderc_util::GlslangInitializer* initializer;
};
#endif // LIBSHADERC_SRC_SHADERC_PRIVATE_H_
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