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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_IMPELLER_COMPILER_SPIRV_SKSL_H_
#define FLUTTER_IMPELLER_COMPILER_SPIRV_SKSL_H_
#include <cstdint>
#include <memory>
#include <utility>
#include <variant>
#include "flutter/fml/logging.h"
#include "spirv_glsl.hpp"
namespace impeller {
namespace compiler {
class CompilerSkSL : public spirv_cross::CompilerGLSL {
public:
explicit CompilerSkSL(std::vector<uint32_t> spirv_)
: CompilerGLSL(std::move(spirv_)) {}
CompilerSkSL(const uint32_t* ir_, size_t word_count)
: CompilerGLSL(ir_, word_count) {}
explicit CompilerSkSL(const spirv_cross::ParsedIR& ir_)
: spirv_cross::CompilerGLSL(ir_) {}
explicit CompilerSkSL(spirv_cross::ParsedIR&& ir_)
: spirv_cross::CompilerGLSL(std::move(ir_)) {}
std::string compile() override;
private:
std::string output_name_;
void emit_header() override;
void emit_uniform(const spirv_cross::SPIRVariable& var) override;
void fixup_user_functions();
void detect_unsupported_resources();
bool emit_constant_resources();
bool emit_struct_resources();
bool emit_uniform_resources();
bool emit_output_resources();
bool emit_global_variable_resources();
bool emit_undefined_values();
void emit_resources();
void emit_interface_block(const spirv_cross::SPIRVariable& var);
void emit_function_prototype(
spirv_cross::SPIRFunction& func,
const spirv_cross::Bitset& return_flags) override;
std::string image_type_glsl(const spirv_cross::SPIRType& type,
uint32_t id = 0,
bool member = false) override;
std::string builtin_to_glsl(spv::BuiltIn builtin,
spv::StorageClass storage) override;
std::string to_texture_op(
const spirv_cross::Instruction& i,
bool sparse,
bool* forward,
spirv_cross::SmallVector<uint32_t>& inherited_expressions) override;
std::string to_function_name(
const spirv_cross::CompilerGLSL::TextureFunctionNameArguments& args)
override;
std::string to_function_args(
const spirv_cross::CompilerGLSL::TextureFunctionArguments& args,
bool* p_forward) override;
};
} // namespace compiler
} // namespace impeller
#endif // FLUTTER_IMPELLER_COMPILER_SPIRV_SKSL_H_