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/* This file is part of the sirit project.
* Copyright (c) 2019 sirit
* This software may be used and distributed according to the terms of the
* 3-Clause BSD License
*/
#include <algorithm>
#include <cassert>
#include "common_types.h"
#include "op.h"
#include "sirit/sirit.h"
#include "stream.h"
namespace Sirit {
template <typename T>
static void WriteSet(Stream& stream, const T& set) {
for (const auto& item : set) {
item->Write(stream);
}
}
Module::Module(u32 version) : version(version) {}
Module::~Module() = default;
std::vector<u32> Module::Assemble() const {
std::vector<u32> bytes;
Stream stream{bytes};
stream.Write(spv::MagicNumber);
stream.Write(version);
stream.Write(GENERATOR_MAGIC_NUMBER);
stream.Write(bound);
stream.Write(static_cast<u32>(0));
for (const auto capability : capabilities) {
Op op(spv::Op::OpCapability);
op.Add(static_cast<u32>(capability));
op.Write(stream);
}
for (const auto& extension_name : extensions) {
Op op(spv::Op::OpExtension);
op.Add(extension_name);
op.Write(stream);
}
if (glsl_std_450) {
glsl_std_450->Write(stream);
}
Op memory_model_ref{spv::Op::OpMemoryModel};
memory_model_ref.Add(static_cast<u32>(addressing_model));
memory_model_ref.Add(static_cast<u32>(memory_model));
memory_model_ref.Write(stream);
WriteSet(stream, entry_points);
WriteSet(stream, execution_modes);
WriteSet(stream, debug);
WriteSet(stream, annotations);
WriteSet(stream, declarations);
WriteSet(stream, global_variables);
WriteSet(stream, code);
return bytes;
}
void Module::AddExtension(std::string extension_name) {
extensions.insert(std::move(extension_name));
}
void Module::AddCapability(spv::Capability capability) {
capabilities.insert(capability);
}
void Module::SetMemoryModel(spv::AddressingModel addressing_model_, spv::MemoryModel memory_model_) {
this->addressing_model = addressing_model_;
this->memory_model = memory_model_;
}
void Module::AddEntryPoint(spv::ExecutionModel execution_model, Id entry_point,
std::string name, const std::vector<Id>& interfaces) {
auto op{std::make_unique<Op>(spv::Op::OpEntryPoint)};
op->Add(static_cast<u32>(execution_model));
op->Add(entry_point);
op->Add(std::move(name));
op->Add(interfaces);
entry_points.push_back(std::move(op));
}
void Module::AddExecutionMode(Id entry_point, spv::ExecutionMode mode,
const std::vector<Literal>& literals) {
auto op{std::make_unique<Op>(spv::Op::OpExecutionMode)};
op->Add(entry_point);
op->Add(static_cast<u32>(mode));
op->Add(literals);
execution_modes.push_back(std::move(op));
}
Id Module::AddLabel(Id label) {
assert(label != nullptr);
return code.emplace_back(label);
}
Id Module::AddLocalVariable(Id variable) {
assert(variable != nullptr);
return code.emplace_back(variable);
}
Id Module::AddGlobalVariable(Id variable) {
assert(variable);
return global_variables.emplace_back(variable);
}
Id Module::AddCode(std::unique_ptr<Op> op) {
const Id id = code_store.emplace_back(std::move(op)).get();
return code.emplace_back(id);
}
Id Module::AddCode(spv::Op opcode, std::optional<u32> id) {
return AddCode(std::make_unique<Op>(opcode, id));
}
Id Module::AddDeclaration(std::unique_ptr<Op> op) {
const auto& found{std::find_if(declarations.begin(), declarations.end(),
[&op](const auto& other) { return *other == *op; })};
if (found != declarations.end()) {
return found->get();
}
const auto id = op.get();
declarations.push_back(std::move(op));
bound++;
return id;
}
void Module::AddAnnotation(std::unique_ptr<Op> op) {
annotations.push_back(std::move(op));
}
Id Module::GetGLSLstd450() {
if (!glsl_std_450) {
glsl_std_450 = std::make_unique<Op>(spv::Op::OpExtInstImport, bound++);
glsl_std_450->Add("GLSL.std.450");
}
return glsl_std_450.get();
}
} // namespace Sirit
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