134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
/* This file is part of the sirit project.
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* Copyright (c) 2018 ReinUsesLisp
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* This software may be used and distributed according to the terms of the GNU
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* Lesser General Public License version 2.1 or any later version.
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*/
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#include "sirit/sirit.h"
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#include "common_types.h"
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#include "op.h"
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#include "stream.h"
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#include <algorithm>
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#include <cassert>
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namespace Sirit {
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template <typename T>
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static void WriteEnum(Stream& stream, spv::Op opcode, T value) {
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Op op{opcode};
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op.Add(static_cast<u32>(value));
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op.Write(stream);
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}
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template <typename T> static void WriteSet(Stream& stream, const T& set) {
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for (const auto& item : set) {
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item->Write(stream);
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}
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}
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Module::Module(u32 version) : version(version) {}
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Module::~Module() = default;
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std::vector<u8> Module::Assemble() const {
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std::vector<u8> bytes;
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Stream stream{bytes};
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stream.Write(spv::MagicNumber);
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stream.Write(version);
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stream.Write(GENERATOR_MAGIC_NUMBER);
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stream.Write(bound);
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stream.Write(static_cast<u32>(0));
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for (const auto capability : capabilities) {
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WriteEnum(stream, spv::Op::OpCapability, capability);
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}
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if (glsl_std_450) {
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glsl_std_450->Write(stream);
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}
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// TODO write ext inst imports
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Op memory_model_ref{spv::Op::OpMemoryModel};
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memory_model_ref.Add(static_cast<u32>(addressing_model));
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memory_model_ref.Add(static_cast<u32>(memory_model));
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memory_model_ref.Write(stream);
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WriteSet(stream, entry_points);
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// TODO write execution mode
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WriteSet(stream, debug);
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WriteSet(stream, annotations);
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WriteSet(stream, declarations);
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WriteSet(stream, global_variables);
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WriteSet(stream, code);
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return bytes;
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}
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void Module::AddCapability(spv::Capability capability) {
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capabilities.insert(capability);
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}
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void Module::SetMemoryModel(spv::AddressingModel addressing_model,
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spv::MemoryModel memory_model) {
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this->addressing_model = addressing_model;
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this->memory_model = memory_model;
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}
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void Module::AddEntryPoint(spv::ExecutionModel execution_model, Id entry_point,
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const std::string& name,
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const std::vector<Id>& interfaces) {
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auto op{std::make_unique<Op>(spv::Op::OpEntryPoint)};
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op->Add(static_cast<u32>(execution_model));
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op->Add(entry_point);
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op->Add(name);
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op->Add(interfaces);
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entry_points.push_back(std::move(op));
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}
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Id Module::Emit(Id op) {
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code.push_back(op);
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return op;
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}
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Id Module::AddGlobalVariable(Id variable) {
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assert(variable);
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global_variables.push_back(variable);
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return variable;
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}
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Id Module::AddCode(std::unique_ptr<Op> op) {
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const auto id = op.get();
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code_store.push_back(std::move(op));
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return id;
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}
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Id Module::AddCode(spv::Op opcode, std::optional<u32> id) {
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return AddCode(std::make_unique<Op>(opcode, id));
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}
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Id Module::AddDeclaration(std::unique_ptr<Op> op) {
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const auto& found{
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std::find_if(declarations.begin(), declarations.end(),
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[&op](const auto& other) { return *other == *op; })};
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if (found != declarations.end()) {
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return found->get();
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}
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const auto id = op.get();
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declarations.push_back(std::move(op));
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bound++;
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return id;
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}
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void Module::AddAnnotation(std::unique_ptr<Op> op) {
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const auto id = op.get();
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annotations.push_back(std::move(op));
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}
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Id Module::GetGLSLstd450() {
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if (!glsl_std_450) {
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glsl_std_450 = std::make_unique<Op>(spv::Op::OpExtInstImport, bound++);
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}
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return glsl_std_450.get();
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}
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} // namespace Sirit
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