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59 lines
1.5 KiB
Markdown
59 lines
1.5 KiB
Markdown
Sirit
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=====
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A runtime SPIR-V assembler. It aims to ease dynamic SPIR-V code generation
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without calling external applications (like Khronos' `spirv-as`)
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Its design aims to move code that does not belong to the application in the
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library without, limitting its functionality.
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What it does for you:
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* Sort declaration opcodes
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* Handle types and constant duplicates
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* Emit SPIR-V opcodes
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What it will try to do in the future:
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* Add capabilities automatically
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* Optimize code
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What does not do for you:
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* Avoid ID duplicates (emitting the same instruction twice)
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* Dump code to disk
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* Handle code blocks/branches
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* Compile from a higher level language
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It's in early stages of development, many instructions are missing since
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they are written manually instead of being generated from a file.
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Example
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-------
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```cpp
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class MyModule : public Sirit::Module {
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public:
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MyModule() {}
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~MyModule() = default;
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void Generate() {
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AddCapability(spv::Capability::Shader);
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SetMemoryModel(spv::AddressingModel::Logical, spv::MemoryModel::GLSL450);
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auto main_type{TypeFunction(TypeVoid())};
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auto main_func{Emit(Function(TypeVoid(), spv::FunctionControlMask::MaskNone, main_type))};
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Emit(Label());
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Emit(Return());
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Emit(FunctionEnd());
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AddEntryPoint(spv::ExecutionModel::Vertex, main_func, "main");
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}
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};
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// Then...
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MyModule module;
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module.Generate();
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module.Optimize(2);
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std::vector<std::uint8_t> code{module.Assembly()};
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```
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