mirror of
https://github.com/yuzu-emu/sirit.git
synced 2024-11-25 00:25:47 +01:00
54 lines
1.4 KiB
Markdown
54 lines
1.4 KiB
Markdown
Sirit
|
|
=====
|
|
A runtime SPIR-V assembler. It aims to ease dynamic SPIR-V code generation
|
|
without calling external applications (like Khronos' `spirv-as`)
|
|
|
|
Its design aims to move code that does not belong in the application to the
|
|
library, without limiting its functionality.
|
|
|
|
What Sirit does for you:
|
|
* Sort declaration opcodes
|
|
* Handle types and constant duplicates
|
|
* Emit SPIR-V opcodes
|
|
|
|
What Sirit won't do for you:
|
|
* Avoid ID duplicates (e.g. emitting the same label twice)
|
|
* Dump code to disk
|
|
* Handle control flow
|
|
* Compile from a higher level language
|
|
|
|
|
|
It's in early stages of development, many instructions are missing since
|
|
they are written manually instead of being generated from a file.
|
|
|
|
Example
|
|
-------
|
|
|
|
```cpp
|
|
class MyModule : public Sirit::Module {
|
|
public:
|
|
MyModule() {}
|
|
~MyModule() = default;
|
|
|
|
void Generate() {
|
|
AddCapability(spv::Capability::Shader);
|
|
SetMemoryModel(spv::AddressingModel::Logical, spv::MemoryModel::GLSL450);
|
|
|
|
auto main_type{TypeFunction(TypeVoid())};
|
|
auto main_func{OpFunction(TypeVoid(), spv::FunctionControlMask::MaskNone, main_type)};
|
|
AddLabel(OpLabel());
|
|
OpReturn();
|
|
OpFunctionEnd();
|
|
|
|
AddEntryPoint(spv::ExecutionModel::Vertex, main_func, "main");
|
|
}
|
|
};
|
|
|
|
// Then...
|
|
|
|
MyModule module;
|
|
module.Generate();
|
|
|
|
std::vector<std::uint32_t> code{module.Assemble()};
|
|
```
|