vkml 0.0.3

High-level Vulkan-based machine learning library
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use onnx_extractor::DataType;
use vk::ComponentTypeKHR as Ct;
use vulkanalia::vk;

/// Returns None for unknown / unsupported mappings
pub fn vk_to_onnx_dtype(t: vk::ComponentTypeKHR) -> Option<DataType> {
    match t {
        Ct::SINT8 => Some(DataType::Int8),
        Ct::UINT8 => Some(DataType::Uint8),
        Ct::SINT16 => Some(DataType::Int16),
        Ct::UINT16 => Some(DataType::Uint16),
        Ct::SINT32 => Some(DataType::Int32),
        Ct::UINT32 => Some(DataType::Uint32),
        Ct::SINT64 => Some(DataType::Int64),
        Ct::UINT64 => Some(DataType::Uint64),
        Ct::FLOAT16 => Some(DataType::Float16),
        Ct::FLOAT32 => Some(DataType::Float),
        Ct::FLOAT64 => Some(DataType::Double),
        Ct::BFLOAT16 => Some(DataType::Bfloat16),
        Ct::FLOAT8_E4M3_EXT => Some(DataType::Float8e4m3fn),
        Ct::FLOAT8_E5M2_EXT => Some(DataType::Float8e5m2),
        _ => None,
    }
}

pub fn vk_bool32_to_bool(value: vk::Bool32) -> bool {
    value == vk::TRUE
}

pub fn bool_to_vk_bool32(value: bool) -> vk::Bool32 {
    if value { vk::TRUE } else { vk::FALSE }
}

/// Returns the Slang source code type string for a given ONNX DataType
pub fn onnx_dtype_to_slang_type(dtype: DataType) -> &'static str {
    match dtype {
        DataType::Float => "float",
        DataType::Float16 => "half",
        DataType::Double => "double",
        DataType::Int8 => "int8_t",
        DataType::Uint8 => "uint8_t",
        DataType::Int16 => "int16_t",
        DataType::Uint16 => "uint16_t",
        DataType::Int32 => "int",
        DataType::Uint32 => "uint",
        DataType::Int64 => "int64_t",
        DataType::Uint64 => "uint64_t",
        DataType::Bool => "bool",
        DataType::Bfloat16 => "bfloat16_t",
        _ => unimplemented!(
            "Slang string mapping not implemented for ONNX datatype {:?}",
            dtype
        ),
    }
}