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</pre><div class="example-wrap"><pre class="rust ">
<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">device</span>::{<span class="ident">Device</span>};
<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">pipeline</span>::{<span class="ident">ComputePipeline</span>};
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">CStr</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">path</span>::<span class="ident">PathBuf</span>;
<span class="kw">use</span> <span class="ident">shade_runner</span> <span class="kw">as</span> <span class="ident">sr</span>;
<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">descriptor</span>::<span class="ident">pipeline_layout</span>::<span class="ident">PipelineLayout</span>;
<span class="kw">use</span> <span class="ident">shade_runner</span>::{<span class="ident">CompileError</span>, <span class="ident">Layout</span>, <span class="ident">Input</span>, <span class="ident">Output</span>, <span class="ident">CompiledShaders</span>, <span class="ident">Entry</span>, <span class="ident">CompiledShader</span>};
<span class="kw">use</span> <span class="ident">shaderc</span>::<span class="ident">CompileOptions</span>;
<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">pipeline</span>::<span class="ident">shader</span>::{<span class="ident">ShaderModule</span>, <span class="ident">GraphicsEntryPoint</span>, <span class="ident">SpecializationConstants</span>, <span class="ident">SpecializationMapEntry</span>};
<span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">compute</span>::<span class="ident">managed</span>::<span class="ident">handles</span>::<span class="ident">CompuKernelHandle</span>;
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">CompuKernel</span> {
<span class="ident">handle</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">CompuKernelHandle</span><span class="op">></span>,
<span class="ident">compute_pipeline</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span><span class="op"><</span><span class="ident">ComputePipeline</span><span class="op"><</span><span class="ident">PipelineLayout</span><span class="op"><</span><span class="ident">Layout</span><span class="op">></span><span class="op">></span><span class="op">></span><span class="op">></span>,
<span class="ident">compute_kernel_path</span>: <span class="ident">PathBuf</span>,
<span class="ident">name</span>: <span class="ident">String</span>,
<span class="ident">shader</span>: <span class="ident">CompiledShader</span>,
<span class="ident">entry</span>: <span class="ident">Entry</span>,
<span class="ident">shader_module</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">ShaderModule</span><span class="op">></span>,
<span class="ident">device</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">Device</span><span class="op">></span>,
<span class="ident">specialization_constants</span>: <span class="ident">ComputeSpecializationConstants</span>,
}
<span class="kw">impl</span> <span class="ident">CompuKernel</span> {
<span class="kw">fn</span> <span class="ident">get_path</span>(<span class="ident">filename</span>: <span class="ident">String</span>) <span class="op">-</span><span class="op">></span> <span class="ident">PathBuf</span> {
<span class="kw">let</span> <span class="ident">project_root</span> <span class="op">=</span>
<span class="ident">std</span>::<span class="ident">env</span>::<span class="ident">current_dir</span>()
.<span class="ident">expect</span>(<span class="string">"failed to get root directory"</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">compute_path</span> <span class="op">=</span> <span class="ident">project_root</span>.<span class="ident">clone</span>();
<span class="ident">compute_path</span>.<span class="ident">push</span>(<span class="ident">PathBuf</span>::<span class="ident">from</span>(<span class="string">"resources/shaders/"</span>));
<span class="ident">compute_path</span>.<span class="ident">push</span>(<span class="ident">PathBuf</span>::<span class="ident">from</span>(<span class="ident">filename</span>));
<span class="ident">compute_path</span>
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">filename</span>: <span class="ident">String</span>, <span class="ident">device</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">Device</span><span class="op">></span>,
<span class="ident">handle</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">CompuKernelHandle</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">CompuKernel</span> {
<span class="kw">let</span> <span class="ident">compute_path</span> <span class="op">=</span> <span class="ident">CompuKernel</span>::<span class="ident">get_path</span>(<span class="ident">filename</span>.<span class="ident">clone</span>());
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">options</span> <span class="op">=</span> <span class="ident">CompileOptions</span>::<span class="ident">new</span>().<span class="ident">ok_or</span>(<span class="ident">CompileError</span>::<span class="ident">CreateCompiler</span>).<span class="ident">unwrap</span>();
<span class="kw">let</span> <span class="ident">shader</span> <span class="op">=</span> <span class="ident">sr</span>::<span class="ident">load_compute_with_options</span>(<span class="ident">compute_path</span>.<span class="ident">clone</span>(), <span class="ident">options</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to compile"</span>);
<span class="kw">let</span> <span class="ident">entry</span> <span class="op">=</span> <span class="ident">sr</span>::<span class="ident">parse_compute</span>(<span class="kw-2">&</span><span class="ident">shader</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to parse"</span>);
<span class="kw">let</span> <span class="ident">shader_module</span> <span class="op">=</span> <span class="kw">unsafe</span> {
<span class="ident">vulkano</span>::<span class="ident">pipeline</span>::<span class="ident">shader</span>::<span class="ident">ShaderModule</span>::<span class="ident">from_words</span>(<span class="ident">device</span>.<span class="ident">clone</span>(), <span class="kw-2">&</span><span class="ident">shader</span>.<span class="ident">spriv</span>)
}.<span class="ident">unwrap</span>();
<span class="ident">CompuKernel</span> {
<span class="ident">name</span>: <span class="ident">filename</span>,
<span class="ident">handle</span>: <span class="ident">handle</span>,
<span class="ident">device</span>: <span class="ident">device</span>,
<span class="ident">shader</span>: <span class="ident">shader</span>,
<span class="ident">compute_pipeline</span>: <span class="prelude-ty">Option</span>::<span class="prelude-val">None</span>,
<span class="ident">compute_kernel_path</span>: <span class="ident">compute_path</span>,
<span class="ident">entry</span>: <span class="ident">entry</span>,
<span class="ident">shader_module</span>: <span class="ident">shader_module</span>,
<span class="ident">specialization_constants</span>: <span class="ident">ComputeSpecializationConstants</span> {
<span class="ident">first_constant</span>: <span class="number">0</span>,
<span class="ident">second_constant</span>: <span class="number">0</span>,
<span class="ident">third_constant</span>: <span class="number">0.0</span>
}
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_pipeline</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span><span class="op"><</span><span class="ident">ComputePipeline</span><span class="op"><</span><span class="ident">PipelineLayout</span><span class="op"><</span><span class="ident">Layout</span><span class="op">></span><span class="op">></span><span class="op">></span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">compute_pipeline</span>.<span class="ident">clone</span>() {
<span class="prelude-val">Some</span>(<span class="ident">t</span>) <span class="op">=</span><span class="op">></span> <span class="ident">t</span>,
<span class="prelude-val">None</span> <span class="op">=</span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">compute_pipeline</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Arc</span>::<span class="ident">new</span>({
<span class="kw">unsafe</span> {
<span class="ident">ComputePipeline</span>::<span class="ident">new</span>(<span class="self">self</span>.<span class="ident">device</span>.<span class="ident">clone</span>(), <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">shader_module</span>.<span class="ident">compute_entry_point</span>(
<span class="ident">CStr</span>::<span class="ident">from_bytes_with_nul_unchecked</span>(<span class="string">b"main\0"</span>),
<span class="self">self</span>.<span class="ident">entry</span>.<span class="ident">layout</span>.<span class="ident">clone</span>()), <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">specialization_constants</span>,
).<span class="ident">unwrap</span>()
}
}));
<span class="self">self</span>.<span class="ident">compute_pipeline</span>.<span class="ident">clone</span>().<span class="ident">unwrap</span>()
}
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">recompile_kernel</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span><span class="op"><</span><span class="ident">ComputePipeline</span><span class="op"><</span><span class="ident">PipelineLayout</span><span class="op"><</span><span class="ident">shade_runner</span>::<span class="ident">layouts</span>::<span class="ident">Layout</span><span class="op">></span><span class="op">></span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">compile_kernel</span>(<span class="ident">String</span>::<span class="ident">from</span>(<span class="self">self</span>.<span class="ident">compute_kernel_path</span>.<span class="ident">clone</span>().<span class="ident">to_str</span>().<span class="ident">unwrap</span>()))
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">compile_kernel</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">filename</span>: <span class="ident">String</span>) <span class="op">-</span><span class="op">></span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span><span class="op"><</span><span class="ident">ComputePipeline</span><span class="op"><</span><span class="ident">PipelineLayout</span><span class="op"><</span><span class="ident">Layout</span><span class="op">></span><span class="op">></span><span class="op">></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">options</span> <span class="op">=</span> <span class="ident">CompileOptions</span>::<span class="ident">new</span>().<span class="ident">ok_or</span>(<span class="ident">CompileError</span>::<span class="ident">CreateCompiler</span>).<span class="ident">unwrap</span>();
<span class="self">self</span>.<span class="ident">compute_kernel_path</span> <span class="op">=</span> <span class="ident">CompuKernel</span>::<span class="ident">get_path</span>(<span class="ident">filename</span>);
<span class="self">self</span>.<span class="ident">shader</span> <span class="op">=</span>
<span class="ident">sr</span>::<span class="ident">load_compute_with_options</span>(<span class="self">self</span>.<span class="ident">compute_kernel_path</span>.<span class="ident">clone</span>(), <span class="ident">options</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to compile"</span>);
<span class="self">self</span>.<span class="ident">entry</span> <span class="op">=</span>
<span class="ident">sr</span>::<span class="ident">parse_compute</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">shader</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to parse"</span>);
<span class="self">self</span>.<span class="ident">shader_module</span> <span class="op">=</span> <span class="kw">unsafe</span> {
<span class="ident">vulkano</span>::<span class="ident">pipeline</span>::<span class="ident">shader</span>::<span class="ident">ShaderModule</span>::<span class="ident">from_words</span>(<span class="self">self</span>.<span class="ident">device</span>.<span class="ident">clone</span>(), <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">shader</span>.<span class="ident">spriv</span>)
}.<span class="ident">unwrap</span>();
<span class="self">self</span>.<span class="ident">get_pipeline</span>()
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_handle</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">CompuKernelHandle</span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">handle</span>.<span class="ident">clone</span>()
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_name</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">String</span> {
<span class="self">self</span>.<span class="ident">name</span>.<span class="ident">clone</span>()
}
}
<span class="attribute">#[<span class="ident">repr</span>(<span class="ident">C</span>)]</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Default</span>, <span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ComputeSpecializationConstants</span> {
<span class="ident">first_constant</span>: <span class="ident">i32</span>,
<span class="ident">second_constant</span>: <span class="ident">u32</span>,
<span class="ident">third_constant</span>: <span class="ident">f32</span>,
}
<span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">SpecializationConstants</span> <span class="kw">for</span> <span class="ident">ComputeSpecializationConstants</span> {
<span class="kw">fn</span> <span class="ident">descriptors</span>() <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="lifetime">'static</span> [<span class="ident">SpecializationMapEntry</span>] {
<span class="kw">static</span> <span class="ident">DESCRIPTORS</span>: [<span class="ident">SpecializationMapEntry</span>; <span class="number">3</span>] <span class="op">=</span> [
<span class="ident">SpecializationMapEntry</span> {
<span class="ident">constant_id</span>: <span class="number">0</span>,
<span class="ident">offset</span>: <span class="number">0</span>,
<span class="ident">size</span>: <span class="number">4</span>,
},
<span class="ident">SpecializationMapEntry</span> {
<span class="ident">constant_id</span>: <span class="number">1</span>,
<span class="ident">offset</span>: <span class="number">4</span>,
<span class="ident">size</span>: <span class="number">4</span>,
},
<span class="ident">SpecializationMapEntry</span> {
<span class="ident">constant_id</span>: <span class="number">2</span>,
<span class="ident">offset</span>: <span class="number">8</span>,
<span class="ident">size</span>: <span class="number">4</span>,
},
];
<span class="kw-2">&</span><span class="ident">DESCRIPTORS</span>
}
}
</pre></div>
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