<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `src/compute/managed/compu_buffer.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>compu_buffer.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../../light.css" id="themeStyle"><script src="../../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../../sfml_rust/index.html'><div class='logo-container'><img src='../../../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../../settings.html"><img src="../../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><div class="example-wrap"><pre class="rust ">
<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">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">buffer</span>::{<span class="ident">CpuAccessibleBuffer</span>, <span class="ident">BufferUsage</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">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">vulkano</span>::<span class="ident">descriptor</span>::<span class="ident">descriptor_set</span>::{<span class="ident">PersistentDescriptorSet</span>, <span class="ident">PersistentDescriptorSetBuf</span>};
<span class="kw">use</span> <span class="ident">image</span>::<span class="ident">ImageBuffer</span>;
<span class="kw">use</span> <span class="ident">image</span>::<span class="ident">Rgba</span>;
<span class="kw">use</span> <span class="ident">shade_runner</span>::<span class="ident">Layout</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">CompuBufferHandle</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">CompuBuffers</span> {
<span class="ident">dimensions</span>: (<span class="ident">u32</span>, <span class="ident">u32</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">CompuBufferHandle</span><span class="op">></span>,
<span class="ident">io_buffers</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Arc</span><span class="op"><</span><span class="ident">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u8</span>]<span class="op">></span><span class="op">></span><span class="op">></span>,
<span class="ident">settings_buffer</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u32</span>]<span class="op">></span><span class="op">></span>,
}
<span class="kw">impl</span> <span class="ident">CompuBuffers</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</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">data</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>,
<span class="ident">dimensions</span>: (<span class="ident">u32</span>, <span class="ident">u32</span>), <span class="ident">stride</span>: <span class="ident">u32</span>,
<span class="ident">handle</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">CompuBufferHandle</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">CompuBuffers</span> {
<span class="kw">let</span> <span class="ident">data_length</span> <span class="op">=</span> <span class="ident">dimensions</span>.<span class="number">0</span> <span class="op">*</span> <span class="ident">dimensions</span>.<span class="number">1</span> <span class="op">*</span> <span class="ident">stride</span>;
<span class="kw">let</span> <span class="ident">input_buffer</span> <span class="op">=</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buff</span> <span class="op">=</span> <span class="ident">data</span>.<span class="ident">iter</span>();
<span class="kw">let</span> <span class="ident">data_iter</span> <span class="op">=</span> (<span class="number">0</span>..<span class="ident">data_length</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">n</span><span class="op">|</span> <span class="kw-2">*</span>(<span class="ident">buff</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>()));
<span class="ident">CpuAccessibleBuffer</span>::<span class="ident">from_iter</span>(<span class="ident">device</span>.<span class="ident">clone</span>(), <span class="ident">BufferUsage</span>::<span class="ident">all</span>(), <span class="ident">data_iter</span>).<span class="ident">unwrap</span>()
};
<span class="kw">let</span> <span class="ident">output_buffer</span> <span class="op">=</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buff</span> <span class="op">=</span> <span class="ident">data</span>.<span class="ident">iter</span>();
<span class="kw">let</span> <span class="ident">data_iter</span> <span class="op">=</span> (<span class="number">0</span>..<span class="ident">data_length</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">n</span><span class="op">|</span> <span class="kw-2">*</span>(<span class="ident">buff</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>()));
<span class="ident">CpuAccessibleBuffer</span>::<span class="ident">from_iter</span>(<span class="ident">device</span>.<span class="ident">clone</span>(), <span class="ident">BufferUsage</span>::<span class="ident">all</span>(), <span class="ident">data_iter</span>).<span class="ident">unwrap</span>()
};
<span class="comment">// Settings buffer which holds i32's</span>
<span class="comment">// TODO: Compile macros into the kernel eventually to index them</span>
<span class="kw">let</span> <span class="ident">settings_buffer</span> <span class="op">=</span> {
<span class="kw">let</span> <span class="ident">vec</span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">dimensions</span>.<span class="number">0</span>, <span class="ident">dimensions</span>.<span class="number">1</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buff</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">iter</span>();
<span class="kw">let</span> <span class="ident">data_iter</span> <span class="op">=</span>
(<span class="number">0</span>..<span class="number">2</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">n</span><span class="op">|</span> <span class="kw-2">*</span>(<span class="ident">buff</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>()));
<span class="ident">CpuAccessibleBuffer</span>::<span class="ident">from_iter</span>(<span class="ident">device</span>.<span class="ident">clone</span>(),
<span class="ident">BufferUsage</span>::<span class="ident">all</span>(),
<span class="ident">data_iter</span>).<span class="ident">unwrap</span>()
};
<span class="ident">CompuBuffers</span> {
<span class="ident">dimensions</span>: <span class="ident">dimensions</span>,
<span class="ident">device</span>: <span class="ident">device</span>.<span class="ident">clone</span>(),
<span class="ident">handle</span>: <span class="ident">handle</span>,
<span class="ident">io_buffers</span>: <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">input_buffer</span>, <span class="ident">output_buffer</span>],
<span class="ident">settings_buffer</span>: <span class="ident">settings_buffer</span>,
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_size</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> (<span class="ident">u32</span>, <span class="ident">u32</span>) {
<span class="self">self</span>.<span class="ident">dimensions</span>
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_descriptor_set</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">compute_pipeline</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="op">></span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">PersistentDescriptorSet</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="ident">PersistentDescriptorSetBuf</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">vulkano</span>::<span class="ident">buffer</span>::<span class="ident">cpu_access</span>::<span class="ident">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u8</span>]<span class="op">></span><span class="op">></span><span class="op">></span>),
<span class="ident">PersistentDescriptorSetBuf</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">vulkano</span>::<span class="ident">buffer</span>::<span class="ident">cpu_access</span>::<span class="ident">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u8</span>]<span class="op">></span><span class="op">></span><span class="op">></span>),
<span class="ident">PersistentDescriptorSetBuf</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">vulkano</span>::<span class="ident">buffer</span>::<span class="ident">cpu_access</span>::<span class="ident">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u32</span>]<span class="op">></span><span class="op">></span><span class="op">></span>)<span class="op">></span><span class="op">></span> {
<span class="ident">Arc</span>::<span class="ident">new</span>(<span class="ident">PersistentDescriptorSet</span>::<span class="ident">start</span>(<span class="ident">compute_pipeline</span>.<span class="ident">clone</span>(), <span class="number">0</span>)
.<span class="ident">add_buffer</span>(<span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">clone</span>()).<span class="ident">unwrap</span>()
.<span class="ident">add_buffer</span>(<span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">1</span>).<span class="ident">unwrap</span>().<span class="ident">clone</span>()).<span class="ident">unwrap</span>()
.<span class="ident">add_buffer</span>(<span class="self">self</span>.<span class="ident">settings_buffer</span>.<span class="ident">clone</span>()).<span class="ident">unwrap</span>()
.<span class="ident">build</span>().<span class="ident">unwrap</span>())
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">read_output_buffer</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ImageBuffer</span><span class="op"><</span><span class="ident">Rgba</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>, <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">xy</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_size</span>();
<span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">1</span>).<span class="ident">unwrap</span>().<span class="ident">write</span>().<span class="ident">unwrap</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">x</span><span class="op">|</span> <span class="ident">x</span>);
<span class="kw">let</span> <span class="ident">data_buffer_content</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">1</span>).<span class="ident">unwrap</span>().<span class="ident">read</span>().<span class="ident">unwrap</span>();
<span class="ident">ImageBuffer</span>::<span class="ident">from_fn</span>(<span class="ident">xy</span>.<span class="number">0</span>, <span class="ident">xy</span>.<span class="number">1</span>, <span class="op">|</span><span class="ident">x</span>, <span class="ident">y</span><span class="op">|</span> {
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">data_buffer_content</span>[((<span class="ident">xy</span>.<span class="number">0</span> <span class="op">*</span> <span class="ident">y</span> <span class="op">+</span> <span class="ident">x</span>) <span class="op">*</span> <span class="number">4</span> <span class="op">+</span> <span class="number">0</span>) <span class="kw">as</span> <span class="ident">usize</span>] <span class="kw">as</span> <span class="ident">u8</span>;
<span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="ident">data_buffer_content</span>[((<span class="ident">xy</span>.<span class="number">0</span> <span class="op">*</span> <span class="ident">y</span> <span class="op">+</span> <span class="ident">x</span>) <span class="op">*</span> <span class="number">4</span> <span class="op">+</span> <span class="number">1</span>) <span class="kw">as</span> <span class="ident">usize</span>] <span class="kw">as</span> <span class="ident">u8</span>;
<span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">data_buffer_content</span>[((<span class="ident">xy</span>.<span class="number">0</span> <span class="op">*</span> <span class="ident">y</span> <span class="op">+</span> <span class="ident">x</span>) <span class="op">*</span> <span class="number">4</span> <span class="op">+</span> <span class="number">2</span>) <span class="kw">as</span> <span class="ident">usize</span>] <span class="kw">as</span> <span class="ident">u8</span>;
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">data_buffer_content</span>[((<span class="ident">xy</span>.<span class="number">0</span> <span class="op">*</span> <span class="ident">y</span> <span class="op">+</span> <span class="ident">x</span>) <span class="op">*</span> <span class="number">4</span> <span class="op">+</span> <span class="number">3</span>) <span class="kw">as</span> <span class="ident">usize</span>] <span class="kw">as</span> <span class="ident">u8</span>;
<span class="ident">image</span>::<span class="ident">Rgba</span>([<span class="ident">r</span>, <span class="ident">g</span>, <span class="ident">b</span>, <span class="ident">a</span>])
})
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_input_buffer</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">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u8</span>]<span class="op">></span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">clone</span>()
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_output_buffer</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">CpuAccessibleBuffer</span><span class="op"><</span>[<span class="ident">u8</span>]<span class="op">></span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">io_buffers</span>.<span class="ident">get</span>(<span class="number">1</span>).<span class="ident">unwrap</span>().<span class="ident">clone</span>()
}
}
</pre></div>
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