<!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 `/home/mrh/source/vulkano/vulkano/src/pipeline/vertex/impl_vertex.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>impl_vertex.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 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class="comment">// Copyright (c) 2017 The vulkano developers</span> <span class="comment">// Licensed under the Apache License, Version 2.0</span> <span class="comment">// <LICENSE-APACHE or</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT</span> <span class="comment">// license <LICENSE-MIT or http://opensource.org/licenses/MIT>,</span> <span class="comment">// at your option. All files in the project carrying such</span> <span class="comment">// notice may not be copied, modified, or distributed except</span> <span class="comment">// according to those terms.</span> <span class="kw">use</span> <span class="ident">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">VertexMemberTy</span>; <span class="doccomment">/// Implements the `Vertex` trait on a struct.</span> <span class="comment">// TODO: add example</span> <span class="attribute">#[<span class="ident">macro_export</span>]</span> <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">impl_vertex</span> { (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">out</span>:<span class="ident">ty</span> $(, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">member</span>:<span class="ident">ident</span>)<span class="kw-2">*</span>) <span class="op">=</span><span class="op">></span> ( <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unsafe_code</span>)]</span> <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">Vertex</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">out</span> { <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> <span class="kw">fn</span> <span class="ident">member</span>(<span class="ident">name</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">VertexMemberInfo</span><span class="op">></span> { <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ptr</span>; <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unused_imports</span>)]</span> <span class="kw">use</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">format</span>::<span class="ident">Format</span>; <span class="kw">use</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">VertexMemberInfo</span>; <span class="kw">use</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">VertexMemberTy</span>; <span class="kw">use</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">pipeline</span>::<span class="ident">vertex</span>::<span class="ident">VertexMember</span>; $( <span class="kw">if</span> <span class="ident">name</span> <span class="op">=</span><span class="op">=</span> <span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">member</span>) { <span class="kw">let</span> <span class="ident">dummy</span> <span class="op">=</span> <span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">out</span><span class="op">></span>::<span class="ident">default</span>(); <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">f</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">VertexMember</span><span class="op">></span>(<span class="kw">_</span>: <span class="kw-2">&</span><span class="ident">T</span>) <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="ident">T</span>::<span class="ident">format</span>() } <span class="kw">let</span> (<span class="ident">ty</span>, <span class="ident">array_size</span>) <span class="op">=</span> <span class="ident">f</span>(<span class="kw-2">&</span><span class="ident">dummy</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">member</span>); <span class="kw">let</span> <span class="ident">dummy_ptr</span> <span class="op">=</span> (<span class="kw-2">&</span><span class="ident">dummy</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="kw">_</span>; <span class="kw">let</span> <span class="ident">member_ptr</span> <span class="op">=</span> (<span class="kw-2">&</span><span class="ident">dummy</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">member</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="kw">_</span>; <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">VertexMemberInfo</span> { <span class="ident">offset</span>: <span class="ident">member_ptr</span> <span class="kw">as</span> <span class="ident">usize</span> <span class="op">-</span> <span class="ident">dummy_ptr</span> <span class="kw">as</span> <span class="ident">usize</span>, <span class="ident">ty</span>: <span class="ident">ty</span>, <span class="ident">array_size</span>: <span class="ident">array_size</span>, }); } )<span class="op">*</span> <span class="prelude-val">None</span> } } ) } <span class="doccomment">/// Trait for data types that can be used as vertex members. Used by the `impl_vertex!` macro.</span> <span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">trait</span> <span class="ident">VertexMember</span> { <span class="doccomment">/// Returns the format and array size of the member.</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>); } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">i8</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">I8</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">u8</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">U8</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">i16</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">I16</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">u16</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">U16</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">i32</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">I32</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">u32</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">U32</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">f32</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">F32</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span> <span class="ident">VertexMember</span> <span class="kw">for</span> <span class="ident">f64</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { (<span class="ident">VertexMemberTy</span>::<span class="ident">F64</span>, <span class="number">1</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">VertexMember</span> <span class="kw">for</span> (<span class="ident">T</span>,) <span class="kw">where</span> <span class="ident">T</span>: <span class="ident">VertexMember</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="op"><</span><span class="ident">T</span> <span class="kw">as</span> <span class="ident">VertexMember</span><span class="op">></span>::<span class="ident">format</span>() } } <span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">VertexMember</span> <span class="kw">for</span> (<span class="ident">T</span>, <span class="ident">T</span>) <span class="kw">where</span> <span class="ident">T</span>: <span class="ident">VertexMember</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="kw">let</span> (<span class="ident">ty</span>, <span class="ident">sz</span>) <span class="op">=</span> <span class="op"><</span><span class="ident">T</span> <span class="kw">as</span> <span class="ident">VertexMember</span><span class="op">></span>::<span class="ident">format</span>(); (<span class="ident">ty</span>, <span class="ident">sz</span> <span class="op">*</span> <span class="number">2</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">VertexMember</span> <span class="kw">for</span> (<span class="ident">T</span>, <span class="ident">T</span>, <span class="ident">T</span>) <span class="kw">where</span> <span class="ident">T</span>: <span class="ident">VertexMember</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="kw">let</span> (<span class="ident">ty</span>, <span class="ident">sz</span>) <span class="op">=</span> <span class="op"><</span><span class="ident">T</span> <span class="kw">as</span> <span class="ident">VertexMember</span><span class="op">></span>::<span class="ident">format</span>(); (<span class="ident">ty</span>, <span class="ident">sz</span> <span class="op">*</span> <span class="number">3</span>) } } <span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">VertexMember</span> <span class="kw">for</span> (<span class="ident">T</span>, <span class="ident">T</span>, <span class="ident">T</span>, <span class="ident">T</span>) <span class="kw">where</span> <span class="ident">T</span>: <span class="ident">VertexMember</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="kw">let</span> (<span class="ident">ty</span>, <span class="ident">sz</span>) <span class="op">=</span> <span class="op"><</span><span class="ident">T</span> <span class="kw">as</span> <span class="ident">VertexMember</span><span class="op">></span>::<span class="ident">format</span>(); (<span class="ident">ty</span>, <span class="ident">sz</span> <span class="op">*</span> <span class="number">4</span>) } } <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">impl_vm_array</span> { (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>:<span class="ident">expr</span>) <span class="op">=</span><span class="op">></span> ( <span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">VertexMember</span> <span class="kw">for</span> [<span class="ident">T</span>; <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>] <span class="kw">where</span> <span class="ident">T</span>: <span class="ident">VertexMember</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">format</span>() <span class="op">-</span><span class="op">></span> (<span class="ident">VertexMemberTy</span>, <span class="ident">usize</span>) { <span class="kw">let</span> (<span class="ident">ty</span>, <span class="ident">sz</span>) <span class="op">=</span> <span class="op"><</span><span class="ident">T</span> <span class="kw">as</span> <span class="ident">VertexMember</span><span class="op">></span>::<span class="ident">format</span>(); (<span class="ident">ty</span>, <span class="ident">sz</span> <span class="op">*</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>) } } ); } <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">1</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">2</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">3</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">4</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">5</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">6</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">7</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">8</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">9</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">10</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">11</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">12</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">13</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">14</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">15</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">16</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">32</span>); <span class="macro">impl_vm_array</span><span class="macro">!</span>(<span class="number">64</span>); </pre></div> </section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: 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