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autofix Vectors
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‎Lesson_Materials/Vectors/index.html‎

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<html>
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<head>
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<meta charset="utf-8" />
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<link rel="stylesheet" href="../../Static/css/reveal.css" />
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<link
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rel="stylesheet"
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href="../../Static/css/theme/white.css"
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/>
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<link rel="stylesheet" href="../../Static/css/custom.css" />
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<link
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rel="stylesheet"
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href="../../Static/css/atom-one-light.css"
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/>
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<meta charset="utf-8"/>
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<link rel="stylesheet" href="../../Static/css/reveal.css"/>
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<link rel="stylesheet" href="../../Static/css/theme/white.css"/>
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<link rel="stylesheet" href="../../Static/css/custom.css"/>
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<link rel="stylesheet" href="../../Static/css/atom-one-light.css"/>
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<script src="../../node_modules/reveal.js/dist/reveal.js" defer></script>
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<script src="../../node_modules/reveal.js/dist/plugin/markdown.js" defer></script>
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<script src="../../node_modules/reveal.js/dist/plugin/highlight.js" defer></script>
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#### Vec class
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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template &lt;typename dataT, int numElements&gt;
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class vec;
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</code></pre>
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#### Aliases
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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using float4 = vec&lt;float, 4&gt;;
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...
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</code></pre>
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#### Vec constructors
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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</code></pre>
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f2 = sycl::float4{2.0f, 3.0f}; // {2.0f, 3.0f}
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auto f4 = sycl::float4{1.0f, f2, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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</code></pre>
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{0.0f}; // {0.0f, 0.0f, 0.0f, 0.0f}
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</code></pre>
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</div>
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#### Vec operators
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4a = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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auto f4b = sycl::float4{2.0f}; // {2.0f, 2.0f, 2.0f, 2.0f}
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#### Vec types
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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sycl::int2
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sycl::int3
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sycl::int4
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#### Swizzles
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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auto f2 = f4.swizzle&lt;0, 3&gt;(); // {1.0f, 4.0f}
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</code></pre>
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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f4.swizzle&lt;1, 2&gt;() = sycl::float2{9.0f, 9.0f}; // f4 becomes {1.0f, 9.0f, 9.0f, 4.0f}
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</code></pre>
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#### Simple swizzles
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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auto f2 = f4.xw(); // {1.0f, 4.0f}
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</code></pre>
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</div>
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<div class="container">
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<code class="code-100pc"><pre>
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<pre><code class="language-cpp">
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auto f4 = sycl::float4{1.0f, 2.0f, 3.0f, 4.0f}; // {1.0f, 2.0f, 3.0f, 4.0f}
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f4.yz() = sycl::float2{9.0f, 9.0f}; // f4 becomes {1.0f, 9.0f, 9.0f, 4.0f}
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</code></pre>
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<div class="hbox" data-markdown>
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#### Vectorized image convolution performance
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</div>
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<div class="container"data-markdown>
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<div class="container" data-markdown>
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![SYCL](../../Static/images/image_convolution_performance_vectorized.png "SYCL")
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</div>
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</section>

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