1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>drm_mode_legacy_fb_format</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux DRM Developer's Guide"><link rel="up" href="drm-kms-init.html#idp1123898740" title="KMS API Functions"><link rel="prev" href="API-drm-crtc-check-viewport.html" title="drm_crtc_check_viewport"><link rel="next" href="API-drm-property-create.html" title="drm_property_create"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">drm_mode_legacy_fb_format</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-drm-crtc-check-viewport.html">Prev</a>&#160;</td><th width="60%" align="center">KMS API Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-drm-property-create.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-drm-mode-legacy-fb-format"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>drm_mode_legacy_fb_format &#8212; 
2     compute drm fourcc code from legacy description
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">uint32_t <b class="fsfunc">drm_mode_legacy_fb_format </b>(</code></td><td>uint32_t <var class="pdparam">bpp</var>, </td></tr><tr><td>&#160;</td><td>uint32_t <var class="pdparam">depth</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124236700"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>bpp</code></em></span></dt><dd><p>
4     bits per pixels
5    </p></dd><dt><span class="term"><em class="parameter"><code>depth</code></em></span></dt><dd><p>
6     bit depth per pixel
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124239276"></a><h2>Description</h2><p>
8   Computes a drm fourcc pixel format code for the given <em class="parameter"><code>bpp</code></em>/<em class="parameter"><code>depth</code></em> values.
9   Useful in fbdev emulation code, since that deals in those values.
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