1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>drm_gtf_mode_complex</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-mode-setting.html#idp1123353068" title="Display Modes Function Reference"><link rel="prev" href="API-drm-cvt-mode.html" title="drm_cvt_mode"><link rel="next" href="API-drm-gtf-mode.html" title="drm_gtf_mode"></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_gtf_mode_complex</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-drm-cvt-mode.html">Prev</a>&#160;</td><th width="60%" align="center">Display Modes Function Reference</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-drm-gtf-mode.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-drm-gtf-mode-complex"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>drm_gtf_mode_complex &#8212; 
2     create the modeline based on the full GTF algorithm
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">struct drm_display_mode * <b class="fsfunc">drm_gtf_mode_complex </b>(</code></td><td>struct drm_device * <var class="pdparam">dev</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">hdisplay</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">vdisplay</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">vrefresh</var>, </td></tr><tr><td>&#160;</td><td>bool <var class="pdparam">interlaced</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">margins</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">GTF_M</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">GTF_2C</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">GTF_K</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">GTF_2J</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123421652"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
4     drm device
5    </p></dd><dt><span class="term"><em class="parameter"><code>hdisplay</code></em></span></dt><dd><p>
6     hdisplay size
7    </p></dd><dt><span class="term"><em class="parameter"><code>vdisplay</code></em></span></dt><dd><p>
8     vdisplay size
9    </p></dd><dt><span class="term"><em class="parameter"><code>vrefresh</code></em></span></dt><dd><p>
10     vrefresh rate.
11    </p></dd><dt><span class="term"><em class="parameter"><code>interlaced</code></em></span></dt><dd><p>
12     whether to compute an interlaced mode
13    </p></dd><dt><span class="term"><em class="parameter"><code>margins</code></em></span></dt><dd><p>
14     desired margin (borders) size
15    </p></dd><dt><span class="term"><em class="parameter"><code>GTF_M</code></em></span></dt><dd><p>
16     extended GTF formula parameters
17    </p></dd><dt><span class="term"><em class="parameter"><code>GTF_2C</code></em></span></dt><dd><p>
18     extended GTF formula parameters
19    </p></dd><dt><span class="term"><em class="parameter"><code>GTF_K</code></em></span></dt><dd><p>
20     extended GTF formula parameters
21    </p></dd><dt><span class="term"><em class="parameter"><code>GTF_2J</code></em></span></dt><dd><p>
22     extended GTF formula parameters
23    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123432492"></a><h2>Description</h2><p>
24   GTF feature blocks specify C and J in multiples of 0.5, so we pass them
25   in here multiplied by two.  For a C of 40, pass in 80.
26</p></div><div class="refsect1"><a name="idp1123433228"></a><h2>Returns</h2><p>
27   The modeline based on the full GTF algorithm stored in a drm_display_mode object.
28   The display mode object is allocated with <code class="function">drm_mode_create</code>. Returns NULL
29   when no mode could be allocated.
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