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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a></div>
<h1>dmxeq.c File Reference</h1><code>#include "<a class="el" href="dmx_8h-source.html">dmx.h</a>"</code><br>
<code>#include "<a class="el" href="dmxeq_8h-source.html">dmxeq.h</a>"</code><br>
<code>#include "<a class="el" href="dmxinput_8h-source.html">dmxinput.h</a>"</code><br>
<code>#include "<a class="el" href="dmxlog_8h-source.html">dmxlog.h</a>"</code><br>
<code>#include "<a class="el" href="dmxdpms_8h-source.html">dmxdpms.h</a>"</code><br>
<code>#include "inputstr.h"</code><br>
<code>#include "scrnintstr.h"</code><br>
<code>#include "XIproto.h"</code><br>
<code>#include "extinit.h"</code><br>
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<tr><td colspan=2><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>struct </td><td class="memItemRight" valign=bottom><a class="el" href="struct__Event.html">_Event</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>struct </td><td class="memItemRight" valign=bottom><a class="el" href="struct__EventQueue.html">_EventQueue</a></td></tr>
<tr><td colspan=2><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>#define </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a4">QUEUE_SIZE</a> 256</td></tr>
<tr><td colspan=2><br><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__Event.html">_Event</a> </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a5">EventRec</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__Event.html">_Event</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a6">EventPtr</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__EventQueue.html">_EventQueue</a> </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a7">EventQueueRec</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__EventQueue.html">_EventQueue</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a8">EventQueuePtr</a></td></tr>
<tr><td colspan=2><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a13">dmxeqEnqueue</a> (xEvent *e)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a14">dmxeqSwitchScreen</a> (ScreenPtr pScreen, Bool fromDIX)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxeq_8c.html#a16">dmxeqProcessInputEvents</a> (void)</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
This file provides an event queue that knows about XInput events. All of the code is based on mi/mieq.c and was modified as little as possible to provide XInput event support (the copyright and some of the comments are from The Open Group, Keith Packard, MIT X Consortium). (Another example of similar code is provided in hw/xfree86/common/xf86Xinput.c.)<hr><h2>Define Documentation</h2>
<a class="anchor" name="a4" doxytag="dmxeq.c::QUEUE_SIZE" ></a><p>
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<td class="md" nowrap valign="top"> #define QUEUE_SIZE 256
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The size of our queue. (The queue provided by mi/mieq.c has a size of 256.) </td>
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<hr><h2>Typedef Documentation</h2>
<a class="anchor" name="a6" doxytag="dmxeq.c::EventPtr" ></a><p>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__Event.html">_Event</a> * <a class="el" href="struct__Event.html">EventPtr</a>
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Information about the event. </td>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__EventQueue.html">_EventQueue</a> * <a class="el" href="struct__EventQueue.html">EventQueuePtr</a>
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Event queue. </td>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__EventQueue.html">_EventQueue</a> <a class="el" href="struct__EventQueue.html">EventQueueRec</a>
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Event queue. </td>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__Event.html">_Event</a> <a class="el" href="struct__Event.html">EventRec</a>
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Information about the event. </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="a13" doxytag="dmxeq.c::dmxeqEnqueue" ></a><p>
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<td class="md" nowrap valign="top"> void dmxeqEnqueue </td>
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This function adds an event to the end of the queue. If the event is an XInput event, then the next event (the valuator event) is also stored in the queue. If the new event has a time before the time of the last event currently on the queue, then the time is updated for the new event.<p>
Must be reentrant with ProcessInputEvents. Assumption: dmxeqEnqueue will never be interrupted. If this is called from both signal handlers and regular code, make sure the signal is suspended when called from regular code. </td>
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<td class="md" nowrap valign="top"> void dmxeqProcessInputEvents </td>
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This function is called from <a class="el" href="dmxinput_8c.html#a2">ProcessInputEvents()</a> to remove events from the queue and process them. </td>
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<td class="md" nowrap valign="top"> void dmxeqSwitchScreen </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">ScreenPtr </td>
<td class="mdname" nowrap> <em>pScreen</em>, </td>
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<td class="md">) </td>
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Make <em>pScreen</em> the new screen for enqueueing events. If <em>fromDIX</em> is TRUE, also make <em>pScreen</em> the new screen for dequeuing events. </td>
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