Mercurial > audio-send

     1 <?xml version="1.0" encoding="utf-8"?>

     2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

     3                "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

     4 <html xmlns="http://www.w3.org/1999/xhtml"

     5 lang="en" xml:lang="en">

     6 <head>

     7 <title>send.c</title>

     8 <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

     9 <meta name="generator" content="Org-mode"/>

    10 <meta name="generated" content="2011-10-20 15:48:47 MST"/>

    11 <meta name="author" content="Robert McIntyre"/>

    12 <meta name="description" content="some code I wrote to extend open-al"/>

    13 <meta name="keywords" content=""/>

    14 <style type="text/css">

    15  <!--/*--><![CDATA[/*><!--*/

    16   html { font-family: Times, serif; font-size: 12pt; }

    17   .title  { text-align: center; }

    18   .todo   { color: red; }

    19   .done   { color: green; }

    20   .tag    { background-color: #add8e6; font-weight:normal }

    21   .target { }

    22   .timestamp { color: #bebebe; }

    23   .timestamp-kwd { color: #5f9ea0; }

    24   .right  {margin-left:auto; margin-right:0px;  text-align:right;}

    25   .left   {margin-left:0px;  margin-right:auto; text-align:left;}

    26   .center {margin-left:auto; margin-right:auto; text-align:center;}

    27   p.verse { margin-left: 3% }

    28   pre {

    29 	border: 1pt solid #AEBDCC;

    30 	background-color: #F3F5F7;

    31 	padding: 5pt;

    32 	font-family: courier, monospace;

    33         font-size: 90%;

    34         overflow:auto;

    35   }

    36   table { border-collapse: collapse; }

    37   td, th { vertical-align: top;  }

    38   th.right  { text-align:center;  }

    39   th.left   { text-align:center;   }

    40   th.center { text-align:center; }

    41   td.right  { text-align:right;  }

    42   td.left   { text-align:left;   }

    43   td.center { text-align:center; }

    44   dt { font-weight: bold; }

    45   div.figure { padding: 0.5em; }

    46   div.figure p { text-align: center; }

    47   textarea { overflow-x: auto; }

    48   .linenr { font-size:smaller }

    49   .code-highlighted {background-color:#ffff00;}

    50   .org-info-js_info-navigation { border-style:none; }

    51   #org-info-js_console-label { font-size:10px; font-weight:bold;

    52                                white-space:nowrap; }

    53   .org-info-js_search-highlight {background-color:#ffff00; color:#000000;

    54                                  font-weight:bold; }

    55   /*]]>*/-->

    56 </style>

    57 <link rel="stylesheet" type="text/css" href="/aurellem/css/aurellem.css" />

    58 <script type="text/javascript">

    59 <!--/*--><![CDATA[/*><!--*/

    60  function CodeHighlightOn(elem, id)

    61  {

    62    var target = document.getElementById(id);

    63    if(null != target) {

    64      elem.cacheClassElem = elem.className;

    65      elem.cacheClassTarget = target.className;

    66      target.className = "code-highlighted";

    67      elem.className   = "code-highlighted";

    68    }

    69  }

    70  function CodeHighlightOff(elem, id)

    71  {

    72    var target = document.getElementById(id);

    73    if(elem.cacheClassElem)

    74      elem.className = elem.cacheClassElem;

    75    if(elem.cacheClassTarget)

    76      target.className = elem.cacheClassTarget;

    77  }

    78 /*]]>*///-->

    79 </script>

    80 

    81 </head>

    82 <body>

    83 

    84 <div id="content">

    85 

    86 

    87 

    88 <div class="header">

    89   <div class="float-right">	

    90     <!-- 

    91     <form>

    92       <input type="text"/><input type="submit" value="search the blog &raquo;"/> 

    93     </form>

    94     -->

    95   </div>

    96 

    97   <h1>aurellem <em>&#x2609;</em></h1>

    98   <ul class="nav">

    99     <li><a href="/">read the blog &raquo;</a></li>

   100     <!-- li><a href="#">learn about us &raquo;</a></li-->

   101   </ul>

   102 </div>

   103 

   104 <h1 class="title">send.c</h1>

   105 <div class="author">Written by <author>Robert McIntyre</author></div>

   106 

   107 

   108 

   109 

   110 

   111 

   112 

   113 <pre class="src src-C"><span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"config.h"</span>

   114 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">&lt;stdlib.h&gt;</span>

   115 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"alMain.h"</span>

   116 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"AL/al.h"</span>

   117 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"AL/alc.h"</span>

   118 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"alSource.h"</span>

   119 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">&lt;jni.h&gt;</span>

   120 

   121 <span style="color: #708070;">//////////////////// </span><span style="color: #7f9f7f;">Summary</span>

   122 

   123 <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">send_data</span>;

   124 <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">context_data</span>;

   125 

   126 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">addContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *);

   127 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncContexts</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">slave</span>);

   128 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncSources</span>(<span style="color: #dfdfbf; font-weight: bold;">ALsource</span> *<span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALsource</span> *<span style="color: #f0dfaf;">slave</span>, 

   129                         <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterCtx</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">slaveCtx</span>);

   130 

   131 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncSourcei</span>(<span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">slave</span>,

   132                         <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterCtx</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx2</span>, <span style="color: #dfdfbf; font-weight: bold;">ALenum</span> <span style="color: #f0dfaf;">param</span>);

   133 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncSourcef</span>(<span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">slave</span>,

   134                         <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterCtx</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx2</span>, <span style="color: #dfdfbf; font-weight: bold;">ALenum</span> <span style="color: #f0dfaf;">param</span>);

   135 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncSource3f</span>(<span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">slave</span>,

   136                         <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterCtx</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx2</span>, <span style="color: #dfdfbf; font-weight: bold;">ALenum</span> <span style="color: #f0dfaf;">param</span>);

   137 

   138 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">swapInContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *, <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *);

   139 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">saveContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *, <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *);

   140 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">limitContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *);

   141 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">unLimitContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *);

   142 

   143 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">init</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *);

   144 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">renderData</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *, <span style="color: #dfdfbf; font-weight: bold;">int</span> <span style="color: #f0dfaf;">samples</span>);

   145 

   146 <span style="color: #8cd0d3;">#define</span> <span style="color: #f0dfaf;">UNUSED</span>(<span style="color: #f0dfaf;">x</span>)  (<span style="color: #dfdfbf; font-weight: bold;">void</span>)(x)

   147 

   148 <span style="color: #708070;">////////////////////  </span><span style="color: #7f9f7f;">State</span>

   149 

   150 <span style="color: #f0dfaf; font-weight: bold;">typedef</span> <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">context_data</span> {

   151   <span style="color: #dfdfbf; font-weight: bold;">ALfloat</span> <span style="color: #f0dfaf;">ClickRemoval</span>[MAXCHANNELS];

   152   <span style="color: #dfdfbf; font-weight: bold;">ALfloat</span> <span style="color: #f0dfaf;">PendingClicks</span>[MAXCHANNELS];

   153   <span style="color: #dfdfbf; font-weight: bold;">ALvoid</span> *<span style="color: #f0dfaf;">renderBuffer</span>;

   154   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx</span>;

   155 } <span style="color: #f0dfaf;">context_data</span>;

   156 

   157 <span style="color: #f0dfaf; font-weight: bold;">typedef</span> <span style="color: #f0dfaf; font-weight: bold;">struct</span> <span style="color: #dfdfbf; font-weight: bold;">send_data</span> {

   158   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">size</span>;

   159   <span style="color: #dfdfbf; font-weight: bold;">context_data</span> **<span style="color: #f0dfaf;">contexts</span>;

   160   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">numContexts</span>;

   161   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">maxContexts</span>;

   162 } <span style="color: #f0dfaf;">send_data</span>;

   163 

   164 

   165 

   166 <span style="color: #708070;">////////////////////  </span><span style="color: #7f9f7f;">Context Creation / Synchronization</span>

   167 

   168 <span style="color: #8cd0d3;">#define</span> <span style="color: #f0dfaf;">_MAKE_SYNC</span>(<span style="color: #f0dfaf;">NAME</span>, <span style="color: #f0dfaf;">INIT_EXPR</span>, <span style="color: #f0dfaf;">GET_EXPR</span>, <span style="color: #f0dfaf;">SET_EXPR</span>) \

   169   <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">NAME</span> (<span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">sourceID1</span>, <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">sourceID2</span>,        \

   170              <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx1</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx2</span>,        \

   171              <span style="color: #dfdfbf; font-weight: bold;">ALenum</span> <span style="color: #f0dfaf;">param</span>){                             \

   172     INIT_EXPR;                                          \

   173     <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();       \

   174     alcMakeContextCurrent(ctx1);                        \

   175     GET_EXPR;                                           \

   176     alcMakeContextCurrent(ctx2);                        \

   177     SET_EXPR;                                           \

   178     alcMakeContextCurrent(current);                     \

   179   }

   180   

   181 <span style="color: #8cd0d3;">#define</span> <span style="color: #f0dfaf;">MAKE_SYNC</span>(<span style="color: #f0dfaf;">NAME</span>, <span style="color: #f0dfaf;">TYPE</span>, <span style="color: #f0dfaf;">GET</span>, <span style="color: #f0dfaf;">SET</span>)                 \

   182   _MAKE_SYNC(NAME,                                      \

   183              <span style="color: #dfdfbf; font-weight: bold;">TYPE</span> <span style="color: #f0dfaf;">value</span>,                                \

   184              GET(sourceID1, param, &amp;value),             \

   185              SET(sourceID2, param, value))

   186   

   187 <span style="color: #8cd0d3;">#define</span> <span style="color: #f0dfaf;">MAKE_SYNC3</span>(<span style="color: #f0dfaf;">NAME</span>, <span style="color: #f0dfaf;">TYPE</span>, <span style="color: #f0dfaf;">GET</span>, <span style="color: #f0dfaf;">SET</span>)                                \

   188   _MAKE_SYNC(NAME,                                                      \

   189              <span style="color: #dfdfbf; font-weight: bold;">TYPE</span> <span style="color: #f0dfaf;">value1</span>; <span style="color: #dfdfbf; font-weight: bold;">TYPE</span> <span style="color: #f0dfaf;">value2</span>; <span style="color: #dfdfbf; font-weight: bold;">TYPE</span> <span style="color: #f0dfaf;">value3</span>;,                    \

   190              GET(sourceID1, param, &amp;value1, &amp;value2, &amp;value3),          \

   191              SET(sourceID2, param,  value1,  value2,  value3))

   192 

   193 MAKE_SYNC( syncSourcei,  ALint,   alGetSourcei,  alSourcei);

   194 MAKE_SYNC( syncSourcef,  ALfloat, alGetSourcef,  alSourcef);

   195 MAKE_SYNC3(syncSource3i, ALint,   alGetSource3i, alSource3i);

   196 MAKE_SYNC3(syncSource3f, ALfloat, alGetSource3f, alSource3f);

   197   

   198 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncSources</span>(<span style="color: #dfdfbf; font-weight: bold;">ALsource</span> *<span style="color: #f0dfaf;">masterSource</span>, <span style="color: #dfdfbf; font-weight: bold;">ALsource</span> *<span style="color: #f0dfaf;">slaveSource</span>, 

   199                  <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterCtx</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">slaveCtx</span>){

   200   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">master</span> = masterSource-&gt;source;

   201   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">slave</span> = slaveSource-&gt;source;

   202   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();

   203 

   204   syncSourcef(master,slave,masterCtx,slaveCtx,AL_PITCH);

   205   syncSourcef(master,slave,masterCtx,slaveCtx,AL_GAIN);

   206   syncSourcef(master,slave,masterCtx,slaveCtx,AL_MAX_DISTANCE);

   207   syncSourcef(master,slave,masterCtx,slaveCtx,AL_ROLLOFF_FACTOR);

   208   syncSourcef(master,slave,masterCtx,slaveCtx,AL_REFERENCE_DISTANCE);

   209   syncSourcef(master,slave,masterCtx,slaveCtx,AL_MIN_GAIN);

   210   syncSourcef(master,slave,masterCtx,slaveCtx,AL_MAX_GAIN);

   211   syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_OUTER_GAIN);

   212   syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_INNER_ANGLE);

   213   syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_OUTER_ANGLE);

   214   syncSourcef(master,slave,masterCtx,slaveCtx,AL_SEC_OFFSET);

   215   syncSourcef(master,slave,masterCtx,slaveCtx,AL_SAMPLE_OFFSET);

   216   syncSourcef(master,slave,masterCtx,slaveCtx,AL_BYTE_OFFSET);

   217     

   218   syncSource3f(master,slave,masterCtx,slaveCtx,AL_POSITION);

   219   syncSource3f(master,slave,masterCtx,slaveCtx,AL_VELOCITY);

   220   syncSource3f(master,slave,masterCtx,slaveCtx,AL_DIRECTION);

   221   

   222   syncSourcei(master,slave,masterCtx,slaveCtx,AL_SOURCE_RELATIVE);

   223   syncSourcei(master,slave,masterCtx,slaveCtx,AL_LOOPING);

   224 

   225   alcMakeContextCurrent(masterCtx);

   226   <span style="color: #dfdfbf; font-weight: bold;">ALint</span> <span style="color: #f0dfaf;">source_type</span>;

   227   alGetSourcei(master, AL_SOURCE_TYPE, &amp;source_type);

   228 

   229   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">Only static sources are currently synchronized! </span>

   230   <span style="color: #f0dfaf; font-weight: bold;">if</span> (AL_STATIC == source_type){

   231     <span style="color: #dfdfbf; font-weight: bold;">ALint</span> <span style="color: #f0dfaf;">master_buffer</span>;

   232     <span style="color: #dfdfbf; font-weight: bold;">ALint</span> <span style="color: #f0dfaf;">slave_buffer</span>;

   233     alGetSourcei(master, AL_BUFFER, &amp;master_buffer);

   234     alcMakeContextCurrent(slaveCtx);

   235     alGetSourcei(slave, AL_BUFFER, &amp;slave_buffer);

   236     <span style="color: #f0dfaf; font-weight: bold;">if</span> (master_buffer != slave_buffer){

   237       alSourcei(slave, AL_BUFFER, master_buffer);

   238     }

   239   }

   240   

   241   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">Synchronize the state of the two sources.</span>

   242   alcMakeContextCurrent(masterCtx);

   243   <span style="color: #dfdfbf; font-weight: bold;">ALint</span> <span style="color: #f0dfaf;">masterState</span>;

   244   <span style="color: #dfdfbf; font-weight: bold;">ALint</span> <span style="color: #f0dfaf;">slaveState</span>;

   245 

   246   alGetSourcei(master, AL_SOURCE_STATE, &amp;masterState);

   247   alcMakeContextCurrent(slaveCtx);

   248   alGetSourcei(slave, AL_SOURCE_STATE, &amp;slaveState);

   249 

   250   <span style="color: #f0dfaf; font-weight: bold;">if</span> (masterState != slaveState){

   251     <span style="color: #f0dfaf; font-weight: bold;">switch</span> (masterState){

   252     <span style="color: #f0dfaf; font-weight: bold;">case</span> AL_INITIAL : alSourceRewind(slave); <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   253     <span style="color: #f0dfaf; font-weight: bold;">case</span> AL_PLAYING : alSourcePlay(slave);   <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   254     <span style="color: #f0dfaf; font-weight: bold;">case</span> AL_PAUSED  : alSourcePause(slave);  <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   255     <span style="color: #f0dfaf; font-weight: bold;">case</span> AL_STOPPED : alSourceStop(slave);   <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   256     }

   257   }

   258   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">Restore whatever context was previously active.</span>

   259   alcMakeContextCurrent(current);

   260 }

   261 

   262 

   263 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">syncContexts</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">master</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">slave</span>){

   264   <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">If there aren't sufficient sources in slave to mirror </span>

   265 <span style="color: #7f9f7f;">     the sources in master, create them. </span><span style="color: #708070;">*/</span>

   266   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();

   267 

   268   <span style="color: #dfdfbf; font-weight: bold;">UIntMap</span> *<span style="color: #f0dfaf;">masterSourceMap</span> = &amp;(master-&gt;SourceMap);

   269   <span style="color: #dfdfbf; font-weight: bold;">UIntMap</span> *<span style="color: #f0dfaf;">slaveSourceMap</span> = &amp;(slave-&gt;SourceMap);

   270   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">numMasterSources</span> = masterSourceMap-&gt;size;

   271   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">numSlaveSources</span> = slaveSourceMap-&gt;size;

   272 

   273   alcMakeContextCurrent(slave);

   274   <span style="color: #f0dfaf; font-weight: bold;">if</span> (numSlaveSources &lt; numMasterSources){

   275     <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">numMissingSources</span> = numMasterSources - numSlaveSources;

   276     <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">newSources</span>[numMissingSources];

   277     alGenSources(numMissingSources, newSources);

   278   }

   279 

   280   <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">Now, slave is gauranteed to have at least as many sources</span>

   281 <span style="color: #7f9f7f;">     as master.  Sync each source from master to the corresponding</span>

   282 <span style="color: #7f9f7f;">     source in slave. </span><span style="color: #708070;">*/</span>

   283   <span style="color: #dfdfbf; font-weight: bold;">int</span> <span style="color: #f0dfaf;">i</span>;

   284   <span style="color: #f0dfaf; font-weight: bold;">for</span>(i = 0; i &lt; masterSourceMap-&gt;size; i++){

   285     syncSources((<span style="color: #dfdfbf; font-weight: bold;">ALsource</span>*)masterSourceMap-&gt;array[i].value,

   286                 (<span style="color: #dfdfbf; font-weight: bold;">ALsource</span>*)slaveSourceMap-&gt;array[i].value,

   287                 master, slave);

   288   }

   289   alcMakeContextCurrent(current);

   290 }

   291 

   292 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">addContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">context</span>){

   293   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)Device-&gt;ExtraData;

   294   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">expand array if necessary</span>

   295   <span style="color: #f0dfaf; font-weight: bold;">if</span> (data-&gt;numContexts &gt;= data-&gt;maxContexts){

   296     <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">newMaxContexts</span> = data-&gt;maxContexts*2 + 1;

   297     data-&gt;contexts = realloc(data-&gt;contexts, newMaxContexts*<span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(context_data));

   298     data-&gt;maxContexts = newMaxContexts;

   299   }

   300   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">create context_data and add it to the main array</span>

   301   <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *<span style="color: #f0dfaf;">ctxData</span>;

   302   ctxData = (<span style="color: #dfdfbf; font-weight: bold;">context_data</span>*)calloc(1, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(*ctxData));

   303   ctxData-&gt;renderBuffer = malloc(data-&gt;size);

   304   ctxData-&gt;ctx = context;

   305 

   306   data-&gt;contexts[data-&gt;numContexts] = ctxData;

   307   data-&gt;numContexts++;

   308 }

   309 

   310 

   311 <span style="color: #708070;">////////////////////  </span><span style="color: #7f9f7f;">Context Switching </span>

   312 

   313 <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">A device brings along with it two pieces of state</span>

   314 <span style="color: #7f9f7f;"> * which have to be swapped in and out with each context.</span>

   315 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   316 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">swapInContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>, <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *<span style="color: #f0dfaf;">ctxData</span>){

   317   memcpy(Device-&gt;ClickRemoval, ctxData-&gt;ClickRemoval, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(ALfloat)*MAXCHANNELS);

   318   memcpy(Device-&gt;PendingClicks, ctxData-&gt;PendingClicks, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(ALfloat)*MAXCHANNELS);

   319 }

   320 

   321 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">saveContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>, <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *<span style="color: #f0dfaf;">ctxData</span>){

   322   memcpy(ctxData-&gt;ClickRemoval, Device-&gt;ClickRemoval, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(ALfloat)*MAXCHANNELS);

   323   memcpy(ctxData-&gt;PendingClicks, Device-&gt;PendingClicks, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(ALfloat)*MAXCHANNELS);

   324 }  

   325 

   326 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> **<span style="color: #f0dfaf;">currentContext</span>;

   327 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">currentNumContext</span>;

   328 

   329 <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">By default, all contexts are rendered at once for each call to aluMixData.</span>

   330 <span style="color: #7f9f7f;"> * This function uses the internals of the ALCdecice struct to temporarly </span>

   331 <span style="color: #7f9f7f;"> * cause aluMixData to only render the chosen context.</span>

   332 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   333 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">limitContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>, <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx</span>){

   334   currentContext  = Device-&gt;Contexts;

   335   currentNumContext  = Device-&gt;NumContexts;

   336   Device-&gt;Contexts = &amp;ctx;

   337   Device-&gt;NumContexts = 1;

   338 }

   339 

   340 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">unLimitContext</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>){

   341   Device-&gt;Contexts = currentContext;

   342   Device-&gt;NumContexts = currentNumContext;

   343 }

   344 

   345 

   346 <span style="color: #708070;">////////////////////   </span><span style="color: #7f9f7f;">Main Device Loop</span>

   347 

   348 <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">Establish the LWJGL context as the main context, which will</span>

   349 <span style="color: #7f9f7f;"> * be synchronized to all the slave contexts</span>

   350 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   351 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">init</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>){

   352   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">masterContext</span> = alcGetCurrentContext();

   353   addContext(Device, masterContext);

   354 }

   355 

   356 

   357 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">renderData</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>, <span style="color: #dfdfbf; font-weight: bold;">int</span> <span style="color: #f0dfaf;">samples</span>){

   358   <span style="color: #f0dfaf; font-weight: bold;">if</span>(<span style="color: #f0dfaf; font-weight: bold;">!</span>Device-&gt;Connected){<span style="color: #f0dfaf; font-weight: bold;">return</span>;}

   359   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)Device-&gt;ExtraData;

   360   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();

   361 

   362   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">i</span>;

   363   <span style="color: #f0dfaf; font-weight: bold;">for</span> (i = 1; i &lt; data-&gt;numContexts; i++){

   364     syncContexts(data-&gt;contexts[0]-&gt;ctx , data-&gt;contexts[i]-&gt;ctx);

   365   }

   366   

   367   <span style="color: #f0dfaf; font-weight: bold;">if</span> ((<span style="color: #dfdfbf; font-weight: bold;">uint</span>) samples &gt; Device-&gt;UpdateSize){

   368     printf(<span style="color: #cc9393;">"exceeding internal buffer size; dropping samples\n"</span>);

   369     printf(<span style="color: #cc9393;">"requested %d; available %d\n"</span>, samples, Device-&gt;UpdateSize);

   370     samples = (<span style="color: #dfdfbf; font-weight: bold;">int</span>) Device-&gt;UpdateSize;

   371   }

   372 

   373   <span style="color: #f0dfaf; font-weight: bold;">for</span> (i = 0; i &lt; data-&gt;numContexts; i++){

   374     <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *<span style="color: #f0dfaf;">ctxData</span> = data-&gt;contexts[i];

   375     <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">ctx</span> = ctxData-&gt;ctx;

   376     alcMakeContextCurrent(ctx);

   377     limitContext(Device, ctx);

   378     swapInContext(Device, ctxData);

   379     aluMixData(Device, ctxData-&gt;renderBuffer, samples);

   380     saveContext(Device, ctxData);

   381     unLimitContext(Device);

   382   }

   383   alcMakeContextCurrent(current);

   384 }

   385 

   386 

   387 <span style="color: #708070;">////////////////////   </span><span style="color: #7f9f7f;">JNI Methods</span>

   388 

   389 <span style="color: #8cd0d3;">#include</span> <span style="color: #cc9393;">"com_jme3_capture_AudioSend.h"</span>

   390 

   391 <span style="color: #708070;">/*</span>

   392 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   393 <span style="color: #7f9f7f;"> * Method:    nstep</span>

   394 <span style="color: #7f9f7f;"> * Signature: (JI)V</span>

   395 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   396 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_nstep

   397 (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">samples</span>){

   398   UNUSED(env);UNUSED(clazz);UNUSED(device);

   399   renderData((<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*)((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device), samples);

   400 }

   401 

   402 <span style="color: #708070;">/*</span>

   403 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   404 <span style="color: #7f9f7f;"> * Method:    ngetSamples</span>

   405 <span style="color: #7f9f7f;"> * Signature: (JLjava/nio/ByteBuffer;III)V</span>

   406 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   407 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_ngetSamples

   408 (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>, <span style="color: #dfdfbf; font-weight: bold;">jobject</span> <span style="color: #f0dfaf;">buffer</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">position</span>, 

   409  <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">samples</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">n</span>){

   410   UNUSED(clazz);  

   411 

   412   <span style="color: #dfdfbf; font-weight: bold;">ALvoid</span> *<span style="color: #f0dfaf;">buffer_address</span> = 

   413     ((<span style="color: #dfdfbf; font-weight: bold;">ALbyte</span> *)(((<span style="color: #dfdfbf; font-weight: bold;">char</span>*)(*env)-&gt;GetDirectBufferAddress(env, buffer)) + position));

   414   <span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">recorder</span> = (<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*) ((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device);

   415   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)recorder-&gt;ExtraData;

   416   <span style="color: #f0dfaf; font-weight: bold;">if</span> ((<span style="color: #dfdfbf; font-weight: bold;">ALuint</span>)n &gt; data-&gt;numContexts){<span style="color: #f0dfaf; font-weight: bold;">return</span>;}

   417   <span style="color: #f0dfaf; font-weight: bold;">if</span> ((<span style="color: #dfdfbf; font-weight: bold;">uint</span>) samples &gt; data-&gt;size){

   418     samples = (<span style="color: #dfdfbf; font-weight: bold;">int</span>) data-&gt;size;

   419   }

   420   memcpy(buffer_address, data-&gt;contexts[n]-&gt;renderBuffer, samples*<span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(ALfloat));

   421 }

   422 

   423 <span style="color: #708070;">/*</span>

   424 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   425 <span style="color: #7f9f7f;"> * Method:    naddListener</span>

   426 <span style="color: #7f9f7f;"> * Signature: (J)V</span>

   427 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   428 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_naddListener

   429 (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>){

   430   UNUSED(env); UNUSED(clazz);

   431   printf(<span style="color: #cc9393;">"creating new context via naddListener\n"</span>);

   432   <span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span> = (<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*) ((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device);

   433   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">new</span> = alcCreateContext(Device, <span style="color: #dca3a3; font-weight: bold;">NULL</span>);

   434   addContext(Device, new);

   435 }

   436 

   437 <span style="color: #708070;">/*</span>

   438 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   439 <span style="color: #7f9f7f;"> * Method:    nsetNthListener3f</span>

   440 <span style="color: #7f9f7f;"> * Signature: (IFFFJI)V</span>

   441 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   442 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_nsetNthListener3f

   443   (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">param</span>, 

   444    <span style="color: #dfdfbf; font-weight: bold;">jfloat</span> <span style="color: #f0dfaf;">v1</span>, <span style="color: #dfdfbf; font-weight: bold;">jfloat</span> <span style="color: #f0dfaf;">v2</span>, <span style="color: #dfdfbf; font-weight: bold;">jfloat</span> <span style="color: #f0dfaf;">v3</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">contextNum</span>){

   445   UNUSED(env);UNUSED(clazz);

   446 

   447   <span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span> = (<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*) ((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device);

   448   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)Device-&gt;ExtraData;

   449   

   450   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();

   451   <span style="color: #f0dfaf; font-weight: bold;">if</span> ((<span style="color: #dfdfbf; font-weight: bold;">ALuint</span>)contextNum &gt; data-&gt;numContexts){<span style="color: #f0dfaf; font-weight: bold;">return</span>;}

   452   alcMakeContextCurrent(data-&gt;contexts[contextNum]-&gt;ctx);

   453   alListener3f(param, v1, v2, v3);

   454   alcMakeContextCurrent(current);

   455 }

   456 

   457 <span style="color: #708070;">/*</span>

   458 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   459 <span style="color: #7f9f7f;"> * Method:    nsetNthListenerf</span>

   460 <span style="color: #7f9f7f;"> * Signature: (IFJI)V</span>

   461 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>

   462 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_nsetNthListenerf

   463 (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">param</span>, <span style="color: #dfdfbf; font-weight: bold;">jfloat</span> <span style="color: #f0dfaf;">v1</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>, 

   464  <span style="color: #dfdfbf; font-weight: bold;">jint</span> <span style="color: #f0dfaf;">contextNum</span>){

   465 

   466   UNUSED(env);UNUSED(clazz);

   467   

   468   <span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span> = (<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*) ((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device);

   469   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)Device-&gt;ExtraData;

   470   

   471   <span style="color: #dfdfbf; font-weight: bold;">ALCcontext</span> *<span style="color: #f0dfaf;">current</span> = alcGetCurrentContext();

   472   <span style="color: #f0dfaf; font-weight: bold;">if</span> ((<span style="color: #dfdfbf; font-weight: bold;">ALuint</span>)contextNum &gt; data-&gt;numContexts){<span style="color: #f0dfaf; font-weight: bold;">return</span>;}

   473   alcMakeContextCurrent(data-&gt;contexts[contextNum]-&gt;ctx);

   474   alListenerf(param, v1);

   475   alcMakeContextCurrent(current);

   476 }

   477 

   478 <span style="color: #708070;">/*</span>

   479 <span style="color: #7f9f7f;"> * Class:     com_jme3_capture_AudioSend</span>

   480 <span style="color: #7f9f7f;"> * Method:    ninitDevice</span>

   481 <span style="color: #7f9f7f;"> * Signature: (J)V</span>

   482 <span style="color: #7f9f7f;"> </span><span style="color: #708070;">*/</span>                     

   483 JNIEXPORT <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">JNICALL</span> Java_com_jme3_capture_AudioSend_ninitDevice

   484 (JNIEnv *env, <span style="color: #dfdfbf; font-weight: bold;">jclass</span> <span style="color: #f0dfaf;">clazz</span>, <span style="color: #dfdfbf; font-weight: bold;">jlong</span> <span style="color: #f0dfaf;">device</span>){

   485   UNUSED(env);UNUSED(clazz);

   486   

   487   <span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span> = (<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span>*) ((<span style="color: #dfdfbf; font-weight: bold;">intptr_t</span>)device);

   488   init(Device);

   489 

   490 }

   491 

   492 

   493 <span style="color: #708070;">////////////////////   </span><span style="color: #7f9f7f;">Device Initilization / Management</span>

   494 

   495 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #f0dfaf; font-weight: bold;">const</span> <span style="color: #dfdfbf; font-weight: bold;">ALCchar</span> <span style="color: #f0dfaf;">sendDevice</span>[] = <span style="color: #cc9393;">"Multiple Audio Send"</span>;

   496 

   497 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> <span style="color: #f0dfaf;">send_open_playback</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">device</span>, 

   498  <span style="color: #f0dfaf; font-weight: bold;">const</span> <span style="color: #dfdfbf; font-weight: bold;">ALCchar</span> *<span style="color: #f0dfaf;">deviceName</span>)

   499 {

   500   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span>;

   501   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">stop any buffering for stdout, so that I can </span>

   502   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">see the printf statements in my terminal immediatley</span>

   503   setbuf(stdout, <span style="color: #dca3a3; font-weight: bold;">NULL</span>);

   504 

   505   <span style="color: #f0dfaf; font-weight: bold;">if</span>(<span style="color: #f0dfaf; font-weight: bold;">!</span>deviceName)

   506     deviceName = sendDevice;

   507   <span style="color: #f0dfaf; font-weight: bold;">else</span> <span style="color: #f0dfaf; font-weight: bold;">if</span>(strcmp(deviceName, sendDevice) != 0)

   508     <span style="color: #f0dfaf; font-weight: bold;">return</span> ALC_FALSE;

   509   data = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)calloc(1, <span style="color: #f0dfaf; font-weight: bold;">sizeof</span>(*data));

   510   device-&gt;szDeviceName = strdup(deviceName);

   511   device-&gt;ExtraData = data;

   512   <span style="color: #f0dfaf; font-weight: bold;">return</span> ALC_TRUE;

   513 }

   514 

   515 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">send_close_playback</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">device</span>)

   516 {

   517   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)device-&gt;ExtraData;

   518   alcMakeContextCurrent(<span style="color: #dca3a3; font-weight: bold;">NULL</span>);

   519   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">i</span>;

   520   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">Destroy all slave contexts. LWJGL will take care of </span>

   521   <span style="color: #708070;">// </span><span style="color: #7f9f7f;">its own context.</span>

   522   <span style="color: #f0dfaf; font-weight: bold;">for</span> (i = 1; i &lt; data-&gt;numContexts; i++){

   523     <span style="color: #dfdfbf; font-weight: bold;">context_data</span> *<span style="color: #f0dfaf;">ctxData</span> = data-&gt;contexts[i];

   524     alcDestroyContext(ctxData-&gt;ctx);

   525     free(ctxData-&gt;renderBuffer);

   526     free(ctxData);

   527   }

   528   free(data);

   529   device-&gt;ExtraData = <span style="color: #dca3a3; font-weight: bold;">NULL</span>;

   530 }

   531 

   532 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> <span style="color: #f0dfaf;">send_reset_playback</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">device</span>)

   533 {

   534   <span style="color: #dfdfbf; font-weight: bold;">send_data</span> *<span style="color: #f0dfaf;">data</span> = (<span style="color: #dfdfbf; font-weight: bold;">send_data</span>*)device-&gt;ExtraData;

   535   <span style="color: #dfdfbf; font-weight: bold;">ALuint</span> <span style="color: #f0dfaf;">channels</span>=0, <span style="color: #f0dfaf;">bits</span>=0;

   536   device-&gt;FmtType = DevFmtShort;

   537   bits = BytesFromDevFmt(device-&gt;FmtType) * 8;

   538   channels = ChannelsFromDevFmt(device-&gt;FmtChans);

   539   data-&gt;size = device-&gt;UpdateSize * channels * bits / 8;

   540 

   541   <span style="color: #f0dfaf; font-weight: bold;">return</span> ALC_TRUE;

   542 }

   543 

   544 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">send_stop_playback</span>(<span style="color: #dfdfbf; font-weight: bold;">ALCdevice</span> *<span style="color: #f0dfaf;">Device</span>){

   545   UNUSED(Device);

   546 }

   547 

   548 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #f0dfaf; font-weight: bold;">const</span> <span style="color: #dfdfbf; font-weight: bold;">BackendFuncs</span> <span style="color: #f0dfaf;">send_funcs</span> = {

   549   send_open_playback,

   550   send_close_playback,

   551   send_reset_playback,

   552   send_stop_playback,

   553   <span style="color: #dca3a3; font-weight: bold;">NULL</span>,

   554   <span style="color: #dca3a3; font-weight: bold;">NULL</span>,  <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">These would be filled with functions to    </span><span style="color: #708070;">*/</span>

   555   <span style="color: #dca3a3; font-weight: bold;">NULL</span>,  <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">handle capturing audio if we we into that  </span><span style="color: #708070;">*/</span>

   556   <span style="color: #dca3a3; font-weight: bold;">NULL</span>,  <span style="color: #708070;">/* </span><span style="color: #7f9f7f;">sort of thing...                           </span><span style="color: #708070;">*/</span>

   557   <span style="color: #dca3a3; font-weight: bold;">NULL</span>,

   558   <span style="color: #dca3a3; font-weight: bold;">NULL</span>

   559 };

   560 

   561 <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> <span style="color: #f0dfaf;">alc_send_init</span>(<span style="color: #dfdfbf; font-weight: bold;">BackendFuncs</span> *<span style="color: #f0dfaf;">func_list</span>){

   562   *func_list = send_funcs;

   563   <span style="color: #f0dfaf; font-weight: bold;">return</span> ALC_TRUE;

   564 }

   565 

   566 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_send_deinit</span>(<span style="color: #dfdfbf; font-weight: bold;">void</span>){}

   567 

   568 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_send_probe</span>(<span style="color: #f0dfaf; font-weight: bold;">enum</span> <span style="color: #dfdfbf; font-weight: bold;">DevProbe</span> <span style="color: #f0dfaf;">type</span>)

   569 {

   570   <span style="color: #f0dfaf; font-weight: bold;">switch</span>(type)

   571     {

   572     <span style="color: #f0dfaf; font-weight: bold;">case</span> DEVICE_PROBE:

   573       AppendDeviceList(sendDevice);

   574       <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   575     <span style="color: #f0dfaf; font-weight: bold;">case</span> ALL_DEVICE_PROBE:

   576       AppendAllDeviceList(sendDevice);

   577       <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   578     <span style="color: #f0dfaf; font-weight: bold;">case</span> CAPTURE_DEVICE_PROBE:

   579       <span style="color: #f0dfaf; font-weight: bold;">break</span>;

   580     }

   581 }

   582 

   583 

   584 

   585 </pre>

   586 

   587 

   588 

   589 

   590 

   591 <div id="postamble">

   592 <p class="date">Date: 2011-10-20 15:48:47 MST</p>

   593 <p class="author">Author: Robert McIntyre</p>

   594 <p class="creator">Org version 7.6 with Emacs version 23</p>

   595 <a href="http://validator.w3.org/check?uri=referer">Validate XHTML 1.0</a>

   596 </div>

   597 </div>

   598 </body>

   599 </html>
author	Robert McIntyre <rlm@mit.edu>
date	Fri, 18 Nov 2011 16:05:47 -0700
parents	f9476ff7637e
children