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initial forking of open-al to create multiple listeners
author Robert McIntyre <rlm@mit.edu>
date Tue, 25 Oct 2011 13:02:31 -0700
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children 3caceef436ea
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103
104 <h1 class="title">all the steps to add a device to open-al</h1>
105 <div class="author">Written by <author>Robert McIntyre</author></div>
106
107
108
109
110
111
112
113 <div id="table-of-contents">
114 <h2>Table of Contents</h2>
115 <div id="text-table-of-contents">
116 <ul>
117 <li><a href="#sec-1">1 How to add a new backend device </a></li>
118 <li><a href="#sec-2">2 In Alc/backends/&lt;your-device&gt;.c </a></li>
119 <li><a href="#sec-3">3 In OpenAL32/Include/alMain.h : </a></li>
120 <li><a href="#sec-4">4 In Alc/ALc.c : </a></li>
121 <li><a href="#sec-5">5 In CMakeLists.txt </a></li>
122 <li><a href="#sec-6">6 In ~/.alsoftrc </a></li>
123 </ul>
124 </div>
125 </div>
126
127 <div id="outline-container-1" class="outline-2">
128 <h2 id="sec-1"><span class="section-number-2">1</span> How to add a new backend device </h2>
129 <div class="outline-text-2" id="text-1">
130
131
132 </div>
133
134 </div>
135
136 <div id="outline-container-2" class="outline-2">
137 <h2 id="sec-2"><span class="section-number-2">2</span> In Alc/backends/&lt;your-device&gt;.c </h2>
138 <div class="outline-text-2" id="text-2">
139
140
141
142
143
144 <pre class="src src-C"><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> &lt;your-device&gt;_device[] = &lt;your-device-name&gt;;
145
146 <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_init(BackendFuncs *func_list)
147 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_deinit(<span style="color: #dfdfbf; font-weight: bold;">void</span>)
148
149 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> &lt;your-device&gt;_open_playback(ALCdevice *device, <span style="color: #f0dfaf; font-weight: bold;">const</span> <span style="color: #dfdfbf; font-weight: bold;">ALCchar</span> *<span style="color: #f0dfaf;">deviceName</span>)
150 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> &lt;your-device&gt;_close_playback(ALCdevice *device)
151 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> &lt;your-device&gt;_reset_playback(ALCdevice *device)
152 <span style="color: #f0dfaf; font-weight: bold;">static</span> <span style="color: #dfdfbf; font-weight: bold;">void</span> &lt;your-device&gt;_stop_playback(ALCdevice *device)
153 </pre>
154
155
156
157
158
159 <pre class="src src-C"><span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_probe(<span style="color: #f0dfaf; font-weight: bold;">enum</span> <span style="color: #dfdfbf; font-weight: bold;">DevProbe</span> <span style="color: #f0dfaf;">type</span>)
160 {
161 <span style="color: #f0dfaf; font-weight: bold;">switch</span>(type)
162 {
163 <span style="color: #f0dfaf; font-weight: bold;">case</span> DEVICE_PROBE:
164 AppendDeviceList(&lt;your-device&gt;Device);
165 <span style="color: #f0dfaf; font-weight: bold;">break</span>;
166 <span style="color: #f0dfaf; font-weight: bold;">case</span> ALL_DEVICE_PROBE:
167 AppendAllDeviceList(&lt;your-device&gt;Device);
168 <span style="color: #f0dfaf; font-weight: bold;">break</span>;
169 <span style="color: #f0dfaf; font-weight: bold;">case</span> CAPTURE_DEVICE_PROBE:
170 <span style="color: #f0dfaf; font-weight: bold;">break</span>;
171 }
172 }
173 </pre>
174
175
176
177
178
179 <pre class="src src-C"><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> &lt;your-device&gt;_funcs = {
180 &lt;your-device&gt;_open_playback,
181 &lt;your-device&gt;_close_playback,
182 &lt;your-device&gt;_reset_playback,
183 &lt;your-device&gt;_stop_playback,
184 <span style="color: #dca3a3; font-weight: bold;">NULL</span>,
185 <span style="color: #dca3a3; font-weight: bold;">NULL</span>,
186 <span style="color: #dca3a3; font-weight: bold;">NULL</span>,
187 <span style="color: #dca3a3; font-weight: bold;">NULL</span>,
188 <span style="color: #dca3a3; font-weight: bold;">NULL</span>,
189 <span style="color: #dca3a3; font-weight: bold;">NULL</span>
190 };
191 </pre>
192
193
194
195
196
197 </div>
198
199 </div>
200
201 <div id="outline-container-3" class="outline-2">
202 <h2 id="sec-3"><span class="section-number-2">3</span> In OpenAL32/Include/alMain.h : </h2>
203 <div class="outline-text-2" id="text-3">
204
205
206
207
208
209 <pre class="src src-C"><span style="color: #dfdfbf; font-weight: bold;">ALCboolean</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_init(BackendFuncs *func_list);
210 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_deinit(<span style="color: #dfdfbf; font-weight: bold;">void</span>);
211 <span style="color: #dfdfbf; font-weight: bold;">void</span> <span style="color: #f0dfaf;">alc_</span>&lt;your-device&gt;_probe(<span style="color: #f0dfaf; font-weight: bold;">enum</span> <span style="color: #dfdfbf; font-weight: bold;">DevProbe</span> <span style="color: #f0dfaf;">type</span>);
212
213 </pre>
214
215
216
217
218 </div>
219
220 </div>
221
222 <div id="outline-container-4" class="outline-2">
223 <h2 id="sec-4"><span class="section-number-2">4</span> In Alc/ALc.c : </h2>
224 <div class="outline-text-2" id="text-4">
225
226
227
228
229 <pre class="src src-C"> { <span style="color: #cc9393;">"&lt;your-device&gt;"</span>, alc_&lt;your-device&gt;_init,
230 alc_&lt;your-device&gt;_deinit, alc_&lt;your-device&gt;_probe, EmptyFuncs },
231
232 </pre>
233
234
235
236
237 </div>
238
239 </div>
240
241 <div id="outline-container-5" class="outline-2">
242 <h2 id="sec-5"><span class="section-number-2">5</span> In CMakeLists.txt </h2>
243 <div class="outline-text-2" id="text-5">
244
245
246
247
248 <pre class="src src-cmake">SET(ALC_OBJS Alc/ALc.c
249 Alc/ALu.c
250 Alc/alcConfig.c
251 Alc/alcDedicated.c
252 Alc/alcEcho.c
253 Alc/alcModulator.c
254 Alc/alcReverb.c
255 Alc/alcRing.c
256 Alc/alcThread.c
257 Alc/bs2b.c
258 Alc/helpers.c
259 Alc/hrtf.c
260 Alc/mixer.c
261 Alc/panning.c
262 # Default backends, always available
263 Alc/backends/loopback.c
264 Alc/backends/null.c
265 # : add &lt;your-device&gt; device
266 Alc/backends/&lt;your-device&gt;.c
267 )
268 </pre>
269
270
271
272
273
274 </div>
275
276 </div>
277
278 <div id="outline-container-6" class="outline-2">
279 <h2 id="sec-6"><span class="section-number-2">6</span> In ~/.alsoftrc </h2>
280 <div class="outline-text-2" id="text-6">
281
282
283
284
285
286 <pre class="src src-conf"><span style="color: #f0dfaf;">drivers</span> = &lt;your-device&gt;
287 </pre>
288
289
290
291 </div>
292 </div>
293 <div id="postamble">
294 <p class="date">Date: 2011-10-20 15:48:47 MST</p>
295 <p class="author">Author: Robert McIntyre</p>
296 <p class="creator">Org version 7.6 with Emacs version 23</p>
297 <a href="http://validator.w3.org/check?uri=referer">Validate XHTML 1.0</a>
298 </div>
299 </div>
300 </body>
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