DISTRHO Plugin Framework
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  89. <div class="title">Plugin Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span><div class="ingroups"><a class="el" href="group__MainClasses.html">Main Classes</a></div></div> </div>
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  92. <p><code>#include &lt;<a class="el" href="DistrhoPlugin_8hpp_source.html">DistrhoPlugin.hpp</a>&gt;</code></p>
  93. <table class="memberdecls">
  94. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
  95. Public Member Functions</h2></td></tr>
  96. <tr class="memitem:a3096e491376cb9378be55915d748de57"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a3096e491376cb9378be55915d748de57">Plugin</a> (const uint32_t parameterCount, const uint32_t programCount, const uint32_t stateCount)</td></tr>
  97. <tr class="separator:a3096e491376cb9378be55915d748de57"><td class="memSeparator" colspan="2">&#160;</td></tr>
  98. <tr class="memitem:a89814b8f0b1c91e49140d42eb8331383"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a89814b8f0b1c91e49140d42eb8331383">~Plugin</a> ()</td></tr>
  99. <tr class="separator:a89814b8f0b1c91e49140d42eb8331383"><td class="memSeparator" colspan="2">&#160;</td></tr>
  100. <tr class="memitem:a2643e638f62cfd4990247ec66bed60d2"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a2643e638f62cfd4990247ec66bed60d2">getBufferSize</a> () const noexcept</td></tr>
  101. <tr class="separator:a2643e638f62cfd4990247ec66bed60d2"><td class="memSeparator" colspan="2">&#160;</td></tr>
  102. <tr class="memitem:a3e162cfe8f1c52bf09805fd327bcc3c4"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a3e162cfe8f1c52bf09805fd327bcc3c4">getSampleRate</a> () const noexcept</td></tr>
  103. <tr class="separator:a3e162cfe8f1c52bf09805fd327bcc3c4"><td class="memSeparator" colspan="2">&#160;</td></tr>
  104. <tr class="memitem:ae85d602c430b1a4361a88d714d3a42c1"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structTimePosition.html">TimePosition</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#ae85d602c430b1a4361a88d714d3a42c1">getTimePosition</a> () const noexcept</td></tr>
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  106. <tr class="memitem:a2a70c4ec55d74d9bc26862975d8df8a7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a2a70c4ec55d74d9bc26862975d8df8a7">setLatency</a> (uint32_t frames) noexcept</td></tr>
  107. <tr class="separator:a2a70c4ec55d74d9bc26862975d8df8a7"><td class="memSeparator" colspan="2">&#160;</td></tr>
  108. <tr class="memitem:a0467eef817ac130cbbe1c0fbe09660c6"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a0467eef817ac130cbbe1c0fbe09660c6">writeMidiEvent</a> (const <a class="el" href="structMidiEvent.html">MidiEvent</a> &amp;midiEvent) noexcept</td></tr>
  109. <tr class="separator:a0467eef817ac130cbbe1c0fbe09660c6"><td class="memSeparator" colspan="2">&#160;</td></tr>
  110. </table><table class="memberdecls">
  111. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
  112. Protected Member Functions</h2></td></tr>
  113. <tr class="memitem:a181bc1b9e4094921da788640955a3018"><td class="memItemLeft" align="right" valign="top">virtual const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a181bc1b9e4094921da788640955a3018">getName</a> () const </td></tr>
  114. <tr class="separator:a181bc1b9e4094921da788640955a3018"><td class="memSeparator" colspan="2">&#160;</td></tr>
  115. <tr class="memitem:a00f7945c16149db6845fbcc2af729f4f"><td class="memItemLeft" align="right" valign="top">virtual const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a00f7945c16149db6845fbcc2af729f4f">getLabel</a> () const =0</td></tr>
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  117. <tr class="memitem:a955832840de786a7a22798f0ef451c5d"><td class="memItemLeft" align="right" valign="top">virtual const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a955832840de786a7a22798f0ef451c5d">getMaker</a> () const =0</td></tr>
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  119. <tr class="memitem:a686a3c92a376a185d6fd97efd59125d1"><td class="memItemLeft" align="right" valign="top">virtual const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a686a3c92a376a185d6fd97efd59125d1">getLicense</a> () const =0</td></tr>
  120. <tr class="separator:a686a3c92a376a185d6fd97efd59125d1"><td class="memSeparator" colspan="2">&#160;</td></tr>
  121. <tr class="memitem:abae540dd93caf4834270358a8aad334a"><td class="memItemLeft" align="right" valign="top">virtual uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#abae540dd93caf4834270358a8aad334a">getVersion</a> () const =0</td></tr>
  122. <tr class="separator:abae540dd93caf4834270358a8aad334a"><td class="memSeparator" colspan="2">&#160;</td></tr>
  123. <tr class="memitem:ad6ff8c80227d5ceebd40b96f3be29a66"><td class="memItemLeft" align="right" valign="top">virtual int64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#ad6ff8c80227d5ceebd40b96f3be29a66">getUniqueId</a> () const =0</td></tr>
  124. <tr class="separator:ad6ff8c80227d5ceebd40b96f3be29a66"><td class="memSeparator" colspan="2">&#160;</td></tr>
  125. <tr class="memitem:a75f30935198a0acba25f4ea92af72dc4"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a75f30935198a0acba25f4ea92af72dc4">initAudioPort</a> (bool input, uint32_t index, <a class="el" href="structAudioPort.html">AudioPort</a> &amp;port)</td></tr>
  126. <tr class="separator:a75f30935198a0acba25f4ea92af72dc4"><td class="memSeparator" colspan="2">&#160;</td></tr>
  127. <tr class="memitem:a5b0ec59527a1c2f4b01f17fc8c18ea8b"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a5b0ec59527a1c2f4b01f17fc8c18ea8b">initParameter</a> (uint32_t index, <a class="el" href="structParameter.html">Parameter</a> &amp;parameter)=0</td></tr>
  128. <tr class="separator:a5b0ec59527a1c2f4b01f17fc8c18ea8b"><td class="memSeparator" colspan="2">&#160;</td></tr>
  129. <tr class="memitem:a54d66af3111541b7c118f9749ef0231b"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a54d66af3111541b7c118f9749ef0231b">initProgramName</a> (uint32_t index, String &amp;programName)=0</td></tr>
  130. <tr class="separator:a54d66af3111541b7c118f9749ef0231b"><td class="memSeparator" colspan="2">&#160;</td></tr>
  131. <tr class="memitem:ae301a970a8b5cff3c7ecef927ea20080"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#ae301a970a8b5cff3c7ecef927ea20080">initState</a> (uint32_t index, String &amp;stateKey, String &amp;defaultStateValue)=0</td></tr>
  132. <tr class="separator:ae301a970a8b5cff3c7ecef927ea20080"><td class="memSeparator" colspan="2">&#160;</td></tr>
  133. <tr class="memitem:a2d1da98c90568bb4547662bc4f02c31f"><td class="memItemLeft" align="right" valign="top">virtual float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a2d1da98c90568bb4547662bc4f02c31f">getParameterValue</a> (uint32_t index) const =0</td></tr>
  134. <tr class="separator:a2d1da98c90568bb4547662bc4f02c31f"><td class="memSeparator" colspan="2">&#160;</td></tr>
  135. <tr class="memitem:a6911a881fabb9eca9daf0eadbaad8599"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a6911a881fabb9eca9daf0eadbaad8599">setParameterValue</a> (uint32_t index, float value)=0</td></tr>
  136. <tr class="separator:a6911a881fabb9eca9daf0eadbaad8599"><td class="memSeparator" colspan="2">&#160;</td></tr>
  137. <tr class="memitem:ab629f35c60406d6f2c0b9d530e67cf09"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#ab629f35c60406d6f2c0b9d530e67cf09">loadProgram</a> (uint32_t index)=0</td></tr>
  138. <tr class="separator:ab629f35c60406d6f2c0b9d530e67cf09"><td class="memSeparator" colspan="2">&#160;</td></tr>
  139. <tr class="memitem:a3c6aeb79775ecf24ffbfc7dafd3d449b"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a3c6aeb79775ecf24ffbfc7dafd3d449b">setState</a> (const String &amp;key, const String &amp;value)=0</td></tr>
  140. <tr class="separator:a3c6aeb79775ecf24ffbfc7dafd3d449b"><td class="memSeparator" colspan="2">&#160;</td></tr>
  141. <tr class="memitem:aa5c1262f5ca20536bb5850fdd6faa22c"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#aa5c1262f5ca20536bb5850fdd6faa22c">activate</a> ()</td></tr>
  142. <tr class="separator:aa5c1262f5ca20536bb5850fdd6faa22c"><td class="memSeparator" colspan="2">&#160;</td></tr>
  143. <tr class="memitem:aa089a56572bc8f1cb7e4b538c0d19c46"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#aa089a56572bc8f1cb7e4b538c0d19c46">deactivate</a> ()</td></tr>
  144. <tr class="separator:aa089a56572bc8f1cb7e4b538c0d19c46"><td class="memSeparator" colspan="2">&#160;</td></tr>
  145. <tr class="memitem:a0a969c78f8455ac6ba65fa42e8c498f6"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run</a> (const float **inputs, float **outputs, uint32_t frames, const <a class="el" href="structMidiEvent.html">MidiEvent</a> *midiEvents, uint32_t midiEventCount)=0</td></tr>
  146. <tr class="separator:a0a969c78f8455ac6ba65fa42e8c498f6"><td class="memSeparator" colspan="2">&#160;</td></tr>
  147. <tr class="memitem:a9f6c8ad6b054056649d0250e527e1297"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a9f6c8ad6b054056649d0250e527e1297">bufferSizeChanged</a> (uint32_t newBufferSize)</td></tr>
  148. <tr class="separator:a9f6c8ad6b054056649d0250e527e1297"><td class="memSeparator" colspan="2">&#160;</td></tr>
  149. <tr class="memitem:a2fcbfa1893f44e661d0d8cd53391dadc"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classPlugin.html#a2fcbfa1893f44e661d0d8cd53391dadc">sampleRateChanged</a> (double newSampleRate)</td></tr>
  150. <tr class="separator:a2fcbfa1893f44e661d0d8cd53391dadc"><td class="memSeparator" colspan="2">&#160;</td></tr>
  151. </table><table class="memberdecls">
  152. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
  153. Friends</h2></td></tr>
  154. <tr class="memitem:a37441261848b635971dab1ee767285dd"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a37441261848b635971dab1ee767285dd"></a>
  155. class&#160;</td><td class="memItemRight" valign="bottom"><b>PluginExporter</b></td></tr>
  156. <tr class="separator:a37441261848b635971dab1ee767285dd"><td class="memSeparator" colspan="2">&#160;</td></tr>
  157. </table>
  158. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
  159. <div class="textblock"><p>DPF <a class="el" href="classPlugin.html">Plugin</a> class from where plugin instances are created.</p>
  160. <p>The public methods (Host state) are called from the plugin to get or set host information.<br />
  161. They can be called from a plugin instance at anytime unless stated otherwise.<br />
  162. All other methods are to be implemented by the plugin and will be called by the host.</p>
  163. <p>Shortly after a plugin instance is created, the various init* functions will be called by the host.<br />
  164. Host will call <a class="el" href="classPlugin.html#aa5c1262f5ca20536bb5850fdd6faa22c">activate()</a> before <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a>, and <a class="el" href="classPlugin.html#aa089a56572bc8f1cb7e4b538c0d19c46">deactivate()</a> before the plugin instance is destroyed.<br />
  165. The host may call deactivate right after activate and vice-versa, but never activate/deactivate consecutively.<br />
  166. There is no limit on how many times <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a> is called, only that activate/deactivate will be called in between.</p>
  167. <p>The buffer size and sample rate values will remain constant between activate and deactivate.<br />
  168. Buffer size is only a hint though, the host might call <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a> with a higher or lower number of frames.</p>
  169. <p>Some of this class functions are only available according to some macros.</p>
  170. <p>DISTRHO_PLUGIN_WANT_PROGRAMS activates program related features.<br />
  171. When enabled you need to implement <a class="el" href="classPlugin.html#a54d66af3111541b7c118f9749ef0231b">initProgramName()</a> and setProgram().</p>
  172. <p>DISTRHO_PLUGIN_WANT_STATE activates internal state features.<br />
  173. When enabled you need to implement initStateKey() and <a class="el" href="classPlugin.html#a3c6aeb79775ecf24ffbfc7dafd3d449b">setState()</a>.</p>
  174. <p>The process function <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a> changes wherever DISTRHO_PLUGIN_WANT_MIDI_INPUT is enabled or not.<br />
  175. When enabled it provides midi input events. </p>
  176. </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
  177. <a class="anchor" id="a3096e491376cb9378be55915d748de57"></a>
  178. <div class="memitem">
  179. <div class="memproto">
  180. <table class="memname">
  181. <tr>
  182. <td class="memname">Plugin::Plugin </td>
  183. <td>(</td>
  184. <td class="paramtype">const uint32_t&#160;</td>
  185. <td class="paramname"><em>parameterCount</em>, </td>
  186. </tr>
  187. <tr>
  188. <td class="paramkey"></td>
  189. <td></td>
  190. <td class="paramtype">const uint32_t&#160;</td>
  191. <td class="paramname"><em>programCount</em>, </td>
  192. </tr>
  193. <tr>
  194. <td class="paramkey"></td>
  195. <td></td>
  196. <td class="paramtype">const uint32_t&#160;</td>
  197. <td class="paramname"><em>stateCount</em>&#160;</td>
  198. </tr>
  199. <tr>
  200. <td></td>
  201. <td>)</td>
  202. <td></td><td></td>
  203. </tr>
  204. </table>
  205. </div><div class="memdoc">
  206. <p><a class="el" href="classPlugin.html">Plugin</a> class constructor.<br />
  207. You must set all parameter values to their defaults, matching <a class="el" href="structParameterRanges.html#aa0aba68115bcfff25c35b2da2f7aed4c">ParameterRanges::def</a>. </p>
  208. </div>
  209. </div>
  210. <a class="anchor" id="a89814b8f0b1c91e49140d42eb8331383"></a>
  211. <div class="memitem">
  212. <div class="memproto">
  213. <table class="mlabels">
  214. <tr>
  215. <td class="mlabels-left">
  216. <table class="memname">
  217. <tr>
  218. <td class="memname">virtual Plugin::~Plugin </td>
  219. <td>(</td>
  220. <td class="paramname"></td><td>)</td>
  221. <td></td>
  222. </tr>
  223. </table>
  224. </td>
  225. <td class="mlabels-right">
  226. <span class="mlabels"><span class="mlabel">virtual</span></span> </td>
  227. </tr>
  228. </table>
  229. </div><div class="memdoc">
  230. <p>Destructor. </p>
  231. </div>
  232. </div>
  233. <h2 class="groupheader">Member Function Documentation</h2>
  234. <a class="anchor" id="a2643e638f62cfd4990247ec66bed60d2"></a>
  235. <div class="memitem">
  236. <div class="memproto">
  237. <table class="mlabels">
  238. <tr>
  239. <td class="mlabels-left">
  240. <table class="memname">
  241. <tr>
  242. <td class="memname">uint32_t Plugin::getBufferSize </td>
  243. <td>(</td>
  244. <td class="paramname"></td><td>)</td>
  245. <td> const</td>
  246. </tr>
  247. </table>
  248. </td>
  249. <td class="mlabels-right">
  250. <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
  251. </tr>
  252. </table>
  253. </div><div class="memdoc">
  254. <p>Get the current buffer size that will probably be used during processing, in frames.<br />
  255. This value will remain constant between activate and deactivate. </p><dl class="section note"><dt>Note</dt><dd>This value is only a hint!<br />
  256. Hosts might call <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a> with a higher or lower number of frames. </dd></dl>
  257. <dl class="section see"><dt>See also</dt><dd><a class="el" href="classPlugin.html#a9f6c8ad6b054056649d0250e527e1297">bufferSizeChanged(uint32_t)</a> </dd></dl>
  258. </div>
  259. </div>
  260. <a class="anchor" id="a3e162cfe8f1c52bf09805fd327bcc3c4"></a>
  261. <div class="memitem">
  262. <div class="memproto">
  263. <table class="mlabels">
  264. <tr>
  265. <td class="mlabels-left">
  266. <table class="memname">
  267. <tr>
  268. <td class="memname">double Plugin::getSampleRate </td>
  269. <td>(</td>
  270. <td class="paramname"></td><td>)</td>
  271. <td> const</td>
  272. </tr>
  273. </table>
  274. </td>
  275. <td class="mlabels-right">
  276. <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
  277. </tr>
  278. </table>
  279. </div><div class="memdoc">
  280. <p>Get the current sample rate that will be used during processing.<br />
  281. This value will remain constant between activate and deactivate. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="classPlugin.html#a2fcbfa1893f44e661d0d8cd53391dadc">sampleRateChanged(double)</a> </dd></dl>
  282. </div>
  283. </div>
  284. <a class="anchor" id="ae85d602c430b1a4361a88d714d3a42c1"></a>
  285. <div class="memitem">
  286. <div class="memproto">
  287. <table class="mlabels">
  288. <tr>
  289. <td class="mlabels-left">
  290. <table class="memname">
  291. <tr>
  292. <td class="memname">const <a class="el" href="structTimePosition.html">TimePosition</a>&amp; Plugin::getTimePosition </td>
  293. <td>(</td>
  294. <td class="paramname"></td><td>)</td>
  295. <td> const</td>
  296. </tr>
  297. </table>
  298. </td>
  299. <td class="mlabels-right">
  300. <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
  301. </tr>
  302. </table>
  303. </div><div class="memdoc">
  304. <p>Get the current host transport time position.<br />
  305. This function should only be called during <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a>.<br />
  306. You can call this during other times, but the returned position is not guaranteed to be in sync. </p><dl class="section note"><dt>Note</dt><dd><a class="el" href="structTimePosition.html">TimePosition</a> is not supported in LADSPA and DSSI plugin formats. </dd></dl>
  307. </div>
  308. </div>
  309. <a class="anchor" id="a2a70c4ec55d74d9bc26862975d8df8a7"></a>
  310. <div class="memitem">
  311. <div class="memproto">
  312. <table class="mlabels">
  313. <tr>
  314. <td class="mlabels-left">
  315. <table class="memname">
  316. <tr>
  317. <td class="memname">void Plugin::setLatency </td>
  318. <td>(</td>
  319. <td class="paramtype">uint32_t&#160;</td>
  320. <td class="paramname"><em>frames</em></td><td>)</td>
  321. <td></td>
  322. </tr>
  323. </table>
  324. </td>
  325. <td class="mlabels-right">
  326. <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
  327. </tr>
  328. </table>
  329. </div><div class="memdoc">
  330. <p>Change the plugin audio output latency to <em>frames</em>.<br />
  331. This function should only be called in the constructor, <a class="el" href="classPlugin.html#aa5c1262f5ca20536bb5850fdd6faa22c">activate()</a> and <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a>. </p><dl class="section note"><dt>Note</dt><dd>This function is only available if DISTRHO_PLUGIN_WANT_LATENCY is enabled. </dd></dl>
  332. </div>
  333. </div>
  334. <a class="anchor" id="a0467eef817ac130cbbe1c0fbe09660c6"></a>
  335. <div class="memitem">
  336. <div class="memproto">
  337. <table class="mlabels">
  338. <tr>
  339. <td class="mlabels-left">
  340. <table class="memname">
  341. <tr>
  342. <td class="memname">bool Plugin::writeMidiEvent </td>
  343. <td>(</td>
  344. <td class="paramtype">const <a class="el" href="structMidiEvent.html">MidiEvent</a> &amp;&#160;</td>
  345. <td class="paramname"><em>midiEvent</em></td><td>)</td>
  346. <td></td>
  347. </tr>
  348. </table>
  349. </td>
  350. <td class="mlabels-right">
  351. <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
  352. </tr>
  353. </table>
  354. </div><div class="memdoc">
  355. <p>Write a MIDI output event.<br />
  356. This function must only be called during <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a>.<br />
  357. Returns false when the host buffer is full, in which case do not call this again until the next <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a>. </p>
  358. </div>
  359. </div>
  360. <a class="anchor" id="a181bc1b9e4094921da788640955a3018"></a>
  361. <div class="memitem">
  362. <div class="memproto">
  363. <table class="mlabels">
  364. <tr>
  365. <td class="mlabels-left">
  366. <table class="memname">
  367. <tr>
  368. <td class="memname">virtual const char* Plugin::getName </td>
  369. <td>(</td>
  370. <td class="paramname"></td><td>)</td>
  371. <td> const</td>
  372. </tr>
  373. </table>
  374. </td>
  375. <td class="mlabels-right">
  376. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  377. </tr>
  378. </table>
  379. </div><div class="memdoc">
  380. <p>Get the plugin name.<br />
  381. Returns DISTRHO_PLUGIN_NAME by default. </p>
  382. </div>
  383. </div>
  384. <a class="anchor" id="a00f7945c16149db6845fbcc2af729f4f"></a>
  385. <div class="memitem">
  386. <div class="memproto">
  387. <table class="mlabels">
  388. <tr>
  389. <td class="mlabels-left">
  390. <table class="memname">
  391. <tr>
  392. <td class="memname">virtual const char* Plugin::getLabel </td>
  393. <td>(</td>
  394. <td class="paramname"></td><td>)</td>
  395. <td> const</td>
  396. </tr>
  397. </table>
  398. </td>
  399. <td class="mlabels-right">
  400. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  401. </tr>
  402. </table>
  403. </div><div class="memdoc">
  404. <p>Get the plugin label.<br />
  405. This label is a short restricted name consisting of only _, a-z, A-Z and 0-9 characters. </p>
  406. </div>
  407. </div>
  408. <a class="anchor" id="a955832840de786a7a22798f0ef451c5d"></a>
  409. <div class="memitem">
  410. <div class="memproto">
  411. <table class="mlabels">
  412. <tr>
  413. <td class="mlabels-left">
  414. <table class="memname">
  415. <tr>
  416. <td class="memname">virtual const char* Plugin::getMaker </td>
  417. <td>(</td>
  418. <td class="paramname"></td><td>)</td>
  419. <td> const</td>
  420. </tr>
  421. </table>
  422. </td>
  423. <td class="mlabels-right">
  424. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  425. </tr>
  426. </table>
  427. </div><div class="memdoc">
  428. <p>Get the plugin author/maker. </p>
  429. </div>
  430. </div>
  431. <a class="anchor" id="a686a3c92a376a185d6fd97efd59125d1"></a>
  432. <div class="memitem">
  433. <div class="memproto">
  434. <table class="mlabels">
  435. <tr>
  436. <td class="mlabels-left">
  437. <table class="memname">
  438. <tr>
  439. <td class="memname">virtual const char* Plugin::getLicense </td>
  440. <td>(</td>
  441. <td class="paramname"></td><td>)</td>
  442. <td> const</td>
  443. </tr>
  444. </table>
  445. </td>
  446. <td class="mlabels-right">
  447. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  448. </tr>
  449. </table>
  450. </div><div class="memdoc">
  451. <p>Get the plugin license name (a single line of text).<br />
  452. For commercial plugins this should return some short copyright information. </p>
  453. </div>
  454. </div>
  455. <a class="anchor" id="abae540dd93caf4834270358a8aad334a"></a>
  456. <div class="memitem">
  457. <div class="memproto">
  458. <table class="mlabels">
  459. <tr>
  460. <td class="mlabels-left">
  461. <table class="memname">
  462. <tr>
  463. <td class="memname">virtual uint32_t Plugin::getVersion </td>
  464. <td>(</td>
  465. <td class="paramname"></td><td>)</td>
  466. <td> const</td>
  467. </tr>
  468. </table>
  469. </td>
  470. <td class="mlabels-right">
  471. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  472. </tr>
  473. </table>
  474. </div><div class="memdoc">
  475. <p>Get the plugin version, in hexadecimal.<br />
  476. TODO format to be defined </p>
  477. </div>
  478. </div>
  479. <a class="anchor" id="ad6ff8c80227d5ceebd40b96f3be29a66"></a>
  480. <div class="memitem">
  481. <div class="memproto">
  482. <table class="mlabels">
  483. <tr>
  484. <td class="mlabels-left">
  485. <table class="memname">
  486. <tr>
  487. <td class="memname">virtual int64_t Plugin::getUniqueId </td>
  488. <td>(</td>
  489. <td class="paramname"></td><td>)</td>
  490. <td> const</td>
  491. </tr>
  492. </table>
  493. </td>
  494. <td class="mlabels-right">
  495. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  496. </tr>
  497. </table>
  498. </div><div class="memdoc">
  499. <p>Get the plugin unique Id.<br />
  500. This value is used by LADSPA, DSSI and VST plugin formats. </p>
  501. </div>
  502. </div>
  503. <a class="anchor" id="a75f30935198a0acba25f4ea92af72dc4"></a>
  504. <div class="memitem">
  505. <div class="memproto">
  506. <table class="mlabels">
  507. <tr>
  508. <td class="mlabels-left">
  509. <table class="memname">
  510. <tr>
  511. <td class="memname">virtual void Plugin::initAudioPort </td>
  512. <td>(</td>
  513. <td class="paramtype">bool&#160;</td>
  514. <td class="paramname"><em>input</em>, </td>
  515. </tr>
  516. <tr>
  517. <td class="paramkey"></td>
  518. <td></td>
  519. <td class="paramtype">uint32_t&#160;</td>
  520. <td class="paramname"><em>index</em>, </td>
  521. </tr>
  522. <tr>
  523. <td class="paramkey"></td>
  524. <td></td>
  525. <td class="paramtype"><a class="el" href="structAudioPort.html">AudioPort</a> &amp;&#160;</td>
  526. <td class="paramname"><em>port</em>&#160;</td>
  527. </tr>
  528. <tr>
  529. <td></td>
  530. <td>)</td>
  531. <td></td><td></td>
  532. </tr>
  533. </table>
  534. </td>
  535. <td class="mlabels-right">
  536. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  537. </tr>
  538. </table>
  539. </div><div class="memdoc">
  540. <p>Initialize the audio port <em>index</em>.<br />
  541. This function will be called once, shortly after the plugin is created. </p>
  542. </div>
  543. </div>
  544. <a class="anchor" id="a5b0ec59527a1c2f4b01f17fc8c18ea8b"></a>
  545. <div class="memitem">
  546. <div class="memproto">
  547. <table class="mlabels">
  548. <tr>
  549. <td class="mlabels-left">
  550. <table class="memname">
  551. <tr>
  552. <td class="memname">virtual void Plugin::initParameter </td>
  553. <td>(</td>
  554. <td class="paramtype">uint32_t&#160;</td>
  555. <td class="paramname"><em>index</em>, </td>
  556. </tr>
  557. <tr>
  558. <td class="paramkey"></td>
  559. <td></td>
  560. <td class="paramtype"><a class="el" href="structParameter.html">Parameter</a> &amp;&#160;</td>
  561. <td class="paramname"><em>parameter</em>&#160;</td>
  562. </tr>
  563. <tr>
  564. <td></td>
  565. <td>)</td>
  566. <td></td><td></td>
  567. </tr>
  568. </table>
  569. </td>
  570. <td class="mlabels-right">
  571. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  572. </tr>
  573. </table>
  574. </div><div class="memdoc">
  575. <p>Initialize the parameter <em>index</em>.<br />
  576. This function will be called once, shortly after the plugin is created. </p>
  577. </div>
  578. </div>
  579. <a class="anchor" id="a54d66af3111541b7c118f9749ef0231b"></a>
  580. <div class="memitem">
  581. <div class="memproto">
  582. <table class="mlabels">
  583. <tr>
  584. <td class="mlabels-left">
  585. <table class="memname">
  586. <tr>
  587. <td class="memname">virtual void Plugin::initProgramName </td>
  588. <td>(</td>
  589. <td class="paramtype">uint32_t&#160;</td>
  590. <td class="paramname"><em>index</em>, </td>
  591. </tr>
  592. <tr>
  593. <td class="paramkey"></td>
  594. <td></td>
  595. <td class="paramtype">String &amp;&#160;</td>
  596. <td class="paramname"><em>programName</em>&#160;</td>
  597. </tr>
  598. <tr>
  599. <td></td>
  600. <td>)</td>
  601. <td></td><td></td>
  602. </tr>
  603. </table>
  604. </td>
  605. <td class="mlabels-right">
  606. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  607. </tr>
  608. </table>
  609. </div><div class="memdoc">
  610. <p>Set the name of the program <em>index</em>.<br />
  611. This function will be called once, shortly after the plugin is created.<br />
  612. Must be implemented by your plugin class only if DISTRHO_PLUGIN_WANT_PROGRAMS is enabled. </p>
  613. </div>
  614. </div>
  615. <a class="anchor" id="ae301a970a8b5cff3c7ecef927ea20080"></a>
  616. <div class="memitem">
  617. <div class="memproto">
  618. <table class="mlabels">
  619. <tr>
  620. <td class="mlabels-left">
  621. <table class="memname">
  622. <tr>
  623. <td class="memname">virtual void Plugin::initState </td>
  624. <td>(</td>
  625. <td class="paramtype">uint32_t&#160;</td>
  626. <td class="paramname"><em>index</em>, </td>
  627. </tr>
  628. <tr>
  629. <td class="paramkey"></td>
  630. <td></td>
  631. <td class="paramtype">String &amp;&#160;</td>
  632. <td class="paramname"><em>stateKey</em>, </td>
  633. </tr>
  634. <tr>
  635. <td class="paramkey"></td>
  636. <td></td>
  637. <td class="paramtype">String &amp;&#160;</td>
  638. <td class="paramname"><em>defaultStateValue</em>&#160;</td>
  639. </tr>
  640. <tr>
  641. <td></td>
  642. <td>)</td>
  643. <td></td><td></td>
  644. </tr>
  645. </table>
  646. </td>
  647. <td class="mlabels-right">
  648. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  649. </tr>
  650. </table>
  651. </div><div class="memdoc">
  652. <p>Set the state key and default value of <em>index</em>.<br />
  653. This function will be called once, shortly after the plugin is created.<br />
  654. Must be implemented by your plugin class only if DISTRHO_PLUGIN_WANT_STATE is enabled. </p>
  655. </div>
  656. </div>
  657. <a class="anchor" id="a2d1da98c90568bb4547662bc4f02c31f"></a>
  658. <div class="memitem">
  659. <div class="memproto">
  660. <table class="mlabels">
  661. <tr>
  662. <td class="mlabels-left">
  663. <table class="memname">
  664. <tr>
  665. <td class="memname">virtual float Plugin::getParameterValue </td>
  666. <td>(</td>
  667. <td class="paramtype">uint32_t&#160;</td>
  668. <td class="paramname"><em>index</em></td><td>)</td>
  669. <td> const</td>
  670. </tr>
  671. </table>
  672. </td>
  673. <td class="mlabels-right">
  674. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  675. </tr>
  676. </table>
  677. </div><div class="memdoc">
  678. <p>Get the current value of a parameter.<br />
  679. The host may call this function from any context, including realtime processing. </p>
  680. </div>
  681. </div>
  682. <a class="anchor" id="a6911a881fabb9eca9daf0eadbaad8599"></a>
  683. <div class="memitem">
  684. <div class="memproto">
  685. <table class="mlabels">
  686. <tr>
  687. <td class="mlabels-left">
  688. <table class="memname">
  689. <tr>
  690. <td class="memname">virtual void Plugin::setParameterValue </td>
  691. <td>(</td>
  692. <td class="paramtype">uint32_t&#160;</td>
  693. <td class="paramname"><em>index</em>, </td>
  694. </tr>
  695. <tr>
  696. <td class="paramkey"></td>
  697. <td></td>
  698. <td class="paramtype">float&#160;</td>
  699. <td class="paramname"><em>value</em>&#160;</td>
  700. </tr>
  701. <tr>
  702. <td></td>
  703. <td>)</td>
  704. <td></td><td></td>
  705. </tr>
  706. </table>
  707. </td>
  708. <td class="mlabels-right">
  709. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  710. </tr>
  711. </table>
  712. </div><div class="memdoc">
  713. <p>Change a parameter value.<br />
  714. The host may call this function from any context, including realtime processing.<br />
  715. When a parameter is marked as automable, you must ensure no non-realtime operations are performed. </p><dl class="section note"><dt>Note</dt><dd>This function will only be called for parameter inputs. </dd></dl>
  716. </div>
  717. </div>
  718. <a class="anchor" id="ab629f35c60406d6f2c0b9d530e67cf09"></a>
  719. <div class="memitem">
  720. <div class="memproto">
  721. <table class="mlabels">
  722. <tr>
  723. <td class="mlabels-left">
  724. <table class="memname">
  725. <tr>
  726. <td class="memname">virtual void Plugin::loadProgram </td>
  727. <td>(</td>
  728. <td class="paramtype">uint32_t&#160;</td>
  729. <td class="paramname"><em>index</em></td><td>)</td>
  730. <td></td>
  731. </tr>
  732. </table>
  733. </td>
  734. <td class="mlabels-right">
  735. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  736. </tr>
  737. </table>
  738. </div><div class="memdoc">
  739. <p>Load a program.<br />
  740. The host may call this function from any context, including realtime processing.<br />
  741. Must be implemented by your plugin class only if DISTRHO_PLUGIN_WANT_PROGRAMS is enabled. </p>
  742. </div>
  743. </div>
  744. <a class="anchor" id="a3c6aeb79775ecf24ffbfc7dafd3d449b"></a>
  745. <div class="memitem">
  746. <div class="memproto">
  747. <table class="mlabels">
  748. <tr>
  749. <td class="mlabels-left">
  750. <table class="memname">
  751. <tr>
  752. <td class="memname">virtual void Plugin::setState </td>
  753. <td>(</td>
  754. <td class="paramtype">const String &amp;&#160;</td>
  755. <td class="paramname"><em>key</em>, </td>
  756. </tr>
  757. <tr>
  758. <td class="paramkey"></td>
  759. <td></td>
  760. <td class="paramtype">const String &amp;&#160;</td>
  761. <td class="paramname"><em>value</em>&#160;</td>
  762. </tr>
  763. <tr>
  764. <td></td>
  765. <td>)</td>
  766. <td></td><td></td>
  767. </tr>
  768. </table>
  769. </td>
  770. <td class="mlabels-right">
  771. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  772. </tr>
  773. </table>
  774. </div><div class="memdoc">
  775. <p>Change an internal state <em>key</em> to <em>value</em>.<br />
  776. Must be implemented by your plugin class only if DISTRHO_PLUGIN_WANT_STATE is enabled. </p>
  777. </div>
  778. </div>
  779. <a class="anchor" id="aa5c1262f5ca20536bb5850fdd6faa22c"></a>
  780. <div class="memitem">
  781. <div class="memproto">
  782. <table class="mlabels">
  783. <tr>
  784. <td class="mlabels-left">
  785. <table class="memname">
  786. <tr>
  787. <td class="memname">virtual void Plugin::activate </td>
  788. <td>(</td>
  789. <td class="paramname"></td><td>)</td>
  790. <td></td>
  791. </tr>
  792. </table>
  793. </td>
  794. <td class="mlabels-right">
  795. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  796. </tr>
  797. </table>
  798. </div><div class="memdoc">
  799. <p>Activate this plugin. </p>
  800. </div>
  801. </div>
  802. <a class="anchor" id="aa089a56572bc8f1cb7e4b538c0d19c46"></a>
  803. <div class="memitem">
  804. <div class="memproto">
  805. <table class="mlabels">
  806. <tr>
  807. <td class="mlabels-left">
  808. <table class="memname">
  809. <tr>
  810. <td class="memname">virtual void Plugin::deactivate </td>
  811. <td>(</td>
  812. <td class="paramname"></td><td>)</td>
  813. <td></td>
  814. </tr>
  815. </table>
  816. </td>
  817. <td class="mlabels-right">
  818. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  819. </tr>
  820. </table>
  821. </div><div class="memdoc">
  822. <p>Deactivate this plugin. </p>
  823. </div>
  824. </div>
  825. <a class="anchor" id="a0a969c78f8455ac6ba65fa42e8c498f6"></a>
  826. <div class="memitem">
  827. <div class="memproto">
  828. <table class="mlabels">
  829. <tr>
  830. <td class="mlabels-left">
  831. <table class="memname">
  832. <tr>
  833. <td class="memname">virtual void Plugin::run </td>
  834. <td>(</td>
  835. <td class="paramtype">const float **&#160;</td>
  836. <td class="paramname"><em>inputs</em>, </td>
  837. </tr>
  838. <tr>
  839. <td class="paramkey"></td>
  840. <td></td>
  841. <td class="paramtype">float **&#160;</td>
  842. <td class="paramname"><em>outputs</em>, </td>
  843. </tr>
  844. <tr>
  845. <td class="paramkey"></td>
  846. <td></td>
  847. <td class="paramtype">uint32_t&#160;</td>
  848. <td class="paramname"><em>frames</em>, </td>
  849. </tr>
  850. <tr>
  851. <td class="paramkey"></td>
  852. <td></td>
  853. <td class="paramtype">const <a class="el" href="structMidiEvent.html">MidiEvent</a> *&#160;</td>
  854. <td class="paramname"><em>midiEvents</em>, </td>
  855. </tr>
  856. <tr>
  857. <td class="paramkey"></td>
  858. <td></td>
  859. <td class="paramtype">uint32_t&#160;</td>
  860. <td class="paramname"><em>midiEventCount</em>&#160;</td>
  861. </tr>
  862. <tr>
  863. <td></td>
  864. <td>)</td>
  865. <td></td><td></td>
  866. </tr>
  867. </table>
  868. </td>
  869. <td class="mlabels-right">
  870. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">pure virtual</span></span> </td>
  871. </tr>
  872. </table>
  873. </div><div class="memdoc">
  874. <p>Run/process function for plugins with MIDI input. </p><dl class="section note"><dt>Note</dt><dd>Some parameters might be null if there are no audio inputs/outputs or MIDI events. </dd></dl>
  875. </div>
  876. </div>
  877. <a class="anchor" id="a9f6c8ad6b054056649d0250e527e1297"></a>
  878. <div class="memitem">
  879. <div class="memproto">
  880. <table class="mlabels">
  881. <tr>
  882. <td class="mlabels-left">
  883. <table class="memname">
  884. <tr>
  885. <td class="memname">virtual void Plugin::bufferSizeChanged </td>
  886. <td>(</td>
  887. <td class="paramtype">uint32_t&#160;</td>
  888. <td class="paramname"><em>newBufferSize</em></td><td>)</td>
  889. <td></td>
  890. </tr>
  891. </table>
  892. </td>
  893. <td class="mlabels-right">
  894. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  895. </tr>
  896. </table>
  897. </div><div class="memdoc">
  898. <p>Optional callback to inform the plugin about a buffer size change.<br />
  899. This function will only be called when the plugin is deactivated. </p><dl class="section note"><dt>Note</dt><dd>This value is only a hint!<br />
  900. Hosts might call <a class="el" href="classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6">run()</a> with a higher or lower number of frames. </dd></dl>
  901. <dl class="section see"><dt>See also</dt><dd><a class="el" href="classPlugin.html#a2643e638f62cfd4990247ec66bed60d2">getBufferSize()</a> </dd></dl>
  902. </div>
  903. </div>
  904. <a class="anchor" id="a2fcbfa1893f44e661d0d8cd53391dadc"></a>
  905. <div class="memitem">
  906. <div class="memproto">
  907. <table class="mlabels">
  908. <tr>
  909. <td class="mlabels-left">
  910. <table class="memname">
  911. <tr>
  912. <td class="memname">virtual void Plugin::sampleRateChanged </td>
  913. <td>(</td>
  914. <td class="paramtype">double&#160;</td>
  915. <td class="paramname"><em>newSampleRate</em></td><td>)</td>
  916. <td></td>
  917. </tr>
  918. </table>
  919. </td>
  920. <td class="mlabels-right">
  921. <span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
  922. </tr>
  923. </table>
  924. </div><div class="memdoc">
  925. <p>Optional callback to inform the plugin about a sample rate change.<br />
  926. This function will only be called when the plugin is deactivated. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="classPlugin.html#a3e162cfe8f1c52bf09805fd327bcc3c4">getSampleRate()</a> </dd></dl>
  927. </div>
  928. </div>
  929. <hr/>The documentation for this class was generated from the following file:<ul>
  930. <li>distrho/<a class="el" href="DistrhoPlugin_8hpp_source.html">DistrhoPlugin.hpp</a></li>
  931. </ul>
  932. </div><!-- contents -->
  933. <!-- start footer part -->
  934. <hr class="footer"/><address class="footer"><small>
  935. Generated on Sun Apr 26 2015 16:30:13 for DISTRHO Plugin Framework by &#160;<a href="http://www.doxygen.org/index.html">
  936. <img class="footer" src="doxygen.png" alt="doxygen"/>
  937. </a> 1.8.8
  938. </small></address>
  939. </body>
  940. </html>