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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2007 Christian Schoenebeck * |
* Copyright (C) 2005 - 2008 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
110 |
return std::vector<int>(); |
return std::vector<int>(); |
111 |
} |
} |
112 |
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113 |
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int AudioOutputDevice::ParameterSampleRate::ValueAsInt() { |
114 |
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return (pDevice) ? (int) ((AudioOutputDevice*)pDevice)->SampleRate() |
115 |
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: DeviceCreationParameterInt::ValueAsInt(); |
116 |
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} |
117 |
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118 |
void AudioOutputDevice::ParameterSampleRate::OnSetValue(int i) throw (Exception) { |
void AudioOutputDevice::ParameterSampleRate::OnSetValue(int i) throw (Exception) { |
119 |
/* cannot happen, as parameter is fix */ |
/* cannot happen, as parameter is fix */ |
120 |
} |
} |
205 |
} |
} |
206 |
Parameters.clear(); |
Parameters.clear(); |
207 |
} |
} |
208 |
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|
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// delete all master effect chains |
210 |
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{ |
211 |
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std::vector<EffectChain*>::iterator iter = vEffectChains.begin(); |
212 |
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while (iter != vEffectChains.end()) { |
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delete *iter; |
214 |
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iter++; |
215 |
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} |
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vEffectChains.clear(); |
217 |
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} |
218 |
} |
} |
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void AudioOutputDevice::Connect(Engine* pEngine) { |
void AudioOutputDevice::Connect(Engine* pEngine) { |
257 |
return Parameters; |
return Parameters; |
258 |
} |
} |
259 |
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260 |
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EffectChain* AudioOutputDevice::AddMasterEffectChain() { |
261 |
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EffectChain* pChain = new EffectChain(this); |
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vEffectChains.push_back(pChain); |
263 |
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return pChain; |
264 |
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} |
265 |
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266 |
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void AudioOutputDevice::RemoveMasterEffectChain(uint iChain) throw (Exception) { |
267 |
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if (iChain >= vEffectChains.size()) |
268 |
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throw Exception( |
269 |
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"Could not remove master effect chain " + ToString(iChain) + |
270 |
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", index out of bounds" |
271 |
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); |
272 |
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std::vector<EffectChain*>::iterator iter = vEffectChains.begin(); |
273 |
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for (int i = 0; i < iChain; ++i) ++iter; |
274 |
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vEffectChains.erase(iter); |
275 |
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} |
276 |
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277 |
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EffectChain* AudioOutputDevice::MasterEffectChain(uint iChain) const { |
278 |
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if (iChain >= vEffectChains.size()) return NULL; |
279 |
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return vEffectChains[iChain]; |
280 |
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} |
281 |
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282 |
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uint AudioOutputDevice::MasterEffectChainCount() const { |
283 |
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return vEffectChains.size(); |
284 |
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} |
285 |
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286 |
int AudioOutputDevice::RenderAudio(uint Samples) { |
int AudioOutputDevice::RenderAudio(uint Samples) { |
287 |
if (Channels.empty()) return 0; |
if (Channels.empty()) return 0; |
288 |
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|
291 |
std::vector<AudioChannel*>::iterator iterChannels = Channels.begin(); |
std::vector<AudioChannel*>::iterator iterChannels = Channels.begin(); |
292 |
std::vector<AudioChannel*>::iterator end = Channels.end(); |
std::vector<AudioChannel*>::iterator end = Channels.end(); |
293 |
for (; iterChannels != end; iterChannels++) |
for (; iterChannels != end; iterChannels++) |
294 |
(*iterChannels)->Clear(); // zero out audio buffer |
(*iterChannels)->Clear(Samples); // zero out audio buffer |
295 |
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} |
296 |
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// do the same for master effects |
297 |
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{ |
298 |
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std::vector<EffectChain*>::iterator iterChains = vEffectChains.begin(); |
299 |
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std::vector<EffectChain*>::iterator end = vEffectChains.end(); |
300 |
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for (; iterChains != end; ++iterChains) |
301 |
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(*iterChains)->ClearAllChannels(); // zero out audio buffers |
302 |
} |
} |
303 |
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|
304 |
int result = 0; |
int result = 0; |
322 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
323 |
} |
} |
324 |
#endif // CONFIG_RT_EXCEPTIONS |
#endif // CONFIG_RT_EXCEPTIONS |
|
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|
325 |
EnginesReader.Unlock(); |
EnginesReader.Unlock(); |
326 |
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|
327 |
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// now that the engines (might) have left fx send signals for master |
328 |
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// effects, render all master effects |
329 |
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{ |
330 |
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std::vector<EffectChain*>::iterator iterChains = vEffectChains.begin(); |
331 |
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std::vector<EffectChain*>::iterator end = vEffectChains.end(); |
332 |
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for (; iterChains != end; ++iterChains) { |
333 |
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if (!(*iterChains)->EffectCount()) continue; |
334 |
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(*iterChains)->RenderAudio(Samples); |
335 |
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// mix the result of the last effect in the chain to the audio |
336 |
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// output device channel(s) |
337 |
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Effect* pLastEffect = |
338 |
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(*iterChains)->GetEffect((*iterChains)->EffectCount() - 1); |
339 |
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for (int iChan = 0; iChan < pLastEffect->OutputChannelCount() && iChan < ChannelCount(); ++iChan) |
340 |
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pLastEffect->OutputChannel(iChan)->MixTo(Channel(iChan), Samples); |
341 |
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} |
342 |
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} |
343 |
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|
344 |
return result; |
return result; |
345 |
} |
} |
346 |
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|
352 |
std::vector<AudioChannel*>::iterator iterChannels = Channels.begin(); |
std::vector<AudioChannel*>::iterator iterChannels = Channels.begin(); |
353 |
std::vector<AudioChannel*>::iterator end = Channels.end(); |
std::vector<AudioChannel*>::iterator end = Channels.end(); |
354 |
for (; iterChannels != end; iterChannels++) |
for (; iterChannels != end; iterChannels++) |
355 |
(*iterChannels)->Clear(); // zero out audio buffer |
(*iterChannels)->Clear(Samples); // zero out audio buffer |
356 |
} |
} |
357 |
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|
358 |
return 0; |
return 0; |