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/*************************************************************************** |
/*************************************************************************** |
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* * |
* * |
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* Copyright (C) 2008 Andreas Persson * |
* Copyright (C) 2008 - 2009 Andreas Persson * |
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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 * |
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#include "PluginDssi.h" |
#include "PluginDssi.h" |
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#include "../../engines/gig/EngineChannel.h" |
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namespace { |
namespace { |
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// *************** PluginDssi *************** |
// *************** PluginDssi *************** |
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// * |
// * |
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PluginDssi::PluginDssi(unsigned long SampleRate) { |
PluginDssi::PluginDssi(unsigned long SampleRate) : |
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Out[0] = 0; |
RefCount(0) { |
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Out[1] = 0; |
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// As there is no way in DSSI of knowing a max value of the |
// As there is no way in DSSI of knowing a max value of the |
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// output buffer size, we set the audio device buffer size to |
// output buffer size, we set the audio device buffer size to |
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// 128 and let RunSynth call Render in a loop if needed. |
// 128 and let RunSynth call Render in a loop if needed. |
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Init(SampleRate, 128); |
Init(SampleRate, 128); |
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} |
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PluginDssi* PluginInstance::plugin = 0; |
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PluginInstance::PluginInstance(unsigned long SampleRate) { |
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Out[0] = 0; |
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Out[1] = 0; |
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uint outputChannel = 0; |
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uint midiPort = 0; |
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if (!plugin) { |
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plugin = new PluginDssi(SampleRate); |
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} |
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plugin->RefCount++; |
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pChannel = global->pSampler->AddSamplerChannel(); |
pChannel = plugin->global->pSampler->AddSamplerChannel(); |
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pChannel->SetEngineType("gig"); |
pChannel->SetEngineType("gig"); |
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pChannel->SetAudioOutputDevice(pAudioDevice); |
pChannel->SetAudioOutputDevice(plugin->pAudioDevice); |
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pChannel->SetMidiInputDevice(pMidiDevice); |
LinuxSampler::MidiInputPort* port = plugin->pMidiDevice->CreateMidiPort(); |
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} |
port->Connect(pChannel->GetEngineChannel(), LinuxSampler::midi_chan_all); |
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// TODO: remove dependency on gig engine |
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LinuxSampler::gig::EngineChannel* engineChannel = |
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(LinuxSampler::gig::EngineChannel*)pChannel->GetEngineChannel(); |
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// TODO: pChannelLeft and pChannelRight are meant to be |
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// protected |
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engineChannel->pChannelLeft = new LinuxSampler::AudioChannel(0, 0, 0); |
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engineChannel->pChannelRight = new LinuxSampler::AudioChannel(1, 0, 0); |
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} |
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PluginInstance::~PluginInstance() { |
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LinuxSampler::gig::EngineChannel* engineChannel = |
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(LinuxSampler::gig::EngineChannel*)pChannel->GetEngineChannel(); |
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delete engineChannel->pChannelLeft; |
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delete engineChannel->pChannelRight; |
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LinuxSampler::MidiInputPort* port = engineChannel->pMidiInputPort; |
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if (--plugin->RefCount == 0) { |
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delete plugin; |
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plugin = 0; |
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} else { |
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plugin->global->pSampler->RemoveSamplerChannel(pChannel); |
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} |
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PluginDssi::~PluginDssi() { |
LinuxSampler::MidiInputDevicePlugin::DeleteMidiPort(port); |
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} |
} |
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void PluginDssi::ConnectPort(unsigned long Port, LADSPA_Data* DataLocation) { |
void PluginInstance::ConnectPort(unsigned long Port, LADSPA_Data* DataLocation) { |
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if (Port < 2) Out[Port] = DataLocation; |
if (Port < 2) Out[Port] = DataLocation; |
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} |
} |
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char* PluginDssi::Configure(const char* Key, const char* Value) { |
char* PluginInstance::Configure(const char* Key, const char* Value) { |
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dmsg(2, ("linuxsampler: configure Key=%s Value=%s\n", Key, Value)); |
dmsg(2, ("linuxsampler: configure Key=%s Value=%s\n", Key, Value)); |
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if (strcmp(Key, "instrument") == 0 && strcmp(Value, "") != 0) { |
if (strcmp(Key, "instrument") == 0 && strcmp(Value, "") != 0) { |
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return 0; |
return 0; |
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} |
} |
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inline void PluginDssi::RunSynth(unsigned long SampleCount, |
inline void PluginInstance::RunMultipleSynths(unsigned long InstanceCount, |
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snd_seq_event_t* Events, |
LADSPA_Handle* Instances, |
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unsigned long EventCount) { |
unsigned long SampleCount, |
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LinuxSampler::MidiInputPort* port = pMidiDevice->Port(); |
snd_seq_event_t** Events, |
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unsigned long* EventCounts) { |
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if (InstanceCount == 0) return; |
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LinuxSampler::AudioOutputDevicePlugin* audioDevice = |
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static_cast<PluginInstance*>(Instances[0])->plugin->pAudioDevice; |
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unsigned eventPosArr[InstanceCount]; |
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for (unsigned long i = 0 ; i < InstanceCount ; i++) eventPosArr[i] = 0; |
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int samplePos = 0; |
int samplePos = 0; |
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unsigned eventPos = 0; |
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while (SampleCount) { |
while (SampleCount) { |
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int samples = std::min(SampleCount, 128UL); |
int samples = std::min(SampleCount, 128UL); |
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for ( ; eventPos < EventCount ; eventPos++) { |
for (unsigned long i = 0 ; i < InstanceCount ; i++) { |
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snd_seq_event_t* ev = &Events[eventPos]; |
PluginInstance* instance = static_cast<PluginInstance*>(Instances[i]); |
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int time = ev->time.tick - samplePos; |
LinuxSampler::EngineChannel* engineChannel = |
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if (time >= samples) break; |
instance->pChannel->GetEngineChannel(); |
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switch (ev->type) { |
LinuxSampler::MidiInputPort* port = engineChannel->GetMidiInputPort(); |
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case SND_SEQ_EVENT_CONTROLLER: |
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port->DispatchControlChange(ev->data.control.param, |
snd_seq_event_t* events = Events[i]; |
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ev->data.control.value, |
unsigned& eventPos = eventPosArr[i]; |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_CHANPRESS: |
for ( ; eventPos < EventCounts[i] ; eventPos++) { |
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port->DispatchControlChange(128, ev->data.control.value, |
snd_seq_event_t* ev = &events[eventPos]; |
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int time = ev->time.tick - samplePos; |
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if (time >= samples) break; |
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switch (ev->type) { |
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case SND_SEQ_EVENT_CONTROLLER: |
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port->DispatchControlChange(ev->data.control.param, |
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ev->data.control.value, |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_CHANPRESS: |
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port->DispatchControlChange(128, ev->data.control.value, |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_PITCHBEND: |
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port->DispatchPitchbend(ev->data.control.value, |
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ev->data.control.channel, time); |
ev->data.control.channel, time); |
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break; |
break; |
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case SND_SEQ_EVENT_NOTEON: |
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port->DispatchNoteOn(ev->data.note.note, |
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ev->data.note.velocity, |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_NOTEOFF: |
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port->DispatchNoteOff(ev->data.note.note, |
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ev->data.note.velocity, |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_SYSEX: |
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port->DispatchSysex(ev->data.ext.ptr, ev->data.ext.len); |
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break; |
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} |
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} |
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case SND_SEQ_EVENT_PITCHBEND: |
LinuxSampler::gig::EngineChannel* gigEngineChannel = |
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port->DispatchPitchbend(ev->data.control.value, |
(LinuxSampler::gig::EngineChannel*)engineChannel; |
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ev->data.control.channel, time); |
gigEngineChannel->pChannelLeft->SetBuffer(instance->Out[0] + samplePos); |
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break; |
gigEngineChannel->pChannelRight->SetBuffer(instance->Out[1] + samplePos); |
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if (i) { |
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case SND_SEQ_EVENT_NOTEON: |
gigEngineChannel->pChannelLeft->Clear(samples); |
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port->DispatchNoteOn(ev->data.note.note, |
gigEngineChannel->pChannelRight->Clear(samples); |
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ev->data.note.velocity, |
} else { |
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ev->data.control.channel, time); |
// the buffer set in the audio device is cleared |
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break; |
// by Render |
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audioDevice->Channel(0)->SetBuffer(instance->Out[0] + samplePos); |
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case SND_SEQ_EVENT_NOTEOFF: |
audioDevice->Channel(1)->SetBuffer(instance->Out[1] + samplePos); |
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port->DispatchNoteOff(ev->data.note.note, |
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ev->data.note.velocity, |
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ev->data.control.channel, time); |
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break; |
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case SND_SEQ_EVENT_SYSEX: |
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port->DispatchSysex(ev->data.ext.ptr, ev->data.ext.len); |
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break; |
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} |
} |
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} |
} |
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pAudioDevice->Channel(0)->SetBuffer(Out[0] + samplePos); |
audioDevice->Render(samples); |
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pAudioDevice->Channel(1)->SetBuffer(Out[1] + samplePos); |
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pAudioDevice->Render(samples); |
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samplePos += samples; |
samplePos += samples; |
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SampleCount -= samples; |
SampleCount -= samples; |
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} |
} |
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} |
} |
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void PluginDssi::Activate() { |
void PluginInstance::Activate() { |
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dmsg(2, ("linuxsampler: activate instance=%p\n", static_cast<void*>(this))); |
dmsg(2, ("linuxsampler: activate instance=%p\n", static_cast<void*>(this))); |
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pMidiDevice->Port()->DispatchControlChange(123, 0, 0, 0); // all sound off |
pChannel->GetEngineChannel()->GetMidiInputPort()->DispatchControlChange(123, 0, 0, 0); // all sound off |
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} |
} |
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LADSPA_Handle instantiate(const LADSPA_Descriptor* Descriptor, |
LADSPA_Handle instantiate(const LADSPA_Descriptor* Descriptor, |
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unsigned long SampleRate) { |
unsigned long SampleRate) { |
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return new PluginDssi(SampleRate); |
return new PluginInstance(SampleRate); |
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} |
} |
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void cleanup(LADSPA_Handle Instance) { |
void cleanup(LADSPA_Handle Instance) { |
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dmsg(2, ("linuxsampler: cleanup Instance=%p\n", static_cast<void*>(Instance))); |
dmsg(2, ("linuxsampler: cleanup Instance=%p\n", static_cast<void*>(Instance))); |
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delete static_cast<PluginDssi*>(Instance); |
delete static_cast<PluginInstance*>(Instance); |
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} |
} |
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void activate(LADSPA_Handle Instance) { |
void activate(LADSPA_Handle Instance) { |
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static_cast<PluginDssi*>(Instance)->Activate(); |
static_cast<PluginInstance*>(Instance)->Activate(); |
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} |
} |
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void connect_port(LADSPA_Handle Instance, unsigned long Port, |
void connect_port(LADSPA_Handle Instance, unsigned long Port, |
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LADSPA_Data* DataLocation) { |
LADSPA_Data* DataLocation) { |
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static_cast<PluginDssi*>(Instance)->ConnectPort(Port, DataLocation); |
static_cast<PluginInstance*>(Instance)->ConnectPort(Port, DataLocation); |
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} |
} |
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void run(LADSPA_Handle Instance, unsigned long SampleCount) { |
void run(LADSPA_Handle Instance, unsigned long SampleCount) { |
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static_cast<PluginDssi*>(Instance)->RunSynth(SampleCount, 0, 0); |
return; |
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} |
} |
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// *************** DSSI callback functions *************** |
// *************** DSSI callback functions *************** |
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// * |
// * |
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void run_synth(LADSPA_Handle Instance, unsigned long SampleCount, |
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snd_seq_event_t* Events, unsigned long EventCount) { |
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static_cast<PluginDssi*>(Instance)->RunSynth(SampleCount, Events, EventCount); |
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} |
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void run_multiple_synths(unsigned long InstanceCount, |
void run_multiple_synths(unsigned long InstanceCount, |
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LADSPA_Handle* Instances, |
LADSPA_Handle* Instances, |
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unsigned long SampleCount, |
unsigned long SampleCount, |
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snd_seq_event_t** Events, |
snd_seq_event_t** Events, |
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unsigned long* EventCounts) |
unsigned long* EventCounts) { |
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{ |
PluginInstance::RunMultipleSynths(InstanceCount, Instances, |
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for (unsigned long i = 0 ; i < InstanceCount ; i++) { |
SampleCount, Events, |
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static_cast<PluginDssi*>(Instances[i])->RunSynth(SampleCount, Events[i], |
EventCounts); |
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EventCounts[i]); |
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} |
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} |
} |
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char* configure(LADSPA_Handle Instance, const char* Key, const char* Value) { |
char* configure(LADSPA_Handle Instance, const char* Key, const char* Value) { |
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return static_cast<PluginDssi*>(Instance)->Configure(Key, Value); |
return static_cast<PluginInstance*>(Instance)->Configure(Key, Value); |
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} |
} |
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Ladspa.Name = "LinuxSampler"; |
Ladspa.Name = "LinuxSampler"; |
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Ladspa.Maker = "linuxsampler.org"; |
Ladspa.Maker = "linuxsampler.org"; |
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Ladspa.Copyright = "(C) 2003,2004 Benno Senoner and Christian Schoenebeck, " |
Ladspa.Copyright = "(C) 2003,2004 Benno Senoner and Christian Schoenebeck, " |
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"2005-2008 Christian Schoenebeck"; |
"2005-2009 Christian Schoenebeck"; |
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Ladspa.PortCount = 2; |
Ladspa.PortCount = 2; |
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Ladspa.ImplementationData = 0; |
Ladspa.ImplementationData = 0; |
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Ladspa.PortDescriptors = PortDescriptors; |
Ladspa.PortDescriptors = PortDescriptors; |
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Dssi.get_program = 0; |
Dssi.get_program = 0; |
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Dssi.get_midi_controller_for_port = 0; |
Dssi.get_midi_controller_for_port = 0; |
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Dssi.select_program = 0; |
Dssi.select_program = 0; |
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Dssi.run_synth = run_synth; |
Dssi.run_synth = 0; |
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Dssi.run_synth_adding = 0; |
Dssi.run_synth_adding = 0; |
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Dssi.run_multiple_synths = run_multiple_synths; |
Dssi.run_multiple_synths = run_multiple_synths; |
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Dssi.run_multiple_synths_adding = 0; |
Dssi.run_multiple_synths_adding = 0; |