engines/gig/Engine.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck    *
 *   Copyright (C) 2005-2008 Christian Schoenebeck                         *
 *   Copyright (C) 2009-2010 Christian Schoenebeck and Grigor Iliev        *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include "Engine.h"
#include "EngineChannel.h"

namespace LinuxSampler { namespace gig {
    Engine::Format Engine::GetEngineFormat() { return GIG; }

    /**
     *  Reacts on supported control change commands (e.g. pitch bend wheel,
     *  modulation wheel, aftertouch).
     *
     *  @param pEngineChannel - engine channel on which this event occured on
     *  @param itControlChangeEvent - controller, value and time stamp of the event
     */
    void Engine::ProcessControlChange (
        LinuxSampler::EngineChannel*  pEngineChannel,
        Pool<Event>::Iterator&        itControlChangeEvent
    ) {
        dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));

        EngineChannel* pChannel = dynamic_cast<EngineChannel*>(pEngineChannel);
        // handle the "control triggered" MIDI rule: a control change
        // event can trigger a new note on or note off event
        if (pChannel->pInstrument) {

            ::gig::MidiRule* rule;
            for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) {

                if (::gig::MidiRuleCtrlTrigger* ctrlTrigger =
                    dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) {
                    if (itControlChangeEvent->Param.CC.Controller ==
                        ctrlTrigger->ControllerNumber) {

                        uint8_t oldCCValue = pChannel->ControllerTable[
                            itControlChangeEvent->Param.CC.Controller];
                        uint8_t newCCValue = itControlChangeEvent->Param.CC.Value;

                        for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) {
                            ::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger =
                                  &ctrlTrigger->pTriggers[i];

                            // check if the controller has passed the
                            // trigger point in the right direction
                            if ((pTrigger->Descending &&
                                 oldCCValue > pTrigger->TriggerPoint &&
                                 newCCValue <= pTrigger->TriggerPoint) ||
                                (!pTrigger->Descending &&
                                 oldCCValue < pTrigger->TriggerPoint &&
                                 newCCValue >= pTrigger->TriggerPoint)) {

                                RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend();
                                if (itNewEvent) {
                                    *itNewEvent = *itControlChangeEvent;
                                    itNewEvent->Param.Note.Key = pTrigger->Key;

                                    if (pTrigger->NoteOff || pTrigger->Velocity == 0) {
                                        itNewEvent->Type = Event::type_note_off;
                                        itNewEvent->Param.Note.Velocity = 100;

                                        ProcessNoteOff(pEngineChannel, itNewEvent);
                                    } else {
                                        itNewEvent->Type = Event::type_note_on;
                                        //TODO: if Velocity is 255, the triggered velocity should
                                        // depend on how fast the controller is moving
                                        itNewEvent->Param.Note.Velocity =
                                            pTrigger->Velocity == 255 ? 100 :
                                            pTrigger->Velocity;

                                        ProcessNoteOn(pEngineChannel, itNewEvent);
                                    }
                                }
                                else dmsg(1,("Event pool emtpy!\n"));
                            }
                        }
                    }
                }
            }
        }

        // update controller value in the engine channel's controller table
        pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;

        ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent);

        // handle FX send controllers
        ProcessFxSendControllers(pChannel, itControlChangeEvent);
    }

    void Engine::ProcessChannelPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itChannelPressureEvent) {
        // if required: engine global aftertouch handling (apart from the per voice handling)
    }

    void Engine::ProcessPolyphonicKeyPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNotePressureEvent) {
        // if required: engine global aftertouch handling (apart from the per voice handling)
    }

    DiskThread* Engine::CreateDiskThread() {
        return new DiskThread (
            iMaxDiskStreams,
            ((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
            &instruments
        );
    }

    void Engine::TriggerNewVoices (
        LinuxSampler::EngineChannel* pEngineChannel,
        RTList<Event>::Iterator&     itNoteOnEvent,
        bool                         HandleKeyGroupConflicts
    ) {
        EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
        // first, get total amount of required voices (dependant on amount of layers)
        ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
        if (pRegion && !RegionSuspended(pRegion)) {
            int voicesRequired = pRegion->Layers;
            // now launch the required amount of voices
            for (int i = 0; i < voicesRequired; i++)
                LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts);
        }
    }

    void Engine::TriggerReleaseVoices (
        LinuxSampler::EngineChannel*  pEngineChannel,
        RTList<Event>::Iterator&      itNoteOffEvent
    ) {
        EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
        MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
        // first, get total amount of required voices (dependant on amount of layers)
        ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key);
        if (pRegion) {
            int voicesRequired = pRegion->Layers;

            // MIDI note-on velocity is used instead of note-off velocity
            itNoteOffEvent->Param.Note.Velocity = pKey->Velocity;

            // now launch the required amount of voices
            for (int i = 0; i < voicesRequired; i++)
                LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
        }
    }

    Pool<Voice>::Iterator Engine::LaunchVoice (
        LinuxSampler::EngineChannel*  pEngineChannel,
        Pool<Event>::Iterator&        itNoteOnEvent,
        int                           iLayer,
        bool                          ReleaseTriggerVoice,
        bool                          VoiceStealing,
        bool                          HandleKeyGroupConflicts
    ) {
        EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
        int MIDIKey = itNoteOnEvent->Param.Note.Key;
        EngineChannel::MidiKey* pKey  = &pChannel->pMIDIKeyInfo[MIDIKey];
        ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey);

        // if nothing defined for this key
        if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do

        int iKeyGroup = pRegion->KeyGroup;
        // only need to send a group event from the first voice in a layered region,
        // as all layers in a region always belongs to the same key group
        if (HandleKeyGroupConflicts && iLayer == 0) pChannel->HandleKeyGroupConflicts(iKeyGroup, itNoteOnEvent);

        Voice::type_t VoiceType = Voice::type_normal;

        // get current dimension values to select the right dimension region
        //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
        //FIXME: controller values for selecting the dimension region here are currently not sample accurate
        uint DimValues[8] = { 0 };
        for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
            switch (pRegion->pDimensionDefinitions[i].dimension) {
                case ::gig::dimension_samplechannel:
                    DimValues[i] = 0; //TODO: we currently ignore this dimension
                    break;
                case ::gig::dimension_layer:
                    DimValues[i] = iLayer;
                    break;
                case ::gig::dimension_velocity:
                    DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
                    break;
                case ::gig::dimension_channelaftertouch:
                    DimValues[i] = pChannel->ControllerTable[128];
                    break;
                case ::gig::dimension_releasetrigger:
                    VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
                    DimValues[i] = (uint) ReleaseTriggerVoice;
                    break;
                case ::gig::dimension_keyboard:
                    DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
                    break;
                case ::gig::dimension_roundrobin:
                    DimValues[i] = uint(*pChannel->pMIDIKeyInfo[MIDIKey].pRoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on in this Region
                    break;
                case ::gig::dimension_roundrobinkeyboard:
                    DimValues[i] = uint(pChannel->RoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on
                    break;
                case ::gig::dimension_random:
                    DimValues[i] = uint(Random() * pRegion->pDimensionDefinitions[i].zones);
                    break;
                case ::gig::dimension_modwheel:
                    DimValues[i] = pChannel->ControllerTable[1];
                    break;
                case ::gig::dimension_breath:
                    DimValues[i] = pChannel->ControllerTable[2];
                    break;
                case ::gig::dimension_foot:
                    DimValues[i] = pChannel->ControllerTable[4];
                    break;
                case ::gig::dimension_portamentotime:
                    DimValues[i] = pChannel->ControllerTable[5];
                    break;
                case ::gig::dimension_effect1:
                    DimValues[i] = pChannel->ControllerTable[12];
                    break;
                case ::gig::dimension_effect2:
                    DimValues[i] = pChannel->ControllerTable[13];
                    break;
                case ::gig::dimension_genpurpose1:
                    DimValues[i] = pChannel->ControllerTable[16];
                    break;
                case ::gig::dimension_genpurpose2:
                    DimValues[i] = pChannel->ControllerTable[17];
                    break;
                case ::gig::dimension_genpurpose3:
                    DimValues[i] = pChannel->ControllerTable[18];
                    break;
                case ::gig::dimension_genpurpose4:
                    DimValues[i] = pChannel->ControllerTable[19];
                    break;
                case ::gig::dimension_sustainpedal:
                    DimValues[i] = pChannel->ControllerTable[64];
                    break;
                case ::gig::dimension_portamento:
                    DimValues[i] = pChannel->ControllerTable[65];
                    break;
                case ::gig::dimension_sostenutopedal:
                    DimValues[i] = pChannel->ControllerTable[66];
                    break;
                case ::gig::dimension_softpedal:
                    DimValues[i] = pChannel->ControllerTable[67];
                    break;
                case ::gig::dimension_genpurpose5:
                    DimValues[i] = pChannel->ControllerTable[80];
                    break;
                case ::gig::dimension_genpurpose6:
                    DimValues[i] = pChannel->ControllerTable[81];
                    break;
                case ::gig::dimension_genpurpose7:
                    DimValues[i] = pChannel->ControllerTable[82];
                    break;
                case ::gig::dimension_genpurpose8:
                    DimValues[i] = pChannel->ControllerTable[83];
                    break;
                case ::gig::dimension_effect1depth:
                    DimValues[i] = pChannel->ControllerTable[91];
                    break;
                case ::gig::dimension_effect2depth:
                    DimValues[i] = pChannel->ControllerTable[92];
                    break;
                case ::gig::dimension_effect3depth:
                    DimValues[i] = pChannel->ControllerTable[93];
                    break;
                case ::gig::dimension_effect4depth:
                    DimValues[i] = pChannel->ControllerTable[94];
                    break;
                case ::gig::dimension_effect5depth:
                    DimValues[i] = pChannel->ControllerTable[95];
                    break;
                case ::gig::dimension_none:
                    std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
                    break;
                default:
                    std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
            }
        }

        // return if this is a release triggered voice and there is no
        // releasetrigger dimension (could happen if an instrument
        // change has occured between note on and off)
        if (ReleaseTriggerVoice && !(VoiceType & Voice::type_release_trigger)) return Pool<Voice>::Iterator();

        ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);

        // no need to continue if sample is silent
        if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();

        // allocate a new voice for the key
        Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();

        int res = InitNewVoice (
                pChannel, pDimRgn, itNoteOnEvent, VoiceType, iLayer,
                iKeyGroup, ReleaseTriggerVoice, VoiceStealing, itNewVoice
        );
        if (!res) return itNewVoice;

        return Pool<Voice>::Iterator(); // no free voice or error
    }

    bool Engine::DiskStreamSupported() {
        return true;
    }

    String Engine::Description() {
        return "GigaSampler Format Engine";
    }

    String Engine::Version() {
        String s = "$Revision$";
        return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
    }

}} // namespace LinuxSampler::gig
1	schoenebeck	53	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	persson	1644	* Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck *
6	persson	2072	* Copyright (C) 2005-2008 Christian Schoenebeck *
7			* Copyright (C) 2009-2010 Christian Schoenebeck and Grigor Iliev *
8	schoenebeck	53	* *
9			* This program is free software; you can redistribute it and/or modify *
10			* it under the terms of the GNU General Public License as published by *
11			* the Free Software Foundation; either version 2 of the License, or *
12			* (at your option) any later version. *
13			* *
14			* This program is distributed in the hope that it will be useful, *
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17			* GNU General Public License for more details. *
18			* *
19			* You should have received a copy of the GNU General Public License *
20			* along with this program; if not, write to the Free Software *
21			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22			* MA 02111-1307 USA *
23			***************************************************************************/
24
25			#include "Engine.h"
26	iliev	2012	#include "EngineChannel.h"
27	schoenebeck	53
28			namespace LinuxSampler { namespace gig {
29	iliev	2012	Engine::Format Engine::GetEngineFormat() { return GIG; }
30	schoenebeck	53
31	schoenebeck	412	/**
32	iliev	2012	* Reacts on supported control change commands (e.g. pitch bend wheel,
33			* modulation wheel, aftertouch).
34	schoenebeck	412	*
35	iliev	2012	* @param pEngineChannel - engine channel on which this event occured on
36			* @param itControlChangeEvent - controller, value and time stamp of the event
37	schoenebeck	412	*/
38	iliev	2012	void Engine::ProcessControlChange (
39			LinuxSampler::EngineChannel* pEngineChannel,
40			Pool<Event>::Iterator& itControlChangeEvent
41			) {
42			dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
43	persson	1039
44	iliev	2012	EngineChannel* pChannel = dynamic_cast<EngineChannel*>(pEngineChannel);
45			// handle the "control triggered" MIDI rule: a control change
46			// event can trigger a new note on or note off event
47			if (pChannel->pInstrument) {
48	schoenebeck	411
49	iliev	2012	::gig::MidiRule* rule;
50			for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) {
51	schoenebeck	411
52	iliev	2012	if (::gig::MidiRuleCtrlTrigger* ctrlTrigger =
53			dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) {
54			if (itControlChangeEvent->Param.CC.Controller ==
55			ctrlTrigger->ControllerNumber) {
56	persson	1038
57	iliev	2012	uint8_t oldCCValue = pChannel->ControllerTable[
58			itControlChangeEvent->Param.CC.Controller];
59			uint8_t newCCValue = itControlChangeEvent->Param.CC.Value;
60	schoenebeck	53
61	iliev	2012	for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) {
62			::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger =
63			&ctrlTrigger->pTriggers[i];
64	schoenebeck	53
65	iliev	2012	// check if the controller has passed the
66			// trigger point in the right direction
67			if ((pTrigger->Descending &&
68			oldCCValue > pTrigger->TriggerPoint &&
69			newCCValue <= pTrigger->TriggerPoint) \|\|
70			(!pTrigger->Descending &&
71			oldCCValue < pTrigger->TriggerPoint &&
72			newCCValue >= pTrigger->TriggerPoint)) {
73	schoenebeck	53
74	iliev	2012	RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend();
75			if (itNewEvent) {
76			itNewEvent = itControlChangeEvent;
77			itNewEvent->Param.Note.Key = pTrigger->Key;
78	schoenebeck	53
79	iliev	2012	if (pTrigger->NoteOff \|\| pTrigger->Velocity == 0) {
80			itNewEvent->Type = Event::type_note_off;
81			itNewEvent->Param.Note.Velocity = 100;
82	schoenebeck	53
83	iliev	2012	ProcessNoteOff(pEngineChannel, itNewEvent);
84			} else {
85			itNewEvent->Type = Event::type_note_on;
86			//TODO: if Velocity is 255, the triggered velocity should
87			// depend on how fast the controller is moving
88			itNewEvent->Param.Note.Velocity =
89			pTrigger->Velocity == 255 ? 100 :
90			pTrigger->Velocity;
91	schoenebeck	53
92	iliev	2012	ProcessNoteOn(pEngineChannel, itNewEvent);
93			}
94			}
95			else dmsg(1,("Event pool emtpy!\n"));
96			}
97	schoenebeck	1321	}
98			}
99			}
100			}
101			}
102
103	iliev	2012	// update controller value in the engine channel's controller table
104			pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
105	schoenebeck	1321
106	iliev	2012	ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent);
107	schoenebeck	1321
108	iliev	2012	// handle FX send controllers
109			ProcessFxSendControllers(pChannel, itControlChangeEvent);
110	schoenebeck	1321	}
111
112	schoenebeck	2559	void Engine::ProcessChannelPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itChannelPressureEvent) {
113			// if required: engine global aftertouch handling (apart from the per voice handling)
114			}
115
116			void Engine::ProcessPolyphonicKeyPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNotePressureEvent) {
117			// if required: engine global aftertouch handling (apart from the per voice handling)
118			}
119
120	iliev	2012	DiskThread* Engine::CreateDiskThread() {
121			return new DiskThread (
122			iMaxDiskStreams,
123			((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
124			&instruments
125			);
126	schoenebeck	412	}
127
128	iliev	2012	void Engine::TriggerNewVoices (
129			LinuxSampler::EngineChannel* pEngineChannel,
130			RTList<Event>::Iterator& itNoteOnEvent,
131			bool HandleKeyGroupConflicts
132			) {
133			EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
134			// first, get total amount of required voices (dependant on amount of layers)
135			::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
136			if (pRegion && !RegionSuspended(pRegion)) {
137			int voicesRequired = pRegion->Layers;
138			// now launch the required amount of voices
139			for (int i = 0; i < voicesRequired; i++)
140			LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts);
141	schoenebeck	412	}
142	persson	438	}
143	schoenebeck	412
144	iliev	2012	void Engine::TriggerReleaseVoices (
145			LinuxSampler::EngineChannel* pEngineChannel,
146			RTList<Event>::Iterator& itNoteOffEvent
147			) {
148			EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
149			MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
150			// first, get total amount of required voices (dependant on amount of layers)
151			::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key);
152			if (pRegion) {
153			int voicesRequired = pRegion->Layers;
154	schoenebeck	53
155	iliev	2012	// MIDI note-on velocity is used instead of note-off velocity
156			itNoteOffEvent->Param.Note.Velocity = pKey->Velocity;
157	schoenebeck	53
158	iliev	2012	// now launch the required amount of voices
159			for (int i = 0; i < voicesRequired; i++)
160			LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
161	schoenebeck	53	}
162	schoenebeck	412	}
163
164	iliev	2012	Pool<Voice>::Iterator Engine::LaunchVoice (
165			LinuxSampler::EngineChannel* pEngineChannel,
166			Pool<Event>::Iterator& itNoteOnEvent,
167			int iLayer,
168			bool ReleaseTriggerVoice,
169			bool VoiceStealing,
170			bool HandleKeyGroupConflicts
171			) {
172			EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
173			int MIDIKey = itNoteOnEvent->Param.Note.Key;
174			EngineChannel::MidiKey* pKey = &pChannel->pMIDIKeyInfo[MIDIKey];
175			::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey);
176	schoenebeck	53
177	schoenebeck	668	// if nothing defined for this key
178			if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
179
180	persson	2114	int iKeyGroup = pRegion->KeyGroup;
181			// only need to send a group event from the first voice in a layered region,
182			// as all layers in a region always belongs to the same key group
183			if (HandleKeyGroupConflicts && iLayer == 0) pChannel->HandleKeyGroupConflicts(iKeyGroup, itNoteOnEvent);
184	schoenebeck	669
185			Voice::type_t VoiceType = Voice::type_normal;
186
187			// get current dimension values to select the right dimension region
188			//TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
189			//FIXME: controller values for selecting the dimension region here are currently not sample accurate
190			uint DimValues[8] = { 0 };
191			for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
192			switch (pRegion->pDimensionDefinitions[i].dimension) {
193			case ::gig::dimension_samplechannel:
194			DimValues[i] = 0; //TODO: we currently ignore this dimension
195			break;
196			case ::gig::dimension_layer:
197			DimValues[i] = iLayer;
198			break;
199			case ::gig::dimension_velocity:
200			DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
201			break;
202			case ::gig::dimension_channelaftertouch:
203	iliev	2012	DimValues[i] = pChannel->ControllerTable[128];
204	schoenebeck	669	break;
205			case ::gig::dimension_releasetrigger:
206			VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
207			DimValues[i] = (uint) ReleaseTriggerVoice;
208			break;
209			case ::gig::dimension_keyboard:
210	iliev	2012	DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
211	schoenebeck	669	break;
212			case ::gig::dimension_roundrobin:
213	persson	2043	DimValues[i] = uint(*pChannel->pMIDIKeyInfo[MIDIKey].pRoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on in this Region
214	schoenebeck	669	break;
215	persson	2043	case ::gig::dimension_roundrobinkeyboard:
216			DimValues[i] = uint(pChannel->RoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on
217			break;
218	schoenebeck	669	case ::gig::dimension_random:
219	persson	2072	DimValues[i] = uint(Random() * pRegion->pDimensionDefinitions[i].zones);
220	schoenebeck	669	break;
221			case ::gig::dimension_modwheel:
222	iliev	2012	DimValues[i] = pChannel->ControllerTable[1];
223	schoenebeck	669	break;
224			case ::gig::dimension_breath:
225	iliev	2012	DimValues[i] = pChannel->ControllerTable[2];
226	schoenebeck	669	break;
227			case ::gig::dimension_foot:
228	iliev	2012	DimValues[i] = pChannel->ControllerTable[4];
229	schoenebeck	669	break;
230			case ::gig::dimension_portamentotime:
231	iliev	2012	DimValues[i] = pChannel->ControllerTable[5];
232	schoenebeck	669	break;
233			case ::gig::dimension_effect1:
234	iliev	2012	DimValues[i] = pChannel->ControllerTable[12];
235	schoenebeck	669	break;
236			case ::gig::dimension_effect2:
237	iliev	2012	DimValues[i] = pChannel->ControllerTable[13];
238	schoenebeck	669	break;
239			case ::gig::dimension_genpurpose1:
240	iliev	2012	DimValues[i] = pChannel->ControllerTable[16];
241	schoenebeck	669	break;
242			case ::gig::dimension_genpurpose2:
243	iliev	2012	DimValues[i] = pChannel->ControllerTable[17];
244	schoenebeck	669	break;
245			case ::gig::dimension_genpurpose3:
246	iliev	2012	DimValues[i] = pChannel->ControllerTable[18];
247	schoenebeck	669	break;
248			case ::gig::dimension_genpurpose4:
249	iliev	2012	DimValues[i] = pChannel->ControllerTable[19];
250	schoenebeck	669	break;
251			case ::gig::dimension_sustainpedal:
252	iliev	2012	DimValues[i] = pChannel->ControllerTable[64];
253	schoenebeck	669	break;
254			case ::gig::dimension_portamento:
255	iliev	2012	DimValues[i] = pChannel->ControllerTable[65];
256	schoenebeck	669	break;
257			case ::gig::dimension_sostenutopedal:
258	iliev	2012	DimValues[i] = pChannel->ControllerTable[66];
259	schoenebeck	669	break;
260			case ::gig::dimension_softpedal:
261	iliev	2012	DimValues[i] = pChannel->ControllerTable[67];
262	schoenebeck	669	break;
263			case ::gig::dimension_genpurpose5:
264	iliev	2012	DimValues[i] = pChannel->ControllerTable[80];
265	schoenebeck	669	break;
266			case ::gig::dimension_genpurpose6:
267	iliev	2012	DimValues[i] = pChannel->ControllerTable[81];
268	schoenebeck	669	break;
269			case ::gig::dimension_genpurpose7:
270	iliev	2012	DimValues[i] = pChannel->ControllerTable[82];
271	schoenebeck	669	break;
272			case ::gig::dimension_genpurpose8:
273	iliev	2012	DimValues[i] = pChannel->ControllerTable[83];
274	schoenebeck	669	break;
275			case ::gig::dimension_effect1depth:
276	iliev	2012	DimValues[i] = pChannel->ControllerTable[91];
277	schoenebeck	669	break;
278			case ::gig::dimension_effect2depth:
279	iliev	2012	DimValues[i] = pChannel->ControllerTable[92];
280	schoenebeck	669	break;
281			case ::gig::dimension_effect3depth:
282	iliev	2012	DimValues[i] = pChannel->ControllerTable[93];
283	schoenebeck	669	break;
284			case ::gig::dimension_effect4depth:
285	iliev	2012	DimValues[i] = pChannel->ControllerTable[94];
286	schoenebeck	669	break;
287			case ::gig::dimension_effect5depth:
288	iliev	2012	DimValues[i] = pChannel->ControllerTable[95];
289	schoenebeck	669	break;
290			case ::gig::dimension_none:
291			std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
292			break;
293			default:
294			std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
295			}
296			}
297	persson	1038
298			// return if this is a release triggered voice and there is no
299			// releasetrigger dimension (could happen if an instrument
300			// change has occured between note on and off)
301	persson	2115	if (ReleaseTriggerVoice && !(VoiceType & Voice::type_release_trigger)) return Pool<Voice>::Iterator();
302	persson	1038
303	schoenebeck	669	::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
304
305			// no need to continue if sample is silent
306			if (!pDimRgn->pSample \|\| !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
307
308	schoenebeck	233	// allocate a new voice for the key
309	schoenebeck	271	Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
310	schoenebeck	285
311	iliev	2027	int res = InitNewVoice (
312			pChannel, pDimRgn, itNoteOnEvent, VoiceType, iLayer,
313			iKeyGroup, ReleaseTriggerVoice, VoiceStealing, itNewVoice
314			);
315			if (!res) return itNewVoice;
316
317	schoenebeck	271	return Pool<Voice>::Iterator(); // no free voice or error
318	schoenebeck	233	}
319
320	schoenebeck	53	bool Engine::DiskStreamSupported() {
321			return true;
322			}
323
324			String Engine::Description() {
325	iliev	2012	return "GigaSampler Format Engine";
326	schoenebeck	53	}
327
328			String Engine::Version() {
329	schoenebeck	2494	String s = "$Revision$";
330	schoenebeck	123	return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
331	schoenebeck	53	}
332
333			}} // namespace LinuxSampler::gig