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"
#include "InstrumentScriptVM.h"

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

    LinuxSampler::InstrumentScriptVM* Engine::CreateInstrumentScriptVM() {
        return new InstrumentScriptVM; // gig format specific extended script runner
    }

    /**
     *  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;
        if (!itNoteOnEvent->Format.Gig.DimMask) { // normal case ...
            pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
        } else { // some dimension zones were overridden (i.e. by instrument script) ...
            int index = pRegion->GetDimensionRegionIndexByValue(DimValues);
            index &= ~itNoteOnEvent->Format.Gig.DimMask;
            index |=  itNoteOnEvent->Format.Gig.DimBits & itNoteOnEvent->Format.Gig.DimMask;
            pDimRgn = pRegion->pDimensionRegions[index & 255];
        }
        if (!pDimRgn) return Pool<Voice>::Iterator(); // error (could not resolve dimension region)

        // 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	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck *
6	* Copyright (C) 2005-2008 Christian Schoenebeck *
7	* Copyright (C) 2009-2010 Christian Schoenebeck and Grigor Iliev *
8	* *
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	#include "EngineChannel.h"
27	#include "InstrumentScriptVM.h"
28
29	namespace LinuxSampler { namespace gig {
30	Engine::Format Engine::GetEngineFormat() { return GIG; }
31
32	LinuxSampler::InstrumentScriptVM* Engine::CreateInstrumentScriptVM() {
33	return new InstrumentScriptVM; // gig format specific extended script runner
34	}
35
36	/**
37	* Reacts on supported control change commands (e.g. pitch bend wheel,
38	* modulation wheel, aftertouch).
39	*
40	* @param pEngineChannel - engine channel on which this event occured on
41	* @param itControlChangeEvent - controller, value and time stamp of the event
42	*/
43	void Engine::ProcessControlChange (
44	LinuxSampler::EngineChannel* pEngineChannel,
45	Pool<Event>::Iterator& itControlChangeEvent
46	) {
47	dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
48
49	EngineChannel* pChannel = dynamic_cast<EngineChannel*>(pEngineChannel);
50	// handle the "control triggered" MIDI rule: a control change
51	// event can trigger a new note on or note off event
52	if (pChannel->pInstrument) {
53
54	::gig::MidiRule* rule;
55	for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) {
56
57	if (::gig::MidiRuleCtrlTrigger* ctrlTrigger =
58	dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) {
59	if (itControlChangeEvent->Param.CC.Controller ==
60	ctrlTrigger->ControllerNumber) {
61
62	uint8_t oldCCValue = pChannel->ControllerTable[
63	itControlChangeEvent->Param.CC.Controller];
64	uint8_t newCCValue = itControlChangeEvent->Param.CC.Value;
65
66	for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) {
67	::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger =
68	&ctrlTrigger->pTriggers[i];
69
70	// check if the controller has passed the
71	// trigger point in the right direction
72	if ((pTrigger->Descending &&
73	oldCCValue > pTrigger->TriggerPoint &&
74	newCCValue <= pTrigger->TriggerPoint) \|\|
75	(!pTrigger->Descending &&
76	oldCCValue < pTrigger->TriggerPoint &&
77	newCCValue >= pTrigger->TriggerPoint)) {
78
79	RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend();
80	if (itNewEvent) {
81	itNewEvent = itControlChangeEvent;
82	itNewEvent->Param.Note.Key = pTrigger->Key;
83
84	if (pTrigger->NoteOff \|\| pTrigger->Velocity == 0) {
85	itNewEvent->Type = Event::type_note_off;
86	itNewEvent->Param.Note.Velocity = 100;
87
88	ProcessNoteOff(pEngineChannel, itNewEvent);
89	} else {
90	itNewEvent->Type = Event::type_note_on;
91	//TODO: if Velocity is 255, the triggered velocity should
92	// depend on how fast the controller is moving
93	itNewEvent->Param.Note.Velocity =
94	pTrigger->Velocity == 255 ? 100 :
95	pTrigger->Velocity;
96
97	ProcessNoteOn(pEngineChannel, itNewEvent);
98	}
99	}
100	else dmsg(1,("Event pool emtpy!\n"));
101	}
102	}
103	}
104	}
105	}
106	}
107
108	// update controller value in the engine channel's controller table
109	pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
110
111	ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent);
112
113	// handle FX send controllers
114	ProcessFxSendControllers(pChannel, itControlChangeEvent);
115	}
116
117	void Engine::ProcessChannelPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itChannelPressureEvent) {
118	// if required: engine global aftertouch handling (apart from the per voice handling)
119	}
120
121	void Engine::ProcessPolyphonicKeyPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNotePressureEvent) {
122	// if required: engine global aftertouch handling (apart from the per voice handling)
123	}
124
125	DiskThread* Engine::CreateDiskThread() {
126	return new DiskThread (
127	iMaxDiskStreams,
128	((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
129	&instruments
130	);
131	}
132
133	void Engine::TriggerNewVoices (
134	LinuxSampler::EngineChannel* pEngineChannel,
135	RTList<Event>::Iterator& itNoteOnEvent,
136	bool HandleKeyGroupConflicts
137	) {
138	EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
139	// first, get total amount of required voices (dependant on amount of layers)
140	::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
141	if (pRegion && !RegionSuspended(pRegion)) {
142	int voicesRequired = pRegion->Layers;
143	// now launch the required amount of voices
144	for (int i = 0; i < voicesRequired; i++)
145	LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts);
146	}
147	}
148
149	void Engine::TriggerReleaseVoices (
150	LinuxSampler::EngineChannel* pEngineChannel,
151	RTList<Event>::Iterator& itNoteOffEvent
152	) {
153	EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
154	MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
155	// first, get total amount of required voices (dependant on amount of layers)
156	::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key);
157	if (pRegion) {
158	int voicesRequired = pRegion->Layers;
159
160	// MIDI note-on velocity is used instead of note-off velocity
161	itNoteOffEvent->Param.Note.Velocity = pKey->Velocity;
162
163	// now launch the required amount of voices
164	for (int i = 0; i < voicesRequired; i++)
165	LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
166	}
167	}
168
169	Pool<Voice>::Iterator Engine::LaunchVoice (
170	LinuxSampler::EngineChannel* pEngineChannel,
171	Pool<Event>::Iterator& itNoteOnEvent,
172	int iLayer,
173	bool ReleaseTriggerVoice,
174	bool VoiceStealing,
175	bool HandleKeyGroupConflicts
176	) {
177	EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel);
178	int MIDIKey = itNoteOnEvent->Param.Note.Key;
179	EngineChannel::MidiKey* pKey = &pChannel->pMIDIKeyInfo[MIDIKey];
180	::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey);
181
182	// if nothing defined for this key
183	if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
184
185	int iKeyGroup = pRegion->KeyGroup;
186	// only need to send a group event from the first voice in a layered region,
187	// as all layers in a region always belongs to the same key group
188	if (HandleKeyGroupConflicts && iLayer == 0) pChannel->HandleKeyGroupConflicts(iKeyGroup, itNoteOnEvent);
189
190	Voice::type_t VoiceType = Voice::type_normal;
191
192	// get current dimension values to select the right dimension region
193	//TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
194	//FIXME: controller values for selecting the dimension region here are currently not sample accurate
195	uint DimValues[8] = { 0 };
196	for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
197	switch (pRegion->pDimensionDefinitions[i].dimension) {
198	case ::gig::dimension_samplechannel:
199	DimValues[i] = 0; //TODO: we currently ignore this dimension
200	break;
201	case ::gig::dimension_layer:
202	DimValues[i] = iLayer;
203	break;
204	case ::gig::dimension_velocity:
205	DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
206	break;
207	case ::gig::dimension_channelaftertouch:
208	DimValues[i] = pChannel->ControllerTable[128];
209	break;
210	case ::gig::dimension_releasetrigger:
211	VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
212	DimValues[i] = (uint) ReleaseTriggerVoice;
213	break;
214	case ::gig::dimension_keyboard:
215	DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
216	break;
217	case ::gig::dimension_roundrobin:
218	DimValues[i] = uint(*pChannel->pMIDIKeyInfo[MIDIKey].pRoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on in this Region
219	break;
220	case ::gig::dimension_roundrobinkeyboard:
221	DimValues[i] = uint(pChannel->RoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on
222	break;
223	case ::gig::dimension_random:
224	DimValues[i] = uint(Random() * pRegion->pDimensionDefinitions[i].zones);
225	break;
226	case ::gig::dimension_modwheel:
227	DimValues[i] = pChannel->ControllerTable[1];
228	break;
229	case ::gig::dimension_breath:
230	DimValues[i] = pChannel->ControllerTable[2];
231	break;
232	case ::gig::dimension_foot:
233	DimValues[i] = pChannel->ControllerTable[4];
234	break;
235	case ::gig::dimension_portamentotime:
236	DimValues[i] = pChannel->ControllerTable[5];
237	break;
238	case ::gig::dimension_effect1:
239	DimValues[i] = pChannel->ControllerTable[12];
240	break;
241	case ::gig::dimension_effect2:
242	DimValues[i] = pChannel->ControllerTable[13];
243	break;
244	case ::gig::dimension_genpurpose1:
245	DimValues[i] = pChannel->ControllerTable[16];
246	break;
247	case ::gig::dimension_genpurpose2:
248	DimValues[i] = pChannel->ControllerTable[17];
249	break;
250	case ::gig::dimension_genpurpose3:
251	DimValues[i] = pChannel->ControllerTable[18];
252	break;
253	case ::gig::dimension_genpurpose4:
254	DimValues[i] = pChannel->ControllerTable[19];
255	break;
256	case ::gig::dimension_sustainpedal:
257	DimValues[i] = pChannel->ControllerTable[64];
258	break;
259	case ::gig::dimension_portamento:
260	DimValues[i] = pChannel->ControllerTable[65];
261	break;
262	case ::gig::dimension_sostenutopedal:
263	DimValues[i] = pChannel->ControllerTable[66];
264	break;
265	case ::gig::dimension_softpedal:
266	DimValues[i] = pChannel->ControllerTable[67];
267	break;
268	case ::gig::dimension_genpurpose5:
269	DimValues[i] = pChannel->ControllerTable[80];
270	break;
271	case ::gig::dimension_genpurpose6:
272	DimValues[i] = pChannel->ControllerTable[81];
273	break;
274	case ::gig::dimension_genpurpose7:
275	DimValues[i] = pChannel->ControllerTable[82];
276	break;
277	case ::gig::dimension_genpurpose8:
278	DimValues[i] = pChannel->ControllerTable[83];
279	break;
280	case ::gig::dimension_effect1depth:
281	DimValues[i] = pChannel->ControllerTable[91];
282	break;
283	case ::gig::dimension_effect2depth:
284	DimValues[i] = pChannel->ControllerTable[92];
285	break;
286	case ::gig::dimension_effect3depth:
287	DimValues[i] = pChannel->ControllerTable[93];
288	break;
289	case ::gig::dimension_effect4depth:
290	DimValues[i] = pChannel->ControllerTable[94];
291	break;
292	case ::gig::dimension_effect5depth:
293	DimValues[i] = pChannel->ControllerTable[95];
294	break;
295	case ::gig::dimension_none:
296	std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
297	break;
298	default:
299	std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
300	}
301	}
302
303	// return if this is a release triggered voice and there is no
304	// releasetrigger dimension (could happen if an instrument
305	// change has occured between note on and off)
306	if (ReleaseTriggerVoice && !(VoiceType & Voice::type_release_trigger)) return Pool<Voice>::Iterator();
307
308
309	::gig::DimensionRegion* pDimRgn;
310	if (!itNoteOnEvent->Format.Gig.DimMask) { // normal case ...
311	pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
312	} else { // some dimension zones were overridden (i.e. by instrument script) ...
313	int index = pRegion->GetDimensionRegionIndexByValue(DimValues);
314	index &= ~itNoteOnEvent->Format.Gig.DimMask;
315	index \|= itNoteOnEvent->Format.Gig.DimBits & itNoteOnEvent->Format.Gig.DimMask;
316	pDimRgn = pRegion->pDimensionRegions[index & 255];
317	}
318	if (!pDimRgn) return Pool<Voice>::Iterator(); // error (could not resolve dimension region)
319
320	// no need to continue if sample is silent
321	if (!pDimRgn->pSample \|\| !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
322
323	// allocate a new voice for the key
324	Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
325
326	int res = InitNewVoice (
327	pChannel, pDimRgn, itNoteOnEvent, VoiceType, iLayer,
328	iKeyGroup, ReleaseTriggerVoice, VoiceStealing, itNewVoice
329	);
330	if (!res) return itNewVoice;
331
332	return Pool<Voice>::Iterator(); // no free voice or error
333	}
334
335	bool Engine::DiskStreamSupported() {
336	return true;
337	}
338
339	String Engine::Description() {
340	return "GigaSampler Format Engine";
341	}
342
343	String Engine::Version() {
344	String s = "$Revision$";
345	return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
346	}
347
348	}} // namespace LinuxSampler::gig