360 |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
361 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
362 |
|
|
363 |
|
// We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned |
364 |
|
// in each audio fragment. All subsequent request for spawning new |
365 |
|
// voices in the same audio fragment will be ignored. |
366 |
|
VoiceSpawnsLeft = CONFIG_MAX_VOICES; |
367 |
|
|
368 |
// get all events from the engine's global input event queue which belong to the current fragment |
// get all events from the engine's global input event queue which belong to the current fragment |
369 |
// (these are usually just SysEx messages) |
// (these are usually just SysEx messages) |
370 |
ImportEvents(Samples); |
ImportEvents(Samples); |
383 |
} |
} |
384 |
} |
} |
385 |
|
|
|
// We only allow a maximum of CONFIG_MAX_VOICES voices to be stolen |
|
|
// in each audio fragment. All subsequent request for spawning new |
|
|
// voices in the same audio fragment will be ignored. |
|
|
VoiceTheftsLeft = CONFIG_MAX_VOICES; |
|
|
|
|
386 |
// reset internal voice counter (just for statistic of active voices) |
// reset internal voice counter (just for statistic of active voices) |
387 |
ActiveVoiceCountTemp = 0; |
ActiveVoiceCountTemp = 0; |
388 |
|
|
|
|
|
389 |
// handle events on all engine channels |
// handle events on all engine channels |
390 |
for (int i = 0; i < engineChannels.size(); i++) { |
for (int i = 0; i < engineChannels.size(); i++) { |
391 |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
744 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
745 |
} |
} |
746 |
else { // on success |
else { // on success |
747 |
|
--VoiceSpawnsLeft; |
748 |
uint** ppKeyGroup = NULL; |
uint** ppKeyGroup = NULL; |
749 |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
750 |
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
754 |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
755 |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
756 |
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
757 |
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent); |
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) { |
758 |
|
itVoiceToBeKilled->Kill(itNoteOnEvent); |
759 |
|
--VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict |
760 |
|
} |
761 |
} |
} |
762 |
} |
} |
763 |
} |
} |
803 |
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
804 |
*/ |
*/ |
805 |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
806 |
if (!VoiceTheftsLeft) { |
if (VoiceSpawnsLeft <= 0) { |
807 |
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
808 |
return -1; |
return -1; |
809 |
} |
} |
822 |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
823 |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
824 |
// proceed iterating if voice was created in this fragment cycle |
// proceed iterating if voice was created in this fragment cycle |
825 |
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
826 |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
827 |
if (itSelectedVoice && itSelectedVoice->hasRendered()) break; |
if (itSelectedVoice && itSelectedVoice->IsStealable()) break; |
828 |
} // no break - intentional ! |
} // no break - intentional ! |
829 |
|
|
830 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
836 |
itSelectedVoice = this->itLastStolenVoice; |
itSelectedVoice = this->itLastStolenVoice; |
837 |
do { |
do { |
838 |
++itSelectedVoice; |
++itSelectedVoice; |
839 |
} while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle |
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
840 |
// found a "stealable" voice ? |
// found a "stealable" voice ? |
841 |
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
842 |
// remember which voice we stole, so we can simply proceed on next voice stealing |
// remember which voice we stole, so we can simply proceed on next voice stealing |
843 |
this->itLastStolenVoice = itSelectedVoice; |
this->itLastStolenVoice = itSelectedVoice; |
844 |
break; // selection succeeded |
break; // selection succeeded |
850 |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
851 |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
852 |
// proceed iterating if voice was created in this fragment cycle |
// proceed iterating if voice was created in this fragment cycle |
853 |
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
854 |
// found a "stealable" voice ? |
// found a "stealable" voice ? |
855 |
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
856 |
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
857 |
this->iuiLastStolenKey = iuiSelectedKey; |
this->iuiLastStolenKey = iuiSelectedKey; |
858 |
this->itLastStolenVoice = itSelectedVoice; |
this->itLastStolenVoice = itSelectedVoice; |
874 |
// if we couldn't steal a voice from the same engine channel then |
// if we couldn't steal a voice from the same engine channel then |
875 |
// steal oldest voice on the oldest key from any other engine channel |
// steal oldest voice on the oldest key from any other engine channel |
876 |
// (the smaller engine channel number, the higher priority) |
// (the smaller engine channel number, the higher priority) |
877 |
if (!itSelectedVoice || !itSelectedVoice->hasRendered()) { |
if (!itSelectedVoice || !itSelectedVoice->IsStealable()) { |
878 |
EngineChannel* pSelectedChannel; |
EngineChannel* pSelectedChannel; |
879 |
int iChannelIndex; |
int iChannelIndex; |
880 |
// select engine channel |
// select engine channel |
885 |
iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); |
iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); |
886 |
pSelectedChannel = engineChannels[iChannelIndex]; |
pSelectedChannel = engineChannels[iChannelIndex]; |
887 |
} |
} |
888 |
// iterate through engine channels |
|
889 |
while (true) { |
// if we already stole in this fragment, try to proceed on same key |
890 |
// if we already stole in this fragment, try to proceed on same key |
if (this->itLastStolenVoiceGlobally) { |
891 |
if (this->itLastStolenVoiceGlobally) { |
itSelectedVoice = this->itLastStolenVoiceGlobally; |
892 |
itSelectedVoice = this->itLastStolenVoiceGlobally; |
do { |
893 |
do { |
++itSelectedVoice; |
894 |
++itSelectedVoice; |
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
895 |
} while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle |
} |
896 |
// break if selection succeeded |
|
897 |
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
#if CONFIG_DEVMODE |
898 |
// remember which voice we stole, so we can simply proceed on next voice stealing |
EngineChannel* pBegin = pSelectedChannel; // to detect endless loop |
899 |
this->itLastStolenVoiceGlobally = itSelectedVoice; |
#endif // CONFIG_DEVMODE |
900 |
break; // selection succeeded |
|
901 |
} |
// did we find a 'stealable' voice? |
902 |
} |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
903 |
|
// remember which voice we stole, so we can simply proceed on next voice stealing |
904 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
905 |
|
} else while (true) { // iterate through engine channels |
906 |
// get (next) oldest key |
// get (next) oldest key |
907 |
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pSelectedChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first(); |
908 |
|
this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above) |
909 |
while (iuiSelectedKey) { |
while (iuiSelectedKey) { |
910 |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
911 |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
912 |
// proceed iterating if voice was created in this fragment cycle |
// proceed iterating if voice was created in this fragment cycle |
913 |
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
914 |
// found a "stealable" voice ? |
// found a "stealable" voice ? |
915 |
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
916 |
// remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing |
// remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing |
917 |
this->iuiLastStolenKeyGlobally = iuiSelectedKey; |
this->iuiLastStolenKeyGlobally = iuiSelectedKey; |
918 |
this->itLastStolenVoiceGlobally = itSelectedVoice; |
this->itLastStolenVoiceGlobally = itSelectedVoice; |
919 |
this->pLastStolenChannel = pSelectedChannel; |
this->pLastStolenChannel = pSelectedChannel; |
920 |
break; // selection succeeded |
goto stealable_voice_found; // selection succeeded |
921 |
} |
} |
922 |
++iuiSelectedKey; // get next key on current engine channel |
++iuiSelectedKey; // get next key on current engine channel |
923 |
} |
} |
924 |
// get next engine channel |
// get next engine channel |
925 |
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
926 |
pSelectedChannel = engineChannels[iChannelIndex]; |
pSelectedChannel = engineChannels[iChannelIndex]; |
927 |
|
|
928 |
|
#if CONFIG_DEVMODE |
929 |
|
if (pSelectedChannel == pBegin) { |
930 |
|
dmsg(1,("FATAL ERROR: voice stealing endless loop!\n")); |
931 |
|
dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft)); |
932 |
|
dmsg(1,("Exiting.\n")); |
933 |
|
exit(-1); |
934 |
|
} |
935 |
|
#endif // CONFIG_DEVMODE |
936 |
} |
} |
937 |
} |
} |
938 |
|
|
939 |
|
// jump point if a 'stealable' voice was found |
940 |
|
stealable_voice_found: |
941 |
|
|
942 |
#if CONFIG_DEVMODE |
#if CONFIG_DEVMODE |
943 |
if (!itSelectedVoice->IsActive()) { |
if (!itSelectedVoice->IsActive()) { |
944 |
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
949 |
// now kill the selected voice |
// now kill the selected voice |
950 |
itSelectedVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
951 |
|
|
952 |
--VoiceTheftsLeft; |
--VoiceSpawnsLeft; |
953 |
|
|
954 |
return 0; // success |
return 0; // success |
955 |
} |
} |
1025 |
case 7: { // volume |
case 7: { // volume |
1026 |
//TODO: not sample accurate yet |
//TODO: not sample accurate yet |
1027 |
pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
1028 |
|
pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
1029 |
break; |
break; |
1030 |
} |
} |
1031 |
case 10: { // panpot |
case 10: { // panpot |
1225 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
1226 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
1227 |
itVoice->Kill(itKillEvent); |
itVoice->Kill(itKillEvent); |
1228 |
|
--VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead |
1229 |
} |
} |
1230 |
} |
} |
1231 |
} |
} |
1282 |
} |
} |
1283 |
|
|
1284 |
String Engine::Version() { |
String Engine::Version() { |
1285 |
String s = "$Revision: 1.42 $"; |
String s = "$Revision: 1.45 $"; |
1286 |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
1287 |
} |
} |
1288 |
|
|