diff options
Diffstat (limited to 'muse_qt4_evolution/synti/zynaddsubfx/Seq/Sequencer.C')
-rw-r--r-- | muse_qt4_evolution/synti/zynaddsubfx/Seq/Sequencer.C | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/muse_qt4_evolution/synti/zynaddsubfx/Seq/Sequencer.C b/muse_qt4_evolution/synti/zynaddsubfx/Seq/Sequencer.C new file mode 100644 index 00000000..d81ee611 --- /dev/null +++ b/muse_qt4_evolution/synti/zynaddsubfx/Seq/Sequencer.C @@ -0,0 +1,165 @@ +/* + ZynAddSubFX - a software synthesizer + + Sequencer.C - The Sequencer + Copyright (C) 2003-2005 Nasca Octavian Paul + Author: Nasca Octavian Paul + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License + as published by the Free Software Foundation. + + 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 (version 2) for more details. + + You should have received a copy of the GNU General Public License (version 2) + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ + +#include <math.h> +#include <stdlib.h> +#include <stdio.h> + +#include <sys/time.h> +#include <time.h> + +#include "Sequencer.h" + + + +Sequencer::Sequencer(){ + play=0; + for (int i=0;i<NUM_MIDI_TRACKS;i++){ + miditrack[i].track.first=NULL; + miditrack[i].track.current=NULL; + miditrack[i].track.size=0; + miditrack[i].track.length=0.0; + miditrack[i].record.first=NULL; + miditrack[i].record.current=NULL; + miditrack[i].record.size=0; + miditrack[i].record.length=0.0; + + nextevent[i].time=0.0; + resettime(&playtime[i]); + }; + + setplayspeed(0); +}; + +Sequencer::~Sequencer(){ + for (int i=0;i<NUM_MIDI_TRACKS;i++){ + deletelist(&miditrack[i].track); + deletelist(&miditrack[i].record); + }; +}; + + +int Sequencer::importmidifile(char *filename){ + if (midifile.loadfile(filename)<0) return(-1); + + for (int i=0;i<NUM_MIDI_TRACKS;i++){ + deletelist(&miditrack[i].record); + }; + if (midifile.parsemidifile(this)<0) return(-1); + + //copy the "record" track to the main track + for (int i=0;i<NUM_MIDI_TRACKS;i++){ + deletelist(&miditrack[i].track); + miditrack[i].track=miditrack[i].record; + deletelistreference(&miditrack[i].record); + }; + return(0); +}; + + + +void Sequencer::startplay(){ + if (play!=0) return; + for (int i=0;i<NUM_MIDI_TRACKS;i++) resettime(&playtime[i]); + + for (int i=0;i<NUM_MIDI_TRACKS;i++){ + rewindlist(&miditrack[i].track); + }; + play=1; + +}; +void Sequencer::stopplay(){ + if (play==0) return; + play=0; +}; + +// ************ Player stuff *************** + +int Sequencer::getevent(char ntrack,int *midich, int *type,int *par1, int *par2){ + *type=0; + if (play==0) return(-1); + + //test +// if (ntrack!=0) return(-1); + + updatecounter(&playtime[(int)ntrack]); + +// printf("%g %g\n",nextevent[ntrack].time,playtime[ntrack].abs); + + if (nextevent[(int)ntrack].time<playtime[(int)ntrack].abs) readevent(&miditrack[(int)ntrack].track,&nextevent[(int)ntrack].ev); + else return(-1); + if (nextevent[(int)ntrack].ev.type==-1) return(-1); +// printf("********************************\n"); + + //sa pun aici o protectie. a.i. daca distanta dintre timpul curent si eveliment e prea mare (>1sec) sa elimin nota + + if (ntrack==1) printf("_ %f %.2f (%d)\n",nextevent[(int)ntrack].time,playtime[(int)ntrack].abs,nextevent[(int)ntrack].ev.par2); + + *type=nextevent[(int)ntrack].ev.type; + *par1=nextevent[(int)ntrack].ev.par1; + *par2=nextevent[(int)ntrack].ev.par2; + *midich=nextevent[(int)ntrack].ev.channel; + + + double dt=nextevent[(int)ntrack].ev.deltatime*0.0001*realplayspeed; + printf("zzzzzzzzzzzzzz[%d] %d\n",ntrack,nextevent[(int)ntrack].ev.deltatime); + nextevent[(int)ntrack].time+=dt; + +// printf("%f - %d %d \n",nextevent[ntrack].time,par1,par2); + return(0);//?? sau 1 +}; + +/************** Timer stuff ***************/ + +void Sequencer::resettime(timestruct *t){ + t->abs=0.0; + t->rel=0.0; + + timeval tval; + + t->last=0.0; + #ifndef OS_WINDOWS + if (gettimeofday(&tval,NULL)==0) + t->last=tval.tv_sec+tval.tv_usec*0.000001; + #endif + +}; + +void Sequencer::updatecounter(timestruct *t){ + timeval tval; + double current=0.0; + #ifndef OS_WINDOWS + if (gettimeofday(&tval,NULL)==0) + current=tval.tv_sec+tval.tv_usec*0.000001; + #endif + + t->rel=current - t->last; + t->abs+=t->rel; + t->last=current; + +// printf("%f %f %f\n",t->last,t->abs,t->rel); +}; + +void Sequencer::setplayspeed(int speed){ + playspeed=speed; + realplayspeed=pow(10.0,speed/128.0); +}; |