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-rw-r--r--common/qmpmidiplay.cpp404
-rw-r--r--common/qmpmidiplay.hpp137
-rw-r--r--common/qmpmidiread.cpp239
3 files changed, 0 insertions, 780 deletions
diff --git a/common/qmpmidiplay.cpp b/common/qmpmidiplay.cpp
deleted file mode 100644
index 6f69e33..0000000
--- a/common/qmpmidiplay.cpp
+++ /dev/null
@@ -1,404 +0,0 @@
-#include <cstdio>
-#include <chrono>
-#include <thread>
-#include <fluidsynth.h>
-#include "qmpmidiplay.hpp"
-#ifdef _WIN32
-#include <windows.h>
-uint64_t pf;
-#endif
-void CMidiPlayer::fluidPreInitialize()
-{
- settings=new_fluid_settings();
-}
-void CMidiPlayer::fluidInitialize()
-{
- synth=new_fluid_synth(settings);
- adriver=new_fluid_audio_driver(settings,synth);
- fluid_synth_set_chorus(synth,FLUID_CHORUS_DEFAULT_N,FLUID_CHORUS_DEFAULT_LEVEL,
- FLUID_CHORUS_DEFAULT_SPEED,FLUID_CHORUS_DEFAULT_DEPTH,
- FLUID_CHORUS_DEFAULT_TYPE);
-#ifndef _WIN32
- if(!singleInstance)
- {
- if(midiFile->getStandard()==4)
- fluid_synth_set_channel_type(synth,9,CHANNEL_TYPE_MELODIC);
- else if(midiFile->getStandard()==1)
- fluid_synth_set_channel_type(synth,9,CHANNEL_TYPE_DRUM);
- else
- {
- fluid_synth_set_channel_type(synth,9,CHANNEL_TYPE_DRUM);
- fluid_synth_bank_select(synth,9,128);
- }
- }
-#endif
-}
-void CMidiPlayer::fluidDeinitialize()
-{
- if(!synth||!adriver||!settings)return;
- delete_fluid_settings(settings);
- delete_fluid_audio_driver(adriver);
- delete_fluid_synth(synth);
- settings=NULL;synth=NULL;adriver=NULL;
-}
-void CMidiPlayer::processEvent(const SEvent *e)
-{
- switch(e->type&0xF0)
- {
- case 0x80://Note off
- fluid_synth_noteoff(synth,e->type&0x0F,e->p1);
- break;
- case 0x90://Note on
- if((mute>>(e->type&0x0F))&1)break;//muted
- if(solo&&!((solo>>(e->type&0x0F))&1))break;
- fluid_synth_noteon(synth,e->type&0x0F,e->p1,e->p2);
- break;
- case 0xB0://CC
- if(e->p1==100)rpnid=e->p2;
- if(e->p1==6)rpnval=e->p2;
- if(~rpnid&&~rpnval)
- {
- if(rpnid==0)fluid_synth_pitch_wheel_sens(synth,e->type&0x0F,rpnval);
- rpnid=rpnval=-1;
- }
- fluid_synth_cc(synth,e->type&0x0F,e->p1,e->p2);
- break;
- case 0xC0://PC
- fluid_synth_program_change(synth,e->type&0x0F,e->p1);
- break;
- case 0xE0://PW
- fluid_synth_pitch_bend(synth,e->type&0x0F,e->p1);
- break;
- case 0xF0://Meta/SysEx
- if((e->type&0x0F)==0x0F)
- {
- switch(e->p1)
- {
- case 0x51:
- ctempo=e->p2;dpt=ctempo*1000/divs;
- break;
- case 0x58:
- ctsn=e->p2>>24;
- ctsd=1<<((e->p2>>16)&0xFF);
- break;
- case 0x59:
- cks=e->p2;
- break;
- case 0x01:case 0x02:case 0x03:
- case 0x04:case 0x05:case 0x06:
- case 0x07:
- //if(e->str)puts(e->str);
- break;
- }
- }
- if((e->type&0x0F)==0x00||(e->type&0x0F)==07)
- {
- int io=0;
- if(sendSysEx)fluid_synth_sysex(synth,e->str,e->p1,NULL,&io,NULL,0);
- }
- break;
- }
-}
-void CMidiPlayer::processEventStub(const SEvent *e)
-{
- switch(e->type&0xF0)
- {
- case 0xB0://CC
- if(e->p1==100)rpnid=e->p2;
- if(e->p1==6)rpnval=e->p2;
- if(~rpnid&&~rpnval)
- {
- if(rpnid==0)ccc[e->type&0x0F][134]=rpnval;
- rpnid=rpnval=-1;
- }
- ccc[e->type&0x0F][e->p1]=e->p2;
- break;
- case 0xC0://PC
- ccc[e->type&0x0F][128]=e->p1;
- break;
- case 0xD0://CP
- ccc[e->type&0x0F][129]=e->p1;
- break;
- case 0xE0://PW
- ccc[e->type&0x0F][130]=e->p1;
- break;
- case 0xF0://Meta/SysEx
- if((e->type&0x0F)==0x0F)
- {
- switch(e->p1)
- {
- case 0x51:
- ctempo=e->p2;dpt=ctempo*1000/divs;
- ccc[0][131]=dpt;
- break;
- case 0x58:
- ccc[0][132]=e->p2;
- break;
- case 0x59:
- ccc[0][133]=e->p2;
- break;
- }
- }
- break;
- }
-}
-#ifdef _WIN32
-void w32usleep(uint64_t t)
-{
- uint64_t st=0,ct=0;
- timeBeginPeriod(1);
- QueryPerformanceCounter((LARGE_INTEGER*)&st);
- do{
- if(t>10000+(ct-st)*1000000/pf)Sleep((t-(ct-st)*1000000/pf)/2000);
- else if(t>5000+(ct-st)*1000000/pf)Sleep(1);
- else std::this_thread::yield();
- QueryPerformanceCounter((LARGE_INTEGER*)&ct);
- }while((ct-st)*1000000<t*pf);
- timeEndPeriod(1);
-}
-#endif
-void CMidiPlayer::playEvents()
-{
- for(uint32_t ct=midiFile->getEvent(0)->time;tceptr<midiFile->getEventCount();)
- {
- while(tcpaused)std::this_thread::sleep_for(std::chrono::milliseconds(100));
- while(!tcstop&&midiFile&&tceptr<midiFile->getEventCount()&&ct==midiFile->getEvent(tceptr)->time)
- processEvent(midiFile->getEvent(tceptr++));
- if(tcstop||!midiFile||tceptr>=midiFile->getEventCount())break;
- if(resumed)resumed=false;
- else
-#if 0
- w32usleep((midiFile->getEvent(tceptr)->time-ct)*(dpt/1000));
-#else
- std::this_thread::sleep_for(std::chrono::nanoseconds(midiFile->getEvent(tceptr)->time-ct)*dpt);
-#endif
- if(tcstop||!midiFile)break;
- ct=midiFile->getEvent(tceptr)->time;
- }
- while(!tcstop&&synth&&(waitvoice&&fluid_synth_get_active_voice_count(synth)>0))std::this_thread::sleep_for(std::chrono::milliseconds(2));
- finished=1;
-}
-void CMidiPlayer::fileTimer1Pass()
-{
- ftime=.0;ctempo=0x7A120;dpt=ctempo*1000/divs;
- for(uint32_t eptr=0,ct=midiFile->getEvent(0)->time;eptr<midiFile->getEventCount();)
- {
- while(eptr<midiFile->getEventCount()&&ct==midiFile->getEvent(eptr)->time)
- processEventStub(midiFile->getEvent(eptr++));
- if(eptr>=midiFile->getEventCount())break;
- ftime+=(midiFile->getEvent(eptr)->time-ct)*dpt/1e9;
- ct=midiFile->getEvent(eptr)->time;
- }
-}
-void CMidiPlayer::fileTimer2Pass()
-{
- double ctime=.0;uint32_t c=1;ctempo=0x7A120;dpt=ctempo*1000/divs;
- memset(stamps,0,sizeof(stamps));memset(ccstamps,0,sizeof(ccstamps));
- memset(ccc,0,sizeof(ccc));rpnid=rpnval=-1;for(int i=0;i<16;++i)
- {
- ccc[i][7]=100;ccc[i][10]=64;ccc[i][11]=127;
- ccc[i][11]=127;ccc[i][71]=64;ccc[i][72]=64;
- ccc[i][73]=64;ccc[i][74]=64;ccc[i][75]=64;
- ccc[i][76]=64;ccc[i][77]=64;ccc[i][78]=64;
- ccc[0][131]=dpt;ccc[0][132]=0x04021808;
- ccc[0][133]=0;ccc[0][134]=2;
- }if(midiFile->getStandard()!=4)ccc[9][0]=128;
- for(int i=0;i<16;++i)for(int j=0;j<135;++j)
- ccstamps[0][i][j]=ccc[i][j];
- for(uint32_t eptr=0,ct=midiFile->getEvent(0)->time;eptr<midiFile->getEventCount();)
- {
- while(eptr<midiFile->getEventCount()&&ct==midiFile->getEvent(eptr)->time)
- processEventStub(midiFile->getEvent(eptr++));
- if(eptr>=midiFile->getEventCount())break;
- ctime+=(midiFile->getEvent(eptr)->time-ct)*dpt/1e9;
- while(ctime>ftime*c/100.)
- {
- for(int i=0;i<16;++i)for(int j=0;j<135;++j)
- ccstamps[c][i][j]=ccc[i][j];
- stamps[c++]=eptr;
- if(c>100)break;
- }
- ct=midiFile->getEvent(eptr)->time;
- }
- while(c<101)
- {
- for(int i=0;i<16;++i)for(int j=0;j<135;++j)
- ccstamps[c][i][j]=ccc[i][j];
- stamps[c++]=midiFile->getEventCount();
- }
-}
-CMidiPlayer::CMidiPlayer(bool singleInst)
-{
- midiFile=NULL;resumed=false;singleInstance=singleInst;
- settings=NULL;synth=NULL;adriver=NULL;waitvoice=true;
-#ifdef _WIN32
- QueryPerformanceFrequency((LARGE_INTEGER*)&pf);
-#endif
-}
-CMidiPlayer::~CMidiPlayer()
-{
- if(singleInstance)fluidDeinitialize();
-}
-void CMidiPlayer::playerPanic(bool reset)
-{
- if(reset)for(int i=0;i<16;++i)
- {
- fluid_synth_pitch_bend(synth,i,8192);
- fluid_synth_cc(synth,i,7,100);
- fluid_synth_cc(synth,i,10,64);
- fluid_synth_cc(synth,i,11,127);
- }
- for(int i=0;i<16;++i)fluid_synth_all_notes_off(synth,i);
-}
-bool CMidiPlayer::playerLoadFile(const char* fn)
-{
- midiFile=new CMidiFile(fn);
- if(!midiFile->isValid())return false;
- divs=midiFile->getDivision();
- fileTimer1Pass();
- fileTimer2Pass();
- return true;
-}
-void CMidiPlayer::playerInit()
-{
- ctempo=0x7A120;ctsn=4;ctsd=4;cks=0;dpt=ctempo*1000/divs;
- tceptr=0;tcstop=0;tcpaused=0;finished=0;mute=solo=0;
- sendSysEx=true;rpnid=rpnval=-1;
- if(!singleInstance)fluidPreInitialize();
-}
-void CMidiPlayer::playerDeinit()
-{
- tceptr=0;tcstop=1;tcpaused=0;
- delete midiFile;midiFile=NULL;
- if(!singleInstance)fluidDeinitialize();
-}
-void CMidiPlayer::playerThread()
-{
- playEvents();
-}
-
-void CMidiPlayer::rendererLoadFile(const char* ofn)
-{
- settings=new_fluid_settings();
- fluid_settings_setstr(settings,"audio.file.name",ofn);
-}
-void CMidiPlayer::rendererInit(const char* fn)
-{
- finished=0;
- synth=new_fluid_synth(settings);
- player=new_fluid_player(synth);
- fluid_player_add(player,fn);
-}
-void CMidiPlayer::rendererThread()
-{
- fluid_file_renderer_t* renderer=new_fluid_file_renderer(synth);
- fluid_player_play(player);
- while(fluid_player_get_status(player)==FLUID_PLAYER_PLAYING)
- if(fluid_file_renderer_process_block(renderer)!=FLUID_OK)break;
- delete_fluid_file_renderer(renderer);
- finished=1;
-}
-void CMidiPlayer::rendererDeinit()
-{
- delete_fluid_player(player);
- delete_fluid_synth(synth);
- delete_fluid_settings(settings);
- player=NULL;synth=NULL;settings=NULL;
-}
-
-void CMidiPlayer::sendSysX(bool send){sendSysEx=send;}
-uint32_t CMidiPlayer::getStamp(int id){return stamps[id];}
-uint32_t CMidiPlayer::getTCeptr(){return tceptr;}
-void CMidiPlayer::setTCeptr(uint32_t ep,uint32_t st)
-{
- resumed=true;
- if(ep==midiFile->getEventCount())tcstop=1;else tceptr=ep;
- for(int i=0;i<16;++i)
- {
- for(int j=0;j<120;++j)fluid_synth_cc(synth,i,j,ccstamps[st][i][j]);
- fluid_synth_program_change(synth,i,ccstamps[st][i][128]);
- //fluid_synth_pitch_bend(synth,i,ccstamps[st][i][130]);
- dpt=ccstamps[st][0][131];ctempo=dpt*divs/1000;
- ctsn=ccstamps[st][0][132]>>24;ctsd=1<<((ccstamps[st][0][132]>>16)&0xFF);
- cks=ccstamps[st][0][133];
- }
-}
-double CMidiPlayer::getFtime(){return ftime;}
-void CMidiPlayer::getCurrentTimeSignature(int *n,int *d){*n=ctsn;*d=ctsd;}
-void CMidiPlayer::getCurrentKeySignature(int *ks){*ks=cks;}
-uint32_t CMidiPlayer::getFileNoteCount(){return midiFile?midiFile->getNoteCount():0;}
-uint32_t CMidiPlayer::getFileStandard(){return midiFile?midiFile->getStandard():0;}
-const char* CMidiPlayer::getTitle(){return midiFile?midiFile->getTitle():"";}
-const char* CMidiPlayer::getCopyright(){return midiFile?midiFile->getCopyright():"";}
-double CMidiPlayer::getTempo(){return 60./(ctempo/1e6)/**ctsd/4.*/;}
-uint32_t CMidiPlayer::getTCpaused(){return tcpaused;}
-void CMidiPlayer::setTCpaused(uint32_t ps){tcpaused=ps;}
-uint32_t CMidiPlayer::isFinished(){return finished;}
-void CMidiPlayer::setResumed(){resumed=true;}
-void CMidiPlayer::setWaitVoice(bool wv){waitvoice=wv;}
-void CMidiPlayer::setGain(double gain){if(settings)fluid_settings_setnum(settings,"synth.gain",gain);}
-int CMidiPlayer::getPolyphone(){return synth?fluid_synth_get_active_voice_count(synth):0;}
-int CMidiPlayer::getMaxPolyphone(){return synth?fluid_synth_get_polyphony(synth):0;}
-void CMidiPlayer::setMaxPolyphone(int p){if(synth)fluid_synth_set_polyphony(synth,p);}
-
-void CMidiPlayer::getChannelPreset(int ch,int *b,int *p,char *name)
-{
- if(!synth)return(void)(b=0,p=0,strcpy(name,""));
- fluid_synth_channel_info_t info;
- fluid_synth_get_channel_info(synth,ch,&info);
- *b=info.bank;*p=info.program;
- strcpy(name,info.name);
-}
-void CMidiPlayer::setChannelPreset(int ch,int b,int p)
-{
- if(!synth)return;
- fluid_synth_bank_select(synth,ch,b);
- fluid_synth_program_change(synth,ch,p);
-}
-//16MSB..LSB1
-void CMidiPlayer::setBit(uint16_t &n, uint16_t bn, uint16_t b)
-{n^=(-b^n)&(1<<bn);}
-void CMidiPlayer::setMute(int ch,bool m)
-{setBit(mute,ch,m?1:0);}
-void CMidiPlayer::setSolo(int ch,bool s)
-{setBit(solo,ch,s?1:0);}
-int CMidiPlayer::getCC(int ch, int id)
-{int ret=0;synth?fluid_synth_get_cc(synth,ch,id,&ret):0;return ret;}
-void CMidiPlayer::setCC(int ch, int id, int val)
-{synth?fluid_synth_cc(synth,ch,id,val):0;}
-void CMidiPlayer::getReverbPara(double *r,double *d,double *w,double *l)
-{
- if(!synth)return;
- *r=fluid_synth_get_reverb_roomsize(synth);
- *d=fluid_synth_get_reverb_damp(synth);
- *w=fluid_synth_get_reverb_width(synth);
- *l=fluid_synth_get_reverb_level(synth);
-}
-void CMidiPlayer::setReverbPara(int e,double r,double d,double w,double l)
-{
- if(!synth)return;
- fluid_synth_set_reverb_on(synth,e);
- fluid_synth_set_reverb(synth,r,d,w,l);
-}
-void CMidiPlayer::getChorusPara(int *fb,double *l,double *r,double *d,int *type)
-{
- if(!synth)return;
- *fb=fluid_synth_get_chorus_nr(synth);
- *l=fluid_synth_get_chorus_level(synth);
- *r=fluid_synth_get_chorus_speed_Hz(synth);
- *d=fluid_synth_get_chorus_depth_ms(synth);
- *type=fluid_synth_get_chorus_type(synth);
-}
-void CMidiPlayer::setChorusPara(int e,int fb,double l,double r,double d,int type)
-{
- if(!synth)return;
- fluid_synth_set_chorus_on(synth,e);
- fluid_synth_set_chorus(synth,fb,l,r,d,type);
-}
-fluid_settings_t* CMidiPlayer::getFluidSettings(){return settings;}
-void CMidiPlayer::pushSoundFont(const char *sf)
-{fluid_synth_sfload(synth,sf,1);}
-int CMidiPlayer::getSFCount()
-{return synth?fluid_synth_sfcount(synth):0;}
-fluid_sfont_t* CMidiPlayer::getSFPtr(int sfid)
-{return synth&&sfid<getSFCount()?fluid_synth_get_sfont(synth,sfid):NULL;}
diff --git a/common/qmpmidiplay.hpp b/common/qmpmidiplay.hpp
deleted file mode 100644
index fafd677..0000000
--- a/common/qmpmidiplay.hpp
+++ /dev/null
@@ -1,137 +0,0 @@
-//sorry for the stupid C-like code...
-#ifndef QMPMIDIPLAY_H
-#define QMPMIDIPLAY_H
-#include <cstring>
-#include <cstdint>
-#include <cstdlib>
-#include <fluidsynth.h>
-struct SEvent
-{
- uint32_t iid,time,p1,p2;
- uint8_t type;
- char *str;
- SEvent(){time=p1=p2=0;type=0;str=NULL;}
- SEvent(uint32_t _iid,uint32_t _t,char _tp,uint32_t _p1,uint32_t _p2,const char* s=NULL)
- {
- iid=_iid;time=_t;type=_tp;
- p1=_p1;p2=_p2;
- if(s){str=new char[strlen(s)+2];strcpy(str,s);}else str=NULL;
- }
-};
-class CMidiFile
-{
- private:
- SEvent *eventList[10000000];
- char *title,*copyright;
- uint32_t eventc,std;//standard 0=? 1=GM 2=GM2 3=GS 4=XG
- uint32_t fmt,trk,divs;
- FILE *f;
- int byteread,valid;
- uint32_t notes,curt,curid;
-
- void error(int fatal,const char* format,...);
- uint32_t readSW();
- uint32_t readDW();
- uint32_t readVL();
- int eventReader();
- void trackChunkReader();
- void headerChunkReader();
- int chunkReader(int hdrXp);
- public:
- CMidiFile(const char* fn);
- ~CMidiFile();
- const SEvent* getEvent(uint32_t id);
- uint32_t getEventCount();
- uint32_t getDivision();
- uint32_t getNoteCount();
- uint32_t getStandard();
- const char* getTitle();
- const char* getCopyright();
- bool isValid();
-};
-class CMidiPlayer
-{
- private:
- CMidiFile *midiFile;
- uint32_t stamps[101];
- uint32_t ccstamps[101][16][135],ccc[16][135];
- //0..127:cc 128:pc 129:cp 130:pb 131:tempo 132:ts 133:ks 134:pbr
- int32_t rpnid,rpnval;
- uint16_t mute,solo;
- double ftime;
- bool sendSysEx,singleInstance,waitvoice;
- fluid_settings_t* settings;
- fluid_synth_t* synth;
- fluid_audio_driver_t* adriver;
- fluid_player_t* player;
- uint32_t ctempo,ctsn,ctsd,dpt,divs,cks;
- //raw tempo, timesig num., timesig den., delay per tick, division, keysig
- //thread control
- uint32_t tceptr,tcpaused,tcstop;
- uint32_t finished,resumed;
-
- void setBit(uint16_t &n,uint16_t bn,uint16_t b);
- void processEvent(const SEvent *e);
- void processEventStub(const SEvent *e);
- void playEvents();
- void fileTimer1Pass();
- void fileTimer2Pass();
- public:
- CMidiPlayer(bool singleInst=false);
- ~CMidiPlayer();
- bool playerLoadFile(const char* fn);
- void playerInit();
- void fluidPreInitialize();
- void fluidInitialize();
- void fluidDeinitialize();
- void playerDeinit();
- void playerThread();
- void playerPanic(bool reset=false);
-
- void rendererLoadFile(const char* ofn);
- void rendererInit(const char *fn);
- void rendererThread();
- void rendererDeinit();
-
- //playing control methods
- uint32_t getStamp(int id);
- uint32_t getTCeptr();
- void setTCeptr(uint32_t ep,uint32_t st);
- uint32_t getTCpaused();
- void setTCpaused(uint32_t ps);
- uint32_t isFinished();
- void setResumed();
- void setWaitVoice(bool wv);
-
- double getFtime();
- void getCurrentTimeSignature(int *n,int *d);
- void getCurrentKeySignature(int *ks);
- uint32_t getFileNoteCount();
- uint32_t getFileStandard();
- double getTempo();
- const char* getTitle();
- const char* getCopyright();
-
- void setGain(double gain);
- void sendSysX(bool send);
- int getPolyphone();
- int getMaxPolyphone();
- void setMaxPolyphone(int p);
-
- void setChannelPreset(int ch,int b,int p);
- void getChannelPreset(int ch,int *b,int *p,char *name);
- void setMute(int ch,bool m);
- void setSolo(int ch,bool s);
- int getCC(int ch,int id);
- void setCC(int ch,int id,int val);
- void getReverbPara(double *r,double *d,double *w,double *l);
- void setReverbPara(int e,double r,double d,double w,double l);
- void getChorusPara(int *fb,double *l,double *r,double *d,int *type);
- void setChorusPara(int e,int fb,double l,double r,double d,int type);
-
- fluid_settings_t* getFluidSettings();
- void pushSoundFont(const char* sf);
- int getSFCount();
- fluid_sfont_t* getSFPtr(int sfid);
-};
-#endif
diff --git a/common/qmpmidiread.cpp b/common/qmpmidiread.cpp
deleted file mode 100644
index fd2e0d9..0000000
--- a/common/qmpmidiread.cpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//CLI Midi file player based on libfluidsynth
-//Midi file reading module
-//Written by Chris Xiong, 2015
-#include <cstdio>
-#include <cstring>
-#include <cstdlib>
-#include <cstdint>
-#include <cstdarg>
-#include <algorithm>
-#include "qmpmidiplay.hpp"
-const char* GM1SysX={"\xF0\x7E\x7F\x09\x01\xF7"};
-const char* GM2SysX={"\xF0\x7E\x7F\x09\x03\xF7"};
-const char* GSSysEx={"\xF0\x41\x10\x42\x12\x40\x00\x7F\x00\x41\xF7"};
-const char* XGSysEx={"\xF0\x43\x10\x4C\x00\x00\x7E\x00\xF7"};
-bool cmp(SEvent *a,SEvent *b){return a->time-b->time?a->time<b->time:a->iid<b->iid;}
-void CMidiFile::error(int fatal,const char* format,...)
-{
- va_list ap;
- va_start(ap,format);vfprintf(stderr,format,ap);va_end(ap);
- fprintf(stderr," at %#lx\n",ftell(f));
- if(fatal)throw 2;
-}
-uint32_t CMidiFile::readSW()
-{
- byteread+=2;
- uint32_t ret=0;
- for(int i=0;i<2;++i){ret<<=8;ret|=((uint32_t)fgetc(f))&0xFF;}
- return ret;
-}
-uint32_t CMidiFile::readDW()
-{
- byteread+=4;
- uint32_t ret=0;
- for(int i=0;i<4;++i){ret<<=8;ret|=((uint32_t)fgetc(f))&0xFF;}
- return ret;
-}
-uint32_t CMidiFile::readVL()
-{
- uint32_t ret=0,t,c=0;
- do
- {
- t=fgetc(f);
- if(++c>4)error(1,"E: Variable length type overflow.");
- ret<<=7;ret|=(t&0x7F);
- }while(t&0x80);
- byteread+=c;
- return ret;
-}
-int CMidiFile::eventReader()//returns 0 if End of Track encountered
-{
- uint32_t delta=readVL();curt+=delta;
- char type=fgetc(f);++byteread;uint32_t p1,p2;
- static char lasttype;
-retry:
- switch(type&0xF0)
- {
- case 0x80://Note Off
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0x90://Note On
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- if(p2)
- {
- ++notes;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- }
- else
- eventList[eventc++]=new SEvent(curid,curt,(type&0x0F)|0x80,p1,p2);
- break;
- case 0xA0://Note Aftertouch
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0xB0://Controller Change
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0xC0://Patch Change
- p1=fgetc(f);++byteread;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,0);
- break;
- case 0xD0://Channel Aftertouch
- p1=fgetc(f);++byteread;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,0);
- break;
- case 0xE0://Pitch wheel
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,(p1|(p2<<7))&0x3FFF,0);
- break;
- case 0xF0:
- if((type&0x0F)==0x0F)//Meta Event
- {
- char metatype=fgetc(f);++byteread;
- switch(metatype)
- {
- case 0x00://Sequence Number
- fgetc(f);fgetc(f);fgetc(f);
- byteread+=3;
- break;
- case 0x20://Channel Prefix
- fgetc(f);fgetc(f);byteread+=2;
- break;
- case 0x2F://End of Track
- fgetc(f);++byteread;
- return 0;
- break;
- case 0x51://Set Tempo
- p1=readDW();p1&=0x00FFFFFF;
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x54://SMTPE offset, not handled.
- fgetc(f);fgetc(f);fgetc(f);
- fgetc(f);fgetc(f);fgetc(f);
- byteread+=6;
- break;
- case 0x58://Time signature
- fgetc(f);++byteread;
- p1=readDW();
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x59://Key signature
- fgetc(f);++byteread;
- p1=readSW();
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x01:case 0x02:case 0x03:
- case 0x04:case 0x05:case 0x06:
- case 0x07:case 0x7F:default://text-like meta
- {
- uint32_t len=readVL(),c;char* str=NULL;
- if(len<=1024&&len>0)str=new char[len+8];
- for(c=0;c<len;++c)
- {
- ++byteread;if(str)str[c]=fgetc(f);else fgetc(f);
- }
- if(str)str[c]='\0';eventList[eventc++]=new SEvent(curid,curt,type,metatype,0,str);
- if(str&&metatype==0x03&&!title)
- {
- title=new char[len+8];
- strcpy(title,str);
- }
- if(str&&metatype==0x02&&!copyright)
- {
- copyright=new char[len+8];
- strcpy(copyright,str);
- }
- if(len<=1024&&len>0)delete[] str;
- }
- }
- }
- else if((type&0x0F)==0x00||(type&0x0F)==0x07)//SysEx
- {
- uint32_t len=readVL(),c;char* str=NULL;
- str=new char[len+8];
- if((type&0x0F)==0x00)
- {
- str[0]=0xF0;++len;
- for(c=1;c<len;++c){++byteread;str[c]=fgetc(f);}
- }
- else for(c=0;c<len;++c){++byteread;str[c]=fgetc(f);}
- eventList[eventc++]=new SEvent(curid,curt,type,len,0,str);
- if(!strcmp(str,GM1SysX))std=1;
- if(!strcmp(str,GM2SysX))std=2;
- if(!strcmp(str,GSSysEx))std=3;
- if(!strcmp(str,XGSysEx))std=4;
- }
- else error(0,"W: Unknown event type %#x",type);
- break;
- default:
- fseek(f,-1,SEEK_CUR);--byteread;type=lasttype;goto retry;
- }
- lasttype=type;++curid;
- return 1;
-}
-void CMidiFile::trackChunkReader()
-{
- int chnklen=readDW();byteread=0;curt=0;curid=0;
- while(/*byteread<chnklen&&*/eventReader());
- if(byteread<chnklen)
- {
- error(0,"W: Extra bytes after EOT event.");
- while(byteread<chnklen){fgetc(f);++byteread;}
- }
- /*if(byteread>chnklen)
- {
- error(1,"E: Read past end of track.");
- }*/
-}
-void CMidiFile::headerChunkReader()
-{
- int chnklen=readDW();byteread=0;
- if(chnklen<6)error(1,"E: Header chunk too short.");
- if(chnklen>6)error(0,"W: Header chunk length longer than expected. Ignoring extra bytes.");
- fmt=readSW();trk=readSW();divs=readSW();
- if(divs&0x8000)error(1,"E: SMTPE format is not supported.");
- for(;byteread<chnklen;++byteread){fgetc(f);}
-}
-int CMidiFile::chunkReader(int hdrXp)
-{
- char hdr[6];
- if(!fgets(hdr,5,f))error(1,"E: Unexpected EOF.");
- if(hdrXp)
- if(strncmp(hdr,"MThd",4)){error(1,"E: Wrong MIDI header.");throw;}
- else return headerChunkReader(),0;
- else
- if(strncmp(hdr,"MTrk",4))
- {
- error(0,"W: Wrong track chunk header. Ignoring the whole chunk.");
- for(int chnklen=readDW();chnklen>0;--chnklen)fgetc(f);return 0;
- }
- else return trackChunkReader(),1;
-}
-CMidiFile::CMidiFile(const char* fn)
-{
- title=copyright=NULL;notes=eventc=0;std=0;valid=1;
- try
- {
- if(!(f=fopen(fn,"rb")))throw (fprintf(stderr,"E: file %s doesn't exist!\n",fn),2);
- chunkReader(1);
- for(uint32_t i=0;i<trk;i+=chunkReader(0));
- fclose(f);
- std::sort(eventList,eventList+eventc,cmp);
- }
- catch(int){fprintf(stderr,"E: %s is not a supported file.\n",fn);valid=0;}
-}
-CMidiFile::~CMidiFile()
-{
- for(uint32_t i=0;i<eventc;++i)delete eventList[i];
- if(title)delete[] title;if(copyright)delete[] copyright;
-}
-const SEvent* CMidiFile::getEvent(uint32_t id){return id<eventc?eventList[id]:NULL;}
-uint32_t CMidiFile::getEventCount(){return eventc;}
-uint32_t CMidiFile::getDivision(){return divs;}
-uint32_t CMidiFile::getNoteCount(){return notes;}
-uint32_t CMidiFile::getStandard(){return std;}
-bool CMidiFile::isValid(){return valid;}
-const char* CMidiFile::getTitle(){return title;}
-const char* CMidiFile::getCopyright(){return copyright;}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 14:25:06 +0000