From cf7eafca1fbc9aae495d7b7d7e1fb4bc92e6819f Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Wed, 6 Apr 2016 09:46:52 +0800
Subject: Sometimes Naïve!
MIME-Version: 1.0
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---
 common/qmpmidiplay.cpp | 404 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 404 insertions(+)
 create mode 100644 common/qmpmidiplay.cpp

(limited to 'common/qmpmidiplay.cpp')

diff --git a/common/qmpmidiplay.cpp b/common/qmpmidiplay.cpp
new file mode 100644
index 0000000..6f69e33
--- /dev/null
+++ b/common/qmpmidiplay.cpp
@@ -0,0 +1,404 @@
+#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;}
-- 
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