aboutsummaryrefslogtreecommitdiff
path: root/qmpmidiplay.cpp
blob: b676c99541216c9a32c4d869bc6cebb4921e6e44 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
#include <cstdio>
#include <chrono>
#include <thread>
#include <fluidsynth.h>
#include "qmpmidiplay.hpp"
void CMidiPlayer::fluidInitialize(const char* sf)
{
	settings=new_fluid_settings();
	fluid_settings_setstr(settings,"audio.driver","pulseaudio");
	fluid_settings_setint(settings,"synth.cpu-cores",4);
	fluid_settings_setint(settings,"synth.min-note-length",0);
	fluid_settings_setint(settings,"synth.polyphony",256);
	synth=new_fluid_synth(settings);
	adriver=new_fluid_audio_driver(settings,synth);
	fluid_synth_sfload(synth,sf,1);
}
void CMidiPlayer::fluidDeinitialize()
{
	if(!synth||!adriver||!settings)return;
	delete_fluid_audio_driver(adriver);
	delete_fluid_synth(synth);
	delete_fluid_settings(settings);
	synth=NULL;settings=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
			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:
					break;
					case 0x59:
					break;
					case 0x01:case 0x02:case 0x03:
					case 0x04:case 0x05:case 0x06:
					case 0x07:
						if(e->str)puts(e->str);
					break;
				}
			}
		break;
	}
}
void CMidiPlayer::processEventStub(const SEvent *e)
{
	switch(e->type&0xF0)
	{
		case 0xB0://CC
			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;
				}
			}
		break;
	}
}
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&&tceptr<midiFile->getEventCount()&&ct==midiFile->getEvent(tceptr)->time)
			processEvent(midiFile->getEvent(tceptr++));
		if(tcstop||tceptr>=midiFile->getEventCount())break;
		if(resumed)resumed=false;
		else
		std::this_thread::sleep_for(std::chrono::nanoseconds(midiFile->getEvent(tceptr)->time-ct)*dpt);
		ct=midiFile->getEvent(tceptr)->time;
	}
	while(!tcstop&&synth&&fluid_synth_get_active_voice_count(synth)>0)std::this_thread::sleep_for(std::chrono::microseconds(100));
	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));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;
	}
	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<132;++j)
				ccstamps[c][i][j]=ccc[i][j];
			stamps[c++]=eptr;
			if(c>100)throw;
		}
		ct=midiFile->getEvent(eptr)->time;
	}
	while(c<101)
	{
		for(int i=0;i<16;++i)for(int j=0;j<132;++j)
			ccstamps[c][i][j]=ccc[i][j];
		stamps[c++]=midiFile->getEventCount();
	}
}
CMidiPlayer::CMidiPlayer()
{
	midiFile=NULL;resumed=false;
	settings=NULL;synth=NULL;adriver=NULL;
}
void CMidiPlayer::playerPanic()
{
	for(int i=0;i<16;++i)fluid_synth_all_notes_off(synth,i);
	//for(int i=0;i<16;++i)for(int j=0;j<128;++j)fluid_synth_noteoff(synth,i,j);
}
void CMidiPlayer::playerLoadFile(const char* fn)
{
	midiFile=new CMidiFile(fn);
	divs=midiFile->getDivision();
	fileTimer1Pass();
	fileTimer2Pass();
}
void CMidiPlayer::playerInit()
{
	ctempo=0x7A120;ctsn=4;ctsd=2;dpt=ctempo*1000/divs;
	tceptr=0;tcstop=0;tcpaused=0;finished=0;mute=solo=0;
	fluidInitialize("/media/Files/FluidR3_Ext.sf2");
}
void CMidiPlayer::playerDeinit()
{
	tceptr=0;tcstop=1;tcpaused=0;
	fluidDeinitialize();
}
void CMidiPlayer::playerThread()
{
	playEvents();
}
uint32_t CMidiPlayer::getStamp(int id){return stamps[id];}
uint32_t CMidiPlayer::getTCeptr(){return tceptr;}
void CMidiPlayer::setTCeptr(uint32_t ep,uint32_t st)
{
	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];
	}
}
double CMidiPlayer::getFtime(){return ftime;}
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::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;
	fluid_synth_channel_info_t info;
	fluid_synth_get_channel_info(synth,ch,&info);
	*b=info.bank;*p=info.program;
	strcpy(name,info.name);
}
//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);
}