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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* 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 for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef SOUND_MODS_INFOGRAMES_H
#define SOUND_MODS_INFOGRAMES_H
#include "sound/mods/paula.h"
#include "common/stream.h"
namespace Audio {
/** A player for the Infogrames/RobHubbard2 format */
class Infogrames : public Paula {
public:
class Instruments {
public:
Instruments();
template<typename T> Instruments(T ins) {
init();
bool result = load(ins);
assert(result);
}
~Instruments();
bool load(Common::SeekableReadStream &ins);
bool load(const char *ins);
void unload(void);
uint8 getCount(void) const { return _count; }
protected:
struct Sample {
int8 *data;
int8 *dataRepeat;
uint32 length;
uint32 lengthRepeat;
} _samples[32];
uint8 _count;
int8 *_sampleData;
void init();
friend class Infogrames;
};
Infogrames(Instruments &ins, bool stereo = false, int rate = 44100,
int interruptFreq = 0);
~Infogrames();
Instruments *getInstruments(void) const { return _instruments; }
bool getRepeating(void) const { return _repCount != 0; }
void setRepeating (int32 repCount) { _repCount = repCount; }
bool load(Common::SeekableReadStream &dum);
bool load(const char *dum);
void unload(void);
void restart(void) {
if (_data) {
// Use the mutex here to ensure we do not call init()
// while data is being read by the mixer thread.
_mutex.lock();
init();
startPlay();
_mutex.unlock();
}
}
protected:
Instruments *_instruments;
static const uint8 tickCount[];
static const uint16 periods[];
byte *_data;
int32 _repCount;
byte *_subSong;
byte *_cmdBlocks;
byte *_volSlideBlocks;
byte *_periodSlideBlocks;
uint8 _speedCounter;
uint8 _speed;
uint16 _volume;
int16 _period;
uint8 _sample;
struct Slide {
byte *data;
int8 amount;
uint8 dataOffset;
int16 finetuneNeg;
int16 finetunePos;
uint8 curDelay1;
uint8 curDelay2;
uint8 flags; // 0: Apply finetune modifier, 2: Don't slide, 7: Continuous
};
struct Channel {
byte *cmdBlockIndices;
byte *cmdBlocks;
byte *cmds;
uint8 ticks;
uint8 tickCount;
Slide volSlide;
Slide periodSlide;
int16 period;
int8 periodMod;
uint8 flags; // 0: Need init, 5: Loop cmdBlocks, 6: Ignore channel
} _chn[4];
void init(void);
void reset(void);
void getNextSample(Channel &chn);
int16 tune(Slide &slide, int16 start) const;
virtual void interrupt(void);
};
} // End of namespace Audio
#endif
|
