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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2014 Franklin Wei, Benjamin Brown
* Copyright (C) 2004 Gregory Montoir
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "sfxplayer.h"
#include "mixer.h"
#include "resource.h"
#include "serializer.h"
#include "sys.h"
void player_create(struct SfxPlayer* sfx, struct Mixer *mix, struct Resource *res, struct System *stub)
{
sfx->mixer = mix;
sfx->res = res;
sfx->sys = stub;
sfx->_delay = 0;
sfx->_resNum = 0;
}
void player_init(struct SfxPlayer* sfx) {
debug(DBG_SND, "sys is 0x%08x", sfx->sys);
sfx->_mutex = sys_createMutex(sfx->sys);
}
void player_free(struct SfxPlayer* sfx) {
player_stop(sfx);
sys_destroyMutex(sfx->sys, sfx->_mutex);
}
void player_setEventsDelay(struct SfxPlayer* sfx, uint16_t delay) {
debug(DBG_SND, "player_setEventsDelay(%d)", delay);
struct MutexStack_t ms;
MutexStack(&ms, sfx->sys, sfx->_mutex);
sfx->_delay = delay * 60 / 7050;
MutexStack_destroy(&ms);
}
void player_loadSfxModule(struct SfxPlayer* sfx, uint16_t resNum, uint16_t delay, uint8_t pos) {
debug(DBG_SND, "player_loadSfxModule(0x%X, %d, %d)", resNum, delay, pos);
struct MutexStack_t ms;
MutexStack(&ms, sfx->sys, sfx->_mutex);
struct MemEntry *me = &sfx->res->_memList[resNum];
if (me->state == MEMENTRY_STATE_LOADED && me->type == RT_MUSIC) {
sfx->_resNum = resNum;
rb->memset(&sfx->_sfxMod, 0, sizeof(struct SfxModule));
sfx->_sfxMod.curOrder = pos;
sfx->_sfxMod.numOrder = READ_BE_UINT16(me->bufPtr + 0x3E);
debug(DBG_SND, "player_loadSfxModule() curOrder = 0x%X numOrder = 0x%X", sfx->_sfxMod.curOrder, sfx->_sfxMod.numOrder);
for (int i = 0; i < 0x80; ++i) {
sfx->_sfxMod.orderTable[i] = *(me->bufPtr + 0x40 + i);
}
if (delay == 0) {
sfx->_delay = READ_BE_UINT16(me->bufPtr);
} else {
sfx->_delay = delay;
}
sfx->_delay = sfx->_delay * 60 / 7050;
sfx->_sfxMod.data = me->bufPtr + 0xC0;
debug(DBG_SND, "player_loadSfxModule() eventDelay = %d ms", sfx->_delay);
player_prepareInstruments(sfx, me->bufPtr + 2);
} else {
warning("player_loadSfxModule() ec=0x%X", 0xF8);
}
MutexStack_destroy(&ms);
}
void player_prepareInstruments(struct SfxPlayer* sfx, const uint8_t *p) {
rb->memset(sfx->_sfxMod.samples, 0, sizeof(sfx->_sfxMod.samples));
for (int i = 0; i < 15; ++i) {
struct SfxInstrument *ins = &sfx->_sfxMod.samples[i];
uint16_t resNum = READ_BE_UINT16(p);
p += 2;
if (resNum != 0) {
ins->volume = READ_BE_UINT16(p);
struct MemEntry *me = &sfx->res->_memList[resNum];
if (me->state == MEMENTRY_STATE_LOADED && me->type == RT_SOUND) {
ins->data = me->bufPtr;
rb->memset(ins->data + 8, 0, 4);
debug(DBG_SND, "Loaded instrument 0x%X n=%d volume=%d", resNum, i, ins->volume);
} else {
error("Error loading instrument 0x%X", resNum);
}
}
p += 2; /* skip volume */
}
}
void player_start(struct SfxPlayer* sfx) {
debug(DBG_SND, "player_start()");
struct MutexStack_t ms;
MutexStack(&ms, sfx->sys, sfx->_mutex);
sfx->_sfxMod.curPos = 0;
sfx->_timerId = sys_addTimer(sfx->sys, sfx->_delay, player_eventsCallback, sfx);
MutexStack_destroy(&ms);
}
void player_stop(struct SfxPlayer* sfx) {
debug(DBG_SND, "player_stop()");
struct MutexStack_t ms;
MutexStack(&ms, sfx->sys, sfx->_mutex);
if (sfx->_resNum != 0) {
sfx->_resNum = 0;
sys_removeTimer(sfx->sys, sfx->_timerId);
}
MutexStack_destroy(&ms);
}
void player_handleEvents(struct SfxPlayer* sfx) {
struct MutexStack_t ms;
MutexStack(&ms, sfx->sys, sfx->_mutex);
uint8_t order = sfx->_sfxMod.orderTable[sfx->_sfxMod.curOrder];
const uint8_t *patternData = sfx->_sfxMod.data + sfx->_sfxMod.curPos + order * 1024;
for (uint8_t ch = 0; ch < 4; ++ch) {
player_handlePattern(sfx, ch, patternData);
patternData += 4;
}
sfx->_sfxMod.curPos += 4 * 4;
debug(DBG_SND, "player_handleEvents() order = 0x%X curPos = 0x%X", order, sfx->_sfxMod.curPos);
if (sfx->_sfxMod.curPos >= 1024) {
sfx->_sfxMod.curPos = 0;
order = sfx->_sfxMod.curOrder + 1;
if (order == sfx->_sfxMod.numOrder) {
sfx->_resNum = 0;
sys_removeTimer(sfx->sys, sfx->_timerId);
mixer_stopAll(sfx->mixer);
}
sfx->_sfxMod.curOrder = order;
}
MutexStack_destroy(&ms);
}
void player_handlePattern(struct SfxPlayer* sfx, uint8_t channel, const uint8_t *data) {
struct SfxPattern pat;
rb->memset(&pat, 0, sizeof(struct SfxPattern));
pat.note_1 = READ_BE_UINT16(data + 0);
pat.note_2 = READ_BE_UINT16(data + 2);
if (pat.note_1 != 0xFFFD) {
uint16_t sample = (pat.note_2 & 0xF000) >> 12;
if (sample != 0) {
uint8_t *ptr = sfx->_sfxMod.samples[sample - 1].data;
if (ptr != 0) {
debug(DBG_SND, "player_handlePattern() preparing sample %d", sample);
pat.sampleVolume = sfx->_sfxMod.samples[sample - 1].volume;
pat.sampleStart = 8;
pat.sampleBuffer = ptr;
pat.sampleLen = READ_BE_UINT16(ptr) * 2;
uint16_t loopLen = READ_BE_UINT16(ptr + 2) * 2;
if (loopLen != 0) {
pat.loopPos = pat.sampleLen;
pat.loopData = ptr;
pat.loopLen = loopLen;
} else {
pat.loopPos = 0;
pat.loopData = 0;
pat.loopLen = 0;
}
int16_t m = pat.sampleVolume;
uint8_t effect = (pat.note_2 & 0x0F00) >> 8;
if (effect == 5) { /* volume up */
uint8_t volume = (pat.note_2 & 0xFF);
m += volume;
if (m > 0x3F) {
m = 0x3F;
}
} else if (effect == 6) { /* volume down */
uint8_t volume = (pat.note_2 & 0xFF);
m -= volume;
if (m < 0) {
m = 0;
}
}
mixer_setChannelVolume(sfx->mixer, channel, m);
pat.sampleVolume = m;
}
}
}
if (pat.note_1 == 0xFFFD) {
debug(DBG_SND, "player_handlePattern() _scriptVars[0xF4] = 0x%X", pat.note_2);
*sfx->_markVar = pat.note_2;
} else if (pat.note_1 != 0) {
if (pat.note_1 == 0xFFFE) {
mixer_stopChannel(sfx->mixer, channel);
} else if (pat.sampleBuffer != 0) {
struct MixerChunk mc;
rb->memset(&mc, 0, sizeof(mc));
mc.data = pat.sampleBuffer + pat.sampleStart;
mc.len = pat.sampleLen;
mc.loopPos = pat.loopPos;
mc.loopLen = pat.loopLen;
/* convert amiga period value to hz */
uint16_t freq = 7159092 / (pat.note_1 * 2);
debug(DBG_SND, "player_handlePattern() adding sample freq = 0x%X", freq);
mixer_playChannel(sfx->mixer, channel, &mc, freq, pat.sampleVolume);
}
}
}
uint32_t player_eventsCallback(uint32_t interval, void *param) {
(void) interval;
debug(DBG_SND, "player_eventsCallback with interval %d ms and param 0x%08x", interval, param);
struct SfxPlayer *p = (struct SfxPlayer *)param;
player_handleEvents(p);
return p->_delay;
}
void player_saveOrLoad(struct SfxPlayer* sfx, struct Serializer *ser) {
sys_lockMutex(sfx->sys, sfx->_mutex);
struct Entry entries[] = {
SE_INT(&sfx->_delay, SES_INT8, VER(2)),
SE_INT(&sfx->_resNum, SES_INT16, VER(2)),
SE_INT(&sfx->_sfxMod.curPos, SES_INT16, VER(2)),
SE_INT(&sfx->_sfxMod.curOrder, SES_INT8, VER(2)),
SE_END()
};
ser_saveOrLoadEntries(ser, entries);
sys_unlockMutex(sfx->sys, sfx->_mutex);
if (ser->_mode == SM_LOAD && sfx->_resNum != 0) {
uint16_t delay = sfx->_delay;
player_loadSfxModule(sfx, sfx->_resNum, 0, sfx->_sfxMod.curOrder);
sfx->_delay = delay;
sfx->_timerId = sys_addTimer(sfx->sys, sfx->_delay, player_eventsCallback, sfx);
}
}
|
