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
248
249
250
|
/* 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.
*
* $URL$
* $Id$
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_FLUIDSYNTH_H
#include <fluidsynth.h>
#include "../softseq.h"
#include "../sequencer.h"
#include "../device.h"
#include "resource.h"
namespace Sci {
static sfx_sequencer_t *gmseq;
static fluid_settings_t* settings;
static fluid_synth_t* synth;
static uint8 status;
static char *soundfont = "/etc/midi/8MBGMSFX.SF2";
static int rpn[16];
#define SAMPLE_RATE 44100
#define CHANNELS SFX_PCM_STEREO_LR
/* MIDI writer */
static int
fluidsynth_midi_init(struct _midi_writer *self) {
return SFX_OK;
}
static int
fluidsynth_midi_set_option(struct _midi_writer *self, char *name, char *value) {
return SFX_ERROR;
}
static int
fluidsynth_midi_write(struct _midi_writer *self, unsigned char *buf, int len) {
if (buf[0] == 0xf0)
sciprintf("FluidSynth: Skipping sysex message.\n");
else if (len == 2) {
uint8 command, channel;
command = buf[0] & 0xf0;
channel = buf[0] & 0x0f;
switch (command) {
case 0xc0:
fluid_synth_program_change(synth, channel, buf[1]);
break;
default:
printf("FluidSynth: MIDI command [%02x %02x] not supported\n", buf[0], buf[1]);
}
} else if (len == 3) {
uint8 command, channel;
command = buf[0] & 0xf0;
channel = buf[0] & 0x0f;
switch (command) {
case 0x80:
fluid_synth_noteoff(synth, channel, buf[1]);
break;
case 0x90:
fluid_synth_noteon(synth, channel, buf[1], buf[2]);
break;
case 0xb0:
switch (buf[1]) {
case 0x06:
/* Data Entry Slider - course */
if (rpn[channel] == 0)
fluid_synth_pitch_wheel_sens(synth, channel, buf[2]);
else
sciprintf("FluidSynth: RPN %i not supported\n", rpn[channel]);
case 0x64:
/* Registered Parameter Number (RPN) - fine */
rpn[channel] &= ~0x7f;
rpn[channel] |= buf[2] & 0x7f;
break;
case 0x65:
/* Registered Parameter Number (RPN) - course */
rpn[channel] &= ~0x3f80;
rpn[channel] |= (buf[2] & 0x7f) << 7;
break;
default:
fluid_synth_cc(synth, channel, buf[1], buf[2]);
}
break;
case 0xe0:
fluid_synth_pitch_bend(synth, channel, (buf[2] << 7) | buf[1]);
break;
default:
sciprintf("FluidSynth: MIDI command [%02x %02x %02x] not supported\n", buf[0], buf[1], buf[2]);
}
} else
sciprintf("FluidSynth: Skipping invalid message of %i bytes.\n", len);
return SFX_OK;
}
static void
fluidsynth_midi_delay(struct _midi_writer *self, int ticks) {
}
static void
fluidsynth_midi_reset_timer(struct _midi_writer *self) {
}
static void
fluidsynth_midi_close(struct _midi_writer *self) {
}
static midi_writer_t midi_writer_fluidsynth = {
"fluidsynth",
fluidsynth_midi_init,
fluidsynth_midi_set_option,
fluidsynth_midi_write,
fluidsynth_midi_delay,
NULL,
fluidsynth_midi_reset_timer,
fluidsynth_midi_close
};
/* Software sequencer */
static void
fluidsynth_poll(sfx_softseq_t *self, byte *dest, int count) {
fluid_synth_write_s16(synth, count, dest, 0, 2, dest + 2, 0, 2);
}
static int
fluidsynth_init(sfx_softseq_t *self, byte *data_ptr, int data_length,
byte *data2_ptr, int data2_length) {
int sfont_id;
double min, max;
if (0) {
sciprintf("FluidSynth ERROR: Mono sound output not supported.\n");
return SFX_ERROR;
}
gmseq = sfx_find_sequencer("General MIDI");
if (!gmseq) {
sciprintf("FluidSynth ERROR: Unable to find General MIDI sequencer.\n");
return SFX_ERROR;
}
settings = new_fluid_settings();
fluid_settings_getnum_range(settings, "synth.sample-rate", &min, &max);
if (SAMPLE_RATE < min || SAMPLE_RATE > max) {
sciprintf("FluidSynth ERROR: Sample rate '%i' not supported. Valid "
"range is (%i-%i).\n", SAMPLE_RATE, (int) min, (int) max);
delete_fluid_settings(settings);
return SFX_ERROR;
}
fluid_settings_setnum(settings, "synth.sample-rate", SAMPLE_RATE);
fluid_settings_setnum(settings, "synth.gain", 0.5f);
synth = new_fluid_synth(settings);
if ((sfont_id = fluid_synth_sfload(synth, soundfont, 1)) < 0) {
delete_fluid_synth(synth);
delete_fluid_settings(settings);
return SFX_ERROR;
}
gmseq->open(data_length, data_ptr, data2_length, data2_ptr,
&midi_writer_fluidsynth);
return SFX_OK;
}
static void
fluidsynth_exit(sfx_softseq_t *self) {
delete_fluid_synth(synth);
delete_fluid_settings(settings);
}
static void
fluidsynth_allstop(sfx_softseq_t *self) {
if (gmseq->allstop)
gmseq->allstop();
}
static void
fluidsynth_volume(sfx_softseq_t *self, int volume) {
if (gmseq->volume)
gmseq->volume(volume);
}
static int
fluidsynth_set_option(sfx_softseq_t *self, const char *name, const char *value) {
return SFX_ERROR;
}
static void
fluidsynth_event(sfx_softseq_t *self, byte cmd, int argc, byte *argv) {
gmseq->event(cmd, argc, argv);
}
sfx_softseq_t sfx_softseq_fluidsynth = {
"fluidsynth",
"0.1",
fluidsynth_set_option,
fluidsynth_init,
fluidsynth_exit,
fluidsynth_volume,
fluidsynth_event,
fluidsynth_poll,
fluidsynth_allstop,
NULL,
004, /* patch.004 */
001, /* patch.001 */
0x01, /* playflag */
1, /* do play channel 9 */
32, /* Max polypgony */
{SAMPLE_RATE, CHANNELS, SFX_PCM_FORMAT_S16_NATIVE}
};
} // End of namespace Sci
#endif /* HAVE_FLUIDSYNTH_H */
|
