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
|
/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.
*/
#include "config.h"
#include "MikmodDecoderPlugin.hxx"
#include "DecoderAPI.hxx"
#include "tag/TagHandler.hxx"
#include "system/FatalError.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"
#include <mikmod.h>
#include <assert.h>
static constexpr Domain mikmod_domain("mikmod");
/* this is largely copied from alsaplayer */
static constexpr size_t MIKMOD_FRAME_SIZE = 4096;
static BOOL
mikmod_mpd_init(void)
{
return VC_Init();
}
static void
mikmod_mpd_exit(void)
{
VC_Exit();
}
static void
mikmod_mpd_update(void)
{
}
static BOOL
mikmod_mpd_is_present(void)
{
return true;
}
static char drv_name[] = PACKAGE_NAME;
static char drv_version[] = VERSION;
#if (LIBMIKMOD_VERSION > 0x030106)
static char drv_alias[] = PACKAGE;
#endif
static MDRIVER drv_mpd = {
nullptr,
drv_name,
drv_version,
0,
255,
#if (LIBMIKMOD_VERSION > 0x030106)
drv_alias,
#if (LIBMIKMOD_VERSION >= 0x030200)
nullptr, /* CmdLineHelp */
#endif
nullptr, /* CommandLine */
#endif
mikmod_mpd_is_present,
VC_SampleLoad,
VC_SampleUnload,
VC_SampleSpace,
VC_SampleLength,
mikmod_mpd_init,
mikmod_mpd_exit,
nullptr,
VC_SetNumVoices,
VC_PlayStart,
VC_PlayStop,
mikmod_mpd_update,
nullptr,
VC_VoiceSetVolume,
VC_VoiceGetVolume,
VC_VoiceSetFrequency,
VC_VoiceGetFrequency,
VC_VoiceSetPanning,
VC_VoiceGetPanning,
VC_VoicePlay,
VC_VoiceStop,
VC_VoiceStopped,
VC_VoiceGetPosition,
VC_VoiceRealVolume
};
static bool mikmod_loop;
static unsigned mikmod_sample_rate;
static bool
mikmod_decoder_init(const config_param ¶m)
{
static char params[] = "";
mikmod_loop = param.GetBlockValue("loop", false);
mikmod_sample_rate = param.GetBlockValue("sample_rate", 44100u);
if (!audio_valid_sample_rate(mikmod_sample_rate))
FormatFatalError("Invalid sample rate in line %d: %u",
param.line, mikmod_sample_rate);
md_device = 0;
md_reverb = 0;
MikMod_RegisterDriver(&drv_mpd);
MikMod_RegisterAllLoaders();
md_pansep = 64;
md_mixfreq = mikmod_sample_rate;
md_mode = (DMODE_SOFT_MUSIC | DMODE_INTERP | DMODE_STEREO |
DMODE_16BITS);
if (MikMod_Init(params)) {
FormatError(mikmod_domain,
"Could not init MikMod: %s",
MikMod_strerror(MikMod_errno));
return false;
}
return true;
}
static void
mikmod_decoder_finish(void)
{
MikMod_Exit();
}
static void
mikmod_decoder_file_decode(Decoder &decoder, const char *path_fs)
{
/* deconstify the path because libmikmod wants a non-const
string pointer */
char *const path2 = const_cast<char *>(path_fs);
MODULE *handle;
int ret;
SBYTE buffer[MIKMOD_FRAME_SIZE];
handle = Player_Load(path2, 128, 0);
if (handle == nullptr) {
FormatError(mikmod_domain,
"failed to open mod: %s", path_fs);
return;
}
handle->loop = mikmod_loop;
const AudioFormat audio_format(mikmod_sample_rate, SampleFormat::S16, 2);
assert(audio_format.IsValid());
decoder_initialized(decoder, audio_format, false, 0);
Player_Start(handle);
DecoderCommand cmd = DecoderCommand::NONE;
while (cmd == DecoderCommand::NONE && Player_Active()) {
ret = VC_WriteBytes(buffer, sizeof(buffer));
cmd = decoder_data(decoder, nullptr, buffer, ret, 0);
}
Player_Stop();
Player_Free(handle);
}
static bool
mikmod_decoder_scan_file(const char *path_fs,
const struct tag_handler *handler, void *handler_ctx)
{
/* deconstify the path because libmikmod wants a non-const
string pointer */
char *const path2 = const_cast<char *>(path_fs);
MODULE *handle = Player_Load(path2, 128, 0);
if (handle == nullptr) {
FormatDebug(mikmod_domain,
"Failed to open file: %s", path_fs);
return false;
}
Player_Free(handle);
char *title = Player_LoadTitle(path2);
if (title != nullptr) {
tag_handler_invoke_tag(handler, handler_ctx,
TAG_TITLE, title);
#if (LIBMIKMOD_VERSION >= 0x030200)
MikMod_free(title);
#else
free(title);
#endif
}
return true;
}
static const char *const mikmod_decoder_suffixes[] = {
"amf",
"dsm",
"far",
"gdm",
"imf",
"it",
"med",
"mod",
"mtm",
"s3m",
"stm",
"stx",
"ult",
"uni",
"xm",
nullptr
};
const struct DecoderPlugin mikmod_decoder_plugin = {
"mikmod",
mikmod_decoder_init,
mikmod_decoder_finish,
nullptr,
mikmod_decoder_file_decode,
mikmod_decoder_scan_file,
nullptr,
nullptr,
mikmod_decoder_suffixes,
nullptr,
};
|
