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
|
/* 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.
*
* $URL$
* $Id$
*
*/
#include "sci/tools.h"
#include "sci/sfx/core.h"
#include "sci/sfx/iterator.h"
namespace Sci {
#define debug_stream stderr
song_t *song_new(song_handle_t handle, SongIterator *it, int priority) {
song_t *retval;
retval = (song_t*) malloc(sizeof(song_t));
#ifdef SATISFY_PURIFY
memset(retval, 0, sizeof(song_t));
#endif
retval->handle = handle;
retval->priority = priority;
retval->next = NULL;
retval->_delay = 0;
retval->_wakeupTime = Audio::Timestamp();
retval->it = it;
retval->status = SOUND_STATUS_STOPPED;
retval->next_playing = NULL;
retval->next_stopping = NULL;
retval->restore_behavior = RESTORE_BEHAVIOR_CONTINUE;
retval->restore_time = 0;
return retval;
}
void song_lib_add(const songlib_t &songlib, song_t *song) {
song_t **seeker = NULL;
int pri = song->priority;
if (NULL == song) {
sciprintf("song_lib_add(): NULL passed for song\n");
return;
}
if (*(songlib.lib) == NULL) {
*(songlib.lib) = song;
song->next = NULL;
return;
}
seeker = (songlib.lib);
while (*seeker && ((*seeker)->priority > pri))
seeker = &((*seeker)->next);
song->next = *seeker;
*seeker = song;
}
static void _songfree_chain(song_t *song) {
/* Recursively free a chain of songs */
if (song) {
_songfree_chain(song->next);
delete song->it;
song->it = NULL;
free(song);
}
}
void song_lib_init(songlib_t *songlib) {
songlib->lib = &(songlib->_s);
songlib->_s = NULL;
}
void song_lib_free(const songlib_t &songlib) {
_songfree_chain(*(songlib.lib));
*(songlib.lib) = NULL;
}
song_t *song_lib_find(const songlib_t &songlib, song_handle_t handle) {
song_t *seeker = *(songlib.lib);
while (seeker) {
if (seeker->handle == handle)
break;
seeker = seeker->next;
}
return seeker;
}
song_t *song_lib_find_next_active(const songlib_t &songlib, song_t *other) {
song_t *seeker = other ? other->next : *(songlib.lib);
while (seeker) {
if ((seeker->status == SOUND_STATUS_WAITING) ||
(seeker->status == SOUND_STATUS_PLAYING))
break;
seeker = seeker->next;
}
/* Only return songs that have equal priority */
if (other && seeker && other->priority > seeker->priority)
return NULL;
return seeker;
}
song_t *song_lib_find_active(const songlib_t &songlib) {
return song_lib_find_next_active(songlib, NULL);
}
int song_lib_remove(const songlib_t &songlib, song_handle_t handle) {
int retval;
song_t *goner = *(songlib.lib);
if (!goner)
return -1;
if (goner->handle == handle)
*(songlib.lib) = goner->next;
else {
while ((goner->next) && (goner->next->handle != handle))
goner = goner->next;
if (goner->next) { /* Found him? */
song_t *oldnext = goner->next;
goner->next = goner->next->next;
goner = oldnext;
} else return -1; /* No. */
}
retval = goner->status;
delete goner->it;
free(goner);
return retval;
}
void song_lib_resort(const songlib_t &songlib, song_t *song) {
if (*(songlib.lib) == song)
*(songlib.lib) = song->next;
else {
song_t *seeker = *(songlib.lib);
while (seeker->next && (seeker->next != song))
seeker = seeker->next;
if (seeker->next)
seeker->next = seeker->next->next;
}
song_lib_add(songlib, song);
}
int song_lib_count(const songlib_t &songlib) {
song_t *seeker = *(songlib.lib);
int retval = 0;
while (seeker) {
retval++;
seeker = seeker->next;
}
return retval;
}
void song_lib_set_restore_behavior(const songlib_t &songlib, song_handle_t handle, RESTORE_BEHAVIOR action) {
song_t *seeker = song_lib_find(songlib, handle);
seeker->restore_behavior = action;
}
} // End of namespace Sci
|
