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/* 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"
#include "sci/sci_memory.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*) sci_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;
}
void song_lib_dump(const songlib_t &songlib, int line) {
song_t *seeker = *(songlib.lib);
fprintf(debug_stream, "L%d:", line);
do {
fprintf(debug_stream, " %p", (void *)seeker);
if (seeker) {
fprintf(debug_stream, "[%04lx,p=%d,s=%d]->", seeker->handle, seeker->priority, seeker->status);
seeker = seeker->next;
}
fprintf(debug_stream, "\n");
} while (seeker);
fprintf(debug_stream, "\n");
}
} // End of namespace Sci
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