ede/edewm/Sound.cpp

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2007-07-18 22:20:04 +04:00
/*
* $Id$
*
* Edewm, window manager
* Part of Equinox Desktop Environment (EDE).
* Copyright (c) 2000-2006 EDE Authors.
*
* This program is licenced under terms of the
* GNU General Public Licence version 2 or newer.
* See COPYING for details.
*/
#include "Sound.h"
#include "debug.h"
#ifdef SOUND
#include <vorbis/vorbisfile.h>
#include <vorbis/codec.h>
#endif
#include <assert.h>
#include <stdio.h>
#include <stdlib.h> // free
#include <string.h> // strdup
SoundSystem::SoundSystem()
{
#ifdef SOUND
device = NULL;
inited = false;
down = false;
#endif
}
SoundSystem::~SoundSystem()
{
#ifdef SOUND
if(!down)
shutdown(); // just in case
#endif
}
void SoundSystem::init(void)
{
#ifdef SOUND
EPRINTF("Loading sound system\n");
ao_initialize();
default_driver = ao_default_driver_id();
for(int i = 0; i < KNOWN_SOUNDS; i++)
{
event_sound[i].allocated = false;
event_sound[i].loaded = false;
event_sound[i].file_to_play = NULL;
}
inited = true;
#endif
}
void SoundSystem::shutdown(void)
{
#ifdef SOUND
EPRINTF("Shutting down sound system\n");
ao_shutdown();
for(int i = 0; i < KNOWN_SOUNDS; i++)
{
if(event_sound[i].allocated)
free(event_sound[i].file_to_play);
}
down = true;
#endif
}
void SoundSystem::add(short event, const char* file)
{
#ifdef SOUND
assert(event < KNOWN_SOUNDS);
if(event_sound[event].allocated)
free(event_sound[event].file_to_play);
event_sound[event].file_to_play = strdup(file);
event_sound[event].allocated = true;
event_sound[event].loaded = true;
#endif
}
int SoundSystem::play(short event)
{
#ifdef SOUND
assert(event < KNOWN_SOUNDS);
if(event_sound[event].loaded)
play(event_sound[event].file_to_play);
else
ELOG("Skipping this sound, no file for it");
#endif
return 1;
}
int SoundSystem::play(const char* fname)
{
#ifdef SOUND
assert(inited != false);
assert(fname != NULL);
FILE* f = fopen(fname, "rb");
if(f == NULL)
{
ELOG("Can't open %s\n", fname);
return 0;
}
OggVorbis_File vf;
vorbis_info* vi;
if(ov_open(f, &vf, NULL, 0) < 0)
{
ELOG("%s does not appear to be ogg file\n");
fclose(f);
return 0;
}
// read and print comments
char** comm = ov_comment(&vf, -1)->user_comments;
vi = ov_info(&vf, -1);
while(*comm)
{
ELOG("%s", *comm);
comm++;
}
assert(vi != NULL);
format.bits = 4 * 8; // TODO: should be word_size * 8
format.channels = vi->channels;
format.rate = vi->rate;
format.byte_format = AO_FMT_NATIVE;
// now open device
device = ao_open_live(default_driver, &format, NULL);
if(device == NULL)
{
ELOG("Can't open device");
ov_clear(&vf);
return 0;
}
int current_section;
while(1)
{
long ret = ov_read(&vf, pcm_out, sizeof(pcm_out), 0, 2, 1, &current_section);
if(ret == 0)
break;
else if(ret < 0)
ELOG("Error in the stream, continuing...");
else
ao_play(device, pcm_out, ret);
}
ao_close(device);
device = NULL;
// NOTE: fclose(f) is not needed, since ov_clear() will close file
ov_clear(&vf);
#endif // SOUND
return 1;
}