e16/src/sound_esound.c

149 lines
3.6 KiB
C

/*
* Copyright (C) 2000-2007 Carsten Haitzler, Geoff Harrison and various contributors
* Copyright (C) 2004-2021 Kim Woelders
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of the Software, its documentation and marketing & publicity
* materials, and acknowledgment shall be given in the documentation, materials
* and software packages that this Software was used.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <esd.h>
#include <unistd.h>
#include "sound.h"
#include "util.h"
#ifdef USE_MODULES
#define Estrdup strdup
#endif
struct _sample {
SoundSampleData ssd;
int id;
};
static int sound_fd = -1;
static Sample *
_sound_esound_Load(const char *file)
{
Sample *s;
int err, format;
if (sound_fd < 0)
return NULL;
s = ECALLOC(Sample, 1);
if (!s)
return NULL;
err = SoundSampleGetData(file, &s->ssd);
if (err)
{
Efree(s);
return NULL;
}
format = ESD_STREAM | ESD_PLAY;
if (s->ssd.bit_per_sample == 8)
format |= ESD_BITS8;
else if (s->ssd.bit_per_sample == 16)
format |= ESD_BITS16;
if (s->ssd.channels == 1)
format |= ESD_MONO;
else if (s->ssd.channels == 2)
format |= ESD_STEREO;
s->id = esd_sample_getid(sound_fd, file);
if (s->id < 0)
{
int confirm;
s->id = esd_sample_cache(sound_fd, format, s->ssd.rate, s->ssd.size,
file);
if (write(sound_fd, s->ssd.data, s->ssd.size) != (ssize_t) s->ssd.size)
{
s->id = 0;
goto done;
}
confirm = esd_confirm_sample_cache(sound_fd);
if (confirm != s->id)
s->id = 0;
}
done:
EFREE_NULL(s->ssd.data);
if (s->id <= 0)
EFREE_NULL(s);
return s;
}
static void
_sound_esound_Destroy(Sample *s)
{
if (s->id && sound_fd >= 0)
{
/* Why the hell is this symbol not in esd? */
/* it's in esd.h - evil evil evil */
/* esd_sample_kill(sound_fd,s->id); */
esd_sample_free(sound_fd, s->id);
}
Efree(s->ssd.data);
Efree(s);
}
static void
_sound_esound_Play(Sample *s)
{
if (sound_fd < 0)
return;
if (s->id > 0)
esd_sample_play(sound_fd, s->id);
}
static int
_sound_esound_Init(void)
{
if (sound_fd >= 0)
return 0;
sound_fd = esd_open_sound(NULL);
return sound_fd < 0;
}
static void
_sound_esound_Exit(void)
{
if (sound_fd < 0)
return;
close(sound_fd);
sound_fd = -1;
}
__EXPORT__ extern const SoundOps SoundOps_esd;
const SoundOps SoundOps_esd = {
_sound_esound_Init, _sound_esound_Exit,
_sound_esound_Load, _sound_esound_Destroy, _sound_esound_Play,
};