143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
/*
|
|
* Copyright (C) 2020-2021 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"
|
|
|
|
#if defined(ENABLE_SOUND) && defined(USE_SOUND_ALSA)
|
|
#include <alsa/asoundlib.h>
|
|
|
|
#include "sound.h"
|
|
#include "util.h"
|
|
|
|
#define DO_FORK 1
|
|
|
|
#define PCM_DEVICE "default"
|
|
|
|
struct _sample {
|
|
SoundSampleData ssd;
|
|
};
|
|
|
|
static Sample *
|
|
_sound_alsa_Load(const char *file)
|
|
{
|
|
Sample *s;
|
|
int err;
|
|
|
|
s = ECALLOC(Sample, 1);
|
|
if (!s)
|
|
return NULL;
|
|
|
|
err = SoundSampleGetData(file, &s->ssd);
|
|
if (err)
|
|
{
|
|
Efree(s);
|
|
return NULL;
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
_sound_alsa_Destroy(Sample * s)
|
|
{
|
|
Efree(s->ssd.data);
|
|
Efree(s);
|
|
}
|
|
|
|
static void
|
|
_sound_alsa_Play(Sample * s)
|
|
{
|
|
int err;
|
|
snd_pcm_t *hdl;
|
|
snd_pcm_hw_params_t *hwp;
|
|
|
|
#if DO_FORK
|
|
if (fork())
|
|
return;
|
|
#endif
|
|
|
|
err = snd_pcm_open(&hdl, PCM_DEVICE, SND_PCM_STREAM_PLAYBACK, 0);
|
|
if (err < 0)
|
|
{
|
|
Eprintf("%s: Open '%s': %s\n", __func__, PCM_DEVICE, snd_strerror(err));
|
|
#if DO_FORK
|
|
exit(0);
|
|
#else
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
snd_pcm_hw_params_alloca(&hwp);
|
|
snd_pcm_hw_params_any(hdl, hwp);
|
|
|
|
err = snd_pcm_hw_params_set_access(hdl, hwp, SND_PCM_ACCESS_RW_INTERLEAVED);
|
|
if (err < 0)
|
|
Eprintf("%s: Set interleaved: %s\n", __func__, snd_strerror(err));
|
|
|
|
err = snd_pcm_hw_params_set_format(hdl, hwp, SND_PCM_FORMAT_S16_LE);
|
|
if (err < 0)
|
|
Eprintf("%s: Set format: %s\n", __func__, snd_strerror(err));
|
|
|
|
err = snd_pcm_hw_params_set_channels(hdl, hwp, s->ssd.channels);
|
|
if (err < 0)
|
|
Eprintf("%s: Set channels: %s\n", __func__, snd_strerror(err));
|
|
|
|
err = snd_pcm_hw_params_set_rate(hdl, hwp, s->ssd.rate, 0);
|
|
if (err < 0)
|
|
Eprintf("%s: Set rate: %s\n", __func__, snd_strerror(err));
|
|
|
|
err = snd_pcm_hw_params(hdl, hwp);
|
|
if (err < 0)
|
|
Eprintf("%s: Set HW prm: %s\n", __func__, snd_strerror(err));
|
|
|
|
err = snd_pcm_writei(hdl, s->ssd.data, s->ssd.size / (2 * s->ssd.channels));
|
|
if (err < 0)
|
|
Eprintf("%s: Write: %s\n", __func__, snd_strerror(err));
|
|
|
|
snd_pcm_drain(hdl);
|
|
snd_pcm_close(hdl);
|
|
|
|
#if DO_FORK
|
|
exit(0);
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
_sound_alsa_Init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_sound_alsa_Exit(void)
|
|
{
|
|
}
|
|
|
|
__EXPORT__ extern const SoundOps SoundOps_alsa;
|
|
|
|
const SoundOps SoundOps_alsa = {
|
|
_sound_alsa_Init, _sound_alsa_Exit, _sound_alsa_Load,
|
|
_sound_alsa_Destroy, _sound_alsa_Play,
|
|
};
|
|
|
|
#endif /* HAVE_SOUND && USE_SOUND_ALSA */
|