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/* MikMod sound library (c) 2003-2014 Raphael Assenat and others -
* see AUTHORS file for a complete list.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
/* PulseAudio driver for libmikmod, quick'n'dirty, using pa_simple api.
* Written by O. Sezer <sezero@users.sourceforge.net>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mikmod_internals.h"
#ifdef DRV_PULSEAUDIO
#include <string.h>
#include <pulse/simple.h>
#include <pulse/error.h>
#define PA_NUMSAMPLES 256 /* a fair default for md_mixfreq <= 11025 Hz */
static BOOL enabled = 0;
static pa_simple *pasp;
static char *server = NULL; /* Server name, or NULL for default */
static char *sink = NULL; /* Sink (resp. source) name, or NULL for default */
static SBYTE *pabuf;
static ULONG pabufsize;
static void PULSEAUDIO_CommandLine(const CHAR *cmdline)
{
MikMod_free(server);
MikMod_free(sink);
server = MD_GetAtom("server", cmdline, 0);
if (server && !*server) {
MikMod_free(server);
server = NULL;
}
sink = MD_GetAtom("sink", cmdline, 0);
if (sink && !*sink) {
MikMod_free(sink);
sink = NULL;
}
}
static BOOL PULSEAUDIO_IsPresent(void)
{
if (!pasp) {
pa_sample_spec paspec;
paspec.format = PA_SAMPLE_S16NE;
paspec.rate = 22050;
paspec.channels = 2;
pasp = pa_simple_new (server, "libMikMod client", PA_STREAM_PLAYBACK,
sink, "_mm_output_test", &paspec, NULL, NULL, NULL);
if (!pasp) return 0;
pa_simple_free(pasp);
pasp = NULL;
}
return 1;
}
static int PULSEAUDIO_Init(void)
{
pa_sample_spec paspec;
int err;
paspec.format = (md_mode & DMODE_FLOAT)? PA_SAMPLE_FLOAT32NE :
(md_mode & DMODE_16BITS)? PA_SAMPLE_S16NE : PA_SAMPLE_U8;
paspec.rate = md_mixfreq;
paspec.channels = (md_mode & DMODE_STEREO) ? 2 : 1;
pasp = pa_simple_new (server, "libMikMod client", PA_STREAM_PLAYBACK,
sink, "libMikMod music", &paspec, NULL, NULL, &err);
if (!pasp) {
#ifdef MIKMOD_DEBUG
fprintf(stderr, "PulseAudio error: %s", pa_strerror(err));
#endif
_mm_errno = MMERR_OPENING_AUDIO;
return 1;
}
pabufsize = (md_mixfreq <= 11025) ? (PA_NUMSAMPLES ) :
(md_mixfreq <= 22050) ? (PA_NUMSAMPLES * 2) :
(md_mixfreq <= 44100) ? (PA_NUMSAMPLES * 4) :
(PA_NUMSAMPLES * 8);
if (md_mode & DMODE_FLOAT) pabufsize *= 4;
else if (md_mode & DMODE_16BITS) pabufsize *= 2;
if (md_mode & DMODE_STEREO) pabufsize *= 2;
if (!(pabuf = (SBYTE *) MikMod_malloc(pabufsize))) {
pa_simple_free(pasp);
pasp = NULL;
_mm_errno = MMERR_OUT_OF_MEMORY;
return 1;
}
enabled = 1;
md_mode |= DMODE_SOFT_MUSIC;
return VC_Init();
}
static void PULSEAUDIO_Exit(void)
{
enabled = 0;
/* pa_simple_drain(pasp, NULL);*/
pa_simple_flush(pasp, NULL);
pa_simple_free(pasp);
pasp = NULL;
MikMod_free(pabuf);
pabuf = NULL;
VC_Exit();
}
static int PULSEAUDIO_Reset(void)
{
PULSEAUDIO_Exit();
return PULSEAUDIO_Init();
}
static void PULSEAUDIO_Update(void)
{
ULONG len;
int err;
len = VC_WriteBytes(pabuf, pabufsize);
if (enabled) {
if (pa_simple_write(pasp, pabuf, len, &err) < 0) {
enabled = 0;
#ifdef MIKMOD_DEBUG
fprintf(stderr, "PulseAudio write: %s", pa_strerror(err));
#endif
}
}
}
static void PULSEAUDIO_PlayStop(void)
{
VC_PlayStop();
if (pasp) pa_simple_flush(pasp, NULL);
}
static int PULSEAUDIO_PlayStart(void)
{
if (!pasp) return 1;
return VC_PlayStart();
}
MIKMODAPI struct MDRIVER drv_pulseaudio =
{
NULL,
"PulseAudio",
"PulseAudio driver v0.1",
0, 255,
"pulseaudio",
"server:t::PulseAudio server name\n"
"sink:t::Sink (resp. source) name\n",
PULSEAUDIO_CommandLine,
PULSEAUDIO_IsPresent,
VC_SampleLoad,
VC_SampleUnload,
VC_SampleSpace,
VC_SampleLength,
PULSEAUDIO_Init,
PULSEAUDIO_Exit,
PULSEAUDIO_Reset,
VC_SetNumVoices,
PULSEAUDIO_PlayStart,
PULSEAUDIO_PlayStop,
PULSEAUDIO_Update,
NULL,
VC_VoiceSetVolume,
VC_VoiceGetVolume,
VC_VoiceSetFrequency,
VC_VoiceGetFrequency,
VC_VoiceSetPanning,
VC_VoiceGetPanning,
VC_VoicePlay,
VC_VoiceStop,
VC_VoiceStopped,
VC_VoiceGetPosition,
VC_VoiceRealVolume
};
#else
MISSING(drv_pulseaudio);
#endif
/* ex:set ts=8: */
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