136 lines
2.8 KiB
Plaintext
136 lines
2.8 KiB
Plaintext
/*
|
|
* This file is part of sidplayfp, a console SID player.
|
|
*
|
|
* Copyright 2013 Leandro Nini
|
|
* Copyright 2008 Antti Lankila
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "audiodrv.h"
|
|
|
|
#ifdef HAVE_PULSE
|
|
|
|
#include <new>
|
|
#include <pulse/error.h>
|
|
|
|
Audio_Pulse::Audio_Pulse() :
|
|
AudioBase("PULSE")
|
|
{
|
|
outOfOrder();
|
|
}
|
|
|
|
Audio_Pulse::~Audio_Pulse()
|
|
{
|
|
close ();
|
|
}
|
|
|
|
void Audio_Pulse::outOfOrder()
|
|
{
|
|
_sampleBuffer = NULL;
|
|
clearError();
|
|
}
|
|
|
|
bool Audio_Pulse::open(AudioConfig &cfg)
|
|
{
|
|
pa_sample_spec pacfg = {};
|
|
|
|
pacfg.channels = cfg.channels;
|
|
pacfg.rate = cfg.frequency;
|
|
pacfg.format = PA_SAMPLE_S16NE;
|
|
|
|
// Set sample precision and type of encoding.
|
|
int err;
|
|
_audioHandle = pa_simple_new(
|
|
NULL,
|
|
"sidplayfp",
|
|
PA_STREAM_PLAYBACK,
|
|
NULL,
|
|
"sidplayfp",
|
|
&pacfg,
|
|
NULL,
|
|
NULL,
|
|
&err
|
|
);
|
|
|
|
try
|
|
{
|
|
if (! _audioHandle) {
|
|
throw error(pa_strerror(err));
|
|
}
|
|
|
|
cfg.bufSize = 4096;
|
|
|
|
try
|
|
{
|
|
_sampleBuffer = new short[cfg.bufSize];
|
|
}
|
|
catch (std::bad_alloc const &ba)
|
|
{
|
|
throw error("Unable to allocate memory for sample buffers.");
|
|
}
|
|
|
|
_settings = cfg;
|
|
|
|
return true;
|
|
}
|
|
catch(error const &e)
|
|
{
|
|
setError(e.message());
|
|
|
|
if (_audioHandle)
|
|
pa_simple_free(_audioHandle);
|
|
_audioHandle = NULL;
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Close an opened audio device, free any allocated buffers and
|
|
// reset any variables that reflect the current state.
|
|
void Audio_Pulse::close()
|
|
{
|
|
if (_audioHandle != NULL)
|
|
{
|
|
pa_simple_free(_audioHandle);
|
|
_audioHandle = NULL;
|
|
}
|
|
|
|
if (_sampleBuffer != NULL)
|
|
{
|
|
delete [] _sampleBuffer;
|
|
outOfOrder ();
|
|
}
|
|
}
|
|
|
|
bool Audio_Pulse::write()
|
|
{
|
|
if (_audioHandle == NULL)
|
|
{
|
|
setError("Device not open.");
|
|
return false;
|
|
}
|
|
|
|
int err;
|
|
if (pa_simple_write(_audioHandle, _sampleBuffer, _settings.bufSize * 2, &err) < 0)
|
|
{
|
|
setError(pa_strerror(err));
|
|
// FIXME should we return false here?
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#endif // HAVE_PULSE
|