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/*
* Schism Tracker - a cross-platform Impulse Tracker clone
* copyright (c) 2003-2005 Storlek <storlek@rigelseven.com>
* copyright (c) 2005-2008 Mrs. Brisby <mrs.brisby@nimh.org>
* copyright (c) 2009 Storlek & Mrs. Brisby
* copyright (c) 2010-2012 Storlek
* URL: http://schismtracker.org/
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "headers.h"
#include "util.h"
#ifdef MACOSX
#include <CoreServices/CoreServices.h>
#include <CoreAudio/AudioHardware.h>
int macosx_volume_get_max(void);
int macosx_volume_get_max(void)
{
return 65535;
}
void macosx_volume_read(int *left, int *right);
void macosx_volume_read(int *left, int *right)
{
UInt32 size;
AudioDeviceID od;
OSStatus e;
UInt32 ch[2];
Float32 fl[2];
int i;
if (left) *left = 0;
if (right) *right = 0;
size=sizeof(od);
e = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice,
&size, &od);
if (e != 0) return;
size=sizeof(ch);
e = AudioDeviceGetProperty(od,
0, /* QA1016 says "0" is master channel */
false,
kAudioDevicePropertyPreferredChannelsForStereo,
&size,
&ch);
if (e != 0) return;
for (i = 0; i < 2; i++) {
size = sizeof(Float32);
e = AudioDeviceGetProperty(od, /* device */
ch[i], /* preferred stereo channel */
false, /* output device */
kAudioDevicePropertyVolumeScalar,
&size,
&fl[i]);
if (e != 0) return;
}
if (left) *left = fl[0] * 65536.0f;
if (right) *right = fl[1] * 65536.0f;
}
void macosx_volume_write(int left, int right);
void macosx_volume_write(int left, int right)
{
UInt32 size;
AudioDeviceID od;
OSStatus e;
UInt32 ch[2];
Float32 fl[2];
int i;
size=sizeof(od);
e = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice,
&size, &od);
if (e != 0) return;
size=sizeof(ch);
e = AudioDeviceGetProperty(od,
0, /* QA1016 says "0" is master channel */
false,
kAudioDevicePropertyPreferredChannelsForStereo,
&size,
&ch);
if (e != 0) return;
fl[0] = ((float)left) / 65536.0f;
fl[1] = ((float)right) / 65536.0f;
for (i = 0; i < 2; i++) {
e = AudioDeviceSetProperty(od, /* device */
NULL, /* no timestamp */
ch[i], /* preferred stereo channel */
false, /* output device */
kAudioDevicePropertyVolumeScalar,
sizeof(Float32),
&fl[i]);
if (e != 0) return;
}
}
#endif
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