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#include "..\stdafx.h"
#include <sysutil/sysutil_sysparam.h>
#include <cell/sysmodule.h>
#include <sys/spu_initialize.h>
#include <fcntl.h>
#include <unistd.h>
#include <cell/audio.h>
#include "..\..\Common\Audio\SoundEngine.h"
#include "..\..\Common\Consoles_App.h"
#include "..\..\PS3\Miles\include\mss.h"
// This file has the platform specific functions required for PS3 audio
//
// this function configures the audio hardware.
// you specify the minimum number of channels that you need, and it
// returns the number of output channels that will be used (which will
// be at least your minimum count, but possibly more). it will return 0
// for any failure cases.
int SoundEngine::initAudioHardware( int minimum_chans )
{
int ret;
int ch_pcm;
int ch_bit;
CellAudioOutConfiguration a_config;
memset( &a_config, 0, sizeof( CellAudioOutConfiguration ) );
// first lets see how many pcm output channels we have
ch_pcm = cellAudioOutGetSoundAvailability( CELL_AUDIO_OUT_PRIMARY,
CELL_AUDIO_OUT_CODING_TYPE_LPCM,
CELL_AUDIO_OUT_FS_48KHZ, 0 );
if ( ch_pcm >= minimum_chans )
{
a_config.channel = ch_pcm;
a_config.encoder = CELL_AUDIO_OUT_CODING_TYPE_LPCM;
a_config.downMixer = CELL_AUDIO_OUT_DOWNMIXER_NONE; /* No downmixer is used */
cellAudioOutConfigure( CELL_AUDIO_OUT_PRIMARY, &a_config, nullptr, 0 );
ret = ch_pcm;
}
else
{
switch ( ch_pcm )
{
case 6:
// this means we asked for 8 channels, but only 6 are available
// so, we'll turn on the 7.1 to 5.1 downmixer.
a_config.channel = 6;
a_config.encoder = CELL_AUDIO_OUT_CODING_TYPE_LPCM;
a_config.downMixer = CELL_AUDIO_OUT_DOWNMIXER_TYPE_B;
if ( cellAudioOutConfigure( CELL_AUDIO_OUT_PRIMARY, &a_config, nullptr, 0 ) != CELL_OK )
{
return 0; // error - the downmixer didn't init
}
ret = 8;
break;
case 2:
// ok, this means they asked for multi-channel out, but only stereo
// is supported. we'll try dolby digital first and then the downmixer
ch_bit = cellAudioOutGetSoundAvailability( CELL_AUDIO_OUT_PRIMARY,
CELL_AUDIO_OUT_CODING_TYPE_AC3,
CELL_AUDIO_OUT_FS_48KHZ, 0 );
if ( ch_bit > 0 )
{
a_config.channel = ch_bit;
a_config.encoder = CELL_AUDIO_OUT_CODING_TYPE_AC3;
if ( ch_bit >= minimum_chans )
{
// we have enough channels to support their minimum
a_config.downMixer = CELL_AUDIO_OUT_DOWNMIXER_NONE;
ret = ch_bit;
}
else
{
// we don't have enough channels to support their minimum, so use the downmixer
a_config.downMixer = CELL_AUDIO_OUT_DOWNMIXER_TYPE_B;
ret = 8;
}
if ( cellAudioOutConfigure( CELL_AUDIO_OUT_PRIMARY, &a_config, nullptr, 0 ) == CELL_OK )
{
break;
}
// if we got here the dolby encoder, didn't init, so fall through to downmixing to stereo
}
a_config.channel = 2;
a_config.encoder = CELL_AUDIO_OUT_CODING_TYPE_LPCM;
a_config.downMixer = CELL_AUDIO_OUT_DOWNMIXER_TYPE_A;
if ( cellAudioOutConfigure( CELL_AUDIO_OUT_PRIMARY, &a_config, nullptr, 0 ) != CELL_OK )
{
return 0; // error - downmixer didn't work
}
ret = 2; // downmixer does 7.0 to 2.0 downmixing...
break;
default:
// some other weird case that we don't understand
return 0;
}
}
// turn off copy protection stupidness
cellAudioOutSetCopyControl( CELL_AUDIO_OUT_PRIMARY,
CELL_AUDIO_OUT_COPY_CONTROL_COPY_FREE );
return( ret );
}
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