1 files changed, 117 insertions, 0 deletions
diff --git a/Minecraft.Client/PS3/Audio/PS3_SoundEngine.cpp b/Minecraft.Client/PS3/Audio/PS3_SoundEngine.cpp
new file mode 100644
index 00000000..fcce5f05
--- /dev/null
+++ b/Minecraft.Client/PS3/Audio/PS3_SoundEngine.cpp
@@ -0,0 +1,117 @@
+#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, NULL, 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, NULL, 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, NULL, 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, NULL, 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 );
+}
+