CWE-ou-minkata/MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plAudio/plDSoundBuffer.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

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 3 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, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
//////////////////////////////////////////////////////////////////////////////
//																			//
//	plDSoundBuffer - Simple wrapper class for a DirectSound buffer.			//
//					 Allows us to simplify all the work done behind the		//
//					 scenes in plWin32BufferThread.							//
//																			//
//////////////////////////////////////////////////////////////////////////////

#ifndef _plDSoundBuffer_h
#define _plDSoundBuffer_h

#include "hsStlUtils.h"
#include "hsTemplates.h"
#include "plEAXEffects.h"
#define STREAMING_BUFFERS 16
#define	STREAM_BUFFER_SIZE	    4608*4

//#define VOICE_BUFFERS 4
//#define VOICE_BUFFER_SIZE	4608

class plWAVHeader;
class plAudioFileReader;

typedef struct tWAVEFORMATEX WAVEFORMATEX;
typedef struct _DSBUFFERDESC DSBUFFERDESC;


// Ported to OpenAL from DirectSound May 2006. Idealy the openal sources would be seperate from this class.
// OpenAl sound buffer, and source. 
class plDSoundBuffer
{
public:
	plDSoundBuffer( UInt32 size, plWAVHeader &bufferDesc, hsBool enable3D, hsBool looping, hsBool tryStatic = false, bool streaming = false );
	~plDSoundBuffer();

	void		Play( void );
	void		Stop( void );
	void		Rewind() ;
	
	UInt32		GetLengthInBytes( void ) const;
	void		SetScalarVolume( hsScalar volume );	// Sets the volume, but on a range from 0 to 1

	unsigned	GetSource() { return source; }
	void		SetPosition(float x, float y, float z);
	void		SetOrientation(float x, float y, float z);
	void		SetVelocity(float x, float y, float z);
	void		SetConeAngles(int inner, int outer);
	void		SetConeOrientation(float x, float y, float z);
	void		SetConeOutsideVolume(int vol);

	void		SetLooping( hsBool loop );
	void		SetMinDistance( int dist);
	void		SetMaxDistance( int dist );

	hsBool		IsValid( void ) const { return fValid; }
	hsBool		IsPlaying( void );
	hsBool		IsLooping( void ) const { return fLooping; }
	hsBool		IsEAXAccelerated( void ) const;

	bool		FillBuffer(void *data, unsigned bytes, plWAVHeader *header);

	// Streaming support
	bool		SetupStreamingSource(plAudioFileReader *stream);
	bool		SetupStreamingSource(void *data, unsigned bytes);
	int			BuffersProcessed();
	bool		StreamingFillBuffer(plAudioFileReader *stream);

	bool		SetupVoiceSource();
	bool		VoiceFillBuffer(void *data, unsigned bytes, unsigned buferId);
	void		UnQueueVoiceBuffers();

	
	unsigned	GetByteOffset();
	UInt32		GetBufferBytePos( hsScalar timeInSecs ) const;
	UInt32		BytePosToMSecs( UInt32 bytePos ) const;

	void			SetEAXSettings(  plEAXSourceSettings *settings, hsBool force = false );
	void			SetTimeOffsetBytes(unsigned bytes);
	UInt8			GetBlockAlign( void ) const;
	static UInt32	GetNumBuffers() { return fNumBuffers; }
	float			GetDefaultMinDistance() { return fDefaultMinDistance; }
	bool			GetAvailableBufferId(unsigned *bufferId);
	unsigned		GetNumQueuedBuffers(){ return fNumQueuedBuffers;} // returns the max number of buffers queued on a source

	float		GetTimeOffsetSec();
	void		SetTimeOffsetSec(float seconds);
	int			BuffersQueued();

protected:

	enum BufferType
	{
		kStatic,
		kStreaming,
		kVoice,
	};

	BufferType			fType;
	hsBool				fValid, fLooping;
	UInt32				fLockLength;
	void *				fLockPtr;
	
	hsTArray<UInt32>	fPosNotifys;
	bool				fStreaming;
	DSBUFFERDESC*		fBufferDesc;

	unsigned			buffer;									// used if this is not a streaming buffer
	unsigned			streamingBuffers[STREAMING_BUFFERS];	// used if this is a streaming buffer
	std::list<unsigned>	mAvailableBuffers;						// used for doing our own buffer management. Specifically voice chat, since we dont want old buffers queued 

	unsigned			source;
	unsigned int		fStreamingBufferSize;

	plEAXSource			fEAXSource;
	
	static UInt32		fNumBuffers;
	static float		fDefaultMinDistance;

	unsigned			fNumQueuedBuffers;
	hsScalar			fPrevVolume;

	void	IAllocate( UInt32 size, plWAVHeader &bufferDesc, hsBool enable3D, hsBool tryStatic );
	void	IRelease( void );
	int		IGetALFormat(unsigned bitsPerSample, unsigned int numChannels);
};

#endif //_plDSoundBuffer_h