File: XnStreamCompression.h

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/****************************************************************************
*                                                                           *
*  OpenNI 1.x Alpha                                                         *
*  Copyright (C) 2011 PrimeSense Ltd.                                       *
*                                                                           *
*  This file is part of OpenNI.                                             *
*                                                                           *
*  OpenNI is free software: you can redistribute it and/or modify           *
*  it under the terms of the GNU Lesser General Public License as published *
*  by the Free Software Foundation, either version 3 of the License, or     *
*  (at your option) any later version.                                      *
*                                                                           *
*  OpenNI 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 Lesser General Public License for more details.                      *
*                                                                           *
*  You should have received a copy of the GNU Lesser General Public License *
*  along with OpenNI. If not, see <http://www.gnu.org/licenses/>.           *
*                                                                           *
****************************************************************************/
#ifndef _XN_STREAMCOMPRESSION_H_
#define _XN_STREAMCOMPRESSION_H_

//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnOS.h>
#include <jpeglib.h>
#include <setjmp.h>

//---------------------------------------------------------------------------
// Defines
//---------------------------------------------------------------------------
#define XN_STREAM_COMPRESSION_DEPTH16Z_WORSE_RATIO 1.333F
#define XN_STREAM_COMPRESSION_IMAGE8Z_WORSE_RATIO 1.333F
#define XN_STREAM_COMPRESSION_IMAGEJ_WORSE_RATIO 1.2F
#define XN_STREAM_COMPRESSION_CONF4_WORSE_RATIO 0.51F
#define XN_STREAM_COMPRESSION_JPEG_DEFAULT_QUALITY 90

#define XN_STREAM_STRING_BAD_FORMAT -1

#define XN_MASK_JPEG "JPEG"

//---------------------------------------------------------------------------
// Structs
//---------------------------------------------------------------------------

XN_PRAGMA_START_DISABLED_WARNING_SECTION(XN_STRUCT_PADDED_WARNING_ID);

typedef struct XnLibJpegErrorMgr
{
	struct jpeg_error_mgr pub;

	jmp_buf setjmpBuffer;
} XnLibJpegErrorMgr; 

XN_PRAGMA_STOP_DISABLED_WARNING_SECTION;

typedef struct XnStreamCompJPEGContext
{
	jpeg_compress_struct		jCompStruct;
	XnLibJpegErrorMgr			jErrMgr;
	struct jpeg_destination_mgr	jDestMgr;
} XnStreamCompJPEGContext;

typedef struct XnStreamUncompJPEGContext
{
	jpeg_decompress_struct	jDecompStruct;
	XnLibJpegErrorMgr		jErrMgr;
	struct jpeg_source_mgr	jSrcMgr;
} XnStreamUncompJPEGContext;

//---------------------------------------------------------------------------
// Functions Declaration
//---------------------------------------------------------------------------
XnStatus XnStreamCompressDepth16Z(const XnUInt16* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);
XnStatus XnStreamCompressDepth16ZWithEmbTable(const XnUInt16* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize, XnUInt16 nMaxValue);
XnStatus XnStreamUncompressDepth16Z(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt16* pOutput, XnUInt32* pnOutputSize);
XnStatus XnStreamUncompressDepth16ZWithEmbTable(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt16* pOutput, XnUInt32* pnOutputSize);

XnStatus XnStreamCompressImage8Z(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);
XnStatus XnStreamUncompressImage8Z(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);

XnStatus XnStreamCompressConf4(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);
XnStatus XnStreamUncompressConf4(const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);

void		   XnStreamJPEGCompDummyFunction(struct jpeg_compress_struct* pjCompStruct);
boolean		   XnStreamJPEGCompDummyFailFunction(struct jpeg_compress_struct* pjCompStruct);
XnStatus XnStreamInitCompressImageJ(XnStreamCompJPEGContext* pStreamCompJPEGContext);
XnStatus XnStreamFreeCompressImageJ(XnStreamCompJPEGContext* pStreamCompJPEGContext);
XnStatus XnStreamCompressImage8J(XnStreamCompJPEGContext* pStreamCompJPEGContext, const XnUInt8* pInput, XnUInt8* pOutput, XnUInt32* pnOutputSize, const XnUInt32 nXRes, const XnUInt32 nYRes, const XnUInt32 nQuality);
XnStatus XnStreamCompressImage24J(XnStreamCompJPEGContext* pStreamCompJPEGContext, const XnUInt8* pInput, XnUInt8* pOutput, XnUInt32* pnOutputSize, const XnUInt32 nXRes, const XnUInt32 nYRes, const XnUInt32 nQuality);

void			   XnStreamJPEGDecompDummyFunction(struct jpeg_decompress_struct* pjDecompStruct);
boolean			   XnStreamJPEGDecompDummyFailFunction(struct jpeg_decompress_struct* pjDecompStruct);
void			   XnStreamJPEGDecompSkipFunction(struct jpeg_decompress_struct* pjDecompStruct, XnInt nNumBytes);
XnStatus XnStreamInitUncompressImageJ(XnStreamUncompJPEGContext* pStreamUncompJPEGContext);
XnStatus XnStreamFreeUncompressImageJ(XnStreamUncompJPEGContext* pStreamUncompJPEGContext);
XnStatus XnStreamUncompressImageJ(XnStreamUncompJPEGContext* pStreamUncompJPEGContext, const XnUInt8* pInput, const XnUInt32 nInputSize, XnUInt8* pOutput, XnUInt32* pnOutputSize);

#endif //_XN_STREAMCOMPRESSION_H_