jpeg_util.h

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/*! \file
  \brief  The jpeg_util file
 
  \par Copyright Information
 
  Copyright (c) 2017 by The DiSTI Corporation.<br>
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  This Software contains proprietary trade secrets of DiSTI and may not be
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  NO WARRANTY. THE SOFTWARE IS PROVIDED "AS-IS," WITHOUT WARRANTY OF ANY KIND,
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*/
#ifndef _JPEG_UTIL_H
#define _JPEG_UTIL_H
 
#include "gls_include.h"
 
namespace disti
{
/// Helper method used to decompress JPEG data into raw pixel data.
/// \param width The width of the image in pixels.
/// \param height The height of the image in pixels.
/// \param uncompressed Pointer to a memory region to receive the uncompressed data.
/// \param compressed Pointer to the memory region containing the JPEG data.
/// \param comprLen Length of the JPEG data in bytes.
/// \return Whether or not the decompression succeeded.
GLS_EXPORT bool DecompressJPEG( int width, int height, unsigned char* uncompressed, unsigned char* compressed, unsigned int comprLen );
 
/// Helper method used to compress raw pixel data into JPEG data.
/// \param width The width of the image in pixels.
/// \param height The height of the image in pixels.
/// \param quality The quality to use for compression (0-9).
/// \param uncompressed Pointer to the memory region containing the raw data to compress.
/// \param compressed Pointer to the memory region to receive the compressed JPEG data.
/// \param outputLength The length of the written compressed data in bytes.
GLS_EXPORT void CompressJPEG( int width, int height, int quality, unsigned char* uncompressed, unsigned char* compressed, unsigned long& outputLength );
 
} // namespace disti
 
#endif