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/******************************************************************************
*
* Purpose: Implementation of the PCIDSKInterfaces class.
*
******************************************************************************
* Copyright (c) 2009
* PCI Geomatics, 50 West Wilmot Street, Richmond Hill, Ont, Canada
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "pcidsk_config.h"
#include "pcidsk_types.h"
#include "pcidsk_utils.h"
#include "pcidsk_interfaces.h"
#include "pcidsk_mutex.h"
using namespace PCIDSK;
/************************************************************************/
/* PCIDSKInterfaces() */
/* */
/* This constructor just defaults all the interfaces and */
/* functions to the default implementation. */
/************************************************************************/
PCIDSKInterfaces::PCIDSKInterfaces()
{
io = GetDefaultIOInterfaces();
OpenEDB = DefaultOpenEDB;
CreateMutex = DefaultCreateMutex;
Debug = DefaultDebug;
#if defined(HAVE_LIBJPEG)
JPEGDecompressBlock = LibJPEG_DecompressBlock;
JPEGCompressBlock = LibJPEG_CompressBlock;
#else
JPEGDecompressBlock = NULL;
JPEGCompressBlock = NULL;
#endif
}
/**
\var const IOInterfaces *PCIDSKInterfaces::io;
\brief Pointer to IO Interfaces.
***************************************************************************/
/**
\var Mutex *(*PCIDSKInterfaces::CreateMutex)(void);
\brief Function to create a mutex
***************************************************************************/
/**
\var void (*PCIDSKInterfaces::JPEGDecompressBlock)(uint8 *src_data, int src_bytes, uint8 *dst_data, int dst_bytes, int xsize, int ysize, eChanType pixel_type);
\brief Function to decompress a jpeg block
This function may be NULL if there is no jpeg interface available.
The default implementation is implemented using libjpeg.
The function decodes the jpeg compressed image in src_data (src_bytes long)
into dst_data (dst_bytes long) as image data. The result should be exactly
dst_bytes long, and will be an image of xsize x ysize of type pixel_type
(currently on CHN_8U is allowed).
Errors should be thrown as exceptions.
***************************************************************************/
/**
\var void (*PCIDSKInterfaces::JPEGCompressBlock)(uint8 *src_data, int src_bytes, uint8 *dst_data, int &dst_bytes, int xsize, int ysize, eChanType pixel_type);
\brief Function to compress a jpeg block
This function may be NULL if there is no jpeg interface available.
The default implementation is implemented using libjpeg.
The function encodes the image in src_data (src_bytes long)
into dst_data as compressed jpeg data. The passed in value of dst_bytes is the
size of the passed in dst_data array (it should be large enough to hold
any compressed result0 and dst_bytes will be returned with the resulting
actual number of bytes used.
Errors should be thrown as exceptions.
***************************************************************************/
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