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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */
/* */
/* NXCOMP, NX protocol compression and NX extensions to this software */
/* are copyright of NoMachine. Redistribution and use of the present */
/* software is allowed according to terms specified in the file LICENSE */
/* which comes in the source distribution. */
/* */
/* Check http://www.nomachine.com/licensing.html for applicability. */
/* */
/* NX and NoMachine are trademarks of NoMachine S.r.l. */
/* */
/* All rights reserved. */
/* */
/**************************************************************************/
#include "Misc.h"
#include "Bitmap.h"
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
int UnpackBitmap(T_geometry *geometry, unsigned char method, unsigned char *src_data,
int src_size, int dst_bpp, int dst_width, int dst_height,
unsigned char *dst_data, int dst_size)
{
if (dst_bpp != 32)
{
#ifdef TEST
*logofs << "UnpackBitmap: Nothing to do with "
<< "image of " << dst_bpp << " bits per plane "
<< "and size " << src_size << ".\n"
<< logofs_flush;
#endif
if (src_size != dst_size)
{
#ifdef PANIC
*logofs << "UnpackBitmap: PANIC! Size mismatch with "
<< src_size << " bytes in the source and "
<< dst_size << " in the destination.\n"
<< logofs_flush;
#endif
return -1;
}
memcpy(dst_data, src_data, src_size);
return 1;
}
else if (src_size != dst_width * dst_height * 3 ||
dst_size != dst_width * dst_height * 4)
{
#ifdef PANIC
*logofs << "UnpackBitmap: PANIC! Size mismatch with "
<< src_size << " bytes in the source and "
<< dst_size << " in the destination.\n"
<< logofs_flush;
#endif
return -1;
}
/*
* Insert the 4th byte in the bitmap.
*/
unsigned char *next_src = src_data;
unsigned char *next_dst = dst_data;
if (geometry -> image_byte_order == LSBFirst)
{
while (next_src < src_data + src_size)
{
*next_dst++ = *next_src++;
*next_dst++ = *next_src++;
*next_dst++ = *next_src++;
next_dst++;
}
}
else
{
while (next_src < src_data + src_size)
{
next_dst++;
*next_dst++ = *next_src++;
*next_dst++ = *next_src++;
*next_dst++ = *next_src++;
}
}
#ifdef TEST
*logofs << "UnpackBitmap: Unpacked " << src_size
<< " bytes to a buffer of " << dst_size
<< " with " << dst_bpp << " bits per plane.\n"
<< logofs_flush;
#endif
return 1;
}
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