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Diffstat (limited to 'nxcomp/src/Bitmap.cpp')
| -rw-r--r-- | nxcomp/src/Bitmap.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/nxcomp/src/Bitmap.cpp b/nxcomp/src/Bitmap.cpp new file mode 100644 index 000000000..c89df53e3 --- /dev/null +++ b/nxcomp/src/Bitmap.cpp @@ -0,0 +1,118 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#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; +} |