From 3e924126b56c4d421e8263d25f6b14aa4ceed047 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Sun, 13 Nov 2011 09:27:51 +0100 Subject: Imported nxcomp-3.1.0-4.tar.gz Summary: Imported nxcomp-3.1.0-4.tar.gz Keywords: Imported nxcomp-3.1.0-4.tar.gz into Git repository --- nxcomp/Bitmap.cpp | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100755 nxcomp/Bitmap.cpp (limited to 'nxcomp/Bitmap.cpp') diff --git a/nxcomp/Bitmap.cpp b/nxcomp/Bitmap.cpp new file mode 100755 index 000000000..c474568ec --- /dev/null +++ b/nxcomp/Bitmap.cpp @@ -0,0 +1,106 @@ +/**************************************************************************/ +/* */ +/* 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; +} -- cgit v1.2.3