From 42e72ef5f513977227328efba9482225b643697a Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Sun, 13 Nov 2011 09:52:37 +0100 Subject: Imported nxcompext-3.1.0-2.tar.gz Summary: Imported nxcompext-3.1.0-2.tar.gz Keywords: Imported nxcompext-3.1.0-2.tar.gz into Git repository --- nxcompext/Bitmap.c | 112 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 nxcompext/Bitmap.c (limited to 'nxcompext/Bitmap.c') diff --git a/nxcompext/Bitmap.c b/nxcompext/Bitmap.c new file mode 100644 index 000000000..725eaacff --- /dev/null +++ b/nxcompext/Bitmap.c @@ -0,0 +1,112 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NXCOMPEXT, 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 rigths reserved. */ +/* */ +/**************************************************************************/ + +#include +#include + +#include "NXlib.h" + +#include "Bitmap.h" + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG + +char *BitmapCompressData(XImage *image, unsigned int *size) +{ + if (image -> bits_per_pixel != 32) + { + #ifdef TEST + fprintf(stderr, "******BitmapCompressData: Nothing to do with image of [%d] bpp and size [%d].\n", + image -> bits_per_pixel, image -> bytes_per_line * image -> height); + #endif + + *size = image -> bytes_per_line * image -> height; + + return image -> data; + } + else + { + /* + * Remove the 4th byte from the bitmap. + */ + + char *data; + + char *next_src; + char *next_dst; + + #ifdef TEST + + if (image -> bytes_per_line != 4 * image -> width) + { + fprintf(stderr, "******BitmapCompressData: PANIC! Image as [%d] bytes per line with expected [%d].\n", + image -> bytes_per_line, 4 * image -> width); + + return NULL; + } + + #endif + + *size = image -> width * image -> height * 3; + + data = Xmalloc(*size); + + if (data == NULL) + { + #ifdef PANIC + fprintf(stderr, "******BitmapCompressData: PANIC! Failed to allocate [%d] bytes for the destination.\n", + *size); + #endif + + *size = image -> bytes_per_line * image -> height; + + return image -> data; + } + + next_src = image -> data; + next_dst = data; + + if (image -> byte_order == LSBFirst) + { + while (next_src < image -> data + + image -> bytes_per_line * image -> height) + { + *next_dst++ = *next_src++; + *next_dst++ = *next_src++; + *next_dst++ = *next_src++; + + next_src++; + } + } + else + { + while (next_src < image -> data + + image -> bytes_per_line * image -> height) + { + next_src++; + + *next_dst++ = *next_src++; + *next_dst++ = *next_src++; + *next_dst++ = *next_src++; + } + } + + return data; + } +} -- cgit v1.2.3