diff options
Diffstat (limited to 'nx-X11/lib/lbxutil/image/dpackbits.c')
-rw-r--r-- | nx-X11/lib/lbxutil/image/dpackbits.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/nx-X11/lib/lbxutil/image/dpackbits.c b/nx-X11/lib/lbxutil/image/dpackbits.c deleted file mode 100644 index f0f2058d0..000000000 --- a/nx-X11/lib/lbxutil/image/dpackbits.c +++ /dev/null @@ -1,100 +0,0 @@ -/* $Xorg: dpackbits.c,v 1.4 2000/08/17 19:46:40 cpqbld Exp $ */ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler - * Copyright (c) 1991, 1992 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ -/* $XFree86: xc/lib/lbxutil/image/dpackbits.c,v 1.3 2000/05/18 23:46:16 dawes Exp $ */ - -#include <X11/Xos.h> -#include <X11/Xfuncproto.h> -#include <X11/extensions/lbximage.h> - -/* - * ------------------------------------------------------------------------- - * PackBits decoding for 8 bit color images - * ------------------------------------------------------------------------- - */ - -static void -DecodePackBits (char **inbuf, - int numPixels, - char *outbuf) - -{ - register char *inptr = *inbuf; - register int n, b; - - while (numPixels > 0) - { - n = (int) *inptr++; - - /* Watch out for compilers that don't sign extend chars... */ - - if (n >= 128) - n -= 256; - - if (n < 0) - { - /* replicate next byte -n+1 times */ - - if (n == -128) /* nop */ - continue; - - n = -n + 1; - numPixels -= n; - for (b = *inptr++; n-- > 0;) - *outbuf++ = b; - } - else - { - /* copy next n+1 bytes literally */ - - memcpy (outbuf, inptr, ++n); - outbuf += n; numPixels -= n; - inptr += n; - } - } - - *inbuf = inptr; -} - - -int -LbxImageDecodePackBits (char *inbuf, - char *outbuf, - int num_scan_lines, - int scan_line_size) - -{ - char *outbuf_start = outbuf; - int padded_scan_line_size = (scan_line_size % 4) ? - scan_line_size + (4 - scan_line_size % 4) : scan_line_size; - - while (num_scan_lines > 0) - { - DecodePackBits (&inbuf, scan_line_size, outbuf); - outbuf += padded_scan_line_size; - num_scan_lines--; - } - - return (outbuf - outbuf_start); -} |