John Ellson (ellson@graphviz.org) Oct 31, 1997
==============================================================================
/********************************************/
/* gd interface to freetype library */
/* */
/* John Ellson ellson@graphviz.org */
/********************************************/
==============================================================================
/*
This is a header file for gd font, generated using
bdftogd version 0.51 by Jan Pazdziora, adelton@fi.muni.cz
from bdf font
-Misc-Fixed-Bold-R-Normal-Sans-15-140-75-75-C-90-ISO8859-2
at Mon Jan 26 14:45:58 1998.
The original bdf was holding following copyright:
"Libor Skarvada, libor@informatics.muni.cz"
*/
==============================================================================
/*
* gd_jpeg.c: Read and write JPEG (JFIF) format image files using the
* gd graphics library (http://www.libgd.org).
*
* This software is based in part on the work of the Independent JPEG
* Group. For more information on the IJG JPEG software (and JPEG
* documentation, etc.), see ftp://ftp.uu.net/graphics/jpeg/.
*
* NOTE: IJG 12-bit JSAMPLE (BITS_IN_JSAMPLE == 12) mode is not
* supported at all on read in gd 2.0, and is not supported on write
* except for palette images, which is sort of pointless (TBB). Even that
* has never been tested according to DB.
*
* Copyright 2000 Doug Becker, mailto:thebeckers@home.com
*
* Modification 4/18/00 TBB: JPEG_DEBUG rather than just DEBUG,
* so VC++ builds don't spew to standard output, causing
* major CGI brain damage
*
* 2.0.10: more efficient gdImageCreateFromJpegCtx, thanks to
* Christian Aberger
*/
==============================================================================
/*---------------------------------------------------------------------------
gd_png.c Copyright 1999 Greg Roelofs and Thomas Boutell
---------------------------------------------------------------------------*/
==============================================================================
/* Code drawn from ppmtogif.c, from the pbmplus package
**
** Based on GIFENCOD by David Rowley <mgardi@watdscu.waterloo.edu>. A
** Lempel-Zim compression based on "compress".
**
** Modified by Marcel Wijkstra <wijkstra@fwi.uva.nl>
**
** Copyright (C) 1989 by Jef Poskanzer.
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
**
** The Graphics Interchange Format(c) is the Copyright property of
** CompuServe Incorporated. GIF(sm) is a Service Mark property of
** CompuServe Incorporated.
*/
==============================================================================
/*
* io.c
*
* Implements the simple I/O 'helper' routines.
*
* Not really essential, but these routines were used extensively in GD,
* so they were moved here. They also make IOCtx calls look better...
*
* Written (or, at least, moved) 1999, Philip Warner.
*
*/
==============================================================================
/*
*
* Implements buffer overflow check routines.
*
* Written 2004, Phil Knirsch.
* Based on netpbm fixes by Alan Cox.
*
*/
==============================================================================
/*
WBMP: Wireless Bitmap Type 0: B/W, Uncompressed Bitmap
Specification of the WBMP format can be found in the file:
You can download the WAP specification on: http://www.wapforum.com/
Copyright (C) Johan Van den Brande (johan@vandenbrande.com)
Fixed: gdImageWBMPPtr, gdImageWBMP
Recoded: gdImageWBMPCtx for use with my wbmp library
(wbmp library included, but you can find the latest distribution
Implemented: gdImageCreateFromWBMPCtx, gdImageCreateFromWBMP
---------------------------------------------------------------------------
Parts of this code are from Maurice Smurlo.
** Copyright (C) Maurice Szmurlo --- T-SIT --- January 2000
** (Maurice.Szmurlo@info.unicaen.fr)
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
---------------------------------------------------------------------------
Parts od this code are inspired by 'pbmtowbmp.c' and 'wbmptopbm.c' by
Terje Sannum <terje@looplab.com>.
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
**
-------------------------------------------------------------------------- */
==============================================================================
/*
* gd_topal, adapted from jquant2.c
*
* Copyright (C) 1991-1996, Thomas G. Lane.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
* This file contains 2-pass color quantization (color mapping) routines.
* These routines provide selection of a custom color map for an image,
* followed by mapping of the image to that color map, with optional
* Floyd-Steinberg dithering.
* It is also possible to use just the second pass to map to an arbitrary
* externally-given color map.
*
* Note: ordered dithering is not supported, since there isn't any fast
* way to compute intercolor distances; it's unclear that ordered dither's
* fundamental assumptions even hold with an irregularly spaced color map.
*/
==============================================================================