xref: /plan9/sys/src/cmd/gs/jpeg/rdgif.c (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
17dd7cddfSDavid du Colombier /*
27dd7cddfSDavid du Colombier  * rdgif.c
37dd7cddfSDavid du Colombier  *
4*593dc095SDavid du Colombier  * Copyright (C) 1991-1997, Thomas G. Lane.
57dd7cddfSDavid du Colombier  * This file is part of the Independent JPEG Group's software.
67dd7cddfSDavid du Colombier  * For conditions of distribution and use, see the accompanying README file.
77dd7cddfSDavid du Colombier  *
87dd7cddfSDavid du Colombier  * This file contains routines to read input images in GIF format.
97dd7cddfSDavid du Colombier  *
10*593dc095SDavid du Colombier  *****************************************************************************
11*593dc095SDavid du Colombier  * NOTE: to avoid entanglements with Unisys' patent on LZW compression,      *
12*593dc095SDavid du Colombier  * the ability to read GIF files has been removed from the IJG distribution. *
13*593dc095SDavid du Colombier  * Sorry about that.                                                         *
14*593dc095SDavid du Colombier  *****************************************************************************
157dd7cddfSDavid du Colombier  *
16*593dc095SDavid du Colombier  * We are required to state that
177dd7cddfSDavid du Colombier  *    "The Graphics Interchange Format(c) is the Copyright property of
187dd7cddfSDavid du Colombier  *    CompuServe Incorporated. GIF(sm) is a Service Mark property of
197dd7cddfSDavid du Colombier  *    CompuServe Incorporated."
207dd7cddfSDavid du Colombier  */
217dd7cddfSDavid du Colombier 
227dd7cddfSDavid du Colombier #include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
237dd7cddfSDavid du Colombier 
247dd7cddfSDavid du Colombier #ifdef GIF_SUPPORTED
257dd7cddfSDavid du Colombier 
267dd7cddfSDavid du Colombier /*
277dd7cddfSDavid du Colombier  * The module selection routine for GIF format input.
287dd7cddfSDavid du Colombier  */
297dd7cddfSDavid du Colombier 
307dd7cddfSDavid du Colombier GLOBAL(cjpeg_source_ptr)
jinit_read_gif(j_compress_ptr cinfo)317dd7cddfSDavid du Colombier jinit_read_gif (j_compress_ptr cinfo)
327dd7cddfSDavid du Colombier {
33*593dc095SDavid du Colombier   fprintf(stderr, "GIF input is unsupported for legal reasons.  Sorry.\n");
34*593dc095SDavid du Colombier   exit(EXIT_FAILURE);
35*593dc095SDavid du Colombier   return NULL;			/* keep compiler happy */
367dd7cddfSDavid du Colombier }
377dd7cddfSDavid du Colombier 
387dd7cddfSDavid du Colombier #endif /* GIF_SUPPORTED */
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