/* $Id: tif_codec.c,v 1.10.2.2 2010-06-08 18:50:41 bfriesen Exp $ */

/*

 * Copyright (c) 1988-1997 Sam Leffler

 * Copyright (c) 1991-1997 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.

 */

/*

 * TIFF Library

 *

 * Builtin Compression Scheme Configuration Support.

 */

#include "tiffiop.h"

static	int NotConfigured(TIFF*, int);

#ifndef	LZW_SUPPORT

#define	TIFFInitLZW		NotConfigured

#endif

#ifndef	PACKBITS_SUPPORT

#define	TIFFInitPackBits	NotConfigured

#endif

#ifndef	THUNDER_SUPPORT

#define	TIFFInitThunderScan	NotConfigured

#endif

#ifndef	NEXT_SUPPORT

#define	TIFFInitNeXT		NotConfigured

#endif

#ifndef	JPEG_SUPPORT

#define	TIFFInitJPEG		NotConfigured

#endif

#ifndef	OJPEG_SUPPORT

#define	TIFFInitOJPEG		NotConfigured

#endif

#ifndef	CCITT_SUPPORT

#define	TIFFInitCCITTRLE	NotConfigured

#define	TIFFInitCCITTRLEW	NotConfigured

#define	TIFFInitCCITTFax3	NotConfigured

#define	TIFFInitCCITTFax4	NotConfigured

#endif

#ifndef JBIG_SUPPORT

#define	TIFFInitJBIG		NotConfigured

#endif

#ifndef	ZIP_SUPPORT

#define	TIFFInitZIP		NotConfigured

#endif

#ifndef	PIXARLOG_SUPPORT

#define	TIFFInitPixarLog	NotConfigured

#endif

#ifndef LOGLUV_SUPPORT

#define TIFFInitSGILog		NotConfigured

#endif

/*

 * Compression schemes statically built into the library.

 */

#ifdef VMS

const TIFFCodec _TIFFBuiltinCODECS[] = {

#else

TIFFCodec _TIFFBuiltinCODECS[] = {

#endif

    { "None",		COMPRESSION_NONE,	TIFFInitDumpMode },

    { "LZW",		COMPRESSION_LZW,	TIFFInitLZW },

    { "PackBits",	COMPRESSION_PACKBITS,	TIFFInitPackBits },

    { "ThunderScan",	COMPRESSION_THUNDERSCAN,TIFFInitThunderScan },

    { "NeXT",		COMPRESSION_NEXT,	TIFFInitNeXT },

    { "JPEG",		COMPRESSION_JPEG,	TIFFInitJPEG },

    { "Old-style JPEG",	COMPRESSION_OJPEG,	TIFFInitOJPEG },

    { "CCITT RLE",	COMPRESSION_CCITTRLE,	TIFFInitCCITTRLE },

    { "CCITT RLE/W",	COMPRESSION_CCITTRLEW,	TIFFInitCCITTRLEW },

    { "CCITT Group 3",	COMPRESSION_CCITTFAX3,	TIFFInitCCITTFax3 },

    { "CCITT Group 4",	COMPRESSION_CCITTFAX4,	TIFFInitCCITTFax4 },

    { "ISO JBIG",	COMPRESSION_JBIG,	TIFFInitJBIG },

    { "Deflate",	COMPRESSION_DEFLATE,	TIFFInitZIP },

    { "AdobeDeflate",   COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP }, 

    { "PixarLog",	COMPRESSION_PIXARLOG,	TIFFInitPixarLog },

    { "SGILog",		COMPRESSION_SGILOG,	TIFFInitSGILog },

    { "SGILog24",	COMPRESSION_SGILOG24,	TIFFInitSGILog },

    { NULL,             0,                      NULL }

};

static int

_notConfigured(TIFF* tif)

{

	const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);

        char compression_code[20];

        sprintf( compression_code, "%d", tif->tif_dir.td_compression );

	TIFFErrorExt(tif->tif_clientdata, tif->tif_name,

                     "%s compression support is not configured", 

                     c ? c->name : compression_code );

	return (0);

}

static int

NotConfigured(TIFF* tif, int scheme)

{

    (void) scheme;

    tif->tif_decodestatus = FALSE;

    tif->tif_setupdecode = _notConfigured;

    tif->tif_encodestatus = FALSE;

    tif->tif_setupencode = _notConfigured;

    return (1);

}

/************************************************************************/

/*                       TIFFIsCODECConfigured()                        */

/************************************************************************/

/**

 * Check whether we have working codec for the specific coding scheme.

 * 

 * @return returns 1 if the codec is configured and working. Otherwise

 * 0 will be returned.

 */

int

TIFFIsCODECConfigured(uint16 scheme)

{

	const TIFFCodec* codec = TIFFFindCODEC(scheme);

	if(codec == NULL) {

            return 0;

        }

        if(codec->init == NULL) {

            return 0;

        }

	if(codec->init != NotConfigured){

            return 1;

        }

	return 0;

}

/*

 * Local Variables:

 * mode: c

 * c-basic-offset: 8

 * fill-column: 78

 * End:

 */