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/*
* 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.
*/
/*
* TIFF Library
*
* Compression Scheme Configuration Support.
*/
#include "tiffioP.h"
#if USE_PROTOTYPES
extern int TIFFInitDumpMode(TIFF*);
#ifdef PACKBITS_SUPPORT
extern int TIFFInitPackBits(TIFF*);
#endif
#ifdef CCITT_SUPPORT
extern int TIFFInitCCITTRLE(TIFF*), TIFFInitCCITTRLEW(TIFF*);
extern int TIFFInitCCITTFax3(TIFF*), TIFFInitCCITTFax4(TIFF*);
#endif
#ifdef THUNDER_SUPPORT
extern int TIFFInitThunderScan(TIFF*);
#endif
#ifdef NEXT_SUPPORT
extern int TIFFInitNeXT(TIFF*);
#endif
#ifdef LZW_SUPPORT
extern int TIFFInitLZW(TIFF*);
#endif
#ifdef JPEG_SUPPORT
extern int TIFFInitJPEG(TIFF*);
#endif
#else
extern int TIFFInitDumpMode();
#ifdef PACKBITS_SUPPORT
extern int TIFFInitPackBits();
#endif
#ifdef CCITT_SUPPORT
extern int TIFFInitCCITTRLE(), TIFFInitCCITTRLEW();
extern int TIFFInitCCITTFax3(), TIFFInitCCITTFax4();
#endif
#ifdef THUNDER_SUPPORT
extern int TIFFInitThunderScan();
#endif
#ifdef NEXT_SUPPORT
extern int TIFFInitNeXT();
#endif
#ifdef LZW_SUPPORT
extern int TIFFInitLZW();
#endif
#ifdef JPEG_SUPPORT
extern int TIFFInitJPEG();
#endif
#endif
struct cscheme {
char* name;
int scheme;
int (*init)();
};
static const struct cscheme CompressionSchemes[] = {
{ "Null", COMPRESSION_NONE, TIFFInitDumpMode },
#ifdef LZW_SUPPORT
{ "LZW", COMPRESSION_LZW, TIFFInitLZW },
#endif
#ifdef PACKBITS_SUPPORT
{ "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits },
#endif
#ifdef THUNDER_SUPPORT
{ "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan },
#endif
#ifdef NEXT_SUPPORT
{ "NeXT", COMPRESSION_NEXT, TIFFInitNeXT },
#endif
#ifdef JPEG_SUPPORT
{ "JPEG", COMPRESSION_JPEG, TIFFInitJPEG },
#endif
#ifdef CCITT_SUPPORT
{ "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE },
{ "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW },
{ "CCITT Group3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 },
{ "CCITT Group4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 },
#endif
};
#define NSCHEMES (sizeof (CompressionSchemes) / sizeof (CompressionSchemes[0]))
static struct cscheme const *
findScheme(scheme)
int scheme;
{
register struct cscheme const *c;
for (c = CompressionSchemes; c < &CompressionSchemes[NSCHEMES]; c++)
if (c->scheme == scheme)
return (c);
return ((struct cscheme const *)0);
}
static int
TIFFNoEncode(tif, method)
TIFF *tif;
char *method;
{
struct cscheme const *c = findScheme(tif->tif_dir.td_compression);
TIFFError(tif->tif_name,
"%s %s encoding is not implemented", c->name, method);
return (-1);
}
int
TIFFNoRowEncode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoEncode(tif, "scanline"));
}
int
TIFFNoStripEncode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoEncode(tif, "strip"));
}
int
TIFFNoTileEncode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoEncode(tif, "tile"));
}
int
TIFFNoDecode(tif, method)
TIFF *tif;
char *method;
{
struct cscheme const *c = findScheme(tif->tif_dir.td_compression);
TIFFError(tif->tif_name,
"%s %s decoding is not implemented", c->name, method);
return (-1);
}
int
TIFFNoRowDecode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoDecode(tif, "scanline"));
}
int
TIFFNoStripDecode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoDecode(tif, "strip"));
}
int
TIFFNoTileDecode(tif, pp, cc, s)
TIFF *tif;
u_char *pp;
int cc;
u_int s;
{
return (TIFFNoDecode(tif, "tile"));
}
TIFFSetCompressionScheme(tif, scheme)
TIFF *tif;
int scheme;
{
struct cscheme const *c = findScheme(scheme);
if (!c) {
TIFFError(tif->tif_name,
"Unknown data compression algorithm %u (0x%x)",
scheme, scheme);
return (0);
}
tif->tif_predecode = NULL;
tif->tif_decoderow = TIFFNoRowDecode;
tif->tif_decodestrip = TIFFNoStripDecode;
tif->tif_decodetile = TIFFNoTileDecode;
tif->tif_preencode = NULL;
tif->tif_postencode = NULL;
tif->tif_encoderow = TIFFNoRowEncode;
tif->tif_encodestrip = TIFFNoStripEncode;
tif->tif_encodetile = TIFFNoTileEncode;
tif->tif_close = NULL;
tif->tif_seek = NULL;
tif->tif_cleanup = NULL;
tif->tif_flags &= ~TIFF_NOBITREV;
tif->tif_options = 0;
return ((*c->init)(tif));
}
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