remove unused sources

1 files changed, 0 insertions, 300 deletions

diff --git a/tiff/libtiff/tif_packbits.c b/tiff/libtiff/tif_packbits.c
deleted file mode 100644
index ee095f5..0000000
--- a/tiff/libtiff/tif_packbits.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/* $Id: tif_packbits.c,v 1.13.2.2 2010-06-08 18:50:42 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.
- */
-
-#include "tiffiop.h"
-#ifdef PACKBITS_SUPPORT
-/*
- * TIFF Library.
- *
- * PackBits Compression Algorithm Support
- */
-#include <stdio.h>
-
-static int
-PackBitsPreEncode(TIFF* tif, tsample_t s)
-{
-	(void) s;
-
-        if (!(tif->tif_data = (tidata_t)_TIFFmalloc(sizeof(tsize_t))))
-		return (0);
-	/*
-	 * Calculate the scanline/tile-width size in bytes.
-	 */
-	if (isTiled(tif))
-		*(tsize_t*)tif->tif_data = TIFFTileRowSize(tif);
-	else
-		*(tsize_t*)tif->tif_data = TIFFScanlineSize(tif);
-	return (1);
-}
-
-static int
-PackBitsPostEncode(TIFF* tif)
-{
-        if (tif->tif_data)
-            _TIFFfree(tif->tif_data);
-	return (1);
-}
-
-/*
- * NB: tidata is the type representing *(tidata_t);
- *     if tidata_t is made signed then this type must
- *     be adjusted accordingly.
- */
-typedef unsigned char tidata;
-
-/*
- * Encode a run of pixels.
- */
-static int
-PackBitsEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s)
-{
-	unsigned char* bp = (unsigned char*) buf;
-	tidata_t op, ep, lastliteral;
-	long n, slop;
-	int b;
-	enum { BASE, LITERAL, RUN, LITERAL_RUN } state;
-
-	(void) s;
-	op = tif->tif_rawcp;
-	ep = tif->tif_rawdata + tif->tif_rawdatasize;
-	state = BASE;
-	lastliteral = 0;
-	while (cc > 0) {
-		/*
-		 * Find the longest string of identical bytes.
-		 */
-		b = *bp++, cc--, n = 1;
-		for (; cc > 0 && b == *bp; cc--, bp++)
-			n++;
-	again:
-		if (op + 2 >= ep) {		/* insure space for new data */
-			/*
-			 * Be careful about writing the last
-			 * literal.  Must write up to that point
-			 * and then copy the remainder to the
-			 * front of the buffer.
-			 */
-			if (state == LITERAL || state == LITERAL_RUN) {
-				slop = op - lastliteral;
-				tif->tif_rawcc += lastliteral - tif->tif_rawcp;
-				if (!TIFFFlushData1(tif))
-					return (-1);
-				op = tif->tif_rawcp;
-				while (slop-- > 0)
-					*op++ = *lastliteral++;
-				lastliteral = tif->tif_rawcp;
-			} else {
-				tif->tif_rawcc += op - tif->tif_rawcp;
-				if (!TIFFFlushData1(tif))
-					return (-1);
-				op = tif->tif_rawcp;
-			}
-		}
-		switch (state) {
-		case BASE:		/* initial state, set run/literal */
-			if (n > 1) {
-				state = RUN;
-				if (n > 128) {
-					*op++ = (tidata) -127;
-					*op++ = (tidataval_t) b;
-					n -= 128;
-					goto again;
-				}
-				*op++ = (tidataval_t)(-(n-1));
-				*op++ = (tidataval_t) b;
-			} else {
-				lastliteral = op;
-				*op++ = 0;
-				*op++ = (tidataval_t) b;
-				state = LITERAL;
-			}
-			break;
-		case LITERAL:		/* last object was literal string */
-			if (n > 1) {
-				state = LITERAL_RUN;
-				if (n > 128) {
-					*op++ = (tidata) -127;
-					*op++ = (tidataval_t) b;
-					n -= 128;
-					goto again;
-				}
-				*op++ = (tidataval_t)(-(n-1));	/* encode run */
-				*op++ = (tidataval_t) b;
-			} else {			/* extend literal */
-				if (++(*lastliteral) == 127)
-					state = BASE;
-				*op++ = (tidataval_t) b;
-			}
-			break;
-		case RUN:		/* last object was run */
-			if (n > 1) {
-				if (n > 128) {
-					*op++ = (tidata) -127;
-					*op++ = (tidataval_t) b;
-					n -= 128;
-					goto again;
-				}
-				*op++ = (tidataval_t)(-(n-1));
-				*op++ = (tidataval_t) b;
-			} else {
-				lastliteral = op;
-				*op++ = 0;
-				*op++ = (tidataval_t) b;
-				state = LITERAL;
-			}
-			break;
-		case LITERAL_RUN:	/* literal followed by a run */
-			/*
-			 * Check to see if previous run should
-			 * be converted to a literal, in which
-			 * case we convert literal-run-literal
-			 * to a single literal.
-			 */
-			if (n == 1 && op[-2] == (tidata) -1 &&
-			    *lastliteral < 126) {
-				state = (((*lastliteral) += 2) == 127 ?
-				    BASE : LITERAL);
-				op[-2] = op[-1];	/* replicate */
-			} else
-				state = RUN;
-			goto again;
-		}
-	}
-	tif->tif_rawcc += op - tif->tif_rawcp;
-	tif->tif_rawcp = op;
-	return (1);
-}
-
-/*
- * Encode a rectangular chunk of pixels.  We break it up
- * into row-sized pieces to insure that encoded runs do
- * not span rows.  Otherwise, there can be problems with
- * the decoder if data is read, for example, by scanlines
- * when it was encoded by strips.
- */
-static int
-PackBitsEncodeChunk(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
-{
-	tsize_t rowsize = *(tsize_t*)tif->tif_data;
-
-	while ((long)cc > 0) {
-		int	chunk = rowsize;
-		
-		if( cc < chunk )
-		    chunk = cc;
-
-		if (PackBitsEncode(tif, bp, chunk, s) < 0)
-		    return (-1);
-		bp += chunk;
-		cc -= chunk;
-	}
-	return (1);
-}
-
-static int
-PackBitsDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s)
-{
-	char *bp;
-	tsize_t cc;
-	long n;
-	int b;
-
-	(void) s;
-	bp = (char*) tif->tif_rawcp;
-	cc = tif->tif_rawcc;
-	while (cc > 0 && (long)occ > 0) {
-		n = (long) *bp++, cc--;
-		/*
-		 * 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;
-                        if( occ < n )
-                        {
-							TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
-                                        "PackBitsDecode: discarding %ld bytes "
-                                        "to avoid buffer overrun",
-                                        n - occ);
-                            n = occ;
-                        }
-			occ -= n;
-			b = *bp++, cc--;
-			while (n-- > 0)
-				*op++ = (tidataval_t) b;
-		} else {		/* copy next n+1 bytes literally */
-			if (occ < n + 1)
-                        {
-                            TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
-                                        "PackBitsDecode: discarding %ld bytes "
-                                        "to avoid buffer overrun",
-                                        n - occ + 1);
-                            n = occ - 1;
-                        }
-                        _TIFFmemcpy(op, bp, ++n);
-			op += n; occ -= n;
-			bp += n; cc -= n;
-		}
-	}
-	tif->tif_rawcp = (tidata_t) bp;
-	tif->tif_rawcc = cc;
-	if (occ > 0) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
-		    "PackBitsDecode: Not enough data for scanline %ld",
-		    (long) tif->tif_row);
-		return (0);
-	}
-	return (1);
-}
-
-int
-TIFFInitPackBits(TIFF* tif, int scheme)
-{
-	(void) scheme;
-	tif->tif_decoderow = PackBitsDecode;
-	tif->tif_decodestrip = PackBitsDecode;
-	tif->tif_decodetile = PackBitsDecode;
-	tif->tif_preencode = PackBitsPreEncode;
-        tif->tif_postencode = PackBitsPostEncode;
-	tif->tif_encoderow = PackBitsEncode;
-	tif->tif_encodestrip = PackBitsEncodeChunk;
-	tif->tif_encodetile = PackBitsEncodeChunk;
-	return (1);
-}
-#endif /* PACKBITS_SUPPORT */
-
-/* vim: set ts=8 sts=8 sw=8 noet: */
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 8
- * fill-column: 78
- * End:
- */