Imported Upstream version 1.8.0upstream/1.8.0

1 files changed, 0 insertions, 165 deletions

diff --git a/tiff/libtiff/tif_thunder.c b/tiff/libtiff/tif_thunder.c
deleted file mode 100644
index 8e7a125..0000000
--- a/tiff/libtiff/tif_thunder.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* $Id: tif_thunder.c,v 1.5.2.1 2010-06-08 18:50:43 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 THUNDER_SUPPORT
-/*
- * TIFF Library.
- *
- * ThunderScan 4-bit Compression Algorithm Support
- */
-
-/*
- * ThunderScan uses an encoding scheme designed for
- * 4-bit pixel values.  Data is encoded in bytes, with
- * each byte split into a 2-bit code word and a 6-bit
- * data value.  The encoding gives raw data, runs of
- * pixels, or pixel values encoded as a delta from the
- * previous pixel value.  For the latter, either 2-bit
- * or 3-bit delta values are used, with the deltas packed
- * into a single byte.
- */
-#define	THUNDER_DATA		0x3f	/* mask for 6-bit data */
-#define	THUNDER_CODE		0xc0	/* mask for 2-bit code word */
-/* code values */
-#define	THUNDER_RUN		0x00	/* run of pixels w/ encoded count */
-#define	THUNDER_2BITDELTAS	0x40	/* 3 pixels w/ encoded 2-bit deltas */
-#define	    DELTA2_SKIP		2	/* skip code for 2-bit deltas */
-#define	THUNDER_3BITDELTAS	0x80	/* 2 pixels w/ encoded 3-bit deltas */
-#define	    DELTA3_SKIP		4	/* skip code for 3-bit deltas */
-#define	THUNDER_RAW		0xc0	/* raw data encoded */
-
-static const int twobitdeltas[4] = { 0, 1, 0, -1 };
-static const int threebitdeltas[8] = { 0, 1, 2, 3, 0, -3, -2, -1 };
-
-#define	SETPIXEL(op, v) { \
-	lastpixel = (v) & 0xf; \
-	if (npixels++ & 1) \
-	    *op++ |= lastpixel; \
-	else \
-	    op[0] = (tidataval_t) (lastpixel << 4); \
-}
-
-static int
-ThunderDecode(TIFF* tif, tidata_t op, tsize_t maxpixels)
-{
-	register unsigned char *bp;
-	register tsize_t cc;
-	unsigned int lastpixel;
-	tsize_t npixels;
-
-	bp = (unsigned char *)tif->tif_rawcp;
-	cc = tif->tif_rawcc;
-	lastpixel = 0;
-	npixels = 0;
-	while (cc > 0 && npixels < maxpixels) {
-		int n, delta;
-
-		n = *bp++, cc--;
-		switch (n & THUNDER_CODE) {
-		case THUNDER_RUN:		/* pixel run */
-			/*
-			 * Replicate the last pixel n times,
-			 * where n is the lower-order 6 bits.
-			 */
-			if (npixels & 1) {
-				op[0] |= lastpixel;
-				lastpixel = *op++; npixels++; n--;
-			} else
-				lastpixel |= lastpixel << 4;
-			npixels += n;
-			if (npixels < maxpixels) {
-				for (; n > 0; n -= 2)
-					*op++ = (tidataval_t) lastpixel;
-			}
-			if (n == -1)
-				*--op &= 0xf0;
-			lastpixel &= 0xf;
-			break;
-		case THUNDER_2BITDELTAS:	/* 2-bit deltas */
-			if ((delta = ((n >> 4) & 3)) != DELTA2_SKIP)
-				SETPIXEL(op, lastpixel + twobitdeltas[delta]);
-			if ((delta = ((n >> 2) & 3)) != DELTA2_SKIP)
-				SETPIXEL(op, lastpixel + twobitdeltas[delta]);
-			if ((delta = (n & 3)) != DELTA2_SKIP)
-				SETPIXEL(op, lastpixel + twobitdeltas[delta]);
-			break;
-		case THUNDER_3BITDELTAS:	/* 3-bit deltas */
-			if ((delta = ((n >> 3) & 7)) != DELTA3_SKIP)
-				SETPIXEL(op, lastpixel + threebitdeltas[delta]);
-			if ((delta = (n & 7)) != DELTA3_SKIP)
-				SETPIXEL(op, lastpixel + threebitdeltas[delta]);
-			break;
-		case THUNDER_RAW:		/* raw data */
-			SETPIXEL(op, n);
-			break;
-		}
-	}
-	tif->tif_rawcp = (tidata_t) bp;
-	tif->tif_rawcc = cc;
-	if (npixels != maxpixels) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
-		    "ThunderDecode: %s data at scanline %ld (%lu != %lu)",
-		    npixels < maxpixels ? "Not enough" : "Too much",
-		    (long) tif->tif_row, (long) npixels, (long) maxpixels);
-		return (0);
-	}
-	return (1);
-}
-
-static int
-ThunderDecodeRow(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s)
-{
-	tidata_t row = buf;
-	
-	(void) s;
-	while ((long)occ > 0) {
-		if (!ThunderDecode(tif, row, tif->tif_dir.td_imagewidth))
-			return (0);
-		occ -= tif->tif_scanlinesize;
-		row += tif->tif_scanlinesize;
-	}
-	return (1);
-}
-
-int
-TIFFInitThunderScan(TIFF* tif, int scheme)
-{
-	(void) scheme;
-	tif->tif_decoderow = ThunderDecodeRow;
-	tif->tif_decodestrip = ThunderDecodeRow;
-	return (1);
-}
-#endif /* THUNDER_SUPPORT */
-
-/* vim: set ts=8 sts=8 sw=8 noet: */
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 8
- * fill-column: 78
- * End:
- */