Imported Upstream version 1.8.3

1 files changed, 304 insertions, 0 deletions

diff --git a/tiff/libtiff/tif_compress.c b/tiff/libtiff/tif_compress.c
new file mode 100755
index 0000000..20e72fd
--- /dev/null
+++ b/tiff/libtiff/tif_compress.c
@@ -0,0 +1,304 @@
+/* $Id: tif_compress.c,v 1.22 2010-03-10 18:56:48 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
+ *
+ * Compression Scheme Configuration Support.
+ */
+#include "tiffiop.h"
+
+static int
+TIFFNoEncode(TIFF* tif, const char* method)
+{
+	const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);
+
+	if (c) {
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%s %s encoding is not implemented",
+			     c->name, method);
+	} else {
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			"Compression scheme %u %s encoding is not implemented",
+			     tif->tif_dir.td_compression, method);
+	}
+	return (-1);
+}
+
+int
+_TIFFNoRowEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoEncode(tif, "scanline"));
+}
+
+int
+_TIFFNoStripEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoEncode(tif, "strip"));
+}
+
+int
+_TIFFNoTileEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoEncode(tif, "tile"));
+}
+
+static int
+TIFFNoDecode(TIFF* tif, const char* method)
+{
+	const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);
+
+	if (c)
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%s %s decoding is not implemented",
+			     c->name, method);
+	else
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "Compression scheme %u %s decoding is not implemented",
+			     tif->tif_dir.td_compression, method);
+	return (-1);
+}
+
+int
+_TIFFNoFixupTags(TIFF* tif)
+{
+	(void) tif;
+	return (1);
+}
+
+int
+_TIFFNoRowDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoDecode(tif, "scanline"));
+}
+
+int
+_TIFFNoStripDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoDecode(tif, "strip"));
+}
+
+int
+_TIFFNoTileDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s)
+{
+	(void) pp; (void) cc; (void) s;
+	return (TIFFNoDecode(tif, "tile"));
+}
+
+int
+_TIFFNoSeek(TIFF* tif, uint32 off)
+{
+	(void) off;
+	TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+		     "Compression algorithm does not support random access");
+	return (0);
+}
+
+int
+_TIFFNoPreCode(TIFF* tif, uint16 s)
+{
+	(void) tif; (void) s;
+	return (1);
+}
+
+static int _TIFFtrue(TIFF* tif) { (void) tif; return (1); }
+static void _TIFFvoid(TIFF* tif) { (void) tif; }
+
+void
+_TIFFSetDefaultCompressionState(TIFF* tif)
+{
+	tif->tif_fixuptags = _TIFFNoFixupTags; 
+	tif->tif_decodestatus = TRUE;
+	tif->tif_setupdecode = _TIFFtrue;
+	tif->tif_predecode = _TIFFNoPreCode;
+	tif->tif_decoderow = _TIFFNoRowDecode;  
+	tif->tif_decodestrip = _TIFFNoStripDecode;
+	tif->tif_decodetile = _TIFFNoTileDecode;  
+	tif->tif_encodestatus = TRUE;
+	tif->tif_setupencode = _TIFFtrue;
+	tif->tif_preencode = _TIFFNoPreCode;
+	tif->tif_postencode = _TIFFtrue;
+	tif->tif_encoderow = _TIFFNoRowEncode;
+	tif->tif_encodestrip = _TIFFNoStripEncode;  
+	tif->tif_encodetile = _TIFFNoTileEncode;  
+	tif->tif_close = _TIFFvoid;
+	tif->tif_seek = _TIFFNoSeek;
+	tif->tif_cleanup = _TIFFvoid;
+	tif->tif_defstripsize = _TIFFDefaultStripSize;
+	tif->tif_deftilesize = _TIFFDefaultTileSize;
+	tif->tif_flags &= ~(TIFF_NOBITREV|TIFF_NOREADRAW);
+}
+
+int
+TIFFSetCompressionScheme(TIFF* tif, int scheme)
+{
+	const TIFFCodec *c = TIFFFindCODEC((uint16) scheme);
+
+	_TIFFSetDefaultCompressionState(tif);
+	/*
+	 * Don't treat an unknown compression scheme as an error.
+	 * This permits applications to open files with data that
+	 * the library does not have builtin support for, but which
+	 * may still be meaningful.
+	 */
+	return (c ? (*c->init)(tif, scheme) : 1);
+}
+
+/*
+ * Other compression schemes may be registered.  Registered
+ * schemes can also override the builtin versions provided
+ * by this library.
+ */
+typedef struct _codec {
+	struct _codec* next;
+	TIFFCodec* info;
+} codec_t;
+static codec_t* registeredCODECS = NULL;
+
+const TIFFCodec*
+TIFFFindCODEC(uint16 scheme)
+{
+	const TIFFCodec* c;
+	codec_t* cd;
+
+	for (cd = registeredCODECS; cd; cd = cd->next)
+		if (cd->info->scheme == scheme)
+			return ((const TIFFCodec*) cd->info);
+	for (c = _TIFFBuiltinCODECS; c->name; c++)
+		if (c->scheme == scheme)
+			return (c);
+	return ((const TIFFCodec*) 0);
+}
+
+TIFFCodec*
+TIFFRegisterCODEC(uint16 scheme, const char* name, TIFFInitMethod init)
+{
+	codec_t* cd = (codec_t*)
+	    _TIFFmalloc((tmsize_t)(sizeof (codec_t) + sizeof (TIFFCodec) + strlen(name)+1));
+
+	if (cd != NULL) {
+		cd->info = (TIFFCodec*) ((uint8*) cd + sizeof (codec_t));
+		cd->info->name = (char*)
+		    ((uint8*) cd->info + sizeof (TIFFCodec));
+		strcpy(cd->info->name, name);
+		cd->info->scheme = scheme;
+		cd->info->init = init;
+		cd->next = registeredCODECS;
+		registeredCODECS = cd;
+	} else {
+		TIFFErrorExt(0, "TIFFRegisterCODEC",
+		    "No space to register compression scheme %s", name);
+		return NULL;
+	}
+	return (cd->info);
+}
+
+void
+TIFFUnRegisterCODEC(TIFFCodec* c)
+{
+	codec_t* cd;
+	codec_t** pcd;
+
+	for (pcd = &registeredCODECS; (cd = *pcd); pcd = &cd->next)
+		if (cd->info == c) {
+			*pcd = cd->next;
+			_TIFFfree(cd);
+			return;
+		}
+	TIFFErrorExt(0, "TIFFUnRegisterCODEC",
+	    "Cannot remove compression scheme %s; not registered", c->name);
+}
+
+/************************************************************************/
+/*                       TIFFGetConfisuredCODECs()                      */
+/************************************************************************/
+
+/**
+ * Get list of configured codecs, both built-in and registered by user.
+ * Caller is responsible to free this structure.
+ * 
+ * @return returns array of TIFFCodec records (the last record should be NULL)
+ * or NULL if function failed.
+ */
+
+TIFFCodec*
+TIFFGetConfiguredCODECs()
+{
+	int i = 1;
+	codec_t *cd;
+	const TIFFCodec* c;
+	TIFFCodec* codecs = NULL;
+	TIFFCodec* new_codecs;
+
+	for (cd = registeredCODECS; cd; cd = cd->next) {
+		new_codecs = (TIFFCodec *)
+			_TIFFrealloc(codecs, i * sizeof(TIFFCodec));
+		if (!new_codecs) {
+			_TIFFfree (codecs);
+			return NULL;
+		}
+		codecs = new_codecs;
+		_TIFFmemcpy(codecs + i - 1, cd, sizeof(TIFFCodec));
+		i++;
+	}
+	for (c = _TIFFBuiltinCODECS; c->name; c++) {
+		if (TIFFIsCODECConfigured(c->scheme)) {
+			new_codecs = (TIFFCodec *)
+				_TIFFrealloc(codecs, i * sizeof(TIFFCodec));
+			if (!new_codecs) {
+				_TIFFfree (codecs);
+				return NULL;
+			}
+			codecs = new_codecs;
+			_TIFFmemcpy(codecs + i - 1, (const void*)c, sizeof(TIFFCodec));
+			i++;
+		}
+	}
+
+	new_codecs = (TIFFCodec *) _TIFFrealloc(codecs, i * sizeof(TIFFCodec));
+	if (!new_codecs) {
+		_TIFFfree (codecs);
+		return NULL;
+	}
+	codecs = new_codecs;
+	_TIFFmemset(codecs + i - 1, 0, sizeof(TIFFCodec));
+
+	return codecs;
+}
+
+/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */