Initial import of argyll version 1.5.1-8debian/1.5.1-8

1 files changed, 295 insertions, 0 deletions

diff --git a/tiff/libtiff/tif_stream.cxx b/tiff/libtiff/tif_stream.cxx
new file mode 100644
index 0000000..2a2351b
--- /dev/null
+++ b/tiff/libtiff/tif_stream.cxx
@@ -0,0 +1,295 @@
+/* $Id: tif_stream.cxx,v 1.6.2.1 2009-01-01 00:10:43 bfriesen Exp $ */
+
+/*
+ * Copyright (c) 1988-1996 Sam Leffler
+ * Copyright (c) 1991-1996 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 UNIX-specific Routines.
+ */
+#include "tiffiop.h"
+#include <iostream>
+
+#ifndef __VMS
+using namespace std;
+#endif
+
+class tiffis_data
+{
+  public:
+
+	istream	*myIS;
+        long	myStreamStartPos;
+};
+
+class tiffos_data
+{
+  public:
+
+	ostream	*myOS;
+	long	myStreamStartPos;
+};
+
+static tsize_t
+_tiffosReadProc(thandle_t, tdata_t, tsize_t)
+{
+        return 0;
+}
+
+static tsize_t
+_tiffisReadProc(thandle_t fd, tdata_t buf, tsize_t size)
+{
+        tiffis_data	*data = (tiffis_data *)fd;
+
+        data->myIS->read((char *)buf, (int)size);
+
+        return data->myIS->gcount();
+}
+
+static tsize_t
+_tiffosWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
+{
+	tiffos_data	*data = (tiffos_data *)fd;
+	ostream		*os = data->myOS;
+	int		pos = os->tellp();
+
+	os->write((const char *)buf, size);
+
+	return ((int)os->tellp()) - pos;
+}
+
+static tsize_t
+_tiffisWriteProc(thandle_t, tdata_t, tsize_t)
+{
+	return 0;
+}
+
+static toff_t
+_tiffosSeekProc(thandle_t fd, toff_t off, int whence)
+{
+	tiffos_data	*data = (tiffos_data *)fd;
+	ostream	*os = data->myOS;
+
+	// if the stream has already failed, don't do anything
+	if( os->fail() )
+		return os->tellp();
+
+	switch(whence) {
+	case SEEK_SET:
+	    os->seekp(data->myStreamStartPos + off, ios::beg);
+		break;
+	case SEEK_CUR:
+		os->seekp(off, ios::cur);
+		break;
+	case SEEK_END:
+		os->seekp(off, ios::end);
+		break;
+	}
+
+	// Attempt to workaround problems with seeking past the end of the
+	// stream.  ofstream doesn't have a problem with this but
+	// ostrstream/ostringstream does. In that situation, add intermediate
+	// '\0' characters.
+	if( os->fail() ) {
+#ifdef __VMS
+		int		old_state;
+#else
+		ios::iostate	old_state;
+#endif
+		toff_t		origin=0;
+
+		old_state = os->rdstate();
+		// reset the fail bit or else tellp() won't work below
+		os->clear(os->rdstate() & ~ios::failbit);
+		switch( whence ) {
+			case SEEK_SET:
+				origin = data->myStreamStartPos;
+				break;
+			case SEEK_CUR:
+				origin = os->tellp();
+				break;
+			case SEEK_END:
+				os->seekp(0, ios::end);
+				origin = os->tellp();
+				break;
+		}
+		// restore original stream state
+		os->clear(old_state);	
+
+		// only do something if desired seek position is valid
+		if( origin + off > data->myStreamStartPos ) {
+			toff_t	num_fill;
+
+			// clear the fail bit 
+			os->clear(os->rdstate() & ~ios::failbit);
+
+			// extend the stream to the expected size
+			os->seekp(0, ios::end);
+			num_fill = origin + off - (toff_t)os->tellp();
+			for( toff_t i = 0; i < num_fill; i++ )
+				os->put('\0');
+
+			// retry the seek
+			os->seekp(origin + off, ios::beg);
+		}
+	}
+
+	return os->tellp();
+}
+
+static toff_t
+_tiffisSeekProc(thandle_t fd, toff_t off, int whence)
+{
+	tiffis_data	*data = (tiffis_data *)fd;
+
+	switch(whence) {
+	case SEEK_SET:
+		data->myIS->seekg(data->myStreamStartPos + off, ios::beg);
+		break;
+	case SEEK_CUR:
+		data->myIS->seekg(off, ios::cur);
+		break;
+	case SEEK_END:
+		data->myIS->seekg(off, ios::end);
+		break;
+	}
+
+	return ((long)data->myIS->tellg()) - data->myStreamStartPos;
+}
+
+static toff_t
+_tiffosSizeProc(thandle_t fd)
+{
+	tiffos_data	*data = (tiffos_data *)fd;
+	ostream		*os = data->myOS;
+	toff_t		pos = os->tellp();
+	toff_t		len;
+
+	os->seekp(0, ios::end);
+	len = os->tellp();
+	os->seekp(pos);
+
+	return len;
+}
+
+static toff_t
+_tiffisSizeProc(thandle_t fd)
+{
+	tiffis_data	*data = (tiffis_data *)fd;
+	int		pos = data->myIS->tellg();
+	int		len;
+
+	data->myIS->seekg(0, ios::end);
+	len = data->myIS->tellg();
+	data->myIS->seekg(pos);
+
+	return len;
+}
+
+static int
+_tiffosCloseProc(thandle_t fd)
+{
+	// Our stream was not allocated by us, so it shouldn't be closed by us.
+	delete (tiffos_data *)fd;
+	return 0;
+}
+
+static int
+_tiffisCloseProc(thandle_t fd)
+{
+	// Our stream was not allocated by us, so it shouldn't be closed by us.
+	delete (tiffis_data *)fd;
+	return 0;
+}
+
+static int
+_tiffDummyMapProc(thandle_t , tdata_t* , toff_t* )
+{
+	return (0);
+}
+
+static void
+_tiffDummyUnmapProc(thandle_t , tdata_t , toff_t )
+{
+}
+
+/*
+ * Open a TIFF file descriptor for read/writing.
+ */
+static TIFF*
+_tiffStreamOpen(const char* name, const char* mode, void *fd)
+{
+	TIFF*	tif;
+
+	if( strchr(mode, 'w') ) {
+		tiffos_data	*data = new tiffos_data;
+		data->myOS = (ostream *)fd;
+		data->myStreamStartPos = data->myOS->tellp();
+
+		// Open for writing.
+		tif = TIFFClientOpen(name, mode,
+				(thandle_t) data,
+				_tiffosReadProc, _tiffosWriteProc,
+				_tiffosSeekProc, _tiffosCloseProc,
+				_tiffosSizeProc,
+				_tiffDummyMapProc, _tiffDummyUnmapProc);
+	} else {
+		tiffis_data	*data = new tiffis_data;
+		data->myIS = (istream *)fd;
+		data->myStreamStartPos = data->myIS->tellg();
+		// Open for reading.
+		tif = TIFFClientOpen(name, mode,
+				(thandle_t) data,
+				_tiffisReadProc, _tiffisWriteProc,
+				_tiffisSeekProc, _tiffisCloseProc,
+				_tiffisSizeProc,
+				_tiffDummyMapProc, _tiffDummyUnmapProc);
+	}
+
+	return (tif);
+}
+
+TIFF*
+TIFFStreamOpen(const char* name, ostream *os)
+{
+	// If os is either a ostrstream or ostringstream, and has no data
+	// written to it yet, then tellp() will return -1 which will break us.
+	// We workaround this by writing out a dummy character and
+	// then seek back to the beginning.
+	if( !os->fail() && (int)os->tellp() < 0 ) {
+		*os << '\0';
+		os->seekp(0);
+	}
+
+	// NB: We don't support mapped files with streams so add 'm'
+	return _tiffStreamOpen(name, "wm", os);
+}
+
+TIFF*
+TIFFStreamOpen(const char* name, istream *is)
+{
+	// NB: We don't support mapped files with streams so add 'm'
+	return _tiffStreamOpen(name, "rm", is);
+}
+
+/* vim: set ts=8 sts=8 sw=8 noet: */