1 files changed, 105 insertions, 0 deletions
diff --git a/lib/tiffstream.hh b/lib/tiffstream.hh
new file mode 100644
index 0000000..657ca73
--- /dev/null
+++ b/lib/tiffstream.hh
@@ -0,0 +1,105 @@
+//  tiffstream.hh -- image streams producing TIFF files
+//  Copyright (C) 2008, 2009  SEIKO EPSON CORPORATION
+//
+//  This file is part of the 'iscan' program.
+//
+//  The 'iscan' program is free-ish software.
+//  You can redistribute it and/or modify it under the terms of the GNU
+//  General Public License as published by the Free Software Foundation;
+//  either version 2 of the License or at your option any later version.
+//
+//  This program is distributed in the hope that it will be useful, but
+//  WITHOUT ANY WARRANTY;  without even the implied warranty of FITNESS
+//  FOR A PARTICULAR PURPOSE or MERCHANTABILITY.
+//  See the GNU General Public License for more details.
+//
+//  You should have received a verbatim copy of the GNU General Public
+//  License along with this program; if not, write to:
+//
+//      Free Software Foundation, Inc.
+//      59 Temple Place, Suite 330
+//      Boston, MA  02111-1307  USA
+//
+//  As a special exception, the copyright holders give permission
+//  to link the code of this program with the esmod library and
+//  distribute linked combinations including the two.  You must obey
+//  the GNU General Public License in all respects for all of the
+//  code used other than esmod.
+
+
+#ifndef iscan_tiffstream_hh_included
+#define iscan_tiffstream_hh_included
+
+#ifndef __cplusplus
+#error "This is a C++ header file; use a C++ compiler to compile it."
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "imgstream.hh"
+
+#if HAVE_TIFFIO_H
+#include <tiffio.h>
+#include <cstdarg>              // for error and warning handlers
+#endif
+
+namespace iscan
+{
+  using std::string;
+
+  class tiffstream : public imgstream
+  {
+  public:
+    typedef basic_imgstream::byte_type byte_type;
+    typedef basic_imgstream::size_type size_type;
+
+    tiffstream (FILE *fp, const string& name);
+    virtual ~tiffstream (void);
+
+    virtual imgstream& write (const byte_type *line, size_type n);
+
+    virtual void next (void);
+
+    static bool is_usable (void);
+
+  private:
+    void set_tags (void);
+    void check_consistency (void) const;
+
+    void init (const string& name);
+
+    FILE *_stream;
+
+    static bool validate (lt_dlhandle h);
+    struct tiff_lib_handle
+    {
+      bool        is_usable;
+      string      message;
+      lt_dlhandle lib;
+
+#if HAVE_TIFFIO_H
+      fundecl (TIFF *, Open, const char *, const char *);
+      fundecl (TIFF *, FdOpen, const int, const char *, const char *);
+      fundecl (void, Close, TIFF *);
+      fundecl (int, WriteDirectory, TIFF *);
+      fundecl (int, WriteScanline, TIFF *, tdata_t, uint32, tsample_t);
+      fundecl (int, Flush, TIFF *);
+      fundecl (int, SetField, TIFF *, ttag_t, ...);
+      fundecl (TIFFErrorHandler, SetErrorHandler, TIFFErrorHandler);
+      fundecl (TIFFErrorHandler, SetWarningHandler, TIFFErrorHandler);
+#endif /* HAVE_TIFFIO_H */
+    };
+
+    static tiff_lib_handle *lib;
+
+#if HAVE_TIFFIO_H
+    TIFF   *_tiff;
+    uint32  _row;
+#endif
+  };
+
+} // namespace iscan
+
+#endif // iscan_tiffstream_hh_included