Comments / tweaks.

[libdcp.git] / src / util.h

diff --git a/src/util.h b/src/util.h
index 7056db6a372fe4def5fbe0cce8baa83b4a6a5e0a..2bfeb60ab9f3a5845a5a75d17802933fefd5ea1d 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,40 +17,95 @@
 
 */
 
+#ifndef LIBDCP_UTIL_H
+#define LIBDCP_UTIL_H
+
 /** @file  src/util.h
  *  @brief Utility methods.
  */
 
+#include "types.h"
+#include <boost/shared_ptr.hpp>
+#include <boost/function.hpp>
+#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/optional.hpp>
+#include <openjpeg.h>
 #include <string>
 #include <stdint.h>
-#include <boost/signals2.hpp>
-#include <openjpeg.h>
-#include "types.h"
 
-namespace libdcp {
+namespace xmlpp {
+       class Element;
+}
 
-class ARGBFrame;       
-       
-/** Create a UUID.
- *  @return UUID.
- */
-extern std::string make_uuid ();
+namespace dcp {
 
-/** Create a digest for a file.
- *  @param filename File name.
- *  @param progress If non-0, a signal which will be emitted periodically to update
- *  progress; the parameter will start at 0.5 and proceed to 1.
- *  @return Digest.
+class ARGBFrame;
+class CertificateChain;
+class GammaLUT;
+class XYZFrame;
+
+/** @struct Size
+ *  @brief The integer, two-dimensional size of something.
  */
-extern std::string make_digest (std::string filename, boost::signals2::signal<void (float)>* progress);
+struct Size
+{
+       Size ()
+               : width (0)
+               , height (0)
+       {}
+
+       Size (int w, int h)
+               : width (w)
+               , height (h)
+       {}
 
+       float ratio () const {
+               return float (width) / height;
+       }
+       
+       int width;
+       int height;
+};
+       
+extern bool operator== (Size const & a, Size const & b);
+extern bool operator!= (Size const & a, Size const & b);
+
+extern std::string make_uuid ();
+extern std::string make_digest (boost::filesystem::path filename, boost::function<void (float)> *);
 extern std::string content_kind_to_string (ContentKind kind);
 extern ContentKind content_kind_from_string (std::string kind);
-extern bool starts_with (std::string big, std::string little);
-extern bool ends_with (std::string big, std::string little);
 extern bool empty_or_white_space (std::string s);
+extern boost::shared_ptr<XYZFrame> decompress_j2k (uint8_t* data, int64_t size, int reduce);
+
+extern void init ();
 
-extern opj_image_t* decompress_j2k (uint8_t* data, int64_t size, int reduce);
-extern boost::shared_ptr<ARGBFrame> xyz_to_rgb (opj_image_t* xyz_frame);
+extern void sign (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, Standard standard);
+extern void add_signature_value (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, std::string const & ns);
+extern void add_signer (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & ns);
 
+extern int base64_decode (std::string const & in, unsigned char* out, int out_length);
+extern boost::optional<boost::filesystem::path> relative_to_root (boost::filesystem::path root, boost::filesystem::path file);
+extern std::string tm_to_string (struct tm *);
+extern std::string utc_offset_to_string (int);
+extern std::string ptime_to_string (boost::posix_time::ptime);
+extern FILE * fopen_boost (boost::filesystem::path, std::string);
+
+template <class F, class T>
+std::list<boost::shared_ptr<T> >
+list_of_type (std::list<boost::shared_ptr<F> > const & from)
+{
+       std::list<boost::shared_ptr<T> > out;
+       for (typename std::list<boost::shared_ptr<F> >::const_iterator i = from.begin(); i != from.end(); ++i) {
+               boost::shared_ptr<T> check = boost::dynamic_pointer_cast<T> (*i);
+               if (check) {
+                       out.push_back (check);
+               }
+       }
+
+       return out;
 }
+       
+}
+
+#endif