Strip trailing whitespace and fix other whitespace errors (e.g. space/tab mixing...

[ardour.git] / libs / evoral / evoral / SMF.hpp

diff --git a/libs/evoral/evoral/SMF.hpp b/libs/evoral/evoral/SMF.hpp
index e9f2f47bfebb14a1e54b57dac9fe3909f3c92875..e9c4a0fc49450368eca7a5e749a3512f70495b03 100644 (file)
--- a/libs/evoral/evoral/SMF.hpp
+++ b/libs/evoral/evoral/SMF.hpp
@@ -1,16 +1,17 @@
 /* This file is part of Evoral.
  * Copyright(C) 2008 Dave Robillard <http://drobilla.net>
  * Copyright(C) 2000-2008 Paul Davis
- * 
+ * Author: Hans Baier
+ *
  * Evoral is free 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.
- * 
+ *
  * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
- * 
+ *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
@@ -19,63 +20,57 @@
 #ifndef EVORAL_SMF_HPP
 #define EVORAL_SMF_HPP
 
-#include "evoral/MIDIFile.hpp"
+#include <cassert>
+
+struct smf_struct;
+struct smf_track_struct;
+typedef smf_struct smf_t;
+typedef smf_track_struct smf_track_t;
 
 namespace Evoral {
-       
-template<typename Time> class Event;
-template<typename Time> class EventRingBuffer;
 
+#define THROW_FILE_ERROR throw(FileError)
 
-/** Standard Midi File (Type 0)
+/** Standard Midi File.
+ * Currently only tempo-based time of a given PPQN is supported.
  */
-template<typename Time>
-class SMF : public MIDIFile<Time> {
+class SMF {
 public:
-       SMF();
+       class FileError : public std::exception {
+               const char* what() const throw() { return "Unknown SMF error"; }
+       };
+
+       SMF() : _smf(0), _smf_track(0), _empty(true) {};
        virtual ~SMF();
 
+       int  open(const std::string& path, int track=1) THROW_FILE_ERROR;
+       int  create(const std::string& path, int track=1, uint16_t ppqn=19200) THROW_FILE_ERROR;
+       void close() THROW_FILE_ERROR;
+
+       const std::string& file_path() const { return _file_path; };
+
        void seek_to_start() const;
-       
-       uint16_t ppqn()     const { return _ppqn; }
-       bool     is_empty() const { return _empty; }
-       bool     eof()      const { return feof(_fd); }
-       
-       Time last_event_time() const { return _last_ev_time; }
-       
+       int  seek_to_track(int track);
+
+       int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
+
+       uint16_t num_tracks() const;
+       uint16_t ppqn()       const;
+       bool     is_empty()   const { return _empty; }
+
        void begin_write();
-       void append_event_delta(uint32_t delta_t, const Event<Time>& ev);
+       void append_event_delta(uint32_t delta_t, uint32_t size, const uint8_t* buf);
        void end_write() THROW_FILE_ERROR;
-       
-       void flush();
-       int  flush_header();
-       int  flush_footer();
 
-protected:
-       int  open(const std::string& path) THROW_FILE_ERROR;
-       void close() THROW_FILE_ERROR;
-       
-       int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
+       void flush() {};
+
+        double round_to_file_precision (double val) const;
 
 private:
-       /** Used by flush_footer() to find the position to write the footer */
-       void seek_to_footer_position();
-       
-       /** Write the track footer at the current seek position */
-       void write_footer();
-
-       void     write_chunk_header(const char id[4], uint32_t length);
-       void     write_chunk(const char id[4], uint32_t length, void* data);
-       size_t   write_var_len(uint32_t val);
-       uint32_t read_var_len() const;
-
-       static const uint16_t _ppqn = 19200;
-
-       FILE*    _fd;
-       Time     _last_ev_time; ///< last frame time written, relative to source start
-       uint32_t _track_size;
-       uint32_t _header_size; ///< size of SMF header, including MTrk chunk header
-       bool     _empty; ///< true iff file contains(non-empty) events
+       std::string  _file_path;
+       smf_t*       _smf;
+       smf_track_t* _smf_track;
+       bool         _empty; ///< true iff file contains(non-empty) events
 };
 
 }; /* namespace Evoral */