X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fsmf_source.h;h=82e6252b4507748e6b4da3e58536ec8dd05b64b1;hb=658bb3ccd43658de18fbd43cd91a8e66650e27a7;hp=74655e28bc0676dfd8dbb67b5d64798346514a18;hpb=7666a4a5ff853b0a8e03ffbb4208e36693bf254f;p=ardour.git diff --git a/libs/ardour/ardour/smf_source.h b/libs/ardour/ardour/smf_source.h index 74655e28bc..82e6252b45 100644 --- a/libs/ardour/ardour/smf_source.h +++ b/libs/ardour/ardour/smf_source.h @@ -1,6 +1,6 @@ /* Copyright (C) 2006 Paul Davis - Written by Dave Robillard, 2006 + Author: David Robillard 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 @@ -18,134 +18,82 @@ */ -#ifndef __ardour_smf_filesource_h__ -#define __ardour_smf_filesource_h__ +#ifndef __ardour_smf_source_h__ +#define __ardour_smf_source_h__ #include #include +#include "evoral/SMF.hpp" +#include "ardour/midi_source.h" +#include "ardour/file_source.h" -#include +namespace Evoral { template class Event; } namespace ARDOUR { -class MidiRingBuffer; +template class MidiRingBuffer; /** Standard Midi File (Type 0) Source */ -class SMFSource : public MidiSource { - public: - enum Flag { - Writable = 0x1, - CanRename = 0x2, - Broadcast = 0x4, - Removable = 0x8, - RemovableIfEmpty = 0x10, - RemoveAtDestroy = 0x20, - BuildPeaks = 0x40 - }; - +class LIBARDOUR_API SMFSource : public MidiSource, public FileSource, public Evoral::SMF { +public: /** Constructor for existing external-to-session files */ - SMFSource (Session& session, std::string path, Flag flags = Flag(0)); + SMFSource (Session& session, const std::string& path, + Source::Flag flags = Source::Flag(0)); - /* Constructor for existing in-session files */ - SMFSource (Session& session, const XMLNode&); + /** Constructor for existing in-session files */ + SMFSource (Session& session, const XMLNode&, bool must_exist = false); virtual ~SMFSource (); - /* this block of methods do nothing for regular file sources, but are significant - for files used in destructive recording. - */ - // FIXME and thus are useless for MIDI.. but make MidiDiskstream compile easier! :) - - virtual nframes_t last_capture_start_frame() const { return 0; } - virtual void mark_capture_start (nframes_t) {} - virtual void mark_capture_end () {} - virtual void clear_capture_marks() {} + bool safe_file_extension (const std::string& path) const { + return safe_midi_file_extension(path); + } bool set_name (const std::string& newname) { return (set_source_name(newname, false) == 0); } - int set_source_name (string newname, bool destructive); - - static bool safe_file_extension (const Glib::ustring& path); - - Glib::ustring path() const { return _path; } - - void set_allow_remove_if_empty (bool yn); - void mark_for_remove(); - - void append_event_unlocked(EventTimeUnit unit, const MIDI::Event& ev); - int flush_header (); - int flush_footer (); - - int move_to_trash (const string trash_dir_name); + void append_event_unlocked_beats (const Evoral::Event& ev); + void append_event_unlocked_frames (const Evoral::Event& ev, framepos_t source_start); - bool is_empty () const; - void mark_streaming_midi_write_started (NoteMode mode, nframes_t start_time); + void mark_streaming_midi_write_started (NoteMode mode); void mark_streaming_write_completed (); + void mark_midi_streaming_write_completed (Evoral::Sequence::StuckNoteOption, Evoral::MusicalTime when = 0); - void mark_take (string); - string take_id() const { return _take_id; } + XMLNode& get_state (); + int set_state (const XMLNode&, int version); - static void set_search_path (string); - static void set_header_position_offset (nframes_t offset, bool negative); + void load_model (bool lock=true, bool force_reload=false); + void destroy_model (); - XMLNode& get_state (); - int set_state (const XMLNode&); + void flush_midi (); + void ensure_disk_file (); - void seek_to(nframes_t time); - - void load_model(bool lock=true, bool force_reload=false); - void destroy_model(); + static bool safe_midi_file_extension (const std::string& path); - uint16_t ppqn() const { return _ppqn; } + protected: + void set_path (const std::string& newpath); private: - - int init (string idstr, bool must_exist); - - nframes_t read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cn, nframes_t stamp_offset, nframes_t negative_stamp_offset) const; - nframes_t write_unlocked (MidiRingBuffer& dst, nframes_t cnt); - - bool find (std::string path, bool must_exist, bool& is_new); - bool removable() const; - bool writable() const { return _flags & Writable; } - - int open(); - void close(); - - /** - * This method is only used by flush_footer() to find the right seek position - * for the footer (at the end after recording or -4 offset ro SEEK_END - * if a footer is already present) - */ - 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; - int read_event(uint32_t* delta_t, uint32_t* size, Byte** buf) const; - - static const uint16_t _ppqn = 19200; - - Glib::ustring _path; - Flag _flags; - string _take_id; - bool _allow_remove_if_empty; - FILE* _fd; - double _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 - - static string _search_path; + int open_for_write (); + + framecnt_t read_unlocked (Evoral::EventSink& dst, + framepos_t position, + framepos_t start, + framecnt_t cnt, + MidiStateTracker* tracker) const; + + framecnt_t write_unlocked (MidiRingBuffer& src, + framepos_t position, + framecnt_t cnt); + + double _last_ev_time_beats; + framepos_t _last_ev_time_frames; + /** end time (start + duration) of last call to read_unlocked */ + mutable framepos_t _smf_last_read_end; + /** time (in SMF ticks, 1 tick per _ppqn) of the last event read by read_unlocked */ + mutable framepos_t _smf_last_read_time; }; }; /* namespace ARDOUR */ -#endif /* __ardour_smf_filesource_h__ */ +#endif /* __ardour_smf_source_h__ */