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Diffstat (limited to 'src/music/midifile.hpp')
| -rw-r--r-- | src/music/midifile.hpp | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/music/midifile.hpp b/src/music/midifile.hpp new file mode 100644 index 000000000..d077f63cd --- /dev/null +++ b/src/music/midifile.hpp @@ -0,0 +1,44 @@ +/* $Id$ */ + +/* +* This file is part of OpenTTD. +* OpenTTD 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, version 2. +* OpenTTD 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 more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* @file midifile.hpp Parser for standard MIDI files */ + +#ifndef MUSIC_MIDIFILE_HPP +#define MUSIC_MIDIFILE_HPP + +#include "../stdafx.h" +#include "../core/smallvec_type.hpp" +#include "midi.h" +#include <vector> + +struct MidiFile { + struct DataBlock { + uint32 ticktime; ///< tick number since start of file this block should be triggered at + uint32 realtime; ///< real-time (microseconds) since start of file this block should be triggered at + SmallVector<byte, 8> data; ///< raw midi data contained in block + DataBlock(uint32 _ticktime = 0) : ticktime(_ticktime) { } + }; + struct TempoChange { + uint32 ticktime; ///< tick number since start of file this tempo change occurs at + uint32 tempo; ///< new tempo in microseconds per tick + TempoChange(uint32 _ticktime, uint32 _tempo) : ticktime(_ticktime), tempo(_tempo) { } + }; + + std::vector<DataBlock> blocks; ///< sequential time-annotated data of file, merged to a single track + std::vector<TempoChange> tempos; ///< list of tempo changes in file + uint16 tickdiv; ///< ticks per quarter note + + bool LoadFile(const char *filename); + void MoveFrom(MidiFile &other); + + static bool ReadSMFHeader(const char *filename, SMFHeader &header); + static bool ReadSMFHeader(FILE *file, SMFHeader &header); +}; + +#endif /* MUSIC_MIDIFILE_HPP */ |