OpenTTD Source
20241108-master-g80f628063a
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Data Structures | |
struct | DataBlock |
struct | TempoChange |
Public Member Functions | |
bool | LoadFile (const std::string &filename) |
Load a standard MIDI file. More... | |
bool | LoadMpsData (const uint8_t *data, size_t length) |
Create MIDI data from song data for the original Microprose music drivers. More... | |
bool | LoadSong (const MusicSongInfo &song) |
void | MoveFrom (MidiFile &other) |
Move data from other to this, and clears other. More... | |
bool | WriteSMF (const std::string &filename) |
Write a Standard MIDI File containing the decoded music. More... | |
Static Public Member Functions | |
static std::string | GetSMFFile (const MusicSongInfo &song) |
Get the name of a Standard MIDI File for a given song. More... | |
static bool | ReadSMFHeader (const std::string &filename, SMFHeader &header) |
Read the header of a standard MIDI file. More... | |
static bool | ReadSMFHeader (FileHandle &file, SMFHeader &header) |
Read the header of a standard MIDI file. More... | |
Data Fields | |
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_t | tickdiv |
ticks per quarter note | |
Definition at line 19 of file midifile.hpp.
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Get the name of a Standard MIDI File for a given song.
For songs already in SMF format, just returns the original. Otherwise the song is converted, written to a temporary-ish file, and the written filename is returned.
song | Song definition to query |
Definition at line 1028 of file midifile.cpp.
References BASESET_DIR, MusicSongInfo::filename, MusicSongInfo::filetype, FioFindFullPath(), MTT_MPSMIDI, MTT_STANDARDMIDI, and OLD_GM_DIR.
Referenced by MusicDriver_BeMidi::PlaySong(), MusicDriver_ExtMidi::PlaySong(), and MusicDriver_FluidSynth::PlaySong().
bool MidiFile::LoadFile | ( | const std::string & | filename | ) |
Load a standard MIDI file.
filename | name of the file to load |
Definition at line 447 of file midifile.cpp.
References BASESET_DIR, blocks, FioFOpenFile(), ReadSMFHeader(), tempos, and tickdiv.
bool MidiFile::LoadMpsData | ( | const uint8_t * | data, |
size_t | length | ||
) |
Create MIDI data from song data for the original Microprose music drivers.
data | pointer to block of data |
length | size of data in bytes |
Definition at line 825 of file midifile.cpp.
References MpsMachine::PlayInto().
void MidiFile::MoveFrom | ( | MidiFile & | other | ) |
Move data from other to this, and clears other.
other | object containing loaded data to take over |
Definition at line 857 of file midifile.cpp.
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Read the header of a standard MIDI file.
[in] | filename | name of file to read from |
[out] | header | filled with data read |
Definition at line 406 of file midifile.cpp.
References BASESET_DIR, and FioFOpenFile().
Referenced by LoadFile().
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Read the header of a standard MIDI file.
The function will consume 14 bytes from the current file pointer position.
[in] | file | open file to read from (should be in binary mode) |
[out] | header | filled with data read |
Definition at line 421 of file midifile.cpp.
References MemCmpT().
bool MidiFile::WriteSMF | ( | const std::string & | filename | ) |
Write a Standard MIDI File containing the decoded music.
filename | Name of file to write to |
Definition at line 901 of file midifile.cpp.
References blocks, MidiFile::DataBlock::data, FioFOpenFile(), NO_DIRECTORY, MidiFile::TempoChange::tempo, tempos, tickdiv, MidiFile::DataBlock::ticktime, and MidiFile::TempoChange::ticktime.