#include <mididrv.h>

Inheritance diagram for MidiDriver_BASE:

Public Member Functions
virtual void	send (uint32 b)=0

virtual void	send (int8 source, uint32 b)

void	send (byte status, byte firstOp, byte secondOp)

void	send (int8 source, byte status, byte firstOp, byte secondOp)

virtual void	sysEx (const byte *msg, uint16 length)

virtual uint16	sysExNoDelay (const byte *msg, uint16 length)

virtual void	metaEvent (byte type, byte *data, uint16 length)

virtual void	metaEvent (int8 source, byte type, byte *data, uint16 length)

virtual void	stopAllNotes (bool stopSustainedNotes=false)

virtual bool	isReady (int8 source=-1)

Static Public Attributes
static const uint8	MIDI_CHANNEL_COUNT = 16

static const uint8	MIDI_RHYTHM_CHANNEL = 9

static const byte	MIDI_COMMAND_NOTE_OFF = 0x80

static const byte	MIDI_COMMAND_NOTE_ON = 0x90

static const byte	MIDI_COMMAND_POLYPHONIC_AFTERTOUCH = 0xA0

static const byte	MIDI_COMMAND_CONTROL_CHANGE = 0xB0

static const byte	MIDI_COMMAND_PROGRAM_CHANGE = 0xC0

static const byte	MIDI_COMMAND_CHANNEL_AFTERTOUCH = 0xD0

static const byte	MIDI_COMMAND_PITCH_BEND = 0xE0

static const byte	MIDI_COMMAND_SYSTEM = 0xF0

static const byte	MIDI_CONTROLLER_BANK_SELECT_MSB = 0x00

static const byte	MIDI_CONTROLLER_MODULATION = 0x01

static const byte	MIDI_CONTROLLER_DATA_ENTRY_MSB = 0x06

static const byte	MIDI_CONTROLLER_VOLUME = 0x07

static const byte	MIDI_CONTROLLER_BALANCE = 0x08

static const byte	MIDI_CONTROLLER_PANNING = 0x0A

static const byte	MIDI_CONTROLLER_EXPRESSION = 0x0B

static const byte	MIDI_CONTROLLER_BANK_SELECT_LSB = 0x20

static const byte	MIDI_CONTROLLER_DATA_ENTRY_LSB = 0x26

static const byte	MIDI_CONTROLLER_SUSTAIN = 0x40

static const byte	MIDI_CONTROLLER_PORTAMENTO = 0x41

static const byte	MIDI_CONTROLLER_SOSTENUTO = 0x42

static const byte	MIDI_CONTROLLER_SOFT = 0x43

static const byte	MIDI_CONTROLLER_REVERB = 0x5B

static const byte	MIDI_CONTROLLER_CHORUS = 0x5D

static const byte	MIDI_CONTROLLER_RPN_LSB = 0x64

static const byte	MIDI_CONTROLLER_RPN_MSB = 0x65

static const byte	MIDI_CONTROLLER_ALL_SOUND_OFF = 0x78

static const byte	MIDI_CONTROLLER_RESET_ALL_CONTROLLERS = 0x79

static const byte	MIDI_CONTROLLER_ALL_NOTES_OFF = 0x7B

static const byte	MIDI_CONTROLLER_OMNI_ON = 0x7C

static const byte	MIDI_CONTROLLER_OMNI_OFF = 0x7D

static const byte	MIDI_CONTROLLER_MONO_ON = 0x7E

static const byte	MIDI_CONTROLLER_POLY_ON = 0x7F

static const uint16	MIDI_RPN_PITCH_BEND_SENSITIVITY = 0x0000

static const uint16	MIDI_RPN_MASTER_TUNING_FINE = 0x0001

static const uint16	MIDI_RPN_MASTER_TUNING_COARSE = 0x0002

static const uint16	MIDI_RPN_NULL = 0x7F7F

static const uint8	MIDI_META_END_OF_TRACK = 0x2F

static const uint8	MIDI_META_SEQUENCER = 0x7F

static const uint16	MIDI_PITCH_BEND_DEFAULT = 0x2000

static const uint8	MIDI_PANNING_DEFAULT = 0x40

static const uint8	MIDI_EXPRESSION_DEFAULT = 0x7F

static const uint16	MIDI_MASTER_TUNING_FINE_DEFAULT = 0x2000

static const uint8	MIDI_MASTER_TUNING_COARSE_DEFAULT = 0x40

static const uint8	MT32_PITCH_BEND_SENSITIVITY_DEFAULT = 0x0C

static const uint8	GM_PITCH_BEND_SENSITIVITY_DEFAULT = 0x02

static const uint8	GS_RHYTHM_FIRST_NOTE = 0x1B

static const uint8	GS_RHYTHM_LAST_NOTE = 0x58

Protected Member Functions
void	midiDumpInit ()

int	midiDumpVarLength (const uint32 &delta)

void	midiDumpDelta ()

void	midiDumpDo (uint32 b)

void	midiDumpSysEx (const byte *msg, uint16 length)

void	midiDumpFinish ()

Protected Attributes
bool	_midiDumpEnable

uint32	_prevMillis

Common::Array< byte >	_midiDumpCache

Detailed Description

TODO: Document this, give it a better name.

Member Function Documentation

◆ send() [1/4]

virtual void MidiDriver_BASE::send ( uint32 b )

pure virtual

Output a packed midi command to the midi stream. The 'lowest' byte (i.e. b & 0xFF) is the status code, then come (if used) the first and second opcode.

Implemented in Scumm::Player, MidiDriver_MT32GM, Kyra::MidiDriver_PCSpeaker, MidiDriver_Multisource, CGE::MusicPlayer, Audio::MidiPlayer, CGE2::MusicPlayer, Groovie::MusicPlayerMidi, Tinsel::MidiMusicPlayer, Sci::MidiPlayer, Dgds::MidiPlayer, Lure::MidiMusic, Illusions::MidiPlayer, AGOS::MidiDriver_Accolade_Cms, Queen::MidiMusic, Scumm::Player_HE, Prince::MusicPlayer, Scumm::IMuseDriver_GMidi, Touche::MidiPlayer, Scumm::IMuseDriver_Amiga, Scumm::IMuseDriver_FMTowns, Scumm::IMuseDriver_MacM68k, Agi::SoundGenMIDI, Toltecs::MusicPlayer, Queen::AdLibMidiDriver, Scumm::IMuseDriver_PCSpk, and MidiDriver_NULL.

◆ send() [2/4]

virtual void MidiDriver_BASE::send	(	int8	source,
		uint32	b
	)

inlinevirtual

Send a MIDI command from a specific source. If the MIDI driver does not support multiple sources, the source parameter is ignored.

Reimplemented in MidiDriver_ADLIB_Multisource, MidiDriver_NULL_Multisource, MidiDriver_MT32GM, MidiDriver_Multisource, Groovie::MusicPlayerXMI, Audio::MidiDriver_Miles_Midi, MidiDriver_Casio, Lure::MidiMusic, Ultima::Nuvie::MidiDriver_M_MT32, Ultima::Nuvie::MidiDriver_M_AdLib, AGOS::MidiDriver_Accolade_AdLib, and AGOS::MidiDriver_Accolade_MT32.

◆ send() [3/4]

void MidiDriver_BASE::send	(	byte	status,
		byte	firstOp,
		byte	secondOp
	)

Output a midi command to the midi stream. Convenience wrapper around the usual 'packed' send method.

Do NOT use this for sysEx transmission; instead, use the sysEx() method below.

◆ send() [4/4]

void MidiDriver_BASE::send	(	int8	source,
		byte	status,
		byte	firstOp,
		byte	secondOp
	)

Send a MIDI command from a specific source. If the MIDI driver does not support multiple sources, the source parameter is ignored.

◆ sysEx()

virtual void MidiDriver_BASE::sysEx	(	const byte *	msg,
		uint16	length
	)

inlinevirtual

Transmit a SysEx to the MIDI device.

The given msg MUST NOT contain the usual SysEx frame, i.e. do NOT include the leading 0xF0 and the trailing 0xF7.

Furthermore, the maximal supported length of a SysEx is 268 bytes. Passing longer buffers can lead to undefined behavior (most likely, a crash).

Reimplemented in MidiDriver_ADLIB_Multisource, Scumm::Player, MidiDriver_MT32GM, Groovie::MusicPlayerMidi, and Scumm::IMuseDriver_GMidi.

◆ sysExNoDelay()

virtual uint16 MidiDriver_BASE::sysExNoDelay	(	const byte *	msg,
		uint16	length
	)

inlinevirtual

Transmit a SysEx to the MIDI device and return the necessary delay until the next SysEx event in milliseconds.

This can be used to implement an alternate delay method than the OSystem::delayMillis function used by most sysEx implementations. Note that not every driver needs a delay, or supports this method. In this case, 0 is returned and the driver itself will do a delay if necessary.

For information on the SysEx data requirements, see the sysEx method.

Reimplemented in Scumm::Player, MidiDriver_MT32GM, and Groovie::MusicPlayerMidi.

◆ metaEvent()

virtual void MidiDriver_BASE::metaEvent	(	int8	source,
		byte	type,
		byte *	data,
		uint16	length
	)

inlinevirtual

Send a meta event from a specific source. If the MIDI driver does not support multiple sources, the source parameter is ignored.

Reimplemented in MidiDriver_ADLIB_Multisource, MidiDriver_MT32GM, Lure::MidiDriver_ADLIB_Lure, Groovie::MusicPlayerXMI, MidiDriver_Casio, Lure::MidiMusic, Ultima::Nuvie::MidiDriver_M_MT32, and Ultima::Nuvie::MidiDriver_M_AdLib.

◆ stopAllNotes()

virtual void MidiDriver_BASE::stopAllNotes ( bool stopSustainedNotes = false )

virtual

Stops all currently active notes. Specify stopSustainedNotes if the MIDI data makes use of the sustain controller to make sure sustained notes are also stopped.

Usually, the MIDI parser tracks active notes and terminates them when playback is stopped. This method should be used as a backup to silence the MIDI output in case the MIDI parser makes a mistake when tracking acive notes. It can also be used when quitting or pausing a game.

By default, this method sends an All Notes Off message and, if stopSustainedNotes is true, a Sustain off message on all MIDI channels. Driver implementations can override this if they want to implement this functionality in a different way.

Reimplemented in MidiDriver_ADLIB_Multisource, MidiDriver_MT32GM, Groovie::MusicPlayerXMI, Audio::MidiDriver_Miles_Midi, MidiDriver_Casio, and Ultima::Nuvie::MidiDriver_M_MT32.

◆ isReady()

virtual bool MidiDriver_BASE::isReady ( int8 source = -1 )

inlinevirtual

A driver implementation might need time to prepare playback of a track. Use this function to check if the driver is ready to receive MIDI events.

Parameters

source Check if the driver is ready to receive events from this specific source. Specify -1 to check readiness regardless of source.

Reimplemented in MidiDriver_MT32GM, and Groovie::MusicPlayerXMI.

◆ midiDumpInit()

void MidiDriver_BASE::midiDumpInit ( )

protected

Initialize midi dumping mechanism, called only if enabled

◆ midiDumpVarLength()

int MidiDriver_BASE::midiDumpVarLength ( const uint32 & delta )

protected

Handles MIDI file variable length dumping

◆ midiDumpDelta()

void MidiDriver_BASE::midiDumpDelta ( )

protected

Handles MIDI file time delta dumping

◆ midiDumpDo()

void MidiDriver_BASE::midiDumpDo ( uint32 b )

protected

Performs dumping of MIDI commands, called only if enabled

◆ midiDumpSysEx()

void MidiDriver_BASE::midiDumpSysEx	(	const byte *	msg,
		uint16	length
	)

protected

Performs dumping of MIDI SysEx commands, called only if enabled

◆ midiDumpFinish()

void MidiDriver_BASE::midiDumpFinish ( )

protected

Writes the captured MIDI events to disk, called only if enabled

Member Data Documentation

◆ _midiDumpEnable

bool MidiDriver_BASE::_midiDumpEnable

protected

Enables midi dumping to a 'dump.mid' file and to debug messages on screen It's set by '–dump-midi' command line parameter

◆ _prevMillis

uint32 MidiDriver_BASE::_prevMillis

protected

Used for MIDI dumping delta calculation

◆ _midiDumpCache

Common::Array<byte> MidiDriver_BASE::_midiDumpCache

protected

Stores all MIDI events, will be written to disk after an engine quits

The documentation for this class was generated from the following file:

audio/mididrv.h

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ send() [1/4]

◆ send() [2/4]

◆ send() [3/4]

◆ send() [4/4]

◆ sysEx()

◆ sysExNoDelay()

◆ metaEvent()

◆ stopAllNotes()

◆ isReady()

◆ midiDumpInit()

◆ midiDumpVarLength()

◆ midiDumpDelta()

◆ midiDumpDo()

◆ midiDumpSysEx()

◆ midiDumpFinish()

Member Data Documentation

◆ _midiDumpEnable

◆ _prevMillis

◆ _midiDumpCache