gzdoom-gles/src/sound/i_musicinterns.h
Christoph Oelckers bfd968a88c - uncoupled the MIDI player from Windows system structures.
The approach being used here caused the entire sound system to be infested by windows.h, just to avoid copying around a handful of variables in one place, effectively preventing any compiling optimization.
Windows will now use the same internally defined structure for all MIDI processing which only for actual submission to the system player will be converted to the internal format.
2017-03-10 12:01:29 +01:00

826 lines
22 KiB
C++

#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#define USE_WINDOWS_DWORD
#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0400
#undef _WIN32_WINNT
#endif
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
#endif
#ifndef USE_WINDOWS_DWORD
#define USE_WINDOWS_DWORD
#endif
#include <windows.h>
#include <mmsystem.h>
#else
#define FALSE 0
#define TRUE 1
#endif
#ifdef __APPLE__
#include <AudioToolbox/AudioToolbox.h>
#endif // __APPLE__
#include "tempfiles.h"
#include "oplsynth/opl_mus_player.h"
#include "c_cvars.h"
#include "mus2midi.h"
#include "i_sound.h"
#include "i_music.h"
#include "s_sound.h"
#include "files.h"
#include "wildmidi/wildmidi_lib.h"
void I_InitMusicWin32 ();
void I_ShutdownMusicWin32 ();
extern float relative_volume;
EXTERN_CVAR (Float, timidity_mastervolume)
// A device that provides a WinMM-like MIDI streaming interface -------------
struct MidiHeader
{
uint8_t *lpData;
uint32_t dwBufferLength;
uint32_t dwBytesRecorded;
MidiHeader *lpNext;
};
#ifndef _WIN32
enum
{
MOD_MIDIPORT = 1,
MOD_SYNTH,
MOD_SQSYNTH,
MOD_FMSYNTH,
MOD_MAPPER,
MOD_WAVETABLE,
MOD_SWSYNTH
};
typedef uint8_t *LPSTR;
#define MEVT_TEMPO ((uint8_t)1)
#define MEVT_NOP ((uint8_t)2)
#define MEVT_LONGMSG ((uint8_t)128)
#define MEVT_EVENTTYPE(x) ((uint8_t)((x) >> 24))
#define MEVT_EVENTPARM(x) ((x) & 0xffffff)
#define MOM_DONE 969
#else
// w32api does not define these
#ifndef MOD_WAVETABLE
#define MOD_WAVETABLE 6
#define MOD_SWSYNTH 7
#endif
#endif
class MIDIStreamer;
typedef void(*MidiCallback)(unsigned int, void *);
class MIDIDevice
{
public:
MIDIDevice();
virtual ~MIDIDevice();
virtual int Open(MidiCallback, void *userdata) = 0;
virtual void Close() = 0;
virtual bool IsOpen() const = 0;
virtual int GetTechnology() const = 0;
virtual int SetTempo(int tempo) = 0;
virtual int SetTimeDiv(int timediv) = 0;
virtual int StreamOut(MidiHeader *data) = 0;
virtual int StreamOutSync(MidiHeader *data) = 0;
virtual int Resume() = 0;
virtual void Stop() = 0;
virtual int PrepareHeader(MidiHeader *data);
virtual int UnprepareHeader(MidiHeader *data);
virtual bool FakeVolume();
virtual bool Pause(bool paused) = 0;
virtual bool NeedThreadedCallback();
virtual void PrecacheInstruments(const uint16_t *instruments, int count);
virtual void TimidityVolumeChanged();
virtual void FluidSettingInt(const char *setting, int value);
virtual void FluidSettingNum(const char *setting, double value);
virtual void FluidSettingStr(const char *setting, const char *value);
virtual void WildMidiSetOption(int opt, int set);
virtual bool Preprocess(MIDIStreamer *song, bool looping);
virtual FString GetStats();
};
// WinMM implementation of a MIDI output device -----------------------------
#ifdef _WIN32
class WinMIDIDevice : public MIDIDevice
{
public:
WinMIDIDevice(int dev_id);
~WinMIDIDevice();
int Open(MidiCallback, void *userdata);
void Close();
bool IsOpen() const;
int GetTechnology() const;
int SetTempo(int tempo);
int SetTimeDiv(int timediv);
int StreamOut(MidiHeader *data);
int StreamOutSync(MidiHeader *data);
int Resume();
void Stop();
int PrepareHeader(MidiHeader *data);
int UnprepareHeader(MidiHeader *data);
bool FakeVolume();
bool NeedThreadedCallback();
bool Pause(bool paused);
void PrecacheInstruments(const uint16_t *instruments, int count);
protected:
static void CALLBACK CallbackFunc(HMIDIOUT, UINT, DWORD_PTR, DWORD, DWORD);
HMIDISTRM MidiOut;
UINT DeviceID;
DWORD SavedVolume;
MIDIHDR WinMidiHeaders[2];
int HeaderIndex;
bool VolumeWorks;
void (*Callback)(unsigned int, void *);
void *CallbackData;
};
#endif
// AudioToolbox implementation of a MIDI output device ----------------------
#ifdef __APPLE__
class AudioToolboxMIDIDevice : public MIDIDevice
{
public:
virtual int Open(MidiCallback, void *userData) override;
virtual void Close() override;
virtual bool IsOpen() const override;
virtual int GetTechnology() const override;
virtual int SetTempo(int tempo) override;
virtual int SetTimeDiv(int timediv) override;
virtual int StreamOut(MidiHeader *data) override;
virtual int StreamOutSync(MidiHeader *data) override;
virtual int Resume() override;
virtual void Stop() override;
virtual int PrepareHeader(MidiHeader* data) override;
virtual bool FakeVolume() override { return true; }
virtual bool Pause(bool paused) override;
virtual bool Preprocess(MIDIStreamer *song, bool looping) override;
private:
MusicPlayer m_player = nullptr;
MusicSequence m_sequence = nullptr;
AudioUnit m_audioUnit = nullptr;
CFRunLoopTimerRef m_timer = nullptr;
MusicTimeStamp m_length = 0;
typedef void (*Callback)(unsigned int, void *, DWORD, DWORD);
Callback m_callback = nullptr;
void* m_userData = nullptr;
static void TimerCallback(CFRunLoopTimerRef timer, void* info);
};
#endif // __APPLE__
// Base class for pseudo-MIDI devices ---------------------------------------
class PseudoMIDIDevice : public MIDIDevice
{
public:
PseudoMIDIDevice();
~PseudoMIDIDevice();
void Close();
bool IsOpen() const;
int GetTechnology() const;
bool Pause(bool paused);
int Resume();
void Stop();
int StreamOut(MidiHeader *data);
int StreamOutSync(MidiHeader *data);
int SetTempo(int tempo);
int SetTimeDiv(int timediv);
FString GetStats();
protected:
SoundStream *Stream;
bool Started;
bool bLooping;
};
// Sound System pseudo-MIDI device ------------------------------------------
class SndSysMIDIDevice : public PseudoMIDIDevice
{
public:
int Open(MidiCallback, void *userdata);
bool Preprocess(MIDIStreamer *song, bool looping);
};
// MIDI file played with TiMidity++ and possibly streamed through the Sound System
class TimidityPPMIDIDevice : public PseudoMIDIDevice
{
public:
TimidityPPMIDIDevice(const char *args);
~TimidityPPMIDIDevice();
int Open(MidiCallback, void *userdata);
bool Preprocess(MIDIStreamer *song, bool looping);
bool IsOpen() const;
int Resume();
void Stop();
bool IsOpen();
void TimidityVolumeChanged();
protected:
bool LaunchTimidity();
FTempFileName DiskName;
#ifdef _WIN32
HANDLE ReadWavePipe;
HANDLE WriteWavePipe;
HANDLE ChildProcess;
bool Validated;
bool ValidateTimidity();
#else // _WIN32
int WavePipe[2];
pid_t ChildProcess;
#endif
FString CommandLine;
size_t LoopPos;
static bool FillStream(SoundStream *stream, void *buff, int len, void *userdata);
#ifdef _WIN32
static const char EventName[];
#endif
};
// Base class for software synthesizer MIDI output devices ------------------
class SoftSynthMIDIDevice : public MIDIDevice
{
public:
SoftSynthMIDIDevice();
~SoftSynthMIDIDevice();
void Close();
bool IsOpen() const;
int GetTechnology() const;
int SetTempo(int tempo);
int SetTimeDiv(int timediv);
int StreamOut(MidiHeader *data);
int StreamOutSync(MidiHeader *data);
int Resume();
void Stop();
bool Pause(bool paused);
protected:
FCriticalSection CritSec;
SoundStream *Stream;
double Tempo;
double Division;
double SamplesPerTick;
double NextTickIn;
MidiHeader *Events;
bool Started;
DWORD Position;
int SampleRate;
void (*Callback)(unsigned int, void *);
void *CallbackData;
virtual void CalcTickRate();
int PlayTick();
int OpenStream(int chunks, int flags, MidiCallback, void *userdata);
static bool FillStream(SoundStream *stream, void *buff, int len, void *userdata);
virtual bool ServiceStream (void *buff, int numbytes);
virtual void HandleEvent(int status, int parm1, int parm2) = 0;
virtual void HandleLongEvent(const uint8_t *data, int len) = 0;
virtual void ComputeOutput(float *buffer, int len) = 0;
};
// OPL implementation of a MIDI output device -------------------------------
class OPLMIDIDevice : public SoftSynthMIDIDevice, protected OPLmusicBlock
{
public:
OPLMIDIDevice(const char *args);
int Open(MidiCallback, void *userdata);
void Close();
int GetTechnology() const;
FString GetStats();
protected:
void CalcTickRate();
int PlayTick();
void HandleEvent(int status, int parm1, int parm2);
void HandleLongEvent(const uint8_t *data, int len);
void ComputeOutput(float *buffer, int len);
bool ServiceStream(void *buff, int numbytes);
};
// OPL dumper implementation of a MIDI output device ------------------------
class OPLDumperMIDIDevice : public OPLMIDIDevice
{
public:
OPLDumperMIDIDevice(const char *filename);
~OPLDumperMIDIDevice();
int Resume();
void Stop();
};
// Internal TiMidity MIDI device --------------------------------------------
namespace Timidity { struct Renderer; }
class TimidityMIDIDevice : public SoftSynthMIDIDevice
{
public:
TimidityMIDIDevice(const char *args);
~TimidityMIDIDevice();
int Open(MidiCallback, void *userdata);
void PrecacheInstruments(const uint16_t *instruments, int count);
FString GetStats();
protected:
Timidity::Renderer *Renderer;
void HandleEvent(int status, int parm1, int parm2);
void HandleLongEvent(const uint8_t *data, int len);
void ComputeOutput(float *buffer, int len);
};
// Internal TiMidity disk writing version of a MIDI device ------------------
class TimidityWaveWriterMIDIDevice : public TimidityMIDIDevice
{
public:
TimidityWaveWriterMIDIDevice(const char *filename, int rate);
~TimidityWaveWriterMIDIDevice();
int Resume();
void Stop();
protected:
FILE *File;
};
// WildMidi implementation of a MIDI device ---------------------------------
class WildMIDIDevice : public SoftSynthMIDIDevice
{
public:
WildMIDIDevice(const char *args);
~WildMIDIDevice();
int Open(MidiCallback, void *userdata);
void PrecacheInstruments(const uint16_t *instruments, int count);
FString GetStats();
protected:
WildMidi_Renderer *Renderer;
void HandleEvent(int status, int parm1, int parm2);
void HandleLongEvent(const uint8_t *data, int len);
void ComputeOutput(float *buffer, int len);
void WildMidiSetOption(int opt, int set);
};
// FluidSynth implementation of a MIDI device -------------------------------
#ifdef HAVE_FLUIDSYNTH
#ifndef DYN_FLUIDSYNTH
#include <fluidsynth.h>
#else
#include "i_module.h"
extern FModule FluidSynthModule;
struct fluid_settings_t;
struct fluid_synth_t;
#endif
class FluidSynthMIDIDevice : public SoftSynthMIDIDevice
{
public:
FluidSynthMIDIDevice(const char *args);
~FluidSynthMIDIDevice();
int Open(MidiCallback, void *userdata);
FString GetStats();
void FluidSettingInt(const char *setting, int value);
void FluidSettingNum(const char *setting, double value);
void FluidSettingStr(const char *setting, const char *value);
protected:
void HandleEvent(int status, int parm1, int parm2);
void HandleLongEvent(const uint8_t *data, int len);
void ComputeOutput(float *buffer, int len);
int LoadPatchSets(const char *patches);
fluid_settings_t *FluidSettings;
fluid_synth_t *FluidSynth;
#ifdef DYN_FLUIDSYNTH
enum { FLUID_FAILED = -1, FLUID_OK = 0 };
static TReqProc<FluidSynthModule, fluid_settings_t *(*)()> new_fluid_settings;
static TReqProc<FluidSynthModule, fluid_synth_t *(*)(fluid_settings_t *)> new_fluid_synth;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *)> delete_fluid_synth;
static TReqProc<FluidSynthModule, void (*)(fluid_settings_t *)> delete_fluid_settings;
static TReqProc<FluidSynthModule, int (*)(fluid_settings_t *, const char *, double)> fluid_settings_setnum;
static TReqProc<FluidSynthModule, int (*)(fluid_settings_t *, const char *, const char *)> fluid_settings_setstr;
static TReqProc<FluidSynthModule, int (*)(fluid_settings_t *, const char *, int)> fluid_settings_setint;
static TReqProc<FluidSynthModule, int (*)(fluid_settings_t *, const char *, char **)> fluid_settings_getstr;
static TReqProc<FluidSynthModule, int (*)(fluid_settings_t *, const char *, int *)> fluid_settings_getint;
static TReqProc<FluidSynthModule, void (*)(fluid_synth_t *, int)> fluid_synth_set_reverb_on;
static TReqProc<FluidSynthModule, void (*)(fluid_synth_t *, int)> fluid_synth_set_chorus_on;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int)> fluid_synth_set_interp_method;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int)> fluid_synth_set_polyphony;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *)> fluid_synth_get_polyphony;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *)> fluid_synth_get_active_voice_count;
static TReqProc<FluidSynthModule, double (*)(fluid_synth_t *)> fluid_synth_get_cpu_load;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *)> fluid_synth_system_reset;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int, int)> fluid_synth_noteon;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int)> fluid_synth_noteoff;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int, int)> fluid_synth_cc;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int)> fluid_synth_program_change;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int)> fluid_synth_channel_pressure;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, int)> fluid_synth_pitch_bend;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, int, void *, int, int, void *, int, int)> fluid_synth_write_float;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, const char *, int)> fluid_synth_sfload;
static TReqProc<FluidSynthModule, void (*)(fluid_synth_t *, double, double, double, double)> fluid_synth_set_reverb;
static TReqProc<FluidSynthModule, void (*)(fluid_synth_t *, int, double, double, double, int)> fluid_synth_set_chorus;
static TReqProc<FluidSynthModule, int (*)(fluid_synth_t *, const char *, int, char *, int *, int *, int)> fluid_synth_sysex;
bool LoadFluidSynth();
void UnloadFluidSynth();
#endif
};
#endif
// Base class for streaming MUS and MIDI files ------------------------------
class MIDIStreamer : public MusInfo
{
public:
MIDIStreamer(EMidiDevice type, const char *args);
~MIDIStreamer();
void MusicVolumeChanged();
void TimidityVolumeChanged();
void Play(bool looping, int subsong);
void Pause();
void Resume();
void Stop();
bool IsPlaying();
bool IsMIDI() const;
bool IsValid() const;
bool SetSubsong(int subsong);
void Update();
FString GetStats();
void FluidSettingInt(const char *setting, int value);
void FluidSettingNum(const char *setting, double value);
void FluidSettingStr(const char *setting, const char *value);
void WildMidiSetOption(int opt, int set);
void CreateSMF(TArray<uint8_t> &file, int looplimit=0);
protected:
MIDIStreamer(const char *dumpname, EMidiDevice type);
void OutputVolume (DWORD volume);
int FillBuffer(int buffer_num, int max_events, DWORD max_time);
int FillStopBuffer(int buffer_num);
DWORD *WriteStopNotes(DWORD *events);
int ServiceEvent();
int VolumeControllerChange(int channel, int volume);
int ClampLoopCount(int loopcount);
void SetTempo(int new_tempo);
static EMidiDevice SelectMIDIDevice(EMidiDevice devtype);
MIDIDevice *CreateMIDIDevice(EMidiDevice devtype) const;
static void Callback(unsigned int uMsg, void *userdata);
// Virtuals for subclasses to override
virtual void StartPlayback();
virtual void CheckCaps(int tech);
virtual void DoInitialSetup() = 0;
virtual void DoRestart() = 0;
virtual bool CheckDone() = 0;
virtual void Precache();
virtual bool SetMIDISubsong(int subsong);
virtual DWORD *MakeEvents(DWORD *events, DWORD *max_event_p, DWORD max_time) = 0;
enum
{
MAX_EVENTS = 128
};
enum
{
SONG_MORE,
SONG_DONE,
SONG_ERROR
};
#ifdef _WIN32
static DWORD WINAPI PlayerProc (LPVOID lpParameter);
DWORD PlayerLoop();
HANDLE PlayerThread;
HANDLE ExitEvent;
HANDLE BufferDoneEvent;
#endif
MIDIDevice *MIDI;
DWORD Events[2][MAX_EVENTS*3];
MidiHeader Buffer[2];
int BufferNum;
int EndQueued;
bool VolumeChanged;
bool Restarting;
bool InitialPlayback;
DWORD NewVolume;
int Division;
int Tempo;
int InitialTempo;
uint8_t ChannelVolumes[16];
DWORD Volume;
EMidiDevice DeviceType;
bool CallbackIsThreaded;
int LoopLimit;
FString DumpFilename;
FString Args;
};
// MUS file played with a MIDI stream ---------------------------------------
class MUSSong2 : public MIDIStreamer
{
public:
MUSSong2(FileReader &reader, EMidiDevice type, const char *args);
~MUSSong2();
MusInfo *GetOPLDumper(const char *filename);
MusInfo *GetWaveDumper(const char *filename, int rate);
protected:
MUSSong2(const MUSSong2 *original, const char *filename, EMidiDevice type); // file dump constructor
void DoInitialSetup();
void DoRestart();
bool CheckDone();
void Precache();
DWORD *MakeEvents(DWORD *events, DWORD *max_events_p, DWORD max_time);
MUSHeader *MusHeader;
uint8_t *MusBuffer;
uint8_t LastVelocity[16];
size_t MusP, MaxMusP;
};
// MIDI file played with a MIDI stream --------------------------------------
class MIDISong2 : public MIDIStreamer
{
public:
MIDISong2(FileReader &reader, EMidiDevice type, const char *args);
~MIDISong2();
MusInfo *GetOPLDumper(const char *filename);
MusInfo *GetWaveDumper(const char *filename, int rate);
protected:
MIDISong2(const MIDISong2 *original, const char *filename, EMidiDevice type); // file dump constructor
void CheckCaps(int tech);
void DoInitialSetup();
void DoRestart();
bool CheckDone();
DWORD *MakeEvents(DWORD *events, DWORD *max_events_p, DWORD max_time);
void AdvanceTracks(DWORD time);
struct TrackInfo;
void ProcessInitialMetaEvents ();
DWORD *SendCommand (DWORD *event, TrackInfo *track, DWORD delay, ptrdiff_t room, bool &sysex_noroom);
TrackInfo *FindNextDue ();
uint8_t *MusHeader;
int SongLen;
TrackInfo *Tracks;
TrackInfo *TrackDue;
int NumTracks;
int Format;
uint16_t DesignationMask;
};
// HMI file played with a MIDI stream ---------------------------------------
struct AutoNoteOff
{
DWORD Delay;
uint8_t Channel, Key;
};
// Sorry, std::priority_queue, but I want to be able to modify the contents of the heap.
class NoteOffQueue : public TArray<AutoNoteOff>
{
public:
void AddNoteOff(DWORD delay, uint8_t channel, uint8_t key);
void AdvanceTime(DWORD time);
bool Pop(AutoNoteOff &item);
protected:
void Heapify();
unsigned int Parent(unsigned int i) const { return (i + 1u) / 2u - 1u; }
unsigned int Left(unsigned int i) const { return (i + 1u) * 2u - 1u; }
unsigned int Right(unsigned int i) const { return (i + 1u) * 2u; }
};
class HMISong : public MIDIStreamer
{
public:
HMISong(FileReader &reader, EMidiDevice type, const char *args);
~HMISong();
MusInfo *GetOPLDumper(const char *filename);
MusInfo *GetWaveDumper(const char *filename, int rate);
protected:
HMISong(const HMISong *original, const char *filename, EMidiDevice type); // file dump constructor
void SetupForHMI(int len);
void SetupForHMP(int len);
void CheckCaps(int tech);
void DoInitialSetup();
void DoRestart();
bool CheckDone();
DWORD *MakeEvents(DWORD *events, DWORD *max_events_p, DWORD max_time);
void AdvanceTracks(DWORD time);
struct TrackInfo;
void ProcessInitialMetaEvents ();
DWORD *SendCommand (DWORD *event, TrackInfo *track, DWORD delay, ptrdiff_t room, bool &sysex_noroom);
TrackInfo *FindNextDue ();
static DWORD ReadVarLenHMI(TrackInfo *);
static DWORD ReadVarLenHMP(TrackInfo *);
uint8_t *MusHeader;
int SongLen;
int NumTracks;
TrackInfo *Tracks;
TrackInfo *TrackDue;
TrackInfo *FakeTrack;
DWORD (*ReadVarLen)(TrackInfo *);
NoteOffQueue NoteOffs;
};
// XMI file played with a MIDI stream ---------------------------------------
class XMISong : public MIDIStreamer
{
public:
XMISong(FileReader &reader, EMidiDevice type, const char *args);
~XMISong();
MusInfo *GetOPLDumper(const char *filename);
MusInfo *GetWaveDumper(const char *filename, int rate);
protected:
struct TrackInfo;
enum EventSource { EVENT_None, EVENT_Real, EVENT_Fake };
XMISong(const XMISong *original, const char *filename, EMidiDevice type); // file dump constructor
int FindXMIDforms(const uint8_t *chunk, int len, TrackInfo *songs) const;
void FoundXMID(const uint8_t *chunk, int len, TrackInfo *song) const;
bool SetMIDISubsong(int subsong);
void DoInitialSetup();
void DoRestart();
bool CheckDone();
DWORD *MakeEvents(DWORD *events, DWORD *max_events_p, DWORD max_time);
void AdvanceSong(DWORD time);
void ProcessInitialMetaEvents();
DWORD *SendCommand (DWORD *event, EventSource track, DWORD delay, ptrdiff_t room, bool &sysex_noroom);
EventSource FindNextDue();
uint8_t *MusHeader;
int SongLen; // length of the entire file
int NumSongs;
TrackInfo *Songs;
TrackInfo *CurrSong;
NoteOffQueue NoteOffs;
EventSource EventDue;
};
// Anything supported by the sound system out of the box --------------------
class StreamSong : public MusInfo
{
public:
StreamSong (FileReader *reader);
StreamSong (const char *url);
~StreamSong ();
void Play (bool looping, int subsong);
void Pause ();
void Resume ();
void Stop ();
bool IsPlaying ();
bool IsValid () const { return m_Stream != NULL; }
bool SetPosition (unsigned int pos);
bool SetSubsong (int subsong);
FString GetStats();
protected:
StreamSong () : m_Stream(NULL) {}
SoundStream *m_Stream;
};
// MUS file played by a software OPL2 synth and streamed through the sound system
class OPLMUSSong : public StreamSong
{
public:
OPLMUSSong (FileReader &reader, const char *args);
~OPLMUSSong ();
void Play (bool looping, int subsong);
bool IsPlaying ();
bool IsValid () const;
void ResetChips ();
MusInfo *GetOPLDumper(const char *filename);
protected:
OPLMUSSong(const OPLMUSSong *original, const char *filename); // OPL dump constructor
static bool FillStream (SoundStream *stream, void *buff, int len, void *userdata);
OPLmusicFile *Music;
};
class OPLMUSDumper : public OPLMUSSong
{
public:
OPLMUSDumper(const OPLMUSSong *original, const char *filename);
void Play(bool looping, int);
};
// CD track/disk played through the multimedia system -----------------------
class CDSong : public MusInfo
{
public:
CDSong (int track, int id);
~CDSong ();
void Play (bool looping, int subsong);
void Pause ();
void Resume ();
void Stop ();
bool IsPlaying ();
bool IsValid () const { return m_Inited; }
protected:
CDSong () : m_Inited(false) {}
int m_Track;
bool m_Inited;
};
// CD track on a specific disk played through the multimedia system ---------
class CDDAFile : public CDSong
{
public:
CDDAFile (FileReader &reader);
};
// Module played via foo_dumb -----------------------------------------------
MusInfo *MOD_OpenSong(FileReader &reader);
// Music played via Game Music Emu ------------------------------------------
const char *GME_CheckFormat(uint32_t header);
MusInfo *GME_OpenSong(FileReader &reader, const char *fmt);
// --------------------------------------------------------------------------
extern MusInfo *currSong;
EXTERN_CVAR (Float, snd_musicvolume)