mirror of
https://github.com/ZDoom/ZMusic.git
synced 2024-12-11 21:11:00 +00:00
160 lines
5 KiB
C++
160 lines
5 KiB
C++
#pragma once
|
|
|
|
#include <mutex>
|
|
#include "zmusic/midiconfig.h"
|
|
#include "zmusic/mididefs.h"
|
|
|
|
typedef void(*MidiCallback)(void *);
|
|
|
|
// A device that provides a WinMM-like MIDI streaming interface -------------
|
|
|
|
|
|
struct MidiHeader
|
|
{
|
|
uint8_t *lpData;
|
|
uint32_t dwBufferLength;
|
|
uint32_t dwBytesRecorded;
|
|
MidiHeader *lpNext;
|
|
};
|
|
|
|
class MIDIDevice
|
|
{
|
|
public:
|
|
MIDIDevice() = default;
|
|
virtual ~MIDIDevice();
|
|
|
|
void SetCallback(MidiCallback callback, void* userdata)
|
|
{
|
|
Callback = callback;
|
|
CallbackData = userdata;
|
|
}
|
|
virtual int Open() = 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 void InitPlayback();
|
|
virtual bool Update();
|
|
virtual void PrecacheInstruments(const uint16_t *instruments, int count);
|
|
virtual void ChangeSettingInt(const char *setting, int value);
|
|
virtual void ChangeSettingNum(const char *setting, double value);
|
|
virtual void ChangeSettingString(const char *setting, const char *value);
|
|
virtual std::string GetStats();
|
|
virtual int GetDeviceType() const { return MDEV_DEFAULT; }
|
|
virtual bool CanHandleSysex() const { return true; }
|
|
virtual SoundStreamInfo GetStreamInfo() const;
|
|
|
|
protected:
|
|
MidiCallback Callback;
|
|
void* CallbackData;
|
|
};
|
|
|
|
// Base class for software synthesizer MIDI output devices ------------------
|
|
|
|
class SoftSynthMIDIDevice : public MIDIDevice
|
|
{
|
|
friend class MIDIWaveWriter;
|
|
public:
|
|
SoftSynthMIDIDevice(int samplerate, int minrate = 1, int maxrate = 1000000 /* something higher than any valid value */);
|
|
~SoftSynthMIDIDevice();
|
|
|
|
void Close() override;
|
|
bool IsOpen() const override;
|
|
int GetTechnology() const override;
|
|
int SetTempo(int tempo) override;
|
|
int SetTimeDiv(int timediv) override;
|
|
int StreamOut(MidiHeader *data) override;
|
|
int StreamOutSync(MidiHeader *data) override;
|
|
int Resume() override;
|
|
void Stop() override;
|
|
bool Pause(bool paused) override;
|
|
|
|
virtual int Open() override;
|
|
virtual bool ServiceStream(void* buff, int numbytes);
|
|
int GetSampleRate() const { return SampleRate; }
|
|
SoundStreamInfo GetStreamInfo() const override;
|
|
|
|
protected:
|
|
double Tempo;
|
|
double Division;
|
|
double SamplesPerTick;
|
|
double NextTickIn;
|
|
MidiHeader *Events;
|
|
bool Started;
|
|
bool isMono = false; // only relevant for OPL.
|
|
bool isOpen = false;
|
|
uint32_t Position;
|
|
int SampleRate;
|
|
int StreamBlockSize = 2;
|
|
|
|
virtual void CalcTickRate();
|
|
int PlayTick();
|
|
|
|
virtual int OpenRenderer() = 0;
|
|
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;
|
|
};
|
|
|
|
|
|
// Internal disk writing version of a MIDI device ------------------
|
|
|
|
class MIDIWaveWriter : public SoftSynthMIDIDevice
|
|
{
|
|
public:
|
|
MIDIWaveWriter(const char *filename, SoftSynthMIDIDevice *devtouse);
|
|
//~MIDIWaveWriter();
|
|
bool CloseFile();
|
|
int Resume() override;
|
|
int Open() override
|
|
{
|
|
playDevice->SetCallback(Callback, CallbackData);
|
|
return playDevice->Open();
|
|
}
|
|
int OpenRenderer() override { return playDevice->OpenRenderer(); }
|
|
void Stop() override;
|
|
void HandleEvent(int status, int parm1, int parm2) override { playDevice->HandleEvent(status, parm1, parm2); }
|
|
void HandleLongEvent(const uint8_t *data, int len) override { playDevice->HandleLongEvent(data, len); }
|
|
void ComputeOutput(float *buffer, int len) override { playDevice->ComputeOutput(buffer, len); }
|
|
int StreamOutSync(MidiHeader *data) override { return playDevice->StreamOutSync(data); }
|
|
int StreamOut(MidiHeader *data) override { return playDevice->StreamOut(data); }
|
|
int GetDeviceType() const override { return playDevice->GetDeviceType(); }
|
|
bool ServiceStream (void *buff, int numbytes) override { return playDevice->ServiceStream(buff, numbytes); }
|
|
int GetTechnology() const override { return playDevice->GetTechnology(); }
|
|
int SetTempo(int tempo) override { return playDevice->SetTempo(tempo); }
|
|
int SetTimeDiv(int timediv) override { return playDevice->SetTimeDiv(timediv); }
|
|
bool IsOpen() const override { return playDevice->IsOpen(); }
|
|
void CalcTickRate() override { playDevice->CalcTickRate(); }
|
|
|
|
protected:
|
|
FILE *File;
|
|
SoftSynthMIDIDevice *playDevice;
|
|
};
|
|
|
|
|
|
// MIDI devices
|
|
|
|
MIDIDevice *CreateFluidSynthMIDIDevice(int samplerate, const char *Args);
|
|
MIDIDevice *CreateADLMIDIDevice(const char* args);
|
|
MIDIDevice *CreateOPNMIDIDevice(const char *args);
|
|
MIDIDevice *CreateOplMIDIDevice(const char* Args);
|
|
MIDIDevice *CreateTimidityMIDIDevice(const char* Args, int samplerate);
|
|
MIDIDevice *CreateTimidityPPMIDIDevice(const char *Args, int samplerate);
|
|
MIDIDevice *CreateWildMIDIDevice(const char *Args, int samplerate);
|
|
|
|
#ifdef _WIN32
|
|
MIDIDevice* CreateWinMIDIDevice(int mididevice);
|
|
#endif
|
|
|
|
#ifdef __linux__
|
|
MIDIDevice* CreateAlsaMIDIDevice(int mididevice);
|
|
#endif
|