mxmusicmanager.h

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#ifndef MXMUSICMANAGER_H
#define MXMUSICMANAGER_H
 
#include "decomp.h"
#include "mxaudiomanager.h"
 
#include <windows.h>
 
// VTABLE: LEGO1 0x100dc930
// SIZE 0x58
 
class MxMusicManager : public MxAudioManager {
public:
    MxMusicManager();
 
    ~MxMusicManager() override;
 
    void Destroy() override; // vtable+18
 
    void SetVolume(MxS32 p_volume) override; // vtable+2c
 
    virtual MxResult Create(MxU32 p_frequencyMS, MxBool p_createThread); // vtable+30
 
    MxBool GetMIDIInitialized() { return m_midiInitialized; }
 
    void GetMIDIVolume(DWORD& p_volume)
    {
        if (midiOutGetVolume((HMIDIOUT) m_midiStreamH, &p_volume)) {
            p_volume = CalculateVolume(100);
        }
    }
 
    MxResult ResetStream();
 
    void ResetBuffer();
 
    MxResult InitializeMIDI(MxU8* p_data, MxS32 p_loopCount);
 
    void DeinitializeMIDI();
 
    void SetMultiplier(MxS32 p_multiplier);
 
private:
    void Destroy(MxBool p_fromDestructor);
 
    MxS32 CalculateVolume(MxS32 p_volume);
 
    void SetMIDIVolume();
 
    static void CALLBACK MidiCallbackProc(HDRVR p_hdrvr, UINT p_uMsg, DWORD p_dwUser, DWORD p_dw1, DWORD p_dw2);
 
    HMIDISTRM m_midiStreamH;     
    MxBool m_midiInitialized;    
    MxU32 m_bufferSize;          
    MxU32 m_bufferCurrentSize;   
    MxU8* m_bufferOffset;        
    MxU8* m_bufferCurrentOffset; 
    MxU32 m_loopCount;           
    MIDIHDR* m_midiHdrP;         
    MxS32 m_multiplier;          
    DWORD m_midiVolume;          
 
protected:
    void Init();
 
    void InitData();
};
 
#endif // MXMUSICMANAGER_H