MidiBuffer.h

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/*
  ==============================================================================
 
   This file is part of the Water library.
   Copyright (c) 2016 ROLI Ltd.
   Copyright (C) 2017-2022 Filipe Coelho <falktx@falktx.com>
 
   Permission is granted to use this software under the terms of the ISC license
   http://www.isc.org/downloads/software-support-policy/isc-license/
 
   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.
 
   THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD
   TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
   FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
   OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
   USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
   OF THIS SOFTWARE.
 
  ==============================================================================
*/
 
#ifndef WATER_MIDIBUFFER_H_INCLUDED
#define WATER_MIDIBUFFER_H_INCLUDED
 
#include "../containers/Array.h"
 
namespace water {
 
//==============================================================================
class MidiBuffer
{
public:
    //==============================================================================
    MidiBuffer() noexcept;

    explicit MidiBuffer (const MidiMessage& message) noexcept;

    MidiBuffer (const MidiBuffer&) noexcept;

    MidiBuffer& operator= (const MidiBuffer&) noexcept;

    ~MidiBuffer();
 
    //==============================================================================
    void clear() noexcept;

    void clear (int start, int numSamples);

    bool isEmpty() const noexcept;

    int getNumEvents() const noexcept;

    void addEvent (const MidiMessage& midiMessage, int sampleNumber);

    void addEvent (const void* rawMidiData,
                   int maxBytesOfMidiData,
                   int sampleNumber);

    void addEvents (const MidiBuffer& otherBuffer,
                    int startSample,
                    int numSamples,
                    int sampleDeltaToAdd);

    int getFirstEventTime() const noexcept;

    int getLastEventTime() const noexcept;
 
    //==============================================================================
    void swapWith (MidiBuffer&) noexcept;

    void ensureSize (size_t minimumNumBytes);
 
    //==============================================================================
    class Iterator
    {
    public:
        //==============================================================================
        Iterator (const MidiBuffer&) noexcept;

        ~Iterator() noexcept;
 
        //==============================================================================
        void setNextSamplePosition (int samplePosition) noexcept;

        bool getNextEvent (MidiMessage& result,
                           int& samplePosition) noexcept;

        bool getNextEvent (const uint8* &midiData,
                           int& numBytesOfMidiData,
                           int& samplePosition) noexcept;
 
    private:
        //==============================================================================
        const MidiBuffer& buffer;
        const uint8* data;
 
        CARLA_DECLARE_NON_COPYABLE (Iterator)
    };

    Array<uint8> data;
};
 
}
 
#endif // WATER_MIDIBUFFER_H_INCLUDED