//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004-2021 musikcube team
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright notice,
//      this list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//
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//      without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// POSSIBILITY OF SUCH DAMAGE.
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//////////////////////////////////////////////////////////////////////////////

#include "config.h"
#include "WaveOutBuffer.h"
#include "WaveOut.h"
#include <iostream>

WaveOutBuffer::WaveOutBuffer(WaveOut *waveOut)
: waveOut(waveOut)
, buffer(nullptr)
, provider(nullptr)
, reset(false) {
    this->header.dwUser = (DWORD_PTR) this;
    this->header.dwBytesRecorded = 0;
    this->header.dwFlags = 0;
    this->header.dwLoops = 0;
    this->header.lpNext = 0;
    this->header.reserved = 0;
}

void WaveOutBuffer::Initialize() {
}

void WaveOutBuffer::Set(IBuffer *buffer, IBufferProvider *provider) {
    this->Reset();

    this->buffer = buffer;
    this->provider = provider;

    this->header.dwBufferLength = this->buffer->Samples() * sizeof(float);
    this->header.lpData = (LPSTR) this->buffer->BufferPointer();

    MMRESULT result = waveOutPrepareHeader(this->waveOut->waveHandle, &this->header, sizeof(WAVEHDR));
    if (result != MMSYSERR_NOERROR) {
        throw;
    }
}

void WaveOutBuffer::Reset() {
    if (!this->reset) {
        if (this->waveOut->waveHandle && this->header.dwFlags & WHDR_PREPARED) {
            waveOutUnprepareHeader(this->waveOut->waveHandle, &this->header, sizeof(WAVEHDR));
            this->header.dwFlags = WHDR_DONE;
        }

        this->buffer = nullptr;
        this->provider = nullptr;
        this->reset = true;
    }
}

IBufferProvider* WaveOutBuffer::GetBufferProvider() const {
    return this->provider;
}

IBuffer* WaveOutBuffer::GetWrappedBuffer() const {
    return this->buffer;
}

WaveOutBuffer::~WaveOutBuffer() {
    this->Reset();
}

bool WaveOutBuffer::WriteToOutput() {
    MMRESULT result = waveOutWrite(this->waveOut->waveHandle, &this->header, sizeof(WAVEHDR));

    if (result == MMSYSERR_NOERROR) {
        return true;
    }

    return false;
}

