using System;
using System.Runtime.InteropServices;

namespace Susurrus.XAudio2
{
    /// <summary>
    /// The XAUDIO2_BUFFER that hands a source voice a run of samples to play.
    /// </summary>
    // xaudio2.h packs every struct to one byte, so the trailing pointer isn't aligned on x64.
    [StructLayout(LayoutKind.Sequential, Pack = 1)]
    public struct XAudio2Buffer
    {
        public const uint EndOfStream = 0x0040;

        /// <summary>
        /// The loop count that repeats until the voice is stopped.
        /// </summary>
        public const uint LoopInfinite = 255;

        public uint Flags;
        public uint AudioBytes;
        public IntPtr AudioData;
        public uint PlayBegin;
        public uint PlayLength;
        public uint LoopBegin;
        public uint LoopLength;
        public uint LoopCount;
        public IntPtr Context;
    }
}