using System;
using System.Runtime.InteropServices;

namespace AutoFocusTool.Camera
{
    /// <summary>
    /// 相机采集参数结构体。布局必须与 mvcapi.dll 约定完全一致（顺序敏感），
    /// 抄自原工程 ivf_tl_CameraHelper\CapInfoStruct.cs，勿改字段顺序。
    /// </summary>
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    public struct CapInfoStruct
    {
        /// <summary>指向 Raw Data 的指针</summary>
        [MarshalAs(UnmanagedType.SysInt)]
        public IntPtr Buffer;

        /// <summary>捕获窗口高度</summary>
        [MarshalAs(UnmanagedType.U4)]
        public int Height;

        /// <summary>捕获窗口宽度</summary>
        [MarshalAs(UnmanagedType.U4)]
        public int Width;

        /// <summary>捕获窗口水平偏移</summary>
        [MarshalAs(UnmanagedType.U4)]
        public int HorizontalOffset;

        /// <summary>捕获窗口垂直偏移</summary>
        [MarshalAs(UnmanagedType.U4)]
        public int VerticalOffset;

        /// <summary>曝光时间（单位：100us）</summary>
        [MarshalAs(UnmanagedType.U4)]
        public int Exposure;

        /// <summary>Gain[0]红 Gain[1]绿 Gain[2]蓝，0-255</summary>
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
        public byte[] Gain;

        /// <summary>命令参数位</summary>
        public byte Control;

        /// <summary>binning 等保留位</summary>
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
        public byte[] Reserved;
    }
}