//#define Win

using System.Runtime.InteropServices;

namespace EC.Util.CameraSDK;

public class PlayCtrlSdk
{
    #region Fields

#if Win
    public const string LibSdkPath = @"./libs/hik/PlayCtrl.dll";
#else
    public const string LibSdkPath = @"./libs/hik/libPlayCtrl.so";
#endif

    #endregion Fields

    static PlayCtrlSdk()
    {
    }

    #region Sdk Struct

    public struct FRAME_INFO
    {
        public int nWidth;
        public int nHeight;
        public int nStamp;
        public int nType;
        public int nFrameRate;
        public uint dwFrameNum;
    }

    #endregion Sdk Struct

    #region Sdk Method

    public static void BuildException(ICameraSdk cameraSdk, int nPort)
    {
        string err = $"PlayCtrlSdk failed, error code={PlayM4_GetLastError(nPort)}";
        throw CameraException.New(cameraSdk.CameraInfo, -1, err);
    }

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_GetPort(ref int nPort);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_FreePort(int nPort);

    [DllImport(LibSdkPath)]
    public static extern uint PlayM4_GetLastError(int nPort);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_SetStreamOpenMode(int nPort, uint nMode);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_OpenStream(int nPort, IntPtr pFileHeadBuf, uint nSize, uint nBufPoolSize);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_CloseStream(int nPort);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_SetDisplayBuf(int nPort, uint nNum);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_InputData(int nPort, IntPtr pBuf, uint nSize);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_Play(int nPort, IntPtr hWnd);

    [DllImport(LibSdkPath)]
    public static extern bool PlayM4_Stop(int nPort);

    #endregion Sdk Method
}