using System;
using System.Runtime.InteropServices;
using TUCAMAPI;

namespace TUCamera
{
    public class TUCameraDrawMax : TUCameraIFrameProcess
    {
        private TUCamera m_camera;
        private FrameProcesserState m_state = FrameProcesserState.STOP;

        private byte[] pBuf = null;
        private object lockObj = new object();

        public TUCameraDrawMax(TUCamera camera)
        {
            m_camera = camera;
        }

        public void DoProcess(ref TUCAM_FRAME frame)
        {
            if (m_state != FrameProcesserState.PLAY)
            {
                return;
            }

            int nSize = (int)(frame.uiImgSize + frame.usHeader);
            if (pBuf == null || pBuf.Length != nSize)
            {
                pBuf = new byte[nSize];
            }
            Marshal.Copy(frame.pBuffer, pBuf, 0, nSize);
            Buffer.BlockCopy(pBuf, (int)(frame.usHeader), pBuf, 0, (int)(frame.uiImgSize));

            Pause();

            //Console.WriteLine("返回全图buf");
            m_camera.CallbackDrawAll(pBuf, lockObj, frame.ucChannels);
            //Console.WriteLine("返回全图buf结束");
        }

        private int m_roiX = 0;
        private int m_roiY = 0;
        private int m_roiWidth = 0;
        private int m_roiHeight = 0;
        private int m_resolutionW = 0;
        private int m_resolutionH = 0;


        public void Start()
        {
            Console.WriteLine("获取当前ROI保存");
            m_camera.GetROI(ref m_roiX, ref m_roiY, ref m_roiWidth, ref m_roiHeight);
            Console.WriteLine("设置最大ROI------开始");
            m_camera.SetROIFull(ref m_resolutionW, ref m_resolutionH);
            Console.WriteLine("设置最大ROI------结束");
            m_state = FrameProcesserState.PLAY;
        }

        public int GetResolutionW()
        {
            return m_resolutionW;
        }

        public int GetResolutionH()
        {
            return m_resolutionH;
        }


        public void Stop()
        {
            if (m_state != FrameProcesserState.STOP)
            {
                Console.WriteLine("抓取全图------结束");
                Console.WriteLine("恢复原ROI-----开始");
                m_camera.SetROI(ref m_roiX, ref m_roiY, ref m_roiWidth, ref m_roiHeight);
                Console.WriteLine("恢复原ROI-----结束");
                m_state = FrameProcesserState.STOP;
            }

        }

        public void Pause()
        {
            m_state = FrameProcesserState.PAUSE;
        }

        public void Resume()
        {
            m_state = FrameProcesserState.PLAY;
        }

        public FrameProcesserState GetStatus()
        {
            return m_state;
        }

    }
}