Dalsa 8K彩色相机Camera link C#采图

一个采图工具，所以界面做的很简单。

        private SapAcquisition m_Acquisition;
        private SapBuffer m_Buffers;
        private SapAcqToBuf m_Xfer;
        private SapView m_View;
        private SapColorConversion m_ColorConv;
        private SapProcessing m_Pro;
        private SapLocation m_ServerLocation;
        private String m_ConfigFileName;
        private String m_Executetime;
        private bool m_IsSignalDetected;
        private bool m_online;
        public bool CreateNewObjects()
        {
            m_ServerLocation = new SapLocation("Xtium-CL_MX4_1", 2);//第一位是显卡名称，第二位是选择模式的第几项
            m_ConfigFileName = "22N_No_Name_Default_Default.ccf";//配置文件路径
            m_Acquisition = new SapAcquisition(m_ServerLocation, m_ConfigFileName);
            if (SapBuffer.IsBufferTypeSupported(m_ServerLocation, SapBuffer.MemoryType.ScatterGather))
                m_Buffers = new SapBufferWithTrash(2, m_Acquisition, SapBuffer.MemoryType.ScatterGather);
            else
                m_Buffers = new SapBufferWithTrash(2, m_Acquisition, SapBuffer.MemoryType.ScatterGatherPhysical);
            m_Xfer = new SapAcqToBuf(m_Acquisition, m_Buffers);
            m_ColorConv = new SapColorConversion(m_Acquisition, m_Buffers);
            m_Xfer.Pairs[0].EventType = SapXferPair.XferEventType.EndOfFrame;

            m_Xfer.XferNotify += new SapXferNotifyHandler(xfer_XferNotify);
            m_Xfer.XferNotifyContext = this;

            m_Pro = new SapMyProcessing(m_Buffers, m_ColorConv, new SapProcessingDoneHandler(ProCallback), this);

            if (!CreateObjects())
            {
                DestroyObjects();
                DisposeObjects();

                return false;
            }
            EnableSignalStatus();
            return true;
        }

       //这项函数官方demo是用来显示帧率的，但是我这里不需要所以就没写功能，但是要加这个函数，否则连续采集的时候就只会拍两张照片。
        static void ProCallback(object sender, SapProcessingDoneEventArgs pInfo)
        {
            Form1 demo = pInfo.Context as Form1;

        }
        private bool CreateObjects()
        {
            // Create acquisition object
            if (m_Acquisition != null && !m_Acquisition.Initialized)
            {
                if (m_Acquisition.Create() == false)
                {
                    DestroyObjects();
                    return false;
                }
            }
            // Create buffer object
            if (m_Buffers != null && !m_Buffers.Initialized)
            {
                if (m_Buffers.Create() == false)
                {
                    DestroyObjects();
                    return false;
                }
                m_Buffers.Clear();
            }

            // Create color conversion object
            if (m_ColorConv != null && !m_ColorConv.Initialized)
            {
                if (m_ColorConv.Create() == false)
                {
                    DestroyObjects();
                    return false;
                }
            }

            // Create view object
            if (m_View != null && !m_View.Initialized)
            {
                if (m_ColorConv != null && m_ColorConv.Initialized)
                {
                    // Set buffer to be viewed
                    // When using hardware color decoder, view the acquired RGB buffer,
                    // otherwise, for software color conversion, view the converted RGB buffer.
                    SapBuffer convBuffer = m_ColorConv.OutputBuffer;
                    if (convBuffer != null && convBuffer.Initialized)
                        m_View.Buffer = convBuffer;
                    else
                        m_View.Buffer = m_Buffers;
                }

                if (m_View.Create() == false)
                {
                    DestroyObjects();
                    return false;
                }
            }
            // Create Xfer object
            if (m_Xfer != null && !m_Xfer.Initialized)
            {
                if (m_Xfer.Create() == false)
                {
                    DestroyObjects();
                    return false;
                }
                m_Xfer.AutoEmpty = false;
            }

            // Create processing object
            if (m_Pro != null && !m_Pro.Initialized)
            {
                if (!m_Pro.Create())
                {
                    DestroyObjects();
                    return false;
                }

                m_Pro.AutoEmpty = true;
            }
            return true;

        }
        private void DestroyObjects()
        {
            if (m_Xfer != null && m_Xfer.Initialized)
                m_Xfer.Destroy();
            if (m_Pro != null && m_Pro.Initialized)
                m_Pro.Destroy();
            if (m_View != null && m_View.Initialized)
                m_View.Destroy();
            if (m_ColorConv != null && m_ColorConv.Initialized)
                m_ColorConv.Destroy();
            if (m_Buffers != null && m_Buffers.Initialized)
                m_Buffers.Destroy();
            if (m_Acquisition != null && m_Acquisition.Initialized)
                m_Acquisition.Destroy();
        }
        private void DisposeObjects()
        {
            if (m_Xfer != null)
            { m_Xfer.Dispose(); m_Xfer = null; }
            if (m_Pro != null)
            { m_Pro.Dispose(); m_Pro = null; }
            if (m_View != null)
            { m_View.Dispose(); m_View = null; }
            if (m_ColorConv != null)
            { m_ColorConv.Dispose(); m_ColorConv = null; }
            if (m_Buffers != null)
            { m_Buffers.Dispose(); m_Buffers = null; }
            if (m_Acquisition != null)
            { m_Acquisition.Dispose(); m_Acquisition = null; }
        }
        private void EnableSignalStatus()
        {
            if (m_Acquisition != null)
            {
                m_IsSignalDetected = (m_Acquisition.SignalStatus != SapAcquisition.AcqSignalStatus.None);
                // if (m_IsSignalDetected == false)
                //  StatusLabelInfo.Text = "Online... No camera signal detected";
                //  else
                //   StatusLabelInfo.Text = "Online... Camera signal detected";
                m_Acquisition.SignalNotifyEnable = true;

            }
        }

        static void xfer_XferNotify(object sender, SapXferNotifyEventArgs argsNotify)
        {
            Form1 demo = argsNotify.Context as Form1;
            // If grabbing in trash buffer, do not display the image, update the
            // appropriate number of frames on the status bar instead
            if (argsNotify.Trash)
                return;
            // Refresh view
            else
            {
                demo.TakeImage();
                demo.m_Pro.ExecuteNext();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            m_Xfer.Grab();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            m_Xfer.Freeze();
        }

　　　　　private void TakeImage()
        {
            try
            {
                SapBuffer m_pBuffer;
                int m_StartFrame;
             //   SapBuffer.FileFormat[] m_StandardTypes;
                m_pBuffer = m_Buffers;
                m_StartFrame = m_pBuffer.Index; string m_Option = "-format jpeg -quality 30";
                m_Buffers.Save(textBox2.Text, m_Option, m_StartFrame,0);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message.ToString());
            }
        }

　

关于采图，上面用的是官方的SDK方式，因为我采集的图片像素是8K*8K，原图BMP格式有256MB，压缩成30%质量的JPG也还有2.3MB左右。

还有一种方式是用Bitmap来获取图片地址，但是需要注意的一点。

    IntPtr addr;
    int Height = m_Buffers.Height;
    int Width = m_Buffers.Width;
    m_Buffers.GetAddress(out addr);
    bitmap = new Bitmap(Width, Height, Width * 4, System.Drawing.Imaging.PixelFormat.Format32bppRgb, addr);

　　这里的宽度是*4，原因是我的BMP原图图像位深度是32位的。所以保存用Bitmap的方式需要先确定原图的位深度，否则保存图片会出现重影。