// Get VideoFrame
unsafe public void *GetVideoFramePointer()
{
deckLinkOutput.CreateVideoFrame(1920, 1080, 1920 * 4, _BMDPixelFormat.bmdFormat8BitBGRA, _BMDFrameFlags.bmdFrameFlagFlipVertical, out videoFrame);
IntPtr frameBytes;
videoFrame.GetBytes(out frameBytes);
return(frameBytes.ToPointer());
}
public void VideoInputFrameArrived(IDeckLinkVideoInputFrame videoFrame, IDeckLinkAudioInputPacket audioPacket)
{
this.Lock.AcquireWriterLock(5000);
try
{
FConverter.ConvertFrame(videoFrame, rgbFrame);
rgbFrame.GetBytes(out FData);
System.Runtime.InteropServices.Marshal.ReleaseComObject(videoFrame);
FreshData = true;
}
catch
{
}
finally
{
this.Lock.ReleaseWriterLock();
}
}
public void Initialise(IDeckLink device, ModeRegister.Mode mode, bool useDeviceCallbacks)
{
Stop();
try
{
WorkerThread.Singleton.PerformBlocking(() => {
//--
//attach to device
//
if (device == null)
{
throw (new Exception("No device"));
}
if (mode == null)
{
throw (new Exception("No mode selected"));
}
FDevice = device;
var outputDevice = FDevice as IDeckLinkOutput;
if (outputDevice == null)
{
throw (new Exception("Device does not support output"));
}
FOutputDevice = outputDevice;
//
//--
//--
//set memory allocator
//
FOutputDevice.SetVideoOutputFrameMemoryAllocator(FMemoryAllocator);
//
//--
//--
//select mode
//
_BMDDisplayModeSupport support;
IDeckLinkDisplayMode displayMode;
FOutputDevice.DoesSupportVideoMode(mode.DisplayModeHandle.GetDisplayMode(), mode.PixelFormat, mode.Flags, out support, out displayMode);
if (support == _BMDDisplayModeSupport.bmdDisplayModeNotSupported)
{
throw (new Exception("Mode not supported"));
}
this.Mode = mode;
this.FWidth = Mode.Width;
this.FHeight = Mode.Height;
Mode.DisplayModeHandle.GetFrameRate(out this.FFrameDuration, out this.FFrameTimescale);
//
//--
//--
//enable the output
//
FOutputDevice.EnableVideoOutput(Mode.DisplayModeHandle.GetDisplayMode(), Mode.Flags);
//
//--
//--
//generate frames
IntPtr data;
FOutputDevice.CreateVideoFrame(FWidth, FHeight, Mode.CompressedWidth * 4, Mode.PixelFormat, _BMDFrameFlags.bmdFrameFlagDefault, out FVideoFrame);
FVideoFrame.GetBytes(out data);
FillBlack(data);
//
//--
//--
//scheduled playback
if (useDeviceCallbacks == true)
{
FOutputDevice.SetScheduledFrameCompletionCallback(this);
this.FFrameIndex = 0;
for (int i = 0; i < (int)this.Framerate; i++)
{
ScheduleFrame(true);
}
FOutputDevice.StartScheduledPlayback(0, 100, 1.0);
}
//
//--
FRunning = true;
});
}
catch (Exception e)
{
this.FWidth = 0;
this.FHeight = 0;
this.FRunning = false;
throw;
}
}
void Draw()
{
//Show the window
_win.Visible = true;
while (_win.Exists)
{
#region FBO Buffer
_fbo.Begin();
//Set the projection type
Matrix4 projection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, _fbo.Width / (float)_fbo.Height, 1.0f, 64.0f);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadMatrix(ref projection);
//Set the 3D view
Matrix4 modelview = Matrix4.LookAt(Vector3.Zero, Vector3.UnitZ, Vector3.UnitY);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadMatrix(ref modelview);
GL.Translate(0f, 0.0f, 3.0f);
GL.Rotate(squareRotx, 1.0f, 0.0f, 0.0f);
GL.Rotate(squareRoty, 0.0f, 1.0f, 0.0f);
_texLogo.Bind();
GL.Begin(BeginMode.Quads);
#region Draw Sqaure
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(-0.5f, -0.5f, 0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(0.5f, -0.5f, 0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(0.5f, 0.5f, 0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(-0.5f, 0.5f, 0.5f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(-0.5f, -0.5f, -0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(-0.5f, 0.5f, -0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(0.5f, 0.5f, -0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(0.5f, -0.5f, -0.5f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(-0.5f, -0.5f, 0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(-0.5f, 0.5f, 0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(-0.5f, 0.5f, -0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(-0.5f, -0.5f, -0.5f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(0.5f, -0.5f, -0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(0.5f, 0.5f, -0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(0.5f, 0.5f, 0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(0.5f, -0.5f, 0.5f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(-0.5f, 0.5f, 0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(0.5f, 0.5f, 0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(0.5f, 0.5f, -0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(-0.5f, 0.5f, -0.5f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex3(-0.5f, -0.5f, 0.5f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex3(-0.5f, -0.5f, -0.5f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex3(0.5f, -0.5f, -0.5f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex3(0.5f, -0.5f, 0.5f);
#endregion
GL.End();
//Create a Buffer and store the frame
IntPtr buffer;
_videoFrame.GetBytes(out buffer);
GL.ReadPixels(0, 0, 1280, 720, PixelFormat.Bgra, PixelType.UnsignedInt8888Reversed, buffer);
_fbo.End();
#endregion
int width = _win.Size.Width;
int height = _win.Size.Height;
#region Back Buffer
GL.Viewport(0, 0, width, height);
//Set projection to 2D plane
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.Ortho(0, width, height, 0, -1, 1);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
//Draw a full screen Quad with the FBO texture
_fbo.ColorTexture.Bind();
//Draw the framebuffer as a quad to a screen
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(0, 1); GL.Vertex2(0, 0);
GL.TexCoord2(0, 0); GL.Vertex2(0, height);
GL.TexCoord2(1, 0); GL.Vertex2(width, height);
GL.TexCoord2(1, 1); GL.Vertex2(width, 0);
GL.End();
Texture.Unbind();
#endregion
Thread.Sleep(5);
_context.SwapBuffers();
_win.ProcessEvents();
}
}
