/// <summary>
/// Draws the given frame to the video.
/// </summary>
/// <param name="device">The device on which the given framebuffer is created.</param>
/// <param name="uploadedTexture">The texture which should be added to the video.</param>
public void DrawFrame(EngineDevice device, MemoryMappedTexture <int> uploadedTexture)
{
try
{
device.EnsureNotNull(nameof(device));
uploadedTexture.EnsureNotNull(nameof(uploadedTexture));
if (!_hasStarted)
{
throw new SeeingSharpGraphicsException($"{nameof(SeeingSharpVideoWriter)} is not started!");
}
if (_hasFinished)
{
throw new SeeingSharpGraphicsException($"{nameof(SeeingSharpVideoWriter)} has already finished before!");
}
// Check for correct image size
if (_videoSize != uploadedTexture.PixelSize)
{
throw new SeeingSharpGraphicsException("Size has changed during recording!");
}
this.DrawFrameInternal(device, uploadedTexture);
}
catch (Exception ex)
{
_drawException = ex;
}
}
/// <summary>
/// Gets the bitmap for the given device..
/// </summary>
/// <param name="engineDevice">The engine device.</param>
internal override D2D.ID2D1Bitmap GetBitmap(EngineDevice engineDevice)
{
// Check for disposed state
if (this.IsDisposed)
{
throw new ObjectDisposedException(this.GetType().Name);
}
GraphicsCore.EnsureGraphicsSupportLoaded();
var result = _loadedBitmaps[engineDevice.DeviceIndex];
if (result == null)
{
using var mapped = new MemoryMappedTexture <int>(_bitmapSize);
// Load the bitmap initially
result = engineDevice.FakeRenderTarget2D !.CreateBitmap(
new Size(_bitmapSize.Width, _bitmapSize.Height),
mapped.Pointer, mapped.Width * 4,
new D2D.BitmapProperties(_pixelFormat, (float)_dpiX, (float)_dpiY));
_loadedBitmaps[engineDevice.DeviceIndex] = result;
engineDevice.RegisterDeviceResource(this);
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="StandardTextureResource" /> class.
/// </summary>
internal StandardTextureResource(MemoryMappedTexture <int> inMemoryTexture)
{
inMemoryTexture.EnsureNotNull(nameof(inMemoryTexture));
_inMemoryTexture = inMemoryTexture;
}
/// <summary> /// Draws the given frame to the video. /// </summary> /// <param name="device">The device on which the given framebuffer is created.</param> /// <param name="uploadedTexture">The texture which should be added to the video.</param> protected abstract void DrawFrameInternal(EngineDevice device, MemoryMappedTexture <int> uploadedTexture);
