public override void UpdateSurface(CommandList commandList, Texture texture)
{
OculusOvr.SetQuadLayerParams(OverlayPtr, ref Position, ref Rotation, ref SurfaceSize, FollowHeadRotation);
var index = OculusOvr.GetCurrentQuadLayerTargetIndex(ovrSession, OverlayPtr);
commandList.Copy(texture, textures[index]);
}
public override void Commit(CommandList commandList, Texture renderFrame)
{
var index = OculusOvr.GetCurrentTargetIndex(ovrSession);
commandList.Copy(renderFrame, textures[index]);
overlayPtrs = overlays.Where(x => x.Enabled).Select(x => x.OverlayPtr).ToArray();
OculusOvr.CommitFrame(ovrSession, overlayPtrs.Length, overlayPtrs);
}
/// <summary>
/// Copies the content of this buffer from GPU memory to a CPU memory using a specific staging resource.
/// </summary>
/// <param name="stagingTexture">The staging buffer used to transfer the buffer.</param>
/// <param name="toData">To data pointer.</param>
/// <exception cref="System.ArgumentException">When strides is different from optimal strides, and TData is not the same size as the pixel format, or Width * Height != toData.Length</exception>
/// <remarks>
/// This method is only working when called from the main thread that is accessing the main <see cref="GraphicsDevice"/>.
/// </remarks>
public void GetData(CommandList commandList, Buffer stagingTexture, DataPointer toData)
{
// Check size validity of data to copy to
if (toData.Size > this.Description.SizeInBytes)
{
throw new ArgumentException("Length of TData is larger than size of buffer");
}
// Copy the texture to a staging resource
if (!ReferenceEquals(this, stagingTexture))
{
commandList.Copy(this, stagingTexture);
}
// Map the staging resource to a CPU accessible memory
var mappedResource = commandList.MapSubresource(stagingTexture, 0, MapMode.Read);
Utilities.CopyMemory(toData.Pointer, mappedResource.DataBox.DataPointer, toData.Size);
// Make sure that we unmap the resource in case of an exception
commandList.UnmapSubresource(mappedResource);
}
