public void FrameArrivedDevice(FrameInformation frame)
{
using var _ = _resource.Map();
var resourceArray = _resource.GetMappedArray();
var rgbSize = frame.GetRgba32Size();
var width = frame.Info.Width;
var rgba32Pitch = width * 4;
var rgba32PitchPtr = (IntPtr)rgba32Pitch;
using (var destPtr = CuDeviceMemory.Allocate(rgbSize))
{
frame.DecodeToDeviceRgba32(destPtr);
var memcopy = new CuMemcopy2D
{
SrcMemoryType = CuMemoryType.Device,
SrcDevice = destPtr,
SrcPitch = rgba32PitchPtr,
DstMemoryType = CuMemoryType.Array,
DstArray = resourceArray,
WidthInBytes = rgba32PitchPtr,
Height = (IntPtr)frame.Info.Height
};
memcopy.Memcpy2D();
}
_swap?.Present(1, PresentFlags.None);
}
public unsafe void FrameArrivedHost(FrameInformation frame)
{
var rgbSize = frame.GetRgba32Size();
var width = frame.Info.Width;
var rgba32Pitch = width * 4;
var buffer = _swap.GetBackBuffer <Texture2D>(0);
// TODO: Pool the buffer.
var destHost = new byte[rgbSize];
fixed(byte *destHostPtr = destHost)
{
_device.ImmediateContext.UpdateSubresource(
buffer, 0, null, (IntPtr)destHostPtr, rgba32Pitch, 0);
}
_swap?.Present(1, PresentFlags.None);
}
