/// <summary>
/// Copies data from CPU memory to the associated accelerator.
/// </summary>
/// <param name="stream">The stream to use.</param>
public void CopyToAccelerator(AcceleratorStream stream)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
CopyFromView(stream, CPUView.AsLinearView(), 0);
}
/// <summary>
/// Copies data from the associated accelerator into CPU memory.
/// </summary>
/// <param name="stream">The stream to use.</param>
/// <param name="acceleratorMemoryOffset">The source memory offset.</param>
/// <param name="cpuMemoryOffset">the target memory offset.</param>
/// <param name="extent">The extent (number of elements).</param>
public void CopyFromAccelerator(
AcceleratorStream stream,
TIndex acceleratorMemoryOffset,
TIndex cpuMemoryOffset,
LongIndex1 extent)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (!cpuMemoryOffset.InBounds(CPUView.Extent))
{
throw new ArgumentOutOfRangeException(nameof(cpuMemoryOffset));
}
if (!acceleratorMemoryOffset.InBounds(Extent))
{
throw new ArgumentOutOfRangeException(nameof(acceleratorMemoryOffset));
}
if (extent < 1 || extent > Length)
{
throw new ArgumentOutOfRangeException(nameof(extent));
}
var linearSourceIndex =
acceleratorMemoryOffset.ComputeLinearIndex(Extent);
var linearTargetIndex =
cpuMemoryOffset.ComputeLinearIndex(CPUView.Extent);
if (linearSourceIndex + extent > Length ||
linearTargetIndex + extent > CPUView.Length)
{
throw new ArgumentOutOfRangeException(nameof(extent));
}
CopyToView(
stream,
CPUView.GetSubView(cpuMemoryOffset, extent),
linearSourceIndex);
}
private void StartTimer()
{
Device.StartTimer(new TimeSpan(50000), () =>
{
if (!running || GPUView.CanvasSize.Width < 0)
{
return(true);
}
if (lines.Count > 40)
{
lines.Dequeue();
}
// Add new line
lastLine = GetNextLine();
lines.Enqueue(lastLine);
CPUView.InvalidateSurface();
GPUView.InvalidateSurface();
return(true);
});
}
private void OnChkBackgroundChanged(object sender, EventArgs args)
{
CPUView.InvalidateSurface();
GPUView.InvalidateSurface();
}
