public void RecreateCaptureZone()
{
if (PropertiesOpen || _creatingCaptureZone)
{
return;
}
try
{
_creatingCaptureZone = true;
RemoveCaptureZone();
AmbilightCaptureProperties props = Properties.Capture;
bool defaulting = props.GraphicsCardDeviceId == 0 || props.GraphicsCardVendorId == 0 || props.DisplayName.CurrentValue == null;
GraphicsCard?graphicsCard = _screenCaptureService.GetGraphicsCards()
.Where(gg => defaulting || (gg.VendorId == props.GraphicsCardVendorId) && (gg.DeviceId == props.GraphicsCardDeviceId))
.Cast <GraphicsCard?>()
.FirstOrDefault();
if (graphicsCard == null)
{
return;
}
_display = _screenCaptureService.GetDisplays(graphicsCard.Value)
.Where(d => defaulting || d.DeviceName.Equals(props.DisplayName.CurrentValue, StringComparison.OrdinalIgnoreCase))
.Cast <Display?>()
.FirstOrDefault();
if (_display == null)
{
return;
}
// If we're defaulting or always capturing full screen, apply the display to the properties
if (defaulting || props.CaptureFullScreen.CurrentValue)
props.ApplyDisplay(_display.Value, true); }
// Stick to a valid region within the display
int width = Math.Min(_display.Value.Width, props.Width);
int height = Math.Min(_display.Value.Height, props.Height);
int x = Math.Min(_display.Value.Width - width, props.X);
int y = Math.Min(_display.Value.Height - height, props.Y);
_captureZone = _screenCaptureService.GetScreenCapture(_display.Value).RegisterCaptureZone(x, y, width, height, props.DownscaleLevel);
_captureZone.AutoUpdate = false; //TODO DarthAffe 09.04.2021: config?
_captureZone.BlackBars.Threshold = props.BlackBarDetectionThreshold;
}
public override unsafe void Render(SKCanvas canvas, SKRect bounds, SKPaint paint)
{
if (_captureZone == null)
{
return;
}
AmbilightCaptureProperties properties = Properties.Capture;
lock (_captureZone.Buffer)
{
ReadOnlySpan <byte> capture = _captureZone.Buffer;
if (capture.IsEmpty)
{
return;
fixed(byte *ptr = capture)
{
using SKImage image = SKImage.FromPixels(new SKImageInfo(_captureZone.Width, _captureZone.Height, SKColorType.Bgra8888, SKAlphaType.Opaque), new IntPtr(ptr),
_captureZone.Stride);
if (properties.BlackBarDetectionTop || properties.BlackBarDetectionBottom || properties.BlackBarDetectionLeft || properties.BlackBarDetectionRight)
{
canvas.DrawImage(image, new SKRect(properties.BlackBarDetectionLeft ? _captureZone.BlackBars.Left : 0,
properties.BlackBarDetectionTop ? _captureZone.BlackBars.Top : 0,
_captureZone.Width - (properties.BlackBarDetectionRight ? _captureZone.BlackBars.Right : 0),
_captureZone.Height - (properties.BlackBarDetectionBottom ? _captureZone.BlackBars.Bottom : 0)),
bounds, paint);
}
else
{
canvas.DrawImage(image, bounds, paint);
}
}
}
}
