private async Task ApplyImageFilter(bool parallel)
{
int stride = _image.PixelWidth * 4;
lblError.Visibility = Visibility.Collapsed;
//Do the processing on a background thread so the UI remains responsive
var processingResults = await Task <PixelProcessingResults> .Run(() =>
{
PixelProcessingResults result;
try {
byte[] pixelArray = new byte[_image.PixelHeight * _image.PixelWidth * 4];
_image.CopyPixels(pixelArray, stride, 0);
if (parallel == true)
{
pixelArray = ApplyAntiqueFilterParallel(pixelArray);
}
else
{
pixelArray = ApplyAntiqueFilter(pixelArray);
}
result = new PixelProcessingResults(true, pixelArray);
}
catch (Exception)
{
result = new PixelProcessingResults(false);
}
return(result);
});
if (processingResults.Success)
{
_image = BitmapSource.Create(_image.PixelWidth, _image.PixelHeight, _image.DpiX, _image.DpiY,
PixelFormats.Bgr32, null, processingResults.Pixels, stride);
FullImage.Source = _image;
}
else
{
lblError.Visibility = Visibility.Visible;
}
}
private async Task ApplyImageFilter(bool parallel)
{
int stride = _image.PixelWidth * 4;
lblError.Visibility = Visibility.Collapsed;
//Do the processing on a background thread so the UI remains responsive
var processingResults = await Task<PixelProcessingResults>.Run(() =>
{
PixelProcessingResults result;
try {
byte[] pixelArray = new byte[_image.PixelHeight * _image.PixelWidth * 4];
_image.CopyPixels(pixelArray, stride, 0);
if (parallel == true)
{
pixelArray = ApplyAntiqueFilterParallel(pixelArray);
}
else
{
pixelArray = ApplyAntiqueFilter(pixelArray);
}
result = new PixelProcessingResults(true, pixelArray);
}
catch (Exception)
{
result = new PixelProcessingResults(false);
}
return result;
});
if (processingResults.Success)
{
_image = BitmapSource.Create(_image.PixelWidth, _image.PixelHeight, _image.DpiX, _image.DpiY,
PixelFormats.Bgr32, null, processingResults.Pixels, stride);
FullImage.Source = _image;
}
else
{
lblError.Visibility = Visibility.Visible;
}
}
