public ImageBuffer(Size size, ConsolePixel[,] buffer, IReadOnlyDictionary<string, object> properties)
{
_buffer = buffer;
_properties = properties;
Size = size;
}
private IImageBuffer BuildBuffer(Size size, Bitmap bmp, FrameDimension frameDimension, int idx)
{
ConsolePixel[,] buffer = new ConsolePixel[size.Height, size.Width];
bmp.SelectActiveFrame(frameDimension, idx);
for (int i = 0; i < size.Height; i++)
{
for (int j = 0; j < size.Width; j++)
{
Color c = _sampler.GetSampleColor(size, bmp, j, i, _transparencyColor);
ConsolePixel pixel = _converter.CreatePixel(c);
buffer[i, j] = pixel;
}
}
Dictionary<string, object> properties = null;
// TODO: Move PropertyItem parsing out into separate classes? Do existing libraries exist that might
// do this for us?
// TODO: Are there any other per-frame properties we want?
PropertyItem gifFrameTimeProp = bmp.PropertyItems.FirstOrDefault(pi => pi.Id == 0x5100);
if (gifFrameTimeProp != null)
{
byte[] b = gifFrameTimeProp.Value;
long value = b[idx * 4] | (b[(idx * 4) + 1] << 8) | (b[(idx * 4) + 2] << 16) | (b[(idx * 4) + 3] << 24);
value = value * 10; // gif frame times are in centi-seconds, not milli-seconds
properties = new Dictionary<string, object>();
properties.Add(ImagePropertyConstants.GifFrameTimeMs, value);
}
return new ImageBuffer(size, buffer, properties);
}