private static UniversalBitmap NormalizeBitmap(UniversalBitmap bitmap)
{
int oldWidth = bitmap.Width;
int oldHeight = bitmap.Height;
int newWidth = CrayonWrapper.nextPowerOf2(oldWidth);
int newHeight = CrayonWrapper.nextPowerOf2(oldHeight);
if (newWidth == oldWidth &&
newHeight == oldHeight)
{
return(bitmap);
}
UniversalBitmap newBmp = new UniversalBitmap(newWidth, newHeight);
newBmp.GetActiveDrawingSession().Draw(bitmap, 0, 0, 0, 0, oldWidth, oldHeight).Flush();
return(newBmp);
}
public static void SendImageToRenderer(object frameObj, int id, object nativeImageData, int x, int y, int width, int height)
{
NoriFrame frame = (NoriFrame)frameObj;
UniversalBitmap atlas = (UniversalBitmap)nativeImageData;
UniversalBitmap cropped;
if (atlas.Width == width && atlas.Height == height)
{
cropped = atlas;
}
else
{
cropped = new UniversalBitmap(width, height);
UniversalBitmap.DrawingSession session = cropped.GetActiveDrawingSession();
session.Draw(atlas, 0, 0, x, y, width, height);
session.Flush();
}
byte[] pngBytes = cropped.GetBytesAsPng();
string base64Image = UniversalBitmap.ToBase64("data:image/png;base64,", pngBytes);
frame.SendImageToBrowser(id, width, height, base64Image);
}