public static void SaveToFile(Texture texture, string fileName, SysDraw.PixelFormat format = SysDraw.PixelFormat.Format32bppArgb)
{
using (var bitmap = SaveToBitmap(texture, format))
{
bitmap.Save(fileName);
}
}
public static PixelInternalFormat SelectInternalPixelFormat(SysDraw.PixelFormat pixelFormat)
{
switch (pixelFormat)
{
case SysDraw.PixelFormat.Format8bppIndexed: return(PixelInternalFormat.Luminance);
case SysDraw.PixelFormat.Format24bppRgb: return(PixelInternalFormat.Rgb);
case SysDraw.PixelFormat.Format32bppArgb: return(PixelInternalFormat.Rgba);
default: throw new FileLoadException("Wrong pixel format " + pixelFormat.ToString());
}
}
public static PixelFormat SelectPixelFormat(SysDraw.PixelFormat pixelFormat)
{
switch (pixelFormat)
{
case SysDraw.PixelFormat.Format8bppIndexed: return(PixelFormat.Red);
case SysDraw.PixelFormat.Format24bppRgb: return(PixelFormat.Bgr);
case SysDraw.PixelFormat.Format32bppArgb: return(PixelFormat.Bgra);
default: throw new FileLoadException("Wrong pixel format " + pixelFormat.ToString());
}
}
public static Bitmap SaveToBitmap(Texture texture, SysDraw.PixelFormat format = SysDraw.PixelFormat.Format32bppArgb)
{
try
{
var bmp = new Bitmap(texture.Width, texture.Height);
texture.Activate();
var data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), SysDraw.ImageLockMode.WriteOnly, format);
GL.GetTexImage(TextureTarget.Texture2D, 0, SelectPixelFormat(format), PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
texture.Deactivate();
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
return(bmp);
}
catch
{
texture.Deactivate();
return(null);
}
}