public static byte[] GrabScreenshot(MainWindow game, int frontbuffer, bool yflip = false)
{
if (GraphicsContext.CurrentContext == null)
{
throw new GraphicsContextMissingException();
}
var backbuffer = game.MSAABuffer.Framebuffer;
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.ReadFramebuffer, backbuffer);
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.DrawFramebuffer, frontbuffer);
if (yflip) //Screenshots are captured upside-down for some reason but this is corrected during video encoding, so flip here for a correctly oriented screenshot
{
SafeFrameBuffer.BlitFramebuffer(0, 0, game.RenderSize.Width, game.RenderSize.Height,
0, game.RenderSize.Height, game.RenderSize.Width, 0,
ClearBufferMask.ColorBufferBit, BlitFramebufferFilter.Nearest);
}
else
{
SafeFrameBuffer.BlitFramebuffer(0, 0, game.RenderSize.Width, game.RenderSize.Height,
0, 0, game.RenderSize.Width, game.RenderSize.Height,
ClearBufferMask.ColorBufferBit, BlitFramebufferFilter.Nearest);
}
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.ReadFramebuffer, frontbuffer);
GL.ReadPixels(0, 0, game.RenderSize.Width, game.RenderSize.Height,
OpenTK.Graphics.OpenGL.PixelFormat.Bgr, PixelType.UnsignedByte, _screenshotbuffer);
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.Framebuffer, backbuffer);
return(_screenshotbuffer);
}
public static byte[] GrabScreenshot(MainWindow game, int frontbuffer)
{
if (GraphicsContext.CurrentContext == null)
{
throw new GraphicsContextMissingException();
}
var backbuffer = game.MSAABuffer.Framebuffer;
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.ReadFramebuffer, backbuffer);
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.DrawFramebuffer, frontbuffer);
SafeFrameBuffer.BlitFramebuffer(0, 0, game.RenderSize.Width, game.RenderSize.Height,
0, 0, game.RenderSize.Width, game.RenderSize.Height,
ClearBufferMask.ColorBufferBit, BlitFramebufferFilter.Nearest);
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.ReadFramebuffer, frontbuffer);
GL.ReadPixels(0, 0, game.RenderSize.Width, game.RenderSize.Height,
OpenTK.Graphics.OpenGL.PixelFormat.Bgr, PixelType.UnsignedByte, _screenshotbuffer);
SafeFrameBuffer.BindFramebuffer(FramebufferTarget.Framebuffer, backbuffer);
return(_screenshotbuffer);
}