Axiom.RenderSystems.OpenGLES.GLESRenderSystem.SetViewport C# (CSharp) Method

		public override void SetViewport( Viewport viewport )
		{
			if ( viewport != activeViewport || viewport.IsUpdated )
			{
				RenderTarget target = viewport.Target;
				SetRenderTarget( target );
				activeViewport = viewport;

				int x, y, w, h;
				w = viewport.ActualWidth;
				h = viewport.ActualHeight;
				x = viewport.ActualLeft;
				y = viewport.ActualTop;

				if ( !target.RequiresTextureFlipping )
				{
					// Convert "upper-left" corner to "lower-left"
					y = target.Height - h - y;
				}

				OpenGL.Viewport( x, y, w, h );
				GLESConfig.GlCheckError( this );
				// Configure the viewport clipping
				OpenGL.Scissor( x, y, w, h );
				GLESConfig.GlCheckError( this );
				viewport.IsUpdated = false;

			}
		}