protected override Backend.Renderer CreateRenderer(Backend.Context context, Func<Geometry2D.Integer.Size> getSize, Func<TextureType> getType)
{
Renderer result = new Renderer(context, getSize, getType);
result.OnUse += () =>
{
GL.PushAttrib(OpenTK.Graphics.OpenGL.AttribMask.AllAttribBits);
GL.Viewport(0, 0, this.Size.Width, this.Size.Height);
GL.Ortho(0.0, 0.0, 1.0, 1.0, 0.0, 0.0);
GL.MatrixMode(OpenTK.Graphics.OpenGL.MatrixMode.Projection);
GL.PushMatrix();
new Geometry2D.Single.Transform(2.0f / this.Size.Width, 0.0f, 0.0f, 2.0f / this.Size.Height, -1.0f, -1.0f).Load();
GL.MatrixMode(OpenTK.Graphics.OpenGL.MatrixMode.Modelview);
GL.PushMatrix();
GL.LoadIdentity();
GL.Enable(OpenTK.Graphics.OpenGL.EnableCap.Blend);
if (this.Type == TextureType.Rgba)
GL.BlendFunc(OpenTK.Graphics.OpenGL.BlendingFactorSrc.SrcAlpha, OpenTK.Graphics.OpenGL.BlendingFactorDest.OneMinusSrcAlpha);
else
GL.BlendFunc(OpenTK.Graphics.OpenGL.BlendingFactorSrc.One, OpenTK.Graphics.OpenGL.BlendingFactorDest.Zero);
this.FrameBuffer.Use();
Exception.Framebuffer.Check();
};
result.OnUnuse += () =>
{
GL.MatrixMode(OpenTK.Graphics.OpenGL.MatrixMode.Modelview);
GL.PopMatrix();
GL.MatrixMode(OpenTK.Graphics.OpenGL.MatrixMode.Projection);
GL.PopMatrix();
GL.PopAttrib();
GL.Ext.BindFramebuffer(OpenTK.Graphics.OpenGL.FramebufferTarget.FramebufferExt, 0);
Exception.Framebuffer.Check();
};
return result;
}
protected Renderer(Renderer original) :
base(original)
{
}
