/// <summary>
/// Resizes this <see cref="Framebuffer2D"/>.
/// </summary>
/// <param name="width">The new width for the <see cref="Framebuffer2D"/>.</param>
/// <param name="height">The new height for the <see cref="Framebuffer2D"/>.</param>
/// <remarks>This resizes all the framebuffer attachments.</remarks>
public void Resize(uint width, uint height)
{
if (width == Width && height == Height)
{
return;
}
// We go through all the texture attachments and resize them.
for (int i = 0; i < Framebuffer.textureAttachments.Count; i++)
{
if (!(Framebuffer.textureAttachments[i].Texture is Texture2D tex2d))
{
throw new InvalidOperationException("This framebuffer contains non-Texture2D texture attachments, a Resize2D operation is invalid");
}
tex2d.RecreateImage(width, height);
}
// We go through all the renderbuffer attachments and resize them.
for (int i = 0; i < Framebuffer.renderbufferAttachments.Count; i++)
{
// We can't resize renderbuffers, so we dispose them and create new ones.
FramebufferRenderbufferAttachment att = Framebuffer.renderbufferAttachments[i];
Framebuffer.TryDetachRenderbuffer(att.AttachmentPoint, out att);
att.Renderbuffer.Dispose();
Framebuffer.Attach(new RenderbufferObject(Framebuffer.GraphicsDevice, width, height, att.Renderbuffer.Format, att.Renderbuffer.Samples), att.AttachmentPoint);
}
Framebuffer.UpdateFramebufferData();
}
/// <summary>
/// Tries to detach a <see cref="RenderbufferObject"/> attached to the specified point.
/// </summary>
/// <param name="point">The attachment point to check.</param>
/// <param name="attachment">The detached <see cref="RenderbufferObject"/> attachment, if the method returned true.</param>
/// <returns>Returns whether the operation succeded.</returns>
public bool TryDetachRenderbuffer(FramebufferAttachmentPoint point, out FramebufferRenderbufferAttachment attachment)
{
for (int i = 0; i < renderbufferAttachments.Count; i++)
{
if (renderbufferAttachments[i].AttachmentPoint == point)
{
GraphicsDevice.Framebuffer = this;
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, (FramebufferAttachment)point, RenderbufferTarget.Renderbuffer, 0);
attachment = renderbufferAttachments[i];
renderbufferAttachments.RemoveAt(i);
return(true);
}
}
attachment = default;
return(false);
}
/// <summary>
/// Gets a <see cref="RenderbufferObject"/> attachment from this <see cref="FramebufferObject"/>.
/// </summary>
/// <param name="attachmentPoint">The point to look for a renderbuffer attachment at.</param>
/// <param name="attachment">The attachment found.</param>
/// <returns>Whether a renderbuffer attachment was found at the specified attachment point.</returns>
public bool TryGetRenderbufferAttachment(FramebufferAttachmentPoint attachmentPoint, out FramebufferRenderbufferAttachment attachment)
{
for (int i = 0; i < renderbufferAttachments.Count; i++)
{
if (renderbufferAttachments[i].AttachmentPoint == attachmentPoint)
{
attachment = renderbufferAttachments[i];
return(true);
}
}
attachment = default;
return(false);
}
