DSA framebuffers

#include <oglplus/dsa/framebuffer.hpp>

Operations with direct state access

template <>
class ObjectOps<tag::DirectState, tag::Framebuffer>
 : public ObjZeroOps<tag::DirectState, tag::Framebuffer> 
{
public:
	struct Property
	{
		typedef OneOf<
			FramebufferBuffer,
			FramebufferAttachment,
			FramebufferColorAttachment
		> Buffer; 

		typedef OneOf<
			FramebufferAttachment,
			FramebufferColorAttachment
		> Attachment; 

		typedef FramebufferStatus Status;
	};

	void Bind(FramebufferTarget target);

	FramebufferStatus Status(FramebufferTarget target) const; 
	bool IsComplete(FramebufferTarget target) const; 
	void Complete(FramebufferTarget target) const; 

	void AttachRenderbuffer(
		Property::Attachment attachment,
		RenderbufferName renderbuffer
	); 
	void AttachColorRenderbuffer(
		FramebufferColorAttachmentNumber attachment_no,
		RenderbufferName renderbuffer
	); 

	void AttachTexture(
		Property::Attachment attachment,
		TextureName texture,
		GLint level
	); 
	void AttachColorTexture(
		FramebufferColorAttachmentNumber attachment_no,
		TextureName texture,
		GLint level
	); 

	void AttachTextureLayer(
		Property::Attachment attachment,
		TextureName texture,
		GLint level,
		GLint layer
	); 
};

	Indirectly inherits from ObjCommonOps<tag::Framebuffer>.
	Enumerations specifying framebuffer output buffer.
	Enumerations specifying framebuffer attachments.
	Returns the status of `this` framebuffer for the specified `target`. See `glCheckNamedFramebufferStatus`.
	Returns true if `this` framebuffer is complete for the specified `target`. See `glCheckNamedFramebufferStatus`.
	Throws an IncompleteFramebuffer exception if `this` framebuffer is not complete.
	Attaches a `renderbuffer` object as an `attachment` to `this` framebuffer. See `glNamedFramebufferRenderbuffer`.
	Attaches a `renderbuffer` object as a color attachment with index specified by `attachment_no` to `this` framebuffer.
	Attaches the specified `texture` `level` as an attachment to `this` framebuffer. See `glNamedFramebufferTexture`.
	Attaches the specified `texture` `level` as a color attachment with index specified by `attachment_no` to `this` framebuffer.
	Attaches the `level` (or `level`'s `layer`) of a 1D, 2D or 3D `texture` as an `attachment` of `this` framebuffer. See `glNamedFramebufferTextureLayer`.

Definition

typedef ObjectOps<tag::DirectState, tag::Framebuffer>
	DSAFramebufferOps;

typedef Object<DSAFramebufferOps> DSAFramebuffer;

Syntax sugar operators

struct DSAFramebufferOpsAndAttch { }; 

DSAFramebufferOpsAndAttch operator << (
	DSAFramebufferOps& fbo,
	DSAFramebufferOps::Property::Attachment attch
);

DSAFramebufferOps& operator << (
	DSAFramebufferOps& fbo,
	FramebufferTarget target
); 

DSAFramebufferOps& operator << (
	DSAFramebufferOpsAndAttch&& faa,
	TextureName tex
); 

DSAFramebufferOps& operator << (
	DSAFramebufferOpsAndAttch&& faa,
	RenderbufferName rbo
);

	Helper class used with syntax-sugar operators. Stores a framebuffer name and attachment.
	Equivalent to `fbo.Bind(target)`.
	Attaches `tex` to the attachment of the framebuffer specified by `faa`.
	Attaches `rbo` to the attachment of the framebuffer specified by `faa`.