Efficient parametric surface binning based on control points

A method comprising:

• receiving a display screen having a parametric surface;
• transforming control points for said parametric surface on a per surface basis, wherein said parametric surface is circumscribed with a bounding box defined by a cubic Bezier curve;
• determining extent of said control points for said parametric surface on said per surface basis;
• tessellating said display screen into a plurality of tiles;
• determining all tiles said extent intersects;
• binning said parametric surface on said per surface basis, wherein data for a plurality of control points corresponding to said parametric surface are stored to a first tile storage area on a bin-by bin basis;
• and
• rendering said parametric surface.

An apparatus comprising:

• a memory to store data, said data comprising a parametric surface to be displayed;
• a processor coupled to said memory, said processor to process said parametric surface, said processing comprising:
• transforming control points corresponding to said parametric surface on a per surface basis;
• determining extent of said control points for said parametric surface on a per surface basis with a bounding box defined by a cubic Bezier curve;
• and
• a graphics controller coupled to said memory, said graphics controller to perform binning of said parametric surface on a per surface basis, said binning comprising:
• determining a plurality of tiles said extent intersects;
• and
• storing said parametric surface into memory storage bins corresponding to said tiles, wherein said storing comprises writing data for a plurality of control points corresponding to said parametric surface to a first tile storage area on a bin-by-bin basis.

A machine readable medium having embodied thereon a computer program, said computer program being executable by a machine to perform a method comprising:

• transforming control points for a parametric surface on a per surface basis, wherein said parametric surface is circumscribed with a bounding box defined by a cubic Bezier curve;
• determining extent of said control points on a per surface basis;
• determining a plurality of tiles intersected by said extent;
• and
• storing said parametric surface into memory storage bins, wherein said storing comprises writing data for a plurality of control points corresponding to said parametric surface to a first tile storage area on a bin-by bin basis.