APPARATUS AND METHOD FOR TILE ELIMINATION

摘要

An exemplary embodiment describes a method for tile elimination, including: reading in data of a new tile; reading signature values corresponding to the new tile from a signature value repository; generating signature values for the new tile; comparing the read signature values and the generated signature values of the same tile to determine whether the two sets of signature values being identical; when the two sets of signature values being identical, copying the new tile directly from a tile frame buffer without rendering; otherwise, updating the signature value repository with the generated signature values replacing the stored signature values; rendering the tile; and updating the tile frame buffer with the newly rendered tile.

主权项

1. An apparatus for tile elimination in rendering, comprising:
a front portion pipeline module, a tile-elimination module, a back portion pipeline module, all connected in a pipeline manner; wherein the tile-elimination module further comprising: a tile engine, connected to the front portion pipeline module and to generate a list of arrays indicating the processing elements to be rendered on a tile basis; a signature value computation unit, connected to the front portion pipeline and tile engine for computing signature values from the front portion pipeline module; a signature value repository, connected to the signature value computation unit for storing the signature values computed by the signature value computation unit; and a tile comparison unit, connected to the tile engine and the signature value repository for comparing signature values of a tile of the current frame and the same tile of a previous frame, and for accessing signature values of tiles stored in the signature value repository; the tile comparison unit also responsible for determining whether to eliminate the rendering of the tile in the current frame; the tile comparison unit being connected to the back portion pipeline and responsible for determining whether to proceed to render the tile or to copy the tile in the previous frame the back portion pipeline and eliminate the rendering of the tile.