Video processing device

TLDR: In this paper, a video processing device includes a sprite rendering processor that performs: first rendering of allowing designated sprite image data to be reflected in the stored contents of a rendering line buffer; and second rendering of allowed a designated alpha table to be reflecting in the storage contents of an alpha buffer 106.

Abstract: PROBLEM TO BE SOLVED: To provide a video processing device capable of appropriately executing a wide variety of rendering using alpha blending. SOLUTION: The video processing device includes a sprite rendering processor 110 that performs: first rendering of allowing designated sprite image data to be reflected in the stored contents of a rendering line buffer; and a second rendering of allowing a designated alpha table to be reflected in the stored contents of an alpha buffer 106. The first rendering is performed via alpha blending on: image data of sprites as an object to be rendered; rendering-destination image data of the rendering line buffer; and alpha data corresponding to the rendering-destination image data of the alpha data in the alpha buffer 106, thus producing resultant image data of alpha blending, which is written over the rendering-destination image data. COPYRIGHT: (C)2011,JPO&INPIT