| 摘要 |
In an image generation device that includes a memory in which a burst length, which is the smallest unit of read/write processing, is large, an image generation device in which processing efficiency at the time of a memory access does not decrease, even in the case of accessing a rendering buffer for rendering a polygon. Image data is stored in the rendering buffer in block units made up of plural pixels. At this time, image data of pixels corresponding to the polygon is stored in a serial region of the rendering buffer. A valid pixel flag indicating that a valid pixel is present within the block is stored in a rendering information buffer. The rendering buffer is accessed as little as possible based on placement of the valid pixel flags within the block.
|
