公开(公告)号：US08803898B2

公开(公告)日：2014-08-12

申请号：US12654385

申请日：2009-12-17

申请人： David Robert Shreiner ,  Ian Victor Devereux ,  Edvard Sørg{dot over (a)}rd ,  Thomas Jeremy Olson

发明人： David Robert Shreiner ,  Ian Victor Devereux ,  Edvard Sørg{dot over (a)}rd ,  Thomas Jeremy Olson

IPC分类号： G06F13/00 ,  G09G5/36 ,  G06T1/00 ,  G06F3/048

CPC分类号： G06T11/40 ,  G09G5/14 ,  G09G5/393 ,  G09G2360/122

摘要： A windowing display using deferred drawing commands operates by processing the drawing commands that write to a tile 22 of a frame buffer 30 to form one or more new pixel values are stored within a tile memory 40. Dirty pixel data indicative of which pixels within the tile memory are dirty pixels storing new pixel values and which pixels within the tile memory are clean pixels not storing new pixel values is also formed. In dependence upon the dirty pixel data, the new pixel value stored within the tile memory are written to the frame buffer memory. Pixels stored within the frame buffer memory corresponding to clean pixels within the tile memory remain unaltered as they are not written.

摘要翻译： 使用延迟绘制命令的窗口显示器通过处理写入帧缓冲器30的瓦片22的绘图命令来进行操作，以形成一个或多个新的像素值存储在瓦片存储器40中。表示瓦片内的哪些像素的脏像素数据 存储器是存储新像素值的脏像素，并且还形成了瓦片存储器内的哪些像素不存储新像素值的清洁像素。 根据脏像素数据，存储在瓦片存储器中的新像素值被写入帧缓冲存储器。 对应于瓷砖内存中清洁像素的帧缓冲存储器中存储的像素在未写入时保持不变。