公开(公告)号：US09472008B2

公开(公告)日：2016-10-18

申请号：US14309487

申请日：2014-06-19

Applicant: ARM Limited

Inventor： Daren Croxford ,  Thomas James Cooksey ,  Sean Tristram Ellis

IPC: G06T11/60 ,  G06T11/40 ,  G06T15/00

CPC classification number: G06T11/60 ,  G06T11/40 ,  G06T15/005

Abstract: A graphics processing apparatus performs tile based compositing operations. Tile metadata includes flag data, such as transparency and/or intensity flag data, indicating whether a given input graphics tile makes less than a predetermined first threshold level of contribution or more than a second predetermined threshold level of contribution to a corresponding output graphics tile. For example, if an input graphics tile is transparent, then its reading from a memory and/or subsequent processing may be suppressed. If a given input graphics tile is opaque, then underlying input graphics tiles that are obscured may have their reading and/or further processing suppressed.

Abstract translation: 图形处理装置执行基于瓦片的合成操作。 平铺元数据包括诸如透明度和/或强度标志数据的标志数据，其指示给定的输入图形图块是否小于预定的第一阈值贡献水平，或者大于对相应输出图形图块的第二预定阈值水平。 例如，如果输入图形瓦片是透明的，则可以抑制其从存储器读取和/或后续处理。 如果给定的输入图形瓦片是不透明的，则隐藏的底层输入图形瓦片可以抑制其读取和/或进一步的处理。