发明授权
- 专利标题: Efficient scissoring for graphics application
- 专利标题(中): 图形应用程序的高效剪裁
-
申请号: US11562379申请日: 2006-11-21
-
公开(公告)号: US08269792B2公开(公告)日: 2012-09-18
- 发明人: Guofang Jiao , Angus M. Dorbie
- 申请人: Guofang Jiao , Angus M. Dorbie
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 George C. Pappas; James R. Gambale, Jr.
- 主分类号: G06T11/00
- IPC分类号: G06T11/00
摘要:
Scissoring for any number of scissoring regions is performed in a sequential order by drawing one scissoring region at a time on a drawing surface and updating scissor values for pixels within each scissoring region. A scissor value for a pixel may indicate the number of scissoring regions covering the pixel and may be incremented for each scissoring region covering the pixel. A scissor value for a pixel may also be a bitmap, and a bit for a scissoring region may be set to one if the pixel is within the scissoring region. Pixels within a region of interest are passed and rendered, and pixels outside of the region are discarded. This region may be defined by a reference value, which may be set to (a) one for the union of all scissoring regions, for a scissoring UNION operation, or (b) larger than one for the intersection of multiple (e.g., all) scissoring regions, for a scissoring AND operation.
公开/授权文献
- US20080118148A1 EFFICIENT SCISSORING FOR GRAPHICS APPLICATION 公开/授权日:2008-05-22
信息查询
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T11/00 | 2D〔二维〕图像的生成 |