发明授权
US09460525B2 Tile-based compression and decompression for graphic applications
有权
用于图形应用程序的基于平铺的压缩和解压缩
- 专利标题: Tile-based compression and decompression for graphic applications
- 专利标题(中): 用于图形应用程序的基于平铺的压缩和解压缩
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申请号: US13919691申请日: 2013-06-17
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公开(公告)号: US09460525B2公开(公告)日: 2016-10-04
- 发明人: Lefan Zhong , Halim Theny , Huiming Zhang
- 申请人: Vivante Corporation
- 申请人地址: US CA San Jose
- 专利权人: Vivante Corporation
- 当前专利权人: Vivante Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Stevens Law Group
- 代理商 David R. Stevens
- 主分类号: G06T9/00
- IPC分类号: G06T9/00 ; G06K9/36 ; G06F3/14 ; G09G5/393 ; H03M7/30 ; H03M7/40 ; H04N19/91 ; H04N19/88 ; H04N19/593 ; G09G5/14
摘要:
Systems and method for tile-based compression are disclosed. Image data, such as a frame, may be divided into tiles. The tiles may be sized based on a size of a line buffer. Tiles are compressed and decompressed individually. As portions of the image frame are updated, corresponding updated tiles may be compressed and stored. Likewise, as tiles are accessed they may be de-compressed and streamed to a requesting device. In some embodiments, a decoder operable to decompress tiles may be interposed between a memory device and a requesting device. Data encoding one or more compressed tiles may be grouped to enable decompression at a rate of four pixels per clock cycle. Methods for compressing image data including both RGB and RGBα components are disclosed.
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