Invention Grant
- Patent Title: Inline image rotation
- Patent Title (中): 内联图像旋转
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Application No.: US13306429Application Date: 2011-11-29
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Publication No.: US08797359B2Publication Date: 2014-08-05
- Inventor: Brijesh Tripathi , Nitin Bhargava , Craig M. Okruhlica
- Applicant: Brijesh Tripathi , Nitin Bhargava , Craig M. Okruhlica
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Rory D. Rankin
- Main IPC: G09G5/00
- IPC: G09G5/00

Abstract:
Methods and apparatus for performing an inline rotation of an image. The apparatus includes a rotation unit for reading pixels from a source image in an order based on a specified rotation to be performed. The source image is partitioned into multiple tiles, the tiles are processed based on where they will be located within the rotated image, and each tile is stored in a tile buffer. The target pixel addresses within a tile buffer are calculated and stored in a lookup table, and when the pixels are retrieved from the source image by the rotation unit, the lookup table is read to determine where to write the pixels within a corresponding tile buffer.
Public/Granted literature
- US20130135351A1 INLINE IMAGE ROTATION Public/Granted day:2013-05-30
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