Invention Grant
US09483443B2 Tiled display list 有权
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Tiled display list
Abstract:
A method for scaling including: obtaining an electronic document (ED) identifying a graphical feature; partitioning the ED into multiple tiles including a first tile and a second tile, where the graphical feature spans the first tile and the second tile; partitioning the graphical feature into a first fragment located solely within the first tile and a second fragment located solely within the second tile; adding the first fragment to a first display sub-list corresponding to the first tile; adding the second fragment to a second display sub-list corresponding to the second tile; receiving a first request to scale the ED specifying a resolution and a first region intersecting a subset of the plurality of tiles including the first tile but excluding the second tile; and generating, in response to the first request, a first scaled ED for the display device by rendering only the first display sub-list the resolution.
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