MB86296 Datasheet, PDF (111/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
10. DRAWING PROCESSING
10.1 Coordinate System
10.1.1 Drawing coordinates
After the calculation of coordinates by the geometry engine, CORAL draws data in the drawing frame
in the graphics memory that finally uses the drawing coordinates (device coordinates).
Drawing frame is treated as 2D coordinates with the origin at the top left as shown in the figure below.
The maximum coordinates is 4096 × 4096. Each drawing frame is located in the Graphics Memory by
setting the address of the origin and resolution of X direction (size). Although the size of Y direction
does not need to be set, Y coordinates which are max. at drawing must not be overlapped with other
area. In addition, at drawing, specifying the clip frame (top left and bottom right coordinates) can
prevent the drawing of images outside the clip frame.
X (max. 4096)
Origin
Drawing frame size X
(Xmin, Ymin)
Clip frame
(Xmax, Ymax)
MB86296S <Coral-PA>
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Specification Manual Rev0.1