Window Blending - Samsung S5PC110 Manual

S5PC110_UM

1.3.6 WINDOW BLENDING

1.3.6.1 Overview of Window Blending
The main function of the VPRCS module is window blending. Display controller comprises five window layers
(win0 ~ win4).
Example of Application:
The system uses
win0 as OS window, full TV screen window, and so on.
win1 as small (next channel ) TV screen with win2 as menu.
win3 as caption.
win 4 as channel information.
win3 and win4 have color limitation while using color index with Color LUT. This feature enhances the
system performance by reducing the data rate of total system.
Example of Total Five Windows:
win 0 (base): Local/ (YCbCr, RGB without palette)
win 1 (Overlay1): RGB with palette
win 2 (Overlay2): RGB with palette
win 3 (Caption): RGB (1/2/4) with 16-level Color LUT
win 4 (Cursor): RGB (1/2) with 4-level Color LUT
Overlay Priority
Win 4 > Win 3 > Win 2 > Win 1 > Win 0
Color Key
The register value to ColorKey register must be set by 24-bit RGB format.
1 0BDISPLAY CONTROLLER
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