Re: Wince 50 Portrait display on Landscape LCD.

For this you can have many solutions

- Hardware support : some display controllers support hardware rotation of
the screen, but I don't think it is possible with PXA LCD controller

- Rotation support of CE : look at RFLAT sample driver. Basically, the idea
is to use GPERFlat lib instead of GPEFlat and to add a couple of lines of
code in the driver to handle rotation, and you're done. This solution is
definitely much more efficient than trying to rotate the frame buffer by
yourself in the driver

--
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Yannick Chamming's (eMVP)
ADENEO (ADESET)
Windows Embedded Manager
ychammings AT adeneo DOT adetelgroup DOT com>
http://www.adeset.com
Tél : +33 (0)4.72.18.57.77
Fax : +33 (0)4.72.18.57.78
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"newcomer" <yuanfei05@xxxxxxxxx> a écrit dans le message de news:
1152241943.583922.221650@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello, I am using Intel Xscale 270, runing wince 50. our LCD is
natively Landscape, it means 320 pixel a line, 240 line a page. We now
want the system looks portait, it means 240 a line, 320 lines a page.
My problem now is, when I compile a portrait display, the system will
format the dispaly buffer in portrait format as following
|-----240 Pixel------||------240 Pixel------| ..........|----240
Pixel------|
0 1
319
But the LCD is expecting a format like following:
|-----320 Pixel------||------320 Pixel------| ..........|----320
Pixel------|
0 1
239
I need to convert the buffer format, before send it to LCD. I would
like to know:

1. where should I do this? Can I do this in between each frame?
2. What will be the visual effect to the user? Will this part of
processing cause any un desirable display effect?


Thanks



.

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