Mail Archives: djgpp/1997/06/03/03:00:22
At 07:56 PM 02/06/1997 +0100, you wrote:
>>It's pretty simple, when I run the demo in 640x480 page flipping, the
>>lower half of the screen appears twice . So you never see the upper half
>>of the screen.
>
>What graphics driver is this using? (run the test.exe program in 640x480
>autodetect mode, it will display the driver name and description in the
>middle of the screen). Also, could you check the scrolling function in
>test.exe, and see if you can figure out exactly how it is going wrong?
>At a guess, you'll find that it is out by a power of two (either
>scrolling right and left by two pixels every time you press an arrow
>key, or only scrolling on every other keypress). If you could let me
>know which way the error is, and which driver it is using, that would
>help a lot...
>
Hello, I am not Fernando Salas, I am Ivan Baldo. I have talked with
Fernando and Fernando and I we have the same video cards (Trident Agi9440).
When I run your demo with de Trident driver and use Page Fliping the error
that describes Fernando ocurs. But when I use Vesa 2.0 or Vesa 1.x the
error disapears. When I use test.exe with de Trident driver and test the
scroll, the screen gets noised (i dont know how to speak english very
whell, sorry) only when I move, when stop moving the screen looks good.
Sorry but I am not a good programmer and I can not help changing the
source code, but if you want, I can test the library for you.
I want to help, hope this already helped. If there something that can I do
for you, please tell me!!!
Congratulations for the library!!! Bye!
Ivan Baldo: baldo AT chasque DOT apc DOT org
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