winedos/int10 clearscreen fix

[Tony Lambregts]

Ulrik Mikaelsson wrote:

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>>Are you sure you found the right place to fix? According to
>>interrupt documentation, 0x0b subfunction 0x00 is supposed to only
>>set background color. It is possible that the subfunction also clears
>>screen but I would like you to make sure that this is the real place
>>missing clear screen.
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>No, I am not sure at all. But it seems like whenever the application want a 
>clearscreen this function is called.
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>>One place that is certain to have missing clear screen is entering
>>text mode. Right now VGA emulation does not do this; VGA_SetAlphaMode
>>should have a boolean flag that tells whether clear screen is desired or
>>not and this flag should be set according to VGA mode bit 7 (or some
>>VESA mode flag). I suspect that this is what is really causing the bug
>>you have observed. Perhaps you should check whether this is the case?
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>I've tried adding the clear-code here, and the program didn't even start. I've 
>tried removing the code and the program didn't start. I've tried to remove 
>the winedos directory and the program still didn't start. 
>I've also tried with another machince which had the program and wine installed 
>and the program don't start there either (did yesterday and I haven't touched 
>it since)
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>I'm afraid I can't test this for now. I guess it'll have to be postponed.
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Since you are on CVS I assume that this is a regression. could you 
please find the patch that broke it.

http://www.winehq.org/docs/wine-devel/cvs-regression.shtml

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Tony Lambregts