| Re: [AD] loss of videoBitmap after set_gfx_mode() |
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Yes, I agree. I find it strange his POINTER changed values? That's not
right... Anyways... yeah. An assert or something would be nice?
Gillius
On 19 Nov 2002 at 23:17, Robert Ohannessian wrote:
> Gillius wrote:
>
> > No. That's right. At least for Windows. Video bitmaps are stored in
> > the
> > video card/DirectX. When you switch graphics modes, you are essentially
> > restarting DirectX, so anything that you had going related to DirectX is
> > lost.
>
>
> Yes - I completely agree. However, this does not mean that Allegro
> should *crash* because the surfaces were lost. Allegro already keeps
> track of video bitmaps (at least, it does on DOS and Windows). Couldn't
> it safely destroy them on each call to set_gfx_mode?
>
> Also, I don't beleive this feature is documented anywhere.
>
> I guess right now it's a debate in between making Allegro
> crash-resistent/user-proof (as much as possible), versus leaving it up
> to the coder to RTFM.
>
> Maybe we can somehow signal this in the debug build instead? That way,
> the release build is unaffected, and the debug build gets to warn the
> coder about bad behavior...
>
>
>