Re: Pb WineD3D: power of 2 surface and non power of 2 DIB section

[Christian Costa]

> Message du 11/07/06 09:08
> De : "H. Verbeet" 
> A : "Christian Costa" 
> Copie à : wine-devel(a)winehq.org, stefandoesinger(a)gmx.at
> Objet : Re: Pb WineD3D: power of 2 surface and non power of 2 DIB section
>
> On 10/07/06, Christian Costa wrote:
> > Hi,
> >
> > When calling CreateSurface, a power of 2 surface is created and then the
> > necessary memory is allocated.
> > If we try to get the DC with GetDC, a DIB section is created with the
> > original size of the surface and data from the surface
> > is copied to the DIB section The power of 2 surface being greater than
> > the DIB section, this makes Wine crashes.
> >
> > I haven't followed power of 2 texture/surface development. Is there
> > someone having a idea on this.
> > You probably want to ask Stefan. I assume you're talking about the
> > case where the card doesn't support NPOT textures and we fixup the
> > texture size?

yeah, right.

Looking at the code, it's seems the fixup is done in all cases. But maybe
I have missed something...

Pb WineD3D: power of 2 surface and non power of 2 DIB section

[H. Verbeet]

On 11/07/06, Christian Costa <titan.costa(a)wanadoo.fr> wrote:
> Looking at the code, it's seems the fixup is done in all cases. But maybe
> I have missed something...
> Hmm, maybe that's not actually in the tree yet :-)

GL_ARB_texture_non_power_of_two adds NPOT texture support to OpenGL.
Fortunately for us it's quite a simple extension as well. :-)