Re: d3dx9_36: Align texture dimensions to block size for compressed textures in D3DXCheckTextureRequirements.

[Stefan Dösinger]

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On 03/23/15 15:50, Sebastian Lackner wrote:
> -
>    format = D3DFMT_DXT5;
> -
>    width = 5; height = 5;
>
> ...
> -
>    ok(mipmaps == 1, "Returned mipmaps %d, expected %d\n", mipmaps, 1);

I'm curious, why does it report 1 mipmap level? Maybe because width / 2
is smaller than the block size, even though the block-size aligned width
would allow a second level. What does d3dx9 return when you have width =
height = 10 for example?
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d3dx9_36: Align texture dimensions to block size for compressed textures in D3DXCheckTextureRequirements.

[Matteo Bruni]

2015-03-23 16:54 GMT+01:00 Stefan Dösinger :
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> Hash: SHA1
>
> On 03/23/15 15:50, Sebastian Lackner wrote:
> > -
> >    format = D3DFMT_DXT5;
> > -
> >    width = 5; height = 5;
> >
> > ...
> > -
> >    ok(mipmaps == 1, "Returned mipmaps %d, expected %d\n", mipmaps, 1);
>
> I'm curious, why does it report 1 mipmap level? Maybe because width / 2
> is smaller than the block size, even though the block-size aligned width
> would allow a second level. What does d3dx9 return when you have width =
> height = 10 for example?

It should just be because mipmaps was set to 1 before calling
D3DXCheckTextureRequirements() (it's an input/output parameter). It
would be interesting to check that you get 4 levels if mipmaps is set
to 0 though.