[PATCH] d3dx9_36: Implement D3DXCheckTextureRequirements + tests

[paulo lesgaz]

Maybe this function should be in util.c.

A+

David


--- En date de : Lun 19.4.10, Henri Verbeet <hverbeet at gmail.com> a écrit :

De: Henri Verbeet <hverbeet at gmail.com>
Objet: Re: [PATCH] d3dx9_36: Implement D3DXCheckTextureRequirements + tests
À: wine-devel at winehq.org
Date: Lundi 19 avril 2010, 11h43

On 19 April 2010 09:43, Christian Costa <titan.costa at wanadoo.fr> wrote:
> +BOOL is_pow2(UINT num)
> +{
> +    UINT i;
> +
> +    if (!num) return FALSE;
> +    for (i = 0; num >> 1; i++) num >>= 1;
> +
> +    return (num << i) == num;
> +}
This should at least be static. You can also just replace it with
"return !(num & (num - 1));". You don't care about 0, since you
already check that earlier in D3DXCheckTextureRequirements().
make_pow2() can probably be simplified as well.





      
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