Re: [PATCH] d3dx9_36: Implement D3DXCheckTextureRequirements + tests

[Henri Verbeet]

On 19 April 2010 09:43, Christian Costa  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.