Re: [AD] Primitives (DirectX) legacy check broken

[SiegeLordEx <sl...@ai...>]

On 07/26/2014 11:47 PM, Trent Gamblin wrote:
> The first thing in prim_directx.c is a function, is_legacy_card. The
> comment says that older Intel cards are broken and can't handle 3 things
> so some vertex rearrangement is done. It says they don't support shaders.
> Testing on Intel 945, the card does support shaders (Pixel Shader 2.0),
> but is_legacy_card checks for PS3.0 (even though everywhere else we use
> 2.0) and if 3.0 isn't supported the card is deemed "legacy".
> If I leave this as is, untextured primitives draw pure white, no matter
> what color is used. Textured primitives/everything else draw correctly.
> What's interesting is if I return "false" from is_legacy_card,
> everything works perfectly fine. The comment mentions
> DrawIndexedPrimitiveUP, which I didn't check that it was used but
> textured primitives, untextured primitives both draw correctly
> (al_draw_prim and high level primitives) if I return false.
> Not sure, SiegeLord can you clarify which cards this is supposed to
> detect? Intel 945 is a very old chip.
> Thanks,
> Trent

Did you check ex_prim's indexed primitives?

-SL