Re: [PATCH] d3dx9: IsParameterUsed stub should return TRUE.

[Henri Verbeet]

On 7 March 2016 at 22:49, Matteo Bruni  wrote:
> Yes, I guess returning TRUE is usually more likely to work. Of course

Is that necessarily what you want though? It might be harder to debug
something being slow because it's updating unused parameters than to
debug something rendering incorrectly because it's not updating them.
> a proper implementation would be even better (although it may be non
> obvious to find out if a parameter is used, depending on what "used"
> really means - it needs tests)...

You always need tests, but a reasonable guess would be whether the
parameter is referenced by the technique.