[PATCH v2 2/2] wined3d: Add quirk for Nvidia viewport subpixel bits bug.

[Józef Kucia]

On Mon, Feb 27, 2017 at 1:49 PM, Sebastian Lackner
<sebastian at fds-team.de> wrote:
> As you might be aware, the problem on Nvidia binary can also be worked
> around by using slightly different offsets (basically reverting
> 1bed10abee7d2439a5c7358596c860c454f06b53). Do you think its better to
> disable it, or should we just use different pixel center offsets?

The offsets used by 1bed10abee7d2439a5c7358596c860c454f06b53 are more
correct, e.g. because of filling conventions. I don't think using
different offsets is a correct thing to do. We also have a code path
which handles the pixel offsets correctly when ARB_clip_control is not
available. On the other hand, we may want to reconsider the
ARB_viewport_array detection logic when we'll add support for multiple
viewports in wined3d.