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draw: don't set the clipped window coordinate to NaN in debug

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Setting the old window coordinate to NaN is more likely to hide the
problem in debug builds because the NaN vertices are dropped later in
the pipeline, either through explicit NaN checks or implicit line
length checks.

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Roland Scheidegger <roland.scheidegger@broadcom.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36653>
This commit is contained in:
Aleksi Sapon 2025-08-26 10:38:25 -04:00 • committed by Marge Bot
parent 1eef08771f
commit 5d06b2ac64
1 changed files with 0 additions and 11 deletions
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11
src/gallium/auxiliary/draw/draw_cliptest_tmp.h
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@ -181,17 +181,6 @@ TAG(do_cliptest)(struct pt_post_vs *pvs,
position[2] = position[2] * w * scale[2] + trans[2];
position[3] = w;
}
#if MESA_DEBUG
/* For debug builds, set the clipped vertex's window coordinate
* to NaN to help catch potential errors later.
*/
else {
position[0] =
position[1] =
position[2] =
position[3] = NAN;
}
#endif
if ((flags & DO_EDGEFLAG) && ef) {
const float *edgeflag = out->data[ef];