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radeonsi: Always leave poly_offset in a valid state

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This commit makes si_update_poly_offset set poly_offset to NULL if
uses_poly_offset is false. This way poly_offset either points into the
currently queued rasterizer, or it is NULL.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99451
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
(cherry picked from commit d7d32b3bfe)
This commit is contained in:
Zachary Michaels 2017-01-19 10:50:16 +01:00 • committed by Emil Velikov
parent ced6fd3508
commit d446f45567
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/radeonsi/si_state.c
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@ -698,8 +698,10 @@ static void si_update_poly_offset_state(struct si_context *sctx)
{
struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
if (!rs || !rs->uses_poly_offset || !sctx->framebuffer.state.zsbuf)
if (!rs || !rs->uses_poly_offset || !sctx->framebuffer.state.zsbuf) {
si_pm4_bind_state(sctx, poly_offset, NULL);
return;
}
/* Use the user format, not db_render_format, so that the polygon
* offset behaves as expected by applications.