From: Erik Faye-Lund <erik.faye-lund@collabora.com>
Date: Mon, 4 Jan 2021 09:35:36 +0000 (+0100)
Subject: gallium/util: do not perform n^2 stencil blits
X-Git-Tag: upstream/21.0.0~591
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96ceca33c1dd69a1feed13b0e19bfc38e6f7d979;p=platform%2Fupstream%2Fmesa.git

gallium/util: do not perform n^2 stencil blits

We already loop n times here, no point in doing n instances as well.

Fixes: e8a40715a8b ("gallium/util: add blitter-support for stencil-fallback")
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8301>
---

diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c
index 77d2e34..eefe69b 100644
--- a/src/gallium/auxiliary/util/u_blitter.c
+++ b/src/gallium/auxiliary/util/u_blitter.c
@@ -2918,7 +2918,7 @@ util_blitter_stencil_fallback(struct blitter_context *blitter,
                               dstbox->x, dstbox->y,
                               dstbox->x + dstbox->width,
                               dstbox->y + dstbox->height,
-                              0, stencil_bits,
+                              0, 1,
                               UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW,
                               &coord);
    }