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panfrost: Clamp the render area to the damage region

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The render area clamping was lost during the transition to the FB
helpers. Restore the original logic so we can benefit from
EGL_KHR_partial_update on v4, and on v5 when only one damage
rectangle is passed.

Fixes: ff3eada7eb ("panfrost: Use the generic preload and FB helpers in the gallium driver")
Reported-by: Sjoerd Simons <sjoerd.simons@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Sjoerd Simons <sjoerd.simons@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27215>
(cherry picked from commit f6f7715c58)
This commit is contained in:
Boris Brezillon 2024-01-23 16:13:05 +01:00 • committed by Eric Engestrom
parent 73dcdc7a4e
commit d2094c1e1b
2 changed files with 14 additions and 1 deletions
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2
.pick_status.json
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@ -54,7 +54,7 @@
"description": "panfrost: Clamp the render area to the damage region",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "ff3eada7eb4e4df0abe93ee76b77101f9d24e72c",
"notes": null

13
src/gallium/drivers/panfrost/pan_job.c
View file

@ -491,6 +491,19 @@ panfrost_batch_to_fb_info(const struct panfrost_batch *batch,
fb->rts[i].discard = !reserve && !(batch->resolve & mask);
/* Clamp the rendering area to the damage extent. The
* KHR_partial_update spec states that trying to render outside of
* the damage region is "undefined behavior", so we should be safe.
*/
if (!fb->rts[i].discard) {
fb->extent.minx = MAX2(fb->extent.minx, prsrc->damage.extent.minx);
fb->extent.miny = MAX2(fb->extent.miny, prsrc->damage.extent.miny);
fb->extent.maxx = MIN2(fb->extent.maxx, prsrc->damage.extent.maxx - 1);
fb->extent.maxy = MIN2(fb->extent.maxy, prsrc->damage.extent.maxy - 1);
assert(fb->extent.minx <= fb->extent.maxx);
assert(fb->extent.miny <= fb->extent.maxy);
}
rts[i].format = surf->format;
rts[i].dim = MALI_TEXTURE_DIMENSION_2D;
rts[i].last_level = rts[i].first_level = surf->u.tex.level;