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iris: fix mapping compressed textures 

This code was originally made for crocus by Dave Airlie.
Iris is also affected, so this commit ports the fix.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12993>
This commit is contained in:
Filip Gawin 2021-08-18 09:57:09 +02:00 committed by Marge Bot
parent fcc062235c
commit 80c2b27438
1 changed files with 6 additions and 1 deletions
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7
src/gallium/drivers/iris/iris_resource.c
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@ -2153,12 +2153,17 @@ iris_map_direct(struct iris_transfer *map)
const unsigned cpp = fmtl->bpb / 8;
unsigned x0_el, y0_el;
assert(box->x % fmtl->bw == 0);
assert(box->y % fmtl->bh == 0);
get_image_offset_el(surf, xfer->level, box->z, &x0_el, &y0_el);
x0_el += box->x / fmtl->bw;
y0_el += box->y / fmtl->bh;
xfer->stride = isl_surf_get_row_pitch_B(surf);
xfer->layer_stride = isl_surf_get_array_pitch(surf);
map->ptr = ptr + (y0_el + box->y) * xfer->stride + (x0_el + box->x) * cpp;
map->ptr = ptr + y0_el * xfer->stride + x0_el * cpp;
}
}