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-rw-r--r--radeon/radeon_surface.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/radeon/radeon_surface.c b/radeon/radeon_surface.c
index 98faa0b9..80b15056 100644
--- a/radeon/radeon_surface.c
+++ b/radeon/radeon_surface.c
@@ -974,10 +974,15 @@ static void si_surf_minify_linear_aligned(struct radeon_surface *surf,
surf->level[level].nblk_z = (surf->level[level].npix_z + surf->blk_d - 1) / surf->blk_d;
}
- /* XXX: Second smallest level uses larger pitch, not sure of the real reason,
- * my best guess so far: rows evenly distributed across slice
+ /* XXX: Texture sampling uses unexpectedly large pitches in some cases,
+ * these are just guesses for the rules behind those
*/
- xalign = MAX2(xalign, slice_align / surf->bpe / surf->level[level].npix_y);
+ if (level == 0 && surf->last_level == 0)
+ /* Non-mipmap pitch padded to slice alignment */
+ xalign = MAX2(xalign, slice_align / surf->bpe);
+ else
+ /* Small rows evenly distributed across slice */
+ xalign = MAX2(xalign, slice_align / surf->bpe / surf->level[level].npix_y);
surf->level[level].nblk_x = ALIGN(surf->level[level].nblk_x, xalign);
surf->level[level].nblk_y = ALIGN(surf->level[level].nblk_y, yalign);