Module: Mesa
Branch: master
Commit: ba9b0b682f51222752ac56e7a0615f9bbb686089
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=ba9b0b682f51222752ac56e7a0615f9bbb686089
Author: Christoph Bumiller <e0425...@student.tuwien.ac.at>
Date: Wed Apr 3 00:18:29 2013 +0200
nv50: account for pesky prefetch in size calculation of linear textures
---
src/gallium/drivers/nv50/nv50_miptree.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/src/gallium/drivers/nv50/nv50_miptree.c
b/src/gallium/drivers/nv50/nv50_miptree.c
index 5c839a8..ed0f8c2 100644
--- a/src/gallium/drivers/nv50/nv50_miptree.c
+++ b/src/gallium/drivers/nv50/nv50_miptree.c
@@ -217,6 +217,7 @@ nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
{
struct pipe_resource *pt = &mt->base.base;
const unsigned blocksize = util_format_get_blocksize(pt->format);
+ unsigned h = pt->height0;
if (util_format_is_depth_or_stencil(pt->format))
return FALSE;
@@ -228,7 +229,11 @@ nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
mt->level[0].pitch = align(pt->width0 * blocksize, 64);
- mt->total_size = mt->level[0].pitch * pt->height0;
+ /* Account for very generous prefetch (allocate size as if tiled). */
+ h = MAX2(h, 8);
+ h = util_next_power_of_two(h);
+
+ mt->total_size = mt->level[0].pitch * h;
return TRUE;
}
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