summaryrefslogtreecommitdiffstats
path: root/src/gallium/state_trackers/nine/volumetexture9.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/state_trackers/nine/volumetexture9.c')
-rw-r--r--src/gallium/state_trackers/nine/volumetexture9.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/gallium/state_trackers/nine/volumetexture9.c b/src/gallium/state_trackers/nine/volumetexture9.c
index 5c83fdb60ce..c836dd21023 100644
--- a/src/gallium/state_trackers/nine/volumetexture9.c
+++ b/src/gallium/state_trackers/nine/volumetexture9.c
@@ -222,9 +222,13 @@ NineVolumeTexture9_AddDirtyBox( struct NineVolumeTexture9 *This,
This->dirty_box.height = This->base.base.info.height0;
This->dirty_box.depth = This->base.base.info.depth0;
} else {
- struct pipe_box box;
- d3dbox_to_pipe_box(&box, pDirtyBox);
- u_box_union_3d(&This->dirty_box, &This->dirty_box, &box);
+ if (This->dirty_box.width == 0) {
+ d3dbox_to_pipe_box(&This->dirty_box, pDirtyBox);
+ } else {
+ struct pipe_box box;
+ d3dbox_to_pipe_box(&box, pDirtyBox);
+ u_box_union_3d(&This->dirty_box, &This->dirty_box, &box);
+ }
This->dirty_box.x = MAX2(This->dirty_box.x, 0);
This->dirty_box.y = MAX2(This->dirty_box.y, 0);
This->dirty_box.z = MAX2(This->dirty_box.z, 0);