diff options
| author | Yuanhan Liu <[email protected]> | 2012-05-02 17:29:11 +0800 |
|---|---|---|
| committer | Yuanhan Liu <[email protected]> | 2012-05-09 15:13:56 +0800 |
| commit | f939776cb2372a3427784f88d34bf14c18a5a212 (patch) | |
| tree | 8eeab9816251c2e8f4fce8e77e0a8eb5f818aad9 /src/mesa | |
| parent | 5aaaa6a426258dc714c7346bec062795998f9986 (diff) | |
i965: fix wrong cube/3D texture layout
Fix wrong cube/3D texture layout for the tailing levels whose width or
height is smaller than the align unit.
From 965 B-spec http://intellinuxgraphics.org/VOL_1_graphics_core.pdf at
page 135:
All of the LOD=0 q-planes are stacked vertically, then below that,
the LOD=1 qplanes are stacked two-wide, then the LOD=2 qplanes are
stacked four-wide below that, and so on.
Thus we should always inrease pack_x_nr, which results to the pitch of LODn
may greater than the pitch of LOD0. So we should refactor mt->total_width
when needed.
This would fix the following webgl test case on all gen4 platforms:
conformance/textures/texture-size-cube-maps.html
NOTE: This is a candidate for stable release branches.
Signed-off-by: Yuanhan Liu <[email protected]>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_tex_layout.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c index 7a1b91f3721..8bf1d3ddbcd 100644 --- a/src/mesa/drivers/dri/i965/brw_tex_layout.c +++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c @@ -115,6 +115,8 @@ brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt) intel_miptree_set_image_offset(mt, level, q, x, y); x += pack_x_pitch; } + if (x > mt->total_width) + mt->total_width = x; x = 0; y += pack_y_pitch; @@ -135,10 +137,9 @@ brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt) pack_x_nr <<= 1; } } else { + pack_x_nr <<= 1; if (pack_x_pitch > 4) { pack_x_pitch >>= 1; - pack_x_nr <<= 1; - assert(pack_x_pitch * pack_x_nr <= mt->total_width); } if (pack_y_pitch > 2) { |