diff options
author | Ben Widawsky <[email protected]> | 2015-06-24 20:07:54 -0700 |
---|---|---|
committer | Ben Widawsky <[email protected]> | 2015-06-25 14:17:02 -0700 |
commit | c1151b18f2dce7c6f238f057e9c4fa8d912ce6b5 (patch) | |
tree | 2c317b4e8becc5e5a15c44a49d72ce7ed55512b2 /src/mesa/drivers | |
parent | 101a73846b48ebac8e2386a25b24659f013c66a4 (diff) |
i965/skl: Use more compact hiz dimensions
gen8 had some special restrictions which don't seem to carry over to gen9.
Quoting the spec for SKL:
"The Z_Height and Z_Width values must equal those present in
3DSTATE_DEPTH_BUFFER incremented by one."
This fixes nothing in piglit (and regresses nothing).
Signed-off-by: Ben Widawsky <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r-- | src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index 6aa969a4930..31386b99656 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -1456,21 +1456,23 @@ intel_gen7_hiz_buf_create(struct brw_context *brw, /* Gen7 PRM Volume 2, Part 1, 11.5.3 "Hierarchical Depth Buffer" documents * adjustments required for Z_Height and Z_Width based on multisampling. */ - switch (mt->num_samples) { - case 0: - case 1: - break; - case 2: - case 4: - z_width *= 2; - z_height *= 2; - break; - case 8: - z_width *= 4; - z_height *= 2; - break; - default: - unreachable("unsupported sample count"); + if (brw->gen < 9) { + switch (mt->num_samples) { + case 0: + case 1: + break; + case 2: + case 4: + z_width *= 2; + z_height *= 2; + break; + case 8: + z_width *= 4; + z_height *= 2; + break; + default: + unreachable("unsupported sample count"); + } } const unsigned vertical_align = 8; /* 'j' in the docs */ |