From c1151b18f2dce7c6f238f057e9c4fa8d912ce6b5 Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Wed, 24 Jun 2015 20:07:54 -0700 Subject: [PATCH] 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 Reviewed-by: Anuj Phogat Reviewed-by: Jordan Justen --- src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 32 ++++++++++--------- 1 file 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 */ -- 2.30.2