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ac/nir/cull: fix culling for lines

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Acked-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19868>
This commit is contained in:
Qiang Yu
2022-11-19 17:48:22 +08:00
committed by Marge Bot
parent d18a28ae87
commit 74ad255c8c
1 changed files with 6 additions and 4 deletions
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src/amd/common/ac_nir_cull.c
+6 -4
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@@ -209,7 +209,7 @@ calc_bbox_line(nir_builder *b, nir_ssa_def *pos[3][4], nir_ssa_def *bbox_min[2],
nir_ssa_def *width = nir_channel(b, clip_half_line_width, chan);
bbox_min[chan] = nir_fsub(b, bbox_min[chan], width);
bbox_max[chan] = nir_fsub(b, bbox_max[chan], width);
bbox_max[chan] = nir_fadd(b, bbox_max[chan], width);
}
}
@@ -268,8 +268,8 @@ cull_small_primitive_line(nir_builder *b, nir_ssa_def *pos[3][4],
rotate_45degrees(b, v1);
nir_ssa_def *small_prim_precision = nir_load_cull_small_prim_precision_amd(b);
prim_is_small = prim_is_small_else;
nir_ssa_def *rounded_to_eq[2];
for (unsigned chan = 0; chan < 2; chan++) {
/* The width of each square is sqrt(0.5), so scale it to 1 because we want
* round() to give us the position of the closest center of a square (diamond).
@@ -293,9 +293,11 @@ cull_small_primitive_line(nir_builder *b, nir_ssa_def *pos[3][4],
min = nir_fround_even(b, min);
max = nir_fround_even(b, max);
nir_ssa_def *rounded_to_eq = nir_feq(b, min, max);
prim_is_small = nir_ior(b, prim_is_small, rounded_to_eq);
rounded_to_eq[chan] = nir_feq(b, min, max);
}
prim_is_small = nir_iand(b, rounded_to_eq[0], rounded_to_eq[1]);
prim_is_small = nir_ior(b, prim_is_small, prim_is_small_else);
}
nir_pop_if(b, if_cull_small_prims);