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blorp/clear: Simplify rbg-as-red channel packing

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Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11564>
This commit is contained in:
Jordan Justen 2021-08-31 17:45:06 -07:00 • committed by Marge Bot
parent 44ba094b1d
commit 00ea664cb6
1 changed files with 1 additions and 9 deletions
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10
src/intel/blorp/blorp_clear.c
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@ -75,15 +75,7 @@ blorp_params_get_clear_kernel(struct blorp_batch *batch,
nir_ssa_def *pos = nir_f2i32(&b, nir_load_frag_coord(&b));
nir_ssa_def *comp = nir_umod(&b, nir_channel(&b, pos, 0),
nir_imm_int(&b, 3));
nir_ssa_def *color_component =
nir_bcsel(&b, nir_ieq_imm(&b, comp, 0),
nir_channel(&b, color, 0),
nir_bcsel(&b, nir_ieq_imm(&b, comp, 1),
nir_channel(&b, color, 1),
nir_channel(&b, color, 2)));
nir_ssa_def *u = nir_ssa_undef(&b, 1, 32);
color = nir_vec4(&b, color_component, u, u, u);
color = nir_pad_vec4(&b, nir_vector_extract(&b, color, comp));
}
nir_variable *frag_color = nir_variable_create(b.shader, nir_var_shader_out,