fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 16:08:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

pan/bi: Implement coverage mask updates

Browse source 
Impressive how simple this looks after dozens of patches of
sysval-related prepwork :)

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8774>
This commit is contained in:
Alyssa Rosenzweig 2021-01-29 16:59:12 -05:00
parent ae8b1fa7db
commit 00df274586
1 changed files with 15 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
src/panfrost/bifrost/bifrost_compile.c
View file

@ -397,15 +397,28 @@ bi_emit_fragment_out(bi_builder *b, nir_intrinsic_instr *instr)
nir_var_shader_out, nir_intrinsic_base(instr));
assert(var);
unsigned loc = var->data.location;
bi_index src0 = bi_src_index(&instr->src[0]);
/* By ISA convention, the coverage mask is stored in R60. The store
* itself will be handled by a subsequent ATEST instruction */
if (loc == FRAG_RESULT_SAMPLE_MASK) {
bi_index orig = bi_register(60);
bi_index msaa = bi_load_sysval(b, PAN_SYSVAL_MULTISAMPLED, 1, 0);
bi_index new = bi_lshift_and_i32(b, orig, src0, bi_imm_u8(0));
bi_mux_i32_to(b, orig, orig, new, msaa, BI_MUX_INT_ZERO);
return;
}
/* Dual-source blending is implemented by putting the color in
* registers r4-r7. */
if (var->data.index) {
bi_index color = bi_src_index(&instr->src[0]);
unsigned count = nir_src_num_components(instr->src[0]);
for (unsigned i = 0; i < count; ++i)
bi_mov_i32_to(b, bi_register(4 + i),
bi_word(color, i));
bi_word(src0, i));
return;
}
@ -447,7 +460,6 @@ bi_emit_fragment_out(bi_builder *b, nir_intrinsic_instr *instr)
}
if (emit_blend) {
unsigned loc = var->data.location;
assert(loc == FRAG_RESULT_COLOR || loc >= FRAG_RESULT_DATA0);
unsigned rt = loc == FRAG_RESULT_COLOR ? 0 :