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aco: Implement load_tess_coord.

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Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3964>
This commit is contained in:
Timur Kristóf 2020-02-17 16:56:39 +01:00 • committed by Marge Bot
parent 9ca2b254ca
commit 754837f3b5
2 changed files with 25 additions and 0 deletions
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24
src/amd/compiler/aco_instruction_selection.cpp
View file

@ -3527,6 +3527,27 @@ void visit_load_per_vertex_input(isel_context *ctx, nir_intrinsic_instr *instr)
}
}
void visit_load_tess_coord(isel_context *ctx, nir_intrinsic_instr *instr)
{
assert(ctx->shader->info.stage == MESA_SHADER_TESS_EVAL);
Builder bld(ctx->program, ctx->block);
Temp dst = get_ssa_temp(ctx, &instr->dest.ssa);
Operand tes_u(get_arg(ctx, ctx->args->tes_u));
Operand tes_v(get_arg(ctx, ctx->args->tes_v));
Operand tes_w(0u);
if (ctx->shader->info.tess.primitive_mode == GL_TRIANGLES) {
Temp tmp = bld.vop2(aco_opcode::v_add_f32, bld.def(v1), tes_u, tes_v);
tmp = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), Operand(0x3f800000u /* 1.0f */), tmp);
tes_w = Operand(tmp);
}
Temp tess_coord = bld.pseudo(aco_opcode::p_create_vector, Definition(dst), tes_u, tes_v, tes_w);
emit_split_vector(ctx, tess_coord, 3);
}
Temp load_desc_ptr(isel_context *ctx, unsigned desc_set)
{
if (ctx->program->info->need_indirect_descriptor_sets) {
@ -6175,6 +6196,9 @@ void visit_intrinsic(isel_context *ctx, nir_intrinsic_instr *instr)
posy.id() ? bld.vop1(aco_opcode::v_fract_f32, bld.def(v1), posy) : Operand(0u));
break;
}
case nir_intrinsic_load_tess_coord:
visit_load_tess_coord(ctx, instr);
break;
case nir_intrinsic_load_interpolated_input:
visit_load_interpolated_input(ctx, instr);
break;

1
src/amd/compiler/aco_instruction_selection_setup.cpp
View file

@ -328,6 +328,7 @@ void init_context(isel_context *ctx, nir_shader *shader)
case nir_intrinsic_load_local_invocation_id:
case nir_intrinsic_load_local_invocation_index:
case nir_intrinsic_load_subgroup_invocation:
case nir_intrinsic_load_tess_coord:
case nir_intrinsic_write_invocation_amd:
case nir_intrinsic_mbcnt_amd:
case nir_intrinsic_load_instance_id: