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74f1d4f47b
Minor adjustments to formatting of the copyright line, but keep dates and holders. "Authors" entries that could be obtained via Git logs were also removed. The license in brw_disasm.c and elk_disasm.c don't match directly any SPDX pattern I could find, so kept as is. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39503>
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* Copyright © 2015 Intel Corporation
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* SPDX-License-Identifier: MIT
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*/
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#include "elk_vec4_gs_visitor.h"
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namespace elk {
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void
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vec4_gs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
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{
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dst_reg dest;
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src_reg src;
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switch (instr->intrinsic) {
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case nir_intrinsic_load_per_vertex_input: {
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assert(instr->def.bit_size == 32);
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/* The EmitNoIndirectInput flag guarantees our vertex index will
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* be constant. We should handle indirects someday.
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*/
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const unsigned vertex = nir_src_as_uint(instr->src[0]);
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const unsigned offset_reg = nir_src_as_uint(instr->src[1]);
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const unsigned input_array_stride = prog_data->urb_read_length * 2;
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/* Make up a type...we have no way of knowing... */
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const glsl_type *const type = glsl_ivec_type(instr->num_components);
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src = src_reg(ATTR, input_array_stride * vertex +
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nir_intrinsic_base(instr) + offset_reg,
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type);
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src.swizzle = ELK_SWZ_COMP_INPUT(nir_intrinsic_component(instr));
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dest = get_nir_def(instr->def, src.type);
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dest.writemask = elk_writemask_for_size(instr->num_components);
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emit(MOV(dest, src));
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break;
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}
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case nir_intrinsic_load_input:
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UNREACHABLE("nir_lower_io should have produced per_vertex intrinsics");
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case nir_intrinsic_emit_vertex_with_counter:
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this->vertex_count =
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retype(get_nir_src(instr->src[0], 1), ELK_REGISTER_TYPE_UD);
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gs_emit_vertex(nir_intrinsic_stream_id(instr));
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break;
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case nir_intrinsic_end_primitive_with_counter:
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this->vertex_count =
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retype(get_nir_src(instr->src[0], 1), ELK_REGISTER_TYPE_UD);
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gs_end_primitive();
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break;
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case nir_intrinsic_set_vertex_and_primitive_count:
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this->vertex_count =
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retype(get_nir_src(instr->src[0], 1), ELK_REGISTER_TYPE_UD);
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break;
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case nir_intrinsic_load_primitive_id:
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assert(gs_prog_data->include_primitive_id);
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dest = get_nir_def(instr->def, ELK_REGISTER_TYPE_D);
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emit(MOV(dest, retype(elk_vec4_grf(1, 0), ELK_REGISTER_TYPE_D)));
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break;
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case nir_intrinsic_load_invocation_id: {
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dest = get_nir_def(instr->def, ELK_REGISTER_TYPE_D);
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if (gs_prog_data->invocations > 1)
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emit(ELK_GS_OPCODE_GET_INSTANCE_ID, dest);
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else
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emit(MOV(dest, elk_imm_ud(0)));
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break;
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}
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default:
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vec4_visitor::nir_emit_intrinsic(instr);
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}
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}
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}
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