[Mesa-dev] [PATCH v7 34/35] nvir/nir: implement load_per_vertex_output
Karol Herbst
kherbst at redhat.com
Mon Apr 16 13:26:14 UTC 2018
v4: use smarter getIndirect helper
use new getSlotAddress helper
v5: use loadFrom helper
Signed-off-by: Karol Herbst <kherbst at redhat.com>
---
.../drivers/nouveau/codegen/nv50_ir_from_nir.cpp | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
index e5d85940ca7..dd73acb2366 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
@@ -2069,6 +2069,29 @@ Converter::visit(nir_intrinsic_instr *insn)
}
break;
}
+ case nir_intrinsic_load_per_vertex_output: {
+ const DataType dType = getDType(insn);
+ LValues &newDefs = convert(&insn->dest);
+ Value *indirectVertex;
+ Value *indirectOffset;
+ auto baseVertex = getIndirect(&insn->src[0], 0, indirectVertex);
+ auto idx = getIndirect(insn, 1, 0, indirectOffset);
+ Value *vtxBase = nullptr;
+
+ if (indirectVertex)
+ vtxBase = indirectVertex;
+ else
+ vtxBase = loadImm(nullptr, baseVertex);
+
+ vtxBase = mkOp2v(OP_ADD, TYPE_U32, getSSA(4, FILE_ADDRESS), outBase, vtxBase);
+
+ for (auto i = 0u; i < insn->num_components; ++i) {
+ uint32_t address = getSlotAddress(insn, idx, i);
+ loadFrom(FILE_SHADER_OUTPUT, 0, dType, newDefs[i], address, 0,
+ indirectOffset, vtxBase, info->in[idx].patch);
+ }
+ break;
+ }
case nir_intrinsic_emit_vertex:
case nir_intrinsic_end_primitive: {
auto idx = nir_intrinsic_stream_id(insn);
--
2.14.3
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