Ichthyostega
1aae4fdcdd
* this changeset builds a complex processing network for the first time * furthermore, some ideas towards verification are spelled out ''verification not implemented''
219 lines
8.1 KiB
C++
219 lines
8.1 KiB
C++
/*
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NodeLink(Test) - render node connectivity and collaboration
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Copyright (C)
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2024, Hermann Vosseler <Ichthyostega@web.de>
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**Lumiera** is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version. See the file COPYING for further details.
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* *****************************************************************/
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/** @file node-link-test.cpp
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** The \ref NodeLink_test covers the essence of connected render nodes.
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*/
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#include "lib/test/run.hpp"
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#include "steam/engine/proc-node.hpp"
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#include "steam/engine/node-builder.hpp"
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#include "steam/engine/test-rand-ontology.hpp" ///////////TODO
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#include "lib/test/diagnostic-output.hpp"/////////////////TODO
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#include "lib/util.hpp"
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#include <array>
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using std::array;
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using util::isnil;
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//using std::string;
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using util::isSameObject;
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namespace steam {
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namespace engine{
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namespace test {
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/***************************************************************//**
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* @test demonstrate and document how [render nodes](\ref proc-node.hpp)
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* are connected into a processing network, allowing to _invoke_
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* a \ref Port on a node to pull-generate a render result.
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* - the foundation layer is formed by the nodes as linked into a network
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* - starting from any Port, a TurnoutSystem can be established
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* - which in turn allows _turn out_ a render result from this port.
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*/
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class NodeLink_test : public Test
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{
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virtual void
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run (Arg)
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{
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seedRand();
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build_simple_node();
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build_connected_nodes();
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trigger_node_port_invocation();
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}
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/** @test Build Node Port for simple function
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* and verify observable properties of a Render Node
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* @todo 7/24 ✔ define ⟶ ✔ implement
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*/
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void
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build_simple_node()
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{
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// use some dummy specs and a dummy operation....
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StrView nodeID{ont::DUMMY_NODE_ID};
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StrView procID{ont::DUMMY_PROC_ID};
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CHECK (nodeID == "Test:dummy"_expect);
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CHECK (procID == "op(int)"_expect);
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// use the NodeBuilder to construct a simple source-node connectivity
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auto con = prepareNode(nodeID)
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.preparePort()
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.invoke(procID, ont::dummyOp)
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.completePort()
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.build();
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CHECK (isnil (con.leads));
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CHECK (1 == con.ports.size());
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// can build a ProcNode with this connectivity
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ProcNode n1{move(con)};
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CHECK (watch(n1).isValid());
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CHECK (watch(n1).leads().empty());
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CHECK (watch(n1).ports().size() == 1);
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// can generate a symbolic spec to describe the Port's processing functionality...
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CHECK (watch(n1).getPortSpec(0) == "Test:dummy.op(int)"_expect);
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CHECK (watch(n1).getPortSpec(1) == "↯"_expect);
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// such a symbolic spec is actually generated by a deduplicated metadata descriptor
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auto& meta1 = ProcID::describe("N1","(arg)");
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auto& meta1b = ProcID::describe("N1","(arg)");
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auto& meta2 = ProcID::describe("N2","(arg)");
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auto& meta3 = ProcID::describe("N1","uga()");
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CHECK ( isSameObject (meta1,meta1b));
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CHECK (not isSameObject (meta1,meta2));
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CHECK (not isSameObject (meta1,meta3));
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CHECK (hash_value(meta1) == hash_value(meta1b));
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CHECK (hash_value(meta1) != hash_value(meta2));
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CHECK (hash_value(meta1) != hash_value(meta3));
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CHECK (meta1.genProcSpec() == "N1(arg)"_expect);
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CHECK (meta2.genProcSpec() == "N2(arg)"_expect);
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CHECK (meta3.genProcSpec() == "N1.uga()"_expect);
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// re-generate the descriptor for the source node (n1)
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auto& metaN1 = ProcID::describe("Test:dummy","op(int)");
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CHECK (metaN1.genProcSpec() == "Test:dummy.op(int)"_expect);
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CHECK (metaN1.genProcName() == "Test:dummy.op"_expect);
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CHECK (metaN1.genNodeName() == "Test:dummy"_expect);
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CHECK (metaN1.genNodeSpec(con.leads) == "Test:dummy-◎"_expect);
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}
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/** @test TODO Build more elaborate Render Nodes linked into a connectivity network
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* @todo WIP 1/25 🔁 define ⟶ implement
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*/
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void
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build_connected_nodes()
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{
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// This operation emulates a data source
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auto src_op = [](int param, int* res){ *res = param; };
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// A Node with two (source) ports
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ProcNode n1{prepareNode("n1")
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.preparePort()
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.invoke("a(int)", src_op)
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.setParam(5)
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.completePort()
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.preparePort()
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.invoke("b(int)", src_op)
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.setParam(23)
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.completePort()
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.build()};
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// A node to add some "processing" to each data chain
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auto add1_op = [](int* src, int* res){ *res = 1 + *src; };
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ProcNode n2{prepareNode("n2")
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.preparePort()
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.invoke("+1(int)(int)", add1_op)
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.connectLead(n1)
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.completePort()
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.preparePort()
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.invoke("+1(int)(int)", add1_op)
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.connectLead(n1)
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.completePort()
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.build()};
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// Need a secondary source, this time with three ports
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ProcNode n1b{prepareNode("n1b")
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.preparePort()
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.invoke("a(int)", src_op)
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.setParam(7)
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.completePort()
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.preparePort()
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.invoke("b(int)", src_op)
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.setParam(13)
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.completePort()
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.preparePort()
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.invoke("c(int)", src_op)
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.setParam(17)
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.completePort()
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.build()};
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// This operation emulates mixing of two source chains
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auto mix_op = [](array<int*,2> src, int* res){ *res = (*src[0] + *src[1]) / 2; };
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// Wiring for the Mix, building up three ports
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// Since the first source-chain has only two ports,
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// for the third result port we'll re-use the second source
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ProcNode n3{prepareNode("n2")
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.preparePort()
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.invoke("A.mix(int/2)(int)", mix_op)
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.connectLead(n2)
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.connectLead(n1b)
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.completePort()
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.preparePort()
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.invoke("B.mix(int/2)(int)", mix_op)
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.connectLead(n2)
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.connectLead(n1b)
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.completePort()
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.preparePort()
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.invoke("C.mix(int/2)(int)", mix_op)
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.connectLeadPort(n2,1)
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.connectLead(n1b)
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.completePort()
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.build()};
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SHOW_EXPR(watch(n1).getNodeSpec())
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SHOW_EXPR(watch(n1).getPortSpec(0))
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SHOW_EXPR(watch(n1).getPortSpec(1))
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SHOW_EXPR(watch(n1.getPort(0)).getProcSpec())
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SHOW_EXPR(watch(n1.getPort(0)).isSrc())
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}
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/** @test TODO Invoke some render nodes as linked together
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* @todo WIP 12/24 🔁 define ⟶ implement
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*/
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void
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trigger_node_port_invocation()
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{
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UNIMPLEMENTED ("operate some render nodes as linked together");
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}
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};
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/** Register this test class... */
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LAUNCHER (NodeLink_test, "unit node");
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}}} // namespace steam::engine::test
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