Hans Goudey
1e7b2d0bc6
This conversion works the same way as a combination of the existing color to float3 to boolean conversions, so the boolean result will be false if the color is black, otherwise true, and the alpha is ignored.
509 lines
19 KiB
C++
509 lines
19 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "NOD_node_tree_multi_function.hh"
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#include "FN_multi_function_network_evaluation.hh"
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#include "BLI_color.hh"
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#include "BLI_float2.hh"
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#include "BLI_float3.hh"
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namespace blender::nodes {
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const fn::MultiFunction &NodeMFNetworkBuilder::get_default_fn(StringRef name)
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{
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Vector<fn::MFDataType, 10> input_types;
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Vector<fn::MFDataType, 10> output_types;
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for (const InputSocketRef *dsocket : dnode_->inputs()) {
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if (dsocket->is_available()) {
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std::optional<fn::MFDataType> data_type = socket_mf_type_get(*dsocket->typeinfo());
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if (data_type.has_value()) {
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input_types.append(*data_type);
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}
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}
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}
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for (const OutputSocketRef *dsocket : dnode_->outputs()) {
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if (dsocket->is_available()) {
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std::optional<fn::MFDataType> data_type = socket_mf_type_get(*dsocket->typeinfo());
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if (data_type.has_value()) {
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output_types.append(*data_type);
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}
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}
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}
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const fn::MultiFunction &fn = this->construct_fn<fn::CustomMF_DefaultOutput>(
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name, input_types, output_types);
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return fn;
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}
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static void insert_dummy_node(CommonMFNetworkBuilderData &common, const DNode &dnode)
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{
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constexpr int stack_capacity = 10;
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Vector<fn::MFDataType, stack_capacity> input_types;
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Vector<StringRef, stack_capacity> input_names;
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Vector<const InputSocketRef *, stack_capacity> input_dsockets;
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for (const InputSocketRef *dsocket : dnode->inputs()) {
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if (dsocket->is_available()) {
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std::optional<fn::MFDataType> data_type = socket_mf_type_get(*dsocket->bsocket()->typeinfo);
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if (data_type.has_value()) {
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input_types.append(*data_type);
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input_names.append(dsocket->name());
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input_dsockets.append(dsocket);
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}
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}
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}
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Vector<fn::MFDataType, stack_capacity> output_types;
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Vector<StringRef, stack_capacity> output_names;
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Vector<const OutputSocketRef *, stack_capacity> output_dsockets;
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for (const OutputSocketRef *dsocket : dnode->outputs()) {
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if (dsocket->is_available()) {
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std::optional<fn::MFDataType> data_type = socket_mf_type_get(*dsocket->bsocket()->typeinfo);
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if (data_type.has_value()) {
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output_types.append(*data_type);
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output_names.append(dsocket->name());
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output_dsockets.append(dsocket);
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}
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}
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}
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fn::MFDummyNode &dummy_node = common.network.add_dummy(
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dnode->name(), input_types, output_types, input_names, output_names);
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common.network_map.add(*dnode.context(), input_dsockets, dummy_node.inputs());
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common.network_map.add(*dnode.context(), output_dsockets, dummy_node.outputs());
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}
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static bool has_data_sockets(const DNode &dnode)
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{
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for (const InputSocketRef *socket : dnode->inputs()) {
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if (socket_is_mf_data_socket(*socket->bsocket()->typeinfo)) {
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return true;
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}
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}
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for (const OutputSocketRef *socket : dnode->outputs()) {
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if (socket_is_mf_data_socket(*socket->bsocket()->typeinfo)) {
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return true;
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}
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}
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return false;
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}
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static void foreach_node_to_insert(CommonMFNetworkBuilderData &common,
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FunctionRef<void(DNode)> callback)
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{
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common.tree.foreach_node([&](const DNode dnode) {
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if (dnode->is_group_node()) {
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return;
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}
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/* Don't insert non-root group input/output nodes, because they will be inlined. */
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if (!dnode.context()->is_root()) {
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if (dnode->is_group_input_node() || dnode->is_group_output_node()) {
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return;
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}
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}
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callback(dnode);
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});
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}
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/**
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* Expands all function nodes in the multi-function network. Nodes that don't have an expand
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* function, but do have data sockets, will get corresponding dummy nodes.
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*/
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static void insert_nodes(CommonMFNetworkBuilderData &common)
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{
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foreach_node_to_insert(common, [&](const DNode dnode) {
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const bNodeType *node_type = dnode->typeinfo();
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if (node_type->expand_in_mf_network != nullptr) {
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NodeMFNetworkBuilder builder{common, dnode};
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node_type->expand_in_mf_network(builder);
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}
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else if (has_data_sockets(dnode)) {
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insert_dummy_node(common, dnode);
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}
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});
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}
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template<typename From, typename To>
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static void add_implicit_conversion(DataTypeConversions &conversions)
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{
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static fn::CustomMF_Convert<From, To> function;
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conversions.add(fn::MFDataType::ForSingle<From>(), fn::MFDataType::ForSingle<To>(), function);
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}
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template<typename From, typename To, typename ConversionF>
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static void add_implicit_conversion(DataTypeConversions &conversions,
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StringRef name,
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ConversionF conversion)
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{
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static fn::CustomMF_SI_SO<From, To> function{name, conversion};
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conversions.add(fn::MFDataType::ForSingle<From>(), fn::MFDataType::ForSingle<To>(), function);
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}
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static DataTypeConversions create_implicit_conversions()
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{
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DataTypeConversions conversions;
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add_implicit_conversion<float, float2>(conversions);
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add_implicit_conversion<float, float3>(conversions);
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add_implicit_conversion<float, int32_t>(conversions);
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add_implicit_conversion<float, bool>(conversions);
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add_implicit_conversion<float, Color4f>(
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conversions, "float to Color4f", [](float a) { return Color4f(a, a, a, 1.0f); });
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add_implicit_conversion<float2, float3>(
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conversions, "float2 to float3", [](float2 a) { return float3(a.x, a.y, 0.0f); });
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add_implicit_conversion<float2, float>(
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conversions, "float2 to float", [](float2 a) { return a.length(); });
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add_implicit_conversion<float2, int32_t>(
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conversions, "float2 to int32_t", [](float2 a) { return (int32_t)a.length(); });
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add_implicit_conversion<float2, bool>(
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conversions, "float2 to bool", [](float2 a) { return a.length_squared() == 0.0f; });
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add_implicit_conversion<float2, Color4f>(
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conversions, "float2 to Color4f", [](float2 a) { return Color4f(a.x, a.y, 0.0f, 1.0f); });
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add_implicit_conversion<float3, bool>(
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conversions, "float3 to boolean", [](float3 a) { return a.length_squared() == 0.0f; });
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add_implicit_conversion<float3, float>(
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conversions, "Vector Length", [](float3 a) { return a.length(); });
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add_implicit_conversion<float3, int32_t>(
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conversions, "float3 to int32_t", [](float3 a) { return (int)a.length(); });
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add_implicit_conversion<float3, float2>(conversions);
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add_implicit_conversion<float3, Color4f>(
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conversions, "float3 to Color4f", [](float3 a) { return Color4f(a.x, a.y, a.z, 1.0f); });
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add_implicit_conversion<int32_t, bool>(conversions);
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add_implicit_conversion<int32_t, float>(conversions);
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add_implicit_conversion<int32_t, float2>(
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conversions, "int32 to float2", [](int32_t a) { return float2((float)a); });
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add_implicit_conversion<int32_t, float3>(
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conversions, "int32 to float3", [](int32_t a) { return float3((float)a); });
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add_implicit_conversion<bool, float>(conversions);
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add_implicit_conversion<bool, int32_t>(conversions);
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add_implicit_conversion<bool, float2>(
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conversions, "boolean to float2", [](bool a) { return (a) ? float2(1.0f) : float2(0.0f); });
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add_implicit_conversion<bool, float3>(
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conversions, "boolean to float3", [](bool a) { return (a) ? float3(1.0f) : float3(0.0f); });
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add_implicit_conversion<bool, Color4f>(conversions, "boolean to Color4f", [](bool a) {
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return (a) ? Color4f(1.0f, 1.0f, 1.0f, 1.0f) : Color4f(0.0f, 0.0f, 0.0f, 1.0f);
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});
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add_implicit_conversion<Color4f, bool>(conversions, "Color4f to boolean", [](Color4f a) {
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return a.r == 0.0f && a.g == 0.0f && a.b == 0.0f;
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});
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add_implicit_conversion<Color4f, float>(
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conversions, "Color4f to float", [](Color4f a) { return rgb_to_grayscale(a); });
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add_implicit_conversion<Color4f, float2>(
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conversions, "Color4f to float2", [](Color4f a) { return float2(a.r, a.g); });
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add_implicit_conversion<Color4f, float3>(
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conversions, "Color4f to float3", [](Color4f a) { return float3(a.r, a.g, a.b); });
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return conversions;
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}
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const DataTypeConversions &get_implicit_type_conversions()
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{
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static const DataTypeConversions conversions = create_implicit_conversions();
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return conversions;
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}
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void DataTypeConversions::convert(const CPPType &from_type,
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const CPPType &to_type,
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const void *from_value,
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void *to_value) const
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{
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const fn::MultiFunction *fn = this->get_conversion(MFDataType::ForSingle(from_type),
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MFDataType::ForSingle(to_type));
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BLI_assert(fn != nullptr);
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fn::MFContextBuilder context;
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fn::MFParamsBuilder params{*fn, 1};
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params.add_readonly_single_input(fn::GSpan(from_type, from_value, 1));
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params.add_uninitialized_single_output(fn::GMutableSpan(to_type, to_value, 1));
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fn->call({0}, params, context);
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}
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static fn::MFOutputSocket &insert_default_value_for_type(CommonMFNetworkBuilderData &common,
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fn::MFDataType type)
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{
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const fn::MultiFunction *default_fn;
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if (type.is_single()) {
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default_fn = &common.resources.construct<fn::CustomMF_GenericConstant>(
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AT, type.single_type(), type.single_type().default_value());
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}
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else {
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default_fn = &common.resources.construct<fn::CustomMF_GenericConstantArray>(
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AT, fn::GSpan(type.vector_base_type()));
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}
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fn::MFNode &node = common.network.add_function(*default_fn);
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return node.output(0);
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}
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static fn::MFOutputSocket *insert_unlinked_input(CommonMFNetworkBuilderData &common,
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const DInputSocket &dsocket)
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{
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BLI_assert(socket_is_mf_data_socket(*dsocket->typeinfo()));
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SocketMFNetworkBuilder builder{common, dsocket};
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socket_expand_in_mf_network(builder);
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fn::MFOutputSocket *built_socket = builder.built_socket();
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BLI_assert(built_socket != nullptr);
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return built_socket;
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}
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static void insert_links_and_unlinked_inputs(CommonMFNetworkBuilderData &common)
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{
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foreach_node_to_insert(common, [&](const DNode dnode) {
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for (const InputSocketRef *socket_ref : dnode->inputs()) {
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const DInputSocket to_dsocket{dnode.context(), socket_ref};
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if (!to_dsocket->is_available()) {
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continue;
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}
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if (!socket_is_mf_data_socket(*to_dsocket->typeinfo())) {
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continue;
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}
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Span<fn::MFInputSocket *> to_sockets = common.network_map.lookup(to_dsocket);
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BLI_assert(to_sockets.size() >= 1);
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const fn::MFDataType to_type = to_sockets[0]->data_type();
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Vector<DSocket> from_dsockets;
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to_dsocket.foreach_origin_socket([&](DSocket socket) { from_dsockets.append(socket); });
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if (from_dsockets.size() > 1) {
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fn::MFOutputSocket &from_socket = insert_default_value_for_type(common, to_type);
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for (fn::MFInputSocket *to_socket : to_sockets) {
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common.network.add_link(from_socket, *to_socket);
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}
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continue;
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}
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if (from_dsockets.is_empty()) {
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/* The socket is not linked. Need to use the value of the socket itself. */
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fn::MFOutputSocket *built_socket = insert_unlinked_input(common, to_dsocket);
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for (fn::MFInputSocket *to_socket : to_sockets) {
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common.network.add_link(*built_socket, *to_socket);
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}
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continue;
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}
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if (from_dsockets[0]->is_input()) {
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DInputSocket from_dsocket{from_dsockets[0]};
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fn::MFOutputSocket *built_socket = insert_unlinked_input(common, from_dsocket);
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for (fn::MFInputSocket *to_socket : to_sockets) {
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common.network.add_link(*built_socket, *to_socket);
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}
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continue;
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}
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DOutputSocket from_dsocket{from_dsockets[0]};
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fn::MFOutputSocket *from_socket = &common.network_map.lookup(from_dsocket);
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const fn::MFDataType from_type = from_socket->data_type();
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if (from_type != to_type) {
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const fn::MultiFunction *conversion_fn = get_implicit_type_conversions().get_conversion(
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from_type, to_type);
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if (conversion_fn != nullptr) {
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fn::MFNode &node = common.network.add_function(*conversion_fn);
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common.network.add_link(*from_socket, node.input(0));
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from_socket = &node.output(0);
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}
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else {
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from_socket = &insert_default_value_for_type(common, to_type);
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}
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}
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for (fn::MFInputSocket *to_socket : to_sockets) {
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common.network.add_link(*from_socket, *to_socket);
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}
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}
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});
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}
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/**
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* Expands all function nodes contained in the given node tree within the given multi-function
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* network.
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*
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* Returns a mapping between the original node tree and the generated nodes/sockets for further
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* processing.
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*/
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MFNetworkTreeMap insert_node_tree_into_mf_network(fn::MFNetwork &network,
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const DerivedNodeTree &tree,
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ResourceCollector &resources)
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{
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MFNetworkTreeMap network_map{tree, network};
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CommonMFNetworkBuilderData common{resources, network, network_map, tree};
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insert_nodes(common);
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insert_links_and_unlinked_inputs(common);
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return network_map;
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}
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/**
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* A single node is allowed to expand into multiple nodes before evaluation. Depending on what
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* nodes it expands to, it belongs a different type of the ones below.
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*/
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enum class NodeExpandType {
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SingleFunctionNode,
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MultipleFunctionNodes,
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HasDummyNodes,
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};
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/**
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* Checks how the given node expanded in the multi-function network. If it is only a single
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* function node, the corresponding function is returned as well.
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*/
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static NodeExpandType get_node_expand_type(MFNetworkTreeMap &network_map,
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const DNode &dnode,
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const fn::MultiFunction **r_single_function)
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{
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const fn::MFFunctionNode *single_function_node = nullptr;
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bool has_multiple_nodes = false;
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bool has_dummy_nodes = false;
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auto check_mf_node = [&](fn::MFNode &mf_node) {
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if (mf_node.is_function()) {
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if (single_function_node == nullptr) {
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single_function_node = &mf_node.as_function();
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}
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if (&mf_node != single_function_node) {
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has_multiple_nodes = true;
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}
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}
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else {
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BLI_assert(mf_node.is_dummy());
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has_dummy_nodes = true;
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}
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};
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for (const InputSocketRef *dsocket : dnode->inputs()) {
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if (dsocket->is_available()) {
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for (fn::MFInputSocket *mf_input :
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network_map.lookup(DInputSocket(dnode.context(), dsocket))) {
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check_mf_node(mf_input->node());
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}
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}
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}
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for (const OutputSocketRef *dsocket : dnode->outputs()) {
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if (dsocket->is_available()) {
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fn::MFOutputSocket &mf_output = network_map.lookup(DOutputSocket(dnode.context(), dsocket));
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check_mf_node(mf_output.node());
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}
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}
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if (has_dummy_nodes) {
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return NodeExpandType::HasDummyNodes;
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}
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if (has_multiple_nodes) {
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return NodeExpandType::MultipleFunctionNodes;
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}
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*r_single_function = &single_function_node->function();
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return NodeExpandType::SingleFunctionNode;
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}
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static const fn::MultiFunction &create_function_for_node_that_expands_into_multiple(
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const DNode &dnode,
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fn::MFNetwork &network,
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MFNetworkTreeMap &network_map,
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ResourceCollector &resources)
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{
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Vector<const fn::MFOutputSocket *> dummy_fn_inputs;
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for (const InputSocketRef *dsocket : dnode->inputs()) {
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if (dsocket->is_available()) {
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MFDataType data_type = *socket_mf_type_get(*dsocket->typeinfo());
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fn::MFOutputSocket &fn_input = network.add_input(data_type.to_string(), data_type);
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for (fn::MFInputSocket *mf_input :
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network_map.lookup(DInputSocket(dnode.context(), dsocket))) {
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network.add_link(fn_input, *mf_input);
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dummy_fn_inputs.append(&fn_input);
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}
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}
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}
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Vector<const fn::MFInputSocket *> dummy_fn_outputs;
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for (const OutputSocketRef *dsocket : dnode->outputs()) {
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if (dsocket->is_available()) {
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fn::MFOutputSocket &mf_output = network_map.lookup(DOutputSocket(dnode.context(), dsocket));
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MFDataType data_type = mf_output.data_type();
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fn::MFInputSocket &fn_output = network.add_output(data_type.to_string(), data_type);
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network.add_link(mf_output, fn_output);
|
|
dummy_fn_outputs.append(&fn_output);
|
|
}
|
|
}
|
|
|
|
fn::MFNetworkEvaluator &fn_evaluator = resources.construct<fn::MFNetworkEvaluator>(
|
|
__func__, std::move(dummy_fn_inputs), std::move(dummy_fn_outputs));
|
|
return fn_evaluator;
|
|
}
|
|
|
|
/**
|
|
* Returns a single multi-function for every node that supports it. This makes it easier to reuse
|
|
* the multi-function implementation of nodes in different contexts.
|
|
*/
|
|
MultiFunctionByNode get_multi_function_per_node(const DerivedNodeTree &tree,
|
|
ResourceCollector &resources)
|
|
{
|
|
/* Build a network that nodes can insert themselves into. However, the individual nodes are not
|
|
* connected. */
|
|
fn::MFNetwork &network = resources.construct<fn::MFNetwork>(__func__);
|
|
MFNetworkTreeMap network_map{tree, network};
|
|
MultiFunctionByNode functions_by_node;
|
|
|
|
CommonMFNetworkBuilderData common{resources, network, network_map, tree};
|
|
|
|
tree.foreach_node([&](DNode dnode) {
|
|
const bNodeType *node_type = dnode->typeinfo();
|
|
if (node_type->expand_in_mf_network == nullptr) {
|
|
/* This node does not have a multi-function implementation. */
|
|
return;
|
|
}
|
|
|
|
NodeMFNetworkBuilder builder{common, dnode};
|
|
node_type->expand_in_mf_network(builder);
|
|
|
|
const fn::MultiFunction *single_function = nullptr;
|
|
const NodeExpandType expand_type = get_node_expand_type(network_map, dnode, &single_function);
|
|
|
|
switch (expand_type) {
|
|
case NodeExpandType::HasDummyNodes: {
|
|
/* Dummy nodes cannot be executed, so skip them. */
|
|
break;
|
|
}
|
|
case NodeExpandType::SingleFunctionNode: {
|
|
/* This is the common case. Most nodes just expand to a single function. */
|
|
functions_by_node.add_new(dnode, single_function);
|
|
break;
|
|
}
|
|
case NodeExpandType::MultipleFunctionNodes: {
|
|
/* If a node expanded into multiple functions, a new function has to be created that
|
|
* combines those. */
|
|
const fn::MultiFunction &fn = create_function_for_node_that_expands_into_multiple(
|
|
dnode, network, network_map, resources);
|
|
functions_by_node.add_new(dnode, &fn);
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
return functions_by_node;
|
|
}
|
|
|
|
} // namespace blender::nodes
|