Hans Goudey
c484b54453
This adds a boolean attribute and custom data type, to be used in the point separate node. It also adds it as supported data types in the random attribute and attribute fill nodes. There are more clever ways of storing a boolean attribute that make more sense in certain situations-- sets, bitfields, and others, this commit keeps it simple, saving those changes for when there is a proper use case for them. In any case, we will still probably always want the idea of a boolean attribute. Differential Revision: https://developer.blender.org/D9818
501 lines
17 KiB
C++
501 lines
17 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_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 DInputSocket *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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}
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}
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}
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for (const DOutputSocket *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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}
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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 DInputSocket *, stack_capacity> input_dsockets;
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for (const DInputSocket *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 DOutputSocket *, stack_capacity> output_dsockets;
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for (const DOutputSocket *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(input_dsockets, dummy_node.inputs());
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common.network_map.add(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 DInputSocket *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 DOutputSocket *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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/**
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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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for (const DNode *dnode : common.tree.nodes()) {
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const bNodeType *node_type = dnode->node_ref().bnode()->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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static void insert_group_inputs(CommonMFNetworkBuilderData &common)
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{
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for (const DGroupInput *group_input : common.tree.group_inputs()) {
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bNodeSocket *bsocket = group_input->bsocket();
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if (socket_is_mf_data_socket(*bsocket->typeinfo)) {
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bNodeSocketType *socktype = bsocket->typeinfo;
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BLI_assert(socktype->expand_in_mf_network != nullptr);
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SocketMFNetworkBuilder builder{common, *group_input};
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socktype->expand_in_mf_network(builder);
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fn::MFOutputSocket *from_socket = builder.built_socket();
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BLI_assert(from_socket != nullptr);
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common.network_map.add(*group_input, *from_socket);
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}
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}
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}
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static fn::MFOutputSocket *try_find_origin(CommonMFNetworkBuilderData &common,
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const DInputSocket &to_dsocket)
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{
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Span<const DOutputSocket *> from_dsockets = to_dsocket.linked_sockets();
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Span<const DGroupInput *> from_group_inputs = to_dsocket.linked_group_inputs();
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int total_linked_amount = from_dsockets.size() + from_group_inputs.size();
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BLI_assert(total_linked_amount <= 1);
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if (total_linked_amount == 0) {
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return nullptr;
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}
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if (from_dsockets.size() == 1) {
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const DOutputSocket &from_dsocket = *from_dsockets[0];
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if (!from_dsocket.is_available()) {
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return nullptr;
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}
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if (socket_is_mf_data_socket(*from_dsocket.bsocket()->typeinfo)) {
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return &common.network_map.lookup(from_dsocket);
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}
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return nullptr;
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}
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const DGroupInput &from_group_input = *from_group_inputs[0];
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if (socket_is_mf_data_socket(*from_group_input.bsocket()->typeinfo)) {
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return &common.network_map.lookup(from_group_input);
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}
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return nullptr;
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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, int32_t>(conversions);
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add_implicit_conversion<float, float3>(conversions);
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add_implicit_conversion<int32_t, float>(conversions);
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add_implicit_conversion<float, bool>(conversions);
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add_implicit_conversion<bool, float>(conversions);
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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<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<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<Color4f, float3>(
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conversions, "Color4f to float3", [](Color4f a) { return float3(a.r, a.g, a.b); });
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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<Color4f, float>(
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conversions, "Color4f to float", [](Color4f a) { return rgb_to_grayscale(a); });
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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<bool, float3>(
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conversions, "boolean to float3", [](bool a) { return (a) ? float3(1.0f) : float3(0.0f); });
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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 void insert_links(CommonMFNetworkBuilderData &common)
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{
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for (const DInputSocket *to_dsocket : common.tree.input_sockets()) {
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if (!to_dsocket->is_available()) {
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continue;
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}
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if (!to_dsocket->is_linked()) {
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continue;
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}
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if (!socket_is_mf_data_socket(*to_dsocket->bsocket()->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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fn::MFDataType to_type = to_sockets[0]->data_type();
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fn::MFOutputSocket *from_socket = try_find_origin(common, *to_dsocket);
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if (from_socket == nullptr) {
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from_socket = &insert_default_value_for_type(common, to_type);
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}
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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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static void insert_unlinked_input(CommonMFNetworkBuilderData &common, const DInputSocket &dsocket)
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{
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bNodeSocket *bsocket = dsocket.bsocket();
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bNodeSocketType *socktype = bsocket->typeinfo;
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BLI_assert(socktype->expand_in_mf_network != nullptr);
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SocketMFNetworkBuilder builder{common, dsocket};
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socktype->expand_in_mf_network(builder);
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fn::MFOutputSocket *from_socket = builder.built_socket();
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BLI_assert(from_socket != nullptr);
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for (fn::MFInputSocket *to_socket : common.network_map.lookup(dsocket)) {
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common.network.add_link(*from_socket, *to_socket);
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}
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}
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static void insert_unlinked_inputs(CommonMFNetworkBuilderData &common)
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{
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Vector<const DInputSocket *> unlinked_data_inputs;
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for (const DInputSocket *dsocket : common.tree.input_sockets()) {
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if (dsocket->is_available()) {
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if (socket_is_mf_data_socket(*dsocket->bsocket()->typeinfo)) {
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if (!dsocket->is_linked()) {
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insert_unlinked_input(common, *dsocket);
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}
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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_group_inputs(common);
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insert_links(common);
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insert_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 DInputSocket *dsocket : dnode.inputs()) {
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if (dsocket->is_available()) {
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for (fn::MFInputSocket *mf_input : network_map.lookup(*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 DOutputSocket *dsocket : dnode.outputs()) {
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if (dsocket->is_available()) {
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fn::MFOutputSocket &mf_output = network_map.lookup(*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 DInputSocket *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 : network_map.lookup(*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 DOutputSocket *dsocket : dnode.outputs()) {
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if (dsocket->is_available()) {
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fn::MFOutputSocket &mf_output = network_map.lookup(*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);
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dummy_fn_outputs.append(&fn_output);
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}
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}
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fn::MFNetworkEvaluator &fn_evaluator = resources.construct<fn::MFNetworkEvaluator>(
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__func__, std::move(dummy_fn_inputs), std::move(dummy_fn_outputs));
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return fn_evaluator;
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}
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/**
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* Returns a single multi-function for every node that supports it. This makes it easier to reuse
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* the multi-function implementation of nodes in different contexts.
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*/
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MultiFunctionByNode get_multi_function_per_node(const DerivedNodeTree &tree,
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ResourceCollector &resources)
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{
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/* Build a network that nodes can insert themselves into. However, the individual nodes are not
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* connected. */
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fn::MFNetwork &network = resources.construct<fn::MFNetwork>(__func__);
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MFNetworkTreeMap network_map{tree, network};
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MultiFunctionByNode functions_by_node;
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CommonMFNetworkBuilderData common{resources, network, network_map, tree};
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for (const DNode *dnode : tree.nodes()) {
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const bNodeType *node_type = dnode->typeinfo();
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if (node_type->expand_in_mf_network == nullptr) {
|
|
/* This node does not have a multi-function implementation. */
|
|
continue;
|
|
}
|
|
|
|
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
|