Jacques Lucke
0081200812
The multi-function network system was able to compose multiple multi-functions into a new one and to evaluate that efficiently. This functionality was heavily used by the particle nodes prototype a year ago. However, since then we only used multi-functions without the need to compose them in geometry nodes. The upcoming "fields" in geometry nodes will need a way to compose multi-functions again. Unfortunately, the code removed in this commit was not ideal for this different kind of function composition. I've been working on an alternative that will be added separately when it becomes needed. I've had to update all the function nodes, because their interface depended on the multi-function network data structure a bit. The actual multi-function implementations are still the same though.
270 lines
10 KiB
C++
270 lines
10 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 "DNA_modifier_types.h"
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#include "DEG_depsgraph_query.h"
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#include "NOD_geometry_exec.hh"
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#include "NOD_type_conversions.hh"
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#include "node_geometry_util.hh"
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using blender::nodes::geometry_nodes_eval_log::LocalGeoLogger;
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namespace blender::nodes {
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void GeoNodeExecParams::error_message_add(const NodeWarningType type, std::string message) const
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{
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if (provider_->logger == nullptr) {
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return;
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}
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LocalGeoLogger &local_logger = provider_->logger->local();
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local_logger.log_node_warning(provider_->dnode, type, std::move(message));
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}
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const bNodeSocket *GeoNodeExecParams::find_available_socket(const StringRef name) const
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{
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for (const InputSocketRef *socket : provider_->dnode->inputs()) {
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if (socket->is_available() && socket->name() == name) {
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return socket->bsocket();
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}
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}
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return nullptr;
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}
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GVArrayPtr GeoNodeExecParams::get_input_attribute(const StringRef name,
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const GeometryComponent &component,
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const AttributeDomain domain,
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const CustomDataType type,
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const void *default_value) const
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{
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const bNodeSocket *found_socket = this->find_available_socket(name);
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BLI_assert(found_socket != nullptr); /* There should always be available socket for the name. */
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const CPPType *cpp_type = bke::custom_data_type_to_cpp_type(type);
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const int64_t domain_size = component.attribute_domain_size(domain);
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if (default_value == nullptr) {
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default_value = cpp_type->default_value();
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}
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if (found_socket == nullptr) {
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, default_value);
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}
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if (found_socket->type == SOCK_STRING) {
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const std::string name = this->get_input<std::string>(found_socket->identifier);
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/* Try getting the attribute without the default value. */
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GVArrayPtr attribute = component.attribute_try_get_for_read(name, domain, type);
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if (attribute) {
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return attribute;
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}
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/* If the attribute doesn't exist, use the default value and output an error message
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* (except when the field is empty, to avoid spamming error messages, and not when
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* the domain is empty and we don't expect an attribute anyway). */
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if (!name.empty() && component.attribute_domain_size(domain) != 0) {
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this->error_message_add(NodeWarningType::Error,
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TIP_("No attribute with name \"") + name + "\"");
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}
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, default_value);
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}
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const DataTypeConversions &conversions = get_implicit_type_conversions();
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if (found_socket->type == SOCK_FLOAT) {
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const float value = this->get_input<float>(found_socket->identifier);
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BUFFER_FOR_CPP_TYPE_VALUE(*cpp_type, buffer);
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conversions.convert_to_uninitialized(CPPType::get<float>(), *cpp_type, &value, buffer);
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, buffer);
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}
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if (found_socket->type == SOCK_INT) {
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const int value = this->get_input<int>(found_socket->identifier);
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BUFFER_FOR_CPP_TYPE_VALUE(*cpp_type, buffer);
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conversions.convert_to_uninitialized(CPPType::get<int>(), *cpp_type, &value, buffer);
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, buffer);
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}
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if (found_socket->type == SOCK_VECTOR) {
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const float3 value = this->get_input<float3>(found_socket->identifier);
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BUFFER_FOR_CPP_TYPE_VALUE(*cpp_type, buffer);
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conversions.convert_to_uninitialized(CPPType::get<float3>(), *cpp_type, &value, buffer);
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, buffer);
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}
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if (found_socket->type == SOCK_RGBA) {
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const ColorGeometry4f value = this->get_input<ColorGeometry4f>(found_socket->identifier);
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BUFFER_FOR_CPP_TYPE_VALUE(*cpp_type, buffer);
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conversions.convert_to_uninitialized(
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CPPType::get<ColorGeometry4f>(), *cpp_type, &value, buffer);
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, buffer);
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}
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BLI_assert(false);
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return std::make_unique<fn::GVArray_For_SingleValue>(*cpp_type, domain_size, default_value);
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}
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CustomDataType GeoNodeExecParams::get_input_attribute_data_type(
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const StringRef name,
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const GeometryComponent &component,
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const CustomDataType default_type) const
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{
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const bNodeSocket *found_socket = this->find_available_socket(name);
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BLI_assert(found_socket != nullptr); /* There should always be available socket for the name. */
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if (found_socket == nullptr) {
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return default_type;
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}
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if (found_socket->type == SOCK_STRING) {
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const std::string name = this->get_input<std::string>(found_socket->identifier);
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std::optional<AttributeMetaData> info = component.attribute_get_meta_data(name);
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if (info) {
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return info->data_type;
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}
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return default_type;
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}
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if (found_socket->type == SOCK_FLOAT) {
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return CD_PROP_FLOAT;
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}
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if (found_socket->type == SOCK_VECTOR) {
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return CD_PROP_FLOAT3;
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}
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if (found_socket->type == SOCK_RGBA) {
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return CD_PROP_COLOR;
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}
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if (found_socket->type == SOCK_BOOLEAN) {
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return CD_PROP_BOOL;
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}
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BLI_assert(false);
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return default_type;
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}
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/**
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* If any of the corresponding input sockets are attributes instead of single values,
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* use the highest priority attribute domain from among them.
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* Otherwise return the default domain.
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*/
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AttributeDomain GeoNodeExecParams::get_highest_priority_input_domain(
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Span<std::string> names,
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const GeometryComponent &component,
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const AttributeDomain default_domain) const
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{
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Vector<AttributeDomain, 8> input_domains;
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for (const std::string &name : names) {
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const bNodeSocket *found_socket = this->find_available_socket(name);
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BLI_assert(found_socket != nullptr); /* A socket should be available socket for the name. */
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if (found_socket == nullptr) {
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continue;
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}
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if (found_socket->type == SOCK_STRING) {
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const std::string name = this->get_input<std::string>(found_socket->identifier);
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std::optional<AttributeMetaData> info = component.attribute_get_meta_data(name);
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if (info) {
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input_domains.append(info->domain);
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}
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}
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}
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if (input_domains.size() > 0) {
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return bke::attribute_domain_highest_priority(input_domains);
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}
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return default_domain;
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}
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void GeoNodeExecParams::check_input_access(StringRef identifier,
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const CPPType *requested_type) const
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{
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bNodeSocket *found_socket = nullptr;
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for (const InputSocketRef *socket : provider_->dnode->inputs()) {
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if (socket->identifier() == identifier) {
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found_socket = socket->bsocket();
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break;
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}
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}
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if (found_socket == nullptr) {
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std::cout << "Did not find an input socket with the identifier '" << identifier << "'.\n";
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std::cout << "Possible identifiers are: ";
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for (const InputSocketRef *socket : provider_->dnode->inputs()) {
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if (socket->is_available()) {
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std::cout << "'" << socket->identifier() << "', ";
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}
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}
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std::cout << "\n";
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BLI_assert_unreachable();
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}
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else if (found_socket->flag & SOCK_UNAVAIL) {
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std::cout << "The socket corresponding to the identifier '" << identifier
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<< "' is disabled.\n";
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BLI_assert_unreachable();
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}
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else if (!provider_->can_get_input(identifier)) {
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std::cout << "The identifier '" << identifier
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<< "' is valid, but there is no value for it anymore.\n";
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std::cout << "Most likely it has been extracted before.\n";
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BLI_assert_unreachable();
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}
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else if (requested_type != nullptr) {
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const CPPType &expected_type = *found_socket->typeinfo->get_geometry_nodes_cpp_type();
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if (*requested_type != expected_type) {
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std::cout << "The requested type '" << requested_type->name() << "' is incorrect. Expected '"
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<< expected_type.name() << "'.\n";
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BLI_assert_unreachable();
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}
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}
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}
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void GeoNodeExecParams::check_output_access(StringRef identifier, const CPPType &value_type) const
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{
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bNodeSocket *found_socket = nullptr;
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for (const OutputSocketRef *socket : provider_->dnode->outputs()) {
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if (socket->identifier() == identifier) {
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found_socket = socket->bsocket();
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break;
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}
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}
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if (found_socket == nullptr) {
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std::cout << "Did not find an output socket with the identifier '" << identifier << "'.\n";
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std::cout << "Possible identifiers are: ";
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for (const OutputSocketRef *socket : provider_->dnode->outputs()) {
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if (socket->is_available()) {
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std::cout << "'" << socket->identifier() << "', ";
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}
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}
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std::cout << "\n";
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BLI_assert_unreachable();
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}
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else if (found_socket->flag & SOCK_UNAVAIL) {
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std::cout << "The socket corresponding to the identifier '" << identifier
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<< "' is disabled.\n";
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BLI_assert_unreachable();
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}
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else if (!provider_->can_set_output(identifier)) {
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std::cout << "The identifier '" << identifier << "' has been set already.\n";
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BLI_assert_unreachable();
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}
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else {
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const CPPType &expected_type = *found_socket->typeinfo->get_geometry_nodes_cpp_type();
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if (value_type != expected_type) {
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std::cout << "The value type '" << value_type.name() << "' is incorrect. Expected '"
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<< expected_type.name() << "'.\n";
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BLI_assert_unreachable();
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}
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}
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}
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} // namespace blender::nodes
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