Files
test/source/blender/blenkernel/intern/bake_items_socket.cc
Hans Goudey 19001c9e6c Cleanup: Move attribute domain enum to C++ header, use enum class
Each value is now out of the global namespace, so they can be shorter
and easier to read. Most of this commit just adds the necessary casting
and namespace specification. `enum class` can be forward declared since
it has a specified size. We will make use of that in the next commit.
2023-12-20 13:25:28 -05:00

281 lines
10 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#include "BKE_bake_items_socket.hh"
#include "BKE_geometry_fields.hh"
#include "BKE_node.hh"
#include "BKE_node_socket_value.hh"
namespace blender::bke::bake {
static const CPPType &get_socket_cpp_type(const eNodeSocketDatatype socket_type)
{
const char *socket_idname = nodeStaticSocketType(socket_type, 0);
const bNodeSocketType *typeinfo = nodeSocketTypeFind(socket_idname);
BLI_assert(typeinfo);
BLI_assert(typeinfo->geometry_nodes_cpp_type);
return *typeinfo->geometry_nodes_cpp_type;
}
Array<std::unique_ptr<BakeItem>> move_socket_values_to_bake_items(const Span<void *> socket_values,
const BakeSocketConfig &config)
{
BLI_assert(socket_values.size() == config.types.size());
BLI_assert(socket_values.size() == config.geometries_by_attribute.size());
Array<std::unique_ptr<BakeItem>> bake_items(socket_values.size());
/* Create geometry bake items first because they are used for field evaluation. */
for (const int i : socket_values.index_range()) {
const eNodeSocketDatatype socket_type = config.types[i];
if (socket_type != SOCK_GEOMETRY) {
continue;
}
void *socket_value = socket_values[i];
GeometrySet &geometry = *static_cast<GeometrySet *>(socket_value);
bake_items[i] = std::make_unique<GeometryBakeItem>(std::move(geometry));
}
for (const int i : socket_values.index_range()) {
const eNodeSocketDatatype socket_type = config.types[i];
void *socket_value = socket_values[i];
switch (socket_type) {
case SOCK_GEOMETRY: {
/* Handled already. */
break;
}
case SOCK_STRING: {
auto &value_variant = *static_cast<SocketValueVariant *>(socket_value);
bake_items[i] = std::make_unique<StringBakeItem>(value_variant.extract<std::string>());
break;
}
case SOCK_FLOAT:
case SOCK_VECTOR:
case SOCK_INT:
case SOCK_BOOLEAN:
case SOCK_ROTATION:
case SOCK_RGBA: {
auto &value_variant = *static_cast<SocketValueVariant *>(socket_value);
if (value_variant.is_context_dependent_field()) {
const fn::GField &field = value_variant.get<fn::GField>();
const AttrDomain domain = config.domains[i];
const std::string attribute_name = ".bake_" + std::to_string(i);
const Span<int> geometry_indices = config.geometries_by_attribute[i];
for (const int geometry_i : geometry_indices) {
BLI_assert(config.types[geometry_i] == SOCK_GEOMETRY);
GeometrySet &geometry =
static_cast<GeometryBakeItem *>(bake_items[geometry_i].get())->geometry;
if (geometry.has_pointcloud()) {
PointCloudComponent &component =
geometry.get_component_for_write<PointCloudComponent>();
try_capture_field_on_geometry(component, attribute_name, domain, field);
}
if (geometry.has_mesh()) {
MeshComponent &component = geometry.get_component_for_write<MeshComponent>();
try_capture_field_on_geometry(component, attribute_name, domain, field);
}
if (geometry.has_curves()) {
CurveComponent &component = geometry.get_component_for_write<CurveComponent>();
try_capture_field_on_geometry(component, attribute_name, domain, field);
}
if (geometry.has_instances()) {
InstancesComponent &component =
geometry.get_component_for_write<InstancesComponent>();
try_capture_field_on_geometry(component, attribute_name, domain, field);
}
}
bake_items[i] = std::make_unique<AttributeBakeItem>(attribute_name);
}
else {
value_variant.convert_to_single();
GPointer value = value_variant.get_single_ptr();
bake_items[i] = std::make_unique<PrimitiveBakeItem>(*value.type(), value.get());
}
break;
}
default:
break;
}
}
/* Cleanup geometries after fields have been evaluated. */
for (const int i : config.types.index_range()) {
const eNodeSocketDatatype socket_type = config.types[i];
if (socket_type != SOCK_GEOMETRY) {
continue;
}
GeometrySet &geometry = static_cast<GeometryBakeItem *>(bake_items[i].get())->geometry;
GeometryBakeItem::cleanup_geometry(geometry);
}
return bake_items;
}
[[nodiscard]] static bool copy_bake_item_to_socket_value(
const BakeItem &bake_item,
const eNodeSocketDatatype socket_type,
const FunctionRef<std::shared_ptr<AnonymousAttributeFieldInput>(const CPPType &type)>
make_attribute_field,
Map<std::string, AnonymousAttributeIDPtr> &r_attribute_map,
void *r_value)
{
switch (socket_type) {
case SOCK_GEOMETRY: {
if (const auto *item = dynamic_cast<const GeometryBakeItem *>(&bake_item)) {
new (r_value) GeometrySet(item->geometry);
return true;
}
return false;
}
case SOCK_FLOAT:
case SOCK_VECTOR:
case SOCK_INT:
case SOCK_BOOLEAN:
case SOCK_ROTATION:
case SOCK_RGBA: {
const CPPType &base_type = *socket_type_to_geo_nodes_base_cpp_type(socket_type);
if (const auto *item = dynamic_cast<const PrimitiveBakeItem *>(&bake_item)) {
if (item->type() == base_type) {
auto *value_variant = new (r_value) SocketValueVariant();
value_variant->store_single(socket_type, item->value());
return true;
}
return false;
}
if (const auto *item = dynamic_cast<const AttributeBakeItem *>(&bake_item)) {
std::shared_ptr<AnonymousAttributeFieldInput> attribute_field = make_attribute_field(
base_type);
const AnonymousAttributeIDPtr &attribute_id = attribute_field->anonymous_id();
fn::GField field{attribute_field};
new (r_value) SocketValueVariant(std::move(field));
r_attribute_map.add(item->name(), attribute_id);
return true;
}
return false;
}
case SOCK_STRING: {
if (const auto *item = dynamic_cast<const StringBakeItem *>(&bake_item)) {
new (r_value) SocketValueVariant(std::string(item->value()));
return true;
}
return false;
}
default:
return false;
}
return false;
}
static void rename_attributes(const Span<GeometrySet *> geometries,
const Map<std::string, AnonymousAttributeIDPtr> &attribute_map)
{
for (GeometrySet *geometry : geometries) {
for (const GeometryComponent::Type type : {GeometryComponent::Type::Mesh,
GeometryComponent::Type::Curve,
GeometryComponent::Type::PointCloud,
GeometryComponent::Type::Instance})
{
if (!geometry->has(type)) {
continue;
}
/* Avoid write access on the geometry when unnecessary to avoid copying data-blocks. */
const AttributeAccessor attributes_read_only = *geometry->get_component(type)->attributes();
if (std::none_of(attribute_map.keys().begin(),
attribute_map.keys().end(),
[&](const StringRef name) { return attributes_read_only.contains(name); }))
{
continue;
}
GeometryComponent &component = geometry->get_component_for_write(type);
MutableAttributeAccessor attributes = *component.attributes_for_write();
for (const MapItem<std::string, AnonymousAttributeIDPtr> &attribute_item :
attribute_map.items()) {
attributes.rename(attribute_item.key, *attribute_item.value);
}
}
}
}
void move_bake_items_to_socket_values(
const Span<BakeItem *> bake_items,
const BakeSocketConfig &config,
FunctionRef<std::shared_ptr<AnonymousAttributeFieldInput>(int, const CPPType &)>
make_attribute_field,
const Span<void *> r_socket_values)
{
Map<std::string, AnonymousAttributeIDPtr> attribute_map;
Vector<GeometrySet *> geometries;
for (const int i : bake_items.index_range()) {
const eNodeSocketDatatype socket_type = config.types[i];
const CPPType &type = get_socket_cpp_type(socket_type);
BakeItem *bake_item = bake_items[i];
void *r_socket_value = r_socket_values[i];
if (bake_item == nullptr) {
type.value_initialize(r_socket_value);
continue;
}
if (!copy_bake_item_to_socket_value(
*bake_item,
socket_type,
[&](const CPPType &attr_type) { return make_attribute_field(i, attr_type); },
attribute_map,
r_socket_value))
{
type.value_initialize(r_socket_value);
continue;
}
if (socket_type == SOCK_GEOMETRY) {
auto &item = *static_cast<GeometryBakeItem *>(bake_item);
item.geometry.clear();
geometries.append(static_cast<GeometrySet *>(r_socket_value));
}
}
rename_attributes(geometries, attribute_map);
}
void copy_bake_items_to_socket_values(
const Span<const BakeItem *> bake_items,
const BakeSocketConfig &config,
FunctionRef<std::shared_ptr<AnonymousAttributeFieldInput>(int, const CPPType &)>
make_attribute_field,
const Span<void *> r_socket_values)
{
Map<std::string, AnonymousAttributeIDPtr> attribute_map;
Vector<GeometrySet *> geometries;
for (const int i : bake_items.index_range()) {
const eNodeSocketDatatype socket_type = config.types[i];
const CPPType &type = get_socket_cpp_type(socket_type);
const BakeItem *bake_item = bake_items[i];
void *r_socket_value = r_socket_values[i];
if (bake_item == nullptr) {
type.value_initialize(r_socket_value);
continue;
}
if (!copy_bake_item_to_socket_value(
*bake_item,
socket_type,
[&](const CPPType &attr_type) { return make_attribute_field(i, attr_type); },
attribute_map,
r_socket_value))
{
type.value_initialize(r_socket_value);
continue;
}
if (socket_type == SOCK_GEOMETRY) {
geometries.append(static_cast<GeometrySet *>(r_socket_value));
}
}
rename_attributes(geometries, attribute_map);
}
} // namespace blender::bke::bake