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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "DNA_volume_types.h"
#include "BKE_geometry_set.hh"
#include "BKE_lib_id.h"
#include "BKE_volume.h"
/* -------------------------------------------------------------------- */
/** \name Geometry Component Implementation
* \{ */
VolumeComponent::VolumeComponent() : GeometryComponent(GEO_COMPONENT_TYPE_VOLUME)
{
}
VolumeComponent::~VolumeComponent()
{
this->clear();
}
GeometryComponent *VolumeComponent::copy() const
{
VolumeComponent *new_component = new VolumeComponent();
if (volume_ != nullptr) {
new_component->volume_ = BKE_volume_copy_for_eval(volume_, false);
new_component->ownership_ = GeometryOwnershipType::Owned;
}
return new_component;
}
void VolumeComponent::clear()
{
BLI_assert(this->is_mutable());
if (volume_ != nullptr) {
if (ownership_ == GeometryOwnershipType::Owned) {
BKE_id_free(nullptr, volume_);
}
volume_ = nullptr;
}
}
bool VolumeComponent::has_volume() const
{
return volume_ != nullptr;
}
/* Clear the component and replace it with the new volume. */
void VolumeComponent::replace(Volume *volume, GeometryOwnershipType ownership)
{
BLI_assert(this->is_mutable());
this->clear();
volume_ = volume;
ownership_ = ownership;
}
/* Return the volume and clear the component. The caller takes over responsibility for freeing the
* volume (if the component was responsible before). */
Volume *VolumeComponent::release()
{
BLI_assert(this->is_mutable());
Volume *volume = volume_;
volume_ = nullptr;
return volume;
}
/* Get the volume from this component. This method can be used by multiple threads at the same
* time. Therefore, the returned volume should not be modified. No ownership is transferred. */
const Volume *VolumeComponent::get_for_read() const
{
return volume_;
}
/* Get the volume from this component. This method can only be used when the component is mutable,
* i.e. it is not shared. The returned volume can be modified. No ownership is transferred. */
Volume *VolumeComponent::get_for_write()
{
BLI_assert(this->is_mutable());
if (ownership_ == GeometryOwnershipType::ReadOnly) {
volume_ = BKE_volume_copy_for_eval(volume_, false);
ownership_ = GeometryOwnershipType::Owned;
}
return volume_;
}
bool VolumeComponent::owns_direct_data() const
{
return ownership_ == GeometryOwnershipType::Owned;
}
void VolumeComponent::ensure_owns_direct_data()
{
BLI_assert(this->is_mutable());
if (ownership_ != GeometryOwnershipType::Owned) {
volume_ = BKE_volume_copy_for_eval(volume_, false);
ownership_ = GeometryOwnershipType::Owned;
}
}
/** \} */
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