1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
* 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_pointcloud_types.h"
#include "BKE_attribute_access.hh"
#include "BKE_geometry_set.hh"
#include "BKE_lib_id.h"
#include "BKE_pointcloud.h"
#include "attribute_access_intern.hh"
/* -------------------------------------------------------------------- */
/** \name Geometry Component Implementation
* \{ */
PointCloudComponent::PointCloudComponent() : GeometryComponent(GEO_COMPONENT_TYPE_POINT_CLOUD)
{
}
PointCloudComponent::~PointCloudComponent()
{
this->clear();
}
GeometryComponent *PointCloudComponent::copy() const
{
PointCloudComponent *new_component = new PointCloudComponent();
if (pointcloud_ != nullptr) {
new_component->pointcloud_ = BKE_pointcloud_copy_for_eval(pointcloud_, false);
new_component->ownership_ = GeometryOwnershipType::Owned;
}
return new_component;
}
void PointCloudComponent::clear()
{
BLI_assert(this->is_mutable());
if (pointcloud_ != nullptr) {
if (ownership_ == GeometryOwnershipType::Owned) {
BKE_id_free(nullptr, pointcloud_);
}
pointcloud_ = nullptr;
}
}
bool PointCloudComponent::has_pointcloud() const
{
return pointcloud_ != nullptr;
}
/* Clear the component and replace it with the new point cloud. */
void PointCloudComponent::replace(PointCloud *pointcloud, GeometryOwnershipType ownership)
{
BLI_assert(this->is_mutable());
this->clear();
pointcloud_ = pointcloud;
ownership_ = ownership;
}
/* Return the point cloud and clear the component. The caller takes over responsibility for freeing
* the point cloud (if the component was responsible before). */
PointCloud *PointCloudComponent::release()
{
BLI_assert(this->is_mutable());
PointCloud *pointcloud = pointcloud_;
pointcloud_ = nullptr;
return pointcloud;
}
/* Get the point cloud from this component. This method can be used by multiple threads at the same
* time. Therefore, the returned point cloud should not be modified. No ownership is transferred.
*/
const PointCloud *PointCloudComponent::get_for_read() const
{
return pointcloud_;
}
/* Get the point cloud from this component. This method can only be used when the component is
* mutable, i.e. it is not shared. The returned point cloud can be modified. No ownership is
* transferred. */
PointCloud *PointCloudComponent::get_for_write()
{
BLI_assert(this->is_mutable());
if (ownership_ == GeometryOwnershipType::ReadOnly) {
pointcloud_ = BKE_pointcloud_copy_for_eval(pointcloud_, false);
ownership_ = GeometryOwnershipType::Owned;
}
return pointcloud_;
}
bool PointCloudComponent::is_empty() const
{
return pointcloud_ == nullptr;
}
bool PointCloudComponent::owns_direct_data() const
{
return ownership_ == GeometryOwnershipType::Owned;
}
void PointCloudComponent::ensure_owns_direct_data()
{
BLI_assert(this->is_mutable());
if (ownership_ != GeometryOwnershipType::Owned) {
pointcloud_ = BKE_pointcloud_copy_for_eval(pointcloud_, false);
ownership_ = GeometryOwnershipType::Owned;
}
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Attribute Access
* \{ */
int PointCloudComponent::attribute_domain_size(const AttributeDomain domain) const
{
if (pointcloud_ == nullptr) {
return 0;
}
if (domain != ATTR_DOMAIN_POINT) {
return 0;
}
return pointcloud_->totpoint;
}
namespace blender::bke {
template<typename T>
static GVArray make_array_read_attribute(const void *data, const int domain_size)
{
return VArray<T>::ForSpan(Span<T>((const T *)data, domain_size));
}
template<typename T>
static GVMutableArray make_array_write_attribute(void *data, const int domain_size)
{
return VMutableArray<T>::ForSpan(MutableSpan<T>((T *)data, domain_size));
}
/**
* In this function all the attribute providers for a point cloud component are created. Most data
* in this function is statically allocated, because it does not change over time.
*/
static ComponentAttributeProviders create_attribute_providers_for_point_cloud()
{
static auto update_custom_data_pointers = [](GeometryComponent &component) {
PointCloudComponent &pointcloud_component = static_cast<PointCloudComponent &>(component);
PointCloud *pointcloud = pointcloud_component.get_for_write();
if (pointcloud != nullptr) {
BKE_pointcloud_update_customdata_pointers(pointcloud);
}
};
static CustomDataAccessInfo point_access = {
[](GeometryComponent &component) -> CustomData * {
PointCloudComponent &pointcloud_component = static_cast<PointCloudComponent &>(component);
PointCloud *pointcloud = pointcloud_component.get_for_write();
return pointcloud ? &pointcloud->pdata : nullptr;
},
[](const GeometryComponent &component) -> const CustomData * {
const PointCloudComponent &pointcloud_component = static_cast<const PointCloudComponent &>(
component);
const PointCloud *pointcloud = pointcloud_component.get_for_read();
return pointcloud ? &pointcloud->pdata : nullptr;
},
update_custom_data_pointers};
static BuiltinCustomDataLayerProvider position("position",
ATTR_DOMAIN_POINT,
CD_PROP_FLOAT3,
CD_PROP_FLOAT3,
BuiltinAttributeProvider::NonCreatable,
BuiltinAttributeProvider::Writable,
BuiltinAttributeProvider::NonDeletable,
point_access,
make_array_read_attribute<float3>,
make_array_write_attribute<float3>,
nullptr);
static BuiltinCustomDataLayerProvider radius("radius",
ATTR_DOMAIN_POINT,
CD_PROP_FLOAT,
CD_PROP_FLOAT,
BuiltinAttributeProvider::Creatable,
BuiltinAttributeProvider::Writable,
BuiltinAttributeProvider::Deletable,
point_access,
make_array_read_attribute<float>,
make_array_write_attribute<float>,
nullptr);
static BuiltinCustomDataLayerProvider id("id",
ATTR_DOMAIN_POINT,
CD_PROP_INT32,
CD_PROP_INT32,
BuiltinAttributeProvider::Creatable,
BuiltinAttributeProvider::Writable,
BuiltinAttributeProvider::Deletable,
point_access,
make_array_read_attribute<int>,
make_array_write_attribute<int>,
nullptr);
static CustomDataAttributeProvider point_custom_data(ATTR_DOMAIN_POINT, point_access);
return ComponentAttributeProviders({&position, &radius, &id}, {&point_custom_data});
}
} // namespace blender::bke
const blender::bke::ComponentAttributeProviders *PointCloudComponent::get_attribute_providers()
const
{
static blender::bke::ComponentAttributeProviders providers =
blender::bke::create_attribute_providers_for_point_cloud();
return &providers;
}
/** \} */
|
