GCC Code Coverage Report

Directory: ./
File: openvdb/openvdb/unittest/TestGrid.cc
Date: 2022-07-25 17:40:05
Exec Total Coverage
Lines: 158 211 74.9%
Functions: 12 40 30.0%
Branches: 197 1696 11.6%
Line Branch Exec Source
1 // Copyright Contributors to the OpenVDB Project
2 // SPDX-License-Identifier: MPL-2.0
3
4 #include <openvdb/Exceptions.h>
5 #include <openvdb/openvdb.h>
6 #include <openvdb/Types.h>
7 #include <openvdb/util/Name.h>
8 #include <openvdb/math/Transform.h>
9 #include <openvdb/Grid.h>
10 #include <openvdb/tree/Tree.h>
11 #include <openvdb/util/CpuTimer.h>
12 #include "gtest/gtest.h"
13 #include <iostream>
14 #include <memory> // for std::make_unique
15
16 #define ASSERT_DOUBLES_EXACTLY_EQUAL(expected, actual) \
17 EXPECT_NEAR((expected), (actual), /*tolerance=*/0.0);
18
19 10 class TestGrid: public ::testing::Test
20 {
21 };
22
23
24 ////////////////////////////////////////
25
26
27 class ProxyTree: public openvdb::TreeBase
28 {
29 public:
30 using ValueType = int;
31 using BuildType = int;
32 using LeafNodeType = void;
33 using ValueAllCIter = void;
34 using ValueAllIter = void;
35 using ValueOffCIter = void;
36 using ValueOffIter = void;
37 using ValueOnCIter = void;
38 using ValueOnIter = void;
39 using TreeBasePtr = openvdb::TreeBase::Ptr;
40 using Ptr = openvdb::SharedPtr<ProxyTree>;
41 using ConstPtr = openvdb::SharedPtr<const ProxyTree>;
42
43 static const openvdb::Index DEPTH;
44 static const ValueType backg;
45
46
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 1 ProxyTree() {}
47
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 1 ProxyTree(const ValueType&) {}
48 ✗ ProxyTree(const ProxyTree&) = default;
49 4 ~ProxyTree() override = default;
50
51
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 1 static const openvdb::Name& treeType() { static const openvdb::Name s("proxy"); return s; }
52 ✗ const openvdb::Name& type() const override { return treeType(); }
53 ✗ openvdb::Name valueType() const override { return "proxy"; }
54 const ValueType& background() const { return backg; }
55
56 ✗ TreeBasePtr copy() const override { return TreeBasePtr(new ProxyTree(*this)); }
57
58 ✗ void readTopology(std::istream& is, bool = false) override { is.seekg(0, std::ios::beg); }
59 ✗ void writeTopology(std::ostream& os, bool = false) const override { os.seekp(0); }
60
61 ✗ void readBuffers(std::istream& is,
62 ✗ const openvdb::CoordBBox&, bool /*saveFloatAsHalf*/=false) override { is.seekg(0); }
63 ✗ void readNonresidentBuffers() const override {}
64 ✗ void readBuffers(std::istream& is, bool /*saveFloatAsHalf*/=false) override { is.seekg(0); }
65 ✗ void writeBuffers(std::ostream& os, bool /*saveFloatAsHalf*/=false) const override
66 ✗ { os.seekp(0, std::ios::beg); }
67
68 bool empty() const { return true; }
69 void clear() {}
70 void prune(const ValueType& = 0) {}
71 void clip(const openvdb::CoordBBox&) {}
72 ✗ void clipUnallocatedNodes() override {}
73 ✗ openvdb::Index32 unallocatedLeafCount() const override { return 0; }
74
75 ✗ void getIndexRange(openvdb::CoordBBox&) const override {}
76 ✗ bool evalLeafBoundingBox(openvdb::CoordBBox& bbox) const override
77 ✗ { bbox.min() = bbox.max() = openvdb::Coord(0, 0, 0); return false; }
78 ✗ bool evalActiveVoxelBoundingBox(openvdb::CoordBBox& bbox) const override
79 ✗ { bbox.min() = bbox.max() = openvdb::Coord(0, 0, 0); return false; }
80 ✗ bool evalActiveVoxelDim(openvdb::Coord& dim) const override
81 ✗ { dim = openvdb::Coord(0, 0, 0); return false; }
82 ✗ bool evalLeafDim(openvdb::Coord& dim) const override
83 ✗ { dim = openvdb::Coord(0, 0, 0); return false; }
84
85 ✗ openvdb::Index treeDepth() const override { return 0; }
86 ✗ openvdb::Index leafCount() const override { return 0; }
87 ✗ std::vector<openvdb::Index32> nodeCount() const override
88 ✗ { return std::vector<openvdb::Index32>(DEPTH, 0); }
89 ✗ openvdb::Index nonLeafCount() const override { return 0; }
90 ✗ openvdb::Index64 activeVoxelCount() const override { return 0UL; }
91 ✗ openvdb::Index64 inactiveVoxelCount() const override { return 0UL; }
92 ✗ openvdb::Index64 activeLeafVoxelCount() const override { return 0UL; }
93 ✗ openvdb::Index64 inactiveLeafVoxelCount() const override { return 0UL; }
94 ✗ openvdb::Index64 activeTileCount() const override { return 0UL; }
95 };
96
97 const openvdb::Index ProxyTree::DEPTH = 0;
98 const ProxyTree::ValueType ProxyTree::backg = 0;
99
100 using ProxyGrid = openvdb::Grid<ProxyTree>;
101
102
103 ////////////////////////////////////////
104
105
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 1 TEST_F(TestGrid, testGridRegistry)
106 {
107 using namespace openvdb::tree;
108
109 using TreeType = Tree<RootNode<InternalNode<LeafNode<float, 3>, 2> > >;
110 using GridType = openvdb::Grid<TreeType>;
111
112 1 openvdb::GridBase::clearRegistry();
113
114
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 1 EXPECT_TRUE(!GridType::isRegistered());
115 1 GridType::registerGrid();
116
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 1 EXPECT_TRUE(GridType::isRegistered());
117
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 2 EXPECT_THROW(GridType::registerGrid(), openvdb::KeyError);
118 1 GridType::unregisterGrid();
119
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 1 EXPECT_TRUE(!GridType::isRegistered());
120
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 1 EXPECT_NO_THROW(GridType::unregisterGrid());
121
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 1 EXPECT_TRUE(!GridType::isRegistered());
122
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 1 EXPECT_NO_THROW(GridType::registerGrid());
123
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 1 EXPECT_TRUE(GridType::isRegistered());
124
125 1 openvdb::GridBase::clearRegistry();
126 1 }
127
128
129
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 2 TEST_F(TestGrid, testConstPtr)
130 {
131 using namespace openvdb;
132
133 1 GridBase::ConstPtr constgrid = ProxyGrid::create();
134
135
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 2 EXPECT_EQ(Name("proxy"), constgrid->type());
136 1 }
137
138
139
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 1 TEST_F(TestGrid, testGetGrid)
140 {
141 using namespace openvdb;
142
143 1 GridBase::Ptr grid = FloatGrid::create(/*bg=*/0.0);
144 GridBase::ConstPtr constGrid = grid;
145
146
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 2 EXPECT_TRUE(grid->baseTreePtr());
147
148
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 1 EXPECT_TRUE(!gridPtrCast<DoubleGrid>(grid));
149
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 1 EXPECT_TRUE(!gridPtrCast<DoubleGrid>(grid));
150
151
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 1 EXPECT_TRUE(gridConstPtrCast<FloatGrid>(constGrid));
152
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 1 EXPECT_TRUE(!gridConstPtrCast<DoubleGrid>(constGrid));
153 1 }
154
155
156
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 2 TEST_F(TestGrid, testIsType)
157 {
158 using namespace openvdb;
159
160 1 GridBase::Ptr grid = FloatGrid::create();
161
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 1 EXPECT_TRUE(grid->isType<FloatGrid>());
162
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 1 EXPECT_TRUE(!grid->isType<DoubleGrid>());
163 1 }
164
165
166
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 2 TEST_F(TestGrid, testIsTreeUnique)
167 {
168 using namespace openvdb;
169
170 FloatGrid::Ptr grid = FloatGrid::create();
171
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 1 EXPECT_TRUE(grid->isTreeUnique());
172
173 // a shallow copy shares the same tree
174
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 1 FloatGrid::Ptr grid2 = grid->copy();
175
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 1 EXPECT_TRUE(!grid->isTreeUnique());
176
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 1 EXPECT_TRUE(!grid2->isTreeUnique());
177
178 // cleanup the shallow copy
179 grid2.reset();
180
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 1 EXPECT_TRUE(grid->isTreeUnique());
181
182 // copy with new tree
183
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 1 GridBase::Ptr grid3 = grid->copyGridWithNewTree();
184
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 1 EXPECT_TRUE(grid->isTreeUnique());
185
186 #if OPENVDB_ABI_VERSION_NUMBER >= 8
187 // shallow copy using GridBase
188
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 1 GridBase::Ptr grid4 = grid->copyGrid();
189
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 1 EXPECT_TRUE(!grid4->isTreeUnique());
190
191 // copy with new tree using GridBase
192
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 1 GridBase::Ptr grid5 = grid->copyGridWithNewTree();
193
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 1 EXPECT_TRUE(grid5->isTreeUnique());
194 #endif
195 1 }
196
197
198
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 1 TEST_F(TestGrid, testTransform)
199 {
200 2 ProxyGrid grid;
201
202 // Verify that the grid has a valid default transform.
203
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 1 EXPECT_TRUE(grid.transformPtr());
204
205 // Verify that a null transform pointer is not allowed.
206
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 2 EXPECT_THROW(grid.setTransform(openvdb::math::Transform::Ptr()),
207 openvdb::ValueError);
208
209
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 2 grid.setTransform(openvdb::math::Transform::createLinearTransform());
210
211
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 1 EXPECT_TRUE(grid.transformPtr());
212
213 // Verify that calling Transform-related Grid methods (Grid::voxelSize(), etc.)
214 // is the same as calling those methods on the Transform.
215
216
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 1 EXPECT_TRUE(grid.transform().voxelSize().eq(grid.voxelSize()));
217
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 1 EXPECT_TRUE(grid.transform().voxelSize(openvdb::Vec3d(0.1, 0.2, 0.3)).eq(
218 grid.voxelSize(openvdb::Vec3d(0.1, 0.2, 0.3))));
219
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 1 EXPECT_TRUE(grid.transform().indexToWorld(openvdb::Vec3d(0.1, 0.2, 0.3)).eq(
221 grid.indexToWorld(openvdb::Vec3d(0.1, 0.2, 0.3))));
222
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 1 EXPECT_TRUE(grid.transform().indexToWorld(openvdb::Coord(1, 2, 3)).eq(
223 grid.indexToWorld(openvdb::Coord(1, 2, 3))));
224
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 1 EXPECT_TRUE(grid.transform().worldToIndex(openvdb::Vec3d(0.1, 0.2, 0.3)).eq(
225 grid.worldToIndex(openvdb::Vec3d(0.1, 0.2, 0.3))));
226 1 }
227
228
229
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 1 TEST_F(TestGrid, testCopyGrid)
230 {
231 using namespace openvdb;
232
233 // set up a grid
234 1 const float fillValue1=5.0f;
235 FloatGrid::Ptr grid1 = createGrid<FloatGrid>(/*bg=*/fillValue1);
236 FloatTree& tree1 = grid1->tree();
237
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 1 tree1.setValue(Coord(-10,40,845), 3.456f);
238
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 2 tree1.setValue(Coord(1,-50,-8), 1.0f);
239
240 // create a new grid, copying the first grid
241
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 1 GridBase::Ptr grid2 = grid1->deepCopy();
242
243 // cast down to the concrete type to query values
244
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 1 FloatTree& tree2 = gridPtrCast<FloatGrid>(grid2)->tree();
245
246 // compare topology
247
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 1 EXPECT_TRUE(tree1.hasSameTopology(tree2));
248
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 1 EXPECT_TRUE(tree2.hasSameTopology(tree1));
249
250 // trees should be equal
251
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(fillValue1, tree2.getValue(Coord(1,2,3)));
252
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(3.456f, tree2.getValue(Coord(-10,40,845)));
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(1.0f, tree2.getValue(Coord(1,-50,-8)));
254
255 // change 1 value in tree2
256 Coord changeCoord(1, -500, -8);
257
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 2 tree2.setValue(changeCoord, 1.0f);
258
259 // topology should no longer match
260
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 1 EXPECT_TRUE(!tree1.hasSameTopology(tree2));
261
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 1 EXPECT_TRUE(!tree2.hasSameTopology(tree1));
262
263 // query changed value and make sure it's different between trees
264
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(fillValue1, tree1.getValue(changeCoord));
265
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(1.0f, tree2.getValue(changeCoord));
266
267 // shallow-copy a const grid but supply a new transform and meta map
268
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 1 EXPECT_EQ(1.0, grid1->transform().voxelSize().x());
269
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 1 EXPECT_EQ(size_t(0), grid1->metaCount());
270
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 1 EXPECT_EQ(Index(2), grid1->tree().leafCount());
271
272
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 1 math::Transform::Ptr xform(math::Transform::createLinearTransform(/*voxelSize=*/0.25));
273 MetaMap meta;
274
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 2 meta.insertMeta("test", Int32Metadata(4));
275
276 FloatGrid::ConstPtr constGrid1 = ConstPtrCast<const FloatGrid>(grid1);
277
278
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 2 GridBase::ConstPtr grid3 = constGrid1->copyGridReplacingMetadataAndTransform(meta, xform);
279
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 1 const FloatTree& tree3 = gridConstPtrCast<FloatGrid>(grid3)->tree();
280
281
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 1 EXPECT_EQ(0.25, grid3->transform().voxelSize().x());
282
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 1 EXPECT_EQ(size_t(1), grid3->metaCount());
283
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 1 EXPECT_EQ(Index(2), tree3.leafCount());
284
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 2 EXPECT_EQ(long(3), constGrid1->constTreePtr().use_count());
285 1 }
286
287
288
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 2 TEST_F(TestGrid, testValueConversion)
289 {
290 using namespace openvdb;
291
292 const Coord c0(-10, 40, 845), c1(1, -50, -8), c2(1, 2, 3);
293 1 const float fval0 = 3.25f, fval1 = 1.0f, fbkgd = 5.0f;
294
295 // Create a FloatGrid.
296 2 FloatGrid fgrid(fbkgd);
297 FloatTree& ftree = fgrid.tree();
298 ftree.setValue(c0, fval0);
299 ftree.setValue(c1, fval1);
300
301 // Copy the FloatGrid to a DoubleGrid.
302
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 2 DoubleGrid dgrid(fgrid);
303 DoubleTree& dtree = dgrid.tree();
304 // Compare topology.
305
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 1 EXPECT_TRUE(dtree.hasSameTopology(ftree));
306
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 1 EXPECT_TRUE(ftree.hasSameTopology(dtree));
307 // Compare values.
308
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(double(fbkgd), dtree.getValue(c2));
309
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(double(fval0), dtree.getValue(c0));
310
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 1 ASSERT_DOUBLES_EXACTLY_EQUAL(double(fval1), dtree.getValue(c1));
311
312 // Copy the FloatGrid to a BoolGrid.
313
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 2 BoolGrid bgrid(fgrid);
314 BoolTree& btree = bgrid.tree();
315 // Compare topology.
316
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 1 EXPECT_TRUE(btree.hasSameTopology(ftree));
317
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 1 EXPECT_TRUE(ftree.hasSameTopology(btree));
318 // Compare values.
319
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 1 EXPECT_EQ(bool(fbkgd), btree.getValue(c2));
320
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321
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 1 EXPECT_EQ(bool(fval1), btree.getValue(c1));
322
323 // Copy the FloatGrid to a Vec3SGrid.
324
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 2 Vec3SGrid vgrid(fgrid);
325 Vec3STree& vtree = vgrid.tree();
326 // Compare topology.
327
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 1 EXPECT_TRUE(vtree.hasSameTopology(ftree));
328
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329 // Compare values.
330
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331
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332
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333
334 // Verify that a Vec3SGrid can't be copied to an Int32Grid
335 // (because an Int32 can't be constructed from a Vec3S).
336
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 2 EXPECT_THROW(Int32Grid igrid2(vgrid), openvdb::TypeError);
337
338 // Verify that a grid can't be converted to another type with a different
339 // tree configuration.
340 using DTree23 = tree::Tree3<double, 2, 3>::Type;
341 using DGrid23 = Grid<DTree23>;
342
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 2 EXPECT_THROW(DGrid23 d23grid(fgrid), openvdb::TypeError);
343 1 }
344
345
346 ////////////////////////////////////////
347
348
349 template<typename GridT>
350 void
351 ✗ validateClippedGrid(const GridT& clipped, const typename GridT::ValueType& fg)
352 {
353 using namespace openvdb;
354
355 using ValueT = typename GridT::ValueType;
356
357 ✗ const CoordBBox bbox = clipped.evalActiveVoxelBoundingBox();
358 ✗ EXPECT_EQ(4, bbox.min().x());
359 ✗ EXPECT_EQ(4, bbox.min().y());
360 ✗ EXPECT_EQ(-6, bbox.min().z());
361 ✗ EXPECT_EQ(4, bbox.max().x());
362 ✗ EXPECT_EQ(4, bbox.max().y());
363 ✗ EXPECT_EQ(6, bbox.max().z());
364 ✗ EXPECT_EQ(6 + 6 + 1, int(clipped.activeVoxelCount()));
365 ✗ EXPECT_EQ(2, int(clipped.constTree().leafCount()));
366
367 typename GridT::ConstAccessor acc = clipped.getConstAccessor();
368 ✗ const ValueT bg = clipped.background();
369 Coord xyz;
370 int &x = xyz[0], &y = xyz[1], &z = xyz[2];
371 ✗ for (x = -10; x <= 10; ++x) {
372 ✗ for (y = -10; y <= 10; ++y) {
373 ✗ for (z = -10; z <= 10; ++z) {
374 ✗ if (x == 4 && y == 4 && z >= -6 && z <= 6) {
375 ✗ EXPECT_EQ(fg, acc.getValue(Coord(4, 4, z)));
376 } else {
377 ✗ EXPECT_EQ(bg, acc.getValue(Coord(x, y, z)));
378 }
379 }
380 }
381 }
382 }
383
384
385 // See also TestTools::testClipping()
386
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 2 TEST_F(TestGrid, testClipping)
387 {
388 using namespace openvdb;
389
390 1 const BBoxd clipBox(Vec3d(4.0, 4.0, -6.0), Vec3d(4.9, 4.9, 6.0));
391
392 {
393 1 const float fg = 5.f;
394
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 2 FloatGrid cube(0.f);
395 ✗ cube.fill(CoordBBox(Coord(-10), Coord(10)), /*value=*/fg, /*active=*/true);
396
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 1 cube.clipGrid(clipBox);
397
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 1 validateClippedGrid(cube, fg);
398 }
399 {
400 1 const bool fg = true;
401
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 2 BoolGrid cube(false);
402 ✗ cube.fill(CoordBBox(Coord(-10), Coord(10)), /*value=*/fg, /*active=*/true);
403
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 1 cube.clipGrid(clipBox);
404
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 1 validateClippedGrid(cube, fg);
405 }
406 {
407 const Vec3s fg(1.f, -2.f, 3.f);
408
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 2 Vec3SGrid cube(Vec3s(0.f));
409 ✗ cube.fill(CoordBBox(Coord(-10), Coord(10)), /*value=*/fg, /*active=*/true);
410
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 1 cube.clipGrid(clipBox);
411
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 1 validateClippedGrid(cube, fg);
412 }
413 /*
414 {// Benchmark multi-threaded copy construction
415 openvdb::util::CpuTimer timer;
416 openvdb::initialize();
417 openvdb::io::File file("/usr/pic1/Data/OpenVDB/LevelSetModels/crawler.vdb");
418 file.open();
419 openvdb::GridBase::Ptr baseGrid = file.readGrid("ls_crawler");
420 file.close();
421 openvdb::FloatGrid::Ptr grid = openvdb::gridPtrCast<openvdb::FloatGrid>(baseGrid);
422 //grid->tree().print();
423 timer.start("\nCopy construction");
424 openvdb::FloatTree fTree(grid->tree());
425 timer.stop();
426
427 timer.start("\nBoolean topology copy construction");
428 openvdb::BoolTree bTree(grid->tree(), false, openvdb::TopologyCopy());
429 timer.stop();
430
431 timer.start("\nBoolean topology union");
432 bTree.topologyUnion(fTree);
433 timer.stop();
434 //bTree.print();
435 }
436 */
437 1 }
438
439
440 ////////////////////////////////////////
441
442
443 namespace {
444
445 struct GridOp
446 {
447 bool isConst = false;
448 2 template<typename GridT> void operator()(const GridT&) { isConst = true; }
449 2 template<typename GridT> void operator()(GridT&) { isConst = false; }
450 };
451
452 } // anonymous namespace
453
454
455
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 2 TEST_F(TestGrid, testApply)
456 {
457 using namespace openvdb;
458
459 const GridBase::Ptr
460
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461
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462
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 1 doubleGrid = DoubleGrid::create(),
463
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 1 intGrid = Int32Grid::create();
464
465 const GridBase::ConstPtr
466
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467
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468
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 1 doubleCGrid = DoubleGrid::create(),
469 1 intCGrid = Int32Grid::create();
470
471 {
472 using AllowedGridTypes = TypeList<>;
473
474 // Verify that the functor is not applied to any of the grids.
475 GridOp op;
476 EXPECT_TRUE(!boolGrid->apply<AllowedGridTypes>(op));
477 EXPECT_TRUE(!boolCGrid->apply<AllowedGridTypes>(op));
478 EXPECT_TRUE(!floatGrid->apply<AllowedGridTypes>(op));
479 EXPECT_TRUE(!floatCGrid->apply<AllowedGridTypes>(op));
480 EXPECT_TRUE(!doubleGrid->apply<AllowedGridTypes>(op));
481 EXPECT_TRUE(!doubleCGrid->apply<AllowedGridTypes>(op));
482 EXPECT_TRUE(!intGrid->apply<AllowedGridTypes>(op));
483 EXPECT_TRUE(!intCGrid->apply<AllowedGridTypes>(op));
484 }
485 {
486 using AllowedGridTypes = TypeList<FloatGrid, FloatGrid, DoubleGrid>;
487
488 // Verify that the functor is applied only to grids of the allowed types
489 // and that their constness is respected.
490
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491
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492
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 1 EXPECT_TRUE(!intGrid->apply<AllowedGridTypes>(op));
493
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 2 EXPECT_TRUE(floatGrid->apply<AllowedGridTypes>(op)); EXPECT_TRUE(!op.isConst);
494
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 2 EXPECT_TRUE(doubleGrid->apply<AllowedGridTypes>(op)); EXPECT_TRUE(!op.isConst);
495
496
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 1 EXPECT_TRUE(!boolCGrid->apply<AllowedGridTypes>(op));
497
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 1 EXPECT_TRUE(!intCGrid->apply<AllowedGridTypes>(op));
498
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 2 EXPECT_TRUE(floatCGrid->apply<AllowedGridTypes>(op)); EXPECT_TRUE(op.isConst);
499
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 2 EXPECT_TRUE(doubleCGrid->apply<AllowedGridTypes>(op)); EXPECT_TRUE(op.isConst);
500 }
501 {
502 using AllowedGridTypes = TypeList<FloatGrid, DoubleGrid>;
503
504 // Verify that rvalue functors are supported.
505 1 int n = 0;
506
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 1 EXPECT_TRUE( !boolGrid->apply<AllowedGridTypes>([&n](GridBase&) { ++n; }));
507
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 1 EXPECT_TRUE( !intGrid->apply<AllowedGridTypes>([&n](GridBase&) { ++n; }));
508
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509
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510
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 1 EXPECT_TRUE( !boolCGrid->apply<AllowedGridTypes>([&n](const GridBase&) { ++n; }));
511
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 1 EXPECT_TRUE( !intCGrid->apply<AllowedGridTypes>([&n](const GridBase&) { ++n; }));
512
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513
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514
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 1 EXPECT_EQ(4, n);
515 }
516 1 }
517