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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
#include "navmesh.hpp"
#include "worldspacedata.hpp"
#include <components/debug/debugging.hpp>
#include <components/debug/debuglog.hpp>
#include <components/detournavigator/generatenavmeshtile.hpp>
#include <components/detournavigator/gettilespositions.hpp>
#include <components/detournavigator/navmeshdb.hpp>
#include <components/detournavigator/navmeshdbutils.hpp>
#include <components/detournavigator/preparednavmeshdata.hpp>
#include <components/detournavigator/recastmesh.hpp>
#include <components/detournavigator/recastmeshprovider.hpp>
#include <components/detournavigator/serialization.hpp>
#include <components/detournavigator/settings.hpp>
#include <components/detournavigator/tileposition.hpp>
#include <components/misc/progressreporter.hpp>
#include <components/navmeshtool/protocol.hpp>
#include <components/sceneutil/workqueue.hpp>
#include <components/sqlite3/transaction.hpp>
#include <osg/Vec3f>
#include <atomic>
#include <chrono>
#include <cstddef>
#include <random>
#include <string_view>
#include <utility>
#include <vector>
namespace NavMeshTool
{
namespace
{
using DetourNavigator::AgentBounds;
using DetourNavigator::GenerateNavMeshTile;
using DetourNavigator::MeshSource;
using DetourNavigator::NavMeshDb;
using DetourNavigator::NavMeshTileInfo;
using DetourNavigator::PreparedNavMeshData;
using DetourNavigator::RecastMeshProvider;
using DetourNavigator::Settings;
using DetourNavigator::ShapeId;
using DetourNavigator::TileId;
using DetourNavigator::TilePosition;
using DetourNavigator::TilesPositionsRange;
using DetourNavigator::TileVersion;
using Sqlite3::Transaction;
void logGeneratedTiles(std::size_t provided, std::size_t expected)
{
Log(Debug::Info) << provided << "/" << expected << " ("
<< (static_cast<double>(provided) / static_cast<double>(expected) * 100)
<< "%) navmesh tiles are generated";
}
template <class T>
void serializeToStderr(const T& value)
{
const std::vector<std::byte> data = serialize(value);
Debug::getLockedRawStderr()->write(
reinterpret_cast<const char*>(data.data()), static_cast<std::streamsize>(data.size()));
}
void logGeneratedTilesMessage(std::size_t number)
{
serializeToStderr(GeneratedTiles{ static_cast<std::uint64_t>(number) });
}
struct LogGeneratedTiles
{
void operator()(std::size_t provided, std::size_t expected) const { logGeneratedTiles(provided, expected); }
};
class NavMeshTileConsumer final : public DetourNavigator::NavMeshTileConsumer
{
public:
std::atomic_size_t mExpected{ 0 };
explicit NavMeshTileConsumer(NavMeshDb&& db, bool removeUnusedTiles, bool writeBinaryLog)
: mDb(std::move(db))
, mRemoveUnusedTiles(removeUnusedTiles)
, mWriteBinaryLog(writeBinaryLog)
, mTransaction(mDb.startTransaction(Sqlite3::TransactionMode::Immediate))
, mNextTileId(mDb.getMaxTileId() + 1)
, mNextShapeId(mDb.getMaxShapeId() + 1)
{
}
std::size_t getProvided() const { return mProvided.load(); }
std::size_t getInserted() const { return mInserted.load(); }
std::size_t getUpdated() const { return mUpdated.load(); }
std::size_t getDeleted() const
{
const std::lock_guard lock(mMutex);
return mDeleted;
}
std::int64_t resolveMeshSource(const MeshSource& source) override
{
const std::lock_guard lock(mMutex);
return DetourNavigator::resolveMeshSource(mDb, source, mNextShapeId);
}
std::optional<NavMeshTileInfo> find(
ESM::RefId worldspace, const TilePosition& tilePosition, const std::vector<std::byte>& input) override
{
std::optional<NavMeshTileInfo> result;
std::lock_guard lock(mMutex);
if (const auto tile = mDb.findTile(worldspace, tilePosition, input))
{
NavMeshTileInfo info;
info.mTileId = tile->mTileId;
info.mVersion = tile->mVersion;
result.emplace(info);
}
return result;
}
void ignore(ESM::RefId worldspace, const TilePosition& tilePosition) override
{
if (mRemoveUnusedTiles)
{
std::lock_guard lock(mMutex);
mDeleted += static_cast<std::size_t>(mDb.deleteTilesAt(worldspace, tilePosition));
}
report();
}
void identity(ESM::RefId worldspace, const TilePosition& tilePosition, std::int64_t tileId) override
{
if (mRemoveUnusedTiles)
{
std::lock_guard lock(mMutex);
mDeleted += static_cast<std::size_t>(
mDb.deleteTilesAtExcept(worldspace, tilePosition, TileId{ tileId }));
}
report();
}
void insert(ESM::RefId worldspace, const TilePosition& tilePosition, std::int64_t version,
const std::vector<std::byte>& input, PreparedNavMeshData& data) override
{
{
std::lock_guard lock(mMutex);
if (mRemoveUnusedTiles)
mDeleted += static_cast<std::size_t>(mDb.deleteTilesAt(worldspace, tilePosition));
data.mUserId = static_cast<unsigned>(mNextTileId);
mDb.insertTile(
mNextTileId, worldspace, tilePosition, TileVersion{ version }, input, serialize(data));
++mNextTileId;
}
++mInserted;
report();
}
void update(ESM::RefId worldspace, const TilePosition& tilePosition, std::int64_t tileId,
std::int64_t version, PreparedNavMeshData& data) override
{
data.mUserId = static_cast<unsigned>(tileId);
{
std::lock_guard lock(mMutex);
if (mRemoveUnusedTiles)
mDeleted += static_cast<std::size_t>(
mDb.deleteTilesAtExcept(worldspace, tilePosition, TileId{ tileId }));
mDb.updateTile(TileId{ tileId }, TileVersion{ version }, serialize(data));
}
++mUpdated;
report();
}
void cancel(std::string_view reason) override
{
std::unique_lock lock(mMutex);
if (reason.find("database or disk is full") != std::string_view::npos)
mStatus = Status::NotEnoughSpace;
else
mStatus = Status::Cancelled;
mHasTile.notify_one();
}
Status wait()
{
constexpr std::chrono::seconds transactionInterval(1);
std::unique_lock lock(mMutex);
auto start = std::chrono::steady_clock::now();
while (mProvided < mExpected && mStatus == Status::Ok)
{
mHasTile.wait(lock);
const auto now = std::chrono::steady_clock::now();
if (now - start > transactionInterval)
{
mTransaction.commit();
mTransaction = mDb.startTransaction(Sqlite3::TransactionMode::Immediate);
start = now;
}
}
logGeneratedTiles(mProvided, mExpected);
if (mWriteBinaryLog)
logGeneratedTilesMessage(mProvided);
return mStatus;
}
void commit()
{
const std::lock_guard lock(mMutex);
mTransaction.commit();
}
void vacuum()
{
const std::lock_guard lock(mMutex);
mDb.vacuum();
}
void removeTilesOutsideRange(ESM::RefId worldspace, const TilesPositionsRange& range)
{
const std::lock_guard lock(mMutex);
mTransaction.commit();
Log(Debug::Info) << "Removing tiles outside processed range for worldspace \"" << worldspace << "\"...";
mDeleted += static_cast<std::size_t>(mDb.deleteTilesOutsideRange(worldspace, range));
mTransaction = mDb.startTransaction(Sqlite3::TransactionMode::Immediate);
}
private:
std::atomic_size_t mProvided{ 0 };
std::atomic_size_t mInserted{ 0 };
std::atomic_size_t mUpdated{ 0 };
std::size_t mDeleted = 0;
Status mStatus = Status::Ok;
mutable std::mutex mMutex;
NavMeshDb mDb;
const bool mRemoveUnusedTiles;
const bool mWriteBinaryLog;
Transaction mTransaction;
TileId mNextTileId;
std::condition_variable mHasTile;
Misc::ProgressReporter<LogGeneratedTiles> mReporter;
ShapeId mNextShapeId;
std::mutex mReportMutex;
void report()
{
const std::size_t provided = mProvided.fetch_add(1, std::memory_order_relaxed) + 1;
mReporter(provided, mExpected);
mHasTile.notify_one();
if (mWriteBinaryLog)
logGeneratedTilesMessage(provided);
}
};
}
Status generateAllNavMeshTiles(const AgentBounds& agentBounds, const Settings& settings, std::size_t threadsNumber,
bool removeUnusedTiles, bool writeBinaryLog, WorldspaceData& data, NavMeshDb&& db)
{
Log(Debug::Info) << "Generating navmesh tiles by " << threadsNumber << " parallel workers...";
SceneUtil::WorkQueue workQueue(threadsNumber);
auto navMeshTileConsumer
= std::make_shared<NavMeshTileConsumer>(std::move(db), removeUnusedTiles, writeBinaryLog);
std::size_t tiles = 0;
std::mt19937_64 random;
for (const std::unique_ptr<WorldspaceNavMeshInput>& input : data.mNavMeshInputs)
{
const auto range = DetourNavigator::makeTilesPositionsRange(Misc::Convert::toOsgXY(input->mAabb.m_min),
Misc::Convert::toOsgXY(input->mAabb.m_max), settings.mRecast);
if (removeUnusedTiles)
navMeshTileConsumer->removeTilesOutsideRange(input->mWorldspace, range);
std::vector<TilePosition> worldspaceTiles;
DetourNavigator::getTilesPositions(
range, [&](const TilePosition& tilePosition) { worldspaceTiles.push_back(tilePosition); });
tiles += worldspaceTiles.size();
if (writeBinaryLog)
serializeToStderr(ExpectedTiles{ static_cast<std::uint64_t>(tiles) });
navMeshTileConsumer->mExpected = tiles;
std::shuffle(worldspaceTiles.begin(), worldspaceTiles.end(), random);
for (const TilePosition& tilePosition : worldspaceTiles)
workQueue.addWorkItem(new GenerateNavMeshTile(input->mWorldspace, tilePosition,
RecastMeshProvider(input->mTileCachedRecastMeshManager), agentBounds, settings,
navMeshTileConsumer));
}
const Status status = navMeshTileConsumer->wait();
if (status == Status::Ok)
navMeshTileConsumer->commit();
const auto inserted = navMeshTileConsumer->getInserted();
const auto updated = navMeshTileConsumer->getUpdated();
const auto deleted = navMeshTileConsumer->getDeleted();
Log(Debug::Info) << "Generated navmesh for " << navMeshTileConsumer->getProvided() << " tiles, " << inserted
<< " are inserted, " << updated << " updated and " << deleted << " deleted";
if (inserted + updated + deleted > 0)
{
Log(Debug::Info) << "Vacuuming the database...";
navMeshTileConsumer->vacuum();
}
return status;
}
}
|
