| | 1 | | #if GDX_UNSAFE_COLLECTIONS |
| | 2 | | // Copyright (c) 2020-2024 dotBunny Inc. |
| | 3 | | // dotBunny licenses this file to you under the BSL-1.0 license. |
| | 4 | | // See the LICENSE file in the project root for more information. |
| | 5 | |
|
| | 6 | | using System.Runtime.CompilerServices; |
| | 7 | | using Unity.Collections; |
| | 8 | | using Unity.Collections.LowLevel.Unsafe; |
| | 9 | | using Unity.Jobs; |
| | 10 | | using Unity.Jobs.LowLevel.Unsafe; |
| | 11 | | using System.Diagnostics; |
| | 12 | | using System.Runtime.InteropServices; |
| | 13 | | using Unity.Burst; |
| | 14 | |
|
| | 15 | | namespace GDX.Collections |
| | 16 | | { |
| | 17 | | /// <summary> |
| | 18 | | /// An adapter collection for external data arrays that allows constant-time insertion, deletion, and lookup by |
| | 19 | | /// handle, as well as array-like iteration. |
| | 20 | | /// </summary> |
| | 21 | | [DebuggerDisplay("Count = {Count}, Length = {Length}, IsCreated = {IsCreated}, IsEmpty = {IsEmpty}")] |
| | 22 | | [DebuggerTypeProxy(typeof(UnsafeSparseSetDebugView))] |
| | 23 | | [StructLayout(LayoutKind.Sequential)] |
| | 24 | | [BurstCompatible(GenericTypeArguments = new[] { typeof(int) })] |
| | 25 | | public unsafe struct UnsafeSparseSet : INativeDisposable |
| | 26 | | { |
| | 27 | | public const int MinimumCapacity = JobsUtility.CacheLineSize / (sizeof(int) * 2); |
| | 28 | |
|
| | 29 | | [NativeDisableUnsafePtrRestriction] |
| | 30 | | public void* Data; |
| | 31 | | /// <summary> |
| | 32 | | /// Holds references to the sparse array for swapping indices. |
| | 33 | | /// </summary> |
| | 34 | | public int* DenseArray |
| | 35 | | { |
| | 36 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 37 | | get => (int*)Data + Length; |
| | 38 | | } |
| | 39 | |
|
| | 40 | | /// <summary> |
| | 41 | | /// Holds references to dense array indices. |
| | 42 | | /// </summary> |
| | 43 | | /// <remarks> |
| | 44 | | /// Its own indices are claimed and freed via a free-list. |
| | 45 | | /// </remarks> |
| | 46 | | public int* SparseArray |
| | 47 | | { |
| | 48 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 49 | | get => (int*)Data; |
| | 50 | | } |
| | 51 | |
|
| | 52 | | /// <summary> |
| | 53 | | /// How many indices are being used currently? |
| | 54 | | /// </summary> |
| | 55 | | public int Count; |
| | 56 | |
|
| | 57 | | /// <summary> |
| | 58 | | /// The first free (currently unused) index in the sparse array. |
| | 59 | | /// </summary> |
| | 60 | | public int FreeIndex; |
| | 61 | |
|
| | 62 | | /// <summary> |
| | 63 | | /// The current capacity of both the sparse and dense arrays. |
| | 64 | | /// </summary> |
| | 65 | | public int Length; |
| | 66 | |
|
| | 67 | | public AllocatorManager.AllocatorHandle Allocator; |
| | 68 | |
|
| | 69 | | /// <summary> |
| | 70 | | /// Whether this Sparse Set has been allocated (and not yet deallocated). |
| | 71 | | /// </summary> |
| | 72 | | /// <value>True if this list has been allocated (and not yet deallocated).</value> |
| | 73 | | public bool IsCreated { [MethodImpl(MethodImplOptions.AggressiveInlining)] get { return Data != null; } } |
| | 74 | |
|
| | 75 | | /// <summary> |
| | 76 | | /// Whether the Sparse Set is empty. |
| | 77 | | /// </summary> |
| | 78 | | /// <value>True if the Sparse Set is empty or has not been constructed.</value> |
| | 79 | | public bool IsEmpty { [MethodImpl(MethodImplOptions.AggressiveInlining)] get { return !IsCreated || Length == 0; |
| | 80 | |
|
| | 81 | | /// <summary> |
| | 82 | | /// Create an <see cref="UnsafeSparseSet" /> with an <paramref name="initialCapacity" />. |
| | 83 | | /// </summary> |
| | 84 | | /// <param name="initialCapacity">The initial capacity of the sparse and dense int arrays.</param> |
| | 85 | | /// <param name="allocator">The <see cref="AllocatorManager.AllocatorHandle" /> type to use.</param> |
| | 86 | | public UnsafeSparseSet(int initialCapacity, AllocatorManager.AllocatorHandle allocator) |
| | 87 | | { |
| | 88 | | initialCapacity = initialCapacity > MinimumCapacity ? initialCapacity : MinimumCapacity; |
| | 89 | | --initialCapacity; |
| | 90 | | initialCapacity |= initialCapacity >> 1; |
| | 91 | | initialCapacity |= initialCapacity >> 2; |
| | 92 | | initialCapacity |= initialCapacity >> 4; |
| | 93 | | initialCapacity |= initialCapacity >> 8; |
| | 94 | | initialCapacity |= initialCapacity >> 16; |
| | 95 | | ++initialCapacity; |
| | 96 | |
|
| | 97 | | Data = allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, initialCapacity * 2); |
| | 98 | | Count = 0; |
| | 99 | | FreeIndex = 0; |
| | 100 | | Length = initialCapacity; |
| | 101 | | Allocator = allocator; |
| | 102 | |
|
| | 103 | | for (int i = 0; i < initialCapacity; i++) |
| | 104 | | { |
| | 105 | | DenseArray[i] = -1; |
| | 106 | | SparseArray[i] = i + 1; |
| | 107 | | } |
| | 108 | | } |
| | 109 | |
|
| | 110 | | /// <summary> |
| | 111 | | /// Create an <see cref="UnsafeSparseSet" /> with an <paramref name="initialCapacity" />. |
| | 112 | | /// </summary> |
| | 113 | | /// <param name="initialCapacity">The initial capacity of the sparse and dense int arrays.</param> |
| | 114 | | /// <param name="allocator">The <see cref="Unity.Collections.Allocator" /> type to use.</param> |
| | 115 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 116 | | public UnsafeSparseSet(int initialCapacity, AllocatorManager.AllocatorHandle allocator, out ulong* versionArray) |
| | 117 | | { |
| | 118 | | initialCapacity = initialCapacity > MinimumCapacity ? initialCapacity : MinimumCapacity; |
| | 119 | | --initialCapacity; |
| | 120 | | initialCapacity |= initialCapacity >> 1; |
| | 121 | | initialCapacity |= initialCapacity >> 2; |
| | 122 | | initialCapacity |= initialCapacity >> 4; |
| | 123 | | initialCapacity |= initialCapacity >> 8; |
| | 124 | | initialCapacity |= initialCapacity >> 16; |
| | 125 | | ++initialCapacity; |
| | 126 | |
|
| | 127 | | Data = allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, initialCapacity * 2); |
| | 128 | | Count = 0; |
| | 129 | | FreeIndex = 0; |
| | 130 | | Length = initialCapacity; |
| | 131 | | Allocator = allocator; |
| | 132 | | versionArray = (ulong*)allocator.Allocate(sizeof(ulong), JobsUtility.CacheLineSize, initialCapacity); |
| | 133 | |
|
| | 134 | | for (int i = 0; i < initialCapacity; i++) |
| | 135 | | { |
| | 136 | | DenseArray[i] = -1; |
| | 137 | | SparseArray[i] = i + 1; |
| | 138 | | versionArray[i] = 1; |
| | 139 | | } |
| | 140 | | } |
| | 141 | |
|
| | 142 | | /// <summary> |
| | 143 | | /// Adds a sparse/dense index pair to the set and expands the arrays if necessary. |
| | 144 | | /// </summary> |
| | 145 | | /// <param name="expandBy">How many indices to expand by.</param> |
| | 146 | | /// <param name="sparseIndex">The sparse index allocated.</param> |
| | 147 | | /// <param name="denseIndex">The dense index allocated.</param> |
| | 148 | | /// <returns>True if the index pool expanded.</returns> |
| | 149 | | public bool AddWithExpandCheck(int expandBy, out int sparseIndex, out int denseIndex) |
| | 150 | | { |
| | 151 | | int indexToClaim = FreeIndex; |
| | 152 | | int currentCapacity = Length; |
| | 153 | | bool needsExpansion = false; |
| | 154 | |
|
| | 155 | | if (indexToClaim >= currentCapacity) |
| | 156 | | { |
| | 157 | | // We're out of space, the last free index points to nothing. Allocate more indices. |
| | 158 | | needsExpansion = true; |
| | 159 | |
|
| | 160 | | int newCapacity = currentCapacity + expandBy; |
| | 161 | |
|
| | 162 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 163 | | --newCapacity; |
| | 164 | | newCapacity |= newCapacity >> 1; |
| | 165 | | newCapacity |= newCapacity >> 2; |
| | 166 | | newCapacity |= newCapacity >> 4; |
| | 167 | | newCapacity |= newCapacity >> 8; |
| | 168 | | newCapacity |= newCapacity >> 16; |
| | 169 | | ++newCapacity; |
| | 170 | |
|
| | 171 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 172 | |
|
| | 173 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 174 | | int* newSparseArray = (int*)newData; |
| | 175 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 176 | | { |
| | 177 | | newSparseArray[i] = i + 1; |
| | 178 | | } |
| | 179 | |
|
| | 180 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 181 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 182 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 183 | | { |
| | 184 | | newDenseArray[i] = -1; |
| | 185 | | } |
| | 186 | |
|
| | 187 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 188 | |
|
| | 189 | | Data = newData; |
| | 190 | | Length = newCapacity; |
| | 191 | | } |
| | 192 | |
|
| | 193 | | int nextFreeIndex = SparseArray[indexToClaim]; |
| | 194 | | DenseArray[Count] = indexToClaim; // Point the next dense id at our newly claimed sparse index. |
| | 195 | | SparseArray[indexToClaim] = Count; // Point our newly claimed sparse index at the dense index. |
| | 196 | | denseIndex = Count; |
| | 197 | |
|
| | 198 | | ++Count; |
| | 199 | | FreeIndex = nextFreeIndex; // Set the free list head for next time. |
| | 200 | |
|
| | 201 | | sparseIndex = indexToClaim; |
| | 202 | | return needsExpansion; |
| | 203 | | } |
| | 204 | |
|
| | 205 | | /// <summary> |
| | 206 | | /// Adds a sparse/dense index pair to the set and expands the arrays if necessary. |
| | 207 | | /// </summary> |
| | 208 | | /// <param name="expandBy">How many indices to expand by.</param> |
| | 209 | | /// <param name="sparseIndex">The sparse index allocated.</param> |
| | 210 | | /// <param name="denseIndex">The dense index allocated.</param> |
| | 211 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 212 | | /// <returns>True if the index pool expanded.</returns> |
| | 213 | | public bool AddWithExpandCheck(int expandBy, out int sparseIndex, out int denseIndex, ref ulong* versionArray) |
| | 214 | | { |
| | 215 | | int indexToClaim = FreeIndex; |
| | 216 | | int currentCapacity = Length; |
| | 217 | | bool needsExpansion = false; |
| | 218 | |
|
| | 219 | | if (indexToClaim >= currentCapacity) |
| | 220 | | { |
| | 221 | | // We're out of space, the last free index points to nothing. Allocate more indices. |
| | 222 | | needsExpansion = true; |
| | 223 | |
|
| | 224 | | int newCapacity = currentCapacity + expandBy; |
| | 225 | |
|
| | 226 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 227 | | --newCapacity; |
| | 228 | | newCapacity |= newCapacity >> 1; |
| | 229 | | newCapacity |= newCapacity >> 2; |
| | 230 | | newCapacity |= newCapacity >> 4; |
| | 231 | | newCapacity |= newCapacity >> 8; |
| | 232 | | newCapacity |= newCapacity >> 16; |
| | 233 | | ++newCapacity; |
| | 234 | |
|
| | 235 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 236 | |
|
| | 237 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 238 | | int* newSparseArray = (int*)newData; |
| | 239 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 240 | | { |
| | 241 | | newSparseArray[i] = i + 1; |
| | 242 | | } |
| | 243 | |
|
| | 244 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 245 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 246 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 247 | | { |
| | 248 | | newDenseArray[i] = -1; |
| | 249 | | } |
| | 250 | |
|
| | 251 | | ulong* newVersionArray = |
| | 252 | | |
| | 253 | | UnsafeUtility.MemCpy(newVersionArray, versionArray, sizeof(ulong) * currentCapacity); |
| | 254 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 255 | | { |
| | 256 | | newVersionArray[i] = 1; |
| | 257 | | } |
| | 258 | |
|
| | 259 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 260 | | Allocator.Free(versionArray, sizeof(ulong), JobsUtility.CacheLineSize, currentCapacity); |
| | 261 | | versionArray = newVersionArray; |
| | 262 | |
|
| | 263 | | Data = newData; |
| | 264 | | Length = newCapacity; |
| | 265 | | } |
| | 266 | |
|
| | 267 | | int nextFreeIndex = SparseArray[indexToClaim]; |
| | 268 | | DenseArray[Count] = indexToClaim; // Point the next dense id at our newly claimed sparse index. |
| | 269 | | SparseArray[indexToClaim] = Count; // Point our newly claimed sparse index at the dense index. |
| | 270 | | denseIndex = Count; |
| | 271 | |
|
| | 272 | | ++Count; |
| | 273 | | FreeIndex = nextFreeIndex; // Set the free list head for next time. |
| | 274 | |
|
| | 275 | | sparseIndex = indexToClaim; |
| | 276 | | return needsExpansion; |
| | 277 | | } |
| | 278 | |
|
| | 279 | | /// <summary> |
| | 280 | | /// Adds a sparse/dense index pair to the set without checking if the set needs to expand. |
| | 281 | | /// </summary> |
| | 282 | | /// <param name="sparseIndex">The sparse index allocated.</param> |
| | 283 | | /// <param name="denseIndex">The dense index allocated.</param> |
| | 284 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 285 | | public void AddUnchecked(out int sparseIndex, out int denseIndex) |
| | 286 | | { |
| | 287 | | int indexToClaim = FreeIndex; |
| | 288 | | int nextFreeIndex = SparseArray[indexToClaim]; |
| | 289 | | DenseArray[Count] = indexToClaim; // Point the next dense id at our newly claimed sparse index. |
| | 290 | | SparseArray[indexToClaim] = Count; // Point our newly claimed sparse index at the dense index. |
| | 291 | |
|
| | 292 | | sparseIndex = indexToClaim; |
| | 293 | | denseIndex = Count; |
| | 294 | | ++Count; |
| | 295 | | FreeIndex = nextFreeIndex; // Set the free list head for next time. |
| | 296 | | } |
| | 297 | |
|
| | 298 | | /// <summary> |
| | 299 | | /// Adds a sparse/dense index pair to the set without checking if the set needs to expand. |
| | 300 | | /// </summary> |
| | 301 | | /// <param name="sparseIndex">The sparse index allocated.</param> |
| | 302 | | /// <param name="denseIndex">The dense index allocated.</param> |
| | 303 | | /// <param name="versionArray">The array containing the version number to check against.</param> |
| | 304 | | /// <param name="version">Enables detection of use-after-free errors when using the sparse index as a reference. |
| | 305 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 306 | | public void AddUnchecked(out int sparseIndex, out int denseIndex, ulong* versionArray, out ulong version) |
| | 307 | | { |
| | 308 | | int indexToClaim = FreeIndex; |
| | 309 | | int nextFreeIndex = SparseArray[indexToClaim]; |
| | 310 | | DenseArray[Count] = indexToClaim; // Point the next dense id at our newly claimed sparse index. |
| | 311 | | SparseArray[indexToClaim] = Count; // Point our newly claimed sparse index at the dense index. |
| | 312 | |
|
| | 313 | | version = versionArray[indexToClaim]; |
| | 314 | | sparseIndex = indexToClaim; |
| | 315 | | denseIndex = Count; |
| | 316 | |
|
| | 317 | | ++Count; |
| | 318 | | FreeIndex = nextFreeIndex; // Set the free list head for next time. |
| | 319 | | } |
| | 320 | |
|
| | 321 | | /// <summary> |
| | 322 | | /// Gets the value of the sparse array at the given index without any data validation. |
| | 323 | | /// </summary> |
| | 324 | | /// <param name="sparseIndex">The index to check in the sparse array.</param> |
| | 325 | | /// <returns>The dense index at the given sparse index.</returns> |
| | 326 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 327 | | public int GetDenseIndexUnchecked(int sparseIndex) |
| | 328 | | { |
| | 329 | | return SparseArray[sparseIndex]; |
| | 330 | | } |
| | 331 | |
|
| | 332 | | /// <summary> |
| | 333 | | /// Gets the value of the sparse array at the given index, |
| | 334 | | /// or -1 if the dense and sparse indices don't point to each other or if the dense index is outside the den |
| | 335 | | /// </summary> |
| | 336 | | /// <param name="sparseIndex">The index in the sparse array to check against.</param> |
| | 337 | | /// <returns>The dense index pointed to by the current sparse index, or -1 if invalid.</returns> |
| | 338 | | public int GetDenseIndexWithBoundsCheck(int sparseIndex) |
| | 339 | | { |
| | 340 | | if (sparseIndex >= 0 && sparseIndex < Length) |
| | 341 | | { |
| | 342 | | int denseIndex = SparseArray[sparseIndex]; |
| | 343 | |
|
| | 344 | | if (denseIndex < Count && denseIndex >= 0) |
| | 345 | | { |
| | 346 | | int sparseIndexAtDenseIndex = DenseArray[denseIndex]; |
| | 347 | |
|
| | 348 | | if (sparseIndex == sparseIndexAtDenseIndex) |
| | 349 | | { |
| | 350 | | return denseIndex; |
| | 351 | | } |
| | 352 | | } |
| | 353 | | } |
| | 354 | |
|
| | 355 | | return -1; |
| | 356 | | } |
| | 357 | |
|
| | 358 | | /// <summary> |
| | 359 | | /// Gets the value of the sparse array at the given index, |
| | 360 | | /// or -1 if the version number does not match. |
| | 361 | | /// </summary> |
| | 362 | | /// <param name="sparseIndex">The index in the sparse array to check against.</param> |
| | 363 | | /// <param name="version">The version number associated with the sparse index.</param> |
| | 364 | | /// <param name="versionArray">The array containing the version number to check against.</param> |
| | 365 | | /// <returns>The dense index pointed to by the current sparse index, or -1 if invalid.</returns> |
| | 366 | | public int GetDenseIndexWithVersionCheck(int sparseIndex, ulong version, ulong* versionArray) |
| | 367 | | { |
| | 368 | | int denseIndex = SparseArray[sparseIndex]; |
| | 369 | | ulong versionAtSparseIndex = versionArray[sparseIndex]; |
| | 370 | |
|
| | 371 | | if (version == versionAtSparseIndex) |
| | 372 | | { |
| | 373 | | return denseIndex; |
| | 374 | | } |
| | 375 | |
|
| | 376 | | return -1; |
| | 377 | | } |
| | 378 | |
|
| | 379 | | /// <summary> |
| | 380 | | /// Gets the value of the sparse array at the given index, |
| | 381 | | /// or -1 if the given sparse index is invalid.. |
| | 382 | | /// </summary> |
| | 383 | | /// <param name="sparseIndex">The index in the sparse array to check against.</param> |
| | 384 | | /// <param name="version">The version number associated with the sparse index.</param> |
| | 385 | | /// <param name="versionArray">The array containing the version number to check against.</param> |
| | 386 | | /// <returns>The dense index pointed to by the current sparse index, or -1 if invalid.</returns> |
| | 387 | | public int GetDenseIndexWithBoundsAndVersionCheck(int sparseIndex, ulong version, ulong* versionArray) |
| | 388 | | { |
| | 389 | | if (sparseIndex >= 0 && sparseIndex < Length) |
| | 390 | | { |
| | 391 | | int denseIndex = SparseArray[sparseIndex]; |
| | 392 | | ulong versionAtSparseIndex = versionArray[sparseIndex]; |
| | 393 | |
|
| | 394 | | if (versionAtSparseIndex == version && denseIndex < Count && denseIndex >= 0) |
| | 395 | | { |
| | 396 | | int sparseIndexAtDenseIndex = DenseArray[denseIndex]; |
| | 397 | |
|
| | 398 | | if (sparseIndex == sparseIndexAtDenseIndex) |
| | 399 | | { |
| | 400 | | return denseIndex; |
| | 401 | | } |
| | 402 | | } |
| | 403 | | } |
| | 404 | |
|
| | 405 | | return -1; |
| | 406 | | } |
| | 407 | |
|
| | 408 | | /// <summary> |
| | 409 | | /// Removes the entry corresponding to the sparse index if the entry is within bounds and currently in use. |
| | 410 | | /// </summary> |
| | 411 | | /// <param name="sparseIndexToRemove">The sparse index corresponding to the entry to remove. Cleared to -1 in th |
| | 412 | | /// <param name="dataIndexToSwapFrom"> |
| | 413 | | /// Set the data array value at this index to default after swapping with the data array |
| | 414 | | /// value at indexToSwapTo. |
| | 415 | | /// </param> |
| | 416 | | /// <param name="dataIndexToSwapTo">Replace the data array value at this index with the data array value at inde |
| | 417 | | /// <returns>True if the index reference was valid, and thus removed.</returns> |
| | 418 | | public bool RemoveWithBoundsCheck(ref int sparseIndexToRemove, out int dataIndexToSwapFrom, out int dataIndexToS |
| | 419 | | { |
| | 420 | | dataIndexToSwapFrom = -1; |
| | 421 | | dataIndexToSwapTo = -1; |
| | 422 | | bool didRemove = false; |
| | 423 | | if (sparseIndexToRemove >= 0 && sparseIndexToRemove < Length) |
| | 424 | | { |
| | 425 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 426 | |
|
| | 427 | | if (denseIndexToRemove >= 0 && denseIndexToRemove < Count) |
| | 428 | | { |
| | 429 | | int sparseIndexAtDenseIndex = DenseArray[denseIndexToRemove]; |
| | 430 | | int newLength = Count - 1; |
| | 431 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 432 | |
|
| | 433 | | if (denseIndexToRemove < Count && sparseIndexAtDenseIndex == sparseIndexToRemove) |
| | 434 | | { |
| | 435 | | didRemove = true; |
| | 436 | | // Swap the entry being removed with the last entry. |
| | 437 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 438 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 439 | |
|
| | 440 | | dataIndexToSwapFrom = newLength; |
| | 441 | | dataIndexToSwapTo = denseIndexToRemove; |
| | 442 | |
|
| | 443 | | // Clear the dense index, for debugging purposes |
| | 444 | | DenseArray[newLength] = -1; |
| | 445 | |
|
| | 446 | | // Add the sparse index to the free list. |
| | 447 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 448 | | FreeIndex = sparseIndexToRemove; |
| | 449 | |
|
| | 450 | | Count = newLength; |
| | 451 | | } |
| | 452 | | } |
| | 453 | | } |
| | 454 | |
|
| | 455 | | sparseIndexToRemove = -1; |
| | 456 | |
|
| | 457 | | return didRemove; |
| | 458 | | } |
| | 459 | |
|
| | 460 | | /// <summary> |
| | 461 | | /// Removes the associated sparse/dense index pair from active use. |
| | 462 | | /// calls. |
| | 463 | | /// </summary> |
| | 464 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 465 | | /// <param name="version"> |
| | 466 | | /// The version number of the int used to access the sparse index. Used to guard against accessing |
| | 467 | | /// indices that have been removed and reused. |
| | 468 | | /// </param> |
| | 469 | | /// <param name="versionArray">The array containing the version number to check against.</param> |
| | 470 | | /// <param name="indexToSwapFrom"> |
| | 471 | | /// Set the data array value at this index to default after swapping with the data array |
| | 472 | | /// value at indexToSwapTo. |
| | 473 | | /// </param> |
| | 474 | | /// <param name="indexToSwapTo">Replace the data array value at this index with the data array value at indexToS |
| | 475 | | /// <returns>True if the element was successfully removed.</returns> |
| | 476 | | public bool RemoveWithBoundsAndVersionChecks(ref int sparseIndexToRemove, ulong version, ulong* versionArray, ou |
| | 477 | | { |
| | 478 | | indexToSwapFrom = -1; |
| | 479 | | indexToSwapTo = -1; |
| | 480 | | bool didRemove = false; |
| | 481 | | if (sparseIndexToRemove >= 0 && sparseIndexToRemove < Length) |
| | 482 | | { |
| | 483 | | ulong sparseIndexVersion = versionArray[sparseIndexToRemove]; |
| | 484 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 485 | |
|
| | 486 | | if (sparseIndexVersion == version && denseIndexToRemove >= 0 && denseIndexToRemove < Count) |
| | 487 | | { |
| | 488 | | int sparseIndexAtDenseIndex = DenseArray[denseIndexToRemove]; |
| | 489 | | int newLength = Count - 1; |
| | 490 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 491 | |
|
| | 492 | | if (denseIndexToRemove < Count && sparseIndexAtDenseIndex == sparseIndexToRemove) |
| | 493 | | { |
| | 494 | | didRemove = true; |
| | 495 | | versionArray[sparseIndexToRemove] = sparseIndexVersion + 1; |
| | 496 | | // Swap the entry being removed with the last entry. |
| | 497 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 498 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 499 | |
|
| | 500 | | indexToSwapFrom = newLength; |
| | 501 | | indexToSwapTo = denseIndexToRemove; |
| | 502 | |
|
| | 503 | | // Clear the dense index, for debugging purposes |
| | 504 | | DenseArray[newLength] = -1; |
| | 505 | |
|
| | 506 | | // Add the sparse index to the free list. |
| | 507 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 508 | | FreeIndex = sparseIndexToRemove; |
| | 509 | |
|
| | 510 | | Count = newLength; |
| | 511 | | } |
| | 512 | | } |
| | 513 | | } |
| | 514 | |
|
| | 515 | | sparseIndexToRemove = -1; |
| | 516 | |
|
| | 517 | | return didRemove; |
| | 518 | | } |
| | 519 | |
|
| | 520 | | /// <summary> |
| | 521 | | /// Removes the associated sparse/dense index pair from active use. |
| | 522 | | /// </summary> |
| | 523 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 524 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 525 | | public void RemoveUnchecked(int sparseIndexToRemove) |
| | 526 | | { |
| | 527 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 528 | | int newLength = Count - 1; |
| | 529 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 530 | |
|
| | 531 | | // Swap the entry being removed with the last entry. |
| | 532 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 533 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 534 | |
|
| | 535 | | // Clear the dense index, for debugging purposes |
| | 536 | | DenseArray[newLength] = -1; |
| | 537 | |
|
| | 538 | | // Add the sparse index to the free list. |
| | 539 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 540 | | FreeIndex = sparseIndexToRemove; |
| | 541 | |
|
| | 542 | | Count = newLength; |
| | 543 | | } |
| | 544 | |
|
| | 545 | | /// <summary> |
| | 546 | | /// Removes the associated sparse/dense index pair from active use and increments the version. |
| | 547 | | /// </summary> |
| | 548 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 549 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 550 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 551 | | public void RemoveUnchecked(int sparseIndexToRemove, ulong* versionArray) |
| | 552 | | { |
| | 553 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 554 | | int newLength = Count - 1; |
| | 555 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 556 | |
|
| | 557 | | // Swap the entry being removed with the last entry. |
| | 558 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 559 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 560 | |
|
| | 561 | | // Clear the dense index, for debugging purposes |
| | 562 | | DenseArray[newLength] = -1; |
| | 563 | |
|
| | 564 | | // Add the sparse index to the free list. |
| | 565 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 566 | | versionArray[sparseIndexToRemove] += 1; |
| | 567 | | FreeIndex = sparseIndexToRemove; |
| | 568 | |
|
| | 569 | | Count = newLength; |
| | 570 | | } |
| | 571 | |
|
| | 572 | | /// <summary> |
| | 573 | | /// Removes the associated sparse/dense index pair from active use. |
| | 574 | | /// Out parameters used to manage parallel data arrays. |
| | 575 | | /// </summary> |
| | 576 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 577 | | /// <param name="indexToSwapTo">Replace the data array value at this index with the data array value at indexToS |
| | 578 | | /// <param name="indexToSwapFrom"> |
| | 579 | | /// Set the data array value at this index to default after swapping with the data array |
| | 580 | | /// value at indexToSwapTo. |
| | 581 | | /// </param> |
| | 582 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 583 | | public void RemoveUnchecked(int sparseIndexToRemove, out int indexToSwapFrom, out int indexToSwapTo) |
| | 584 | | { |
| | 585 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 586 | | int newLength = Count - 1; |
| | 587 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 588 | |
|
| | 589 | | // Swap the entry being removed with the last entry. |
| | 590 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 591 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 592 | |
|
| | 593 | | // Clear the dense index, for debugging purposes |
| | 594 | | DenseArray[newLength] = -1; |
| | 595 | |
|
| | 596 | | // Add the sparse index to the free list. |
| | 597 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 598 | | FreeIndex = sparseIndexToRemove; |
| | 599 | |
|
| | 600 | | Count = newLength; |
| | 601 | |
|
| | 602 | | indexToSwapTo = denseIndexToRemove; |
| | 603 | | indexToSwapFrom = newLength; |
| | 604 | | } |
| | 605 | |
|
| | 606 | | /// <summary> |
| | 607 | | /// Removes the associated sparse/dense index pair from active use and increments the version. |
| | 608 | | /// Out parameters used to manage parallel data arrays. |
| | 609 | | /// </summary> |
| | 610 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 611 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 612 | | /// <param name="indexToSwapTo">Replace the data array value at this index with the data array value at indexToS |
| | 613 | | /// <param name="indexToSwapFrom"> |
| | 614 | | /// Set the data array value at this index to default after swapping with the data array |
| | 615 | | /// value at indexToSwapTo. |
| | 616 | | /// </param> |
| | 617 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 618 | | public void RemoveUnchecked(int sparseIndexToRemove, ulong* versionArray, out int indexToSwapFrom, out int index |
| | 619 | | { |
| | 620 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 621 | | int newLength = Count - 1; |
| | 622 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 623 | |
|
| | 624 | | // Swap the entry being removed with the last entry. |
| | 625 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 626 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 627 | |
|
| | 628 | | // Clear the dense index, for debugging purposes |
| | 629 | | DenseArray[newLength] = -1; |
| | 630 | |
|
| | 631 | | // Add the sparse index to the free list. |
| | 632 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 633 | | versionArray[sparseIndexToRemove] += 1; |
| | 634 | | FreeIndex = sparseIndexToRemove; |
| | 635 | |
|
| | 636 | | Count = newLength; |
| | 637 | |
|
| | 638 | | indexToSwapTo = denseIndexToRemove; |
| | 639 | | indexToSwapFrom = newLength; |
| | 640 | | } |
| | 641 | |
|
| | 642 | | /// <summary> |
| | 643 | | /// Removes the associated sparse/dense index pair from active use. |
| | 644 | | /// </summary> |
| | 645 | | /// <param name="denseIndexToRemove">The dense index associated with the sparse index to remove.</param> |
| | 646 | | public void RemoveUncheckedFromDenseIndex(int denseIndexToRemove) |
| | 647 | | { |
| | 648 | | int sparseIndexToRemove = DenseArray[denseIndexToRemove]; |
| | 649 | | int newLength = Count - 1; |
| | 650 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 651 | |
|
| | 652 | | // Swap the entry being removed with the last entry. |
| | 653 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 654 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 655 | |
|
| | 656 | | // Clear the dense index, for debugging purposes |
| | 657 | | DenseArray[newLength] = -1; |
| | 658 | |
|
| | 659 | | // Add the sparse index to the free list. |
| | 660 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 661 | | FreeIndex = sparseIndexToRemove; |
| | 662 | |
|
| | 663 | | Count = newLength; |
| | 664 | | } |
| | 665 | |
|
| | 666 | | /// <summary> |
| | 667 | | /// Removes the associated sparse/dense index pair from active use. |
| | 668 | | /// </summary> |
| | 669 | | /// <param name="denseIndexToRemove">The dense index associated with the sparse index to remove.</param> |
| | 670 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 671 | | public void RemoveUncheckedFromDenseIndex(int denseIndexToRemove, ulong* versionArray) |
| | 672 | | { |
| | 673 | | int sparseIndexToRemove = DenseArray[denseIndexToRemove]; |
| | 674 | | int newLength = Count - 1; |
| | 675 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 676 | |
|
| | 677 | | // Swap the entry being removed with the last entry. |
| | 678 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 679 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 680 | |
|
| | 681 | | // Clear the dense index, for debugging purposes |
| | 682 | | DenseArray[newLength] = -1; |
| | 683 | |
|
| | 684 | | // Add the sparse index to the free list. |
| | 685 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 686 | | versionArray[sparseIndexToRemove] += 1; |
| | 687 | | FreeIndex = sparseIndexToRemove; |
| | 688 | |
|
| | 689 | | Count = newLength; |
| | 690 | | } |
| | 691 | |
|
| | 692 | | /// <summary> |
| | 693 | | /// Removes the associated sparse/dense index pair from active use. |
| | 694 | | /// Out parameter used to manage parallel data arrays. |
| | 695 | | /// </summary> |
| | 696 | | /// <param name="denseIndexToRemove">The sparse index to remove.</param> |
| | 697 | | /// <param name="indexToSwapFrom"> |
| | 698 | | /// Set the data array value at this index to default after swapping with the data array |
| | 699 | | /// value at denseIndexToRemove. |
| | 700 | | /// </param> |
| | 701 | | public void RemoveUncheckedFromDenseIndex(int denseIndexToRemove, out int indexToSwapFrom) |
| | 702 | | { |
| | 703 | | int sparseIndexToRemove = DenseArray[denseIndexToRemove]; |
| | 704 | | int newLength = Count - 1; |
| | 705 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 706 | |
|
| | 707 | | // Swap the entry being removed with the last entry. |
| | 708 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 709 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 710 | |
|
| | 711 | | // Clear the dense index, for debugging purposes |
| | 712 | | DenseArray[newLength] = -1; |
| | 713 | |
|
| | 714 | | // Add the sparse index to the free list. |
| | 715 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 716 | | FreeIndex = sparseIndexToRemove; |
| | 717 | |
|
| | 718 | | Count = newLength; |
| | 719 | |
|
| | 720 | | indexToSwapFrom = newLength; |
| | 721 | | } |
| | 722 | |
|
| | 723 | | /// <summary> |
| | 724 | | /// Removes the associated sparse/dense index pair from active use. |
| | 725 | | /// Out parameter used to manage parallel data arrays. |
| | 726 | | /// </summary> |
| | 727 | | /// <param name="denseIndexToRemove">The sparse index to remove.</param> |
| | 728 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 729 | | /// <param name="indexToSwapFrom"> |
| | 730 | | /// Set the data array value at this index to default after swapping with the data array |
| | 731 | | /// value at denseIndexToRemove. |
| | 732 | | /// </param> |
| | 733 | | public void RemoveUncheckedFromDenseIndex(int denseIndexToRemove, ulong* versionArray, out int indexToSwapFrom) |
| | 734 | | { |
| | 735 | | int sparseIndexToRemove = DenseArray[denseIndexToRemove]; |
| | 736 | | int newLength = Count - 1; |
| | 737 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 738 | |
|
| | 739 | | // Swap the entry being removed with the last entry. |
| | 740 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 741 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 742 | |
|
| | 743 | | // Clear the dense index, for debugging purposes |
| | 744 | | DenseArray[newLength] = -1; |
| | 745 | |
|
| | 746 | | // Add the sparse index to the free list. |
| | 747 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 748 | | versionArray[sparseIndexToRemove] += 1; |
| | 749 | | FreeIndex = sparseIndexToRemove; |
| | 750 | |
|
| | 751 | | Count = newLength; |
| | 752 | |
|
| | 753 | | indexToSwapFrom = newLength; |
| | 754 | | } |
| | 755 | |
|
| | 756 | | /// <summary> |
| | 757 | | /// Attempts to remove the associated sparse/dense index pair from active use and increments the version if |
| | 758 | | /// Out parameters used to manage parallel data arrays. |
| | 759 | | /// </summary> |
| | 760 | | /// <param name="sparseIndexToRemove">The sparse index to remove.</param> |
| | 761 | | /// <param name="version"> |
| | 762 | | /// The version number of the int used to access the sparse index. Used to guard against accessing |
| | 763 | | /// indices that have been removed and reused. |
| | 764 | | /// </param> |
| | 765 | | /// <param name="versionArray">The array containing the version number to check against.</param> |
| | 766 | | /// <param name="indexToSwapTo">Replace the data array value at this index with the data array value at indexToS |
| | 767 | | /// <param name="indexToSwapFrom"> |
| | 768 | | /// Set the data array value at this index to default after swapping with the data array |
| | 769 | | /// value at indexToSwapTo. |
| | 770 | | /// </param> |
| | 771 | | /// <returns>True if the entry was valid and thus removed.</returns> |
| | 772 | | public bool RemoveWithVersionCheck(int sparseIndexToRemove, ulong version, ulong* versionArray, out int indexToS |
| | 773 | | { |
| | 774 | | int denseIndexToRemove = SparseArray[sparseIndexToRemove]; |
| | 775 | | ulong versionAtSparseIndex = versionArray[sparseIndexToRemove]; |
| | 776 | |
|
| | 777 | | indexToSwapFrom = -1; |
| | 778 | | indexToSwapTo = -1; |
| | 779 | |
|
| | 780 | | bool succeeded = versionAtSparseIndex == version; |
| | 781 | |
|
| | 782 | | if (succeeded) |
| | 783 | | { |
| | 784 | | int newLength = Count - 1; |
| | 785 | | int sparseIndexBeingSwapped = DenseArray[newLength]; |
| | 786 | |
|
| | 787 | | // Swap the entry being removed with the last entry. |
| | 788 | | SparseArray[sparseIndexBeingSwapped] = denseIndexToRemove; |
| | 789 | | DenseArray[denseIndexToRemove] = sparseIndexBeingSwapped; |
| | 790 | |
|
| | 791 | | // Clear the dense index, for debugging purposes |
| | 792 | | DenseArray[newLength] = -1; |
| | 793 | |
|
| | 794 | | // Add the sparse index to the free list. |
| | 795 | | SparseArray[sparseIndexToRemove] = FreeIndex; |
| | 796 | | versionArray[sparseIndexToRemove] += 1; |
| | 797 | | FreeIndex = sparseIndexToRemove; |
| | 798 | |
|
| | 799 | | Count = newLength; |
| | 800 | |
|
| | 801 | | indexToSwapTo = denseIndexToRemove; |
| | 802 | | indexToSwapFrom = newLength; |
| | 803 | | } |
| | 804 | |
|
| | 805 | | return succeeded; |
| | 806 | | } |
| | 807 | |
|
| | 808 | | /// <summary> |
| | 809 | | /// Clear the dense and sparse arrays. |
| | 810 | | /// </summary> |
| | 811 | | public void Clear() |
| | 812 | | { |
| | 813 | | int capacity = Length; |
| | 814 | | for (int i = 0; i < capacity; i++) |
| | 815 | | { |
| | 816 | | DenseArray[i] = -1; |
| | 817 | | SparseArray[i] = i + 1; |
| | 818 | | } |
| | 819 | |
|
| | 820 | | FreeIndex = 0; |
| | 821 | | Count = 0; |
| | 822 | | } |
| | 823 | |
|
| | 824 | | /// <summary> |
| | 825 | | /// Clear the dense and sparse arrays. |
| | 826 | | /// </summary> |
| | 827 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 828 | | public void Clear(ulong* versionArray) |
| | 829 | | { |
| | 830 | | int capacity = Length; |
| | 831 | | for (int i = 0; i < capacity; i++) |
| | 832 | | { |
| | 833 | | DenseArray[i] = -1; |
| | 834 | | SparseArray[i] = i + 1; |
| | 835 | | versionArray[i] += 1; |
| | 836 | | } |
| | 837 | |
|
| | 838 | | FreeIndex = 0; |
| | 839 | | Count = 0; |
| | 840 | | } |
| | 841 | |
|
| | 842 | | /// <summary> |
| | 843 | | /// Clear the dense and sparse arrays and reset the version array. |
| | 844 | | /// Note: Only clear the version array if you are sure there are no outstanding dependencies on version numb |
| | 845 | | /// </summary> |
| | 846 | | /// /// |
| | 847 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 848 | | public void ClearWithVersionArrayReset(ulong* versionArray) |
| | 849 | | { |
| | 850 | | int capacity = Length; |
| | 851 | | for (int i = 0; i < capacity; i++) |
| | 852 | | { |
| | 853 | | DenseArray[i] = -1; |
| | 854 | | SparseArray[i] = i + 1; |
| | 855 | | versionArray[i] = 1; |
| | 856 | | } |
| | 857 | |
|
| | 858 | | FreeIndex = 0; |
| | 859 | | Count = 0; |
| | 860 | | } |
| | 861 | |
|
| | 862 | | /// <summary> |
| | 863 | | /// Reallocate the dense and sparse arrays with additional capacity. |
| | 864 | | /// </summary> |
| | 865 | | /// <param name="extraCapacity">How many indices to expand the dense and sparse arrays by.</param> |
| | 866 | | public void Expand(int extraCapacity) |
| | 867 | | { |
| | 868 | | int currentCapacity = Length; |
| | 869 | | int newCapacity = currentCapacity + extraCapacity; |
| | 870 | |
|
| | 871 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 872 | | --newCapacity; |
| | 873 | | newCapacity |= newCapacity >> 1; |
| | 874 | | newCapacity |= newCapacity >> 2; |
| | 875 | | newCapacity |= newCapacity >> 4; |
| | 876 | | newCapacity |= newCapacity >> 8; |
| | 877 | | newCapacity |= newCapacity >> 16; |
| | 878 | | ++newCapacity; |
| | 879 | |
|
| | 880 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 881 | |
|
| | 882 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 883 | | int* newSparseArray = (int*)newData; |
| | 884 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 885 | | { |
| | 886 | | newSparseArray[i] = i + 1; |
| | 887 | | } |
| | 888 | |
|
| | 889 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 890 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 891 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 892 | | { |
| | 893 | | newDenseArray[i] = -1; |
| | 894 | | } |
| | 895 | |
|
| | 896 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 897 | |
|
| | 898 | | Data = newData; |
| | 899 | | Length = newCapacity; |
| | 900 | | } |
| | 901 | |
|
| | 902 | | /// <summary> |
| | 903 | | /// Reallocate the dense and sparse arrays with additional capacity. |
| | 904 | | /// </summary> |
| | 905 | | /// <param name="extraCapacity">How many indices to expand the dense and sparse arrays by.</param> |
| | 906 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 907 | | public void Expand(int extraCapacity, ref ulong* versionArray) |
| | 908 | | { |
| | 909 | | int currentCapacity = Length; |
| | 910 | | int newCapacity = currentCapacity + extraCapacity; |
| | 911 | |
|
| | 912 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 913 | | --newCapacity; |
| | 914 | | newCapacity |= newCapacity >> 1; |
| | 915 | | newCapacity |= newCapacity >> 2; |
| | 916 | | newCapacity |= newCapacity >> 4; |
| | 917 | | newCapacity |= newCapacity >> 8; |
| | 918 | | newCapacity |= newCapacity >> 16; |
| | 919 | | ++newCapacity; |
| | 920 | |
|
| | 921 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 922 | |
|
| | 923 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 924 | | int* newSparseArray = (int*)newData; |
| | 925 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 926 | | { |
| | 927 | | newSparseArray[i] = i + 1; |
| | 928 | | } |
| | 929 | |
|
| | 930 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 931 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 932 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 933 | | { |
| | 934 | | newDenseArray[i] = -1; |
| | 935 | | } |
| | 936 | |
|
| | 937 | | ulong* newVersionArray = |
| | 938 | | |
| | 939 | | UnsafeUtility.MemCpy(newVersionArray, versionArray, sizeof(ulong) * currentCapacity); |
| | 940 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 941 | | { |
| | 942 | | newVersionArray[i] = 1; |
| | 943 | | } |
| | 944 | |
|
| | 945 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 946 | | Allocator.Free(versionArray, sizeof(ulong), JobsUtility.CacheLineSize, currentCapacity); |
| | 947 | | versionArray = newVersionArray; |
| | 948 | |
|
| | 949 | | Data = newData; |
| | 950 | | Length = newCapacity; |
| | 951 | | } |
| | 952 | |
|
| | 953 | | /// <summary> |
| | 954 | | /// Reallocate the dense and sparse arrays with additional capacity if there are not at least <paramref name="nu |
| | 955 | | /// </summary> |
| | 956 | | /// <param name="numberToReserve">The number of unused entries to ensure capacity for.</param> |
| | 957 | | public void Reserve(int numberToReserve) |
| | 958 | | { |
| | 959 | | int currentCapacity = Length; |
| | 960 | | int currentCount = Count; |
| | 961 | | int newCapacity = currentCount + numberToReserve; |
| | 962 | |
|
| | 963 | | if (newCapacity > currentCapacity) |
| | 964 | | { |
| | 965 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 966 | | --newCapacity; |
| | 967 | | newCapacity |= newCapacity >> 1; |
| | 968 | | newCapacity |= newCapacity >> 2; |
| | 969 | | newCapacity |= newCapacity >> 4; |
| | 970 | | newCapacity |= newCapacity >> 8; |
| | 971 | | newCapacity |= newCapacity >> 16; |
| | 972 | | ++newCapacity; |
| | 973 | |
|
| | 974 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 975 | |
|
| | 976 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 977 | | int* newSparseArray = (int*)newData; |
| | 978 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 979 | | { |
| | 980 | | newSparseArray[i] = i + 1; |
| | 981 | | } |
| | 982 | |
|
| | 983 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 984 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 985 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 986 | | { |
| | 987 | | newDenseArray[i] = -1; |
| | 988 | | } |
| | 989 | |
|
| | 990 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 991 | |
|
| | 992 | | Data = newData; |
| | 993 | | Length = newCapacity; |
| | 994 | | } |
| | 995 | | } |
| | 996 | |
|
| | 997 | | /// <summary> |
| | 998 | | /// Reallocate the dense and sparse arrays with additional capacity if there are not at least <paramref name="nu |
| | 999 | | /// </summary> |
| | 1000 | | /// <param name="numberToReserve">The number of unused entries to ensure capacity for.</param> |
| | 1001 | | /// <param name="versionArray">Enables detection of use-after-free errors when using sparse indices as reference |
| | 1002 | | public void Reserve(int numberToReserve, ref ulong* versionArray) |
| | 1003 | | { |
| | 1004 | | int currentCapacity = Length; |
| | 1005 | | int currentCount = Count; |
| | 1006 | | int newCapacity = currentCount + numberToReserve; |
| | 1007 | |
|
| | 1008 | | if (newCapacity > currentCapacity) |
| | 1009 | | { |
| | 1010 | | newCapacity = newCapacity > MinimumCapacity ? newCapacity : MinimumCapacity; |
| | 1011 | | --newCapacity; |
| | 1012 | | newCapacity |= newCapacity >> 1; |
| | 1013 | | newCapacity |= newCapacity >> 2; |
| | 1014 | | newCapacity |= newCapacity >> 4; |
| | 1015 | | newCapacity |= newCapacity >> 8; |
| | 1016 | | newCapacity |= newCapacity >> 16; |
| | 1017 | | ++newCapacity; |
| | 1018 | |
|
| | 1019 | | void* newData = Allocator.Allocate(sizeof(int), JobsUtility.CacheLineSize, newCapacity * 2); |
| | 1020 | |
|
| | 1021 | | UnsafeUtility.MemCpy(newData, Data, sizeof(int) * currentCapacity); |
| | 1022 | | int* newSparseArray = (int*)newData; |
| | 1023 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 1024 | | { |
| | 1025 | | newSparseArray[i] = i + 1; |
| | 1026 | | } |
| | 1027 | |
|
| | 1028 | | int* newDenseArray = newSparseArray + newCapacity; |
| | 1029 | | UnsafeUtility.MemCpy(newDenseArray, DenseArray, sizeof(int) * currentCapacity); |
| | 1030 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 1031 | | { |
| | 1032 | | newDenseArray[i] = -1; |
| | 1033 | | } |
| | 1034 | |
|
| | 1035 | | ulong* newVersionArray = |
| | 1036 | | |
| | 1037 | | UnsafeUtility.MemCpy(newVersionArray, versionArray, sizeof(ulong) * currentCapacity); |
| | 1038 | | for (int i = currentCapacity; i < newCapacity; i++) |
| | 1039 | | { |
| | 1040 | | newVersionArray[i] = 1; |
| | 1041 | | } |
| | 1042 | |
|
| | 1043 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, currentCapacity * 2); |
| | 1044 | | Allocator.Free(versionArray, sizeof(ulong), JobsUtility.CacheLineSize, currentCapacity); |
| | 1045 | | versionArray = newVersionArray; |
| | 1046 | |
|
| | 1047 | | Data = newData; |
| | 1048 | | Length = newCapacity; |
| | 1049 | | } |
| | 1050 | | } |
| | 1051 | |
|
| | 1052 | | /// <summary> |
| | 1053 | | /// Disposes the memory of this Sparse Set. |
| | 1054 | | /// </summary> |
| | 1055 | | public void Dispose() |
| | 1056 | | { |
| | 1057 | | if (Data != null) |
| | 1058 | | { |
| | 1059 | | Allocator.Free(Data, sizeof(int), JobsUtility.CacheLineSize, Length * 2); |
| | 1060 | | Data = null; |
| | 1061 | | Length = 0; |
| | 1062 | | Count = 0; |
| | 1063 | | FreeIndex = 0; |
| | 1064 | | Allocator = Unity.Collections.Allocator.Invalid; |
| | 1065 | | } |
| | 1066 | | } |
| | 1067 | |
|
| | 1068 | | /// <summary> |
| | 1069 | | /// Creates and schedules a job that disposes the memory of this Sparse Set. |
| | 1070 | | /// </summary> |
| | 1071 | | /// <param name="inputDeps">The dependency for the new job.</param> |
| | 1072 | | /// <returns>The handle of the new job. The job depends upon `inputDeps` and frees the memory of this Sparse Set |
| | 1073 | | [NotBurstCompatible /* This is not burst compatible because of IJob's use of a static IntPtr. Should switch to I |
| | 1074 | | public JobHandle Dispose(JobHandle inputDeps) |
| | 1075 | | { |
| | 1076 | | if (CollectionHelper.ShouldDeallocate(Allocator)) |
| | 1077 | | { |
| | 1078 | | var jobHandle = new DisposeUnsafeSparseSetJob { Ptr = Data, Capacity = Length, Allocator = |
| | 1079 | | |
| | 1080 | |
|
| | 1081 | | Data = null; |
| | 1082 | | Length = 0; |
| | 1083 | | Count = 0; |
| | 1084 | | FreeIndex = 0; |
| | 1085 | | Allocator = Unity.Collections.Allocator.Invalid; |
| | 1086 | |
|
| | 1087 | | return jobHandle; |
| | 1088 | | } |
| | 1089 | |
|
| | 1090 | | Data = null; |
| | 1091 | | Length = 0; |
| | 1092 | | Count = 0; |
| | 1093 | | FreeIndex = 0; |
| | 1094 | | Allocator = Unity.Collections.Allocator.Invalid; |
| | 1095 | |
|
| | 1096 | | return inputDeps; |
| | 1097 | | } |
| | 1098 | |
|
| | 1099 | | /// <summary> |
| | 1100 | | /// Creates and schedules a job that disposes the memory of this Sparse Set. |
| | 1101 | | /// </summary> |
| | 1102 | | /// <param name="inputDeps">The dependency for the new job.</param> |
| | 1103 | | /// <returns>The handle of the new job. The job depends upon `inputDeps` and frees the memory of this Sparse Set |
| | 1104 | | [NotBurstCompatible /* This is not burst compatible because of IJob's use of a static IntPtr. Should switch to I |
| | 1105 | | public JobHandle Dispose(JobHandle inputDeps, ref ulong* versionArray) |
| | 1106 | | { |
| | 1107 | | if (CollectionHelper.ShouldDeallocate(Allocator)) |
| | 1108 | | { |
| | 1109 | | var jobHandle = new DisposeUnsafeSparseSetAndVersionArrayJob { Ptr = Data, VersionArrayPtr = |
| | 1110 | | |
| | 1111 | |
|
| | 1112 | | Data = null; |
| | 1113 | | Length = 0; |
| | 1114 | | Count = 0; |
| | 1115 | | FreeIndex = 0; |
| | 1116 | | Allocator = Unity.Collections.Allocator.Invalid; |
| | 1117 | | versionArray = null; |
| | 1118 | |
|
| | 1119 | | return jobHandle; |
| | 1120 | | } |
| | 1121 | |
|
| | 1122 | | Data = null; |
| | 1123 | | Length = 0; |
| | 1124 | | Count = 0; |
| | 1125 | | FreeIndex = 0; |
| | 1126 | | Allocator = Unity.Collections.Allocator.Invalid; |
| | 1127 | | versionArray = null; |
| | 1128 | |
|
| | 1129 | | return inputDeps; |
| | 1130 | | } |
| | 1131 | |
|
| | 1132 | | /// <summary> |
| | 1133 | | /// Disposes the memory of the version array for this Sparse Set. |
| | 1134 | | /// </summary> |
| | 1135 | | /// <param name="versionArray">The pointer of the versionArray to dispose of.</param> |
| | 1136 | | public void DisposeVersionArray(ref ulong* versionArray) |
| | 1137 | | { |
| | 1138 | | Allocator.Free(versionArray, sizeof(ulong), JobsUtility.CacheLineSize, Length); |
| | 1139 | | versionArray = null; |
| | 1140 | | } |
| | 1141 | |
|
| | 1142 | | /// <summary> |
| | 1143 | | /// Creates and schedules a job that disposes the memory of this Sparse Set. |
| | 1144 | | /// </summary> |
| | 1145 | | /// <param name="inputDeps">The dependency for the new job.</param> |
| | 1146 | | /// <returns>The handle of the new job. The job depends upon `inputDeps` and disposes the memory of this Sparse |
| | 1147 | | [NotBurstCompatible /* This is not burst compatible because of IJob's use of a static IntPtr. Should switch to I |
| | 1148 | | public JobHandle DisposeVersionArray(JobHandle inputDeps, ref ulong* versionArray) |
| | 1149 | | { |
| | 1150 | | if (CollectionHelper.ShouldDeallocate(Allocator)) |
| | 1151 | | { |
| | 1152 | | var jobHandle = new DisposeUnsafeVersionArrayJob { Ptr = versionArray, Capacity = Length, Allocator = |
| | 1153 | | |
| | 1154 | |
|
| | 1155 | | versionArray = null; |
| | 1156 | |
|
| | 1157 | | return jobHandle; |
| | 1158 | | } |
| | 1159 | |
|
| | 1160 | | versionArray = null; |
| | 1161 | |
|
| | 1162 | | return inputDeps; |
| | 1163 | | } |
| | 1164 | | } |
| | 1165 | |
|
| | 1166 | | [BurstCompile] |
| | 1167 | | internal unsafe struct DisposeUnsafeSparseSetJob : IJob |
| | 1168 | | { |
| | 1169 | | [NativeDisableUnsafePtrRestriction] |
| | 1170 | | public void* Ptr; |
| | 1171 | | public int Capacity; |
| | 1172 | | public AllocatorManager.AllocatorHandle Allocator; |
| | 1173 | |
|
| | 1174 | | public void Execute() |
| | 1175 | | { |
| | 1176 | | Allocator.Free(Ptr, UnsafeUtility.SizeOf<int>(), JobsUtility.CacheLineSize, Capacity * 2); |
| | 1177 | | } |
| | 1178 | | } |
| | 1179 | |
|
| | 1180 | | [BurstCompile] |
| | 1181 | | internal unsafe struct DisposeUnsafeVersionArrayJob : IJob |
| | 1182 | | { |
| | 1183 | | [NativeDisableUnsafePtrRestriction] |
| | 1184 | | public void* Ptr; |
| | 1185 | | public int Capacity; |
| | 1186 | | public AllocatorManager.AllocatorHandle Allocator; |
| | 1187 | |
|
| | 1188 | | public void Execute() |
| | 1189 | | { |
| | 1190 | | Allocator.Free(Ptr, UnsafeUtility.SizeOf<ulong>(), JobsUtility.CacheLineSize, Capacity); |
| | 1191 | | } |
| | 1192 | | } |
| | 1193 | |
|
| | 1194 | | [BurstCompile] |
| | 1195 | | internal unsafe struct DisposeUnsafeSparseSetAndVersionArrayJob : IJob |
| | 1196 | | { |
| | 1197 | | [NativeDisableUnsafePtrRestriction] |
| | 1198 | | public void* Ptr; |
| | 1199 | | [NativeDisableUnsafePtrRestriction] |
| | 1200 | | public void* VersionArrayPtr; |
| | 1201 | | public int Capacity; |
| | 1202 | | public AllocatorManager.AllocatorHandle Allocator; |
| | 1203 | |
|
| | 1204 | | public void Execute() |
| 0 | 1205 | | { |
| 0 | 1206 | | Allocator.Free(Ptr, UnsafeUtility.SizeOf<int>(), JobsUtility.CacheLineSize, Capacity * 2); |
| 0 | 1207 | | Allocator.Free(VersionArrayPtr, UnsafeUtility.SizeOf<ulong>(), JobsUtility.CacheLineSize, Capacity); |
| 0 | 1208 | | } |
| | 1209 | | } |
| | 1210 | |
|
| | 1211 | | public struct SparseDenseIndexPair |
| | 1212 | | { |
| | 1213 | | public int SparseIndex; |
| | 1214 | | public int DenseIndex; |
| | 1215 | | } |
| | 1216 | |
|
| | 1217 | | internal sealed class UnsafeSparseSetDebugView |
| | 1218 | | { |
| | 1219 | | UnsafeSparseSet Data; |
| | 1220 | |
|
| | 1221 | | public UnsafeSparseSetDebugView(UnsafeSparseSet data) |
| | 1222 | | { |
| | 1223 | | Data = data; |
| | 1224 | | } |
| | 1225 | |
|
| | 1226 | | public unsafe SparseDenseIndexPair[] Items |
| | 1227 | | { |
| | 1228 | | get |
| | 1229 | | { |
| | 1230 | | SparseDenseIndexPair[] result = new SparseDenseIndexPair[Data.Count]; |
| | 1231 | |
|
| | 1232 | | for (var i = 0; i < Data.Count; ++i) |
| | 1233 | | { |
| | 1234 | | result[i] = new SparseDenseIndexPair() { DenseIndex = i, SparseIndex = Data.DenseArray[i] }; |
| | 1235 | | } |
| | 1236 | |
|
| | 1237 | | return result; |
| | 1238 | | } |
| | 1239 | | } |
| | 1240 | | } |
| | 1241 | | } |
| | 1242 | | #endif // GDX_UNSAFE_COLLECTIONS |