| | | 1 | | using System.IO; |
| | | 2 | | |
| | | 3 | | namespace Itinero.IO.Osm.Tiles; |
| | | 4 | | |
| | | 5 | | internal static class StreamExtensions |
| | | 6 | | { |
| | | 7 | | private const byte Mask = 128 - 1; |
| | | 8 | | |
| | | 9 | | public static void WriteVarUInt32Nullable(this Stream stream, uint? value) |
| | 0 | 10 | | { |
| | 0 | 11 | | if (value == null) |
| | 0 | 12 | | { |
| | 0 | 13 | | stream.WriteVarUInt32(0); |
| | 0 | 14 | | } |
| | | 15 | | else |
| | 0 | 16 | | { |
| | 0 | 17 | | stream.WriteVarUInt32(value.Value + 1); |
| | 0 | 18 | | } |
| | 0 | 19 | | } |
| | | 20 | | |
| | | 21 | | public static void WriteVarUInt32(this Stream stream, uint value) |
| | 4 | 22 | | { |
| | 4 | 23 | | var d0 = (byte)(value & Mask); |
| | 4 | 24 | | value >>= 7; |
| | 4 | 25 | | if (value == 0) |
| | 0 | 26 | | { |
| | 0 | 27 | | stream.WriteByte(d0); |
| | 0 | 28 | | return; |
| | | 29 | | } |
| | | 30 | | |
| | 4 | 31 | | d0 += 128; |
| | 4 | 32 | | var d1 = (byte)(value & Mask); |
| | 4 | 33 | | value >>= 7; |
| | 4 | 34 | | if (value == 0) |
| | 2 | 35 | | { |
| | 2 | 36 | | stream.WriteByte(d0); |
| | 2 | 37 | | stream.WriteByte(d1); |
| | 2 | 38 | | return; |
| | | 39 | | } |
| | | 40 | | |
| | 2 | 41 | | d1 += 128; |
| | 2 | 42 | | var d2 = (byte)(value & Mask); |
| | 2 | 43 | | value >>= 7; |
| | 2 | 44 | | if (value == 0) |
| | 2 | 45 | | { |
| | 2 | 46 | | stream.WriteByte(d0); |
| | 2 | 47 | | stream.WriteByte(d1); |
| | 2 | 48 | | stream.WriteByte(d2); |
| | 2 | 49 | | return; |
| | | 50 | | } |
| | | 51 | | |
| | 0 | 52 | | d2 += 128; |
| | 0 | 53 | | var d3 = (byte)(value & Mask); |
| | 0 | 54 | | value >>= 7; |
| | 0 | 55 | | if (value == 0) |
| | 0 | 56 | | { |
| | 0 | 57 | | stream.WriteByte(d0); |
| | 0 | 58 | | stream.WriteByte(d1); |
| | 0 | 59 | | stream.WriteByte(d2); |
| | 0 | 60 | | stream.WriteByte(d3); |
| | 0 | 61 | | return; |
| | | 62 | | } |
| | | 63 | | |
| | 0 | 64 | | d3 += 128; |
| | 0 | 65 | | var d4 = (byte)(value & Mask); |
| | 0 | 66 | | stream.WriteByte(d0); |
| | 0 | 67 | | stream.WriteByte(d1); |
| | 0 | 68 | | stream.WriteByte(d2); |
| | 0 | 69 | | stream.WriteByte(d3); |
| | 0 | 70 | | stream.WriteByte(d4); |
| | 0 | 71 | | return; |
| | 4 | 72 | | } |
| | | 73 | | |
| | | 74 | | |
| | | 75 | | public static void WriteVarUInt64Nullable(this Stream stream, ulong? value) |
| | 0 | 76 | | { |
| | 0 | 77 | | if (value == null) |
| | 0 | 78 | | { |
| | 0 | 79 | | stream.WriteVarUInt64(0); |
| | 0 | 80 | | } |
| | | 81 | | else |
| | 0 | 82 | | { |
| | 0 | 83 | | stream.WriteVarUInt64(value.Value + 1); |
| | 0 | 84 | | } |
| | 0 | 85 | | } |
| | | 86 | | |
| | | 87 | | public static void WriteVarUInt64(this Stream stream, ulong value) |
| | 3 | 88 | | { |
| | 3 | 89 | | var d0 = (byte)(value & Mask); |
| | 3 | 90 | | value >>= 7; |
| | 3 | 91 | | if (value == 0) |
| | 1 | 92 | | { |
| | 1 | 93 | | stream.WriteByte(d0); |
| | 1 | 94 | | return; |
| | | 95 | | } |
| | | 96 | | |
| | 2 | 97 | | d0 += 128; |
| | 2 | 98 | | var d1 = (byte)(value & Mask); |
| | 2 | 99 | | value >>= 7; |
| | 2 | 100 | | if (value == 0) |
| | 0 | 101 | | { |
| | 0 | 102 | | stream.WriteByte(d0); |
| | 0 | 103 | | stream.WriteByte(d1); |
| | 0 | 104 | | return; |
| | | 105 | | } |
| | | 106 | | |
| | 2 | 107 | | d1 += 128; |
| | 2 | 108 | | var d2 = (byte)(value & Mask); |
| | 2 | 109 | | value >>= 7; |
| | 2 | 110 | | if (value == 0) |
| | 2 | 111 | | { |
| | 2 | 112 | | stream.WriteByte(d0); |
| | 2 | 113 | | stream.WriteByte(d1); |
| | 2 | 114 | | stream.WriteByte(d2); |
| | 2 | 115 | | return; |
| | | 116 | | } |
| | | 117 | | |
| | 0 | 118 | | d2 += 128; |
| | 0 | 119 | | var d3 = (byte)(value & Mask); |
| | 0 | 120 | | value >>= 7; |
| | 0 | 121 | | if (value == 0) |
| | 0 | 122 | | { |
| | 0 | 123 | | stream.WriteByte(d0); |
| | 0 | 124 | | stream.WriteByte(d1); |
| | 0 | 125 | | stream.WriteByte(d2); |
| | 0 | 126 | | stream.WriteByte(d3); |
| | 0 | 127 | | return; |
| | | 128 | | } |
| | | 129 | | |
| | 0 | 130 | | d3 += 128; |
| | 0 | 131 | | var d4 = (byte)(value & Mask); |
| | 0 | 132 | | value >>= 7; |
| | 0 | 133 | | if (value == 0) |
| | 0 | 134 | | { |
| | 0 | 135 | | stream.WriteByte(d0); |
| | 0 | 136 | | stream.WriteByte(d1); |
| | 0 | 137 | | stream.WriteByte(d2); |
| | 0 | 138 | | stream.WriteByte(d3); |
| | 0 | 139 | | stream.WriteByte(d4); |
| | 0 | 140 | | return; |
| | | 141 | | } |
| | | 142 | | |
| | 0 | 143 | | d4 += 128; |
| | 0 | 144 | | var d5 = (byte)(value & Mask); |
| | 0 | 145 | | value >>= 7; |
| | 0 | 146 | | if (value == 0) |
| | 0 | 147 | | { |
| | 0 | 148 | | stream.WriteByte(d0); |
| | 0 | 149 | | stream.WriteByte(d1); |
| | 0 | 150 | | stream.WriteByte(d2); |
| | 0 | 151 | | stream.WriteByte(d3); |
| | 0 | 152 | | stream.WriteByte(d4); |
| | 0 | 153 | | stream.WriteByte(d5); |
| | 0 | 154 | | return; |
| | | 155 | | } |
| | | 156 | | |
| | 0 | 157 | | d5 += 128; |
| | 0 | 158 | | var d6 = (byte)(value & Mask); |
| | 0 | 159 | | value >>= 7; |
| | 0 | 160 | | if (value == 0) |
| | 0 | 161 | | { |
| | 0 | 162 | | stream.WriteByte(d0); |
| | 0 | 163 | | stream.WriteByte(d1); |
| | 0 | 164 | | stream.WriteByte(d2); |
| | 0 | 165 | | stream.WriteByte(d3); |
| | 0 | 166 | | stream.WriteByte(d4); |
| | 0 | 167 | | stream.WriteByte(d5); |
| | 0 | 168 | | stream.WriteByte(d6); |
| | 0 | 169 | | return; |
| | | 170 | | } |
| | | 171 | | |
| | 0 | 172 | | d6 += 128; |
| | 0 | 173 | | var d7 = (byte)(value & Mask); |
| | 0 | 174 | | value >>= 7; |
| | 0 | 175 | | if (value == 0) |
| | 0 | 176 | | { |
| | 0 | 177 | | stream.WriteByte(d0); |
| | 0 | 178 | | stream.WriteByte(d1); |
| | 0 | 179 | | stream.WriteByte(d2); |
| | 0 | 180 | | stream.WriteByte(d3); |
| | 0 | 181 | | stream.WriteByte(d4); |
| | 0 | 182 | | stream.WriteByte(d5); |
| | 0 | 183 | | stream.WriteByte(d6); |
| | 0 | 184 | | stream.WriteByte(d7); |
| | 0 | 185 | | return; |
| | | 186 | | } |
| | | 187 | | |
| | 0 | 188 | | d7 += 128; |
| | 0 | 189 | | var d8 = (byte)(value & Mask); |
| | 0 | 190 | | value >>= 7; |
| | 0 | 191 | | if (value == 0) |
| | 0 | 192 | | { |
| | 0 | 193 | | stream.WriteByte(d0); |
| | 0 | 194 | | stream.WriteByte(d1); |
| | 0 | 195 | | stream.WriteByte(d2); |
| | 0 | 196 | | stream.WriteByte(d3); |
| | 0 | 197 | | stream.WriteByte(d4); |
| | 0 | 198 | | stream.WriteByte(d5); |
| | 0 | 199 | | stream.WriteByte(d6); |
| | 0 | 200 | | stream.WriteByte(d7); |
| | 0 | 201 | | stream.WriteByte(d8); |
| | 0 | 202 | | return; |
| | | 203 | | } |
| | | 204 | | |
| | 0 | 205 | | d8 += 128; |
| | 0 | 206 | | var d9 = (byte)(value & Mask); |
| | 0 | 207 | | stream.WriteByte(d0); |
| | 0 | 208 | | stream.WriteByte(d1); |
| | 0 | 209 | | stream.WriteByte(d2); |
| | 0 | 210 | | stream.WriteByte(d3); |
| | 0 | 211 | | stream.WriteByte(d4); |
| | 0 | 212 | | stream.WriteByte(d5); |
| | 0 | 213 | | stream.WriteByte(d6); |
| | 0 | 214 | | stream.WriteByte(d7); |
| | 0 | 215 | | stream.WriteByte(d8); |
| | 0 | 216 | | stream.WriteByte(d9); |
| | 0 | 217 | | return; |
| | 3 | 218 | | } |
| | | 219 | | |
| | | 220 | | public static uint? ReadVarUInt32Nullable(this Stream stream) |
| | 0 | 221 | | { |
| | 0 | 222 | | var value = stream.ReadVarUInt32(); |
| | 0 | 223 | | if (value == 0) |
| | 0 | 224 | | { |
| | 0 | 225 | | return null; |
| | | 226 | | } |
| | | 227 | | |
| | 0 | 228 | | return value - 1; |
| | 0 | 229 | | } |
| | | 230 | | |
| | | 231 | | public static uint ReadVarUInt32(this Stream stream) |
| | 4 | 232 | | { |
| | 4 | 233 | | var value = 0U; |
| | 4 | 234 | | var d = stream.ReadByte(); |
| | 4 | 235 | | if (d < 128) |
| | 0 | 236 | | { |
| | 0 | 237 | | value = (uint)d; |
| | 0 | 238 | | return value; |
| | | 239 | | } |
| | | 240 | | |
| | 4 | 241 | | value = (uint)d - 128; |
| | 4 | 242 | | d = stream.ReadByte(); |
| | 4 | 243 | | if (d < 128) |
| | 2 | 244 | | { |
| | 2 | 245 | | value += (uint)d << 7; |
| | 2 | 246 | | return value; |
| | | 247 | | } |
| | | 248 | | |
| | 2 | 249 | | d -= 128; |
| | 2 | 250 | | value += (uint)d << 7; |
| | 2 | 251 | | d = stream.ReadByte(); |
| | 2 | 252 | | if (d < 128) |
| | 2 | 253 | | { |
| | 2 | 254 | | value += (uint)d << 14; |
| | 2 | 255 | | return value; |
| | | 256 | | } |
| | | 257 | | |
| | 0 | 258 | | d -= 128; |
| | 0 | 259 | | value += (uint)d << 14; |
| | 0 | 260 | | d = stream.ReadByte(); |
| | 0 | 261 | | if (d < 128) |
| | 0 | 262 | | { |
| | 0 | 263 | | value += (uint)d << 21; |
| | 0 | 264 | | return value; |
| | | 265 | | } |
| | | 266 | | |
| | 0 | 267 | | d -= 128; |
| | 0 | 268 | | value += (uint)d << 21; |
| | 0 | 269 | | d = stream.ReadByte(); |
| | 0 | 270 | | value += (uint)d << 28; |
| | 0 | 271 | | return value; |
| | 4 | 272 | | } |
| | | 273 | | |
| | | 274 | | public static ulong? ReadVarUInt64Nullable(this Stream stream) |
| | 0 | 275 | | { |
| | 0 | 276 | | var value = stream.ReadVarUInt64(); |
| | 0 | 277 | | if (value == 0) |
| | 0 | 278 | | { |
| | 0 | 279 | | return null; |
| | | 280 | | } |
| | | 281 | | |
| | 0 | 282 | | return value - 1; |
| | 0 | 283 | | } |
| | | 284 | | |
| | | 285 | | public static ulong ReadVarUInt64(this Stream stream) |
| | 3 | 286 | | { |
| | 3 | 287 | | var value = 0UL; |
| | 3 | 288 | | var d = stream.ReadByte(); |
| | 3 | 289 | | if (d < 128) |
| | 1 | 290 | | { |
| | 1 | 291 | | value = (ulong)d; |
| | 1 | 292 | | return value; |
| | | 293 | | } |
| | | 294 | | |
| | 2 | 295 | | value = (ulong)d - 128; |
| | 2 | 296 | | d = stream.ReadByte(); |
| | 2 | 297 | | ; |
| | 2 | 298 | | if (d < 128) |
| | 0 | 299 | | { |
| | 0 | 300 | | value += (uint)d << 7; |
| | 0 | 301 | | return value; |
| | | 302 | | } |
| | | 303 | | |
| | 2 | 304 | | d -= 128; |
| | 2 | 305 | | value += (ulong)d << 7; |
| | 2 | 306 | | d = stream.ReadByte(); |
| | 2 | 307 | | ; |
| | 2 | 308 | | if (d < 128) |
| | 2 | 309 | | { |
| | 2 | 310 | | value += (uint)d << 14; |
| | 2 | 311 | | return value; |
| | | 312 | | } |
| | | 313 | | |
| | 0 | 314 | | d -= 128; |
| | 0 | 315 | | value += (ulong)d << 14; |
| | 0 | 316 | | d = stream.ReadByte(); |
| | 0 | 317 | | ; |
| | 0 | 318 | | if (d < 128) |
| | 0 | 319 | | { |
| | 0 | 320 | | value += (ulong)d << 21; |
| | 0 | 321 | | return value; |
| | | 322 | | } |
| | | 323 | | |
| | 0 | 324 | | d -= 128; |
| | 0 | 325 | | value += (ulong)d << 21; |
| | 0 | 326 | | d = stream.ReadByte(); |
| | 0 | 327 | | ; |
| | 0 | 328 | | if (d < 128) |
| | 0 | 329 | | { |
| | 0 | 330 | | value += (ulong)d << 28; |
| | 0 | 331 | | return value; |
| | | 332 | | } |
| | | 333 | | |
| | 0 | 334 | | d -= 128; |
| | 0 | 335 | | value += (ulong)d << 28; |
| | 0 | 336 | | d = stream.ReadByte(); |
| | 0 | 337 | | ; |
| | 0 | 338 | | if (d < 128) |
| | 0 | 339 | | { |
| | 0 | 340 | | value += (ulong)d << 35; |
| | 0 | 341 | | return value; |
| | | 342 | | } |
| | | 343 | | |
| | 0 | 344 | | d -= 128; |
| | 0 | 345 | | value += (ulong)d << 35; |
| | 0 | 346 | | d = stream.ReadByte(); |
| | 0 | 347 | | ; |
| | 0 | 348 | | if (d < 128) |
| | 0 | 349 | | { |
| | 0 | 350 | | value += (ulong)d << 42; |
| | 0 | 351 | | return value; |
| | | 352 | | } |
| | | 353 | | |
| | 0 | 354 | | d -= 128; |
| | 0 | 355 | | value += (ulong)d << 42; |
| | 0 | 356 | | d = stream.ReadByte(); |
| | 0 | 357 | | ; |
| | 0 | 358 | | if (d < 128) |
| | 0 | 359 | | { |
| | 0 | 360 | | value += (ulong)d << 49; |
| | 0 | 361 | | return value; |
| | | 362 | | } |
| | | 363 | | |
| | 0 | 364 | | d -= 128; |
| | 0 | 365 | | value += (ulong)d << 49; |
| | 0 | 366 | | d = stream.ReadByte(); |
| | 0 | 367 | | ; |
| | 0 | 368 | | if (d < 128) |
| | 0 | 369 | | { |
| | 0 | 370 | | value += (ulong)d << 56; |
| | 0 | 371 | | return value; |
| | | 372 | | } |
| | | 373 | | |
| | 0 | 374 | | d -= 128; |
| | 0 | 375 | | value += (ulong)d << 56; |
| | 0 | 376 | | d = stream.ReadByte(); |
| | 0 | 377 | | ; |
| | 0 | 378 | | value += (ulong)d << 63; |
| | 0 | 379 | | return value; |
| | 3 | 380 | | } |
| | | 381 | | |
| | | 382 | | private static ulong ToUnsigned(long value) |
| | 3 | 383 | | { |
| | 3 | 384 | | var unsigned = (ulong)value; |
| | 3 | 385 | | if (value < 0) |
| | 0 | 386 | | { |
| | 0 | 387 | | unsigned = (ulong)-value; |
| | 0 | 388 | | } |
| | | 389 | | |
| | 3 | 390 | | unsigned <<= 1; |
| | 3 | 391 | | if (value < 0) |
| | 0 | 392 | | { |
| | 0 | 393 | | unsigned += 1; |
| | 0 | 394 | | } |
| | | 395 | | |
| | 3 | 396 | | return unsigned; |
| | 3 | 397 | | } |
| | | 398 | | |
| | | 399 | | private static ulong? ToUnsigned(long? valueNullable) |
| | 0 | 400 | | { |
| | 0 | 401 | | if (valueNullable == null) |
| | 0 | 402 | | { |
| | 0 | 403 | | return null; |
| | | 404 | | } |
| | | 405 | | |
| | 0 | 406 | | var value = valueNullable.Value; |
| | 0 | 407 | | var unsigned = (ulong)value; |
| | 0 | 408 | | if (value < 0) |
| | 0 | 409 | | { |
| | 0 | 410 | | unsigned = (ulong)-value; |
| | 0 | 411 | | } |
| | | 412 | | |
| | 0 | 413 | | unsigned <<= 1; |
| | 0 | 414 | | if (value < 0) |
| | 0 | 415 | | { |
| | 0 | 416 | | unsigned += 1; |
| | 0 | 417 | | } |
| | | 418 | | |
| | 0 | 419 | | return unsigned; |
| | 0 | 420 | | } |
| | | 421 | | |
| | | 422 | | private static uint ToUnsigned(int value) |
| | 0 | 423 | | { |
| | 0 | 424 | | var unsigned = (uint)value; |
| | 0 | 425 | | if (value < 0) |
| | 0 | 426 | | { |
| | 0 | 427 | | unsigned = (uint)-value; |
| | 0 | 428 | | } |
| | | 429 | | |
| | 0 | 430 | | unsigned <<= 1; |
| | 0 | 431 | | if (value < 0) |
| | 0 | 432 | | { |
| | 0 | 433 | | unsigned += 1; |
| | 0 | 434 | | } |
| | | 435 | | |
| | 0 | 436 | | return unsigned; |
| | 0 | 437 | | } |
| | | 438 | | |
| | | 439 | | private static uint? ToUnsigned(int? valueNullable) |
| | 0 | 440 | | { |
| | 0 | 441 | | if (valueNullable == null) |
| | 0 | 442 | | { |
| | 0 | 443 | | return null; |
| | | 444 | | } |
| | | 445 | | |
| | 0 | 446 | | var value = valueNullable.Value; |
| | 0 | 447 | | var unsigned = (uint)value; |
| | 0 | 448 | | if (value < 0) |
| | 0 | 449 | | { |
| | 0 | 450 | | unsigned = (uint)-value; |
| | 0 | 451 | | } |
| | | 452 | | |
| | 0 | 453 | | unsigned <<= 1; |
| | 0 | 454 | | if (value < 0) |
| | 0 | 455 | | { |
| | 0 | 456 | | unsigned += 1; |
| | 0 | 457 | | } |
| | | 458 | | |
| | 0 | 459 | | return unsigned; |
| | 0 | 460 | | } |
| | | 461 | | |
| | | 462 | | private static long FromUnsigned(ulong unsigned) |
| | 3 | 463 | | { |
| | 3 | 464 | | var sign = unsigned & (uint)1; |
| | | 465 | | |
| | 3 | 466 | | var value = (long)(unsigned >> 1); |
| | 3 | 467 | | if (sign == 1) |
| | 0 | 468 | | { |
| | 0 | 469 | | value = -value; |
| | 0 | 470 | | } |
| | | 471 | | |
| | 3 | 472 | | return value; |
| | 3 | 473 | | } |
| | | 474 | | |
| | | 475 | | private static long? FromUnsigned(ulong? unsignedNullable) |
| | 0 | 476 | | { |
| | 0 | 477 | | if (unsignedNullable == null) |
| | 0 | 478 | | { |
| | 0 | 479 | | return null; |
| | | 480 | | } |
| | | 481 | | |
| | 0 | 482 | | var unsigned = unsignedNullable.Value; |
| | 0 | 483 | | var sign = unsigned & (uint)1; |
| | | 484 | | |
| | 0 | 485 | | var value = (long)(unsigned >> 1); |
| | 0 | 486 | | if (sign == 1) |
| | 0 | 487 | | { |
| | 0 | 488 | | value = -value; |
| | 0 | 489 | | } |
| | | 490 | | |
| | 0 | 491 | | return value; |
| | 0 | 492 | | } |
| | | 493 | | |
| | | 494 | | private static int FromUnsigned(uint unsigned) |
| | 0 | 495 | | { |
| | 0 | 496 | | var sign = unsigned & (uint)1; |
| | | 497 | | |
| | 0 | 498 | | var value = (int)(unsigned >> 1); |
| | 0 | 499 | | if (sign == 1) |
| | 0 | 500 | | { |
| | 0 | 501 | | value = -value; |
| | 0 | 502 | | } |
| | | 503 | | |
| | 0 | 504 | | return value; |
| | 0 | 505 | | } |
| | | 506 | | |
| | | 507 | | private static int? FromUnsigned(uint? unsignedNullable) |
| | 0 | 508 | | { |
| | 0 | 509 | | if (unsignedNullable == null) |
| | 0 | 510 | | { |
| | 0 | 511 | | return null; |
| | | 512 | | } |
| | | 513 | | |
| | 0 | 514 | | var unsigned = unsignedNullable.Value; |
| | 0 | 515 | | var sign = unsigned & (uint)1; |
| | | 516 | | |
| | 0 | 517 | | var value = (int)(unsigned >> 1); |
| | 0 | 518 | | if (sign == 1) |
| | 0 | 519 | | { |
| | 0 | 520 | | value = -value; |
| | 0 | 521 | | } |
| | | 522 | | |
| | 0 | 523 | | return value; |
| | 0 | 524 | | } |
| | | 525 | | |
| | | 526 | | public static void WriteVarInt32Nullable(this Stream data, int? value) |
| | 0 | 527 | | { |
| | 0 | 528 | | data.WriteVarUInt32Nullable(ToUnsigned(value)); |
| | 0 | 529 | | } |
| | | 530 | | |
| | | 531 | | public static void WriteVarInt32(this Stream data, int value) |
| | 0 | 532 | | { |
| | 0 | 533 | | data.WriteVarUInt32(ToUnsigned(value)); |
| | 0 | 534 | | } |
| | | 535 | | |
| | | 536 | | public static int? ReadVarInt32Nullable(this Stream data) |
| | 0 | 537 | | { |
| | 0 | 538 | | return FromUnsigned(data.ReadVarUInt32Nullable()); |
| | 0 | 539 | | } |
| | | 540 | | |
| | | 541 | | public static int ReadVarInt32(this Stream data) |
| | 0 | 542 | | { |
| | 0 | 543 | | return FromUnsigned(data.ReadVarUInt32()); |
| | 0 | 544 | | } |
| | | 545 | | |
| | | 546 | | public static void WriteVarInt64Nullable(this Stream data, long? value) |
| | 0 | 547 | | { |
| | 0 | 548 | | data.WriteVarUInt64Nullable(ToUnsigned(value)); |
| | 0 | 549 | | } |
| | | 550 | | |
| | | 551 | | public static void WriteVarInt64(this Stream data, long value) |
| | 3 | 552 | | { |
| | 3 | 553 | | data.WriteVarUInt64(ToUnsigned(value)); |
| | 3 | 554 | | } |
| | | 555 | | |
| | | 556 | | public static long? ReadVarInt64Nullable(this Stream data) |
| | 0 | 557 | | { |
| | 0 | 558 | | return FromUnsigned(data.ReadVarUInt64Nullable()); |
| | 0 | 559 | | } |
| | | 560 | | |
| | | 561 | | public static long ReadVarInt64(this Stream data) |
| | 3 | 562 | | { |
| | 3 | 563 | | return FromUnsigned(data.ReadVarUInt64()); |
| | 3 | 564 | | } |
| | | 565 | | |
| | | 566 | | public static void WriteInt64(this Stream stream, long value) |
| | 0 | 567 | | { |
| | 0 | 568 | | for (var b = 0; b < 8; b++) |
| | 0 | 569 | | { |
| | 0 | 570 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| | 0 | 571 | | value >>= 8; |
| | 0 | 572 | | } |
| | 0 | 573 | | } |
| | | 574 | | |
| | | 575 | | public static long ReadInt64(this Stream stream) |
| | 1 | 576 | | { |
| | 1 | 577 | | var value = 0L; |
| | 18 | 578 | | for (var b = 0; b < 8; b++) |
| | 8 | 579 | | { |
| | 8 | 580 | | value += (long)stream.ReadByte() << (b * 8); |
| | 8 | 581 | | } |
| | | 582 | | |
| | 1 | 583 | | return value; |
| | 1 | 584 | | } |
| | | 585 | | |
| | | 586 | | public static void WriteUInt32(this Stream stream, uint value) |
| | 0 | 587 | | { |
| | 0 | 588 | | for (var b = 0; b < 4; b++) |
| | 0 | 589 | | { |
| | 0 | 590 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| | 0 | 591 | | value >>= 8; |
| | 0 | 592 | | } |
| | 0 | 593 | | } |
| | | 594 | | |
| | | 595 | | public static uint ReadUInt32(this Stream stream) |
| | 0 | 596 | | { |
| | 0 | 597 | | var value = 0U; |
| | 0 | 598 | | for (var b = 0; b < 4; b++) |
| | 0 | 599 | | { |
| | 0 | 600 | | value += (uint)stream.ReadByte() << (b * 8); |
| | 0 | 601 | | } |
| | | 602 | | |
| | 0 | 603 | | return value; |
| | 0 | 604 | | } |
| | | 605 | | |
| | | 606 | | public static void WriteUInt64(this Stream stream, ulong value) |
| | 0 | 607 | | { |
| | 0 | 608 | | for (var b = 0; b < 8; b++) |
| | 0 | 609 | | { |
| | 0 | 610 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| | 0 | 611 | | value >>= 8; |
| | 0 | 612 | | } |
| | 0 | 613 | | } |
| | | 614 | | |
| | | 615 | | public static ulong ReadUInt64(this Stream stream) |
| | 0 | 616 | | { |
| | 0 | 617 | | var value = 0UL; |
| | 0 | 618 | | for (var b = 0; b < 8; b++) |
| | 0 | 619 | | { |
| | 0 | 620 | | value += (ulong)stream.ReadByte() << (b * 8); |
| | 0 | 621 | | } |
| | | 622 | | |
| | 0 | 623 | | return value; |
| | 0 | 624 | | } |
| | | 625 | | |
| | | 626 | | public static void WriteInt32(this Stream stream, int value) |
| | 0 | 627 | | { |
| | 0 | 628 | | for (var b = 0; b < 4; b++) |
| | 0 | 629 | | { |
| | 0 | 630 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| | 0 | 631 | | value >>= 8; |
| | 0 | 632 | | } |
| | 0 | 633 | | } |
| | | 634 | | |
| | | 635 | | public static int ReadInt32(this Stream stream) |
| | 0 | 636 | | { |
| | 0 | 637 | | var value = 0; |
| | 0 | 638 | | for (var b = 0; b < 4; b++) |
| | 0 | 639 | | { |
| | 0 | 640 | | value += stream.ReadByte() << (b * 8); |
| | 0 | 641 | | } |
| | | 642 | | |
| | 0 | 643 | | return value; |
| | 0 | 644 | | } |
| | | 645 | | |
| | | 646 | | internal static long WriteWithSize(this Stream stream, string value) |
| | 1 | 647 | | { |
| | 1 | 648 | | var bytes = System.Text.Encoding.Unicode.GetBytes(value); |
| | 1 | 649 | | return stream.WriteWithSize(bytes); |
| | 1 | 650 | | } |
| | | 651 | | |
| | | 652 | | internal static long WriteWithSize(this Stream stream, byte[] value) |
| | 1 | 653 | | { |
| | 1 | 654 | | stream.Write(System.BitConverter.GetBytes((long)value.Length), 0, 8); |
| | 1 | 655 | | stream.Write(value, 0, value.Length); |
| | 1 | 656 | | return value.Length + 8; |
| | 1 | 657 | | } |
| | | 658 | | |
| | | 659 | | internal static string ReadWithSizeString(this Stream stream) |
| | 1 | 660 | | { |
| | 1 | 661 | | var size = stream.ReadInt64(); |
| | 1 | 662 | | var data = new byte[size]; |
| | 1 | 663 | | stream.Read(data, 0, (int)size); |
| | | 664 | | |
| | 1 | 665 | | return System.Text.Encoding.Unicode.GetString(data, 0, data.Length); |
| | 1 | 666 | | } |
| | | 667 | | } |