| | 1 | | namespace Itinero.Routing.DataStructures; |
| | 2 | |
|
| | 3 | | /// <summary> |
| | 4 | | /// Represents a tree of paths by linking their segments together. |
| | 5 | | /// </summary> |
| | 6 | | internal sealed class PathTree |
| | 7 | | { |
| | 8 | | // TODO: this entire path tree idea can be faster by storing raw structs. |
| | 9 | |
|
| | 10 | | /// <summary> |
| | 11 | | /// Creates a new path tree. |
| | 12 | | /// </summary> |
| 44 | 13 | | public PathTree() |
| 44 | 14 | | { |
| | 15 | | // TODO: perhaps we can reuse arrays somehow. |
| 44 | 16 | | _data = new uint[1024]; |
| 44 | 17 | | } |
| | 18 | |
|
| | 19 | | private uint[] _data; |
| | 20 | | private uint _pointer; |
| | 21 | |
|
| | 22 | | /// <summary> |
| | 23 | | /// Adds a new segment. |
| | 24 | | /// </summary> |
| | 25 | | /// <returns></returns> |
| | 26 | | public uint Add(uint data0, uint data1) |
| 43 | 27 | | { |
| 43 | 28 | | var id = _pointer; |
| 43 | 29 | | if (_data.Length <= _pointer + 2) |
| 0 | 30 | | { |
| 0 | 31 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 32 | | } |
| | 33 | |
|
| 43 | 34 | | _data[_pointer + 0] = data0; |
| 43 | 35 | | _data[_pointer + 1] = data1; |
| 43 | 36 | | _pointer += 2; |
| 43 | 37 | | return id; |
| 43 | 38 | | } |
| | 39 | |
|
| | 40 | | /// <summary> |
| | 41 | | /// Adds a new segment. |
| | 42 | | /// </summary> |
| | 43 | | /// <returns></returns> |
| | 44 | | public uint Add(uint data0, uint data1, uint data2) |
| 0 | 45 | | { |
| 0 | 46 | | var id = _pointer; |
| 0 | 47 | | if (_data.Length <= _pointer + 3) |
| 0 | 48 | | { |
| 0 | 49 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 50 | | } |
| | 51 | |
|
| 0 | 52 | | _data[_pointer + 0] = data0; |
| 0 | 53 | | _data[_pointer + 1] = data1; |
| 0 | 54 | | _data[_pointer + 2] = data2; |
| 0 | 55 | | _pointer += 3; |
| 0 | 56 | | return id; |
| 0 | 57 | | } |
| | 58 | |
|
| | 59 | | /// <summary> |
| | 60 | | /// Adds a new segment. |
| | 61 | | /// </summary> |
| | 62 | | /// <returns></returns> |
| | 63 | | public uint Add(uint data0, uint data1, uint data2, uint data3) |
| 0 | 64 | | { |
| 0 | 65 | | var id = _pointer; |
| 0 | 66 | | if (_data.Length <= _pointer + 4) |
| 0 | 67 | | { |
| 0 | 68 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 69 | | } |
| | 70 | |
|
| 0 | 71 | | _data[_pointer + 0] = data0; |
| 0 | 72 | | _data[_pointer + 1] = data1; |
| 0 | 73 | | _data[_pointer + 2] = data2; |
| 0 | 74 | | _data[_pointer + 3] = data3; |
| 0 | 75 | | _pointer += 4; |
| 0 | 76 | | return id; |
| 0 | 77 | | } |
| | 78 | |
|
| | 79 | | /// <summary> |
| | 80 | | /// Adds a new segment. |
| | 81 | | /// </summary> |
| | 82 | | /// <returns></returns> |
| | 83 | | public uint Add(uint data0, uint data1, uint data2, uint data3, uint data4) |
| 0 | 84 | | { |
| 0 | 85 | | var id = _pointer; |
| 0 | 86 | | if (_data.Length <= _pointer + 5) |
| 0 | 87 | | { |
| 0 | 88 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 89 | | } |
| | 90 | |
|
| 0 | 91 | | _data[_pointer + 0] = data0; |
| 0 | 92 | | _data[_pointer + 1] = data1; |
| 0 | 93 | | _data[_pointer + 2] = data2; |
| 0 | 94 | | _data[_pointer + 3] = data3; |
| 0 | 95 | | _data[_pointer + 4] = data4; |
| 0 | 96 | | _pointer += 5; |
| 0 | 97 | | return id; |
| 0 | 98 | | } |
| | 99 | |
|
| | 100 | | /// <summary> |
| | 101 | | /// Adds a new segment. |
| | 102 | | /// </summary> |
| | 103 | | /// <returns></returns> |
| | 104 | | public uint Add(uint data0, uint data1, uint data2, uint data3, uint data4, uint data5) |
| 0 | 105 | | { |
| 0 | 106 | | var id = _pointer; |
| 0 | 107 | | if (_data.Length <= _pointer + 6) |
| 0 | 108 | | { |
| 0 | 109 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 110 | | } |
| | 111 | |
|
| 0 | 112 | | _data[_pointer + 0] = data0; |
| 0 | 113 | | _data[_pointer + 1] = data1; |
| 0 | 114 | | _data[_pointer + 2] = data2; |
| 0 | 115 | | _data[_pointer + 3] = data3; |
| 0 | 116 | | _data[_pointer + 4] = data4; |
| 0 | 117 | | _data[_pointer + 5] = data5; |
| 0 | 118 | | _pointer += 6; |
| 0 | 119 | | return id; |
| 0 | 120 | | } |
| | 121 | |
|
| | 122 | | /// <summary> |
| | 123 | | /// Adds a new segment. |
| | 124 | | /// </summary> |
| | 125 | | /// <returns></returns> |
| | 126 | | public uint Add(uint data0, uint data1, uint data2, uint data3, uint data4, uint data5, uint data6) |
| 95 | 127 | | { |
| 95 | 128 | | var id = _pointer; |
| 95 | 129 | | if (_data.Length <= _pointer + 7) |
| 0 | 130 | | { |
| 0 | 131 | | System.Array.Resize(ref _data, _data.Length * 2); |
| 0 | 132 | | } |
| | 133 | |
|
| 95 | 134 | | _data[_pointer + 0] = data0; |
| 95 | 135 | | _data[_pointer + 1] = data1; |
| 95 | 136 | | _data[_pointer + 2] = data2; |
| 95 | 137 | | _data[_pointer + 3] = data3; |
| 95 | 138 | | _data[_pointer + 4] = data4; |
| 95 | 139 | | _data[_pointer + 5] = data5; |
| 95 | 140 | | _data[_pointer + 6] = data6; |
| 95 | 141 | | _pointer += 7; |
| 95 | 142 | | return id; |
| 95 | 143 | | } |
| | 144 | |
|
| | 145 | | /// <summary> |
| | 146 | | /// Gets the data at the given pointer. |
| | 147 | | /// </summary> |
| | 148 | | public void Get(uint pointer, out uint data0, out uint data1) |
| 58 | 149 | | { |
| 58 | 150 | | data0 = _data[pointer + 0]; |
| 58 | 151 | | data1 = _data[pointer + 1]; |
| 58 | 152 | | } |
| | 153 | |
|
| | 154 | | /// <summary> |
| | 155 | | /// Gets the data at the given pointer. |
| | 156 | | /// </summary> |
| | 157 | | public void Get(uint pointer, out uint data0, out uint data1, out uint data2) |
| 0 | 158 | | { |
| 0 | 159 | | data0 = _data[pointer + 0]; |
| 0 | 160 | | data1 = _data[pointer + 1]; |
| 0 | 161 | | data2 = _data[pointer + 2]; |
| 0 | 162 | | } |
| | 163 | |
|
| | 164 | | /// <summary> |
| | 165 | | /// Gets the data at the given pointer. |
| | 166 | | /// </summary> |
| | 167 | | public void Get(uint pointer, out uint data0, out uint data1, out uint data2, |
| | 168 | | out uint data3) |
| 0 | 169 | | { |
| 0 | 170 | | data0 = _data[pointer + 0]; |
| 0 | 171 | | data1 = _data[pointer + 1]; |
| 0 | 172 | | data2 = _data[pointer + 2]; |
| 0 | 173 | | data3 = _data[pointer + 3]; |
| 0 | 174 | | } |
| | 175 | |
|
| | 176 | | /// <summary> |
| | 177 | | /// Gets the data at the given pointer. |
| | 178 | | /// </summary> |
| | 179 | | public void Get(uint pointer, out uint data0, out uint data1, out uint data2, |
| | 180 | | out uint data3, out uint data4) |
| 0 | 181 | | { |
| 0 | 182 | | data0 = _data[pointer + 0]; |
| 0 | 183 | | data1 = _data[pointer + 1]; |
| 0 | 184 | | data2 = _data[pointer + 2]; |
| 0 | 185 | | data3 = _data[pointer + 3]; |
| 0 | 186 | | data4 = _data[pointer + 4]; |
| 0 | 187 | | } |
| | 188 | |
|
| | 189 | | /// <summary> |
| | 190 | | /// Gets the data at the given pointer. |
| | 191 | | /// </summary> |
| | 192 | | public void Get(uint pointer, out uint data0, out uint data1, out uint data2, |
| | 193 | | out uint data3, out uint data4, out uint data5) |
| 0 | 194 | | { |
| 0 | 195 | | data0 = _data[pointer + 0]; |
| 0 | 196 | | data1 = _data[pointer + 1]; |
| 0 | 197 | | data2 = _data[pointer + 2]; |
| 0 | 198 | | data3 = _data[pointer + 3]; |
| 0 | 199 | | data4 = _data[pointer + 4]; |
| 0 | 200 | | data5 = _data[pointer + 5]; |
| 0 | 201 | | } |
| | 202 | |
|
| | 203 | | /// <summary> |
| | 204 | | /// Gets the data at the given pointer. |
| | 205 | | /// </summary> |
| | 206 | | public void Get(uint pointer, out uint data0, out uint data1, out uint data2, |
| | 207 | | out uint data3, out uint data4, out uint data5, out uint data6) |
| 176 | 208 | | { |
| 176 | 209 | | data0 = _data[pointer + 0]; |
| 176 | 210 | | data1 = _data[pointer + 1]; |
| 176 | 211 | | data2 = _data[pointer + 2]; |
| 176 | 212 | | data3 = _data[pointer + 3]; |
| 176 | 213 | | data4 = _data[pointer + 4]; |
| 176 | 214 | | data5 = _data[pointer + 5]; |
| 176 | 215 | | data6 = _data[pointer + 6]; |
| 176 | 216 | | } |
| | 217 | |
|
| | 218 | | /// <summary> |
| | 219 | | /// Clears all data. |
| | 220 | | /// </summary> |
| | 221 | | public void Clear() |
| 44 | 222 | | { |
| 44 | 223 | | _pointer = 0; |
| 44 | 224 | | } |
| | 225 | | } |