diff options
author | Robert Adams | 2013-11-01 11:35:31 -0700 |
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committer | Robert Adams | 2013-11-01 11:35:31 -0700 |
commit | ff5885ab234bc9a7efda49eea0e2200711c4933c (patch) | |
tree | 21ef180072b30891700f139792d34ca9b2c7e0d6 /OpenSim/Framework/TerrainData.cs | |
parent | varregion: fix problem of X/Y dimensions swapped and incorrect terrain (diff) | |
download | opensim-SC_OLD-ff5885ab234bc9a7efda49eea0e2200711c4933c.zip opensim-SC_OLD-ff5885ab234bc9a7efda49eea0e2200711c4933c.tar.gz opensim-SC_OLD-ff5885ab234bc9a7efda49eea0e2200711c4933c.tar.bz2 opensim-SC_OLD-ff5885ab234bc9a7efda49eea0e2200711c4933c.tar.xz |
varregion: push TerrainData implementation up and down the database storage stack.
Implement both LoadTerrain and StoreTerrain for all DBs.
Move all database blob serialization/deserialization into TerrainData.
Diffstat (limited to '')
-rw-r--r-- | OpenSim/Framework/TerrainData.cs | 193 |
1 files changed, 169 insertions, 24 deletions
diff --git a/OpenSim/Framework/TerrainData.cs b/OpenSim/Framework/TerrainData.cs index d7f1655..58b203f 100644 --- a/OpenSim/Framework/TerrainData.cs +++ b/OpenSim/Framework/TerrainData.cs | |||
@@ -43,6 +43,9 @@ namespace OpenSim.Framework | |||
43 | public int SizeY { get; protected set; } | 43 | public int SizeY { get; protected set; } |
44 | public int SizeZ { get; protected set; } | 44 | public int SizeZ { get; protected set; } |
45 | 45 | ||
46 | // A height used when the user doesn't specify anything | ||
47 | public const float DefaultTerrainHeight = 21f; | ||
48 | |||
46 | public abstract float this[int x, int y] { get; set; } | 49 | public abstract float this[int x, int y] { get; set; } |
47 | // Someday terrain will have caves | 50 | // Someday terrain will have caves |
48 | public abstract float this[int x, int y, int z] { get; set; } | 51 | public abstract float this[int x, int y, int z] { get; set; } |
@@ -51,15 +54,28 @@ namespace OpenSim.Framework | |||
51 | public abstract bool IsTaintedAt(int xx, int yy); | 54 | public abstract bool IsTaintedAt(int xx, int yy); |
52 | public abstract void ClearTaint(); | 55 | public abstract void ClearTaint(); |
53 | 56 | ||
57 | public abstract void ClearLand(); | ||
58 | public abstract void ClearLand(float height); | ||
59 | |||
54 | // Return a representation of this terrain for storing as a blob in the database. | 60 | // Return a representation of this terrain for storing as a blob in the database. |
55 | // Returns 'true' to say blob was stored in the 'out' locations. | 61 | // Returns 'true' to say blob was stored in the 'out' locations. |
56 | public abstract bool GetDatabaseBlob(out int DBFormatRevisionCode, out Array blob); | 62 | public abstract bool GetDatabaseBlob(out int DBFormatRevisionCode, out Array blob); |
57 | 63 | ||
64 | // Given a revision code and a blob from the database, create and return the right type of TerrainData. | ||
65 | // The sizes passed are the expected size of the region. The database info will be used to | ||
66 | // initialize the heightmap of that sized region with as much data is in the blob. | ||
67 | // Return created TerrainData or 'null' if unsuccessful. | ||
68 | public static TerrainData CreateFromDatabaseBlobFactory(int pSizeX, int pSizeY, int pSizeZ, int pFormatCode, byte[] pBlob) | ||
69 | { | ||
70 | // For the moment, there is only one implementation class | ||
71 | return new HeightmapTerrainData(pSizeX, pSizeY, pSizeZ, pFormatCode, pBlob); | ||
72 | } | ||
73 | |||
58 | // return a special compressed representation of the heightmap in shorts | 74 | // return a special compressed representation of the heightmap in shorts |
59 | public abstract short[] GetCompressedMap(); | 75 | public abstract short[] GetCompressedMap(); |
60 | public abstract float CompressionFactor { get; } | 76 | public abstract float CompressionFactor { get; } |
61 | public abstract void SetCompressedMap(short[] cmap, float pCompressionFactor); | ||
62 | 77 | ||
78 | public abstract double[,] GetDoubles(); | ||
63 | public abstract TerrainData Clone(); | 79 | public abstract TerrainData Clone(); |
64 | } | 80 | } |
65 | 81 | ||
@@ -76,9 +92,14 @@ namespace OpenSim.Framework | |||
76 | { | 92 | { |
77 | // Terrain is 'double[256,256]' | 93 | // Terrain is 'double[256,256]' |
78 | Legacy256 = 11, | 94 | Legacy256 = 11, |
79 | // Terrain is 'int32, int32, float[,]' where the shorts are X and Y dimensions | 95 | // Terrain is 'int32, int32, float[,]' where the ints are X and Y dimensions |
80 | // The dimensions are presumed to be multiples of 16 and, more likely, multiples of 256. | 96 | // The dimensions are presumed to be multiples of 16 and, more likely, multiples of 256. |
81 | Variable2D = 22, | 97 | Variable2D = 22, |
98 | // Terrain is 'int32, int32, int32, int16[]' where the ints are X and Y dimensions | ||
99 | // and third int is the 'compression factor'. The heights are compressed as | ||
100 | // "short compressedHeight = (short)(height * compressionFactor);" | ||
101 | // The dimensions are presumed to be multiples of 16 and, more likely, multiples of 256. | ||
102 | Compressed2D = 27, | ||
82 | // A revision that is not listed above or any revision greater than this value is 'Legacy256'. | 103 | // A revision that is not listed above or any revision greater than this value is 'Legacy256'. |
83 | RevisionHigh = 1234 | 104 | RevisionHigh = 1234 |
84 | } | 105 | } |
@@ -124,6 +145,20 @@ namespace OpenSim.Framework | |||
124 | m_taint[ii, jj] = false; | 145 | m_taint[ii, jj] = false; |
125 | } | 146 | } |
126 | 147 | ||
148 | // TerrainData.ClearLand | ||
149 | public override void ClearLand() | ||
150 | { | ||
151 | ClearLand(DefaultTerrainHeight); | ||
152 | } | ||
153 | // TerrainData.ClearLand(float) | ||
154 | public override void ClearLand(float pHeight) | ||
155 | { | ||
156 | short flatHeight = ToCompressedHeight(pHeight); | ||
157 | for (int xx = 0; xx < SizeX; xx++) | ||
158 | for (int yy = 0; yy < SizeY; yy++) | ||
159 | m_heightmap[xx, yy] = flatHeight; | ||
160 | } | ||
161 | |||
127 | public override bool IsTaintedAt(int xx, int yy) | 162 | public override bool IsTaintedAt(int xx, int yy) |
128 | { | 163 | { |
129 | return m_taint[xx / Constants.TerrainPatchSize, yy / Constants.TerrainPatchSize]; | 164 | return m_taint[xx / Constants.TerrainPatchSize, yy / Constants.TerrainPatchSize]; |
@@ -134,7 +169,7 @@ namespace OpenSim.Framework | |||
134 | public override bool GetDatabaseBlob(out int DBRevisionCode, out Array blob) | 169 | public override bool GetDatabaseBlob(out int DBRevisionCode, out Array blob) |
135 | { | 170 | { |
136 | DBRevisionCode = (int)DBTerrainRevision.Legacy256; | 171 | DBRevisionCode = (int)DBTerrainRevision.Legacy256; |
137 | blob = LegacyTerrainSerialization(); | 172 | blob = ToLegacyTerrainSerialization(); |
138 | return false; | 173 | return false; |
139 | } | 174 | } |
140 | 175 | ||
@@ -155,17 +190,6 @@ namespace OpenSim.Framework | |||
155 | return newMap; | 190 | return newMap; |
156 | 191 | ||
157 | } | 192 | } |
158 | // TerrainData.SetCompressedMap | ||
159 | public override void SetCompressedMap(short[] cmap, float pCompressionFactor) | ||
160 | { | ||
161 | m_compressionFactor = pCompressionFactor; | ||
162 | |||
163 | int ind = 0; | ||
164 | for (int xx = 0; xx < SizeX; xx++) | ||
165 | for (int yy = 0; yy < SizeY; yy++) | ||
166 | m_heightmap[xx, yy] = cmap[ind++]; | ||
167 | } | ||
168 | |||
169 | // TerrainData.Clone | 193 | // TerrainData.Clone |
170 | public override TerrainData Clone() | 194 | public override TerrainData Clone() |
171 | { | 195 | { |
@@ -174,6 +198,18 @@ namespace OpenSim.Framework | |||
174 | return ret; | 198 | return ret; |
175 | } | 199 | } |
176 | 200 | ||
201 | // TerrainData.GetDoubles | ||
202 | public override double[,] GetDoubles() | ||
203 | { | ||
204 | double[,] ret = new double[SizeX, SizeY]; | ||
205 | for (int xx = 0; xx < SizeX; xx++) | ||
206 | for (int yy = 0; yy < SizeY; yy++) | ||
207 | ret[xx, yy] = FromCompressedHeight(m_heightmap[xx, yy]); | ||
208 | |||
209 | return ret; | ||
210 | } | ||
211 | |||
212 | |||
177 | // ============================================================= | 213 | // ============================================================= |
178 | 214 | ||
179 | private short[,] m_heightmap; | 215 | private short[,] m_heightmap; |
@@ -230,31 +266,140 @@ namespace OpenSim.Framework | |||
230 | 266 | ||
231 | public HeightmapTerrainData(short[] cmap, float pCompressionFactor, int pX, int pY, int pZ) : this(pX, pY, pZ) | 267 | public HeightmapTerrainData(short[] cmap, float pCompressionFactor, int pX, int pY, int pZ) : this(pX, pY, pZ) |
232 | { | 268 | { |
233 | SetCompressedMap(cmap, pCompressionFactor); | 269 | m_compressionFactor = pCompressionFactor; |
270 | int ind = 0; | ||
271 | for (int xx = 0; xx < SizeX; xx++) | ||
272 | for (int yy = 0; yy < SizeY; yy++) | ||
273 | m_heightmap[xx, yy] = cmap[ind++]; | ||
234 | } | 274 | } |
235 | 275 | ||
276 | // Create a heighmap from a database blob | ||
277 | public HeightmapTerrainData(int pSizeX, int pSizeY, int pSizeZ, int pFormatCode, byte[] pBlob) : this(pSizeX, pSizeY, pSizeZ) | ||
278 | { | ||
279 | switch ((DBTerrainRevision)pFormatCode) | ||
280 | { | ||
281 | case DBTerrainRevision.Compressed2D: | ||
282 | FromCompressedTerrainSerialization(pBlob); | ||
283 | break; | ||
284 | default: | ||
285 | FromLegacyTerrainSerialization(pBlob); | ||
286 | break; | ||
287 | } | ||
288 | } | ||
236 | 289 | ||
237 | // Just create an array of doubles. Presumes the caller implicitly knows the size. | 290 | // Just create an array of doubles. Presumes the caller implicitly knows the size. |
238 | public Array LegacyTerrainSerialization() | 291 | public Array ToLegacyTerrainSerialization() |
239 | { | 292 | { |
240 | Array ret = null; | 293 | Array ret = null; |
241 | using (MemoryStream str = new MemoryStream(SizeX * SizeY * sizeof(double))) | 294 | |
295 | using (MemoryStream str = new MemoryStream((int)Constants.RegionSize * (int)Constants.RegionSize * sizeof(double))) | ||
242 | { | 296 | { |
243 | using (BinaryWriter bw = new BinaryWriter(str)) | 297 | using (BinaryWriter bw = new BinaryWriter(str)) |
244 | { | 298 | { |
245 | // TODO: COMPATIBILITY - Add byte-order conversions | 299 | for (int xx = 0; xx < Constants.RegionSize; xx++) |
246 | for (int ii = 0; ii < SizeX; ii++) | ||
247 | for (int jj = 0; jj < SizeY; jj++) | ||
248 | { | 300 | { |
249 | double height = this[ii, jj]; | 301 | for (int yy = 0; yy < Constants.RegionSize; yy++) |
250 | if (height == 0.0) | 302 | { |
251 | height = double.Epsilon; | 303 | double height = this[xx, yy]; |
252 | bw.Write(height); | 304 | if (height == 0.0) |
305 | height = double.Epsilon; | ||
306 | bw.Write(height); | ||
307 | } | ||
253 | } | 308 | } |
254 | } | 309 | } |
255 | ret = str.ToArray(); | 310 | ret = str.ToArray(); |
256 | } | 311 | } |
257 | return ret; | 312 | return ret; |
258 | } | 313 | } |
314 | |||
315 | // Just create an array of doubles. Presumes the caller implicitly knows the size. | ||
316 | public void FromLegacyTerrainSerialization(byte[] pBlob) | ||
317 | { | ||
318 | // In case database info doesn't match real terrain size, initialize the whole terrain. | ||
319 | ClearLand(); | ||
320 | |||
321 | using (MemoryStream mstr = new MemoryStream(pBlob)) | ||
322 | { | ||
323 | using (BinaryReader br = new BinaryReader(mstr)) | ||
324 | { | ||
325 | for (int xx = 0; xx < (int)Constants.RegionSize; xx++) | ||
326 | { | ||
327 | for (int yy = 0; yy < (int)Constants.RegionSize; yy++) | ||
328 | { | ||
329 | float val = (float)br.ReadDouble(); | ||
330 | if (xx < SizeX && yy < SizeY) | ||
331 | m_heightmap[xx, yy] = ToCompressedHeight(val); | ||
332 | } | ||
333 | } | ||
334 | } | ||
335 | ClearTaint(); | ||
336 | |||
337 | m_log.InfoFormat("{0} Loaded legacy heightmap. SizeX={1}, SizeY={2}", LogHeader, SizeX, SizeY); | ||
338 | } | ||
339 | } | ||
340 | |||
341 | // See the reader below. | ||
342 | public Array ToCompressedTerrainSerialization() | ||
343 | { | ||
344 | Array ret = null; | ||
345 | using (MemoryStream str = new MemoryStream((3 * sizeof(Int32)) + (SizeX * SizeY * sizeof(Int16)))) | ||
346 | { | ||
347 | using (BinaryWriter bw = new BinaryWriter(str)) | ||
348 | { | ||
349 | bw.Write((Int32)DBTerrainRevision.Compressed2D); | ||
350 | bw.Write((Int32)SizeX); | ||
351 | bw.Write((Int32)SizeY); | ||
352 | bw.Write((Int32)CompressionFactor); | ||
353 | for (int yy = 0; yy < SizeY; yy++) | ||
354 | for (int xx = 0; xx < SizeX; xx++) | ||
355 | { | ||
356 | bw.Write((Int16)m_heightmap[xx, yy]); | ||
357 | } | ||
358 | } | ||
359 | ret = str.ToArray(); | ||
360 | } | ||
361 | return ret; | ||
362 | } | ||
363 | |||
364 | // Initialize heightmap from blob consisting of: | ||
365 | // int32, int32, int32, int32, int16[] | ||
366 | // where the first int32 is format code, next two int32s are the X and y of heightmap data and | ||
367 | // the forth int is the compression factor for the following int16s | ||
368 | // This is just sets heightmap info. The actual size of the region was set on this instance's | ||
369 | // creation and any heights not initialized by theis blob are set to the default height. | ||
370 | public void FromCompressedTerrainSerialization(byte[] pBlob) | ||
371 | { | ||
372 | Int32 hmFormatCode, hmSizeX, hmSizeY, hmCompressionFactor; | ||
373 | |||
374 | using (MemoryStream mstr = new MemoryStream(pBlob)) | ||
375 | { | ||
376 | using (BinaryReader br = new BinaryReader(mstr)) | ||
377 | { | ||
378 | hmFormatCode = br.ReadInt32(); | ||
379 | hmSizeX = br.ReadInt32(); | ||
380 | hmSizeY = br.ReadInt32(); | ||
381 | hmCompressionFactor = br.ReadInt32(); | ||
382 | |||
383 | m_compressionFactor = hmCompressionFactor; | ||
384 | |||
385 | // In case database info doesn't match real terrain size, initialize the whole terrain. | ||
386 | ClearLand(); | ||
387 | |||
388 | for (int yy = 0; yy < hmSizeY; yy++) | ||
389 | { | ||
390 | for (int xx = 0; xx < hmSizeX; xx++) | ||
391 | { | ||
392 | Int16 val = br.ReadInt16(); | ||
393 | if (xx < SizeX && yy < SizeY) | ||
394 | m_heightmap[xx, yy] = ToCompressedHeight(val); | ||
395 | } | ||
396 | } | ||
397 | } | ||
398 | ClearTaint(); | ||
399 | |||
400 | m_log.InfoFormat("{0} Read compressed 2d heightmap. Heightmap size=<{1},{2}>. Region size={<{3},{4}>. CompFact={5}", LogHeader, | ||
401 | hmSizeX, hmSizeY, SizeX, SizeY, hmCompressionFactor); | ||
402 | } | ||
403 | } | ||
259 | } | 404 | } |
260 | } | 405 | } |