root / trunk / libraries / libRaster / src / org / gvsig / raster / dataaccess / cache / PageBuffer.java @ 11065
History | View | Annotate | Download (12.3 KB)
1 |
|
---|---|
2 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
3 |
*
|
4 |
* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 2
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
19 |
*/
|
20 |
package org.gvsig.raster.dataaccess.cache; |
21 |
|
22 |
import java.io.IOException; |
23 |
|
24 |
import org.gvsig.raster.dataaccess.buffer.IBand; |
25 |
import org.gvsig.raster.dataset.IBuffer; |
26 |
import org.gvsig.raster.util.DataClassList; |
27 |
import org.gvsig.raster.util.Histogram; |
28 |
import org.gvsig.raster.util.HistogramException; |
29 |
|
30 |
/**
|
31 |
* Esta clase representa una p?gina de cache.Cada p?gina de cach? est? compuesta por
|
32 |
* varios objetos PageBandBuffer donde cada uno es una p?gina que corresponde a una
|
33 |
* banda de raster cacheada.
|
34 |
*
|
35 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
36 |
*
|
37 |
*/
|
38 |
public class PageBuffer implements IBuffer { |
39 |
|
40 |
private PageBandBuffer[] pageBandBuffer = null; |
41 |
private int percent = 0; |
42 |
|
43 |
/**
|
44 |
* Constructor
|
45 |
* @param dataType
|
46 |
* @param width
|
47 |
* @param height
|
48 |
* @param bandNr
|
49 |
* @param malloc
|
50 |
*/
|
51 |
public PageBuffer(int dataType, int width, int height, int bandNr, boolean malloc, int nHddPags){ |
52 |
pageBandBuffer = new PageBandBuffer[bandNr];
|
53 |
for (int i = 0; i < pageBandBuffer.length; i++) |
54 |
pageBandBuffer[i] = new PageBandBuffer(dataType, width, height, 1, malloc, i); |
55 |
} |
56 |
|
57 |
/*
|
58 |
* (non-Javadoc)
|
59 |
* @see org.gvsig.raster.driver.IBuffer#isBandSwitchable()
|
60 |
*/
|
61 |
public boolean isBandSwitchable(){ |
62 |
return false; |
63 |
} |
64 |
|
65 |
/**
|
66 |
* Asigna la lista de paginas de disco
|
67 |
* @param hddList Lista de p?ginas de disco
|
68 |
*/
|
69 |
public void setHddPages(HddPage[] hddList){ |
70 |
for (int i = 0; i < pageBandBuffer.length; i++) |
71 |
pageBandBuffer[i].setHddPages(hddList); |
72 |
} |
73 |
|
74 |
/**
|
75 |
* Carga una p?gina especificada en el par?metro nPag con los datos necesarios.
|
76 |
* Para esto recorre todas las bandas de la p?gina llamando al load de cada una.
|
77 |
*
|
78 |
* @param nPag N?mero de p?gina a cargar
|
79 |
*/
|
80 |
public void loadPage(int nPag){ |
81 |
for (int i = 0; i < pageBandBuffer.length; i++) |
82 |
pageBandBuffer[i].loadPage(nPag); |
83 |
} |
84 |
|
85 |
/**
|
86 |
* Salva una p?gina especificada en el par?metro nPag a disco.
|
87 |
* Para esto recorre todas las bandas de la p?gina llamando al save de cada una.
|
88 |
*
|
89 |
* @param nPag N?mero de p?gina a salvar
|
90 |
* @throws IOException
|
91 |
*/
|
92 |
public void savePage(int nPag) throws IOException{ |
93 |
for (int i = 0; i < pageBandBuffer.length; i++) |
94 |
pageBandBuffer[i].savePage(nPag); |
95 |
} |
96 |
|
97 |
public void assign(int band, byte value) { |
98 |
pageBandBuffer[band].assign(0, value);
|
99 |
} |
100 |
|
101 |
public void assign(int band, short value) { |
102 |
pageBandBuffer[band].assign(0, value);
|
103 |
} |
104 |
|
105 |
public void assign(int band, int value) { |
106 |
pageBandBuffer[band].assign(0, value);
|
107 |
} |
108 |
|
109 |
public void assign(int band, float value) { |
110 |
pageBandBuffer[band].assign(0, value);
|
111 |
} |
112 |
|
113 |
public void assign(int band, double value) { |
114 |
pageBandBuffer[band].assign(0, value);
|
115 |
} |
116 |
|
117 |
public void assignBand(int nBand, IBand band) { |
118 |
} |
119 |
|
120 |
public void assignBandToNotValid(int iBand) { |
121 |
} |
122 |
|
123 |
public IBuffer cloneBuffer() {
|
124 |
return null; |
125 |
} |
126 |
|
127 |
public void copyBand(int nBand, IBand band) { |
128 |
} |
129 |
|
130 |
public IBand createBand(byte defaultValue) { |
131 |
return null; |
132 |
} |
133 |
|
134 |
public IBand getBand(int nBand) { |
135 |
return null; |
136 |
} |
137 |
|
138 |
public IBuffer getBandBuffer(int nBand) { |
139 |
return null; |
140 |
} |
141 |
|
142 |
public int getBandCount() { |
143 |
return pageBandBuffer[0].getBandCount(); |
144 |
} |
145 |
|
146 |
public int getDataType() { |
147 |
return pageBandBuffer[0].getDataType(); |
148 |
} |
149 |
|
150 |
public void setDataType(int dataType) { |
151 |
|
152 |
} |
153 |
|
154 |
public int getHeight() { |
155 |
return pageBandBuffer[0].getHeight(); |
156 |
} |
157 |
|
158 |
public int getWidth() { |
159 |
return pageBandBuffer[0].getWidth(); |
160 |
} |
161 |
|
162 |
|
163 |
|
164 |
public byte getByteNoDataValue() { |
165 |
return pageBandBuffer[0].getByteNoDataValue(); |
166 |
} |
167 |
|
168 |
public float getFloatNoDataValue() { |
169 |
return pageBandBuffer[0].getFloatNoDataValue(); |
170 |
} |
171 |
|
172 |
public int getIntNoDataValue() { |
173 |
return pageBandBuffer[0].getIntNoDataValue(); |
174 |
} |
175 |
|
176 |
public double getNoDataValue() { |
177 |
return pageBandBuffer[0].getNoDataValue(); |
178 |
} |
179 |
|
180 |
public double getNotValidValue() { |
181 |
return pageBandBuffer[0].getNotValidValue(); |
182 |
} |
183 |
|
184 |
public short getShortNoDataValue() { |
185 |
return pageBandBuffer[0].getShortNoDataValue(); |
186 |
} |
187 |
|
188 |
|
189 |
|
190 |
public byte getElemByte(int line, int col, int band) { |
191 |
return pageBandBuffer[band].getElemByte(line, col, 0); |
192 |
} |
193 |
|
194 |
public short getElemShort(int line, int col, int band) { |
195 |
return pageBandBuffer[band].getElemShort(line, col, 0); |
196 |
} |
197 |
|
198 |
public int getElemInt(int line, int col, int band) { |
199 |
return pageBandBuffer[band].getElemInt(line, col, 0); |
200 |
} |
201 |
|
202 |
public float getElemFloat(int line, int col, int band) { |
203 |
return pageBandBuffer[band].getElemFloat(line, col, 0); |
204 |
} |
205 |
|
206 |
public double getElemDouble(int line, int col, int band) { |
207 |
return pageBandBuffer[band].getElemDouble(line, col, 0); |
208 |
} |
209 |
|
210 |
|
211 |
|
212 |
|
213 |
public void getElemByte(int line, int col, byte[] data) { |
214 |
for (int i = 0; i < pageBandBuffer.length; i++) |
215 |
data[i] = pageBandBuffer[i].getElemByte(line, col, 0);
|
216 |
} |
217 |
|
218 |
public void getElemShort(int line, int col, short[] data) { |
219 |
for (int i = 0; i < pageBandBuffer.length; i++) |
220 |
data[i] = pageBandBuffer[i].getElemShort(line, col, 0);
|
221 |
} |
222 |
|
223 |
public void getElemInt(int line, int col, int[] data) { |
224 |
for (int i = 0; i < pageBandBuffer.length; i++) |
225 |
data[i] = pageBandBuffer[i].getElemInt(line, col, 0);
|
226 |
} |
227 |
|
228 |
public void getElemFloat(int line, int col, float[] data) { |
229 |
for (int i = 0; i < pageBandBuffer.length; i++) |
230 |
data[i] = pageBandBuffer[i].getElemFloat(line, col, 0);
|
231 |
} |
232 |
|
233 |
public void getElemDouble(int line, int col, double[] data) { |
234 |
for (int i = 0; i < pageBandBuffer.length; i++) |
235 |
data[i] = pageBandBuffer[i].getElemDouble(line, col, 0);
|
236 |
} |
237 |
|
238 |
|
239 |
public byte[][] getLineByte(int line) { |
240 |
byte[][] b = new byte[pageBandBuffer.length][]; |
241 |
for (int i = 0; i < pageBandBuffer.length; i++) |
242 |
b[i] = pageBandBuffer[i].getLineByte(line)[0];
|
243 |
return b;
|
244 |
} |
245 |
|
246 |
public double[][] getLineDouble(int line) { |
247 |
double[][] d = new double[pageBandBuffer.length][]; |
248 |
for (int i = 0; i < pageBandBuffer.length; i++) |
249 |
d[i] = pageBandBuffer[i].getLineDouble(line)[0];
|
250 |
return d;
|
251 |
} |
252 |
|
253 |
public float[][] getLineFloat(int line) { |
254 |
float[][] f = new float[pageBandBuffer.length][]; |
255 |
for (int i = 0; i < pageBandBuffer.length; i++) |
256 |
f[i] = pageBandBuffer[i].getLineFloat(line)[0];
|
257 |
return f;
|
258 |
} |
259 |
|
260 |
public int[][] getLineInt(int line) { |
261 |
int[][] in = new int[pageBandBuffer.length][]; |
262 |
for (int i = 0; i < pageBandBuffer.length; i++) |
263 |
in[i] = pageBandBuffer[i].getLineInt(line)[0];
|
264 |
return in;
|
265 |
} |
266 |
|
267 |
public short[][] getLineShort(int line) { |
268 |
short[][] s = new short[pageBandBuffer.length][]; |
269 |
for (int i = 0; i < pageBandBuffer.length; i++) |
270 |
s[i] = pageBandBuffer[i].getLineShort(line)[0];
|
271 |
return s;
|
272 |
} |
273 |
|
274 |
|
275 |
|
276 |
public byte[] getLineFromBandByte(int line, int band) { |
277 |
return pageBandBuffer[band].getLineFromBandByte(line, 0); |
278 |
} |
279 |
|
280 |
public double[] getLineFromBandDouble(int line, int band) { |
281 |
return pageBandBuffer[band].getLineFromBandDouble(line, 0); |
282 |
} |
283 |
|
284 |
public float[] getLineFromBandFloat(int line, int band) { |
285 |
return pageBandBuffer[band].getLineFromBandFloat(line, 0); |
286 |
} |
287 |
|
288 |
public int[] getLineFromBandInt(int line, int band) { |
289 |
return pageBandBuffer[band].getLineFromBandInt(line, 0); |
290 |
} |
291 |
|
292 |
public short[] getLineFromBandShort(int line, int band) { |
293 |
return pageBandBuffer[band].getLineFromBandShort(line, 0); |
294 |
} |
295 |
|
296 |
|
297 |
|
298 |
|
299 |
public void interchangeBands(int band1, int band2) { |
300 |
} |
301 |
|
302 |
public void mallocOneBand(int dataType, int width, int height, int band) { |
303 |
} |
304 |
|
305 |
public void replicateBand(int orig, int dest) { |
306 |
} |
307 |
|
308 |
|
309 |
|
310 |
public void setElem(int line, int col, int band, byte data) { |
311 |
pageBandBuffer[band].setElem(line, col, 0, data);
|
312 |
} |
313 |
|
314 |
public void setElem(int line, int col, int band, short data) { |
315 |
pageBandBuffer[band].setElem(line, col, 0, data);
|
316 |
} |
317 |
|
318 |
public void setElem(int line, int col, int band, int data) { |
319 |
pageBandBuffer[band].setElem(line, col, 0, data);
|
320 |
} |
321 |
|
322 |
public void setElem(int line, int col, int band, float data) { |
323 |
pageBandBuffer[band].setElem(line, col, 0, data);
|
324 |
} |
325 |
|
326 |
public void setElem(int line, int col, int band, double data) { |
327 |
pageBandBuffer[band].setElem(line, col, 0, data);
|
328 |
} |
329 |
|
330 |
|
331 |
|
332 |
public void setElemByte(int line, int col, byte[] data) { |
333 |
byte[] b = new byte[1]; |
334 |
for (int i = 0; i < pageBandBuffer.length; i++) { |
335 |
b[0] = data[i];
|
336 |
pageBandBuffer[i].setElemByte(line, col, b); |
337 |
} |
338 |
} |
339 |
|
340 |
public void setElemDouble(int line, int col, double[] data) { |
341 |
double[] b = new double[1]; |
342 |
for (int i = 0; i < pageBandBuffer.length; i++) { |
343 |
b[0] = data[i];
|
344 |
pageBandBuffer[i].setElemDouble(line, col, b); |
345 |
} |
346 |
} |
347 |
|
348 |
public void setElemFloat(int line, int col, float[] data) { |
349 |
float[] b = new float[1]; |
350 |
for (int i = 0; i < pageBandBuffer.length; i++) { |
351 |
b[0] = data[i];
|
352 |
pageBandBuffer[i].setElemFloat(line, col, b); |
353 |
} |
354 |
} |
355 |
|
356 |
public void setElemInt(int line, int col, int[] data) { |
357 |
int[] b = new int[1]; |
358 |
for (int i = 0; i < pageBandBuffer.length; i++) { |
359 |
b[0] = data[i];
|
360 |
pageBandBuffer[i].setElemInt(line, col, b); |
361 |
} |
362 |
} |
363 |
|
364 |
public void setElemShort(int line, int col, short[] data) { |
365 |
short[] b = new short[1]; |
366 |
for (int i = 0; i < pageBandBuffer.length; i++) { |
367 |
b[0] = data[i];
|
368 |
pageBandBuffer[i].setElemShort(line, col, b); |
369 |
} |
370 |
} |
371 |
|
372 |
|
373 |
|
374 |
public void setLineByte(byte[][] data, int line) { |
375 |
} |
376 |
|
377 |
public void setLineDouble(double[][] data, int line) { |
378 |
} |
379 |
|
380 |
public void setLineFloat(float[][] data, int line) { |
381 |
} |
382 |
|
383 |
public void setLineInBandByte(byte[] data, int line, int band) { |
384 |
} |
385 |
|
386 |
public void setLineInBandDouble(double[] data, int line, int band) { |
387 |
} |
388 |
|
389 |
public void setLineInBandFloat(float[] data, int line, int band) { |
390 |
} |
391 |
|
392 |
public void setLineInBandInt(int[] data, int line, int band) { |
393 |
} |
394 |
|
395 |
public void setLineInBandShort(short[] data, int line, int band) { |
396 |
} |
397 |
|
398 |
public void setLineInt(int[][] data, int line) { |
399 |
} |
400 |
|
401 |
public void setLineShort(short[][] data, int line) { |
402 |
} |
403 |
|
404 |
public void setNoDataValue(double nd) { |
405 |
} |
406 |
|
407 |
public void setNotValidValue(double value) { |
408 |
} |
409 |
|
410 |
public void switchBands(int[] bands) { |
411 |
} |
412 |
|
413 |
/*
|
414 |
* (non-Javadoc)
|
415 |
* @see org.gvsig.raster.driver.datasetproperties.IHistogramable#getHistogram()
|
416 |
*/
|
417 |
public Histogram getHistogram() throws HistogramException { |
418 |
percent = 0;
|
419 |
if(getDataType() != IBuffer.TYPE_BYTE)
|
420 |
return null; |
421 |
Histogram hist = new Histogram(getBandCount(), 256); |
422 |
for (int iBand = 0; iBand < getBandCount(); iBand++) |
423 |
for (int col = 0; col < getHeight(); col++) |
424 |
for (int row = 0; row < getWidth(); row++) |
425 |
hist.incrementPxValue(iBand, getElemByte(row, col, iBand)); |
426 |
percent = 100;
|
427 |
return hist;
|
428 |
} |
429 |
|
430 |
/*
|
431 |
* (non-Javadoc)
|
432 |
* @see org.gvsig.raster.driver.datasetproperties.IHistogramable#getHistogramUsingClasses(org.gvsig.raster.shared.DataClassList)
|
433 |
*/
|
434 |
public Histogram getHistogramUsingClasses(DataClassList classes) throws HistogramException { |
435 |
Histogram hist = new Histogram(getBandCount(), classes.length());
|
436 |
for (int iBand = 0; iBand < getBandCount(); iBand++) { |
437 |
for (int col = 0; col < getHeight(); col++) { |
438 |
for (int row = 0; row < getWidth(); row++) { |
439 |
int pixelValue = -1; |
440 |
switch(this.getDataType()){ |
441 |
case IBuffer.TYPE_BYTE: pixelValue = classes.getClassPosition((double)getElemByte(row, col, iBand)); break; |
442 |
case IBuffer.TYPE_SHORT: pixelValue = classes.getClassPosition((double)getElemShort(row, col, iBand)); break; |
443 |
case IBuffer.TYPE_INT: pixelValue = classes.getClassPosition((double)getElemInt(row, col, iBand)); break; |
444 |
case IBuffer.TYPE_FLOAT: pixelValue = classes.getClassPosition((double)getElemFloat(row, col, iBand)); break; |
445 |
case IBuffer.TYPE_DOUBLE: pixelValue = classes.getClassPosition((double)getElemDouble(row, col, iBand)); break; |
446 |
} |
447 |
if(pixelValue >= 0) |
448 |
hist.incrementPxValue(iBand, pixelValue); |
449 |
} |
450 |
} |
451 |
} |
452 |
return hist;
|
453 |
} |
454 |
|
455 |
/*
|
456 |
* (non-Javadoc)
|
457 |
* @see org.gvsig.raster.util.IHistogramable#resetPercent()
|
458 |
*/
|
459 |
public void resetPercent() { |
460 |
percent = 0;
|
461 |
} |
462 |
|
463 |
/*
|
464 |
* (non-Javadoc)
|
465 |
* @see org.gvsig.raster.util.IHistogramable#getPercent()
|
466 |
*/
|
467 |
public int getPercent() { |
468 |
return percent;
|
469 |
} |
470 |
} |