svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / io / ErmapperWriter.java @ 12124
History | View | Annotate | Download (23.2 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU General Public License
|
| 7 |
* as published by the Free Software Foundation; either version 2
|
| 8 |
* of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 18 |
*/
|
| 19 |
package org.gvsig.raster.dataset.io; |
| 20 |
|
| 21 |
import java.io.IOException; |
| 22 |
|
| 23 |
import org.cresques.io.GeoRasterFile; |
| 24 |
import org.gvsig.raster.dataset.GeoRasterWriter; |
| 25 |
import org.gvsig.raster.dataset.IBuffer; |
| 26 |
import org.gvsig.raster.dataset.IDataWriter; |
| 27 |
import org.gvsig.raster.dataset.Params; |
| 28 |
import org.gvsig.raster.dataset.Params.Param; |
| 29 |
import org.gvsig.raster.dataset.io.features.WriteFileFormatFeatures; |
| 30 |
import org.gvsig.raster.shared.Extent; |
| 31 |
import org.gvsig.raster.util.RasterUtilities; |
| 32 |
import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
| 33 |
import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
| 34 |
|
| 35 |
import es.gva.cit.jecwcompress.EcwException; |
| 36 |
import es.gva.cit.jecwcompress.JniObject; |
| 37 |
import es.gva.cit.jecwcompress.NCSEcwCompressClient; |
| 38 |
import es.gva.cit.jecwcompress.ReadCallBack; |
| 39 |
import es.gva.cit.jgdal.GdalRasterBand; |
| 40 |
|
| 41 |
|
| 42 |
/**
|
| 43 |
* Driver para la compresi?n en formato Ecw.
|
| 44 |
*
|
| 45 |
* Puede exportar un fichero desde un GeoRasterFile en cualquier formato soportado
|
| 46 |
* por los drivers de lectura a uno en formato Ecw.
|
| 47 |
*
|
| 48 |
* Puede salvar a disco en formato Ecw obteniendo los datos que van siendo servidos
|
| 49 |
* desde el cliente. Este cliente debe implementar un IDataWriter o tener un objeto
|
| 50 |
* que lo implemente. Inicialmente le pasar? los par?metros de la imagen de salida
|
| 51 |
* y cuando el driver comience a escribir le ir? solicitando m?s a trav?s del m?todo
|
| 52 |
* readData de IDataWriter. El cliente ser? el que lleve el control de lo que va
|
| 53 |
* sirviendo y lo que le queda por servir.
|
| 54 |
* @author Nacho Brodin (brodin_ign@gva.es)
|
| 55 |
*/
|
| 56 |
public class ErmapperWriter extends GeoRasterWriter { |
| 57 |
|
| 58 |
public static void register() { |
| 59 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
| 60 |
WriteFileFormatFeatures features = null;
|
| 61 |
|
| 62 |
String os = System.getProperties().getProperty("os.version"); |
| 63 |
if (os.startsWith("2.4")){ |
| 64 |
extensionPoints.add("RasterWriter", "ecw", ErmapperWriter.class); |
| 65 |
features = new WriteFileFormatFeatures("Ecw", "ecw", -1, null, ErmapperWriter.class); |
| 66 |
fileFeature.put("ecw", features);
|
| 67 |
} |
| 68 |
extensionPoints.add("RasterWriter", "jp2", ErmapperWriter.class); |
| 69 |
features = new WriteFileFormatFeatures("Jpeg2000", "jp2", -1, null, ErmapperWriter.class); |
| 70 |
fileFeature.put("jp2", features);
|
| 71 |
} |
| 72 |
|
| 73 |
public final int windowSizeX = 386; |
| 74 |
public final int windowSizeY = 220; |
| 75 |
public final int panelSizeX = 358; |
| 76 |
public final int panelSizeY = 125; |
| 77 |
public final String panelLayout = "BorderLayout"; |
| 78 |
private NCSEcwCompressClient compressclient = null; |
| 79 |
private Reader readerObj; |
| 80 |
private double pixelSizeX; |
| 81 |
private double pixelSizeY; |
| 82 |
private double geoCoordOrigenX; |
| 83 |
private double geoCoordOrigenY; |
| 84 |
private boolean consulta = false; |
| 85 |
|
| 86 |
/**
|
| 87 |
* Carga los par?metros de este driver.
|
| 88 |
*/
|
| 89 |
public void loadParams() { |
| 90 |
WriteFileFormatFeatures wfff = new WriteFileFormatFeatures();
|
| 91 |
wfff.loadParams(); |
| 92 |
driverParams = wfff.getParams(); |
| 93 |
|
| 94 |
driverParams.setParam( "compression",
|
| 95 |
"10",
|
| 96 |
Params.SLIDER, |
| 97 |
new String[]{ "0", "20", "10", "1", "5" }); //min, max, valor defecto, intervalo peque?o, intervalo grande; |
| 98 |
|
| 99 |
driverParams.setParam( "format",
|
| 100 |
"RGB",
|
| 101 |
Params.CHOICE, |
| 102 |
new String[]{ "NONE", "UINT8", "YUV", "MULTI", "RGB"}); |
| 103 |
} |
| 104 |
|
| 105 |
/**
|
| 106 |
* Constructor para la obtenci?n de par?metros del driver.
|
| 107 |
*/
|
| 108 |
public ErmapperWriter(String fileName) { |
| 109 |
ident = RasterUtilities.getExtensionFromFileName(fileName); |
| 110 |
driver = ((WriteFileFormatFeatures)fileFeature.get(ident)).getDriverName(); |
| 111 |
|
| 112 |
loadParams(); |
| 113 |
|
| 114 |
consulta = true;
|
| 115 |
} |
| 116 |
|
| 117 |
/**
|
| 118 |
* Constructor para la lectura de datos desde el objeto cliente a partir
|
| 119 |
* de un viewport dado.
|
| 120 |
* @param dataWriter Objeto que sirve datos para el escritor
|
| 121 |
* @param vp viewport de origen
|
| 122 |
* @param outFileName Fichero de salida
|
| 123 |
* @param blockSize Tama?o de bloque
|
| 124 |
* @param nBands N?mero de bandas
|
| 125 |
* @param compresion Compresi?n
|
| 126 |
* @throws EcwException
|
| 127 |
* @throws IOException
|
| 128 |
*/
|
| 129 |
public ErmapperWriter( IDataWriter dataWriter,
|
| 130 |
String outFileName,
|
| 131 |
Integer nBands,
|
| 132 |
Extent ex, |
| 133 |
Integer outSizeX,
|
| 134 |
Integer outSizeY,
|
| 135 |
Integer dataType,
|
| 136 |
Params params) throws EcwException, IOException { |
| 137 |
ident = RasterUtilities.getExtensionFromFileName(outFileName); |
| 138 |
driver = ((WriteFileFormatFeatures)fileFeature.get(ident)).getDriverName(); |
| 139 |
this.dataType = dataType.intValue();
|
| 140 |
|
| 141 |
if (nBands.intValue() <= 0) |
| 142 |
throw new EcwException("N?mero de bandas erroneo."); |
| 143 |
|
| 144 |
if ((ex.width() <= 0) || (ex.height() <= 0)) { |
| 145 |
throw new EcwException("Tama?o de la imagen de salida erroneo."); |
| 146 |
} |
| 147 |
|
| 148 |
this.outFileName = outFileName;
|
| 149 |
this.dataWriter = dataWriter;
|
| 150 |
|
| 151 |
this.nBands = nBands.intValue();
|
| 152 |
|
| 153 |
this.sizeWindowX = outSizeX.intValue();
|
| 154 |
this.sizeWindowY = outSizeY.intValue();
|
| 155 |
|
| 156 |
//Calculamos la georeferenciaci?n a partir del extend pasado por el cliente.
|
| 157 |
double maxX = ex.maxX();
|
| 158 |
geoCoordOrigenX = ex.minX(); |
| 159 |
geoCoordOrigenY = ex.maxY(); |
| 160 |
|
| 161 |
double minY = ex.minY();
|
| 162 |
pixelSizeX = (maxX - geoCoordOrigenX) / outSizeX.intValue(); |
| 163 |
pixelSizeY = (minY - geoCoordOrigenY) / outSizeY.intValue(); |
| 164 |
|
| 165 |
if (pixelSizeX == 0) |
| 166 |
pixelSizeX = 1.0;
|
| 167 |
|
| 168 |
if (pixelSizeY == 0) |
| 169 |
pixelSizeY = 1.0;
|
| 170 |
|
| 171 |
if(params == null) |
| 172 |
loadParams(); |
| 173 |
else
|
| 174 |
driverParams = params; |
| 175 |
|
| 176 |
init(); |
| 177 |
} |
| 178 |
|
| 179 |
/**
|
| 180 |
* Inicializaci?n de los par?metros del compresor que ser?n obtenidos
|
| 181 |
* de PxRaster.
|
| 182 |
* @throws EcwException
|
| 183 |
*/
|
| 184 |
private void init() throws EcwException { |
| 185 |
percent = 0;
|
| 186 |
int comp = new Integer(((Param)driverParams.getParamById("compression")).defaultValue).intValue(); |
| 187 |
String format = ((Param)driverParams.getParamById("format")).defaultValue; |
| 188 |
if ( comp == 0 ) |
| 189 |
driverParams.changeParamValue("compression", "1"); |
| 190 |
|
| 191 |
if (compressclient == null) |
| 192 |
compressclient = new NCSEcwCompressClient();
|
| 193 |
|
| 194 |
compressclient.setOutputFilename(outFileName); |
| 195 |
compressclient.setInputFilename(inFileName); |
| 196 |
compressclient.setTargetCompress(comp); |
| 197 |
compressclient.setInOutSizeX(sizeWindowX); |
| 198 |
compressclient.setInOutSizeY(sizeWindowY); |
| 199 |
compressclient.setInputBands(nBands); |
| 200 |
compressclient.setCompressFormat(convertFormatToInt(format)); |
| 201 |
|
| 202 |
/* boolean georef = new Boolean(((Param)driverParams.getParamById("georef")).defaultValue).booleanValue();
|
| 203 |
if (georef) {*/
|
| 204 |
compressclient.setCellIncrementX(pixelSizeX); |
| 205 |
compressclient.setCellIncrementY(pixelSizeY); |
| 206 |
compressclient.setOriginX(geoCoordOrigenX); |
| 207 |
compressclient.setOriginY(geoCoordOrigenY); |
| 208 |
//}
|
| 209 |
|
| 210 |
compressclient.setCellSizeUnits(1);
|
| 211 |
|
| 212 |
int blocksize = new Integer(((Param)driverParams.getParamById("blocksize")).defaultValue).intValue(); |
| 213 |
if (dataWriter != null) { |
| 214 |
readerObj = new Reader(dataWriter, compressclient, sizeWindowX, |
| 215 |
sizeWindowY, blocksize, nBands, this, dataType);
|
| 216 |
} |
| 217 |
} |
| 218 |
|
| 219 |
/**
|
| 220 |
* Convierte la cadena que representa el formato en un valor n?merico
|
| 221 |
* que entiende el driver.
|
| 222 |
* @param format Cadena que representa el formato
|
| 223 |
* @return Entero que representa a la cadena
|
| 224 |
*/
|
| 225 |
private int convertFormatToInt(String format) { |
| 226 |
if(format.compareTo("NONE") == 0) |
| 227 |
return 0; |
| 228 |
if(format.compareTo("UINT8") == 0) |
| 229 |
return 1; |
| 230 |
if(format.compareTo("YUV") == 0) |
| 231 |
return 2; |
| 232 |
if(format.compareTo("MULTI") == 0) |
| 233 |
return 3; |
| 234 |
if(format.compareTo("RGB") == 0) |
| 235 |
return 4; |
| 236 |
return -1; |
| 237 |
} |
| 238 |
/**
|
| 239 |
* A partir de un elemento que contiene una propiedad y un valor
|
| 240 |
* lo parsea y asigna el valor a su variable.
|
| 241 |
* @param propValue elemento con la forma propiedad=valor
|
| 242 |
*/
|
| 243 |
private void readProperty(String propValue) { |
| 244 |
String prop = propValue.substring(0, propValue.indexOf("=")); |
| 245 |
|
| 246 |
if (propValue.startsWith(prop)) {
|
| 247 |
String value = propValue.substring(propValue.indexOf("=") + 1, propValue.length()); |
| 248 |
|
| 249 |
if ((value != null) && !value.equals("")) { |
| 250 |
if (prop.equals("BLOCKSIZE")) |
| 251 |
driverParams.changeParamValue("blocksize", value);
|
| 252 |
if (prop.equals("FORMAT")) |
| 253 |
driverParams.changeParamValue("format", value);
|
| 254 |
if (prop.equals("COMPRESSION")) |
| 255 |
driverParams.changeParamValue("compression", value);
|
| 256 |
} |
| 257 |
} |
| 258 |
} |
| 259 |
|
| 260 |
/**
|
| 261 |
* Asigna propiedades al driver a partir de un vector de
|
| 262 |
* strings donde cada elemento tiene la estructura de
|
| 263 |
* propiedad=valor.
|
| 264 |
* @param props Propiedades
|
| 265 |
*/
|
| 266 |
public void setProps(String[] props) { |
| 267 |
for (int iProps = 0; iProps < props.length; iProps++) |
| 268 |
readProperty(props[iProps]); |
| 269 |
|
| 270 |
loadParams(); |
| 271 |
|
| 272 |
try {
|
| 273 |
if (!consulta) {
|
| 274 |
init(); |
| 275 |
} |
| 276 |
} catch (EcwException e) {
|
| 277 |
e.printStackTrace(); |
| 278 |
} |
| 279 |
} |
| 280 |
|
| 281 |
/**
|
| 282 |
* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
|
| 283 |
* @throws IOException
|
| 284 |
*/
|
| 285 |
public void fileWrite() throws IOException { |
| 286 |
/* try {
|
| 287 |
compressclient.NCSEcwCompressOpen(false);
|
| 288 |
compressclient.NCSEcwCompress(readerObj);
|
| 289 |
} catch (EcwException e) {
|
| 290 |
e.printStackTrace();
|
| 291 |
}*/
|
| 292 |
//TODO: FUNCIONALIDAD: Compresi?n a partir de un dataset. De momento no es necesario y es posible que nunca lo sea.
|
| 293 |
} |
| 294 |
|
| 295 |
/**
|
| 296 |
* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
|
| 297 |
* @throws IOException
|
| 298 |
*/
|
| 299 |
public void dataWrite() throws IOException { |
| 300 |
if (dataWriter == null) { |
| 301 |
throw new IOException("No se ha obtenido un objeto para la lectura valido."); |
| 302 |
} |
| 303 |
|
| 304 |
try {
|
| 305 |
compressclient.NCSEcwCompressOpen(false);
|
| 306 |
compressclient.NCSEcwCompress(readerObj); |
| 307 |
} catch (EcwException e) {
|
| 308 |
e.printStackTrace(); |
| 309 |
} |
| 310 |
} |
| 311 |
|
| 312 |
/**
|
| 313 |
* Cierra el compresor ecw.
|
| 314 |
*/
|
| 315 |
public void writeClose() { |
| 316 |
try {
|
| 317 |
compressclient.NCSEcwCompressClose(); |
| 318 |
} catch (EcwException e) {
|
| 319 |
e.printStackTrace(); |
| 320 |
} |
| 321 |
} |
| 322 |
|
| 323 |
/**
|
| 324 |
* Cancela el compresor ecw.
|
| 325 |
*/
|
| 326 |
public void writeCancel() { |
| 327 |
try {
|
| 328 |
if(readerObj != null) |
| 329 |
readerObj.setWrite(false);
|
| 330 |
compressclient.NCSEcwCompressCancel(); |
| 331 |
} catch (EcwException e) {
|
| 332 |
e.printStackTrace(); |
| 333 |
} |
| 334 |
} |
| 335 |
|
| 336 |
} |
| 337 |
|
| 338 |
|
| 339 |
/**
|
| 340 |
* Clase que se encarga de la lectura de datos que ser?n escritos. Hereda de JniObject
|
| 341 |
* para asegurar para asegurar que el interfaz de la libreria tiene acceso a variables
|
| 342 |
* necesarias para la petici?n de datos cuando vacia el buffer. Implementa ReadCallBack
|
| 343 |
* para obligar escribir el m?todo loadBuffer encargado de servir los datos cuando el
|
| 344 |
* buffer se vacia.
|
| 345 |
*
|
| 346 |
*/
|
| 347 |
class Reader extends JniObject implements ReadCallBack { |
| 348 |
private NCSEcwCompressClient compressclient = null; |
| 349 |
private int width; |
| 350 |
private int height; |
| 351 |
private int ulX; |
| 352 |
private int ulY; |
| 353 |
private GeoRasterFile grf = null; |
| 354 |
private IDataWriter dataWriter = null; |
| 355 |
private GdalRasterBand rband = null; |
| 356 |
private GeoRasterWriter writer = null; |
| 357 |
private int blockSizeRead = 1; //Alto del bloque leido de la imagen origen |
| 358 |
private int countLine = 1; //Contador de l?neas procesadas en cada lectura de bloque |
| 359 |
byte[][] buf = null; |
| 360 |
byte[] bufband1 = null; |
| 361 |
byte[] bufband2 = null; |
| 362 |
byte[] bufband3 = null; |
| 363 |
byte[] bufband4 = null; |
| 364 |
byte[] bufband5 = null; |
| 365 |
byte[] bufband6 = null; |
| 366 |
int[] dataBuffer = null; |
| 367 |
byte[][] byteBuffer = null; |
| 368 |
private int lineasBloqueFinal = 0; //N?mero de l?neas leidas del bloque final |
| 369 |
private int nBlocks = 0; //N?mero de bloques completos |
| 370 |
private int countBlock = 1; //Contador de bloques completos procesados |
| 371 |
private int nBands = 0; |
| 372 |
private boolean write = true; //Cuando est? a true se puede escribir en la imagen de salida. Si est? a false el proceso es interrumpido |
| 373 |
private int dataType = IBuffer.TYPE_BYTE; |
| 374 |
|
| 375 |
/**
|
| 376 |
* Constructor para la escritura de un fichero desde un GeoRasterFile
|
| 377 |
* @param grf GeorasterFile del fichero de origen
|
| 378 |
* @param compressclient Objeto que representa al compresor ecw
|
| 379 |
* @param ulx Coordenada X de la esquina superior izquierda
|
| 380 |
* @param uly Coordenada Y de la esquina superior izquierda
|
| 381 |
* @param width Ancho de la imagen
|
| 382 |
* @param height Alto de la imagen
|
| 383 |
* @param blockSizeRead Altura del bloque en la lectura
|
| 384 |
*/
|
| 385 |
public Reader(GeoRasterFile grf, NCSEcwCompressClient compressclient, |
| 386 |
int ulx, int uly, int width, int height, int blockSizeRead, int dataType) { |
| 387 |
this.compressclient = compressclient;
|
| 388 |
this.width = width;
|
| 389 |
this.height = height;
|
| 390 |
this.ulX = ulx;
|
| 391 |
this.ulY = uly;
|
| 392 |
this.grf = grf;
|
| 393 |
this.nBands = grf.getBandCount();
|
| 394 |
this.dataType = dataType;
|
| 395 |
|
| 396 |
if (blockSizeRead != 0) { |
| 397 |
this.blockSizeRead = blockSizeRead;
|
| 398 |
} |
| 399 |
|
| 400 |
nBlocks = (int) (height / this.blockSizeRead); |
| 401 |
lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
|
| 402 |
|
| 403 |
} |
| 404 |
|
| 405 |
/**
|
| 406 |
* Constructor para que los datos sean servidos desde el cliente a trav?s de un
|
| 407 |
* IDataWriter.
|
| 408 |
* @param dataWriter Objeto servidor de datos del driver
|
| 409 |
* @param compressclient Objeto que representa al compresor ecw
|
| 410 |
* @param width Ancho de la imagen
|
| 411 |
* @param height Alto de la imagen
|
| 412 |
* @param blockSizeRead Altura del bloque en la lectura
|
| 413 |
* @param nBands N?mero de bandas
|
| 414 |
*/
|
| 415 |
public Reader(IDataWriter dataWriter, NCSEcwCompressClient compressclient, |
| 416 |
int width, int height, int blockSizeRead, int nBands, |
| 417 |
GeoRasterWriter writer, int dataType) {
|
| 418 |
this.compressclient = compressclient;
|
| 419 |
this.width = width;
|
| 420 |
this.height = height;
|
| 421 |
this.dataWriter = dataWriter;
|
| 422 |
this.nBands = nBands;
|
| 423 |
this.writer = writer;
|
| 424 |
this.dataType = dataType;
|
| 425 |
|
| 426 |
if (blockSizeRead != 0) { |
| 427 |
this.blockSizeRead = blockSizeRead;
|
| 428 |
} |
| 429 |
|
| 430 |
nBlocks = (int) (height / this.blockSizeRead); |
| 431 |
lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
|
| 432 |
} |
| 433 |
|
| 434 |
/**
|
| 435 |
* Lectura de bandas desde un GeoRasterFile
|
| 436 |
* @param ulX Coordenada X de la esquina superior izquierda
|
| 437 |
* @param ulY Coordenada Y de la esquina superior izquierda
|
| 438 |
* @param width Ancho de la imagen
|
| 439 |
* @param lineasLeidas N?mero de l?neas a leer del origen
|
| 440 |
*/
|
| 441 |
private void readBandsGRFile(int ulX, int ulY, int width, int lineasLeidas) { |
| 442 |
if (nBands >= 1) |
| 443 |
bufband1 = grf.getWindow(ulX, ulY, width, lineasLeidas, 1);
|
| 444 |
|
| 445 |
if (nBands >= 2) |
| 446 |
bufband2 = grf.getWindow(ulX, ulY, width, lineasLeidas, 2);
|
| 447 |
|
| 448 |
if (nBands >= 3) |
| 449 |
bufband3 = grf.getWindow(ulX, ulY, width, lineasLeidas, 3);
|
| 450 |
|
| 451 |
if (nBands >= 4) |
| 452 |
bufband4 = grf.getWindow(ulX, ulY, width, lineasLeidas, 4);
|
| 453 |
|
| 454 |
if (nBands >= 5) |
| 455 |
bufband5 = grf.getWindow(ulX, ulY, width, lineasLeidas, 5);
|
| 456 |
|
| 457 |
if (nBands >= 6) |
| 458 |
bufband6 = grf.getWindow(ulX, ulY, width, lineasLeidas, 6);
|
| 459 |
} |
| 460 |
|
| 461 |
/**
|
| 462 |
* Lectura de bandas llamando al objeto cliente para que nos cargue el buffer
|
| 463 |
* @param width Ancho de la imagen
|
| 464 |
* @param height Alto de la imagen
|
| 465 |
*/
|
| 466 |
private void readBands(int width, int height) { |
| 467 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 468 |
dataBuffer = dataWriter.readARGBData(width, height, 0);
|
| 469 |
if(dataType == IBuffer.TYPE_BYTE) {
|
| 470 |
byte[][] b = dataWriter.readByteData(width, height); |
| 471 |
|
| 472 |
} |
| 473 |
} |
| 474 |
|
| 475 |
/**
|
| 476 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 477 |
* compresor necesita que le sirvan m?s datos.
|
| 478 |
*/
|
| 479 |
public void loadBuffer() { |
| 480 |
int lineasLeidas = 0; |
| 481 |
|
| 482 |
//si se leen bloques completos lineasLeidas es == al tama?o de bloque sino
|
| 483 |
//es que es el ?ltimo con lo que ser? del tama?o del bloque final
|
| 484 |
if (countBlock <= nBlocks)
|
| 485 |
lineasLeidas = blockSizeRead; |
| 486 |
else
|
| 487 |
lineasLeidas = lineasBloqueFinal; |
| 488 |
|
| 489 |
//Leemos un bloque nuevo cuando se han procesado todas las l?neas del anterior
|
| 490 |
if ((nNextLine % blockSizeRead) == 0) { |
| 491 |
if (grf != null) |
| 492 |
readBandsGRFile(ulX, ulY + nNextLine, width, lineasLeidas); |
| 493 |
else if (dataWriter != null) { |
| 494 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 495 |
dataBuffer = dataWriter.readARGBData(width, lineasLeidas, 0);
|
| 496 |
if(dataType == IBuffer.TYPE_BYTE)
|
| 497 |
byteBuffer = dataWriter.readByteData(width, lineasLeidas); |
| 498 |
} |
| 499 |
|
| 500 |
countLine = 0;
|
| 501 |
countBlock++; |
| 502 |
} |
| 503 |
|
| 504 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 505 |
loadBufferFromImageDataType(dataBuffer); |
| 506 |
if(dataType == IBuffer.TYPE_BYTE)
|
| 507 |
loadBufferFromByteDataType(byteBuffer); |
| 508 |
|
| 509 |
/* for (int iBand = 0; iBand < this.nBands; iBand++) {
|
| 510 |
for (int pos = 0; pos < width; pos++) {
|
| 511 |
if (grf != null && write) {
|
| 512 |
if (iBand == 0)
|
| 513 |
compressclient.buffer[pos + (width * iBand)] =
|
| 514 |
bufband1[pos + (width * countLine)];
|
| 515 |
|
| 516 |
if (iBand == 1)
|
| 517 |
compressclient.buffer[pos + (width * iBand)] =
|
| 518 |
bufband2[pos + (width * countLine)];
|
| 519 |
|
| 520 |
if (iBand == 2)
|
| 521 |
compressclient.buffer[pos + (width * iBand)] =
|
| 522 |
bufband3[pos + (width * countLine)];
|
| 523 |
|
| 524 |
if (iBand == 3)
|
| 525 |
compressclient.buffer[pos + (width * iBand)] =
|
| 526 |
bufband4[pos + (width * countLine)];
|
| 527 |
|
| 528 |
if (iBand == 4)
|
| 529 |
compressclient.buffer[pos + (width * iBand)] =
|
| 530 |
bufband5[pos + (width * countLine)];
|
| 531 |
|
| 532 |
if (iBand == 5)
|
| 533 |
compressclient.buffer[pos + (width * iBand)] =
|
| 534 |
bufband6[pos + (width * countLine)];
|
| 535 |
|
| 536 |
} else {
|
| 537 |
if (iBand == 0)
|
| 538 |
compressclient.buffer[pos + (width * iBand)] =
|
| 539 |
(byte) ((dataBuffer[pos + (width * countLine)] & 0xff0000) >> 16);
|
| 540 |
|
| 541 |
|
| 542 |
if (iBand == 1)
|
| 543 |
compressclient.buffer[pos + (width * iBand)] =
|
| 544 |
(byte) ((dataBuffer[pos + (width * countLine)] & 0xff00) >> 8);
|
| 545 |
|
| 546 |
|
| 547 |
if (iBand == 2)
|
| 548 |
compressclient.buffer[pos + (width * iBand)] =
|
| 549 |
(byte) (dataBuffer[pos + (width * countLine)] & 0xff);
|
| 550 |
|
| 551 |
}
|
| 552 |
|
| 553 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) {
|
| 554 |
countLine++;
|
| 555 |
}
|
| 556 |
}
|
| 557 |
}*/
|
| 558 |
} |
| 559 |
|
| 560 |
/**
|
| 561 |
* Carga el buffer de datos desde elementos de tipo entero con contenido ARGB
|
| 562 |
* @param data Array de datos enteros
|
| 563 |
*/
|
| 564 |
private void loadBufferFromImageDataType(int[] data) { |
| 565 |
for (int iBand = 0; iBand < this.nBands; iBand++) { |
| 566 |
for (int pos = 0; pos < width; pos++) { |
| 567 |
switch(iBand) {
|
| 568 |
case 0: |
| 569 |
compressclient.buffer[pos + (width * iBand)] = |
| 570 |
(byte) ((data[pos + (width * countLine)] & 0xff0000) >> 16); |
| 571 |
break;
|
| 572 |
case 1: |
| 573 |
compressclient.buffer[pos + (width * iBand)] = |
| 574 |
(byte) ((data[pos + (width * countLine)] & 0xff00) >> 8); |
| 575 |
break;
|
| 576 |
case 2: |
| 577 |
compressclient.buffer[pos + (width * iBand)] = |
| 578 |
(byte) (data[pos + (width * countLine)] & 0xff); |
| 579 |
break;
|
| 580 |
} |
| 581 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) |
| 582 |
countLine++; |
| 583 |
} |
| 584 |
} |
| 585 |
} |
| 586 |
|
| 587 |
/**
|
| 588 |
* Carga el buffer de datos a comprimir desde un buffer byte[][] donde la primera dimensi?n
|
| 589 |
* es el n?mero de bandas y la segunda los elementos en lista (Ancho X Alto)
|
| 590 |
* @param b Buffer de datos de tipo byte[][]
|
| 591 |
*/
|
| 592 |
private void loadBufferFromByteDataType(byte[][] b) { |
| 593 |
for (int iBand = 0; iBand < this.nBands; iBand++) { |
| 594 |
for (int pos = 0; pos < width; pos++) { |
| 595 |
compressclient.buffer[pos + (width * iBand)] = b[iBand][pos + (width * countLine)]; |
| 596 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) |
| 597 |
countLine++; |
| 598 |
} |
| 599 |
} |
| 600 |
} |
| 601 |
|
| 602 |
/**
|
| 603 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 604 |
* compresor actualiza el porcentaje de compresi?n
|
| 605 |
*/
|
| 606 |
public void updatePercent() { |
| 607 |
writer.setPercent(compressclient.getPercent()); |
| 608 |
//System.out.println(compressclient.getPercent() + "%");
|
| 609 |
} |
| 610 |
|
| 611 |
/**
|
| 612 |
* Obtiene el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 613 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 614 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 615 |
* de salida.
|
| 616 |
* @return True si puede escribirse y false si no puede
|
| 617 |
*/
|
| 618 |
public boolean isWrite() { |
| 619 |
return write;
|
| 620 |
} |
| 621 |
|
| 622 |
/**
|
| 623 |
* Asigna el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 624 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 625 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 626 |
* de salida.
|
| 627 |
* @param write Variable booleana. True si puede escribirse y false si no puede
|
| 628 |
*/
|
| 629 |
public void setWrite(boolean write) { |
| 630 |
this.write = write;
|
| 631 |
} |
| 632 |
|
| 633 |
} |