svn-gvsig-desktop / tags / v1_0_2_Build_907 / libraries / libCq CMS for java.old / src / org / cresques / io / ErmapperWriter.java @ 11015
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.io; |
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import java.io.IOException; |
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import org.cresques.geo.ViewPortData; |
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import org.cresques.i18n.Messages; |
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import org.cresques.io.data.WriterSupportOptions; |
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import org.cresques.px.PxRaster; |
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import es.gva.cit.jecwcompress.CompressFormat; |
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import es.gva.cit.jecwcompress.EcwException; |
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import es.gva.cit.jecwcompress.JniObject; |
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import es.gva.cit.jecwcompress.NCSEcwCompressClient; |
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import es.gva.cit.jecwcompress.ReadCallBack; |
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import es.gva.cit.jgdal.GdalRasterBand; |
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/**
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* Driver para la compresi?n en formato Ecw.
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*
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* Puede exportar un fichero desde un GeoRasterFile en cualquier formato soportado
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* por los drivers de lectura a uno en formato Ecw.
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*
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* Puede salvar a disco en formato Ecw obteniendo los datos que van siendo servidos
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* desde el cliente. Este cliente debe implementar un IDataWriter o tener un objeto
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* que lo implemente. Inicialmente le pasar? los par?metros de la imagen de salida
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* y cuando el driver comience a escribir le ir? solicitando m?s a trav?s del m?todo
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* readData de IDataWriter. El cliente ser? el que lleve el control de lo que va
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* sirviendo y lo que le queda por servir.
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class ErmapperWriter extends GeoRasterWriter { |
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static {
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String os = System.getProperties().getProperty("os.version"); |
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if (os.startsWith("2.4")){ |
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GeoRasterWriter.registerWriterExtension("ecw", ErmapperWriter.class);
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typeList.put("ecw", "Ecw"); |
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} |
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GeoRasterWriter.registerWriterExtension("jp2", ErmapperWriter.class);
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typeList.put("jp2", "Jpeg2000"); |
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} |
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public final int windowSizeX = 386; |
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public final int windowSizeY = 220; |
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public final int panelSizeX = 358; |
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public final int panelSizeY = 125; |
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public final String panelLayout = "BorderLayout"; |
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private NCSEcwCompressClient compressclient = null; |
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private Reader readerObj; |
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private double pixelSizeX; |
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private double pixelSizeY; |
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private double geoCoordOrigenX; |
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private double geoCoordOrigenY; |
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private EcwSupportOptions support = null; |
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private boolean consulta = false; |
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/**
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* Constructor para la obtenci?n de par?metros del driver.
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*/
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public ErmapperWriter(String fileName) { |
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ident = fileName.toLowerCase().substring(fileName.lastIndexOf(".") + 1); |
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driver = (String)typeList.get(ident);
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support = new EcwSupportOptions(driver);
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support.setBlockSize(blockSizeDefault); |
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support.setCompressionDefault(10);
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support.setFormatDefault(4);
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support.setWriteGeoref(true);
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consulta = true;
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} |
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/**
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* Constructor para salvar una sola imagen completa
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* @param raster PxRaster de la imagen origen
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* @param outfilename Fichero de salida
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* @param infilename Fichero de entrada
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* @param compresion Compresi?n
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*/
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public ErmapperWriter(PxRaster raster, String outFileName, String inFileName, |
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int compresion) throws EcwException, IOException { |
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ident = outFileName.toLowerCase().substring(outFileName.lastIndexOf(".") + 1); |
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driver = (String)typeList.get(ident);
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support = new EcwSupportOptions(driver);
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this.outFileName = outFileName;
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this.inFileName = inFileName;
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currentRaster = raster; |
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support.setCompressionDefault(compresion); |
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sizeWindowX = raster.getFWidth(); |
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sizeWindowY = raster.getFHeight(); |
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support.setBlockSize(currentRaster.getBlockSize()); |
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nBands = currentRaster.getBandCount(); |
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//Calculamos la georeferenciaci?n
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double maxX = currentRaster.getExtent().maxX();
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geoCoordOrigenX = currentRaster.getExtent().minX(); |
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geoCoordOrigenY = currentRaster.getExtent().maxY(); |
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double minY = currentRaster.getExtent().minY();
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double w = currentRaster.getFWidth();
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double h = currentRaster.getFHeight();
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pixelSizeX = (maxX - geoCoordOrigenX) / w; |
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pixelSizeY = (minY - geoCoordOrigenY) / h; |
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if ((sizeWindowX < 0) || (sizeWindowY < 0)) { |
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throw new IOException("Tama?o del fichero de salida erroneo."); |
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} |
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if (nBands == 1) { |
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this.support.setFormatDefault(CompressFormat.COMPRESS_UINT8);
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} else if (nBands == 3) { |
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this.support.setFormatDefault(CompressFormat.COMPRESS_RGB);
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} else {
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this.support.setFormatDefault(CompressFormat.COMPRESS_MULTI);
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} |
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init(); |
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} |
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/**
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* Constructor para la lectura de datos desde el objeto cliente a partir
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* de un viewport dado.
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* @param dataWriter Objeto que sirve datos para el escritor
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* @param vp viewport de origen
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* @param outFileName Fichero de salida
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* @param blockSize Tama?o de bloque
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* @param nBands N?mero de bandas
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* @param compresion Compresi?n
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* @throws EcwException
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* @throws IOException
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*/
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public ErmapperWriter( IDataWriter dataWriter,
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String outFileName,
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Integer blockSize,
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Integer nBands,
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ViewPortData vp, |
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Integer compresion,
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Integer outSizeX,
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Integer outSizeY) throws EcwException, IOException { |
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ident = outFileName.toLowerCase().substring(outFileName.lastIndexOf(".") + 1); |
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driver = (String)typeList.get(ident);
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support = new EcwSupportOptions(driver);
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int comp = compresion.intValue();
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if (comp <= 0) |
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comp = 1;
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if (nBands.intValue() <= 0) { |
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throw new EcwException("N?mero de bandas erroneo."); |
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} |
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if ((vp.getWidth() <= 0) || (vp.getHeight() <= 0)) { |
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throw new EcwException("Tama?o de la imagen de salida erroneo."); |
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} |
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this.outFileName = outFileName;
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this.dataWriter = dataWriter;
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this.support.setCompressionDefault(compresion.intValue());
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this.nBands = nBands.intValue();
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this.sizeWindowX = (int) vp.getWidth(); |
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this.sizeWindowY = (int) vp.getHeight(); |
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this.support.setBlockSize(blockSize.intValue());
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//Calculamos la georeferenciaci?n a partir del extend pasado por el cliente.
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double maxX = vp.getExtent().maxX();
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geoCoordOrigenX = vp.getExtent().minX(); |
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geoCoordOrigenY = vp.getExtent().maxY(); |
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double minY = vp.getExtent().minY();
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pixelSizeX = (maxX - geoCoordOrigenX) / vp.getWidth(); |
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pixelSizeY = (minY - geoCoordOrigenY) / vp.getHeight(); |
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if (pixelSizeX == 0) { |
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pixelSizeX = 1.0;
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} |
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if (pixelSizeY == 0) { |
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pixelSizeY = 1.0;
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} |
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init(); |
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} |
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/**
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* Inicializaci?n de los par?metros del compresor que ser?n obtenidos
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* de PxRaster.
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* @throws EcwException
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*/
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private void init() throws EcwException { |
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if (this.support.getCompression() == 0) { |
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this.support.setCompressionDefault(1); |
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} |
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if (compressclient == null) { |
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compressclient = new NCSEcwCompressClient();
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} |
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compressclient.setOutputFilename(outFileName); |
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compressclient.setInputFilename("");
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compressclient.setTargetCompress(this.support.getCompression());
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//compressclient.setActualCompression(this.support.getCompression());
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compressclient.setInOutSizeX(sizeWindowX); |
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compressclient.setInOutSizeY(sizeWindowY); |
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compressclient.setInputBands(nBands); |
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compressclient.setCompressFormat(this.support.getFormat());
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//System.out.println("Origen=>"+minX + " "+maxY );
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//System.out.println("Pixel Size=>"+psX+" "+psY);
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//compressclient.setDatum("UTM Zona 31N");
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//client.setProjection("WGS84");
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if (this.support.getGeoref()) { |
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compressclient.setCellIncrementX(pixelSizeX); |
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compressclient.setCellIncrementY(pixelSizeY); |
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compressclient.setOriginX(geoCoordOrigenX); |
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compressclient.setOriginY(geoCoordOrigenY); |
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} |
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compressclient.setCellSizeUnits(1);
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//System.out.println(outfilename+" "+infilename+" "+compresion+" "+sizeWindowX+" "+sizeWindowY+" "+currentRaster.getBandCount());
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//System.out.println(psX+" "+psY+" "+minX+" "+maxX);
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if (currentRaster != null) { |
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readerObj = new Reader(currentRaster.getGeoFile(), compressclient, |
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ulX, ulY, sizeWindowX, sizeWindowY, |
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this.support.getBlockSize());
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} else if (dataWriter != null) { |
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readerObj = new Reader(dataWriter, compressclient, sizeWindowX, |
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sizeWindowY, this.support.getBlockSize(),
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this.nBands);
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} |
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} |
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/**
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* A partir de un elemento que contiene una propiedad y un valor
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* lo parsea y asigna el valor a su variable.
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* @param propValue elemento con la forma propiedad=valor
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*/
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private void readProperty(String propValue) { |
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String prop = propValue.substring(0, propValue.indexOf("=")); |
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if (propValue.startsWith(prop)) {
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String value = propValue.substring(propValue.indexOf("=") + 1, |
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propValue.length()); |
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if ((value != null) && !value.equals("")) { |
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if (prop.equals("BLOCKSIZE")) { |
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this.support.setBlockSize(Integer.parseInt(value)); |
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} |
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if (prop.equals("FORMAT")) { |
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int select = 0; |
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if (value.equals("UINT8")) { |
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select = 1;
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} |
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if (value.equals("YUV")) { |
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select = 2;
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} |
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if (value.equals("MULTI")) { |
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select = 3;
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} |
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if (value.equals("RGB")) { |
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select = 4;
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} |
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this.support.setFormatDefault(select);
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} |
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if (prop.equals("GEOREF")) { |
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boolean georef = true; |
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if (value.equals("yes")) { |
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georef = true;
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} else {
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georef = false;
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} |
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this.support.setWriteGeoref(georef);
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} |
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if (prop.equals("COMPRESSION")) { |
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this.support.setCompressionDefault(Integer.parseInt(value)); |
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} |
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} |
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} |
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} |
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/**
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* Asigna propiedades al driver a partir de un vector de
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* strings donde cada elemento tiene la estructura de
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* propiedad=valor.
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* @param props Propiedades
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*/
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public void setProps(String[] props) { |
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for (int iProps = 0; iProps < props.length; iProps++) |
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readProperty(props[iProps]); |
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try {
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if (!consulta) {
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init(); |
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} |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
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* @throws IOException
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*/
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public void fileWrite() throws IOException { |
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if (currentRaster == null) { |
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throw new IOException("No se ha asignado un fichero de entrada."); |
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} |
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try {
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compressclient.NCSEcwCompressOpen(false);
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compressclient.NCSEcwCompress(readerObj); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
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* @throws IOException
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*/
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public void dataWrite() throws IOException { |
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if (dataWriter == null) { |
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throw new IOException("No se ha obtenido un objeto para la lectura valido."); |
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} |
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try {
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compressclient.NCSEcwCompressOpen(false);
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compressclient.NCSEcwCompress(readerObj); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Cierra el compresor ecw.
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*/
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public void writeClose() { |
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try {
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compressclient.NCSEcwCompressClose(); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Cancela el compresor ecw.
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*/
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public void writeCancel() { |
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try {
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if(readerObj != null) |
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readerObj.setWrite(false);
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compressclient.NCSEcwCompressCancel(); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Devuelve la configuraci?n de la ventana de dialogo
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* para las propiedades del driver de escritura de Ecw.
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* @return XML de configuraci?n del dialogo.
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*/
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public String getXMLPropertiesDialog() { |
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StringBuffer options = null; |
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options = new StringBuffer(); |
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options.append("<window sizex=\"" + this.windowSizeX + "\" sizey=\"" + |
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this.windowSizeY + "\">"); |
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options.append("<panel sizex=\"" + this.panelSizeX + "\" sizey=\"" + |
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this.panelSizeY + "\" layout=\"" + this.panelLayout + |
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"\" border=\"yes\">");
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options.append("<panel layout=\"FlowLayout\" position=\"North\" align=\"left\">");
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options.append("<label>"+Messages.getText("Block_Size_")+"</label>"); |
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options.append("<combo ident=\"BLOCKSIZE\" selected=\"" +
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this.support.getBlockSize() + "\">"); |
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for (int i = 0; i < this.support.getBlockSizeList().length; i++) |
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options.append("<elem>" + this.support.getBlockSizeList()[i] + |
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"</elem>");
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options.append("</combo>");
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/*options.append("<label>Formato:</label>");
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String sel = null;
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if (this.support.getGeoref()) {
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sel = new String("yes");
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} else {
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sel = new String("no");
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}
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options.append("<check ident=\"GEOREF\" selected=\"" + sel +
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"\" text=\"Georef Si/No\">");
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options.append("</check>");*/
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options.append("</panel>");
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options.append("<panel layout=\"FlowLayout\" position=\"South\">");
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options.append("<slider ident=\"COMPRESSION\" name=\"Nivel de Compresi?n\" sizex=\"350\" sizey=\"20\">");
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options.append("<min>" + this.support.getCompressionList()[0] + |
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"</min>");
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options.append("<max>" + this.support.getCompressionList()[1] + |
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"</max>");
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options.append("<value>" + this.support.compresionDefault + "</value>"); |
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options.append("<minorspacing>" + this.support.getCompressionList()[3] + |
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"</minorspacing>");
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options.append("<majorspacing>" + this.support.getCompressionList()[4] + |
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"</majorspacing>");
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options.append("</slider>");
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options.append("</panel>");
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options.append("</panel>");
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options.append("</window>");
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return options.toString();
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} |
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/**
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* @author Nacho Brodin <brodin_ign@gva.es>
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*
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* Opciones de escritura para el Ecw. Estas opciones son utilizadas para el
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* dialogo de propiedades de Salvar a Raster en Ecw.
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*/
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class EcwSupportOptions extends WriterSupportOptions { |
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private String[] compresionListValues = { "0", "20", "10", "1", "5" }; //min, max, valor defecto, intervalo peque?o, intervalo grande; |
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private String[] formatList = { "NONE", "UINT8", "YUV", "MULTI", "RGB" }; |
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private int formatDefault = 4; |
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private int compresionDefault = 10; |
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EcwSupportOptions(String drv) {
|
| 468 |
super(drv);
|
| 469 |
} |
| 470 |
|
| 471 |
/**
|
| 472 |
* Asigna la lista de valores de compresi?n
|
| 473 |
* @param compresion lista de valores
|
| 474 |
*/
|
| 475 |
public void setCompressionList(String[] compresion) { |
| 476 |
this.compresionListValues = compresion;
|
| 477 |
} |
| 478 |
|
| 479 |
/**
|
| 480 |
* Valor de formato seleccionado en el driver.
|
| 481 |
* 0-NONE, 1-UINT8, 2-YUV, 3-MULTI, 4-RGB
|
| 482 |
* @param i valor de formato
|
| 483 |
*/
|
| 484 |
public void setFormatDefault(int i) { |
| 485 |
this.formatDefault = i;
|
| 486 |
} |
| 487 |
|
| 488 |
/**
|
| 489 |
* Asigna el nivel de compresi?npor defecto
|
| 490 |
* @param compress Nivel de compresi?n
|
| 491 |
*/
|
| 492 |
public void setCompressionDefault(int compress) { |
| 493 |
this.compresionDefault = compress;
|
| 494 |
} |
| 495 |
|
| 496 |
/**
|
| 497 |
* Obtiene el tipo de imagen en un formato comprensible por el driver.
|
| 498 |
* @return Tipo de imagen
|
| 499 |
*/
|
| 500 |
public String getStringFormat() { |
| 501 |
return "COMPRESS_" + formatList[formatDefault]; |
| 502 |
} |
| 503 |
|
| 504 |
/**
|
| 505 |
* Obtiene la lista de los tipos de formato disponible
|
| 506 |
* @return Lista de tipos de formato
|
| 507 |
*/
|
| 508 |
public String[] getFormatList() { |
| 509 |
return formatList;
|
| 510 |
} |
| 511 |
|
| 512 |
/**
|
| 513 |
* Obtiene el tipo de formato seleccionado en el driver
|
| 514 |
* @return Tipo de formato seleccionado
|
| 515 |
*/
|
| 516 |
public int getFormat() { |
| 517 |
return formatDefault;
|
| 518 |
} |
| 519 |
|
| 520 |
/**
|
| 521 |
* Obtiene la compresion seleccionada
|
| 522 |
* @return Compresi?n seleccionada
|
| 523 |
*/
|
| 524 |
public int getCompression() { |
| 525 |
return compresionDefault;
|
| 526 |
} |
| 527 |
|
| 528 |
/**
|
| 529 |
* Obtiene la lista de los valores para la generaci?n de la barra de
|
| 530 |
* compresi?n. Son cinco valores m?nimo, m?ximo, seleccionado,
|
| 531 |
* intervalo peque?o, intervalo grande.
|
| 532 |
* @return lista de valores de compresi?n
|
| 533 |
*/
|
| 534 |
public String[] getCompressionList() { |
| 535 |
return compresionListValues;
|
| 536 |
} |
| 537 |
} |
| 538 |
} |
| 539 |
|
| 540 |
|
| 541 |
/**
|
| 542 |
* Clase que se encarga de la lectura de datos que ser?n escritos. Hereda de JniObject
|
| 543 |
* para asegurar para asegurar que el interfaz de la libreria tiene acceso a variables
|
| 544 |
* necesarias para la petici?n de datos cuando vacia el buffer. Implementa ReadCallBack
|
| 545 |
* para obligar escribir el m?todo loadBuffer encargado de servir los datos cuando el
|
| 546 |
* buffer se vacia.
|
| 547 |
*
|
| 548 |
*/
|
| 549 |
class Reader extends JniObject implements ReadCallBack { |
| 550 |
private NCSEcwCompressClient compressclient = null; |
| 551 |
private int width; |
| 552 |
private int height; |
| 553 |
private int ulX; |
| 554 |
private int ulY; |
| 555 |
private GeoRasterFile grf = null; |
| 556 |
private IDataWriter dataWriter = null; |
| 557 |
private GdalRasterBand rband = null; |
| 558 |
private int blockSizeRead = 1; //Alto del bloque leido de la imagen origen |
| 559 |
private int countLine = 1; //Contador de l?neas procesadas en cada lectura de bloque |
| 560 |
byte[][] buf = null; |
| 561 |
byte[] bufband1 = null; |
| 562 |
byte[] bufband2 = null; |
| 563 |
byte[] bufband3 = null; |
| 564 |
byte[] bufband4 = null; |
| 565 |
byte[] bufband5 = null; |
| 566 |
byte[] bufband6 = null; |
| 567 |
int[] dataBuffer = null; |
| 568 |
private int lineasBloqueFinal = 0; //N?mero de l?neas leidas del bloque final |
| 569 |
private int nBlocks = 0; //N?mero de bloques completos |
| 570 |
private int countBlock = 1; //Contador de bloques completos procesados |
| 571 |
private int nBands = 0; |
| 572 |
private boolean write = true; //Cuando est? a true se puede escribir en la imagen de salida. Si est? a false el proceso es interrumpido |
| 573 |
|
| 574 |
/**
|
| 575 |
* Constructor para la escritura de un fichero desde un GeoRasterFile
|
| 576 |
* @param grf GeorasterFile del fichero de origen
|
| 577 |
* @param compressclient Objeto que representa al compresor ecw
|
| 578 |
* @param ulx Coordenada X de la esquina superior izquierda
|
| 579 |
* @param uly Coordenada Y de la esquina superior izquierda
|
| 580 |
* @param width Ancho de la imagen
|
| 581 |
* @param height Alto de la imagen
|
| 582 |
* @param blockSizeRead Altura del bloque en la lectura
|
| 583 |
*/
|
| 584 |
public Reader(GeoRasterFile grf, NCSEcwCompressClient compressclient, |
| 585 |
int ulx, int uly, int width, int height, int blockSizeRead) { |
| 586 |
this.compressclient = compressclient;
|
| 587 |
this.width = width;
|
| 588 |
this.height = height;
|
| 589 |
this.ulX = ulx;
|
| 590 |
this.ulY = uly;
|
| 591 |
this.grf = grf;
|
| 592 |
this.nBands = grf.getBandCount();
|
| 593 |
|
| 594 |
if (blockSizeRead != 0) { |
| 595 |
this.blockSizeRead = blockSizeRead;
|
| 596 |
} |
| 597 |
|
| 598 |
nBlocks = (int) (height / this.blockSizeRead); |
| 599 |
lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
|
| 600 |
|
| 601 |
} |
| 602 |
|
| 603 |
/**
|
| 604 |
* Constructor para que los datos sean servidos desde el cliente a trav?s de un
|
| 605 |
* IDataWriter.
|
| 606 |
* @param dataWriter Objeto servidor de datos del driver
|
| 607 |
* @param compressclient Objeto que representa al compresor ecw
|
| 608 |
* @param width Ancho de la imagen
|
| 609 |
* @param height Alto de la imagen
|
| 610 |
* @param blockSizeRead Altura del bloque en la lectura
|
| 611 |
* @param nBands N?mero de bandas
|
| 612 |
*/
|
| 613 |
public Reader(IDataWriter dataWriter, NCSEcwCompressClient compressclient, |
| 614 |
int width, int height, int blockSizeRead, int nBands) { |
| 615 |
this.compressclient = compressclient;
|
| 616 |
this.width = width;
|
| 617 |
this.height = height;
|
| 618 |
this.dataWriter = dataWriter;
|
| 619 |
this.nBands = nBands;
|
| 620 |
|
| 621 |
if (blockSizeRead != 0) { |
| 622 |
this.blockSizeRead = blockSizeRead;
|
| 623 |
} |
| 624 |
|
| 625 |
nBlocks = (int) (height / this.blockSizeRead); |
| 626 |
lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
|
| 627 |
|
| 628 |
} |
| 629 |
|
| 630 |
/**
|
| 631 |
* Lectura de bandas desde un GeoRasterFile
|
| 632 |
* @param ulX Coordenada X de la esquina superior izquierda
|
| 633 |
* @param ulY Coordenada Y de la esquina superior izquierda
|
| 634 |
* @param width Ancho de la imagen
|
| 635 |
* @param lineasLeidas N?mero de l?neas a leer del origen
|
| 636 |
*/
|
| 637 |
private void readBandsGRFile(int ulX, int ulY, int width, int lineasLeidas) { |
| 638 |
if (nBands >= 1) { |
| 639 |
bufband1 = grf.getWindow(ulX, ulY, width, lineasLeidas, 1);
|
| 640 |
} |
| 641 |
|
| 642 |
if (nBands >= 2) { |
| 643 |
bufband2 = grf.getWindow(ulX, ulY, width, lineasLeidas, 2);
|
| 644 |
} |
| 645 |
|
| 646 |
if (nBands >= 3) { |
| 647 |
bufband3 = grf.getWindow(ulX, ulY, width, lineasLeidas, 3);
|
| 648 |
} |
| 649 |
|
| 650 |
if (nBands >= 4) { |
| 651 |
bufband4 = grf.getWindow(ulX, ulY, width, lineasLeidas, 4);
|
| 652 |
} |
| 653 |
|
| 654 |
if (nBands >= 5) { |
| 655 |
bufband5 = grf.getWindow(ulX, ulY, width, lineasLeidas, 5);
|
| 656 |
} |
| 657 |
|
| 658 |
if (nBands >= 6) { |
| 659 |
bufband6 = grf.getWindow(ulX, ulY, width, lineasLeidas, 6);
|
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
/**
|
| 664 |
* Lectura de bandas llamando al objeto cliente para que nos cargue el buffer
|
| 665 |
* @param width Ancho de la imagen
|
| 666 |
* @param height Alto de la imagen
|
| 667 |
*/
|
| 668 |
private void readBands(int width, int height) { |
| 669 |
dataBuffer = dataWriter.readData(width, height, 0);
|
| 670 |
} |
| 671 |
|
| 672 |
/**
|
| 673 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 674 |
* compresor necesita que le sirvan m?s datos.
|
| 675 |
*/
|
| 676 |
public void loadBuffer() { |
| 677 |
int lineasLeidas = 0; |
| 678 |
|
| 679 |
//si se leen bloques completos lineasLeidas es == al tama?o de bloque sino
|
| 680 |
//es que es el ?ltimo con lo que ser? del tama?o del bloque final
|
| 681 |
if (countBlock <= nBlocks) {
|
| 682 |
lineasLeidas = blockSizeRead; |
| 683 |
} else {
|
| 684 |
lineasLeidas = lineasBloqueFinal; |
| 685 |
} |
| 686 |
|
| 687 |
//Leemos un bloque nuevo cuando se han procesado todas las l?neas del anterior
|
| 688 |
if ((nNextLine % blockSizeRead) == 0) { |
| 689 |
if (grf != null) { |
| 690 |
readBandsGRFile(ulX, ulY + nNextLine, width, lineasLeidas); |
| 691 |
} else if (dataWriter != null) { |
| 692 |
readBands(width, lineasLeidas); |
| 693 |
} |
| 694 |
|
| 695 |
countLine = 0;
|
| 696 |
countBlock++; |
| 697 |
} |
| 698 |
|
| 699 |
for (int iBand = 0; iBand < this.nBands; iBand++) { |
| 700 |
for (int pos = 0; pos < width; pos++) { |
| 701 |
if (grf != null && write) { |
| 702 |
if (iBand == 0) { |
| 703 |
compressclient.buffer[pos + (width * iBand)] = bufband1[pos + |
| 704 |
(width * countLine)]; |
| 705 |
} |
| 706 |
|
| 707 |
if (iBand == 1) { |
| 708 |
compressclient.buffer[pos + (width * iBand)] = bufband2[pos + |
| 709 |
(width * countLine)]; |
| 710 |
} |
| 711 |
|
| 712 |
if (iBand == 2) { |
| 713 |
compressclient.buffer[pos + (width * iBand)] = bufband3[pos + |
| 714 |
(width * countLine)]; |
| 715 |
} |
| 716 |
|
| 717 |
if (iBand == 3) { |
| 718 |
compressclient.buffer[pos + (width * iBand)] = bufband4[pos + |
| 719 |
(width * countLine)]; |
| 720 |
} |
| 721 |
|
| 722 |
if (iBand == 4) { |
| 723 |
compressclient.buffer[pos + (width * iBand)] = bufband5[pos + |
| 724 |
(width * countLine)]; |
| 725 |
} |
| 726 |
|
| 727 |
if (iBand == 5) { |
| 728 |
compressclient.buffer[pos + (width * iBand)] = bufband6[pos + |
| 729 |
(width * countLine)]; |
| 730 |
} |
| 731 |
} else {
|
| 732 |
if (iBand == 0) { |
| 733 |
compressclient.buffer[pos + (width * iBand)] = (byte) ((dataBuffer[pos +
|
| 734 |
(width * countLine)] & |
| 735 |
0xff0000) >> 16); |
| 736 |
} |
| 737 |
|
| 738 |
if (iBand == 1) { |
| 739 |
compressclient.buffer[pos + (width * iBand)] = (byte) ((dataBuffer[pos +
|
| 740 |
(width * countLine)] & |
| 741 |
0xff00) >> 8); |
| 742 |
} |
| 743 |
|
| 744 |
if (iBand == 2) { |
| 745 |
compressclient.buffer[pos + (width * iBand)] = (byte) (dataBuffer[pos +
|
| 746 |
(width * countLine)] & |
| 747 |
0xff);
|
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) { |
| 752 |
countLine++; |
| 753 |
} |
| 754 |
} |
| 755 |
} |
| 756 |
} |
| 757 |
|
| 758 |
/**
|
| 759 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 760 |
* compresor actualiza el porcentaje de compresi?n
|
| 761 |
*/
|
| 762 |
public void updatePercent() { |
| 763 |
System.out.println(compressclient.getPercent() + "%"); |
| 764 |
} |
| 765 |
|
| 766 |
/**
|
| 767 |
* Obtiene el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 768 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 769 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 770 |
* de salida.
|
| 771 |
* @return True si puede escribirse y false si no puede
|
| 772 |
*/
|
| 773 |
public boolean isWrite() { |
| 774 |
return write;
|
| 775 |
} |
| 776 |
|
| 777 |
/**
|
| 778 |
* Asigna el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 779 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 780 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 781 |
* de salida.
|
| 782 |
* @param write Variable booleana. True si puede escribirse y false si no puede
|
| 783 |
*/
|
| 784 |
public void setWrite(boolean write) { |
| 785 |
this.write = write;
|
| 786 |
} |
| 787 |
|
| 788 |
} |