root / trunk / libraries / libRaster / src / org / gvsig / raster / buffer / cache / PageBuffer.java @ 11424
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1 | 11074 | nacho | |
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2 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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3 | *
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4 | * Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | */
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20 | package org.gvsig.raster.buffer.cache; |
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21 | |||
22 | import java.io.IOException; |
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23 | |||
24 | 11113 | nacho | import org.gvsig.raster.RasterLibrary; |
25 | 11074 | nacho | import org.gvsig.raster.buffer.IBand; |
26 | import org.gvsig.raster.dataset.IBuffer; |
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27 | import org.gvsig.raster.util.Histogram; |
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28 | import org.gvsig.raster.util.HistogramException; |
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29 | 11424 | nacho | import org.gvsig.raster.util.IHistogramable; |
30 | 11074 | nacho | |
31 | /**
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32 | * Esta clase representa una p?gina de cache.Cada p?gina de cach? est? compuesta por
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33 | * varios objetos PageBandBuffer donde cada uno es una p?gina que corresponde a una
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34 | * banda de raster cacheada.
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35 | *
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36 | * @author Nacho Brodin (nachobrodin@gmail.com)
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37 | *
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38 | */
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39 | 11082 | bsanchez | public class PageBuffer implements IBuffer { |
40 | 11424 | nacho | public static final int CANCEL_HISTOGRAM = IHistogramable.CANCEL_HISTOGRAM; |
41 | private boolean[] cancel = new boolean[1]; |
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42 | 11074 | nacho | |
43 | 11082 | bsanchez | private PageBandBuffer[] pageBandBuffer = null; |
44 | |||
45 | private int percent = 0; |
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46 | 11074 | nacho | |
47 | /**
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48 | * Constructor
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49 | * @param dataType
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50 | * @param width
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51 | * @param height
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52 | * @param bandNr
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53 | * @param malloc
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54 | */
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55 | public PageBuffer(int dataType, int width, int height, int bandNr, boolean malloc, int nHddPags){ |
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56 | pageBandBuffer = new PageBandBuffer[bandNr];
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57 | for (int i = 0; i < pageBandBuffer.length; i++) |
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58 | pageBandBuffer[i] = new PageBandBuffer(dataType, width, height, 1, malloc, i); |
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59 | } |
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60 | |||
61 | /*
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62 | * (non-Javadoc)
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63 | * @see org.gvsig.raster.driver.IBuffer#isBandSwitchable()
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64 | */
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65 | public boolean isBandSwitchable(){ |
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66 | return false; |
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67 | } |
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68 | |||
69 | /**
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70 | * Asigna la lista de paginas de disco
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71 | * @param hddList Lista de p?ginas de disco
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72 | */
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73 | public void setHddPages(HddPage[] hddList){ |
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74 | for (int i = 0; i < pageBandBuffer.length; i++) |
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75 | pageBandBuffer[i].setHddPages(hddList); |
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76 | } |
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77 | |||
78 | /**
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79 | * Carga una p?gina especificada en el par?metro nPag con los datos necesarios.
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80 | * Para esto recorre todas las bandas de la p?gina llamando al load de cada una.
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81 | *
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82 | * @param nPag N?mero de p?gina a cargar
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83 | */
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84 | public void loadPage(int nPag){ |
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85 | for (int i = 0; i < pageBandBuffer.length; i++) |
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86 | pageBandBuffer[i].loadPage(nPag); |
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87 | } |
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88 | |||
89 | /**
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90 | * Salva una p?gina especificada en el par?metro nPag a disco.
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91 | * Para esto recorre todas las bandas de la p?gina llamando al save de cada una.
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92 | *
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93 | * @param nPag N?mero de p?gina a salvar
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94 | * @throws IOException
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95 | */
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96 | public void savePage(int nPag) throws IOException{ |
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97 | for (int i = 0; i < pageBandBuffer.length; i++) |
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98 | pageBandBuffer[i].savePage(nPag); |
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99 | } |
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100 | |||
101 | public void assign(int band, byte value) { |
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102 | pageBandBuffer[band].assign(0, value);
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103 | } |
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104 | |||
105 | public void assign(int band, short value) { |
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106 | pageBandBuffer[band].assign(0, value);
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107 | } |
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108 | |||
109 | public void assign(int band, int value) { |
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110 | pageBandBuffer[band].assign(0, value);
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111 | } |
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112 | |||
113 | public void assign(int band, float value) { |
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114 | pageBandBuffer[band].assign(0, value);
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115 | } |
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116 | |||
117 | public void assign(int band, double value) { |
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118 | pageBandBuffer[band].assign(0, value);
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119 | } |
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120 | |||
121 | public void assignBand(int nBand, IBand band) { |
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122 | } |
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123 | |||
124 | public void assignBandToNotValid(int iBand) { |
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125 | } |
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126 | |||
127 | public IBuffer cloneBuffer() {
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128 | return null; |
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129 | } |
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130 | |||
131 | public void copyBand(int nBand, IBand band) { |
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132 | } |
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133 | |||
134 | public IBand createBand(byte defaultValue) { |
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135 | return null; |
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136 | } |
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137 | |||
138 | public IBand getBand(int nBand) { |
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139 | return null; |
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140 | } |
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141 | |||
142 | public IBuffer getBandBuffer(int nBand) { |
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143 | return null; |
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144 | } |
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145 | |||
146 | public int getBandCount() { |
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147 | return pageBandBuffer[0].getBandCount(); |
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148 | } |
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149 | |||
150 | public int getDataType() { |
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151 | return pageBandBuffer[0].getDataType(); |
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152 | } |
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153 | |||
154 | public void setDataType(int dataType) { |
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155 | |||
156 | } |
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157 | |||
158 | public int getHeight() { |
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159 | return pageBandBuffer[0].getHeight(); |
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160 | } |
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161 | |||
162 | public int getWidth() { |
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163 | return pageBandBuffer[0].getWidth(); |
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164 | } |
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165 | |||
166 | |||
167 | |||
168 | public byte getByteNoDataValue() { |
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169 | return pageBandBuffer[0].getByteNoDataValue(); |
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170 | } |
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171 | |||
172 | public float getFloatNoDataValue() { |
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173 | return pageBandBuffer[0].getFloatNoDataValue(); |
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174 | } |
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175 | |||
176 | public int getIntNoDataValue() { |
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177 | return pageBandBuffer[0].getIntNoDataValue(); |
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178 | } |
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179 | |||
180 | public double getNoDataValue() { |
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181 | return pageBandBuffer[0].getNoDataValue(); |
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182 | } |
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183 | |||
184 | public double getNotValidValue() { |
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185 | return pageBandBuffer[0].getNotValidValue(); |
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186 | } |
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187 | |||
188 | public short getShortNoDataValue() { |
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189 | return pageBandBuffer[0].getShortNoDataValue(); |
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190 | } |
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191 | |||
192 | |||
193 | |||
194 | public byte getElemByte(int line, int col, int band) { |
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195 | return pageBandBuffer[band].getElemByte(line, col, 0); |
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196 | } |
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197 | |||
198 | public short getElemShort(int line, int col, int band) { |
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199 | return pageBandBuffer[band].getElemShort(line, col, 0); |
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200 | } |
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201 | |||
202 | public int getElemInt(int line, int col, int band) { |
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203 | return pageBandBuffer[band].getElemInt(line, col, 0); |
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204 | } |
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205 | |||
206 | public float getElemFloat(int line, int col, int band) { |
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207 | return pageBandBuffer[band].getElemFloat(line, col, 0); |
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208 | } |
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209 | |||
210 | public double getElemDouble(int line, int col, int band) { |
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211 | return pageBandBuffer[band].getElemDouble(line, col, 0); |
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212 | } |
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213 | |||
214 | |||
215 | |||
216 | |||
217 | public void getElemByte(int line, int col, byte[] data) { |
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218 | for (int i = 0; i < pageBandBuffer.length; i++) |
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219 | data[i] = pageBandBuffer[i].getElemByte(line, col, 0);
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220 | } |
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221 | |||
222 | public void getElemShort(int line, int col, short[] data) { |
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223 | for (int i = 0; i < pageBandBuffer.length; i++) |
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224 | data[i] = pageBandBuffer[i].getElemShort(line, col, 0);
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225 | } |
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226 | |||
227 | public void getElemInt(int line, int col, int[] data) { |
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228 | for (int i = 0; i < pageBandBuffer.length; i++) |
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229 | data[i] = pageBandBuffer[i].getElemInt(line, col, 0);
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230 | } |
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231 | |||
232 | public void getElemFloat(int line, int col, float[] data) { |
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233 | for (int i = 0; i < pageBandBuffer.length; i++) |
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234 | data[i] = pageBandBuffer[i].getElemFloat(line, col, 0);
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235 | } |
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236 | |||
237 | public void getElemDouble(int line, int col, double[] data) { |
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238 | for (int i = 0; i < pageBandBuffer.length; i++) |
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239 | data[i] = pageBandBuffer[i].getElemDouble(line, col, 0);
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240 | } |
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241 | |||
242 | |||
243 | public byte[][] getLineByte(int line) { |
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244 | byte[][] b = new byte[pageBandBuffer.length][]; |
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245 | for (int i = 0; i < pageBandBuffer.length; i++) |
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246 | b[i] = pageBandBuffer[i].getLineByte(line)[0];
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247 | return b;
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248 | } |
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249 | |||
250 | public double[][] getLineDouble(int line) { |
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251 | double[][] d = new double[pageBandBuffer.length][]; |
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252 | for (int i = 0; i < pageBandBuffer.length; i++) |
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253 | d[i] = pageBandBuffer[i].getLineDouble(line)[0];
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254 | return d;
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255 | } |
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256 | |||
257 | public float[][] getLineFloat(int line) { |
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258 | float[][] f = new float[pageBandBuffer.length][]; |
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259 | for (int i = 0; i < pageBandBuffer.length; i++) |
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260 | f[i] = pageBandBuffer[i].getLineFloat(line)[0];
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261 | return f;
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262 | } |
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263 | |||
264 | public int[][] getLineInt(int line) { |
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265 | int[][] in = new int[pageBandBuffer.length][]; |
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266 | for (int i = 0; i < pageBandBuffer.length; i++) |
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267 | in[i] = pageBandBuffer[i].getLineInt(line)[0];
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268 | return in;
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269 | } |
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270 | |||
271 | public short[][] getLineShort(int line) { |
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272 | short[][] s = new short[pageBandBuffer.length][]; |
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273 | for (int i = 0; i < pageBandBuffer.length; i++) |
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274 | s[i] = pageBandBuffer[i].getLineShort(line)[0];
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275 | return s;
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276 | } |
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277 | |||
278 | |||
279 | |||
280 | public byte[] getLineFromBandByte(int line, int band) { |
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281 | return pageBandBuffer[band].getLineFromBandByte(line, 0); |
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282 | } |
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283 | |||
284 | public double[] getLineFromBandDouble(int line, int band) { |
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285 | return pageBandBuffer[band].getLineFromBandDouble(line, 0); |
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286 | } |
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287 | |||
288 | public float[] getLineFromBandFloat(int line, int band) { |
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289 | return pageBandBuffer[band].getLineFromBandFloat(line, 0); |
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290 | } |
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291 | |||
292 | public int[] getLineFromBandInt(int line, int band) { |
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293 | return pageBandBuffer[band].getLineFromBandInt(line, 0); |
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294 | } |
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295 | |||
296 | public short[] getLineFromBandShort(int line, int band) { |
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297 | return pageBandBuffer[band].getLineFromBandShort(line, 0); |
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298 | } |
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299 | |||
300 | |||
301 | |||
302 | |||
303 | public void interchangeBands(int band1, int band2) { |
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304 | } |
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305 | |||
306 | public void mallocOneBand(int dataType, int width, int height, int band) { |
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307 | } |
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308 | |||
309 | public void replicateBand(int orig, int dest) { |
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310 | } |
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311 | |||
312 | |||
313 | |||
314 | public void setElem(int line, int col, int band, byte data) { |
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315 | pageBandBuffer[band].setElem(line, col, 0, data);
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316 | } |
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317 | |||
318 | public void setElem(int line, int col, int band, short data) { |
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319 | pageBandBuffer[band].setElem(line, col, 0, data);
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320 | } |
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321 | |||
322 | public void setElem(int line, int col, int band, int data) { |
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323 | pageBandBuffer[band].setElem(line, col, 0, data);
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324 | } |
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325 | |||
326 | public void setElem(int line, int col, int band, float data) { |
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327 | pageBandBuffer[band].setElem(line, col, 0, data);
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328 | } |
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329 | |||
330 | public void setElem(int line, int col, int band, double data) { |
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331 | pageBandBuffer[band].setElem(line, col, 0, data);
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332 | } |
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333 | |||
334 | |||
335 | |||
336 | public void setElemByte(int line, int col, byte[] data) { |
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337 | byte[] b = new byte[1]; |
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338 | for (int i = 0; i < pageBandBuffer.length; i++) { |
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339 | b[0] = data[i];
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340 | pageBandBuffer[i].setElemByte(line, col, b); |
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341 | } |
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342 | } |
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343 | |||
344 | public void setElemDouble(int line, int col, double[] data) { |
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345 | double[] b = new double[1]; |
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346 | for (int i = 0; i < pageBandBuffer.length; i++) { |
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347 | b[0] = data[i];
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348 | pageBandBuffer[i].setElemDouble(line, col, b); |
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349 | } |
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350 | } |
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351 | |||
352 | public void setElemFloat(int line, int col, float[] data) { |
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353 | float[] b = new float[1]; |
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354 | for (int i = 0; i < pageBandBuffer.length; i++) { |
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355 | b[0] = data[i];
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356 | pageBandBuffer[i].setElemFloat(line, col, b); |
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357 | } |
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358 | } |
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359 | |||
360 | public void setElemInt(int line, int col, int[] data) { |
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361 | int[] b = new int[1]; |
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362 | for (int i = 0; i < pageBandBuffer.length; i++) { |
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363 | b[0] = data[i];
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364 | pageBandBuffer[i].setElemInt(line, col, b); |
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365 | } |
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366 | } |
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367 | |||
368 | public void setElemShort(int line, int col, short[] data) { |
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369 | short[] b = new short[1]; |
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370 | for (int i = 0; i < pageBandBuffer.length; i++) { |
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371 | b[0] = data[i];
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372 | pageBandBuffer[i].setElemShort(line, col, b); |
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373 | } |
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374 | } |
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375 | |||
376 | |||
377 | |||
378 | public void setLineByte(byte[][] data, int line) { |
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379 | } |
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380 | |||
381 | public void setLineDouble(double[][] data, int line) { |
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382 | } |
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383 | |||
384 | public void setLineFloat(float[][] data, int line) { |
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385 | } |
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386 | |||
387 | public void setLineInBandByte(byte[] data, int line, int band) { |
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388 | } |
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389 | |||
390 | public void setLineInBandDouble(double[] data, int line, int band) { |
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391 | } |
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392 | |||
393 | public void setLineInBandFloat(float[] data, int line, int band) { |
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394 | } |
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395 | |||
396 | public void setLineInBandInt(int[] data, int line, int band) { |
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397 | } |
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398 | |||
399 | public void setLineInBandShort(short[] data, int line, int band) { |
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400 | } |
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401 | |||
402 | public void setLineInt(int[][] data, int line) { |
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403 | } |
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404 | |||
405 | public void setLineShort(short[][] data, int line) { |
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406 | } |
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407 | |||
408 | public void setNoDataValue(double nd) { |
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409 | } |
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410 | |||
411 | public void setNotValidValue(double value) { |
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412 | } |
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413 | |||
414 | public void switchBands(int[] bands) { |
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415 | } |
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416 | |||
417 | 11181 | bsanchez | /**
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418 | * Calcula el m?nimo y el m?ximo del histograma previamente.
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419 | * @return double[] con el m?nimo y el m?ximo.
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420 | */
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421 | private double[] getLimits() { |
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422 | 11219 | bsanchez | double max = Double.NEGATIVE_INFINITY; |
423 | 11181 | bsanchez | double min = Double.MAX_VALUE; |
424 | double value = 0; |
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425 | |||
426 | switch (getDataType()) {
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427 | case IBuffer.TYPE_BYTE:
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428 | for (int i = 0; i < getBandCount(); i++) |
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429 | for (int r = 0; r < getHeight(); r++) |
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430 | for (int c = 0; c < getWidth(); c++) { |
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431 | value = (double) (getElemByte(r, c, i) & 0xff); |
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432 | if (value > max) max = value;
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433 | if (value < min) min = value;
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434 | } |
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435 | break;
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436 | case IBuffer.TYPE_SHORT:
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437 | for (int i = 0; i < getBandCount(); i++) |
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438 | for (int r = 0; r < getHeight(); r++) |
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439 | for (int c = 0; c < getWidth(); c++) { |
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440 | value = (double) (getElemShort(r, c, i) & 0xffff); |
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441 | if (value > max) max = value;
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442 | if (value < min) min = value;
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443 | } |
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444 | break;
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445 | case IBuffer.TYPE_INT:
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446 | for (int i = 0; i < getBandCount(); i++) |
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447 | for (int r = 0; r < getHeight(); r++) |
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448 | for (int c = 0; c < getWidth(); c++) { |
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449 | value = (double) (getElemInt(r, c, i) & 0xffffffff); |
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450 | if (value > max) max = value;
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451 | if (value < min) min = value;
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452 | } |
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453 | break;
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454 | case IBuffer.TYPE_FLOAT:
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455 | for (int i = 0; i < getBandCount(); i++) |
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456 | for (int r = 0; r < getHeight(); r++) |
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457 | for (int c = 0; c < getWidth(); c++) { |
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458 | value = (double) getElemFloat(r, c, i);
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459 | if (value > max) max = value;
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460 | if (value < min) min = value;
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461 | } |
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462 | break;
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463 | case IBuffer.TYPE_DOUBLE:
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464 | for (int i = 0; i < getBandCount(); i++) |
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465 | for (int r = 0; r < getHeight(); r++) |
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466 | for (int c = 0; c < getWidth(); c++) { |
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467 | value = getElemDouble(r, c, i); |
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468 | if (value > max) max = value;
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469 | if (value < min) min = value;
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470 | } |
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471 | break;
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472 | } |
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473 | double[] values = new double[2]; |
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474 | values[0] = min;
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475 | values[1] = max;
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476 | return values;
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477 | } |
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478 | |||
479 | /*
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480 | * (non-Javadoc)
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481 | * @see org.gvsig.raster.driver.datasetproperties.IHistogramable#getHistogram()
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482 | */
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483 | 11074 | nacho | public Histogram getHistogram() throws HistogramException { |
484 | percent = 0;
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485 | 11113 | nacho | Histogram hist = null;
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486 | 11181 | bsanchez | double[] limits = getLimits(); |
487 | |||
488 | 11113 | nacho | if (getDataType() == IBuffer.TYPE_BYTE)
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489 | 11181 | bsanchez | hist = new Histogram(getBandCount(), 255, limits[0], limits[1]); |
490 | 11113 | nacho | else
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491 | 11181 | bsanchez | hist = new Histogram(getBandCount(), RasterLibrary.defaultNumberOfClasses, limits[0], limits[1]); |
492 | 11113 | nacho | |
493 | for (int iBand = 0; iBand < getBandCount(); iBand++) { |
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494 | for (int row = 0; row < getHeight(); row++) { |
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495 | switch(getDataType()) {
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496 | case IBuffer.TYPE_BYTE:
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497 | for (int col = 0; col < getWidth(); col++) |
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498 | hist.incrementPxValue(iBand, (double)(getElemByte(row, col, iBand) & 0xff)); |
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499 | break;
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500 | case IBuffer.TYPE_SHORT:
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501 | for (int col = 0; col < getWidth(); col++) |
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502 | hist.incrementPxValue(iBand, (double)(getElemShort(row, col, iBand) & 0xffff)); |
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503 | break;
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504 | case IBuffer.TYPE_INT:
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||
505 | for (int col = 0; col < getWidth(); col++) |
||
506 | hist.incrementPxValue(iBand, (double)(getElemInt(row, col, iBand) & 0xffffffff)); |
||
507 | break;
|
||
508 | case IBuffer.TYPE_FLOAT:
|
||
509 | for (int col = 0; col < getWidth(); col++) |
||
510 | hist.incrementPxValue(iBand, (double)getElemFloat(row, col, iBand));
|
||
511 | break;
|
||
512 | case IBuffer.TYPE_DOUBLE:
|
||
513 | for (int col = 0; col < getWidth(); col++) |
||
514 | hist.incrementPxValue(iBand, getElemDouble(row, col, iBand)); |
||
515 | break;
|
||
516 | } |
||
517 | |||
518 | 11424 | nacho | if (isCanceled(CANCEL_HISTOGRAM))
|
519 | 11113 | nacho | return null; |
520 | percent = ((iBand*getHeight() + row) * 100) /(getHeight() * getBandCount());
|
||
521 | 11082 | bsanchez | } |
522 | 11074 | nacho | } |
523 | 11082 | bsanchez | percent = 100;
|
524 | 11074 | nacho | return hist;
|
525 | } |
||
526 | |||
527 | /*
|
||
528 | * (non-Javadoc)
|
||
529 | 11082 | bsanchez | * @see org.gvsig.raster.util.IHistogramable#resetPercent()
|
530 | 11074 | nacho | */
|
531 | 11082 | bsanchez | public void resetPercent() { |
532 | percent = 0;
|
||
533 | } |
||
534 | |||
535 | /*
|
||
536 | * (non-Javadoc)
|
||
537 | * @see org.gvsig.raster.util.IHistogramable#getPercent()
|
||
538 | */
|
||
539 | 11074 | nacho | public int getPercent() { |
540 | return percent;
|
||
541 | } |
||
542 | 11081 | nacho | |
543 | 11082 | bsanchez | /*
|
544 | * (non-Javadoc)
|
||
545 | * @see org.gvsig.raster.util.ICancellable#isCanceled()
|
||
546 | */
|
||
547 | 11424 | nacho | public boolean isCanceled(int process) { |
548 | if(process == CANCEL_HISTOGRAM)
|
||
549 | return cancel[0]; |
||
550 | return false; |
||
551 | 11081 | nacho | } |
552 | |||
553 | 11082 | bsanchez | /*
|
554 | * (non-Javadoc)
|
||
555 | * @see org.gvsig.raster.util.ICancellable#setCanceled(boolean)
|
||
556 | */
|
||
557 | 11424 | nacho | public void setCanceled(boolean value, int process) { |
558 | if(process == CANCEL_HISTOGRAM || process == 0) |
||
559 | cancel[0] = value;
|
||
560 | 11081 | nacho | } |
561 | 11074 | nacho | } |