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1
51 package org.apache.fop.image;
52
53 import java.net.URL  ;
55 import java.io.InputStream ;
56
57 import java.awt.image.ColorModel ;
59 import java.awt.image.IndexColorModel ;
60 import java.awt.image.BufferedImage ;
61
62 import javax.media.jai.JAI;
64 import javax.media.jai.RenderedOp;
65 import com.sun.media.jai.codec.FileCacheSeekableStream;
67 import org.apache.fop.datatypes.ColorSpace;
69 import org.apache.fop.pdf.PDFColor;
70 import org.apache.fop.image.analyser.ImageReader;
71
72
78 public class JAIImage extends AbstractFopImage {
79 public JAIImage(URL href) throws FopImageException {
80 super(href);
81 }
82
83 public JAIImage(URL href,
84 ImageReader imgReader) throws FopImageException {
85 super(href, imgReader);
86 }
87
88 protected void loadImage() throws FopImageException {
89 try {
90 InputStream inputStream = this.m_href.openStream();
91
95 com.sun.media.jai.codec.FileCacheSeekableStream seekableInput =
96 new FileCacheSeekableStream(inputStream);
97 RenderedOp imageOp = JAI.create("stream", seekableInput);
98
99 this.m_height = imageOp.getHeight();
100 this.m_width = imageOp.getWidth();
101
102 ColorModel cm = imageOp.getColorModel();
103 this.m_bitsPerPixel = 8;
104 this.m_colorSpace = new ColorSpace(ColorSpace.DEVICE_RGB);
106
107 BufferedImage imageData = imageOp.getAsBufferedImage();
108 int[] tmpMap = imageData.getRGB(0, 0, this.m_width,
109 this.m_height, null, 0,
110 this.m_width);
111
112 if (cm.hasAlpha()) {
113 int transparencyType =
114 cm.getTransparency(); if (transparencyType == java.awt.Transparency.OPAQUE) {
116 this.m_isTransparent = false;
117 } else if (transparencyType
118 == java.awt.Transparency.BITMASK) {
119 if (cm instanceof IndexColorModel ) {
120 this.m_isTransparent = false;
121 byte[] alphas =
122 new byte[((IndexColorModel )cm).getMapSize()];
123 byte[] reds =
124 new byte[((IndexColorModel )cm).getMapSize()];
125 byte[] greens =
126 new byte[((IndexColorModel )cm).getMapSize()];
127 byte[] blues =
128 new byte[((IndexColorModel )cm).getMapSize()];
129 ((IndexColorModel )cm).getAlphas(alphas);
130 ((IndexColorModel )cm).getReds(reds);
131 ((IndexColorModel )cm).getGreens(greens);
132 ((IndexColorModel )cm).getBlues(blues);
133 for (int i = 0;
134 i < ((IndexColorModel )cm).getMapSize(); i++) {
135 if ((alphas[i] & 0xFF) == 0) {
136 this.m_isTransparent = true;
137 this.m_transparentColor =
138 new PDFColor((int)(reds[i] & 0xFF),
139 (int)(greens[i] & 0xFF),
140 (int)(blues[i] & 0xFF));
141 break;
142 }
143 }
144 } else {
145
157 this.m_isTransparent = false;
158 }
159 } else {
160 this.m_isTransparent = false;
161 }
162 } else {
163 this.m_isTransparent = false;
164 }
165
166 this.m_bitmapsSize = this.m_width * this.m_height * 3;
168 this.m_bitmaps = new byte[this.m_bitmapsSize];
169 for (int i = 0; i < this.m_height; i++) {
170 for (int j = 0; j < this.m_width; j++) {
171 int p = tmpMap[i * this.m_width + j];
172 int r = (p >> 16) & 0xFF;
173 int g = (p >> 8) & 0xFF;
174 int b = (p) & 0xFF;
175 this.m_bitmaps[3 * (i * this.m_width + j)] = (byte)(r
176 & 0xFF);
177 this.m_bitmaps[3 * (i * this.m_width + j) + 1] = (byte)(g
178 & 0xFF);
179 this.m_bitmaps[3 * (i * this.m_width + j) + 2] = (byte)(b
180 & 0xFF);
181 }
182 }
183
184 } catch (Exception ex) {
185 throw new FopImageException("Error while loading image "
186 + this.m_href.toString() + " : "
187 + ex.getClass() + " - "
188 + ex.getMessage());
189 }
190 }
191
192 }
193
194 |
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