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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.image;
// Java
import java.net.URL;
import java.io.InputStream;
import java.io.BufferedInputStream;
// AWT
import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
import java.awt.image.BufferedImage;
import java.awt.color.ColorSpace;
// JAI
import javax.media.jai.JAI;
import javax.media.jai.RenderedOp;
// Sun codec
import com.sun.media.jai.codec.FileCacheSeekableStream;
// FOP
import org.apache.fop.pdf.PDFColor;
import org.apache.fop.image.analyser.ImageReader;
/**
* FopImage object using JAI.
* @author Eric SCHAEFFER
* @see AbstractFopImage
* @see FopImage
*/
public class JAIImage extends AbstractFopImage {
public JAIImage(URL href) {
super(href);
}
public JAIImage(URL href, FopImage.ImageInfo imgReader) {
super(href, imgReader);
}
protected void loadImage() {
try {
InputStream inputStream = this.m_href.openStream();
/*
* BufferedInputStream inputStream = this.m_imageReader.getInputStream();
* inputStream.reset();
*/
com.sun.media.jai.codec.FileCacheSeekableStream seekableInput =
new FileCacheSeekableStream(inputStream);
RenderedOp imageOp = JAI.create("stream", seekableInput);
this.m_height = imageOp.getHeight();
this.m_width = imageOp.getWidth();
ColorModel cm = imageOp.getColorModel();
this.m_bitsPerPixel = 8;
// this.m_bitsPerPixel = cm.getPixelSize();
this.m_colorSpace = ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB);
BufferedImage imageData = imageOp.getAsBufferedImage();
int[] tmpMap = imageData.getRGB(0, 0, this.m_width,
this.m_height, null, 0, this.m_width);
if (cm.hasAlpha()) {
int transparencyType = cm.getTransparency(); // java.awt.Transparency. BITMASK or OPAQUE or TRANSLUCENT
if (transparencyType == java.awt.Transparency.OPAQUE) {
this.m_isTransparent = false;
} else if (transparencyType ==
java.awt.Transparency.BITMASK) {
if (cm instanceof IndexColorModel) {
this.m_isTransparent = false;
byte[] alphas = new byte[
((IndexColorModel) cm).getMapSize()];
byte[] reds = new byte[
((IndexColorModel) cm).getMapSize()];
byte[] greens = new byte[
((IndexColorModel) cm).getMapSize()];
byte[] blues = new byte[
((IndexColorModel) cm).getMapSize()];
((IndexColorModel) cm).getAlphas(alphas);
((IndexColorModel) cm).getReds(reds);
((IndexColorModel) cm).getGreens(greens);
((IndexColorModel) cm).getBlues(blues);
for (int i = 0;
i < ((IndexColorModel) cm).getMapSize();
i++) {
if ((alphas[i] & 0xFF) == 0) {
this.m_isTransparent = true;
this.m_transparentColor = new PDFColor(
(int)(reds[i] & 0xFF),
(int)(greens[i] & 0xFF),
(int)(blues[i] & 0xFF));
break;
}
}
} else {
// TRANSLUCENT
/*
* this.m_isTransparent = false;
* for (int i = 0; i < this.m_width * this.m_height; i++) {
* if (cm.getAlpha(tmpMap[i]) == 0) {
* this.m_isTransparent = true;
* this.m_transparentColor = new PDFColor(cm.getRed(tmpMap[i]), cm.getGreen(tmpMap[i]), cm.getBlue(tmpMap[i]));
* break;
* }
* }
* // or use special API...
*/
this.m_isTransparent = false;
}
} else {
this.m_isTransparent = false;
}
} else {
this.m_isTransparent = false;
}
// Should take care of the ColorSpace and bitsPerPixel
this.m_bitmapsSize = this.m_width * this.m_height * 3;
this.m_bitmaps = new byte[this.m_bitmapsSize];
for (int i = 0; i < this.m_height; i++) {
for (int j = 0; j < this.m_width; j++) {
int p = tmpMap[i * this.m_width + j];
int r = (p >> 16) & 0xFF;
int g = (p >> 8) & 0xFF;
int b = (p) & 0xFF;
this.m_bitmaps[3 * (i * this.m_width + j)] =
(byte)(r & 0xFF);
this.m_bitmaps[3 * (i * this.m_width + j) + 1] =
(byte)(g & 0xFF);
this.m_bitmaps[3 * (i * this.m_width + j) + 2] =
(byte)(b & 0xFF);
}
}
}
catch (Exception ex) {
/*throw new FopImageException("Error while loading image "
+ this.m_href.toString() + " : "
+ ex.getClass() + " - "
+ ex.getMessage());
*/}
}
}
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