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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.image;
-
- // AWT
- import java.awt.image.ColorModel;
- import java.awt.image.IndexColorModel;
- import java.awt.image.BufferedImage;
- import java.awt.Color;
-
- // JAI
- import javax.media.jai.JAI;
- import javax.media.jai.RenderedOp;
-
- import org.apache.commons.io.IOUtils;
- // Sun codec
- import com.sun.media.jai.codec.FileCacheSeekableStream;
-
- /**
- * FopImage object using JAI.
- *
- * @see AbstractFopImage
- * @see FopImage
- */
- public class JAIImage extends AbstractFopImage {
-
- /**
- * Create a new JAI image.
- *
- * @param imgInfo the image info for this JAI image
- */
- public JAIImage(FopImage.ImageInfo imgInfo) {
- super(imgInfo);
- }
-
- /**
- * {@inheritDoc}
- */
- protected boolean loadDimensions() {
- if (this.bitmaps == null) {
- loadImage();
- }
- return this.bitmaps != null;
- }
-
- /**
- * {@inheritDoc}
- */
- protected boolean loadBitmap() {
- if (this.bitmaps == null) {
- loadImage();
- }
-
- return this.bitmaps != null;
- }
-
- /**
- * Loads the image from the inputstream
- */
- protected void loadImage() {
- com.sun.media.jai.codec.FileCacheSeekableStream seekableInput = null;
- RenderedOp imageOp = null;
- try {
- seekableInput = new FileCacheSeekableStream(inputStream);
- imageOp = JAI.create("stream", seekableInput);
-
- this.height = imageOp.getHeight();
- this.width = imageOp.getWidth();
-
- ColorModel cm = imageOp.getColorModel();
- //this.bitsPerPixel = 8;
- this.bitsPerPixel = cm.getPixelSize();
-
- // TODO: the getRGB() function converts the image into the RGB
- // colorspace. However, here we assume the image colorspace is kept.
- // It should be either one of them, but not both. Unfortunately
- // there are other hacks for images in the CMYK colorspace (e.g. in
- // the PDF output) that would need to be changed as well.
-
- //this.colorSpace = ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB);
- this.colorSpace = cm.getColorSpace();
-
- BufferedImage imageData = imageOp.getAsBufferedImage();
- int[] tmpMap = imageData.getRGB(0, 0, this.width,
- this.height, null, 0, this.width);
-
- if (cm.hasAlpha()) {
- // java.awt.Transparency. BITMASK or OPAQUE or TRANSLUCENT
- int transparencyType = cm.getTransparency();
-
- if (transparencyType == java.awt.Transparency.OPAQUE) {
- this.isTransparent = false;
- } else if (transparencyType == java.awt.Transparency.BITMASK) {
- if (cm instanceof IndexColorModel) {
- this.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.isTransparent = true;
- this.transparentColor = new Color(
- (int)(reds[i] & 0xFF),
- (int)(greens[i] & 0xFF),
- (int)(blues[i] & 0xFF));
- break;
- }
- }
- } else {
- // TRANSLUCENT
- /*
- * this.isTransparent = false;
- * for (int i = 0; i < this.width * this.height; i++) {
- * if (cm.getAlpha(tmpMap[i]) == 0) {
- * this.isTransparent = true;
- * this.transparentColor = new PDFColor(cm.getRed(tmpMap[i]),
- * cm.getGreen(tmpMap[i]), cm.getBlue(tmpMap[i]));
- * break;
- * }
- * }
- * // or use special API...
- */
- this.isTransparent = false;
- }
- } else {
- this.isTransparent = false;
- }
- } else {
- this.isTransparent = false;
- }
-
- // Should take care of the ColorSpace and bitsPerPixel
- this.bitmaps = new byte[this.width * this.height * 3];
- for (int i = 0; i < this.height; i++) {
- for (int j = 0; j < this.width; j++) {
- int p = tmpMap[i * this.width + j];
- int r = (p >> 16) & 0xFF;
- int g = (p >> 8) & 0xFF;
- int b = (p) & 0xFF;
- this.bitmaps[3 * (i * this.width + j)] = (byte)(r & 0xFF);
- this.bitmaps[3 * (i * this.width + j) + 1] = (byte)(g & 0xFF);
- this.bitmaps[3 * (i * this.width + j) + 2] = (byte)(b & 0xFF);
- }
- }
-
- } catch (Exception ex) {
- log.error("Error while loading image (JAI): " + ex.getMessage(), ex);
- } finally {
- IOUtils.closeQuietly(inputStream);
- inputStream = null;
- if (imageOp != null) {
- imageOp.dispose();
- }
- if (seekableInput != null) {
- IOUtils.closeQuietly(seekableInput);
- }
- }
- }
-
- /** {@inheritDoc} */
- protected boolean loadOriginalData() {
- return loadDefaultOriginalData();
- }
-
- }
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