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Diffstat (limited to 'libjava/classpath/gnu/java/awt/peer/gtk/GdkPixbufDecoder.java')
| -rw-r--r-- | libjava/classpath/gnu/java/awt/peer/gtk/GdkPixbufDecoder.java | 785 |
1 files changed, 0 insertions, 785 deletions
diff --git a/libjava/classpath/gnu/java/awt/peer/gtk/GdkPixbufDecoder.java b/libjava/classpath/gnu/java/awt/peer/gtk/GdkPixbufDecoder.java deleted file mode 100644 index 1b247c6ebf7..00000000000 --- a/libjava/classpath/gnu/java/awt/peer/gtk/GdkPixbufDecoder.java +++ /dev/null @@ -1,785 +0,0 @@ -/* GdkPixbufDecoder.java -- Image data decoding object - Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package gnu.java.awt.peer.gtk; - -import java.awt.image.BufferedImage; -import java.awt.image.ColorModel; -import java.awt.image.DirectColorModel; -import java.awt.image.ImageConsumer; -import java.awt.image.Raster; -import java.awt.image.RenderedImage; -import java.io.DataInput; -import java.io.DataOutput; -import java.io.IOException; -import java.io.InputStream; -import java.net.URL; -import java.util.ArrayList; -import java.util.Hashtable; -import java.util.Iterator; -import java.util.Locale; -import java.util.Vector; - -import javax.imageio.IIOImage; -import javax.imageio.ImageReadParam; -import javax.imageio.ImageReader; -import javax.imageio.ImageTypeSpecifier; -import javax.imageio.ImageWriteParam; -import javax.imageio.ImageWriter; -import javax.imageio.metadata.IIOMetadata; -import javax.imageio.spi.IIORegistry; -import javax.imageio.spi.ImageReaderSpi; -import javax.imageio.spi.ImageWriterSpi; -import javax.imageio.stream.ImageInputStream; -import javax.imageio.stream.ImageOutputStream; - -import gnu.classpath.Configuration; -import gnu.classpath.Pointer; - -public class GdkPixbufDecoder extends gnu.java.awt.image.ImageDecoder -{ - static - { - if (true) // GCJ LOCAL - { - System.loadLibrary("gtkpeer"); - } - - initStaticState (); - } - - /** - * Lock that should be held for all gdkpixbuf operations. We don't use - * the global gdk_threads_enter/leave functions since gdkpixbuf - * operations can be done in parallel to drawing and manipulating gtk - * widgets. - */ - static Object pixbufLock = new Object(); - - static native void initStaticState(); - private final int native_state = GtkGenericPeer.getUniqueInteger (); - - // initState() has been called, but pumpDone() has not yet been called. - private boolean needsClose = false; - - // the current set of ImageConsumers for this decoder - Vector curr; - - /** - * The pointer to the native pixbuf loader. - * - * This field is manipulated by native code. Don't change or remove - * without adjusting the native code. - */ - private Pointer nativeDecoder; - - // interface to GdkPixbuf - // These native functions should be called with the pixbufLock held. - native void initState (); - native void pumpBytes (byte[] bytes, int len) throws IOException; - native void pumpDone () throws IOException; - native void finish (boolean needsClose); - - /** - * Converts given image to bytes. - * Will call the GdkPixbufWriter for each chunk. - */ - static native void streamImage(int[] bytes, String format, - int width, int height, - boolean hasAlpha, GdkPixbufWriter writer); - - // gdk-pixbuf provids data in RGBA format - static final ColorModel cm = new DirectColorModel (32, 0xff000000, - 0x00ff0000, - 0x0000ff00, - 0x000000ff); - public GdkPixbufDecoder (DataInput datainput) - { - super (datainput); - } - - public GdkPixbufDecoder (InputStream in) - { - super (in); - } - - public GdkPixbufDecoder (String filename) - { - super (filename); - } - - public GdkPixbufDecoder (URL url) - { - super (url); - } - - public GdkPixbufDecoder (byte[] imagedata, int imageoffset, int imagelength) - { - super (imagedata, imageoffset, imagelength); - } - - // called back by native side: area_prepared_cb - void areaPrepared (int width, int height) - { - - if (curr == null) - return; - - for (int i = 0; i < curr.size (); i++) - { - ImageConsumer ic = (ImageConsumer) curr.elementAt (i); - ic.setDimensions (width, height); - ic.setColorModel (cm); - ic.setHints (ImageConsumer.RANDOMPIXELORDER); - } - } - - // called back by native side: area_updated_cb - void areaUpdated (int x, int y, int width, int height, - int pixels[], int scansize) - { - if (curr == null) - return; - - for (int i = 0; i < curr.size (); i++) - { - ImageConsumer ic = (ImageConsumer) curr.elementAt (i); - ic.setPixels (x, y, width, height, cm, pixels, 0, scansize); - } - } - - // called from an async image loader of one sort or another, this method - // repeatedly reads bytes from the input stream and passes them through a - // GdkPixbufLoader using the native method pumpBytes. pumpBytes in turn - // decodes the image data and calls back areaPrepared and areaUpdated on - // this object, feeding back decoded pixel blocks, which we pass to each - // of the ImageConsumers in the provided Vector. - - public void produce (Vector v, InputStream is) throws IOException - { - curr = v; - - byte bytes[] = new byte[4096]; - int len = 0; - synchronized(pixbufLock) - { - initState(); - } - needsClose = true; - - // Note: We don't want the pixbufLock while reading from the InputStream. - while ((len = is.read (bytes)) != -1) - { - synchronized(pixbufLock) - { - pumpBytes (bytes, len); - } - } - - synchronized(pixbufLock) - { - pumpDone(); - } - - needsClose = false; - - for (int i = 0; i < curr.size (); i++) - { - ImageConsumer ic = (ImageConsumer) curr.elementAt (i); - ic.imageComplete (ImageConsumer.STATICIMAGEDONE); - } - - curr = null; - } - - public void finalize() - { - synchronized(pixbufLock) - { - finish(needsClose); - } - } - - - public static class ImageFormatSpec - { - public String name; - public boolean writable = false; - public ArrayList<String> mimeTypes = new ArrayList<String>(); - public ArrayList<String> extensions = new ArrayList<String>(); - - public ImageFormatSpec(String name, boolean writable) - { - this.name = name; - this.writable = writable; - } - - public synchronized void addMimeType(String m) - { - mimeTypes.add(m); - } - - public synchronized void addExtension(String e) - { - extensions.add(e); - } - } - - static ArrayList<ImageFormatSpec> imageFormatSpecs; - - public static ImageFormatSpec registerFormat(String name, boolean writable) - { - ImageFormatSpec ifs = new ImageFormatSpec(name, writable); - synchronized(GdkPixbufDecoder.class) - { - if (imageFormatSpecs == null) - imageFormatSpecs = new ArrayList<ImageFormatSpec>(); - imageFormatSpecs.add(ifs); - } - return ifs; - } - - static String[] getFormatNames(boolean writable) - { - ArrayList<String> names = new ArrayList<String>(); - synchronized (imageFormatSpecs) - { - Iterator<ImageFormatSpec> i = imageFormatSpecs.iterator(); - while (i.hasNext()) - { - ImageFormatSpec ifs = i.next(); - if (writable && !ifs.writable) - continue; - names.add(ifs.name); - - /* - * In order to make the filtering code work, we need to register - * this type under every "format name" likely to be used as a synonym. - * This generally means "all the extensions people might use". - */ - - Iterator<String> j = ifs.extensions.iterator(); - while (j.hasNext()) - names.add(j.next()); - } - } - return names.toArray(new String[names.size()]); - } - - static String[] getFormatExtensions(boolean writable) - { - ArrayList<String> extensions = new ArrayList<String>(); - synchronized (imageFormatSpecs) - { - Iterator<ImageFormatSpec> i = imageFormatSpecs.iterator(); - while (i.hasNext()) - { - ImageFormatSpec ifs = i.next(); - if (writable && !ifs.writable) - continue; - Iterator<String> j = ifs.extensions.iterator(); - while (j.hasNext()) - extensions.add(j.next()); - } - } - return extensions.toArray(new String[extensions.size()]); - } - - static String[] getFormatMimeTypes(boolean writable) - { - ArrayList<String> mimeTypes = new ArrayList<String>(); - synchronized (imageFormatSpecs) - { - Iterator<ImageFormatSpec> i = imageFormatSpecs.iterator(); - while (i.hasNext()) - { - ImageFormatSpec ifs = i.next(); - if (writable && !ifs.writable) - continue; - Iterator<String> j = ifs.mimeTypes.iterator(); - while (j.hasNext()) - mimeTypes.add(j.next()); - } - } - return mimeTypes.toArray(new String[mimeTypes.size()]); - } - - - static String findFormatName(Object ext, boolean needWritable) - { - if (ext == null) - return null; - - if (!(ext instanceof String)) - throw new IllegalArgumentException("extension is not a string"); - - String str = (String) ext; - - Iterator<ImageFormatSpec> i = imageFormatSpecs.iterator(); - while (i.hasNext()) - { - ImageFormatSpec ifs = i.next(); - - if (needWritable && !ifs.writable) - continue; - - if (ifs.name.equals(str)) - return str; - - Iterator<String> j = ifs.extensions.iterator(); - while (j.hasNext()) - { - String extension = j.next(); - if (extension.equals(str)) - return ifs.name; - } - - j = ifs.mimeTypes.iterator(); - while (j.hasNext()) - { - String mimeType = j.next(); - if (mimeType.equals(str)) - return ifs.name; - } - } - throw new IllegalArgumentException("unknown extension '" + str + "'"); - } - - private static GdkPixbufReaderSpi readerSpi; - private static GdkPixbufWriterSpi writerSpi; - - public static synchronized GdkPixbufReaderSpi getReaderSpi() - { - if (readerSpi == null) - readerSpi = new GdkPixbufReaderSpi(); - return readerSpi; - } - - public static synchronized GdkPixbufWriterSpi getWriterSpi() - { - if (writerSpi == null) - writerSpi = new GdkPixbufWriterSpi(); - return writerSpi; - } - - public static void registerSpis(IIORegistry reg) - { - reg.registerServiceProvider(getReaderSpi(), ImageReaderSpi.class); - reg.registerServiceProvider(getWriterSpi(), ImageWriterSpi.class); - } - - public static class GdkPixbufWriterSpi extends ImageWriterSpi - { - public GdkPixbufWriterSpi() - { - super("GdkPixbuf", "2.x", - GdkPixbufDecoder.getFormatNames(true), - GdkPixbufDecoder.getFormatExtensions(true), - GdkPixbufDecoder.getFormatMimeTypes(true), - "gnu.java.awt.peer.gtk.GdkPixbufDecoder$GdkPixbufWriter", - new Class[] { ImageOutputStream.class }, - new String[] { "gnu.java.awt.peer.gtk.GdkPixbufDecoder$GdkPixbufReaderSpi" }, - false, null, null, null, null, - false, null, null, null, null); - } - - public boolean canEncodeImage(ImageTypeSpecifier ts) - { - return true; - } - - public ImageWriter createWriterInstance(Object ext) - { - return new GdkPixbufWriter(this, ext); - } - - public String getDescription(java.util.Locale loc) - { - return "GdkPixbuf Writer SPI"; - } - - } - - public static class GdkPixbufReaderSpi extends ImageReaderSpi - { - public GdkPixbufReaderSpi() - { - super("GdkPixbuf", "2.x", - GdkPixbufDecoder.getFormatNames(false), - GdkPixbufDecoder.getFormatExtensions(false), - GdkPixbufDecoder.getFormatMimeTypes(false), - "gnu.java.awt.peer.gtk.GdkPixbufDecoder$GdkPixbufReader", - new Class[] { ImageInputStream.class }, - new String[] { "gnu.java.awt.peer.gtk.GdkPixbufDecoder$GdkPixbufWriterSpi" }, - false, null, null, null, null, - false, null, null, null, null); - } - - public boolean canDecodeInput(Object obj) - { - return true; - } - - public ImageReader createReaderInstance(Object ext) - { - return new GdkPixbufReader(this, ext); - } - - public String getDescription(Locale loc) - { - return "GdkPixbuf Reader SPI"; - } - } - - private static class GdkPixbufWriter - extends ImageWriter implements Runnable - { - String ext; - public GdkPixbufWriter(GdkPixbufWriterSpi ownerSpi, Object ext) - { - super(ownerSpi); - this.ext = findFormatName(ext, true); - } - - public IIOMetadata convertImageMetadata (IIOMetadata inData, - ImageTypeSpecifier imageType, - ImageWriteParam param) - { - return null; - } - - public IIOMetadata convertStreamMetadata (IIOMetadata inData, - ImageWriteParam param) - { - return null; - } - - public IIOMetadata getDefaultImageMetadata (ImageTypeSpecifier imageType, - ImageWriteParam param) - { - return null; - } - - public IIOMetadata getDefaultStreamMetadata (ImageWriteParam param) - { - return null; - } - - public void write (IIOMetadata streamMetadata, IIOImage i, ImageWriteParam param) - throws IOException - { - RenderedImage image = i.getRenderedImage(); - Raster ras = image.getData(); - int width = ras.getWidth(); - int height = ras.getHeight(); - ColorModel model = image.getColorModel(); - int[] pixels = CairoGraphics2D.findSimpleIntegerArray (image.getColorModel(), ras); - - if (pixels == null) - { - BufferedImage img; - if(model != null && model.hasAlpha()) - img = CairoSurface.getBufferedImage(width, height); - img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); - int[] pix = new int[4]; - for (int y = 0; y < height; ++y) - for (int x = 0; x < width; ++x) - img.setRGB(x, y, model.getRGB(ras.getPixel(x, y, pix))); - pixels = CairoGraphics2D.findSimpleIntegerArray (img.getColorModel(), - img.getRaster()); - model = img.getColorModel(); - } - - Thread workerThread = new Thread(this, "GdkPixbufWriter"); - workerThread.start(); - processImageStarted(1); - synchronized(pixbufLock) - { - streamImage(pixels, this.ext, width, height, model.hasAlpha(), - this); - } - synchronized(data) - { - data.add(DATADONE); - data.notifyAll(); - } - - while (workerThread.isAlive()) - { - try - { - workerThread.join(); - } - catch (InterruptedException ioe) - { - // Ignored. - } - } - - if (exception != null) - throw exception; - - processImageComplete(); - } - - /** - * Object marking end of data from native streamImage code. - */ - private static final Object DATADONE = new Object(); - - /** - * Holds the data gotten from the native streamImage code. - * A worker thread will pull data out. - * Needs to be synchronized for access. - * The special object DATADONE is added when all data has been delivered. - */ - private ArrayList<Object> data = new ArrayList<Object>(); - - /** - * Holds any IOException thrown by the run method that needs - * to be rethrown by the write method. - */ - private IOException exception; - - /** Callback for streamImage native code. **/ - private void write(byte[] bs) - { - synchronized(data) - { - data.add(bs); - data.notifyAll(); - } - } - - public void run() - { - boolean done = false; - while (!done) - { - synchronized(data) - { - while (data.isEmpty()) - { - try - { - data.wait(); - } - catch (InterruptedException ie) - { - /* ignore */ - } - } - - Object o = data.remove(0); - if (o == DATADONE) - done = true; - else - { - DataOutput out = (DataOutput) getOutput(); - try - { - out.write((byte[]) o); - } - catch (IOException ioe) - { - // We are only interested in the first exception. - if (exception == null) - exception = ioe; - } - } - } - } - } - } - - private static class GdkPixbufReader - extends ImageReader - implements ImageConsumer - { - // ImageConsumer parts - GdkPixbufDecoder dec; - BufferedImage bufferedImage; - ColorModel defaultModel; - int width; - int height; - String ext; - - public GdkPixbufReader(GdkPixbufReaderSpi ownerSpi, Object ext) - { - super(ownerSpi); - this.ext = findFormatName(ext, false); - } - - public GdkPixbufReader(GdkPixbufReaderSpi ownerSpi, Object ext, - GdkPixbufDecoder d) - { - this(ownerSpi, ext); - dec = d; - } - - public void setDimensions(int w, int h) - { - processImageStarted(1); - width = w; - height = h; - } - - public void setProperties(Hashtable props) {} - - public void setColorModel(ColorModel model) - { - defaultModel = model; - } - - public void setHints(int flags) {} - - public void setPixels(int x, int y, int w, int h, - ColorModel model, byte[] pixels, - int offset, int scansize) - { - } - - public void setPixels(int x, int y, int w, int h, - ColorModel model, int[] pixels, - int offset, int scansize) - { - if (model == null) - model = defaultModel; - - if (bufferedImage == null) - { - if(model != null && model.hasAlpha()) - bufferedImage = new BufferedImage (width, height, - BufferedImage.TYPE_INT_ARGB); - else - bufferedImage = new BufferedImage (width, height, - BufferedImage.TYPE_INT_RGB); - } - - int pixels2[]; - if (model != null) - { - pixels2 = new int[pixels.length]; - for (int yy = 0; yy < h; yy++) - for (int xx = 0; xx < w; xx++) - { - int i = yy * scansize + xx; - pixels2[i] = model.getRGB (pixels[i]); - } - } - else - pixels2 = pixels; - - bufferedImage.setRGB (x, y, w, h, pixels2, offset, scansize); - processImageProgress(y / (height == 0 ? 1 : height)); - } - - public void imageComplete(int status) - { - processImageComplete(); - } - - public BufferedImage getBufferedImage() - { - if (bufferedImage == null && dec != null) - dec.startProduction (this); - return bufferedImage; - } - - // ImageReader parts - - public int getNumImages(boolean allowSearch) - throws IOException - { - return 1; - } - - public IIOMetadata getImageMetadata(int i) - { - return null; - } - - public IIOMetadata getStreamMetadata() - throws IOException - { - return null; - } - - public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex) - throws IOException - { - BufferedImage img = getBufferedImage(); - Vector<ImageTypeSpecifier> vec = new Vector<ImageTypeSpecifier>(); - vec.add(new ImageTypeSpecifier(img)); - return vec.iterator(); - } - - public int getHeight(int imageIndex) - throws IOException - { - return getBufferedImage().getHeight(); - } - - public int getWidth(int imageIndex) - throws IOException - { - return getBufferedImage().getWidth(); - } - - public void setInput(Object input, - boolean seekForwardOnly, - boolean ignoreMetadata) - { - super.setInput(input, seekForwardOnly, ignoreMetadata); - Object get = getInput(); - if (get instanceof InputStream) - dec = new GdkPixbufDecoder((InputStream) get); - else if (get instanceof DataInput) - dec = new GdkPixbufDecoder((DataInput) get); - else - throw new IllegalArgumentException("input object not supported: " - + get); - } - - public BufferedImage read(int imageIndex, ImageReadParam param) - throws IOException - { - return getBufferedImage (); - } - } -} |