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diff --git a/libjava/java/awt/image/BufferedImage.java b/libjava/java/awt/image/BufferedImage.java
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-/* BufferedImage.java --
- Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation
-
-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 java.awt.image;
-
-import gnu.java.awt.ComponentDataBlitOp;
-
-import java.awt.Graphics;
-import java.awt.Graphics2D;
-import java.awt.GraphicsEnvironment;
-import java.awt.Image;
-import java.awt.Point;
-import java.awt.Rectangle;
-import java.awt.Transparency;
-import java.awt.color.ColorSpace;
-import java.util.HashSet;
-import java.util.Hashtable;
-import java.util.Iterator;
-import java.util.Vector;
-
-/**
- * A buffered image always starts at coordinates (0, 0).
- *
- * The buffered image is not subdivided into multiple tiles. Instead,
- * the image consists of one large tile (0,0) with the width and
- * height of the image. This tile is always considered to be checked
- * out.
- *
- * @author Rolf W. Rasmussen (rolfwr@ii.uib.no)
- */
-public class BufferedImage extends Image
- implements WritableRenderedImage
-{
- public static final int TYPE_CUSTOM = 0,
- TYPE_INT_RGB = 1,
- TYPE_INT_ARGB = 2,
- TYPE_INT_ARGB_PRE = 3,
- TYPE_INT_BGR = 4,
- TYPE_3BYTE_BGR = 5,
- TYPE_4BYTE_ABGR = 6,
- TYPE_4BYTE_ABGR_PRE = 7,
- TYPE_USHORT_565_RGB = 8,
- TYPE_USHORT_555_RGB = 9,
- TYPE_BYTE_GRAY = 10,
- TYPE_USHORT_GRAY = 11,
- TYPE_BYTE_BINARY = 12,
- TYPE_BYTE_INDEXED = 13;
-
- static final int[] bits3 = { 8, 8, 8 };
- static final int[] bits4 = { 8, 8, 8 };
- static final int[] bits1byte = { 8 };
- static final int[] bits1ushort = { 16 };
-
- static final int[] masks_int = { 0x00ff0000,
- 0x0000ff00,
- 0x000000ff,
- DataBuffer.TYPE_INT };
- static final int[] masks_565 = { 0xf800,
- 0x07e0,
- 0x001f,
- DataBuffer.TYPE_USHORT};
- static final int[] masks_555 = { 0x7c00,
- 0x03e0,
- 0x001f,
- DataBuffer.TYPE_USHORT};
-
- Vector observers;
-
- public BufferedImage(int w, int h, int type)
- {
- ColorModel cm = null;
-
- boolean alpha = false;
- boolean premultiplied = false;
- switch (type)
- {
- case TYPE_4BYTE_ABGR_PRE:
- case TYPE_INT_ARGB_PRE:
- premultiplied = true;
- // fall through
- case TYPE_INT_ARGB:
- case TYPE_4BYTE_ABGR:
- alpha = true;
- }
-
- ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
- switch (type)
- {
- case TYPE_INT_RGB:
- case TYPE_INT_ARGB:
- case TYPE_INT_ARGB_PRE:
- case TYPE_USHORT_565_RGB:
- case TYPE_USHORT_555_RGB:
- int[] masks = null;
- switch (type)
- {
- case TYPE_INT_RGB:
- case TYPE_INT_ARGB:
- case TYPE_INT_ARGB_PRE:
- masks = masks_int;
- break;
- case TYPE_USHORT_565_RGB:
- masks = masks_565;
- break;
- case TYPE_USHORT_555_RGB:
- masks = masks_555;
- break;
- }
-
- cm = new DirectColorModel(cs,
- 32, // 32 bits in an int
- masks[0], // r
- masks[1], // g
- masks[2], // b
- alpha ? 0xff000000 : 0,
- premultiplied,
- masks[3] // data type
- );
- break;
-
- case TYPE_INT_BGR:
- String msg =
- "FIXME: Programmer is confused. Why (and how) does a " +
- "TYPE_INT_BGR image use ComponentColorModel to store " +
- "8-bit values? Is data type TYPE_INT or TYPE_BYTE. What " +
- "is the difference between TYPE_INT_BGR and TYPE_3BYTE_BGR?";
- throw new UnsupportedOperationException(msg);
-
- case TYPE_3BYTE_BGR:
- case TYPE_4BYTE_ABGR:
- case TYPE_4BYTE_ABGR_PRE:
- case TYPE_BYTE_GRAY:
- case TYPE_USHORT_GRAY:
- int[] bits = null;
- int dataType = DataBuffer.TYPE_BYTE;
- switch (type) {
- case TYPE_3BYTE_BGR:
- bits = bits3;
- break;
- case TYPE_4BYTE_ABGR:
- case TYPE_4BYTE_ABGR_PRE:
- bits = bits4;
- break;
- case TYPE_BYTE_GRAY:
- bits = bits1byte;
- break;
- case TYPE_USHORT_GRAY:
- bits = bits1ushort;
- dataType = DataBuffer.TYPE_USHORT;
- break;
- }
- cm = new ComponentColorModel(cs, bits, alpha, premultiplied,
- alpha ?
- Transparency.TRANSLUCENT:
- Transparency.OPAQUE,
- dataType);
- break;
- case TYPE_BYTE_BINARY:
- byte[] vals = { 0, (byte) 0xff };
- cm = new IndexColorModel(8, 2, vals, vals, vals);
- break;
- case TYPE_BYTE_INDEXED:
- String msg2 = "type not implemented yet";
- throw new UnsupportedOperationException(msg2);
- // FIXME: build color-cube and create color model
- }
-
- init(cm,
- cm.createCompatibleWritableRaster(w, h),
- premultiplied,
- null, // no properties
- type
- );
- }
-
- public BufferedImage(int w, int h, int type,
- IndexColorModel indexcolormodel)
- {
- if ((type != TYPE_BYTE_BINARY) && (type != TYPE_BYTE_INDEXED))
- throw new IllegalArgumentException("type must be binary or indexed");
-
- init(indexcolormodel,
- indexcolormodel.createCompatibleWritableRaster(w, h),
- false, // not premultiplied (guess)
- null, // no properties
- type);
- }
-
- public BufferedImage(ColorModel colormodel,
- WritableRaster writableraster,
- boolean premultiplied,
- Hashtable properties)
- {
- init(colormodel, writableraster, premultiplied, properties,
- TYPE_CUSTOM);
- // TODO: perhaps try to identify type?
- }
-
- WritableRaster raster;
- ColorModel colorModel;
- Hashtable properties;
- boolean isPremultiplied;
- int type;
-
- private void init(ColorModel cm,
- WritableRaster writableraster,
- boolean premultiplied,
- Hashtable properties,
- int type)
- {
- raster = writableraster;
- colorModel = cm;
- this.properties = properties;
- isPremultiplied = premultiplied;
- this.type = type;
- }
-
- //public void addTileObserver(TileObserver tileobserver) {}
-
- public void coerceData(boolean premultiplied)
- {
- colorModel = colorModel.coerceData(raster, premultiplied);
- }
-
- public WritableRaster copyData(WritableRaster dest)
- {
- if (dest == null)
- dest = raster.createCompatibleWritableRaster(getMinX(), getMinY(),
- getWidth(),getHeight());
-
- int x = dest.getMinX();
- int y = dest.getMinY();
- int w = dest.getWidth();
- int h = dest.getHeight();
-
- // create a src child that has the right bounds...
- WritableRaster src =
- raster.createWritableChild(x, y, w, h, x, y,
- null // same bands
- );
- if (src.getSampleModel () instanceof ComponentSampleModel
- && dest.getSampleModel () instanceof ComponentSampleModel)
- // Refer to ComponentDataBlitOp for optimized data blitting:
- ComponentDataBlitOp.INSTANCE.filter(src, dest);
- else
- {
- // slower path
- int samples[] = src.getPixels (x, y, w, h, (int [])null);
- dest.setPixels (x, y, w, h, samples);
- }
- return dest;
- }
-
- public Graphics2D createGraphics()
- {
- GraphicsEnvironment env;
- env = GraphicsEnvironment.getLocalGraphicsEnvironment ();
- return env.createGraphics (this);
- }
-
- public void flush() {
- }
-
- public WritableRaster getAlphaRaster()
- {
- return colorModel.getAlphaRaster(raster);
- }
-
- public ColorModel getColorModel()
- {
- return colorModel;
- }
-
- public Raster getData()
- {
- return copyData(null);
- /* TODO: this might be optimized by returning the same
- raster (not writable) as long as image data doesn't change. */
- }
-
- public Raster getData(Rectangle rectangle)
- {
- WritableRaster dest =
- raster.createCompatibleWritableRaster(rectangle);
- return copyData(dest);
- }
-
- public Graphics getGraphics()
- {
- return createGraphics();
- }
-
- public int getHeight()
- {
- return raster.getHeight();
- }
-
- public int getHeight(ImageObserver imageobserver)
- {
- return getHeight();
- }
-
- public int getMinTileX()
- {
- return 0;
- }
-
- public int getMinTileY()
- {
- return 0;
- }
-
- public int getMinX()
- {
- return 0;
- }
-
- public int getMinY()
- {
- return 0;
- }
-
- public int getNumXTiles()
- {
- return 1;
- }
-
- public int getNumYTiles()
- {
- return 1;
- }
-
- public Object getProperty(String string)
- {
- if (properties == null)
- return null;
- return properties.get(string);
- }
-
- public Object getProperty(String string, ImageObserver imageobserver)
- {
- return getProperty(string);
- }
-
-
- public String[] getPropertyNames()
- {
- // FIXME: implement
- return null;
- }
-
- public int getRGB(int x, int y)
- {
- Object rgbElem = raster.getDataElements(x, y,
- null // create as needed
- );
- return colorModel.getRGB(rgbElem);
- }
-
- public int[] getRGB(int startX, int startY, int w, int h,
- int[] rgbArray,
- int offset, int scanlineStride)
- {
- if (rgbArray == null)
- {
- /*
- 000000000000000000
- 00000[#######----- [ = start
- -----########----- ] = end
- -----#######]00000
- 000000000000000000 */
- int size = (h-1)*scanlineStride + w;
- rgbArray = new int[size];
- }
-
- int endX = startX + w;
- int endY = startY + h;
-
- /* *TODO*:
- Opportunity for optimization by examining color models...
-
- Perhaps wrap the rgbArray up in a WritableRaster with packed
- sRGB color model and perform optimized rendering into the
- array. */
-
- Object rgbElem = null;
- for (int y=startY; y<endY; y++)
- {
- int xoffset = offset;
- for (int x=startX; x<endX; x++)
- {
- int rgb;
- rgbElem = raster.getDataElements(x, y, rgbElem);
- rgb = colorModel.getRGB(rgbElem);
- rgbArray[xoffset++] = rgb;
- }
- offset += scanlineStride;
- }
- return rgbArray;
- }
-
- public WritableRaster getRaster()
- {
- return raster;
- }
-
- public SampleModel getSampleModel()
- {
- return raster.getSampleModel();
- }
-
- public ImageProducer getSource()
- {
- return new ImageProducer() {
-
- HashSet consumers = new HashSet();
-
- public void addConsumer(ImageConsumer ic)
- {
- consumers.add(ic);
- }
-
- public boolean isConsumer(ImageConsumer ic)
- {
- return consumers.contains(ic);
- }
-
- public void removeConsumer(ImageConsumer ic)
- {
- consumers.remove(ic);
- }
-
- public void startProduction(ImageConsumer ic)
- {
- int x = 0;
- int y = 0;
- int width = getWidth();
- int height = getHeight();
- int stride = width;
- int offset = 0;
- int[] pixels = getRGB(x, y,
- width, height,
- (int[])null, offset, stride);
- ColorModel model = getColorModel();
-
- consumers.add(ic);
-
- Iterator i = consumers.iterator();
- while(i.hasNext())
- {
- ImageConsumer c = (ImageConsumer) i.next();
- c.setHints(ImageConsumer.SINGLEPASS);
- c.setDimensions(getWidth(), getHeight());
- c.setPixels(x, y, width, height, model, pixels, offset, stride);
- c.imageComplete(ImageConsumer.STATICIMAGEDONE);
- }
- }
-
- public void requestTopDownLeftRightResend(ImageConsumer ic)
- {
- startProduction(ic);
- }
-
- };
- }
-
- public Vector getSources()
- {
- return null;
- }
-
- public BufferedImage getSubimage(int x, int y, int w, int h)
- {
- WritableRaster subRaster =
- getRaster().createWritableChild(x, y, w, h, 0, 0, null);
-
- return new BufferedImage(getColorModel(),
- subRaster,
- isPremultiplied,
- properties);
- }
-
- public Raster getTile(int tileX, int tileY)
- {
- return getWritableTile(tileX, tileY);
- }
-
- public int getTileGridXOffset()
- {
- return 0; // according to javadocs
- }
-
- public int getTileGridYOffset()
- {
- return 0; // according to javadocs
- }
-
- public int getTileHeight()
- {
- return getHeight(); // image is one big tile
- }
-
- public int getTileWidth()
- {
- return getWidth(); // image is one big tile
- }
-
- public int getType()
- {
- return type;
- }
-
- public int getWidth()
- {
- return raster.getWidth();
- }
-
- public int getWidth(ImageObserver imageobserver)
- {
- return getWidth();
- }
-
- public WritableRaster getWritableTile(int tileX, int tileY)
- {
- isTileWritable(tileX, tileY); // for exception
- return raster;
- }
-
- private static final Point[] tileIndices = { new Point() };
-
- public Point[] getWritableTileIndices()
- {
- return tileIndices;
- }
-
- public boolean hasTileWriters()
- {
- return true;
- }
-
- public boolean isAlphaPremultiplied()
- {
- return isPremultiplied;
- }
-
- public boolean isTileWritable(int tileX, int tileY)
- {
- if ((tileX != 0) || (tileY != 0))
- throw new ArrayIndexOutOfBoundsException("only tile is (0,0)");
- return true;
- }
-
- public void releaseWritableTile(int tileX, int tileY)
- {
- isTileWritable(tileX, tileY); // for exception
- }
-
- //public void removeTileObserver(TileObserver tileobserver) {}
-
- public void setData(Raster src)
- {
- int x = src.getMinX();
- int y = src.getMinY();
- int w = src.getWidth();
- int h = src.getHeight();
-
- // create a dest child that has the right bounds...
- WritableRaster dest =
- raster.createWritableChild(x, y, w, h, x, y,
- null // same bands
- );
-
- if (src.getSampleModel () instanceof ComponentSampleModel
- && dest.getSampleModel () instanceof ComponentSampleModel)
-
- // Refer to ComponentDataBlitOp for optimized data blitting:
- ComponentDataBlitOp.INSTANCE.filter(src, dest);
- else
- {
- // slower path
- int samples[] = src.getPixels (x, y, w, h, (int [])null);
- dest.setPixels (x, y, w, h, samples);
- }
- }
-
- public void setRGB(int x, int y, int argb)
- {
- Object rgbElem = colorModel.getDataElements(argb, null);
- raster.setDataElements(x, y, rgbElem);
- }
-
- public void setRGB(int startX, int startY, int w, int h,
- int[] argbArray, int offset, int scanlineStride)
- {
- int endX = startX + w;
- int endY = startY + h;
-
- Object rgbElem = null;
- for (int y=startY; y<endY; y++)
- {
- int xoffset = offset;
- for (int x=startX; x<endX; x++)
- {
- int argb = argbArray[xoffset++];
- rgbElem = colorModel.getDataElements(argb, rgbElem);
- raster.setDataElements(x, y, rgbElem);
- }
- offset += scanlineStride;
- }
- }
-
- public String toString()
- {
- StringBuffer buf;
-
- buf = new StringBuffer(/* estimated length */ 120);
- buf.append("BufferedImage@");
- buf.append(Integer.toHexString(hashCode()));
- buf.append(": type=");
- buf.append(type);
- buf.append(' ');
- buf.append(colorModel);
- buf.append(' ');
- buf.append(raster);
-
- return buf.toString();
- }
-
-
- /**
- * Adds a tile observer. If the observer is already present, it receives
- * multiple notifications.
- *
- * @param to The TileObserver to add.
- */
- public void addTileObserver (TileObserver to)
- {
- if (observers == null)
- observers = new Vector ();
-
- observers.add (to);
- }
-
- /**
- * Removes a tile observer. If the observer was not registered,
- * nothing happens. If the observer was registered for multiple
- * notifications, it is now registered for one fewer notification.
- *
- * @param to The TileObserver to remove.
- */
- public void removeTileObserver (TileObserver to)
- {
- if (observers == null)
- return;
-
- observers.remove (to);
- }
-}
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