diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java')
-rw-r--r-- | libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java b/libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java new file mode 100644 index 000000000..65cae7a89 --- /dev/null +++ b/libjava/classpath/gnu/java/awt/peer/gtk/GtkImageConsumer.java @@ -0,0 +1,169 @@ +/* GtkImageConsumer.java + Copyright (C) 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.ColorModel; +import java.awt.image.ImageConsumer; +import java.awt.image.ImageProducer; +import java.awt.image.MemoryImageSource; +import java.nio.ByteOrder; +import java.util.Hashtable; + +/** + * Helper class to GtkImage. Sits and gathers pixels for a GtkImage and then + * calls GtkImage.setImage(). + * + * @author Sven de Marothy + */ +public class GtkImageConsumer implements ImageConsumer +{ + private GtkImage target; + private int width, height; + private Hashtable<?,?> properties; + private int[] pixelCache = null; + private ImageProducer source; + + public GtkImageConsumer(GtkImage target, ImageProducer source) + { + this.target = target; + this.source = source; + } + + public synchronized void imageComplete (int status) + { + // we need to reuse the pixel cache for memory image sources since + // a memory image's backing array can be updated "live". + if (!(source instanceof MemoryImageSource)) + source.removeConsumer(this); + target.setImage(width, height, pixelCache, properties); + } + + public synchronized void setColorModel (ColorModel model) + { + // This method is to inform on what the most used color model + // in the image is, for optimization reasons. We ignore this + // information. + } + + public synchronized void setDimensions (int width, int height) + { + pixelCache = new int[width*height]; + + this.width = width; + this.height = height; + } + + public synchronized void setHints (int flags) + { + // This method informs us in which order the pixels are + // delivered, for progressive-loading support, etc. + // Since we wait until it's all loaded, we can ignore the hints. + } + + public synchronized void setPixels (int x, int y, int width, int height, + ColorModel cm, byte[] pixels, + int offset, int scansize) + { + setPixels (x, y, width, height, cm, convertPixels (pixels), offset, + scansize); + } + + public synchronized void setPixels (int x, int y, int width, int height, + ColorModel cm, int[] pixels, + int offset, int scansize) + { + if (pixelCache == null) + return; // Not sure this should ever happen. + + if (cm.equals(GtkImage.nativeModel)) + for (int i = 0; i < height; i++) + System.arraycopy (pixels, offset + (i * scansize), + pixelCache, (y + i) * this.width + x, + width); + else + { + if (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN) + { + for (int i = 0; i < height; i++) + for (int j = 0; j < width; j++) + { + // get in RRGGBBAA and convert to AARRGGBB + int pix = cm.getRGB(pixels[offset + (i * scansize) + x + j]); + int a = ((pix & 0xFF000000) >> 24) & 0xFF; + int rgb = (pix & 0x00FFFFFF) << 8; + pix = rgb | a; + pixelCache[(y + i) * this.width + x + j] = pix; + } + } + else + { + for (int i = 0; i < height; i++) + for (int j = 0; j < width; j++) + { + // get in AARRGGBB and convert to AABBGGRR + int pix = cm.getRGB(pixels[offset + (i * scansize) + x + j]); + byte b = (byte)(pix & 0xFF); + byte r = (byte)(((pix & 0x00FF0000) >> 16) & 0xFF); + pix &= 0xFF00FF00; + pix |= ((b & 0xFF) << 16); + pix |= (r & 0xFF); + pixelCache[(y + i) * this.width + x + j] = pix; + } + } + } + } + + /** + * This is an old method, no idea if it's correct. + */ + private int[] convertPixels (byte[] pixels) + { + int ret[] = new int[pixels.length]; + + for (int i = 0; i < pixels.length; i++) + ret[i] = pixels[i] & 0xFF; + + return ret; + } + + public synchronized void setProperties (Hashtable<?,?> props) + { + this.properties = props; + } +} |