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Diffstat (limited to 'java/ImageProcessing/framework/ImageEncoder.java')
| -rw-r--r-- | java/ImageProcessing/framework/ImageEncoder.java | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/java/ImageProcessing/framework/ImageEncoder.java b/java/ImageProcessing/framework/ImageEncoder.java deleted file mode 100644 index a0aac0d559f..00000000000 --- a/java/ImageProcessing/framework/ImageEncoder.java +++ /dev/null @@ -1,271 +0,0 @@ -// ImageEncoder - abstract class for writing out an image -// -// Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>. All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions -// are met: -// 1. Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// 2. Redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution. -// -// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND -// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE -// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -// SUCH DAMAGE. -// -// Visit the ACME Labs Java page for up-to-date versions of this and other -// fine Java utilities: http://www.acme.com/java/ - -package imaging.framework; - -import java.util.*; -import java.io.*; -import java.awt.Image; -import java.awt.image.*; - -/// Abstract class for writing out an image. -// <P> -// A framework for classes that encode and write out an image in -// a particular file format. -// <P> -// This provides a simplified rendition of the ImageConsumer interface. -// It always delivers the pixels as ints in the RGBdefault color model. -// It always provides them in top-down left-right order. -// If you want more flexibility you can always implement ImageConsumer -// directly. -// <P> -// <A HREF="/resources/classes/Acme/JPM/Encoders/ImageEncoder.java">Fetch the software.</A><BR> -// <A HREF="/resources/classes/Acme.tar.Z">Fetch the entire Acme package.</A> -// <P> -// @see GifEncoder -// @see PpmEncoder -// @see Acme.JPM.Decoders.ImageDecoder - -public abstract class ImageEncoder implements ImageConsumer - { - - protected OutputStream out; - - private ImageProducer producer; - private int width = -1; - private int height = -1; - private int hintflags = 0; - private boolean started = false; - private boolean encoding; - private IOException iox; - private static final ColorModel rgbModel = ColorModel.getRGBdefault(); - private Hashtable props = null; - - /// Constructor. - // @param img The image to encode. - // @param out The stream to write the bytes to. - public ImageEncoder( Image img, OutputStream out ) throws IOException - { - this( img.getSource(), out ); - } - - /// Constructor. - // @param producer The ImageProducer to encode. - // @param out The stream to write the bytes to. - public ImageEncoder( ImageProducer producer, OutputStream out ) throws IOException - { - this.producer = producer; - this.out = out; - } - - - // Methods that subclasses implement. - - /// Subclasses implement this to initialize an encoding. - abstract void encodeStart( int w, int h ) throws IOException; - - /// Subclasses implement this to actually write out some bits. They - // are guaranteed to be delivered in top-down-left-right order. - // One int per pixel, index is row * scansize + off + col, - // RGBdefault (AARRGGBB) color model. - abstract void encodePixels( - int x, int y, int w, int h, int[] rgbPixels, int off, int scansize ) - throws IOException; - - /// Subclasses implement this to finish an encoding. - abstract void encodeDone() throws IOException; - - - // Our own methods. - - /// Call this after initialization to get things going. - public synchronized void encode() throws IOException - { - encoding = true; - iox = null; - producer.startProduction( this ); - while ( encoding ) - try - { - wait(); - } - catch ( InterruptedException e ) {} - if ( iox != null ) - throw iox; - } - - private boolean accumulate = false; - private int[] accumulator; - - private void encodePixelsWrapper( - int x, int y, int w, int h, int[] rgbPixels, int off, int scansize ) - throws IOException - { - if ( ! started ) - { - started = true; - encodeStart( width, height ); - if ( ( hintflags & TOPDOWNLEFTRIGHT ) == 0 ) - { - accumulate = true; - accumulator = new int[width * height]; - } - } - if ( accumulate ) - for ( int row = 0; row < h; ++row ) - System.arraycopy( - rgbPixels, row * scansize + off, - accumulator, ( y + row ) * width + x, - w ); - else - encodePixels( x, y, w, h, rgbPixels, off, scansize ); - } - - private void encodeFinish() throws IOException - { - if ( accumulate ) - { - encodePixels( 0, 0, width, height, accumulator, 0, width ); - accumulator = null; - accumulate = false; - } - } - - private synchronized void stop() - { - encoding = false; - notifyAll(); - } - - - // Methods from ImageConsumer. - - public void setDimensions( int width, int height ) - { - this.width = width; - this.height = height; - } - - public void setProperties( Hashtable props ) - { - this.props = props; - } - - public void setColorModel( ColorModel model ) - { - // Ignore. - } - - public void setHints( int hintflags ) - { - this.hintflags = hintflags; - } - - public void setPixels( - int x, int y, int w, int h, ColorModel model, byte[] pixels, - int off, int scansize ) - { - int[] rgbPixels = new int[w]; - for ( int row = 0; row < h; ++row ) - { - int rowOff = off + row * scansize; - for ( int col = 0; col < w; ++col ) - rgbPixels[col] = model.getRGB( pixels[rowOff + col] & 0xff ); - try - { - encodePixelsWrapper( x, y + row, w, 1, rgbPixels, 0, w ); - } - catch ( IOException e ) - { - iox = e; - stop(); - return; - } - } - } - - public void setPixels( - int x, int y, int w, int h, ColorModel model, int[] pixels, - int off, int scansize ) - { - if ( model == rgbModel ) - { - try - { - encodePixelsWrapper( x, y, w, h, pixels, off, scansize ); - } - catch ( IOException e ) - { - iox = e; - stop(); - return; - } - } - else - { - int[] rgbPixels = new int[w]; - for ( int row = 0; row < h; ++row ) - { - int rowOff = off + row * scansize; - for ( int col = 0; col < w; ++col ) - rgbPixels[col] = model.getRGB( pixels[rowOff + col] ); - try - { - encodePixelsWrapper( x, y + row, w, 1, rgbPixels, 0, w ); - } - catch ( IOException e ) - { - iox = e; - stop(); - return; - } - } - } - } - - public void imageComplete( int status ) - { - producer.removeConsumer( this ); - if ( status == ImageConsumer.IMAGEABORTED ) - iox = new IOException( "image aborted" ); - else - { - try - { - encodeFinish(); - encodeDone(); - } - catch ( IOException e ) - { - iox = e; - } - } - stop(); - } - - } |