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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java
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+/* BMPEncoder.java --
+ Copyright (C) 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.javax.imageio.bmp;
+
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public abstract class BMPEncoder
+{
+
+ /**
+ * Constructs a new BMPEncoder.
+ */
+ public BMPEncoder()
+ {
+ // Nothing to do here.
+ }
+
+ /**
+ * Determines the coding type of the bitmap and returns the corresponding
+ * encoder.
+ *
+ * @param fh - the file header
+ * @param ih - the info header
+ * @return the appropriate encoder
+ */
+ public static BMPEncoder getEncoder(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ switch (ih.getCompression())
+ {
+ case BMPInfoHeader.BI_RGB:
+ switch (ih.getBitCount())
+ {
+ case 32:
+ return new EncodeRGB32(fh, ih);
+
+ case 24:
+ return new EncodeRGB24(fh, ih);
+
+ case 16:
+ return new EncodeRGB16(fh, ih);
+
+ case 8:
+ return new EncodeRGB8(fh, ih);
+
+ case 4:
+ return new EncodeRGB4(fh, ih);
+
+ case 1:
+ return new EncodeRGB1(fh, ih);
+
+ default:
+ return null;
+ }
+ case BMPInfoHeader.BI_RLE4:
+ return new EncodeRLE4(fh, ih);
+
+ case BMPInfoHeader.BI_RLE8:
+ return new EncodeRLE8(fh, ih);
+ default:
+ return null;
+ }
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data, metadata and
+ * thumbnails to be written
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public abstract void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param)
+ throws IOException;
+}