Add JNI wrapper for TurboJPEG/OSS

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@337 632fc199-4ca6-4c93-a231-07263d6284db

java/turbojpeg.java

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C)2011 D. R. Commander.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - 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.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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.
+ */
+
+final class TJ {
+
+  // Subsampling options
+  final static int
+    SAMP444    = 0,
+    SAMP422    = 1,
+    SAMP420    = 2,
+    GRAYSCALE  = 3;
+
+  // Flags
+  final static int
+    BGR          = 1,
+    BOTTOMUP     = 2,
+    FORCEMMX     = 8,
+    FORCESSE     = 16,
+    FORCESSE2    = 32,
+    ALPHAFIRST   = 64,
+    FORCESSE3    = 128,
+    FASTUPSAMPLE = 256,
+    YUV          = 512;
+
+  public native final static long BUFSIZE(int width, int height);
+};
+
+class tjCompressor {
+
+  tjCompressor() throws Exception {Init();}
+
+  public void close() throws Exception {Destroy();}
+
+  protected void finalize() throws Throwable {
+    try {
+      close();
+    } catch(Exception e) {
+    }
+    finally {
+      super.finalize();
+    }
+  };
+
+  private native void Init() throws Exception;
+
+  private native void Destroy() throws Exception;
+
+  // JPEG size in bytes is returned
+  public native long Compress(byte [] srcbuf, int width, int pitch,
+    int height, int pixelsize, byte [] dstbuf, int jpegsubsamp, int jpegqual,
+    int flags) throws Exception;
+
+  static {
+    System.loadLibrary("turbojpeg");
+  }
+
+  private long handle=0;
+};
+
+class tjHeaderInfo {
+  int subsamp=-1;
+  int width=-1;
+  int height=-1;
+};
+
+class tjDecompressor {
+
+  tjDecompressor() throws Exception {Init();}
+
+  public void close() throws Exception {Destroy();}
+
+  protected void finalize() throws Throwable {
+    try {
+      close();
+    } catch(Exception e) {
+    }
+    finally {
+      super.finalize();
+    }
+  };
+
+  private native void Init() throws Exception;
+
+  private native void Destroy() throws Exception;
+
+  public native tjHeaderInfo DecompressHeader(byte [] srcbuf, long size)
+    throws Exception;
+
+  public native void Decompress(byte [] srcbuf, long size, byte [] dstbuf,
+    int width, int pitch, int height, int pixelsize, int flags)
+    throws Exception;
+
+  static {
+    System.loadLibrary("turbojpeg");
+  }
+
+  private long handle=0;
+};