Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/

java/TJExample.java

+/*
+ * Copyright (C)2011-2012, 2014-2015 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.
+ */
+
+/*
+ * This program demonstrates how to compress and decompress JPEG files using
+ * the TurboJPEG JNI wrapper
+ */
+
+import java.io.*;
+import java.awt.*;
+import java.awt.image.*;
+import java.nio.*;
+import javax.imageio.*;
+import javax.swing.*;
+import org.libjpegturbo.turbojpeg.*;
+
+public class TJExample implements TJCustomFilter {
+
+  public static final String classname = new TJExample().getClass().getName();
+
+  private static void usage() throws Exception {
+    System.out.println("\nUSAGE: java " + classname + " <Input file> <Output file> [options]\n");
+    System.out.println("Input and output files can be any image format that the Java Image I/O");
+    System.out.println("extensions understand.  If either filename ends in a .jpg extension, then");
+    System.out.println("TurboJPEG will be used to compress or decompress the file.\n");
+    System.out.println("Options:\n");
+    System.out.println("-scale M/N = if the input image is a JPEG file, scale the width/height of the");
+    System.out.print("             output image by a factor of M/N (M/N = ");
+    for (int i = 0; i < sf.length; i++) {
+      System.out.print(sf[i].getNum() + "/" + sf[i].getDenom());
+      if (sf.length == 2 && i != sf.length - 1)
+        System.out.print(" or ");
+      else if (sf.length > 2) {
+        if (i != sf.length - 1)
+          System.out.print(", ");
+        if (i == sf.length - 2)
+          System.out.print("or ");
+      }
+    }
+    System.out.println(")\n");
+    System.out.println("-samp <444|422|420|gray> = If the output image is a JPEG file, this specifies");
+    System.out.println("                           the level of chrominance subsampling to use when");
+    System.out.println("                           recompressing it.  Default is to use the same level");
+    System.out.println("                           of subsampling as the input, if the input is a JPEG");
+    System.out.println("                           file, or 4:4:4 otherwise.\n");
+    System.out.println("-q <1-100> = If the output image is a JPEG file, this specifies the JPEG");
+    System.out.println("             quality to use when recompressing it (default = 95).\n");
+    System.out.println("-hflip, -vflip, -transpose, -transverse, -rot90, -rot180, -rot270 =");
+    System.out.println("     If the input image is a JPEG file, perform the corresponding lossless");
+    System.out.println("     transform prior to decompression (these options are mutually exclusive)\n");
+    System.out.println("-grayscale = If the input image is a JPEG file, perform lossless grayscale");
+    System.out.println("     conversion prior to decompression (can be combined with the other");
+    System.out.println("     transforms above)\n");
+    System.out.println("-crop X,Y,WxH = If the input image is a JPEG file, perform lossless cropping");
+    System.out.println("     prior to decompression.  X,Y specifies the upper left corner of the");
+    System.out.println("     cropping region, and WxH specifies its width and height.  X,Y must be");
+    System.out.println("     evenly divible by the MCU block size (8x8 if the source image was");
+    System.out.println("     compressed using no subsampling or grayscale, or 16x8 for 4:2:2 or 16x16");
+    System.out.println("     for 4:2:0.)\n");
+    System.out.println("-display = Display output image (Output file need not be specified in this");
+    System.out.println("     case.)\n");
+    System.out.println("-fastupsample = Use the fastest chrominance upsampling algorithm available in");
+    System.out.println("     the underlying codec\n");
+    System.out.println("-fastdct = Use the fastest DCT/IDCT algorithms available in the underlying");
+    System.out.println("     codec\n");
+    System.out.println("-accuratedct = Use the most accurate DCT/IDCT algorithms available in the");
+    System.out.println("     underlying codec\n");
+    System.exit(1);
+  }
+
+  private static final String[] sampName = {
+    "4:4:4", "4:2:2", "4:2:0", "Grayscale", "4:4:0"
+  };
+
+  public static void main(String[] argv) {
+
+    BufferedImage img = null;
+    byte[] bmpBuf = null;
+    TJTransform xform = new TJTransform();
+    int flags = 0;
+
+    try {
+
+      sf = TJ.getScalingFactors();
+
+      if (argv.length < 2) {
+        usage();
+      }
+
+      TJScalingFactor scaleFactor = new TJScalingFactor(1, 1);
+      String inFormat = "jpg", outFormat = "jpg";
+      int outSubsamp = -1, outQual = 95;
+      boolean display = false;
+
+      if (argv.length > 1) {
+        for (int i = 1; i < argv.length; i++) {
+          if (argv[i].length() < 2)
+            continue;
+          if (argv[i].length() > 2 &&
+              argv[i].substring(0, 3).equalsIgnoreCase("-sc")) {
+            int match = 0;
+            if (i < argv.length - 1) {
+              String[] scaleArg = argv[++i].split("/");
+              if (scaleArg.length == 2) {
+                TJScalingFactor tempsf =
+                  new TJScalingFactor(Integer.parseInt(scaleArg[0]),
+                                      Integer.parseInt(scaleArg[1]));
+                for (int j = 0; j < sf.length; j++) {
+                  if (tempsf.equals(sf[j])) {
+                    scaleFactor = sf[j];
+                    match = 1;
+                    break;
+                  }
+                }
+              }
+            }
+            if (match != 1) usage();
+          }
+          if (argv[i].equalsIgnoreCase("-h") || argv[i].equalsIgnoreCase("-?"))
+            usage();
+          if (argv[i].length() > 2 &&
+              argv[i].substring(0, 3).equalsIgnoreCase("-sa")) {
+            if (i < argv.length - 1) {
+              i++;
+              if (argv[i].substring(0, 1).equalsIgnoreCase("g"))
+                outSubsamp = TJ.SAMP_GRAY;
+              else if (argv[i].equals("444"))
+                outSubsamp = TJ.SAMP_444;
+              else if (argv[i].equals("422"))
+                outSubsamp = TJ.SAMP_422;
+              else if (argv[i].equals("420"))
+                outSubsamp = TJ.SAMP_420;
+              else
+                usage();
+            } else
+              usage();
+          }
+          if (argv[i].substring(0, 2).equalsIgnoreCase("-q")) {
+            if (i < argv.length - 1) {
+              int qual = Integer.parseInt(argv[++i]);
+              if (qual >= 1 && qual <= 100)
+                outQual = qual;
+              else
+                usage();
+            } else
+              usage();
+          }
+          if (argv[i].substring(0, 2).equalsIgnoreCase("-g"))
+            xform.options |= TJTransform.OPT_GRAY;
+          if (argv[i].equalsIgnoreCase("-hflip"))
+            xform.op = TJTransform.OP_HFLIP;
+          if (argv[i].equalsIgnoreCase("-vflip"))
+            xform.op = TJTransform.OP_VFLIP;
+          if (argv[i].equalsIgnoreCase("-transpose"))
+            xform.op = TJTransform.OP_TRANSPOSE;
+          if (argv[i].equalsIgnoreCase("-transverse"))
+            xform.op = TJTransform.OP_TRANSVERSE;
+          if (argv[i].equalsIgnoreCase("-rot90"))
+            xform.op = TJTransform.OP_ROT90;
+          if (argv[i].equalsIgnoreCase("-rot180"))
+            xform.op = TJTransform.OP_ROT180;
+          if (argv[i].equalsIgnoreCase("-rot270"))
+            xform.op = TJTransform.OP_ROT270;
+          if (argv[i].equalsIgnoreCase("-custom"))
+            xform.cf = new TJExample();
+          else if (argv[i].length() > 2 &&
+                   argv[i].substring(0, 2).equalsIgnoreCase("-c")) {
+            if (i >= argv.length - 1)
+              usage();
+            String[] cropArg = argv[++i].split(",");
+            if (cropArg.length != 3)
+              usage();
+            String[] dimArg = cropArg[2].split("[xX]");
+            if (dimArg.length != 2)
+              usage();
+            int tempx = Integer.parseInt(cropArg[0]);
+            int tempy = Integer.parseInt(cropArg[1]);
+            int tempw = Integer.parseInt(dimArg[0]);
+            int temph = Integer.parseInt(dimArg[1]);
+            if (tempx < 0 || tempy < 0 || tempw < 0 || temph < 0)
+              usage();
+            xform.x = tempx;
+            xform.y = tempy;
+            xform.width = tempw;
+            xform.height = temph;
+            xform.options |= TJTransform.OPT_CROP;
+          }
+          if (argv[i].substring(0, 2).equalsIgnoreCase("-d"))
+            display = true;
+          if (argv[i].equalsIgnoreCase("-fastupsample")) {
+            System.out.println("Using fast upsampling code");
+            flags |= TJ.FLAG_FASTUPSAMPLE;
+          }
+          if (argv[i].equalsIgnoreCase("-fastdct")) {
+            System.out.println("Using fastest DCT/IDCT algorithm");
+            flags |= TJ.FLAG_FASTDCT;
+          }
+          if (argv[i].equalsIgnoreCase("-accuratedct")) {
+            System.out.println("Using most accurate DCT/IDCT algorithm");
+            flags |= TJ.FLAG_ACCURATEDCT;
+          }
+        }
+      }
+      String[] inFileTokens = argv[0].split("\\.");
+      if (inFileTokens.length > 1)
+        inFormat = inFileTokens[inFileTokens.length - 1];
+      String[] outFileTokens;
+      if (display)
+        outFormat = "bmp";
+      else {
+        outFileTokens = argv[1].split("\\.");
+        if (outFileTokens.length > 1)
+          outFormat = outFileTokens[outFileTokens.length - 1];
+      }
+
+      File file = new File(argv[0]);
+      int width, height;
+
+      if (inFormat.equalsIgnoreCase("jpg")) {
+        FileInputStream fis = new FileInputStream(file);
+        int inputSize = fis.available();
+        if (inputSize < 1) {
+          System.out.println("Input file contains no data");
+          System.exit(1);
+        }
+        byte[] inputBuf = new byte[inputSize];
+        fis.read(inputBuf);
+        fis.close();
+
+        TJDecompressor tjd;
+        if (xform.op != TJTransform.OP_NONE || xform.options != 0 ||
+            xform.cf != null) {
+          TJTransformer tjt = new TJTransformer(inputBuf);
+          TJTransform[] t = new TJTransform[1];
+          t[0] = xform;
+          t[0].options |= TJTransform.OPT_TRIM;
+          TJDecompressor[] tjdx = tjt.transform(t, 0);
+          tjd = tjdx[0];
+        } else
+          tjd = new TJDecompressor(inputBuf);
+
+        width = tjd.getWidth();
+        height = tjd.getHeight();
+        int inSubsamp = tjd.getSubsamp();
+        System.out.println("Source Image: " + width + " x " + height +
+                           " pixels, " + sampName[inSubsamp] + " subsampling");
+        if (outSubsamp < 0)
+          outSubsamp = inSubsamp;
+
+        if (outFormat.equalsIgnoreCase("jpg") &&
+            (xform.op != TJTransform.OP_NONE || xform.options != 0) &&
+            scaleFactor.isOne()) {
+          file = new File(argv[1]);
+          FileOutputStream fos = new FileOutputStream(file);
+          fos.write(tjd.getJPEGBuf(), 0, tjd.getJPEGSize());
+          fos.close();
+          System.exit(0);
+        }
+
+        width = scaleFactor.getScaled(width);
+        height = scaleFactor.getScaled(height);
+
+        if (!outFormat.equalsIgnoreCase("jpg"))
+          img = tjd.decompress(width, height, BufferedImage.TYPE_INT_RGB,
+                               flags);
+        else
+          bmpBuf = tjd.decompress(width, 0, height, TJ.PF_BGRX, flags);
+        tjd.close();
+      } else {
+        img = ImageIO.read(file);
+        if (img == null)
+          throw new Exception("Input image type not supported.");
+        width = img.getWidth();
+        height = img.getHeight();
+        if (outSubsamp < 0) {
+          if (img.getType() == BufferedImage.TYPE_BYTE_GRAY)
+            outSubsamp = TJ.SAMP_GRAY;
+          else
+            outSubsamp = TJ.SAMP_444;
+        }
+      }
+      System.gc();
+      if (!display)
+        System.out.print("Dest. Image (" + outFormat + "):  " + width + " x " +
+                         height + " pixels");
+
+      if (display) {
+        ImageIcon icon = new ImageIcon(img);
+        JLabel label = new JLabel(icon, JLabel.CENTER);
+        JOptionPane.showMessageDialog(null, label, "Output Image",
+                                      JOptionPane.PLAIN_MESSAGE);
+      } else if (outFormat.equalsIgnoreCase("jpg")) {
+        System.out.println(", " + sampName[outSubsamp] +
+                           " subsampling, quality = " + outQual);
+        TJCompressor tjc = new TJCompressor();
+        int jpegSize;
+        byte[] jpegBuf;
+
+        tjc.setSubsamp(outSubsamp);
+        tjc.setJPEGQuality(outQual);
+        if (img != null)
+          tjc.setSourceImage(img, 0, 0, 0, 0);
+        else {
+          tjc.setSourceImage(bmpBuf, 0, 0, width, 0, height, TJ.PF_BGRX);
+        }
+        jpegBuf = tjc.compress(flags);
+        jpegSize = tjc.getCompressedSize();
+        tjc.close();
+
+        file = new File(argv[1]);
+        FileOutputStream fos = new FileOutputStream(file);
+        fos.write(jpegBuf, 0, jpegSize);
+        fos.close();
+      } else {
+        System.out.print("\n");
+        file = new File(argv[1]);
+        ImageIO.write(img, outFormat, file);
+      }
+
+    } catch(Exception e) {
+      e.printStackTrace();
+      System.exit(-1);
+    }
+  }
+
+  public void customFilter(ShortBuffer coeffBuffer, Rectangle bufferRegion,
+                           Rectangle planeRegion, int componentIndex,
+                           int transformIndex, TJTransform transform)
+                           throws TJException {
+    for (int i = 0; i < bufferRegion.width * bufferRegion.height; i++) {
+      coeffBuffer.put(i, (short)(-coeffBuffer.get(i)));
+    }
+  }
+
+  static TJScalingFactor[] sf = null;
+};