kc3-lang/libjpeg-turbo/java/TJBench.java

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• Hash : c889b1da
  Author :
  Date : 2025-06-12T09:40:20
  

  TJBench: Require additional argument with -copy
  
  (oversight from e4c67aff50420d7bacff503ceb4556c896128413)
  

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• java/TJBench.java

• /*
   * Copyright (C)2009-2014, 2016-2019, 2021-2025 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.
   */
  
  import java.io.*;
  import java.awt.*;
  import java.awt.image.*;
  import javax.imageio.*;
  import java.nio.*;
  import java.util.*;
  import org.libjpegturbo.turbojpeg.*;
  
  final class TJBench {
  
    private TJBench() {}
  
    private static boolean stopOnWarning, bottomUp, fastUpsample, fastDCT,
      optimize, progressive, arithmetic, lossless;
    private static int maxMemory = 0, maxPixels = 0, maxScans = 0, precision = 8,
      quiet = 0, pf = TJ.PF_BGR, yuvAlign = 1, restartIntervalBlocks = 0,
      restartIntervalRows = 0;
    private static boolean compOnly, decompOnly, doTile, doYUV, write = true;
    private static String ext = null;
  
    static final String[] PIXFORMATSTR = {
      "RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "GRAY", "", "", "", "",
      "CMYK"
    };
  
    static final String[] SUBNAME_LONG = {
      "4:4:4", "4:2:2", "4:2:0", "GRAY", "4:4:0", "4:1:1", "4:4:1"
    };
  
    static final String[] SUBNAME = {
      "444", "422", "420", "GRAY", "440", "411", "441"
    };
  
    static final String[] CSNAME = {
      "RGB", "YCbCr", "GRAY", "CMYK", "YCCK"
    };
  
    private static TJScalingFactor sf = TJ.UNSCALED;
    private static java.awt.Rectangle cr = TJ.UNCROPPED;
    private static int xformOp = TJTransform.OP_NONE, xformOpt = 0;
    private static double benchTime = 5.0, warmup = 1.0;
  
  
    private static class DummyDCTFilter implements TJCustomFilter {
      public void customFilter(ShortBuffer coeffBuffer, Rectangle bufferRegion,
                               Rectangle planeRegion, int componentID,
                               int transformID, TJTransform transform) {
        for (int i = 0; i < bufferRegion.width * bufferRegion.height; i++)
          coeffBuffer.put(i, (short)(-coeffBuffer.get(i)));
      }
    }
  
    private static DummyDCTFilter customFilter;
  
  
    @SuppressWarnings("checkstyle:HiddenField")
    private static boolean isCropped(java.awt.Rectangle cr) {
      return (cr.x != 0 || cr.y != 0 || cr.width != 0 || cr.height != 0);
    }
  
    private static int getCroppedWidth(int width) {
      if (isCropped(cr))
        return (cr.width != 0 ? cr.width : sf.getScaled(width) - cr.x);
      else
        return sf.getScaled(width);
    }
  
    private static int getCroppedHeight(int height) {
      if (isCropped(cr))
        return (cr.height != 0 ? cr.height : sf.getScaled(height) - cr.y);
      else
        return sf.getScaled(height);
    }
  
  
    static double getTime() {
      return (double)System.nanoTime() / 1.0e9;
    }
  
  
    private static String tjErrorMsg;
    private static int tjErrorCode = -1;
  
    static void handleTJException(TJException e) throws TJException {
      String errorMsg = e.getMessage();
      int errorCode = e.getErrorCode();
  
      if (!stopOnWarning && errorCode == TJ.ERR_WARNING) {
        if (tjErrorMsg == null || !tjErrorMsg.equals(errorMsg) ||
            tjErrorCode != errorCode) {
          tjErrorMsg = errorMsg;
          tjErrorCode = errorCode;
          System.out.println("WARNING: " + errorMsg);
        }
      } else
        throw e;
    }
  
  
    static String formatName(int subsamp, int cs) {
      if (quiet != 0) {
        if (lossless)
          return String.format("%-2d/LOSSLESS   ", precision);
        else if (subsamp == TJ.SAMP_UNKNOWN)
          return String.format("%-2d/%-5s      ", precision, CSNAME[cs]);
        else
          return String.format("%-2d/%-5s/%-5s", precision, CSNAME[cs],
                               SUBNAME_LONG[subsamp]);
      } else {
        if (lossless)
          return "Lossless";
        else if (subsamp == TJ.SAMP_UNKNOWN)
          return CSNAME[cs];
        else
          return CSNAME[cs] + " " + SUBNAME_LONG[subsamp];
      }
    }
  
  
    static String sigFig(double val, int figs) {
      String format;
      int digitsAfterDecimal = figs - (int)Math.ceil(Math.log10(Math.abs(val)));
  
      if (digitsAfterDecimal < 1)
        format = new String("%.0f");
      else
        format = new String("%." + digitsAfterDecimal + "f");
      return String.format(format, val);
    }
  
  
    /* Decompression test */
    static void decomp(byte[][] jpegBufs, int[] jpegSizes, Object dstBuf, int w,
                       int h, int subsamp, int jpegQual, String fileName,
                       int tilew, int tileh) throws Exception {
      String qualStr = new String(""), sizeStr, tempStr;
      TJDecompressor tjd;
      double elapsed, elapsedDecode;
      int ps = TJ.getPixelSize(pf), i, iter = 0;
      int scaledw, scaledh, pitch;
      YUVImage yuvImage = null;
  
      if (lossless)
        sf = TJ.UNSCALED;
  
      scaledw = sf.getScaled(w);
      scaledh = sf.getScaled(h);
  
      if (jpegQual > 0)
        qualStr = new String((lossless ? "_PSV" : "_Q") + jpegQual);
  
      tjd = new TJDecompressor();
      tjd.set(TJ.PARAM_STOPONWARNING, stopOnWarning ? 1 : 0);
      tjd.set(TJ.PARAM_BOTTOMUP, bottomUp ? 1 : 0);
      tjd.set(TJ.PARAM_FASTUPSAMPLE, fastUpsample ? 1 : 0);
      tjd.set(TJ.PARAM_FASTDCT, fastDCT ? 1 : 0);
      tjd.set(TJ.PARAM_SCANLIMIT, maxScans);
      tjd.set(TJ.PARAM_MAXMEMORY, maxMemory);
      tjd.set(TJ.PARAM_MAXPIXELS, maxPixels);
  
      if (isCropped(cr)) {
        try {
          tjd.setSourceImage(jpegBufs[0], jpegSizes[0]);
        } catch (TJException e) { handleTJException(e); }
      }
      tjd.setScalingFactor(sf);
      tjd.setCroppingRegion(cr);
      if (isCropped(cr)) {
        scaledw = cr.width != 0 ? cr.width : scaledw - cr.x;
        scaledh = cr.height != 0 ? cr.height : scaledh - cr.y;
      }
      pitch = scaledw * ps;
  
      if (dstBuf == null) {
        if ((long)pitch * (long)scaledh > (long)Integer.MAX_VALUE)
          throw new Exception("Image is too large");
        if (precision <= 8)
          dstBuf = new byte[pitch * scaledh];
        else
          dstBuf = new short[pitch * scaledh];
      }
  
      /* Set the destination buffer to gray so we know whether the decompressor
         attempted to write to it */
      if (precision <= 8)
        Arrays.fill((byte[])dstBuf, (byte)127);
      else if (precision <= 12)
        Arrays.fill((short[])dstBuf, (short)2047);
      else
        Arrays.fill((short[])dstBuf, (short)32767);
  
      if (doYUV) {
        int width = doTile ? tilew : scaledw;
        int height = doTile ? tileh : scaledh;
  
        yuvImage = new YUVImage(width, yuvAlign, height, subsamp);
        Arrays.fill(yuvImage.getBuf(), (byte)127);
      }
  
      /* Benchmark */
      iter = -1;
      elapsed = elapsedDecode = 0.0;
      while (true) {
        int tile = 0;
        double start = getTime();
  
        for (int y = 0; y < h; y += tileh) {
          for (int x = 0; x < w; x += tilew, tile++) {
            int width = doTile ? Math.min(tilew, w - x) : scaledw;
            int height = doTile ? Math.min(tileh, h - y) : scaledh;
  
            try {
              tjd.setSourceImage(jpegBufs[tile], jpegSizes[tile]);
            } catch (TJException e) { handleTJException(e); }
            if (doYUV) {
              yuvImage.setBuf(yuvImage.getBuf(), width, yuvAlign, height,
                              subsamp);
              try {
                tjd.decompressToYUV(yuvImage);
              } catch (TJException e) { handleTJException(e); }
              double startDecode = getTime();
              tjd.setSourceImage(yuvImage);
              try {
                tjd.decompress8((byte[])dstBuf, x, y, pitch, pf);
              } catch (TJException e) { handleTJException(e); }
              if (iter >= 0)
                elapsedDecode += getTime() - startDecode;
            } else {
              try {
                if (precision <= 8)
                  tjd.decompress8((byte[])dstBuf, x, y, pitch, pf);
                else if (precision <= 12)
                  tjd.decompress12((short[])dstBuf, x, y, pitch, pf);
                else
                  tjd.decompress16((short[])dstBuf, x, y, pitch, pf);
              } catch (TJException e) { handleTJException(e); }
            }
          }
        }
        elapsed += getTime() - start;
        if (iter >= 0) {
          iter++;
          if (elapsed >= benchTime)
            break;
        } else if (elapsed >= warmup) {
          iter = 0;
          elapsed = elapsedDecode = 0.0;
        }
      }
      if (doYUV)
        elapsed -= elapsedDecode;
  
      for (i = 0; i < jpegBufs.length; i++)
        jpegBufs[i] = null;
      jpegBufs = null;  jpegSizes = null;
      System.gc();
  
      if (quiet != 0) {
        System.out.format("%-6s%s",
                          sigFig((double)(w * h) / 1000000. *
                                 (double)iter / elapsed, 4),
                          quiet == 2 ? "\n" : "  ");
        if (doYUV)
          System.out.format("%s\n",
                            sigFig((double)(w * h) / 1000000. *
                                   (double)iter / elapsedDecode, 4));
        else if (quiet != 2)
          System.out.print("\n");
      } else {
        System.out.format("%s --> Frame rate:         %f fps\n",
                          (doYUV ? "Decomp to YUV" : "Decompress   "),
                          (double)iter / elapsed);
        System.out.format("                  Throughput:         %f Megapixels/sec\n",
                          (double)(w * h) / 1000000. * (double)iter / elapsed);
        if (doYUV) {
          System.out.format("YUV Decode    --> Frame rate:         %f fps\n",
                            (double)iter / elapsedDecode);
          System.out.format("                  Throughput:         %f Megapixels/sec\n",
                            (double)(w * h) / 1000000. *
                            (double)iter / elapsedDecode);
        }
      }
  
      if (!write) return;
  
      if (sf.getNum() != 1 || sf.getDenom() != 1)
        sizeStr = new String(sf.getNum() + "_" + sf.getDenom());
      else if (tilew != w || tileh != h)
        sizeStr = new String(tilew + "x" + tileh);
      else
        sizeStr = new String("full");
      if (decompOnly)
        tempStr = new String(fileName + "_" + sizeStr + "." + ext);
      else
        tempStr = new String(fileName + "_" +
                             (lossless ? "LOSSLS" : SUBNAME[subsamp]) + qualStr +
                             "_" + sizeStr + "." + ext);
  
      tjd.saveImage(tempStr, dstBuf, 0, 0, scaledw, 0, scaledh, pf);
    }
  
  
    static void fullTest(TJCompressor tjc, Object srcBuf, int w, int h,
                         int subsamp, int jpegQual, String fileName)
                         throws Exception {
      Object tmpBuf;
      byte[][] jpegBufs;
      int[] jpegSizes;
      double start, elapsed, elapsedEncode;
      int totalJpegSize = 0, tilew, tileh, i, iter;
      int ps = TJ.getPixelSize(pf);
      int ntilesw = 1, ntilesh = 1, pitch = w * ps;
      String pfStr = PIXFORMATSTR[pf];
      YUVImage yuvImage = null;
  
      if ((long)pitch * (long)h > (long)Integer.MAX_VALUE)
        throw new Exception("Image is too large");
      if (precision <= 8)
        tmpBuf = new byte[pitch * h];
      else
        tmpBuf = new short[pitch * h];
  
      if (quiet == 0)
        System.out.format(">>>>>  %s (%s) <--> %d-bit JPEG (%s %s%d)  <<<<<\n",
                          pfStr, bottomUp ? "Bottom-up" : "Top-down", precision,
                          lossless ? "Lossless" : SUBNAME_LONG[subsamp],
                          lossless ? "PSV" : "Q", jpegQual);
  
      tjc.set(TJ.PARAM_SUBSAMP, subsamp);
      tjc.set(TJ.PARAM_FASTDCT, fastDCT ? 1 : 0);
      tjc.set(TJ.PARAM_OPTIMIZE, optimize ? 1 : 0);
      tjc.set(TJ.PARAM_PROGRESSIVE, progressive ? 1 : 0);
      tjc.set(TJ.PARAM_ARITHMETIC, arithmetic ? 1 : 0);
      tjc.set(TJ.PARAM_LOSSLESS, lossless ? 1 : 0);
      if (lossless)
        tjc.set(TJ.PARAM_LOSSLESSPSV, jpegQual);
      else
        tjc.set(TJ.PARAM_QUALITY, jpegQual);
      tjc.set(TJ.PARAM_RESTARTBLOCKS, restartIntervalBlocks);
      tjc.set(TJ.PARAM_RESTARTROWS, restartIntervalRows);
      tjc.set(TJ.PARAM_MAXMEMORY, maxMemory);
  
      for (tilew = doTile ? 8 : w, tileh = doTile ? 8 : h; ;
           tilew *= 2, tileh *= 2) {
        if (tilew > w)
          tilew = w;
        if (tileh > h)
          tileh = h;
        ntilesw = (w + tilew - 1) / tilew;
        ntilesh = (h + tileh - 1) / tileh;
  
        jpegBufs =
          new byte[ntilesw * ntilesh][TJ.bufSize(tilew, tileh, subsamp)];
        jpegSizes = new int[ntilesw * ntilesh];
  
        /* Compression test */
        if (quiet == 1)
          System.out.format("%-4s(%s)  %-2d/%-6s %-3d   ", pfStr,
                            bottomUp ? "BU" : "TD", precision,
                            lossless ? "LOSSLS" : SUBNAME_LONG[subsamp],
                            jpegQual);
        if (precision <= 8) {
          for (i = 0; i < h; i++)
            System.arraycopy((byte[])srcBuf, w * ps * i, (byte[])tmpBuf,
                             pitch * i, w * ps);
        } else {
          for (i = 0; i < h; i++)
            System.arraycopy((short[])srcBuf, w * ps * i, (short[])tmpBuf,
                             pitch * i, w * ps);
        }
  
        if (doYUV) {
          yuvImage = new YUVImage(tilew, yuvAlign, tileh, subsamp);
          Arrays.fill(yuvImage.getBuf(), (byte)127);
        }
  
        /* Benchmark */
        iter = -1;
        elapsed = elapsedEncode = 0.0;
        while (true) {
          int tile = 0;
  
          totalJpegSize = 0;
          start = getTime();
          for (int y = 0; y < h; y += tileh) {
            for (int x = 0; x < w; x += tilew, tile++) {
              int width = Math.min(tilew, w - x);
              int height = Math.min(tileh, h - y);
  
              if (precision <= 8)
                tjc.setSourceImage((byte[])srcBuf, x, y, width, pitch, height,
                                   pf);
              else if (precision <= 12)
                tjc.setSourceImage12((short[])srcBuf, x, y, width, pitch, height,
                                     pf);
              else
                tjc.setSourceImage16((short[])srcBuf, x, y, width, pitch, height,
                                     pf);
              if (doYUV) {
                double startEncode = getTime();
  
                yuvImage.setBuf(yuvImage.getBuf(), width, yuvAlign, height,
                                subsamp);
                tjc.encodeYUV(yuvImage);
                if (iter >= 0)
                  elapsedEncode += getTime() - startEncode;
                tjc.setSourceImage(yuvImage);
              }
              tjc.compress(jpegBufs[tile]);
              jpegSizes[tile] = tjc.getCompressedSize();
              totalJpegSize += jpegSizes[tile];
            }
          }
          elapsed += getTime() - start;
          if (iter >= 0) {
            iter++;
            if (elapsed >= benchTime)
              break;
          } else if (elapsed >= warmup) {
            iter = 0;
            elapsed = elapsedEncode = 0.0;
          }
        }
        if (doYUV)
          elapsed -= elapsedEncode;
  
        if (quiet == 1)
          System.out.format("%-5d  %-5d   ", tilew, tileh);
        if (quiet != 0) {
          if (doYUV)
            System.out.format("%-6s%s",
                              sigFig((double)(w * h) / 1000000. *
                                     (double)iter / elapsedEncode, 4),
                              quiet == 2 ? "\n" : "  ");
          System.out.format("%-6s%s",
                            sigFig((double)(w * h) / 1000000. *
                                   (double)iter / elapsed, 4),
                            quiet == 2 ? "\n" : "  ");
          System.out.format("%-6s%s",
                            sigFig((double)(w * h * ps) / (double)totalJpegSize,
                                   4),
                            quiet == 2 ? "\n" : "  ");
        } else {
          System.out.format("\n%s size: %d x %d\n", doTile ? "Tile" : "Image",
                            tilew, tileh);
          if (doYUV) {
            System.out.format("Encode YUV    --> Frame rate:         %f fps\n",
                              (double)iter / elapsedEncode);
            System.out.format("                  Output image size:  %d bytes\n",
                              yuvImage.getSize());
            System.out.format("                  Compression ratio:  %f:1\n",
                              (double)(w * h * ps) / (double)yuvImage.getSize());
            System.out.format("                  Throughput:         %f Megapixels/sec\n",
                              (double)(w * h) / 1000000. *
                              (double)iter / elapsedEncode);
            System.out.format("                  Output bit stream:  %f Megabits/sec\n",
                              (double)yuvImage.getSize() * 8. / 1000000. *
                              (double)iter / elapsedEncode);
          }
          System.out.format("%s --> Frame rate:         %f fps\n",
                            doYUV ? "Comp from YUV" : "Compress     ",
                            (double)iter / elapsed);
          System.out.format("                  Output image size:  %d bytes\n",
                            totalJpegSize);
          System.out.format("                  Compression ratio:  %f:1\n",
                            (double)(w * h * ps) / (double)totalJpegSize);
          System.out.format("                  Throughput:         %f Megapixels/sec\n",
                            (double)(w * h) / 1000000. * (double)iter / elapsed);
          System.out.format("                  Output bit stream:  %f Megabits/sec\n",
                            (double)totalJpegSize * 8. / 1000000. *
                            (double)iter / elapsed);
        }
        if (tilew == w && tileh == h && write) {
          String tempStr = fileName + "_" +
                           (lossless ? "LOSSLS" : SUBNAME[subsamp]) + "_" +
                           (lossless ? "PSV" : "Q") + jpegQual + ".jpg";
          FileOutputStream fos = new FileOutputStream(tempStr);
  
          fos.write(jpegBufs[0], 0, jpegSizes[0]);
          fos.close();
          if (quiet == 0)
            System.out.println("Reference image written to " + tempStr);
        }
  
        /* Decompression test */
        if (!compOnly)
          decomp(jpegBufs, jpegSizes, tmpBuf, w, h, subsamp, jpegQual, fileName,
                 tilew, tileh);
        else if (quiet == 1)
          System.out.println("N/A");
  
        if (tilew == w && tileh == h) break;
      }
    }
  
  
    static void decompTest(String fileName) throws Exception {
      TJTransformer tjt;
      byte[][] jpegBufs = null;
      byte[] srcBuf;
      int[] jpegSizes = null;
      int totalJpegSize;
      double start, elapsed;
      int ps = TJ.getPixelSize(pf), tile, x, y, iter;
      // Original image
      int w = 0, h = 0, ntilesw = 1, ntilesh = 1, subsamp = -1, cs = -1;
      // Transformed image
      int minTile = 16, tw, th, ttilew, ttileh, tntilesw, tntilesh, tsubsamp;
  
      FileInputStream fis = new FileInputStream(fileName);
      if (fis.getChannel().size() > (long)Integer.MAX_VALUE)
        throw new Exception("Image is too large");
      int srcSize = (int)fis.getChannel().size();
      srcBuf = new byte[srcSize];
      fis.read(srcBuf, 0, srcSize);
      fis.close();
  
      int index = fileName.lastIndexOf('.');
      if (index >= 0)
        fileName = new String(fileName.substring(0, index));
  
      tjt = new TJTransformer();
      tjt.set(TJ.PARAM_STOPONWARNING, stopOnWarning ? 1 : 0);
      tjt.set(TJ.PARAM_BOTTOMUP, bottomUp ? 1 : 0);
      tjt.set(TJ.PARAM_FASTUPSAMPLE, fastUpsample ? 1 : 0);
      tjt.set(TJ.PARAM_FASTDCT, fastDCT ? 1 : 0);
      tjt.set(TJ.PARAM_SCANLIMIT, maxScans);
      tjt.set(TJ.PARAM_RESTARTBLOCKS, restartIntervalBlocks);
      tjt.set(TJ.PARAM_RESTARTROWS, restartIntervalRows);
      tjt.set(TJ.PARAM_MAXMEMORY, maxMemory);
      tjt.set(TJ.PARAM_MAXPIXELS, maxPixels);
  
      try {
        tjt.setSourceImage(srcBuf, srcSize);
      } catch (TJException e) { handleTJException(e); }
      w = tjt.getWidth();
      h = tjt.getHeight();
      subsamp = tjt.get(TJ.PARAM_SUBSAMP);
      precision = tjt.get(TJ.PARAM_PRECISION);
      cs = tjt.get(TJ.PARAM_COLORSPACE);
      if (tjt.get(TJ.PARAM_PROGRESSIVE) == 1)
        System.out.println("JPEG image is progressive\n");
      if (tjt.get(TJ.PARAM_ARITHMETIC) == 1)
        System.out.println("JPEG image uses arithmetic entropy coding\n");
      tjt.set(TJ.PARAM_PROGRESSIVE, progressive ? 1 : 0);
      tjt.set(TJ.PARAM_ARITHMETIC, arithmetic ? 1 : 0);
  
      if (cs == TJ.CS_YCCK || cs == TJ.CS_CMYK) {
        pf = TJ.PF_CMYK;  ps = TJ.getPixelSize(pf);
      }
  
      if (tjt.get(TJ.PARAM_LOSSLESS) != 0)
        sf = TJ.UNSCALED;
  
      tjt.setScalingFactor(sf);
      tjt.setCroppingRegion(cr);
  
      if (quiet == 1) {
        System.out.println("All performance values in Mpixels/sec\n");
        System.out.format("Pixel     JPEG             %s  %s   Xform   Comp    Decomp  ",
                          (doTile ? "Tile " : "Image"),
                          (doTile ? "Tile " : "Image"));
        if (doYUV)
          System.out.print("Decode");
        System.out.print("\n");
        System.out.print("Format    Format           Width  Height  Perf    Ratio   Perf    ");
        if (doYUV)
          System.out.print("Perf");
        System.out.println("\n");
      } else if (quiet == 0)
        System.out.format(">>>>>  %d-bit JPEG (%s) --> %s (%s)  <<<<<\n",
                          precision, formatName(subsamp, cs), PIXFORMATSTR[pf],
                          bottomUp ? "Bottom-up" : "Top-down");
  
      if (doTile) {
        if (subsamp == TJ.SAMP_UNKNOWN)
          throw new Exception("Could not determine subsampling level of JPEG image");
        minTile = Math.max(TJ.getMCUWidth(subsamp), TJ.getMCUHeight(subsamp));
      }
      for (int tilew = doTile ? minTile : w, tileh = doTile ? minTile : h; ;
           tilew *= 2, tileh *= 2) {
        if (tilew > w)
          tilew = w;
        if (tileh > h)
          tileh = h;
        ntilesw = (w + tilew - 1) / tilew;
        ntilesh = (h + tileh - 1) / tileh;
  
        tw = w;  th = h;  ttilew = tilew;  ttileh = tileh;
        if (quiet == 0) {
          System.out.format("\n%s size: %d x %d", (doTile ? "Tile" : "Image"),
                            ttilew, ttileh);
          if (sf.getNum() != 1 || sf.getDenom() != 1 || isCropped(cr))
            System.out.format(" --> %d x %d", getCroppedWidth(tw),
                              getCroppedHeight(th));
          System.out.println("");
        } else if (quiet == 1) {
          System.out.format("%-4s(%s)  %-14s   ", PIXFORMATSTR[pf],
                            bottomUp ? "BU" : "TD", formatName(subsamp, cs));
          System.out.format("%-5d  %-5d   ", getCroppedWidth(tilew),
                            getCroppedHeight(tileh));
        }
  
        tsubsamp = subsamp;
        if ((xformOpt & TJTransform.OPT_GRAY) != 0)
          tsubsamp = TJ.SAMP_GRAY;
        if (xformOp == TJTransform.OP_TRANSPOSE ||
            xformOp == TJTransform.OP_TRANSVERSE ||
            xformOp == TJTransform.OP_ROT90 ||
            xformOp == TJTransform.OP_ROT270) {
          if (tsubsamp == TJ.SAMP_422)
            tsubsamp = TJ.SAMP_440;
          else if (tsubsamp == TJ.SAMP_440)
            tsubsamp = TJ.SAMP_422;
          else if (tsubsamp == TJ.SAMP_411)
            tsubsamp = TJ.SAMP_441;
          else if (tsubsamp == TJ.SAMP_441)
            tsubsamp = TJ.SAMP_411;
        }
  
        if (doTile || xformOp != TJTransform.OP_NONE || xformOpt != 0 ||
            customFilter != null) {
          if (xformOp == TJTransform.OP_TRANSPOSE ||
              xformOp == TJTransform.OP_TRANSVERSE ||
              xformOp == TJTransform.OP_ROT90 ||
              xformOp == TJTransform.OP_ROT270) {
            tw = h;  th = w;  ttilew = tileh;  ttileh = tilew;
          }
  
          if (xformOp != TJTransform.OP_NONE &&
              xformOp != TJTransform.OP_TRANSPOSE && subsamp == TJ.SAMP_UNKNOWN)
            throw new Exception("Could not determine subsampling level of JPEG image");
          if (xformOp == TJTransform.OP_HFLIP ||
              xformOp == TJTransform.OP_TRANSVERSE ||
              xformOp == TJTransform.OP_ROT90 ||
              xformOp == TJTransform.OP_ROT180)
            tw = tw - (tw % TJ.getMCUWidth(tsubsamp));
          if (xformOp == TJTransform.OP_VFLIP ||
              xformOp == TJTransform.OP_TRANSVERSE ||
              xformOp == TJTransform.OP_ROT180 ||
              xformOp == TJTransform.OP_ROT270)
            th = th - (th % TJ.getMCUHeight(tsubsamp));
          tntilesw = (tw + ttilew - 1) / ttilew;
          tntilesh = (th + ttileh - 1) / ttileh;
  
          TJTransform[] t = new TJTransform[tntilesw * tntilesh];
          jpegBufs = new byte[tntilesw * tntilesh][];
  
          for (y = 0, tile = 0; y < th; y += ttileh) {
            for (x = 0; x < tw; x += ttilew, tile++) {
              t[tile] = new TJTransform();
              t[tile].width = Math.min(ttilew, tw - x);
              t[tile].height = Math.min(ttileh, th - y);
              t[tile].x = x;
              t[tile].y = y;
              t[tile].op = xformOp;
              t[tile].options = xformOpt | TJTransform.OPT_TRIM;
              t[tile].cf = customFilter;
              if ((t[tile].options & TJTransform.OPT_NOOUTPUT) == 0)
                jpegBufs[tile] = new byte[tjt.bufSize(t[tile])];
            }
          }
  
          iter = -1;
          elapsed = 0.;
          while (true) {
            start = getTime();
            try {
              tjt.transform(jpegBufs, t);
            } catch (TJException e) { handleTJException(e); }
            jpegSizes = tjt.getTransformedSizes();
            elapsed += getTime() - start;
            if (iter >= 0) {
              iter++;
              if (elapsed >= benchTime)
                break;
            } else if (elapsed >= warmup) {
              iter = 0;
              elapsed = 0.0;
            }
          }
          t = null;
  
          for (tile = 0, totalJpegSize = 0; tile < tntilesw * tntilesh; tile++)
            totalJpegSize += jpegSizes[tile];
  
          if (quiet != 0) {
            System.out.format("%-6s%s%-6s%s",
                              sigFig((double)(w * h) / 1000000. / elapsed, 4),
                              quiet == 2 ? "\n" : "  ",
                              sigFig((double)(w * h * ps) /
                                     (double)totalJpegSize, 4),
                              quiet == 2 ? "\n" : "  ");
          } else {
            System.out.format("Transform     --> Frame rate:         %f fps\n",
                              1.0 / elapsed);
            System.out.format("                  Output image size:  %d bytes\n",
                              totalJpegSize);
            System.out.format("                  Compression ratio:  %f:1\n",
                              (double)(w * h * ps) / (double)totalJpegSize);
            System.out.format("                  Throughput:         %f Megapixels/sec\n",
                              (double)(w * h) / 1000000. / elapsed);
            System.out.format("                  Output bit stream:  %f Megabits/sec\n",
                              (double)totalJpegSize * 8. / 1000000. / elapsed);
          }
        } else {
          if (quiet == 1)
            System.out.print("N/A     N/A     ");
          jpegBufs = new byte[1][];
          jpegSizes = new int[1];
          jpegBufs[0] = srcBuf;
          jpegSizes[0] = srcSize;
        }
  
        if (w == tilew)
          ttilew = tw;
        if (h == tileh)
          ttileh = th;
        if ((xformOpt & TJTransform.OPT_NOOUTPUT) == 0)
          decomp(jpegBufs, jpegSizes, null, tw, th, tsubsamp, 0, fileName,
                 ttilew, ttileh);
        else if (quiet == 1)
          System.out.println("N/A");
  
        jpegBufs = null;
        jpegSizes = null;
  
        if (tilew == w && tileh == h) break;
      }
    }
  
  
    static void usage() throws Exception {
      int i;
      TJScalingFactor[] scalingFactors = TJ.getScalingFactors();
      int nsf = scalingFactors.length;
      String className = new TJBench().getClass().getName();
  
      System.out.println("\nUSAGE: java " + className);
      System.out.println("       <Inputimage (BMP|PPM|PGM)> <Quality or PSV> [options]\n");
      System.out.println("       java " + className);
      System.out.println("       <Inputimage (JPG)> [options]");
  
      System.out.println("\nGENERAL OPTIONS (CAN BE ABBREVIATED)");
      System.out.println("------------------------------------");
      System.out.println("-benchtime T");
      System.out.println("    Run each benchmark for at least T seconds [default = 5.0]");
      System.out.println("-bmp");
      System.out.println("    Use Windows Bitmap format for output images [default = PPM or PGM]");
      System.out.println("    ** 8-bit data precision only **");
      System.out.println("-bottomup");
      System.out.println("    Use bottom-up row order for packed-pixel source/destination buffers");
      System.out.println("-componly");
      System.out.println("    Stop after running compression tests.  Do not test decompression.");
      System.out.println("-lossless");
      System.out.println("    Generate lossless JPEG images when compressing (implies -subsamp 444).");
      System.out.println("    PSV is the predictor selection value (1-7).");
      System.out.println("-maxmemory N");
      System.out.println("    Memory limit (in megabytes) for intermediate buffers used with progressive");
      System.out.println("    JPEG compression and decompression, Huffman table optimization, lossless");
      System.out.println("    JPEG compression, and lossless transformation [default = no limit]");
      System.out.println("-maxpixels N");
      System.out.println("    Input image size limit (in pixels) [default = no limit]");
      System.out.println("-nowrite");
      System.out.println("    Do not write reference or output images (improves consistency of benchmark");
      System.out.println("    results)");
      System.out.println("-pixelformat {rgb|bgr|rgbx|bgrx|xbgr|xrgb|gray}");
      System.out.println("    Use the specified pixel format for packed-pixel source/destination buffers");
      System.out.println("    [default = BGR]");
      System.out.println("-pixelformat cmyk");
      System.out.println("    Indirectly test YCCK JPEG compression/decompression (use the CMYK pixel");
      System.out.println("    format for packed-pixel source/destination buffers)");
      System.out.println("-precision N");
      System.out.println("    Use N-bit data precision when compressing [N = 2..16; default = 8; if N is");
      System.out.println("    not 8 or 12, then -lossless must also be specified] (-precision 12 implies");
      System.out.println("    -optimize unless -arithmetic is also specified)");
      System.out.println("-quiet");
      System.out.println("    Output results in tabular rather than verbose format");
      System.out.println("-restart N");
      System.out.println("    When compressing or transforming, add a restart marker every N MCU rows");
      System.out.println("    [default = 0 (no restart markers)].  Append 'B' to specify the restart");
      System.out.println("    marker interval in MCUs (lossy only.)");
      System.out.println("-strict");
      System.out.println("    Immediately discontinue the current compression/decompression/transform");
      System.out.println("    operation if a warning (non-fatal error) occurs");
      System.out.println("-tile");
      System.out.println("    Compress/transform the input image into separate JPEG tiles of varying");
      System.out.println("    sizes (useful for measuring JPEG overhead)");
      System.out.println("-warmup T");
      System.out.println("    Run each benchmark for T seconds [default = 1.0] prior to starting the");
      System.out.println("    timer, in order to prime the caches and thus improve the consistency of the");
      System.out.println("    benchmark results");
  
      System.out.println("\nLOSSY JPEG OPTIONS (CAN BE ABBREVIATED)");
      System.out.println("---------------------------------------");
      System.out.println("-arithmetic");
      System.out.println("    Use arithmetic entropy coding in JPEG images generated by compression and");
      System.out.println("    transform operations (can be combined with -progressive)");
      System.out.println("-copy all");
      System.out.println("    Copy all extra markers (including comments, JFIF thumbnails, Exif data, and");
      System.out.println("    ICC profile data) when transforming the input image [default]");
      System.out.println("-copy none");
      System.out.println("    Do not copy any extra markers when transforming the input image");
      System.out.println("-crop WxH+X+Y");
      System.out.println("    Decompress only the specified region of the JPEG image, where W and H are");
      System.out.println("    the width and height of the region (0 = maximum possible width or height)");
      System.out.println("    and X and Y are the left and upper boundary of the region, all specified");
      System.out.println("    relative to the scaled image dimensions.  X must be divible by the scaled");
      System.out.println("    iMCU width.");
      System.out.println("-dct fast");
      System.out.println("    Use less accurate DCT/IDCT algorithm [legacy feature]");
      System.out.println("-dct int");
      System.out.println("    Use more accurate DCT/IDCT algorithm [default]");
      System.out.println("-flip {horizontal|vertical}, -rotate {90|180|270}, -transpose, -transverse");
      System.out.println("    Perform the specified lossless transform operation on the input image prior");
      System.out.println("    to decompression (these operations are mutually exclusive)");
      System.out.println("-grayscale");
      System.out.println("    Transform the input image into a grayscale JPEG image prior to");
      System.out.println("    decompression (can be combined with the other transform operations above)");
      System.out.println("-maxscans N");
      System.out.println("    Refuse to decompress or transform progressive JPEG images that have more");
      System.out.println("    than N scans");
      System.out.println("-nosmooth");
      System.out.println("    Use the fastest chrominance upsampling algorithm available");
      System.out.println("-optimize");
      System.out.println("    Compute optimal Huffman tables for JPEG images generated by compession and");
      System.out.println("    transform operations");
      System.out.println("-progressive");
      System.out.println("    Generate progressive JPEG images when compressing or transforming (can be");
      System.out.println("    combined with -arithmetic; implies -optimize unless -arithmetic is also");
      System.out.println("    specified)");
      System.out.println("-scale M/N");
      System.out.println("    When decompressing, scale the width/height of the JPEG image by a factor of");
      System.out.print("    M/N (M/N = ");
      for (i = 0; i < nsf; i++) {
        System.out.format("%d/%d", scalingFactors[i].getNum(),
                          scalingFactors[i].getDenom());
        if (nsf == 2 && i != nsf - 1)
          System.out.print(" or ");
        else if (nsf > 2) {
          if (i != nsf - 1)
            System.out.print(", ");
          if (i == nsf - 2)
            System.out.print("or ");
        }
        if (i % 11 == 0 && i != 0)
          System.out.print("\n    ");
      }
      System.out.println(")");
      System.out.println("-subsamp S");
      System.out.println("    When compressing, use the specified level of chrominance subsampling");
      System.out.println("    (S = 444, 422, 440, 420, 411, 441, or GRAY) [default = test Grayscale,");
      System.out.println("    4:2:0, 4:2:2, and 4:4:4 in sequence]");
      System.out.println("-yuv");
      System.out.println("    Compress from/decompress to intermediate planar YUV images");
      System.out.println("    ** 8-bit data precision only **");
      System.out.println("-yuvpad N");
      System.out.println("    The number of bytes by which each row in each plane of an intermediate YUV");
      System.out.println("    image is evenly divisible (N must be a power of 2) [default = 1]");
  
      System.out.println("\nNOTE:  If the quality/PSV is specified as a range (e.g. 90-100 or 1-4), a");
      System.out.println("separate test will be performed for all values in the range.\n");
      System.exit(1);
    }
  
  
    static boolean matchArg(String arg, String string, int minChars) {
      if (arg.length() > string.length() || arg.length() < minChars)
        return false;
  
      int cmpChars = Math.max(arg.length(), minChars);
      string = string.substring(0, cmpChars);
  
      return arg.equalsIgnoreCase(string);
    }
  
  
    public static void main(String[] argv) {
      Object srcBuf = null;
      int w = 0, h = 0, minQual = -1, maxQual = -1;
      int minArg = 1, retval = 0;
      int subsamp = -1;
      TJCompressor tjc = null;
  
      try {
  
        if (argv.length < minArg)
          usage();
  
        String tempStr = argv[0].toLowerCase();
        if (tempStr.endsWith(".jpg") || tempStr.endsWith(".jpeg"))
          decompOnly = true;
        if (tempStr.endsWith(".bmp"))
          ext = new String("bmp");
  
        System.out.println("");
  
        if (!decompOnly) {
          minArg = 2;
          if (argv.length < minArg)
            usage();
          String[] quals = argv[1].split("-", 2);
          try {
            minQual = Integer.parseInt(quals[0]);
          } catch (NumberFormatException e) {}
          if (quals.length > 1) {
            try {
              maxQual = Integer.parseInt(quals[1]);
            } catch (NumberFormatException e) {}
          }
          if (maxQual < minQual)
            maxQual = minQual;
        }
  
        if (argv.length > minArg) {
          for (int i = minArg; i < argv.length; i++) {
            if (matchArg(argv[i], "-arithmetic", 2)) {
              System.out.println("Using arithmetic entropy coding\n");
              arithmetic = true;
              xformOpt |= TJTransform.OPT_ARITHMETIC;
            } else if (matchArg(argv[i], "-benchtime", 3) &&
                       i < argv.length - 1) {
              double temp = -1;
  
              try {
                temp = Double.parseDouble(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp > 0.0)
                benchTime = temp;
              else
                usage();
            } else if (argv[i].equalsIgnoreCase("-bgr"))
              pf = TJ.PF_BGR;
            else if (argv[i].equalsIgnoreCase("-bgrx"))
              pf = TJ.PF_BGRX;
            else if (matchArg(argv[i], "-bottomup", 3))
              bottomUp = true;
            else if (matchArg(argv[i], "-bmp", 2)) {
              if (ext == null)
                ext = new String("bmp");
            } else if (matchArg(argv[i], "-cmyk", 3))
              pf = TJ.PF_CMYK;
            else if (matchArg(argv[i], "-componly", 4))
              compOnly = true;
            else if (matchArg(argv[i], "-copynone", 6))
              xformOpt |= TJTransform.OPT_COPYNONE;
            else if (matchArg(argv[i], "-crop", 3) && i < argv.length - 1) {
              int temp1 = -1, temp2 = -1, temp3 = -1, temp4 = -1;
              Scanner scanner = new Scanner(argv[++i]).useDelimiter("x|X|\\+");
  
              try {
                temp1 = scanner.nextInt();
                temp2 = scanner.nextInt();
                temp3 = scanner.nextInt();
                temp4 = scanner.nextInt();
              } catch (Exception e) {}
  
              if (temp1 < 0 || temp2 < 0 || temp3 < 0 || temp4 < 0)
                usage();
              cr.width = temp1;  cr.height = temp2;  cr.x = temp3;  cr.y = temp4;
            } else if (matchArg(argv[i], "-custom", 3))
              customFilter = new DummyDCTFilter();
            else if (matchArg(argv[i], "-copy", 2) && i < argv.length - 1) {
              i++;
              if (matchArg(argv[i], "none", 1))
                xformOpt |= TJTransform.OPT_COPYNONE;
              else if (!matchArg(argv[i], "all", 1))
                usage();
            } else if (matchArg(argv[i], "-dct", 2) && i < argv.length - 1) {
              i++;
              if (matchArg(argv[i], "fast", 1)) {
                System.out.println("Using less accurate DCT/IDCT algorithm\n");
                fastDCT = true;
              } else if (!matchArg(argv[i], "int", 1))
                usage();
            } else if (matchArg(argv[i], "-fastdct", 6)) {
              System.out.println("Using less accurate DCT/IDCT algorithm\n");
              fastDCT = true;
            } else if (matchArg(argv[i], "-fastupsample", 6)) {
              System.out.println("Using fastest upsampling algorithm\n");
              fastUpsample = true;
            } else if (matchArg(argv[i], "-flip", 2) && i < argv.length - 1) {
              i++;
              if (matchArg(argv[i], "horizontal", 1))
                xformOp = TJTransform.OP_HFLIP;
              else if (matchArg(argv[i], "vertical", 1))
                xformOp = TJTransform.OP_VFLIP;
              else
                usage();
            } else if (matchArg(argv[i], "-grayscale", 2) ||
                       matchArg(argv[i], "-greyscale", 2))
              xformOpt |= TJTransform.OPT_GRAY;
            else if (matchArg(argv[i], "-hflip", 2))
              xformOp = TJTransform.OP_HFLIP;
            else if (matchArg(argv[i], "-limitscans", 3))
              maxScans = 500;
            else if (matchArg(argv[i], "-lossless", 2))
              lossless = true;
            else if (matchArg(argv[i], "-maxpixels", 5) && i < argv.length - 1) {
              int temp = -1;
  
              try {
                temp = Integer.parseInt(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp < 0)
                usage();
              maxPixels = temp;
            } else if (matchArg(argv[i], "-maxscans", 5) &&
                       i < argv.length - 1) {
              int temp = -1;
  
              try {
                temp = Integer.parseInt(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp < 0)
                usage();
              maxScans = temp;
            } else if (matchArg(argv[i], "-maxmemory", 4) &&
                       i < argv.length - 1) {
              int temp = -1;
  
              try {
                temp = Integer.parseInt(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp < 0)
                usage();
              maxMemory = temp;
            } else if (matchArg(argv[i], "-nooutput", 4))
              xformOpt |= TJTransform.OPT_NOOUTPUT;
            else if (matchArg(argv[i], "-nosmooth", 4)) {
              System.out.println("Using fastest upsampling algorithm\n");
              fastUpsample = true;
            } else if (matchArg(argv[i], "-nowrite", 4))
              write = false;
            else if (matchArg(argv[i], "-optimize", 2) ||
                     matchArg(argv[i], "-optimise", 2)) {
              optimize = true;
              xformOpt |= TJTransform.OPT_OPTIMIZE;
            } else if (matchArg(argv[i], "-pixelformat", 3) &&
                       i < argv.length - 1) {
              i++;
              if (argv[i].equalsIgnoreCase("bgr"))
                pf = TJ.PF_BGR;
              else if (argv[i].equalsIgnoreCase("bgrx"))
                pf = TJ.PF_BGRX;
              else if (matchArg(argv[i], "cmyk", 1))
                pf = TJ.PF_CMYK;
              else if (matchArg(argv[i], "gray", 1) ||
                       matchArg(argv[i], "grey", 1))
                pf = TJ.PF_GRAY;
              else if (argv[i].equalsIgnoreCase("rgb"))
                pf = TJ.PF_RGB;
              else if (argv[i].equalsIgnoreCase("rgbx"))
                pf = TJ.PF_RGBX;
              else if (argv[i].equalsIgnoreCase("xbgr"))
                pf = TJ.PF_XBGR;
              else if (argv[i].equalsIgnoreCase("xrgb"))
                pf = TJ.PF_XRGB;
              else
                usage();
            } else if (matchArg(argv[i], "-precision", 4) &&
                       i < argv.length - 1) {
              int temp = 0;
  
              try {
                temp = Integer.parseInt(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp >= 2 && temp <= 16)
                precision = temp;
              else
                usage();
            } else if (matchArg(argv[i], "-progressive", 2)) {
              System.out.println("Generating progressive JPEG images\n");
              progressive = true;
              xformOpt |= TJTransform.OPT_PROGRESSIVE;
            } else if (argv[i].equalsIgnoreCase("-qq"))
              quiet = 2;
            else if (matchArg(argv[i], "-quiet", 2))
              quiet = 1;
            else if (argv[i].equalsIgnoreCase("-rgb"))
              pf = TJ.PF_RGB;
            else if (argv[i].equalsIgnoreCase("-rgbx"))
              pf = TJ.PF_RGBX;
            else if (argv[i].equalsIgnoreCase("-rot90"))
              xformOp = TJTransform.OP_ROT90;
            else if (argv[i].equalsIgnoreCase("-rot180"))
              xformOp = TJTransform.OP_ROT180;
            else if (argv[i].equalsIgnoreCase("-rot270"))
              xformOp = TJTransform.OP_ROT270;
            else if (matchArg(argv[i], "-rotate", 3) && i < argv.length - 1) {
              i++;
              if (matchArg(argv[i], "90", 2))
                xformOp = TJTransform.OP_ROT90;
              else if (matchArg(argv[i], "180", 3))
                xformOp = TJTransform.OP_ROT180;
              else if (matchArg(argv[i], "270", 3))
                xformOp = TJTransform.OP_ROT270;
              else
                usage();
            } else if (matchArg(argv[i], "-restart", 2) && i < argv.length - 1) {
              int temp = -1;
              String arg = argv[++i];
              Scanner scanner = new Scanner(arg).useDelimiter("b|B");
  
              try {
                temp = scanner.nextInt();
              } catch (Exception e) {}
  
              if (temp < 0 || temp > 65535 || scanner.hasNext())
                usage();
              if (arg.endsWith("B") || arg.endsWith("b"))
                restartIntervalBlocks = temp;
              else
                restartIntervalRows = temp;
            } else if (matchArg(argv[i], "-strict", 3) ||
                       matchArg(argv[i], "-stoponwarning", 3))
              stopOnWarning = true;
            else if (matchArg(argv[i], "-subsamp", 3) && i < argv.length - 1) {
              i++;
              if (matchArg(argv[i], "gray", 1) || matchArg(argv[i], "grey", 1))
                subsamp = TJ.SAMP_GRAY;
              else if (argv[i].equals("444"))
                subsamp = TJ.SAMP_444;
              else if (argv[i].equals("422"))
                subsamp = TJ.SAMP_422;
              else if (argv[i].equals("440"))
                subsamp = TJ.SAMP_440;
              else if (argv[i].equals("420"))
                subsamp = TJ.SAMP_420;
              else if (argv[i].equals("411"))
                subsamp = TJ.SAMP_411;
              else if (argv[i].equals("441"))
                subsamp = TJ.SAMP_441;
              else
                usage();
            } else if (matchArg(argv[i], "-scale", 2) && i < argv.length - 1) {
              int temp1 = 0, temp2 = 0;
              boolean match = false, scanned = true;
              Scanner scanner = new Scanner(argv[++i]).useDelimiter("/");
  
              try {
                temp1 = scanner.nextInt();
                temp2 = scanner.nextInt();
              } catch (Exception e) {}
              if (temp2 <= 0) temp2 = 1;
              if (temp1 > 0) {
                TJScalingFactor[] scalingFactors = TJ.getScalingFactors();
  
                for (int j = 0; j < scalingFactors.length; j++) {
                  if ((double)temp1 / (double)temp2 ==
                      (double)scalingFactors[j].getNum() /
                      (double)scalingFactors[j].getDenom()) {
                    sf = scalingFactors[j];
                    match = true;  break;
                  }
                }
                if (!match) usage();
              } else
                usage();
            } else if (matchArg(argv[i], "-tile", 3)) {
              doTile = true;  xformOpt |= TJTransform.OPT_CROP;
            } else if (matchArg(argv[i], "-transverse", 7))
              xformOp = TJTransform.OP_TRANSVERSE;
            else if (matchArg(argv[i], "-transpose", 2))
              xformOp = TJTransform.OP_TRANSPOSE;
            else if (matchArg(argv[i], "-vflip", 2))
              xformOp = TJTransform.OP_VFLIP;
            else if (matchArg(argv[i], "-warmup", 2) && i < argv.length - 1) {
              double temp = -1;
  
              try {
                temp = Double.parseDouble(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp >= 0.0) {
                warmup = temp;
                System.out.format("Warmup time = %.1f seconds\n\n", warmup);
              } else
                usage();
            } else if (matchArg(argv[i], "-xbgr", 3))
              pf = TJ.PF_XBGR;
            else if (matchArg(argv[i], "-xrgb", 3))
              pf = TJ.PF_XRGB;
            else if (argv[i].equalsIgnoreCase("-yuv")) {
              System.out.println("Testing planar YUV encoding/decoding\n");
              doYUV = true;
            } else if (matchArg(argv[i], "-yuvpad", 5) && i < argv.length - 1) {
              int temp = 0;
  
              try {
                temp = Integer.parseInt(argv[++i]);
              } catch (NumberFormatException e) {}
              if (temp >= 1 && (temp & (temp - 1)) == 0)
                yuvAlign = temp;
              else
                usage();
            } else usage();
          }
        }
  
        if (optimize && !progressive && !arithmetic && !lossless &&
            precision != 12)
          System.out.println("Computing optimal Huffman tables\n");
  
        if (lossless)
          subsamp = TJ.SAMP_444;
        if (pf == TJ.PF_GRAY) {
          if (ext == null)
            ext = new String("pgm");
          subsamp = TJ.SAMP_GRAY;
        }
  
        if (ext == null)
          ext = new String("ppm");
  
        if ((precision != 8 && precision != 12) && !lossless)
          throw new Exception(
            "-lossless must be specified along with -precision " + precision);
        if (precision != 8 && doYUV)
          throw new Exception("-yuv requires 8-bit data precision");
        if (lossless && doYUV)
          throw new Exception("ERROR: -lossless and -yuv are incompatible");
  
        if ((sf.getNum() != 1 || sf.getDenom() != 1) && doTile) {
          System.out.println("Disabling tiled compression/decompression tests, because those tests do not");
          System.out.println("work when scaled decompression is enabled.\n");
          doTile = false;
          xformOpt &= (~TJTransform.OPT_CROP);
        }
  
        if (isCropped(cr)) {
          if (!decompOnly)
            throw new Exception("ERROR: Partial image decompression can only be enabled for JPEG input images");
          if (doTile) {
            System.out.println("Disabling tiled compression/decompression tests, because those tests do not");
            System.out.println("work when partial image decompression is enabled.\n");
            doTile = false;
            xformOpt &= (~TJTransform.OPT_CROP);
          }
          if (doYUV)
            throw new Exception("ERROR: -crop and -yuv are incompatible");
        }
  
        if (!decompOnly) {
          tjc = new TJCompressor();
          tjc.set(TJ.PARAM_STOPONWARNING, stopOnWarning ? 1 : 0);
          tjc.set(TJ.PARAM_BOTTOMUP, bottomUp ? 1 : 0);
          tjc.set(TJ.PARAM_PRECISION, precision);
          tjc.set(TJ.PARAM_MAXPIXELS, maxPixels);
  
          tjc.loadSourceImage(argv[0], 1, pf);
          srcBuf = tjc.getSourceBuf();
          w = tjc.getWidth();
          h = tjc.getHeight();
          pf = tjc.getPixelFormat();
          int index = -1;
          if ((index = argv[0].lastIndexOf('.')) >= 0)
            argv[0] = argv[0].substring(0, index);
        }
  
        if (quiet == 1 && !decompOnly) {
          System.out.println("All performance values in Mpixels/sec\n");
          System.out.format("Pixel     JPEG      JPEG  %s  %s   ",
                            (doTile ? "Tile " : "Image"),
                            (doTile ? "Tile " : "Image"));
          if (doYUV)
            System.out.print("Encode  ");
          System.out.print("Comp    Comp    Decomp  ");
          if (doYUV)
            System.out.print("Decode");
          System.out.print("\n");
          System.out.format("Format    Format    %s  Width  Height  ",
                            lossless ? "PSV " : "Qual");
          if (doYUV)
            System.out.print("Perf    ");
          System.out.print("Perf    Ratio   Perf    ");
          if (doYUV)
            System.out.print("Perf");
          System.out.println("\n");
        }
  
        if (decompOnly) {
          decompTest(argv[0]);
          System.out.println("");
          System.exit(retval);
        }
  
        System.gc();
        if (lossless) {
          if (minQual < 1 || minQual > 7 || maxQual < 1 || maxQual > 7)
            throw new Exception("PSV must be between 1 and 7.");
        } else {
          if (minQual < 1 || minQual > 100 || maxQual < 1 || maxQual > 100)
            throw new Exception("Quality must be between 1 and 100.");
        }
        if (subsamp >= 0 && subsamp < TJ.NUMSAMP) {
          for (int i = maxQual; i >= minQual; i--)
            fullTest(tjc, srcBuf, w, h, subsamp, i, argv[0]);
          System.out.println("");
        } else {
          if (pf != TJ.PF_CMYK) {
            for (int i = maxQual; i >= minQual; i--)
              fullTest(tjc, srcBuf, w, h, TJ.SAMP_GRAY, i, argv[0]);
            System.out.println("");
            System.gc();
          }
          for (int i = maxQual; i >= minQual; i--)
            fullTest(tjc, srcBuf, w, h, TJ.SAMP_420, i, argv[0]);
          System.out.println("");
          System.gc();
          for (int i = maxQual; i >= minQual; i--)
            fullTest(tjc, srcBuf, w, h, TJ.SAMP_422, i, argv[0]);
          System.out.println("");
          System.gc();
          for (int i = maxQual; i >= minQual; i--)
            fullTest(tjc, srcBuf, w, h, TJ.SAMP_444, i, argv[0]);
          System.out.println("");
        }
  
      } catch (Exception e) {
        if (e instanceof TJException) {
          TJException tje = (TJException)e;
  
          System.out.println((tje.getErrorCode() == TJ.ERR_WARNING ?
                              "WARNING: " : "ERROR: ") + tje.getMessage());
        } else
          System.out.println("ERROR: " + e.getMessage());
        e.printStackTrace();
        retval = -1;
      }
  
      System.exit(retval);
    }
  
  }
  

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