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

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• Hash : eb8bba62
  Author :
  Date : 2018-05-16T10:49:09
  

  Java: Further style refinements
  
  (detected by enabling additional checkstyle modules)
  
  This commit also removes unnecessary uses of the "private" modifier in
  the Java tests/examples.  The default access modifier disallows access
  outside of the package, and none of these classes is in a package.  The
  only reason we use "private" with member variables in these classes is
  to make checkstyle happy, because we want it to enforce that behavior in
  the TurboJPEG API code.
  

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• java/TJUnitTest.java

• /*
   * Copyright (C)2011-2018 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 tests the various code paths in the TurboJPEG JNI Wrapper
   */
  
  import java.io.*;
  import java.util.*;
  import java.awt.image.*;
  import javax.imageio.*;
  import java.nio.*;
  import org.libjpegturbo.turbojpeg.*;
  
  @SuppressWarnings("checkstyle:JavadocType")
  final class TJUnitTest {
  
    private TJUnitTest() {}
  
    static final String CLASS_NAME =
      new TJUnitTest().getClass().getName();
  
    static void usage() {
      System.out.println("\nUSAGE: java " + CLASS_NAME + " [options]\n");
      System.out.println("Options:");
      System.out.println("-yuv = test YUV encoding/decoding support");
      System.out.println("-noyuvpad = do not pad each line of each Y, U, and V plane to the nearest");
      System.out.println("            4-byte boundary");
      System.out.println("-bi = test BufferedImage support\n");
      System.exit(1);
    }
  
    static final String[] SUBNAME_LONG = {
      "4:4:4", "4:2:2", "4:2:0", "GRAY", "4:4:0", "4:1:1"
    };
    static final String[] SUBNAME = {
      "444", "422", "420", "GRAY", "440", "411"
    };
  
    static final String[] PIXFORMATSTR = {
      "RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "Grayscale",
      "RGBA", "BGRA", "ABGR", "ARGB", "CMYK"
    };
  
    static final int[] FORMATS_3BYTE = {
      TJ.PF_RGB, TJ.PF_BGR
    };
    static final int[] FORMATS_3BYTEBI = {
      BufferedImage.TYPE_3BYTE_BGR
    };
    static final int[] FORMATS_4BYTE = {
      TJ.PF_RGBX, TJ.PF_BGRX, TJ.PF_XBGR, TJ.PF_XRGB, TJ.PF_CMYK
    };
    static final int[] FORMATS_4BYTEBI = {
      BufferedImage.TYPE_INT_BGR, BufferedImage.TYPE_INT_RGB,
      BufferedImage.TYPE_4BYTE_ABGR, BufferedImage.TYPE_4BYTE_ABGR_PRE,
      BufferedImage.TYPE_INT_ARGB, BufferedImage.TYPE_INT_ARGB_PRE
    };
    static final int[] FORMATS_GRAY = {
      TJ.PF_GRAY
    };
    static final int[] FORMATS_GRAYBI = {
      BufferedImage.TYPE_BYTE_GRAY
    };
    static final int[] FORMATS_RGB = {
      TJ.PF_RGB
    };
  
    private static boolean doYUV = false;
    private static int pad = 4;
    private static boolean bi = false;
  
    private static int exitStatus = 0;
  
    static int biTypePF(int biType) {
      ByteOrder byteOrder = ByteOrder.nativeOrder();
      switch (biType) {
      case BufferedImage.TYPE_3BYTE_BGR:
        return TJ.PF_BGR;
      case BufferedImage.TYPE_4BYTE_ABGR:
      case BufferedImage.TYPE_4BYTE_ABGR_PRE:
        return TJ.PF_ABGR;
      case BufferedImage.TYPE_BYTE_GRAY:
        return TJ.PF_GRAY;
      case BufferedImage.TYPE_INT_BGR:
        return TJ.PF_RGBX;
      case BufferedImage.TYPE_INT_RGB:
        return TJ.PF_BGRX;
      case BufferedImage.TYPE_INT_ARGB:
      case BufferedImage.TYPE_INT_ARGB_PRE:
        return TJ.PF_BGRA;
      default:
        return 0;
      }
    }
  
    static String biTypeStr(int biType) {
      switch (biType) {
      case BufferedImage.TYPE_3BYTE_BGR:
        return "3BYTE_BGR";
      case BufferedImage.TYPE_4BYTE_ABGR:
        return "4BYTE_ABGR";
      case BufferedImage.TYPE_4BYTE_ABGR_PRE:
        return "4BYTE_ABGR_PRE";
      case BufferedImage.TYPE_BYTE_GRAY:
        return "BYTE_GRAY";
      case BufferedImage.TYPE_INT_BGR:
        return "INT_BGR";
      case BufferedImage.TYPE_INT_RGB:
        return "INT_RGB";
      case BufferedImage.TYPE_INT_ARGB:
        return "INT_ARGB";
      case BufferedImage.TYPE_INT_ARGB_PRE:
        return "INT_ARGB_PRE";
      default:
        return "Unknown";
      }
    }
  
    static void initBuf(byte[] buf, int w, int pitch, int h, int pf, int flags)
                        throws Exception {
      int roffset = TJ.getRedOffset(pf);
      int goffset = TJ.getGreenOffset(pf);
      int boffset = TJ.getBlueOffset(pf);
      int aoffset = TJ.getAlphaOffset(pf);
      int ps = TJ.getPixelSize(pf);
      int index, row, col, halfway = 16;
  
      if (pf == TJ.PF_GRAY) {
        Arrays.fill(buf, (byte)0);
        for (row = 0; row < h; row++) {
          for (col = 0; col < w; col++) {
            if ((flags & TJ.FLAG_BOTTOMUP) != 0)
              index = pitch * (h - row - 1) + col;
            else
              index = pitch * row + col;
            if (((row / 8) + (col / 8)) % 2 == 0)
              buf[index] = (row < halfway) ? (byte)255 : 0;
            else
              buf[index] = (row < halfway) ? 76 : (byte)226;
          }
        }
        return;
      }
      if (pf == TJ.PF_CMYK) {
        Arrays.fill(buf, (byte)255);
        for (row = 0; row < h; row++) {
          for (col = 0; col < w; col++) {
            if ((flags & TJ.FLAG_BOTTOMUP) != 0)
              index = (h - row - 1) * w + col;
            else
              index = row * w + col;
            if (((row / 8) + (col / 8)) % 2 == 0) {
              if (row >= halfway) buf[index * ps + 3] = 0;
            } else {
              buf[index * ps + 2] = 0;
              if (row < halfway)
                buf[index * ps + 1] = 0;
            }
          }
        }
        return;
      }
  
      Arrays.fill(buf, (byte)0);
      for (row = 0; row < h; row++) {
        for (col = 0; col < w; col++) {
          if ((flags & TJ.FLAG_BOTTOMUP) != 0)
            index = pitch * (h - row - 1) + col * ps;
          else
            index = pitch * row + col * ps;
          if (((row / 8) + (col / 8)) % 2 == 0) {
            if (row < halfway) {
              buf[index + roffset] = (byte)255;
              buf[index + goffset] = (byte)255;
              buf[index + boffset] = (byte)255;
            }
          } else {
            buf[index + roffset] = (byte)255;
            if (row >= halfway)
              buf[index + goffset] = (byte)255;
          }
          if (aoffset >= 0)
            buf[index + aoffset] = (byte)255;
        }
      }
    }
  
    static void initIntBuf(int[] buf, int w, int pitch, int h, int pf, int flags)
                           throws Exception {
      int rshift = TJ.getRedOffset(pf) * 8;
      int gshift = TJ.getGreenOffset(pf) * 8;
      int bshift = TJ.getBlueOffset(pf) * 8;
      int ashift = TJ.getAlphaOffset(pf) * 8;
      int index, row, col, halfway = 16;
  
      Arrays.fill(buf, 0);
      for (row = 0; row < h; row++) {
        for (col = 0; col < w; col++) {
          if ((flags & TJ.FLAG_BOTTOMUP) != 0)
            index = pitch * (h - row - 1) + col;
          else
            index = pitch * row + col;
          if (((row / 8) + (col / 8)) % 2 == 0) {
            if (row < halfway) {
              buf[index] |= (255 << rshift);
              buf[index] |= (255 << gshift);
              buf[index] |= (255 << bshift);
            }
          } else {
            buf[index] |= (255 << rshift);
            if (row >= halfway)
              buf[index] |= (255 << gshift);
          }
          if (ashift >= 0)
            buf[index] |= (255 << ashift);
        }
      }
    }
  
    static void initImg(BufferedImage img, int pf, int flags) throws Exception {
      WritableRaster wr = img.getRaster();
      int imgType = img.getType();
  
      if (imgType == BufferedImage.TYPE_INT_RGB ||
          imgType == BufferedImage.TYPE_INT_BGR ||
          imgType == BufferedImage.TYPE_INT_ARGB ||
          imgType == BufferedImage.TYPE_INT_ARGB_PRE) {
        SinglePixelPackedSampleModel sm =
          (SinglePixelPackedSampleModel)img.getSampleModel();
        int pitch = sm.getScanlineStride();
        DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
        int[] buf = db.getData();
        initIntBuf(buf, img.getWidth(), pitch, img.getHeight(), pf, flags);
      } else {
        ComponentSampleModel sm = (ComponentSampleModel)img.getSampleModel();
        int pitch = sm.getScanlineStride();
        DataBufferByte db = (DataBufferByte)wr.getDataBuffer();
        byte[] buf = db.getData();
        initBuf(buf, img.getWidth(), pitch, img.getHeight(), pf, flags);
      }
    }
  
    static void checkVal(int row, int col, int v, String vname, int cv)
                         throws Exception {
      v = (v < 0) ? v + 256 : v;
      if (v < cv - 1 || v > cv + 1) {
        throw new Exception("Comp. " + vname + " at " + row + "," + col +
                            " should be " + cv + ", not " + v);
      }
    }
  
    static void checkVal0(int row, int col, int v, String vname)
                          throws Exception {
      v = (v < 0) ? v + 256 : v;
      if (v > 1) {
        throw new Exception("Comp. " + vname + " at " + row + "," + col +
                            " should be 0, not " + v);
      }
    }
  
    static void checkVal255(int row, int col, int v, String vname)
                            throws Exception {
      v = (v < 0) ? v + 256 : v;
      if (v < 254) {
        throw new Exception("Comp. " + vname + " at " + row + "," + col +
                            " should be 255, not " + v);
      }
    }
  
    static int checkBuf(byte[] buf, int w, int pitch, int h, int pf, int subsamp,
                        TJScalingFactor sf, int flags) throws Exception {
      int roffset = TJ.getRedOffset(pf);
      int goffset = TJ.getGreenOffset(pf);
      int boffset = TJ.getBlueOffset(pf);
      int aoffset = TJ.getAlphaOffset(pf);
      int ps = TJ.getPixelSize(pf);
      int index, row, col, retval = 1;
      int halfway = 16 * sf.getNum() / sf.getDenom();
      int blockSize = 8 * sf.getNum() / sf.getDenom();
  
      try {
  
        if (pf == TJ.PF_GRAY)
          roffset = goffset = boffset = 0;
  
        if (pf == TJ.PF_CMYK) {
          for (row = 0; row < h; row++) {
            for (col = 0; col < w; col++) {
              if ((flags & TJ.FLAG_BOTTOMUP) != 0)
                index = (h - row - 1) * w + col;
              else
                index = row * w + col;
              byte c = buf[index * ps];
              byte m = buf[index * ps + 1];
              byte y = buf[index * ps + 2];
              byte k = buf[index * ps + 3];
              checkVal255(row, col, c, "C");
              if (((row / blockSize) + (col / blockSize)) % 2 == 0) {
                checkVal255(row, col, m, "M");
                checkVal255(row, col, y, "Y");
                if (row < halfway)
                  checkVal255(row, col, k, "K");
                else
                  checkVal0(row, col, k, "K");
              } else {
                checkVal0(row, col, y, "Y");
                checkVal255(row, col, k, "K");
                if (row < halfway)
                  checkVal0(row, col, m, "M");
                else
                  checkVal255(row, col, m, "M");
              }
            }
          }
          return 1;
        }
  
        for (row = 0; row < halfway; row++) {
          for (col = 0; col < w; col++) {
            if ((flags & TJ.FLAG_BOTTOMUP) != 0)
              index = pitch * (h - row - 1) + col * ps;
            else
              index = pitch * row + col * ps;
            byte r = buf[index + roffset];
            byte g = buf[index + goffset];
            byte b = buf[index + boffset];
            byte a = aoffset >= 0 ? buf[index + aoffset] : (byte)255;
            if (((row / blockSize) + (col / blockSize)) % 2 == 0) {
              if (row < halfway) {
                checkVal255(row, col, r, "R");
                checkVal255(row, col, g, "G");
                checkVal255(row, col, b, "B");
              } else {
                checkVal0(row, col, r, "R");
                checkVal0(row, col, g, "G");
                checkVal0(row, col, b, "B");
              }
            } else {
              if (subsamp == TJ.SAMP_GRAY) {
                if (row < halfway) {
                  checkVal(row, col, r, "R", 76);
                  checkVal(row, col, g, "G", 76);
                  checkVal(row, col, b, "B", 76);
                } else {
                  checkVal(row, col, r, "R", 226);
                  checkVal(row, col, g, "G", 226);
                  checkVal(row, col, b, "B", 226);
                }
              } else {
                checkVal255(row, col, r, "R");
                if (row < halfway) {
                  checkVal0(row, col, g, "G");
                } else {
                  checkVal255(row, col, g, "G");
                }
                checkVal0(row, col, b, "B");
              }
            }
            checkVal255(row, col, a, "A");
          }
        }
      } catch (Exception e) {
        System.out.println("\n" + e.getMessage());
        retval = 0;
      }
  
      if (retval == 0) {
        for (row = 0; row < h; row++) {
          for (col = 0; col < w; col++) {
            if (pf == TJ.PF_CMYK) {
              int c = buf[pitch * row + col * ps];
              int m = buf[pitch * row + col * ps + 1];
              int y = buf[pitch * row + col * ps + 2];
              int k = buf[pitch * row + col * ps + 3];
              if (c < 0) c += 256;
              if (m < 0) m += 256;
              if (y < 0) y += 256;
              if (k < 0) k += 256;
              System.out.format("%3d/%3d/%3d/%3d ", c, m, y, k);
            } else {
              int r = buf[pitch * row + col * ps + roffset];
              int g = buf[pitch * row + col * ps + goffset];
              int b = buf[pitch * row + col * ps + boffset];
              if (r < 0) r += 256;
              if (g < 0) g += 256;
              if (b < 0) b += 256;
              System.out.format("%3d/%3d/%3d ", r, g, b);
            }
          }
          System.out.print("\n");
        }
      }
      return retval;
    }
  
    static int checkIntBuf(int[] buf, int w, int pitch, int h, int pf,
                           int subsamp, TJScalingFactor sf, int flags)
                           throws Exception {
      int rshift = TJ.getRedOffset(pf) * 8;
      int gshift = TJ.getGreenOffset(pf) * 8;
      int bshift = TJ.getBlueOffset(pf) * 8;
      int ashift = TJ.getAlphaOffset(pf) * 8;
      int index, row, col, retval = 1;
      int halfway = 16 * sf.getNum() / sf.getDenom();
      int blockSize = 8 * sf.getNum() / sf.getDenom();
  
      try {
        for (row = 0; row < halfway; row++) {
          for (col = 0; col < w; col++) {
            if ((flags & TJ.FLAG_BOTTOMUP) != 0)
              index = pitch * (h - row - 1) + col;
            else
              index = pitch * row + col;
            int r = (buf[index] >> rshift) & 0xFF;
            int g = (buf[index] >> gshift) & 0xFF;
            int b = (buf[index] >> bshift) & 0xFF;
            int a = ashift >= 0 ? (buf[index] >> ashift) & 0xFF : 255;
            if (((row / blockSize) + (col / blockSize)) % 2 == 0) {
              if (row < halfway) {
                checkVal255(row, col, r, "R");
                checkVal255(row, col, g, "G");
                checkVal255(row, col, b, "B");
              } else {
                checkVal0(row, col, r, "R");
                checkVal0(row, col, g, "G");
                checkVal0(row, col, b, "B");
              }
            } else {
              if (subsamp == TJ.SAMP_GRAY) {
                if (row < halfway) {
                  checkVal(row, col, r, "R", 76);
                  checkVal(row, col, g, "G", 76);
                  checkVal(row, col, b, "B", 76);
                } else {
                  checkVal(row, col, r, "R", 226);
                  checkVal(row, col, g, "G", 226);
                  checkVal(row, col, b, "B", 226);
                }
              } else {
                checkVal255(row, col, r, "R");
                if (row < halfway) {
                  checkVal0(row, col, g, "G");
                } else {
                  checkVal255(row, col, g, "G");
                }
                checkVal0(row, col, b, "B");
              }
            }
            checkVal255(row, col, a, "A");
          }
        }
      } catch (Exception e) {
        System.out.println("\n" + e.getMessage());
        retval = 0;
      }
  
      if (retval == 0) {
        for (row = 0; row < h; row++) {
          for (col = 0; col < w; col++) {
            int r = (buf[pitch * row + col] >> rshift) & 0xFF;
            int g = (buf[pitch * row + col] >> gshift) & 0xFF;
            int b = (buf[pitch * row + col] >> bshift) & 0xFF;
            if (r < 0) r += 256;
            if (g < 0) g += 256;
            if (b < 0) b += 256;
            System.out.format("%3d/%3d/%3d ", r, g, b);
          }
          System.out.print("\n");
        }
      }
      return retval;
    }
  
    static int checkImg(BufferedImage img, int pf, int subsamp,
                        TJScalingFactor sf, int flags) throws Exception {
      WritableRaster wr = img.getRaster();
      int imgType = img.getType();
      if (imgType == BufferedImage.TYPE_INT_RGB ||
          imgType == BufferedImage.TYPE_INT_BGR ||
          imgType == BufferedImage.TYPE_INT_ARGB ||
          imgType == BufferedImage.TYPE_INT_ARGB_PRE) {
        SinglePixelPackedSampleModel sm =
          (SinglePixelPackedSampleModel)img.getSampleModel();
        int pitch = sm.getScanlineStride();
        DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
        int[] buf = db.getData();
        return checkIntBuf(buf, img.getWidth(), pitch, img.getHeight(), pf,
                           subsamp, sf, flags);
      } else {
        ComponentSampleModel sm = (ComponentSampleModel)img.getSampleModel();
        int pitch = sm.getScanlineStride();
        DataBufferByte db = (DataBufferByte)wr.getDataBuffer();
        byte[] buf = db.getData();
        return checkBuf(buf, img.getWidth(), pitch, img.getHeight(), pf, subsamp,
                        sf, flags);
      }
    }
  
    static int pad(int v, int p) {
      return ((v + (p) - 1) & (~((p) - 1)));
    }
  
    static int checkBufYUV(byte[] buf, int size, int w, int h, int subsamp,
                           TJScalingFactor sf) throws Exception {
      int row, col;
      int hsf = TJ.getMCUWidth(subsamp) / 8, vsf = TJ.getMCUHeight(subsamp) / 8;
      int pw = pad(w, hsf), ph = pad(h, vsf);
      int cw = pw / hsf, ch = ph / vsf;
      int ypitch = pad(pw, pad), uvpitch = pad(cw, pad);
      int retval = 1;
      int correctsize = ypitch * ph +
                        (subsamp == TJ.SAMP_GRAY ? 0 : uvpitch * ch * 2);
      int halfway = 16 * sf.getNum() / sf.getDenom();
      int blockSize = 8 * sf.getNum() / sf.getDenom();
  
      try {
        if (size != correctsize)
          throw new Exception("Incorrect size " + size + ".  Should be " +
                              correctsize);
  
        for (row = 0; row < ph; row++) {
          for (col = 0; col < pw; col++) {
            byte y = buf[ypitch * row + col];
            if (((row / blockSize) + (col / blockSize)) % 2 == 0) {
              if (row < halfway)
                checkVal255(row, col, y, "Y");
              else
                checkVal0(row, col, y, "Y");
            } else {
              if (row < halfway)
                checkVal(row, col, y, "Y", 76);
              else
                checkVal(row, col, y, "Y", 226);
            }
          }
        }
        if (subsamp != TJ.SAMP_GRAY) {
          halfway = 16 / vsf * sf.getNum() / sf.getDenom();
          for (row = 0; row < ch; row++) {
            for (col = 0; col < cw; col++) {
              byte u = buf[ypitch * ph + (uvpitch * row + col)],
                   v = buf[ypitch * ph + uvpitch * ch + (uvpitch * row + col)];
              if (((row * vsf / blockSize) + (col * hsf / blockSize)) % 2 == 0) {
                checkVal(row, col, u, "U", 128);
                checkVal(row, col, v, "V", 128);
              } else {
                if (row < halfway) {
                  checkVal(row, col, u, "U", 85);
                  checkVal255(row, col, v, "V");
                } else {
                  checkVal0(row, col, u, "U");
                  checkVal(row, col, v, "V", 149);
                }
              }
            }
          }
        }
      } catch (Exception e) {
        System.out.println("\n" + e.getMessage());
        retval = 0;
      }
  
      if (retval == 0) {
        for (row = 0; row < ph; row++) {
          for (col = 0; col < pw; col++) {
            int y = buf[ypitch * row + col];
            if (y < 0) y += 256;
            System.out.format("%3d ", y);
          }
          System.out.print("\n");
        }
        System.out.print("\n");
        for (row = 0; row < ch; row++) {
          for (col = 0; col < cw; col++) {
            int u = buf[ypitch * ph + (uvpitch * row + col)];
            if (u < 0) u += 256;
            System.out.format("%3d ", u);
          }
          System.out.print("\n");
        }
        System.out.print("\n");
        for (row = 0; row < ch; row++) {
          for (col = 0; col < cw; col++) {
            int v = buf[ypitch * ph + uvpitch * ch + (uvpitch * row + col)];
            if (v < 0) v += 256;
            System.out.format("%3d ", v);
          }
          System.out.print("\n");
        }
      }
  
      return retval;
    }
  
    static void writeJPEG(byte[] jpegBuf, int jpegBufSize, String filename)
                          throws Exception {
      File file = new File(filename);
      FileOutputStream fos = new FileOutputStream(file);
      fos.write(jpegBuf, 0, jpegBufSize);
      fos.close();
    }
  
    static int compTest(TJCompressor tjc, byte[] dstBuf, int w, int h, int pf,
                        String baseName, int subsamp, int jpegQual, int flags)
                        throws Exception {
      String tempStr;
      byte[] srcBuf = null;
      BufferedImage img = null;
      String pfStr, pfStrLong;
      String buStr = (flags & TJ.FLAG_BOTTOMUP) != 0 ? "BU" : "TD";
      String buStrLong = (flags & TJ.FLAG_BOTTOMUP) != 0 ?
                         "Bottom-Up" : "Top-Down ";
      int size = 0, ps, imgType = pf;
  
      if (bi) {
        pf = biTypePF(imgType);
        pfStr = biTypeStr(imgType);
        pfStrLong = pfStr + " (" + PIXFORMATSTR[pf] + ")";
      } else {
        pfStr = PIXFORMATSTR[pf];
        pfStrLong = pfStr;
      }
      ps =  TJ.getPixelSize(pf);
  
      if (bi) {
        img = new BufferedImage(w, h, imgType);
        initImg(img, pf, flags);
        tempStr = baseName + "_enc_" + pfStr + "_" + buStr + "_" +
                  SUBNAME[subsamp] + "_Q" + jpegQual + ".png";
        File file = new File(tempStr);
        ImageIO.write(img, "png", file);
        tjc.setSourceImage(img, 0, 0, 0, 0);
      } else {
        srcBuf = new byte[w * h * ps + 1];
        initBuf(srcBuf, w, w * ps, h, pf, flags);
        tjc.setSourceImage(srcBuf, 0, 0, w, 0, h, pf);
      }
      Arrays.fill(dstBuf, (byte)0);
  
      tjc.setSubsamp(subsamp);
      tjc.setJPEGQuality(jpegQual);
      if (doYUV) {
        System.out.format("%s %s -> YUV %s ... ", pfStrLong, buStrLong,
                          SUBNAME_LONG[subsamp]);
        YUVImage yuvImage = tjc.encodeYUV(pad, flags);
        if (checkBufYUV(yuvImage.getBuf(), yuvImage.getSize(), w, h, subsamp,
                        new TJScalingFactor(1, 1)) == 1)
          System.out.print("Passed.\n");
        else {
          System.out.print("FAILED!\n");
          exitStatus = -1;
        }
  
        System.out.format("YUV %s %s -> JPEG Q%d ... ", SUBNAME_LONG[subsamp],
                          buStrLong, jpegQual);
        tjc.setSourceImage(yuvImage);
      } else {
        System.out.format("%s %s -> %s Q%d ... ", pfStrLong, buStrLong,
                          SUBNAME_LONG[subsamp], jpegQual);
      }
      tjc.compress(dstBuf, flags);
      size = tjc.getCompressedSize();
  
      tempStr = baseName + "_enc_" + pfStr + "_" + buStr + "_" +
                SUBNAME[subsamp] + "_Q" + jpegQual + ".jpg";
      writeJPEG(dstBuf, size, tempStr);
      System.out.println("Done.\n  Result in " + tempStr);
  
      return size;
    }
  
    static void decompTest(TJDecompressor tjd, byte[] jpegBuf, int jpegSize,
                           int w, int h, int pf, String baseName, int subsamp,
                           int flags, TJScalingFactor sf) throws Exception {
      String pfStr, pfStrLong, tempStr;
      String buStrLong = (flags & TJ.FLAG_BOTTOMUP) != 0 ?
                         "Bottom-Up" : "Top-Down ";
      int scaledWidth = sf.getScaled(w);
      int scaledHeight = sf.getScaled(h);
      int temp1, temp2, imgType = pf;
      BufferedImage img = null;
      byte[] dstBuf = null;
  
      if (bi) {
        pf = biTypePF(imgType);
        pfStr = biTypeStr(imgType);
        pfStrLong = pfStr + " (" + PIXFORMATSTR[pf] + ")";
      } else {
        pfStr = PIXFORMATSTR[pf];
        pfStrLong = pfStr;
      }
  
      tjd.setSourceImage(jpegBuf, jpegSize);
      if (tjd.getWidth() != w || tjd.getHeight() != h ||
          tjd.getSubsamp() != subsamp)
        throw new Exception("Incorrect JPEG header");
  
      temp1 = scaledWidth;
      temp2 = scaledHeight;
      temp1 = tjd.getScaledWidth(temp1, temp2);
      temp2 = tjd.getScaledHeight(temp1, temp2);
      if (temp1 != scaledWidth || temp2 != scaledHeight)
        throw new Exception("Scaled size mismatch");
  
      if (doYUV) {
        System.out.format("JPEG -> YUV %s ", SUBNAME_LONG[subsamp]);
        if (!sf.isOne())
          System.out.format("%d/%d ... ", sf.getNum(), sf.getDenom());
        else System.out.print("... ");
        YUVImage yuvImage = tjd.decompressToYUV(scaledWidth, pad, scaledHeight,
                                                flags);
        if (checkBufYUV(yuvImage.getBuf(), yuvImage.getSize(), scaledWidth,
                        scaledHeight, subsamp, sf) == 1)
          System.out.print("Passed.\n");
        else {
          System.out.print("FAILED!\n");  exitStatus = -1;
        }
  
        System.out.format("YUV %s -> %s %s ... ", SUBNAME_LONG[subsamp],
                          pfStrLong, buStrLong);
        tjd.setSourceImage(yuvImage);
      } else {
        System.out.format("JPEG -> %s %s ", pfStrLong, buStrLong);
        if (!sf.isOne())
          System.out.format("%d/%d ... ", sf.getNum(), sf.getDenom());
        else System.out.print("... ");
      }
      if (bi)
        img = tjd.decompress(scaledWidth, scaledHeight, imgType, flags);
      else
        dstBuf = tjd.decompress(scaledWidth, 0, scaledHeight, pf, flags);
  
      if (bi) {
        tempStr = baseName + "_dec_" + pfStr + "_" +
                  (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD") + "_" +
                  SUBNAME[subsamp] + "_" +
                  (double)sf.getNum() / (double)sf.getDenom() + "x" + ".png";
        File file = new File(tempStr);
        ImageIO.write(img, "png", file);
      }
  
      if ((bi && checkImg(img, pf, subsamp, sf, flags) == 1) ||
          (!bi && checkBuf(dstBuf, scaledWidth,
                           scaledWidth * TJ.getPixelSize(pf), scaledHeight, pf,
                           subsamp, sf, flags) == 1))
        System.out.print("Passed.\n");
      else {
        System.out.print("FAILED!\n");
        exitStatus = -1;
      }
    }
  
    static void decompTest(TJDecompressor tjd, byte[] jpegBuf, int jpegSize,
                           int w, int h, int pf, String baseName, int subsamp,
                           int flags) throws Exception {
      int i;
      TJScalingFactor[] sf = TJ.getScalingFactors();
      for (i = 0; i < sf.length; i++) {
        int num = sf[i].getNum();
        int denom = sf[i].getDenom();
        if (subsamp == TJ.SAMP_444 || subsamp == TJ.SAMP_GRAY ||
            (subsamp == TJ.SAMP_411 && num == 1 &&
             (denom == 2 || denom == 1)) ||
            (subsamp != TJ.SAMP_411 && num == 1 &&
             (denom == 4 || denom == 2 || denom == 1)))
          decompTest(tjd, jpegBuf, jpegSize, w, h, pf, baseName, subsamp,
                     flags, sf[i]);
      }
    }
  
    static void doTest(int w, int h, int[] formats, int subsamp, String baseName)
                       throws Exception {
      TJCompressor tjc = null;
      TJDecompressor tjd = null;
      int size;
      byte[] dstBuf;
  
      dstBuf = new byte[TJ.bufSize(w, h, subsamp)];
  
      try {
        tjc = new TJCompressor();
        tjd = new TJDecompressor();
  
        for (int pf : formats) {
          if (pf < 0) continue;
          for (int i = 0; i < 2; i++) {
            int flags = 0;
            if (subsamp == TJ.SAMP_422 || subsamp == TJ.SAMP_420 ||
                subsamp == TJ.SAMP_440 || subsamp == TJ.SAMP_411)
              flags |= TJ.FLAG_FASTUPSAMPLE;
            if (i == 1)
              flags |= TJ.FLAG_BOTTOMUP;
            size = compTest(tjc, dstBuf, w, h, pf, baseName, subsamp, 100,
                            flags);
            decompTest(tjd, dstBuf, size, w, h, pf, baseName, subsamp, flags);
            if (pf >= TJ.PF_RGBX && pf <= TJ.PF_XRGB && !bi) {
              System.out.print("\n");
              decompTest(tjd, dstBuf, size, w, h, pf + (TJ.PF_RGBA - TJ.PF_RGBX),
                         baseName, subsamp, flags);
            }
            System.out.print("\n");
          }
        }
        System.out.print("--------------------\n\n");
      } catch (Exception e) {
        if (tjc != null) tjc.close();
        if (tjd != null) tjd.close();
        throw e;
      }
      if (tjc != null) tjc.close();
      if (tjd != null) tjd.close();
    }
  
    static void bufSizeTest() throws Exception {
      int w, h, i, subsamp;
      byte[] srcBuf, dstBuf = null;
      YUVImage dstImage = null;
      TJCompressor tjc = null;
      Random r = new Random();
  
      try {
        tjc = new TJCompressor();
        System.out.println("Buffer size regression test");
        for (subsamp = 0; subsamp < TJ.NUMSAMP; subsamp++) {
          for (w = 1; w < 48; w++) {
            int maxh = (w == 1) ? 2048 : 48;
            for (h = 1; h < maxh; h++) {
              if (h % 100 == 0)
                System.out.format("%04d x %04d\b\b\b\b\b\b\b\b\b\b\b", w, h);
              srcBuf = new byte[w * h * 4];
              if (doYUV)
                dstImage = new YUVImage(w, pad, h, subsamp);
              else
                dstBuf = new byte[TJ.bufSize(w, h, subsamp)];
              for (i = 0; i < w * h * 4; i++) {
                srcBuf[i] = (byte)(r.nextInt(2) * 255);
              }
              tjc.setSourceImage(srcBuf, 0, 0, w, 0, h, TJ.PF_BGRX);
              tjc.setSubsamp(subsamp);
              tjc.setJPEGQuality(100);
              if (doYUV)
                tjc.encodeYUV(dstImage, 0);
              else
                tjc.compress(dstBuf, 0);
  
              srcBuf = new byte[h * w * 4];
              if (doYUV)
                dstImage = new YUVImage(h, pad, w, subsamp);
              else
                dstBuf = new byte[TJ.bufSize(h, w, subsamp)];
              for (i = 0; i < h * w * 4; i++) {
                srcBuf[i] = (byte)(r.nextInt(2) * 255);
              }
              tjc.setSourceImage(srcBuf, 0, 0, h, 0, w, TJ.PF_BGRX);
              if (doYUV)
                tjc.encodeYUV(dstImage, 0);
              else
                tjc.compress(dstBuf, 0);
            }
            dstImage = null;
            dstBuf = null;
            System.gc();
          }
        }
        System.out.println("Done.      ");
      } catch (Exception e) {
        if (tjc != null) tjc.close();
        throw e;
      }
      if (tjc != null) tjc.close();
    }
  
    public static void main(String[] argv) {
      try {
        String testName = "javatest";
        for (int i = 0; i < argv.length; i++) {
          if (argv[i].equalsIgnoreCase("-yuv"))
            doYUV = true;
          else if (argv[i].equalsIgnoreCase("-noyuvpad"))
            pad = 1;
          else if (argv[i].equalsIgnoreCase("-bi")) {
            bi = true;
            testName = "javabitest";
          } else
            usage();
        }
        if (doYUV)
          FORMATS_4BYTE[4] = -1;
        doTest(35, 39, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_444,
               testName);
        doTest(39, 41, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_444,
               testName);
        doTest(41, 35, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_422,
               testName);
        doTest(35, 39, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_422,
               testName);
        doTest(39, 41, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_420,
               testName);
        doTest(41, 35, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_420,
               testName);
        doTest(35, 39, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_440,
               testName);
        doTest(39, 41, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_440,
               testName);
        doTest(41, 35, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_411,
               testName);
        doTest(35, 39, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_411,
               testName);
        doTest(39, 41, bi ? FORMATS_GRAYBI : FORMATS_GRAY, TJ.SAMP_GRAY,
               testName);
        doTest(41, 35, bi ? FORMATS_3BYTEBI : FORMATS_3BYTE, TJ.SAMP_GRAY,
               testName);
        FORMATS_4BYTE[4] = -1;
        doTest(35, 39, bi ? FORMATS_4BYTEBI : FORMATS_4BYTE, TJ.SAMP_GRAY,
               testName);
        if (!bi)
          bufSizeTest();
        if (doYUV && !bi) {
          System.out.print("\n--------------------\n\n");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_444, "javatest_yuv0");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_422, "javatest_yuv0");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_420, "javatest_yuv0");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_440, "javatest_yuv0");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_411, "javatest_yuv0");
          doTest(48, 48, FORMATS_RGB, TJ.SAMP_GRAY, "javatest_yuv0");
          doTest(48, 48, FORMATS_GRAY, TJ.SAMP_GRAY, "javatest_yuv0");
        }
      } catch (Exception e) {
        e.printStackTrace();
        exitStatus = -1;
      }
      System.exit(exitStatus);
    }
  }
  

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