예제 #1
0
  private 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 = alphaOffset[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);
      }
    }
  }
예제 #2
0
  private static void bufSizeTest() throws Exception {
    int w, h, i, subsamp;
    byte[] srcBuf, jpegBuf;
    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];
            jpegBuf = 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, w, 0, h, TJ.PF_BGRX);
            tjc.setSubsamp(subsamp);
            tjc.setJPEGQuality(100);
            tjc.compress(jpegBuf, 0);

            srcBuf = new byte[h * w * 4];
            jpegBuf = 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, h, 0, w, TJ.PF_BGRX);
            tjc.compress(jpegBuf, 0);
          }
        }
      }
      System.out.println("Done.      ");
    } catch (Exception e) {
      if (tjc != null) tjc.close();
      throw e;
    }
    if (tjc != null) tjc.close();
  }
예제 #3
0
  private 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;

    if (yuv == YUVENCODE) dstBuf = new byte[TJ.bufSizeYUV(w, h, subsamp)];
    else dstBuf = new byte[TJ.bufSize(w, h, subsamp)];

    try {
      tjc = new TJCompressor();
      tjd = new TJDecompressor();

      for (int pf : formats) {
        for (int i = 0; i < 2; i++) {
          int flags = 0;
          if (subsamp == TJ.SAMP_422 || subsamp == TJ.SAMP_420 || subsamp == TJ.SAMP_440)
            flags |= TJ.FLAG_FASTUPSAMPLE;
          if (i == 1) {
            if (yuv == YUVDECODE) {
              tjc.close();
              tjd.close();
              return;
            } else 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)
            decompTest(
                tjd, dstBuf, size, w, h, pf + (TJ.PF_RGBA - TJ.PF_RGBX), baseName, subsamp, flags);
        }
      }
    } 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();
  }
예제 #4
0
  private 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 = alphaOffset[pf];
    int ps = TJ.getPixelSize(pf);
    int index, row, col, halfway = 16;

    Arrays.fill(buf, (byte) 0);
    if (pf == TJ.PF_GRAY) {
      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;
    }
    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;
      }
    }
  }
예제 #5
0
 private 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;
   if ((subsamp == TJ.SAMP_444 || subsamp == TJ.SAMP_GRAY) && yuv == 0) {
     TJScalingFactor sf[] = TJ.getScalingFactors();
     for (i = 0; i < sf.length; i++)
       decompTest(tjd, jpegBuf, jpegSize, w, h, pf, baseName, subsamp, flags, sf[i]);
   } else
     decompTest(
         tjd, jpegBuf, jpegSize, w, h, pf, baseName, subsamp, flags, new TJScalingFactor(1, 1));
   System.out.print("\n");
 }
예제 #6
0
  private 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, tempstr;
    double t;
    int scaledWidth = sf.getScaled(w);
    int scaledHeight = sf.getScaled(h);
    int temp1, temp2, imgType = pf;
    BufferedImage img = null;
    byte[] dstBuf = null;

    if (yuv == YUVENCODE) return;

    if (bi) {
      pf = biTypePF(imgType);
      pfStr = biTypeStr(imgType);
    } else pfStr = pixFormatStr[pf];

    System.out.print("JPEG -> ");
    if (yuv == YUVDECODE) System.out.print("YUV " + subName[subsamp] + " ... ");
    else {
      System.out.print(pfStr + " ");
      if (bi) System.out.print("(" + pixFormatStr[pf] + ") ");
      if ((flags & TJ.FLAG_BOTTOMUP) != 0) System.out.print("Bottom-Up ");
      else System.out.print("Top-Down  ");
      if (!sf.isOne()) System.out.print(sf.getNum() + "/" + sf.getDenom() + " ... ");
      else System.out.print("... ");
    }

    t = getTime();
    tjd.setJPEGImage(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 (yuv == YUVDECODE) dstBuf = tjd.decompressToYUV(flags);
    else {
      if (bi) img = tjd.decompress(scaledWidth, scaledHeight, imgType, flags);
      else dstBuf = tjd.decompress(scaledWidth, 0, scaledHeight, pf, flags);
    }
    t = getTime() - t;

    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 (yuv == YUVDECODE) {
      if (checkBufYUV(dstBuf, dstBuf.length, w, h, subsamp) == 1) System.out.print("Passed.");
      else {
        System.out.print("FAILED!");
        exitStatus = -1;
      }
    } else {
      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.");
      else {
        System.out.print("FAILED!");
        exitStatus = -1;
      }
    }
    System.out.format("  %.6f ms\n", t * 1000.);
  }
예제 #7
0
  private 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;
    double t;
    int size = 0, ps, imgType = pf;

    if (bi) {
      pf = biTypePF(imgType);
      pfStr = biTypeStr(imgType);
    } else pfStr = pixFormatStr[pf];
    ps = TJ.getPixelSize(pf);

    System.out.print(pfStr + " ");
    if (bi) System.out.print("(" + pixFormatStr[pf] + ") ");
    if ((flags & TJ.FLAG_BOTTOMUP) != 0) System.out.print("Bottom-Up");
    else System.out.print("Top-Down ");
    System.out.print(" -> " + subNameLong[subsamp] + " ");
    if (yuv == YUVENCODE) System.out.print("YUV ... ");
    else System.out.print("Q" + jpegQual + " ... ");

    if (bi) {
      img = new BufferedImage(w, h, imgType);
      initImg(img, pf, flags);
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + "_Q"
              + jpegQual
              + ".png";
      File file = new File(tempstr);
      ImageIO.write(img, "png", file);
    } else {
      srcBuf = new byte[w * h * ps + 1];
      initBuf(srcBuf, w, w * ps, h, pf, flags);
    }
    Arrays.fill(dstBuf, (byte) 0);

    t = getTime();
    tjc.setSubsamp(subsamp);
    tjc.setJPEGQuality(jpegQual);
    if (bi) {
      if (yuv == YUVENCODE) tjc.encodeYUV(img, dstBuf, flags);
      else tjc.compress(img, dstBuf, flags);
    } else {
      tjc.setSourceImage(srcBuf, w, 0, h, pf);
      if (yuv == YUVENCODE) tjc.encodeYUV(dstBuf, flags);
      else tjc.compress(dstBuf, flags);
    }
    size = tjc.getCompressedSize();
    t = getTime() - t;

    if (yuv == YUVENCODE)
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + ".yuv";
    else
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + "_Q"
              + jpegQual
              + ".jpg";
    writeJPEG(dstBuf, size, tempstr);

    if (yuv == YUVENCODE) {
      if (checkBufYUV(dstBuf, size, w, h, subsamp) == 1) System.out.print("Passed.");
      else {
        System.out.print("FAILED!");
        exitStatus = -1;
      }
    } else System.out.print("Done.");
    System.out.format("  %.6f ms\n", t * 1000.);
    System.out.println("  Result in " + tempstr);

    return size;
  }
예제 #8
0
  private static int checkBufYUV(byte[] buf, int size, int w, int h, int subsamp) 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, 4), uvpitch = PAD(cw, 4);
    int retval = 1;
    int correctsize = ypitch * ph + (subsamp == TJ.SAMP_GRAY ? 0 : uvpitch * ch * 2);
    int halfway = 16;

    try {
      if (size != correctsize)
        throw new Exception("\nIncorrect 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 / 8) + (col / 8)) % 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;
        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 / 8) + (col * hsf / 8)) % 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(e);
      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");
      }
      System.out.print("\n");
    }

    return retval;
  }
예제 #9
0
  private 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 = alphaOffset[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(e);
      retval = 0;
    }

    if (retval == 0) {
      System.out.print("\n");
      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;
  }
예제 #10
0
  private 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 = alphaOffset[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 {
      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(e);
      retval = 0;
    }

    if (retval == 0) {
      System.out.print("\n");
      for (row = 0; row < h; row++) {
        for (col = 0; col < w; col++) {
          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;
  }