Exemplo n.º 1
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;
  }
Exemplo n.º 2
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.);
  }
Exemplo n.º 3
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;
  }