Uploaded image for project: 'XMLGraphicsCommons'
  1. XMLGraphicsCommons
  2. XGC-99

PNGFile.getImageRawPNG() returns broken image data

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 2.0.1, 2.6
    • None
    • image codecs
    • None

    Description

      The ImageRawPNG returned by PNGFile.getImageRawPNG() is broken because the provided InputStream (streamVec) contains only part of the raw image data. For a start the magic header is missing, but it's not enough to add it.

      To fix this, I copied the entire stream in the PNGFile constructor like this:

              stream.mark(Integer.MAX_VALUE);
              ByteArrayOutputStream out = new ByteArrayOutputStream();
              IOUtils.copy(stream, out);
              rawStream = new ByteArrayInputStream(out.toByteArray());
              out = null;
              stream.reset();
      

      and use the rawStream in favor of streamVec, which can be removed then.

      Testcases still run successful. This fixes RTF output not working with PNG files in FOP because it checks for (missing) the PNG magic header.

      Attachments

        Activity

          People

            Unassigned Unassigned
            carsten.pfeiffer Carsten Pfeiffer
            Votes:
            1 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

              Created:
              Updated: