/* @see loci.formats.IFormatHandler#close() */ public void close() throws IOException { if (out != null) { writeFooter(); } super.close(); numFrames = 0; numFramesPointer = 0; nextSequenceNumber = 0; littleEndian = false; }
/* @see loci.formats.IFormatHandler#setId(String) */ public void setId(String id) throws FormatException, IOException { super.setId(id); if (out.length() == 0) { MetadataRetrieve r = getMetadataRetrieve(); int width = r.getPixelsSizeX(series).getValue().intValue(); int height = r.getPixelsSizeY(series).getValue().intValue(); int bytesPerPixel = FormatTools.getBytesPerPixel(r.getPixelsType(series).toString()); int nChannels = getSamplesPerPixel(); boolean indexed = getColorModel() != null && (getColorModel() instanceof IndexColorModel); littleEndian = !r.getPixelsBinDataBigEndian(series, 0); // write 8-byte PNG signature out.write(PNG_SIG); // write IHDR chunk out.writeInt(13); byte[] b = new byte[17]; b[0] = 'I'; b[1] = 'H'; b[2] = 'D'; b[3] = 'R'; DataTools.unpackBytes(width, b, 4, 4, false); DataTools.unpackBytes(height, b, 8, 4, false); b[12] = (byte) (bytesPerPixel * 8); if (indexed) b[13] = (byte) 3; else if (nChannels == 1) b[13] = (byte) 0; else if (nChannels == 2) b[13] = (byte) 4; else if (nChannels == 3) b[13] = (byte) 2; else if (nChannels == 4) b[13] = (byte) 6; b[14] = (byte) 0; b[15] = (byte) 0; b[16] = (byte) 0; out.write(b); out.writeInt(crc(b)); // write acTL chunk out.writeInt(8); out.writeBytes("acTL"); numFramesPointer = out.getFilePointer(); out.writeInt(0); out.writeInt(0); out.writeInt(0); // save a place for the CRC } }