Example usage for java.awt.image DataBufferUShort getData

Introduction

In this page you can find the example usage for java.awt.image DataBufferUShort getData.

Prototype

public short[] getData() 

Source Link

Document

Returns the default (first) unsigned-short data array.

Usage

From source file:org.esa.s2tbx.dataio.s2.S2TileOpImage.java

@Override
protected synchronized void computeRect(PlanarImage[] sources, WritableRaster dest, Rectangle destRect) {
    final DataBufferUShort dataBuffer = (DataBufferUShort) dest.getDataBuffer();
    final short[] tileData = dataBuffer.getData();

    final int tileWidth = this.getTileWidth();
    final int tileHeight = this.getTileHeight();
    final int tileX = destRect.x / tileWidth;
    final int tileY = destRect.y / tileHeight;

    if (tileWidth * tileHeight != tileData.length) {
        throw new IllegalStateException(
                String.format("tileWidth (=%d) * tileHeight (=%d) != tileData.length (=%d)", tileWidth,
                        tileHeight, tileData.length));
    }/*w  w w.  j  a va  2s .c  o  m*/

    final Dimension jp2TileDim = getDimAtResolutionLevel(tileLayout.tileWidth, tileLayout.tileHeight,
            getLevel());

    final int jp2TileWidth = jp2TileDim.width;
    final int jp2TileHeight = jp2TileDim.height;
    final int jp2TileX = destRect.x / jp2TileWidth;
    final int jp2TileY = destRect.y / jp2TileHeight;

    File outputFile = null;
    try {
        outputFile = new File(cacheDir, FileUtils.exchangeExtension(imageFile.getName(),
                String.format("_R%d_TX%d_TY%d.pgx", getLevel(), jp2TileX, jp2TileY)));
    } catch (Exception e) {
        logger.severe(Utils.getStackTrace(e));
    }

    final File outputFile0 = getFirstComponentOutputFile(outputFile);
    // todo - outputFile0 may have already been created, although 'opj_decompress' has not finished execution.
    //        This may be the reason for party filled tiles, that sometimes occur
    if (!outputFile0.exists()) {
        logger.finest(String.format("Jp2ExeImage.readTileData(): recomputing res=%d, tile=(%d,%d)\n",
                getLevel(), jp2TileX, jp2TileY));
        try {
            decompressTile(outputFile, jp2TileX, jp2TileY);
        } catch (IOException e) {
            logger.severe("opj_decompress process failed! :" + Utils.getStackTrace(e));
            if (outputFile0.exists() && !outputFile0.delete()) {
                logger.severe("Failed to delete file: " + outputFile0.getAbsolutePath());
            }
        }
        if (!outputFile0.exists()) {
            Arrays.fill(tileData, S2Config.FILL_CODE_NO_FILE);
            return;
        }
    }

    try {
        logger.finest(String.format("Jp2ExeImage.readTileData(): reading res=%d, tile=(%d,%d)\n", getLevel(),
                jp2TileX, jp2TileY));
        readTileData(outputFile0, tileX, tileY, tileWidth, tileHeight, jp2TileX, jp2TileY, jp2TileWidth,
                jp2TileHeight, tileData, destRect);
    } catch (IOException e) {
        logger.severe("Failed to read uncompressed file data: " + Utils.getStackTrace(e));
    }
}

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