nom.tam.image.compression.tile.TileCompressorInitialisation Maven / Gradle / Ivy

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package nom.tam.image.compression.tile;

/*
 * #%L
 * nom.tam FITS library
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 * Copyright (C) 1996 - 2024 nom-tam-fits
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 * This is free and unencumbered software released into the public domain.
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 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
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 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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import java.nio.Buffer;

import nom.tam.image.tile.operation.ITileOperationInitialisation;
import nom.tam.image.tile.operation.TileArea;

final class TileCompressorInitialisation implements ITileOperationInitialisation {

    private final Buffer buffer;

    private final TiledImageCompressionOperation imageTilesOperation;

    private int compressedOffset = 0;

    protected TileCompressorInitialisation(TiledImageCompressionOperation imageTilesOperation, Buffer buffer) {
        this.imageTilesOperation = imageTilesOperation;
        this.buffer = buffer;
    }

    @Override
    public TileCompressionOperation createTileOperation(int tileIndex, TileArea area) {
        return new TileCompressor(imageTilesOperation, tileIndex, area);
    }

    @Override
    public void init(TileCompressionOperation tileOperation) {
        tileOperation.setCompressedOffset(compressedOffset);
        tileOperation.setWholeImageBuffer(buffer);
        tileOperation.setWholeImageCompressedBuffer(imageTilesOperation.getCompressedWholeArea());
        compressedOffset += tileOperation.getPixelSize();
    }

    @Override
    public void tileCount(int tileCount) {
    }
}