1 package nom.tam.image.compression.tile;
2
3 /*
4 * #%L
5 * nom.tam FITS library
6 * %%
7 * Copyright (C) 1996 - 2024 nom-tam-fits
8 * %%
9 * This is free and unencumbered software released into the public domain.
10 *
11 * Anyone is free to copy, modify, publish, use, compile, sell, or
12 * distribute this software, either in source code form or as a compiled
13 * binary, for any purpose, commercial or non-commercial, and by any
14 * means.
15 *
16 * In jurisdictions that recognize copyright laws, the author or authors
17 * of this software dedicate any and all copyright interest in the
18 * software to the public domain. We make this dedication for the benefit
19 * of the public at large and to the detriment of our heirs and
20 * successors. We intend this dedication to be an overt act of
21 * relinquishment in perpetuity of all present and future rights to this
22 * software under copyright law.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
27 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
28 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
29 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
30 * OTHER DEALINGS IN THE SOFTWARE.
31 * #L%
32 */
33
34 import java.nio.Buffer;
35
36 import nom.tam.image.tile.operation.ITileOperationInitialisation;
37 import nom.tam.image.tile.operation.TileArea;
38
39 final class TileCompressorInitialisation implements ITileOperationInitialisation<TileCompressionOperation> {
40
41 private final Buffer buffer;
42
43 private final TiledImageCompressionOperation imageTilesOperation;
44
45 private int compressedOffset = 0;
46
47 protected TileCompressorInitialisation(TiledImageCompressionOperation imageTilesOperation, Buffer buffer) {
48 this.imageTilesOperation = imageTilesOperation;
49 this.buffer = buffer;
50 }
51
52 @Override
53 public TileCompressionOperation createTileOperation(int tileIndex, TileArea area) {
54 return new TileCompressor(imageTilesOperation, tileIndex, area);
55 }
56
57 @Override
58 public void init(TileCompressionOperation tileOperation) {
59 tileOperation.setCompressedOffset(compressedOffset);
60 tileOperation.setWholeImageBuffer(buffer);
61 tileOperation.setWholeImageCompressedBuffer(imageTilesOperation.getCompressedWholeArea());
62 compressedOffset += tileOperation.getPixelSize();
63 }
64
65 @Override
66 public void tileCount(int tileCount) {
67 }
68 }