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/* Copyright 2017 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
package org.brotli.dec;
/**
* Byte-to-int conversion magic.
*/
final class IntReader {
private byte[] byteBuffer;
private int[] intBuffer;
static void init(IntReader ir, byte[] byteBuffer, int[] intBuffer) {
ir.byteBuffer = byteBuffer;
ir.intBuffer = intBuffer;
}
/**
* Translates bytes to ints.
*
* NB: intLen == 4 * byteSize!
* NB: intLen should be less or equal to intBuffer length.
*/
static void convert(IntReader ir, int intLen) {
for (int i = 0; i < intLen; ++i) {
ir.intBuffer[i] = ((ir.byteBuffer[i * 4] & 0xFF))
| ((ir.byteBuffer[(i * 4) + 1] & 0xFF) << 8)
| ((ir.byteBuffer[(i * 4) + 2] & 0xFF) << 16)
| ((ir.byteBuffer[(i * 4) + 3] & 0xFF) << 24);
}
}
}
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