"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "core/src/main/java/com/google/zxing/common/BitSource.java" between
zxing-zxing-3.4.0.tar.gz and zxing-zxing-3.4.1.tar.gz

About: ZXing ("zebra crossing") is a multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages.

BitSource.java  (zxing-zxing-3.4.0)	:	BitSource.java  (zxing-zxing-3.4.1)
skipping to change at line 72		skipping to change at line 72
public int readBits(int numBits) {		public int readBits(int numBits) {
if (numBits < 1 || numBits > 32 || numBits > available()) {		if (numBits < 1 || numBits > 32 || numBits > available()) {
throw new IllegalArgumentException(String.valueOf(numBits));		throw new IllegalArgumentException(String.valueOf(numBits));
}		}
int result = 0;		int result = 0;
// First, read remainder from current byte		// First, read remainder from current byte
if (bitOffset > 0) {		if (bitOffset > 0) {
int bitsLeft = 8 - bitOffset;		int bitsLeft = 8 - bitOffset;
int toRead = numBits < bitsLeft ? numBits : bitsLeft;		int toRead = Math.min(numBits, bitsLeft);
int bitsToNotRead = bitsLeft - toRead;		int bitsToNotRead = bitsLeft - toRead;
int mask = (0xFF >> (8 - toRead)) << bitsToNotRead;		int mask = (0xFF >> (8 - toRead)) << bitsToNotRead;
result = (bytes[byteOffset] & mask) >> bitsToNotRead;		result = (bytes[byteOffset] & mask) >> bitsToNotRead;
numBits -= toRead;		numBits -= toRead;
bitOffset += toRead;		bitOffset += toRead;
if (bitOffset == 8) {		if (bitOffset == 8) {
bitOffset = 0;		bitOffset = 0;
byteOffset++;		byteOffset++;
}		}
}		}
End of changes. 1 change blocks.
1 lines changed or deleted		1 lines changed or added

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