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Code Releases Wiki Activity

added RLE encoding helper

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This commit is contained in:
dakhnod 2020-01-02 02:08:04 +01:00
parent 9d34447b0d
commit 2242aa5ac9
1 changed files with 34 additions and 0 deletions
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app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/image/ImageRLEEncoder.java Normal file
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package nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.requests.fossil_hr.image;
import java.io.ByteArrayOutputStream;
public class ImageRLEEncoder {
public static byte[] RLEEncode(byte[] data) {
ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length * 2);
int lastByte = data[0];
int count = 1;
byte currentByte = -1;
for (int i = 1; i < data.length; i++) {
currentByte = data[i];
if (currentByte != lastByte || count >= 255) {
bos.write(data[i - 1]);
bos.write(count);
count = 1;
lastByte = data[i];
} else {
count++;
}
}
bos.write(currentByte);
bos.write(count);
byte[] result = bos.toByteArray();
return result;
}
}