DQTMarkerSegment.java 文件源码

Qtable(boolean wantLuma, float quality) {
    elementPrecision = 0;
    JPEGQTable base = null;
    if (wantLuma) {
        tableID = 0;
        base = JPEGQTable.K1Div2Luminance;
    } else {
        tableID = 1;
        base = JPEGQTable.K2Div2Chrominance;
    }
    if (quality != JPEG.DEFAULT_QUALITY) {
        quality = JPEG.convertToLinearQuality(quality);
        if (wantLuma) {
            base = JPEGQTable.K1Luminance.getScaledInstance
                (quality, true);
        } else {
            base = JPEGQTable.K2Div2Chrominance.getScaledInstance
                (quality, true);
        }
    }
    data = base.getTable();
}