Walter Korman
1c4503efe5
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2066 542714f4-19e9-0310-aa3c-eee0fc999fb1
82 lines
2.6 KiB
Java
82 lines
2.6 KiB
Java
//
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// $Id: ModeUtil.java,v 1.5 2002/12/13 04:37:27 shaper Exp $
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package com.threerings.media.util;
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import java.awt.DisplayMode;
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import java.awt.GraphicsDevice;
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import java.util.Comparator;
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import java.util.TreeSet;
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/**
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* Display mode related utilities.
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*/
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public class ModeUtil
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{
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/**
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* Gets a display mode that matches the specified parameters. The
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* screen resolution must match the specified resolution exactly, the
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* specified desired depth will be used if it is available, and if
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* not, the highest depth greater than or equal to the specified
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* minimum depth is used. The highest refresh rate available for the
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* desired mode is also used.
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*/
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public static DisplayMode getDisplayMode (
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GraphicsDevice gd, int width, int height,
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int desiredDepth, int minimumDepth)
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{
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DisplayMode[] modes = gd.getDisplayModes();
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final int ddepth = desiredDepth;
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// we sort modes in order of desirability
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Comparator mcomp = new Comparator () {
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public int compare (Object o1, Object o2) {
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DisplayMode m1 = (DisplayMode)o1;
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DisplayMode m2 = (DisplayMode)o2;
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int bd1 = m1.getBitDepth(), bd2 = m2.getBitDepth();
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int rr1 = m1.getRefreshRate(), rr2 = m2.getRefreshRate();
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// prefer the desired depth
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if (bd1 == ddepth && bd2 != ddepth) {
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return -1;
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} else if (bd2 == ddepth && bd1 != ddepth) {
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return 1;
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}
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// otherwise prefer higher depths
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if (bd1 != bd2) {
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return bd2 - bd1;
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}
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// for same bitrates, prefer higher refresh rates
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return rr2 - rr1;
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}
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};
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// but we only add modes that meet our minimum requirements
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TreeSet mset = new TreeSet(mcomp);
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for (int i = 0; i < modes.length; i++) {
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if (modes[i].getWidth() == 800 &&
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modes[i].getHeight() == 600 &&
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modes[i].getBitDepth() >= minimumDepth &&
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modes[i].getRefreshRate() <= 75) {
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mset.add(modes[i]);
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}
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}
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return (mset.size() > 0) ? (DisplayMode)mset.first() : null;
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}
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/**
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* Returns a string representation of the supplied display mode.
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*/
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public static String toString (DisplayMode mode)
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{
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return "[width=" + mode.getWidth() +
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", height=" + mode.getHeight() +
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", depth=" + mode.getBitDepth() +
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", refresh=" + mode.getRefreshRate() + "]";
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}
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}
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