Michael Bayne
b6f5317ad2
git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@158 ed5b42cb-e716-0410-a449-f6a68f950b19
108 lines
3.6 KiB
Java
108 lines
3.6 KiB
Java
//
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// $Id$
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//
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// Nenya library - tools for developing networked games
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// Copyright (C) 2002-2007 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/nenya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.media;
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import java.awt.AWTException;
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import java.awt.BufferCapabilities;
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import java.awt.Graphics2D;
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import java.awt.ImageCapabilities;
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import java.awt.Rectangle;
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import java.awt.image.BufferStrategy;
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/**
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* A {@link FrameManager} extension that uses a flip-buffer (via {@link
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* BufferStrategy} to do its rendering.
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*/
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public class FlipFrameManager extends FrameManager
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{
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// from FrameManager
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protected void paint (long tickStamp)
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{
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// create our buffer strategy if we don't already have one
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if (_bufstrat == null) {
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BufferCapabilities cap = new BufferCapabilities(
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new ImageCapabilities(true), new ImageCapabilities(true),
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BufferCapabilities.FlipContents.COPIED);
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try {
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_window.createBufferStrategy(2, cap);
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} catch (AWTException ae) {
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Log.warning("Failed creating flip bufstrat: " + ae + ".");
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// fall back to one without custom capabilities
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_window.createBufferStrategy(2);
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}
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_bufstrat = _window.getBufferStrategy();
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}
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// start out assuming we can do an incremental render
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boolean incremental = true;
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do {
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Graphics2D gfx = null;
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try {
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gfx = (Graphics2D)_bufstrat.getDrawGraphics();
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// dirty everything if we're not incrementally rendering
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if (!incremental) {
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Log.info("Doing non-incremental render; contents lost " +
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"[lost=" + _bufstrat.contentsLost() +
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", rest=" + _bufstrat.contentsRestored() + "].");
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_root.getRootPane().revalidate();
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_root.getRootPane().repaint();
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}
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// request to paint our participants and components and bail
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// if they paint nothing
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if (!paint(gfx)) {
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return;
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}
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// flip our buffer to visible
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_bufstrat.show();
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// if we loop through a second time, we'll need to rerender
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// everything
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incremental = false;
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} finally {
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if (gfx != null) {
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gfx.dispose();
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}
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}
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} while (_bufstrat.contentsLost());
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}
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// from FrameManager
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protected Graphics2D createGraphics ()
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{
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return (Graphics2D)_bufstrat.getDrawGraphics();
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}
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// from FrameManager
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protected void restoreFromBack (Rectangle dirty)
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{
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// nothing doing
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}
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/** The buffer strategy used to do our rendering. */
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protected BufferStrategy _bufstrat;
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}
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