From e4daa5d745f3d084e0c7180a88597b2582131b63 Mon Sep 17 00:00:00 2001 From: Kenneth Russel Date: Thu, 4 Jan 2007 07:20:30 +0000 Subject: With extensive help from Phil Race and Chris Campbell from the Java 2D team, added a TextRenderer class which enables high-performance rendering of bitmapped Java 2D fonts, with full Unicode support, into arbitrary OpenGL drawables using a simple API. Builds on top of the TextureRenderer class and its associated functionality; added createAlphaOnlyRenderer() and other methods to enable the TextRenderer. Caches rendering results on a string-by-string basis in an OpenGL texture using a fully automatic least-recently-used algorithm for good efficiency when rendering the same string or strings multiple times. Uses a rectangle packing algorithm, currently housed in com.sun.opengl.impl.packrect, for managing the positions of cached strings on a larger OpenGL texture to avoid OpenGL pipeline state changes. Added a TestTextRenderer demo which simply adds a moving text string and frames-per-second counter to the Gears demo; more sophisticated examples to come. (Some commented-out debugging code is being temporarily left in the new demo, to be removed in the next checkin, in order to have it in the version history.) git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1067 232f8b59-042b-4e1e-8c03-345bb8c30851 --- .../opengl/impl/packrect/BackingStoreManager.java | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100755 src/classes/com/sun/opengl/impl/packrect/BackingStoreManager.java (limited to 'src/classes/com/sun/opengl/impl/packrect/BackingStoreManager.java') diff --git a/src/classes/com/sun/opengl/impl/packrect/BackingStoreManager.java b/src/classes/com/sun/opengl/impl/packrect/BackingStoreManager.java new file mode 100755 index 000000000..ba4b0cf30 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/packrect/BackingStoreManager.java @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Neither the name of Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package com.sun.opengl.impl.packrect; + +/** This interface must be implemented by the end user and is called + in response to events like addition of rectangles into the + RectanglePacker. It is used both when a full re-layout must be + done as well as when the data in the backing store must be copied + to a new one. */ + +public interface BackingStoreManager { + public Object allocateBackingStore(int w, int h); + public void deleteBackingStore(Object backingStore); + + // Notification that movement is starting + public void beginMovement(Object oldBackingStore, Object newBackingStore); + + // Can the backing stores be identical? I think so, in the case of + // compacting the existing backing store as opposed to reallocating it... + public void move(Object oldBackingStore, + Rect oldLocation, + Object newBackingStore, + Rect newLocation); + + // Notification that movement is ending + public void endMovement(Object oldBackingStore, Object newBackingStore); +} -- cgit v1.2.3