| /* |
| * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package sun.java2d.opengl; |
| |
| import java.awt.Component; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.ImageCapabilities; |
| import java.awt.Rectangle; |
| import java.awt.Transparency; |
| import java.awt.image.ColorModel; |
| import sun.awt.X11ComponentPeer; |
| import sun.awt.image.SunVolatileImage; |
| import sun.awt.image.VolatileSurfaceManager; |
| import sun.java2d.SurfaceData; |
| |
| public class GLXVolatileSurfaceManager extends VolatileSurfaceManager { |
| |
| private boolean accelerationEnabled; |
| |
| public GLXVolatileSurfaceManager(SunVolatileImage vImg, Object context) { |
| super(vImg, context); |
| |
| /* |
| * We will attempt to accelerate this image only under the |
| * following conditions: |
| * - the image is opaque OR |
| * - the image is translucent AND |
| * - the GraphicsConfig supports the FBO extension OR |
| * - the GraphicsConfig has a stored alpha channel |
| */ |
| int transparency = vImg.getTransparency(); |
| GLXGraphicsConfig gc = (GLXGraphicsConfig)vImg.getGraphicsConfig(); |
| accelerationEnabled = |
| (transparency == Transparency.OPAQUE) || |
| ((transparency == Transparency.TRANSLUCENT) && |
| (gc.isCapPresent(OGLContext.CAPS_EXT_FBOBJECT) || |
| gc.isCapPresent(OGLContext.CAPS_STORED_ALPHA))); |
| } |
| |
| protected boolean isAccelerationEnabled() { |
| return accelerationEnabled; |
| } |
| |
| /** |
| * Create a pbuffer-based SurfaceData object (or init the backbuffer |
| * of an existing window if this is a double buffered GraphicsConfig) |
| */ |
| protected SurfaceData initAcceleratedSurface() { |
| SurfaceData sData; |
| Component comp = vImg.getComponent(); |
| X11ComponentPeer peer = |
| (comp != null) ? (X11ComponentPeer)comp.getPeer() : null; |
| |
| try { |
| boolean forceback = false; |
| if (context instanceof Boolean) { |
| forceback = ((Boolean)context).booleanValue(); |
| } |
| |
| if (forceback) { |
| // peer must be non-null in this case |
| sData = GLXSurfaceData.createData(peer, vImg); |
| } else { |
| GLXGraphicsConfig gc = |
| (GLXGraphicsConfig)vImg.getGraphicsConfig(); |
| ColorModel cm = gc.getColorModel(vImg.getTransparency()); |
| int type = gc.isCapPresent(OGLContext.CAPS_EXT_FBOBJECT) ? |
| OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER; |
| sData = GLXSurfaceData.createData(gc, |
| vImg.getWidth(), |
| vImg.getHeight(), |
| cm, vImg, type); |
| } |
| } catch (NullPointerException ex) { |
| sData = null; |
| } catch (OutOfMemoryError er) { |
| sData = null; |
| } |
| |
| return sData; |
| } |
| |
| protected boolean isConfigValid(GraphicsConfiguration gc) { |
| return ((gc == null) || (gc == vImg.getGraphicsConfig())); |
| } |
| } |