| /* |
| * Copyright (c) 2011, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.java2d.opengl; |
| |
| import java.awt.BufferCapabilities; |
| import static java.awt.BufferCapabilities.FlipContents.*; |
| import java.awt.Component; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.Transparency; |
| import java.awt.image.ColorModel; |
| import java.awt.peer.ComponentPeer; |
| |
| import sun.awt.image.SunVolatileImage; |
| import sun.awt.image.VolatileSurfaceManager; |
| import sun.java2d.BackBufferCapsProvider; |
| import sun.java2d.SurfaceData; |
| import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; |
| import sun.java2d.pipe.hw.ExtendedBufferCapabilities; |
| import static sun.java2d.pipe.hw.AccelSurface.*; |
| import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*; |
| |
| public class CGLVolatileSurfaceManager extends VolatileSurfaceManager { |
| |
| private boolean accelerationEnabled; |
| |
| public CGLVolatileSurfaceManager(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(); |
| CGLGraphicsConfig gc = (CGLGraphicsConfig)vImg.getGraphicsConfig(); |
| accelerationEnabled = |
| (transparency == Transparency.OPAQUE) || |
| ((transparency == Transparency.TRANSLUCENT) && |
| (gc.isCapPresent(CAPS_EXT_FBOBJECT) || |
| gc.isCapPresent(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 = null; |
| Component comp = vImg.getComponent(); |
| final ComponentPeer peer = (comp != null) ? comp.getPeer() : null; |
| |
| try { |
| boolean createVSynced = false; |
| boolean forceback = false; |
| if (context instanceof Boolean) { |
| forceback = ((Boolean)context).booleanValue(); |
| if (forceback && peer instanceof BackBufferCapsProvider) { |
| BackBufferCapsProvider provider = |
| (BackBufferCapsProvider)peer; |
| BufferCapabilities caps = provider.getBackBufferCaps(); |
| if (caps instanceof ExtendedBufferCapabilities) { |
| ExtendedBufferCapabilities ebc = |
| (ExtendedBufferCapabilities)caps; |
| if (ebc.getVSync() == VSYNC_ON && |
| ebc.getFlipContents() == COPIED) |
| { |
| createVSynced = true; |
| forceback = false; |
| } |
| } |
| } |
| } |
| |
| if (forceback) { |
| // peer must be non-null in this case |
| // TODO: modify parameter to delegate |
| // sData = CGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER); |
| } else { |
| CGLGraphicsConfig gc = |
| (CGLGraphicsConfig)vImg.getGraphicsConfig(); |
| ColorModel cm = gc.getColorModel(vImg.getTransparency()); |
| int type = vImg.getForcedAccelSurfaceType(); |
| // if acceleration type is forced (type != UNDEFINED) then |
| // use the forced type, otherwise choose one based on caps |
| if (type == OGLSurfaceData.UNDEFINED) { |
| type = gc.isCapPresent(CAPS_EXT_FBOBJECT) ? |
| OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER; |
| } |
| if (createVSynced) { |
| // TODO: modify parameter to delegate |
| // sData = CGLSurfaceData.createData(peer, vImg, type); |
| } else { |
| sData = CGLSurfaceData.createData(gc, |
| vImg.getWidth(), |
| vImg.getHeight(), |
| cm, vImg, type); |
| } |
| } |
| } catch (NullPointerException ex) { |
| sData = null; |
| } catch (OutOfMemoryError er) { |
| sData = null; |
| } |
| |
| return sData; |
| } |
| |
| @Override |
| protected boolean isConfigValid(GraphicsConfiguration gc) { |
| return ((gc == null) || (gc == vImg.getGraphicsConfig())); |
| } |
| |
| @Override |
| public void initContents() { |
| if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) { |
| super.initContents(); |
| } |
| } |
| } |
| |