| /* |
| * Copyright (c) 2011, 2015, 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 sun.lwawt.macosx.CFRetainedResource; |
| import sun.lwawt.LWWindowPeer; |
| |
| import sun.java2d.SurfaceData; |
| import sun.java2d.NullSurfaceData; |
| |
| import sun.awt.CGraphicsConfig; |
| |
| import java.awt.Rectangle; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.Transparency; |
| |
| public class CGLLayer extends CFRetainedResource { |
| |
| private native long nativeCreateLayer(); |
| private static native void nativeSetScale(long layerPtr, double scale); |
| private static native void validate(long layerPtr, CGLSurfaceData cglsd); |
| private static native void blitTexture(long layerPtr); |
| |
| private LWWindowPeer peer; |
| private int scale = 1; |
| |
| private SurfaceData surfaceData; // represents intermediate buffer (texture) |
| |
| public CGLLayer(LWWindowPeer peer) { |
| super(0, true); |
| |
| setPtr(nativeCreateLayer()); |
| this.peer = peer; |
| } |
| |
| public long getPointer() { |
| return ptr; |
| } |
| |
| public Rectangle getBounds() { |
| return peer.getBounds(); |
| } |
| |
| public GraphicsConfiguration getGraphicsConfiguration() { |
| return peer.getGraphicsConfiguration(); |
| } |
| |
| public boolean isOpaque() { |
| return !peer.isTranslucent(); |
| } |
| |
| public int getTransparency() { |
| return isOpaque() ? Transparency.OPAQUE : Transparency.TRANSLUCENT; |
| } |
| |
| public Object getDestination() { |
| return peer.getTarget(); |
| } |
| |
| public SurfaceData replaceSurfaceData() { |
| if (getBounds().isEmpty()) { |
| surfaceData = NullSurfaceData.theInstance; |
| return surfaceData; |
| } |
| |
| // the layer redirects all painting to the buffer's graphics |
| // and blits the buffer to the layer surface (in drawInCGLContext callback) |
| CGraphicsConfig gc = (CGraphicsConfig)getGraphicsConfiguration(); |
| surfaceData = gc.createSurfaceData(this); |
| setScale(gc.getDevice().getScaleFactor()); |
| // the layer holds a reference to the buffer, which in |
| // turn has a reference back to this layer |
| if (surfaceData instanceof CGLSurfaceData) { |
| validate((CGLSurfaceData)surfaceData); |
| } |
| |
| return surfaceData; |
| } |
| |
| public SurfaceData getSurfaceData() { |
| return surfaceData; |
| } |
| |
| public void validate(final CGLSurfaceData cglsd) { |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| execute(ptr -> validate(ptr, cglsd)); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| // break the connection between the layer and the buffer |
| validate(null); |
| super.dispose(); |
| } |
| |
| private void setScale(final int _scale) { |
| if (scale != _scale) { |
| scale = _scale; |
| execute(ptr -> nativeSetScale(ptr, scale)); |
| } |
| } |
| |
| // ---------------------------------------------------------------------- |
| // NATIVE CALLBACKS |
| // ---------------------------------------------------------------------- |
| |
| private void drawInCGLContext() { |
| // tell the flusher thread not to update the intermediate buffer |
| // until we are done blitting from it |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| execute(ptr -> blitTexture(ptr)); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| } |