1 /* 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.prism.es2; 27 28 import com.sun.prism.paint.Color; 29 import java.security.AccessController; 30 import java.security.PrivilegedAction; 31 32 33 class MonocleGLDrawable extends GLDrawable { 34 35 private static final boolean transparentFramebuffer = 36 AccessController.doPrivileged(new PrivilegedAction<Boolean>() { 37 @Override 38 public Boolean run() { 39 return Boolean.getBoolean("com.sun.javafx.transparentFramebuffer"); 40 } 41 }); 42 43 private static native long nCreateDrawable(long nativeWindow, long nativeCtxInfo); 44 private static native long nGetDummyDrawable(long nativeCtxInfo); 45 private static native boolean nSwapBuffers(long nativeDInfo); 46 boolean isDummy = false; 47 48 MonocleGLDrawable(GLPixelFormat pixelFormat) { 49 50 super(0L, pixelFormat); 51 long nDInfo = nGetDummyDrawable(pixelFormat.getNativePFInfo()); 52 setNativeDrawableInfo(nDInfo); 53 isDummy = true; 54 } 55 56 MonocleGLDrawable(long nativeWindow, GLPixelFormat pixelFormat) { 57 super(nativeWindow, pixelFormat); 58 long nDInfo = nCreateDrawable(nativeWindow, pixelFormat.getNativePFInfo()); 59 setNativeDrawableInfo(nDInfo); 60 } 61 62 @Override 63 boolean swapBuffers(GLContext glCtx) { 64 boolean retval = nSwapBuffers(getNativeDrawableInfo()); 65 // TODO: This looks hacky. Need to find a better approach. 66 // For Monocle, we are painting in Z-order from the back, 67 // possibly (likely) with an app that does not cover the 68 // full screen. We need to start each paint with an empty canvas. 69 // The assumption here was that we would do that by clearing the buffer. 70 glCtx.clearBuffers( 71 transparentFramebuffer ? Color.TRANSPARENT : Color.BLACK, 72 true, true, true); 73 return retval; 74 } 75 }