1 /* 2 * Copyright (c) 2019, 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 sun.java2d.metal; 27 28 import sun.java2d.SurfaceData; 29 import sun.java2d.SurfaceDataProxy; 30 import sun.java2d.loops.CompositeType; 31 32 import java.awt.*; 33 34 /** 35 * The proxy class contains the logic for when to replace a 36 * SurfaceData with a cached OGL Texture and the code to create 37 * the accelerated surfaces. 38 */ 39 public class MTLSurfaceDataProxy extends SurfaceDataProxy { 40 public static SurfaceDataProxy createProxy(SurfaceData srcData, 41 MTLGraphicsConfig dstConfig) 42 { 43 if (srcData instanceof MTLSurfaceData) { 44 // srcData must be a VolatileImage which either matches 45 // our pixel format or not - either way we do not cache it... 46 return UNCACHED; 47 } 48 49 return new MTLSurfaceDataProxy(dstConfig, srcData.getTransparency()); 50 } 51 52 MTLGraphicsConfig oglgc; 53 int transparency; 54 55 public MTLSurfaceDataProxy(MTLGraphicsConfig oglgc, int transparency) { 56 this.oglgc = oglgc; 57 this.transparency = transparency; 58 } 59 60 @Override 61 public SurfaceData validateSurfaceData(SurfaceData srcData, 62 SurfaceData cachedData, 63 int w, int h) 64 { 65 if (cachedData == null) { 66 try { 67 cachedData = oglgc.createManagedSurface(w, h, transparency); 68 } catch (OutOfMemoryError er) { 69 return null; 70 } 71 } 72 return cachedData; 73 } 74 75 @Override 76 public boolean isSupportedOperation(SurfaceData srcData, 77 int txtype, 78 CompositeType comp, 79 Color bgColor) 80 { 81 return comp.isDerivedFrom(CompositeType.AnyAlpha) && 82 (bgColor == null || transparency == Transparency.OPAQUE); 83 } 84 }