--- /dev/null 2019-03-05 14:31:12.000000000 +0300 +++ new/src/java.desktop/macosx/classes/sun/java2d/metal/MTLSurfaceDataProxy.java 2019-03-05 14:31:12.000000000 +0300 @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2019, 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.metal; + +import sun.java2d.SurfaceData; +import sun.java2d.SurfaceDataProxy; +import sun.java2d.loops.CompositeType; + +import java.awt.*; + +/** + * The proxy class contains the logic for when to replace a + * SurfaceData with a cached OGL Texture and the code to create + * the accelerated surfaces. + */ +public class MTLSurfaceDataProxy extends SurfaceDataProxy { + public static SurfaceDataProxy createProxy(SurfaceData srcData, + MTLGraphicsConfigBase dstConfig) + { + if (srcData instanceof MTLSurfaceDataBase) { + // srcData must be a VolatileImage which either matches + // our pixel format or not - either way we do not cache it... + return UNCACHED; + } + + return new MTLSurfaceDataProxy(dstConfig, srcData.getTransparency()); + } + + MTLGraphicsConfigBase oglgc; + int transparency; + + public MTLSurfaceDataProxy(MTLGraphicsConfigBase oglgc, int transparency) { + this.oglgc = oglgc; + this.transparency = transparency; + } + + @Override + public SurfaceData validateSurfaceData(SurfaceData srcData, + SurfaceData cachedData, + int w, int h) + { + if (cachedData == null) { + try { + cachedData = oglgc.createManagedSurface(w, h, transparency); + } catch (OutOfMemoryError er) { + return null; + } + } + return cachedData; + } + + @Override + public boolean isSupportedOperation(SurfaceData srcData, + int txtype, + CompositeType comp, + Color bgColor) + { + return comp.isDerivedFrom(CompositeType.AnyAlpha) && + (bgColor == null || transparency == Transparency.OPAQUE); + } +}