JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2003, 2007, 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
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package sun.java2d.opengl;

import java.awt.Composite;
import sun.java2d.SurfaceData;
import sun.java2d.loops.CompositeType;
import sun.java2d.loops.GraphicsPrimitive;
import sun.java2d.loops.GraphicsPrimitiveMgr;
import sun.java2d.loops.SurfaceType;
import sun.java2d.pipe.Region;
import sun.java2d.pipe.BufferedMaskBlit;
import static sun.java2d.loops.CompositeType.*;
import static sun.java2d.loops.SurfaceType.*;

class OGLMaskBlit extends BufferedMaskBlit {

    static void register() {
        GraphicsPrimitive[] primitives = {
            new OGLMaskBlit(IntArgb,    SrcOver),
            new OGLMaskBlit(IntArgbPre, SrcOver),
            new OGLMaskBlit(IntRgb,     SrcOver),
            new OGLMaskBlit(IntRgb,     SrcNoEa),
            new OGLMaskBlit(IntBgr,     SrcOver),
            new OGLMaskBlit(IntBgr,     SrcNoEa),
        };
        GraphicsPrimitiveMgr.register(primitives);
    }

    private OGLMaskBlit(SurfaceType srcType,
                        CompositeType compType)
    {
        super(OGLRenderQueue.getInstance(),
              srcType, compType, OGLSurfaceData.OpenGLSurface);
    }

    @Override
    protected void validateContext(SurfaceData dstData,

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