src/java.desktop/unix/classes/sun/java2d/xr/XRCompositeManager.java
author prr
Tue, 14 Nov 2017 11:47:49 -0800
changeset 47838 f0c8554f0bce
parent 47216 71c04702a3d5
child 49081 977219d0ee00
permissions -rw-r--r--
8186306: Remove pisces from Java2D sources + build. Reviewed-by: serb, neugens
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/*
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 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package sun.java2d.xr;
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import java.awt.*;
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import java.awt.geom.*;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import sun.font.*;
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import sun.java2d.*;
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import sun.java2d.loops.*;
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/**
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 * Manages per-application resources, e.g. the 1x1 pixmap used for solid color
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 * fill as well as per-application state e.g. the currently set source picture
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 * used for composition .
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 *
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 * @author Clemens Eisserer
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 */
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public class XRCompositeManager {
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    private static boolean enableGradCache = true;
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    private static XRCompositeManager instance;
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    private static final int SOLID = 0;
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    private static final int TEXTURE = 1;
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    private static final int GRADIENT = 2;
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    int srcType;
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    XRSolidSrcPict solidSrc32;
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    XRSurfaceData texture;
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    XRSurfaceData gradient;
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    int alphaMask = XRUtils.None;
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    XRColor solidColor = new XRColor();
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    float extraAlpha = 1.0f;
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    byte compRule = XRUtils.PictOpOver;
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    XRColor alphaColor = new XRColor();
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    XRSurfaceData solidSrcPict;
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    int alphaMaskPict;
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    int gradCachePixmap;
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    int gradCachePicture;
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    boolean xorEnabled = false;
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    int validatedPixel = 0;
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    Composite validatedComp;
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    Paint validatedPaint;
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    float validatedExtraAlpha = 1.0f;
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    XRBackend con;
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    MaskTileManager maskBuffer;
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    XRTextRenderer textRenderer;
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    XRMaskImage maskImage;
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    public static synchronized XRCompositeManager getInstance(
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            XRSurfaceData surface) {
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        if (instance == null) {
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            instance = new XRCompositeManager(surface);
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        }
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        return instance;
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    }
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    private XRCompositeManager(XRSurfaceData surface) {
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        con = new XRBackendNative();
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        String gradProp =
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            AccessController.doPrivileged(new PrivilegedAction<String>() {
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                public String run() {
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                    return System.getProperty("sun.java2d.xrgradcache");
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                }
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            });
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        enableGradCache = gradProp == null ||
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                          !(gradProp.equalsIgnoreCase("false") ||
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                          gradProp.equalsIgnoreCase("f"));
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        XRPaints.register(this);
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        initResources(surface);
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        maskBuffer = new MaskTileManager(this, surface.getXid());
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        textRenderer = new XRTextRenderer(this);
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        maskImage = new XRMaskImage(this, surface.getXid());
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    }
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    public void initResources(XRSurfaceData surface) {
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        int parentXid = surface.getXid();
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        solidSrc32 = new XRSolidSrcPict(con, parentXid);
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        setForeground(0);
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        int extraAlphaMask = con.createPixmap(parentXid, 8, 1, 1);
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        alphaMaskPict = con.createPicture(extraAlphaMask,
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                XRUtils.PictStandardA8);
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        con.setPictureRepeat(alphaMaskPict, XRUtils.RepeatNormal);
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        con.renderRectangle(alphaMaskPict, XRUtils.PictOpClear,
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                XRColor.NO_ALPHA, 0, 0, 1, 1);
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        if (enableGradCache) {
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            gradCachePixmap = con.createPixmap(parentXid, 32,
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                    MaskTileManager.MASK_SIZE, MaskTileManager.MASK_SIZE);
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            gradCachePicture = con.createPicture(gradCachePixmap,
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                    XRUtils.PictStandardARGB32);
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        }
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    }
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    public void setForeground(int pixel) {
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        solidColor.setColorValues(pixel, true);
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    }
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    public void setGradientPaint(XRSurfaceData gradient) {
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        if (this.gradient != null) {
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            con.freePicture(this.gradient.picture);
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        }
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        this.gradient = gradient;
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        srcType = GRADIENT;
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    }
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    public void setTexturePaint(XRSurfaceData texture) {
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        this.texture = texture;
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        this.srcType = TEXTURE;
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    }
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    public void XRResetPaint() {
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        srcType = SOLID;
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    }
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    public void validateCompositeState(Composite comp, AffineTransform xform,
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            Paint paint, SunGraphics2D sg2d) {
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        boolean updatePaint = (paint != validatedPaint) || paint == null;
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        // validate composite
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        if ((comp != validatedComp)) {
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            if (comp != null) {
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                setComposite(comp);
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            } else {
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                comp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER);
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                setComposite(comp);
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            }
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            // the paint state is dependent on the composite state, so make
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            // sure we update the color below
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            updatePaint = true;
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            validatedComp = comp;
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        }
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        if (sg2d != null && (validatedPixel != sg2d.pixel  || updatePaint)) {
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            validatedPixel = sg2d.pixel;
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            setForeground(validatedPixel);
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        }
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        // validate paint
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        if (updatePaint) {
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            if (paint != null && sg2d != null
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                    && sg2d.paintState >= SunGraphics2D.PAINT_GRADIENT) {
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                XRPaints.setPaint(sg2d, paint);
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            } else {
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                XRResetPaint();
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            }
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            validatedPaint = paint;
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        }
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        if (srcType != SOLID) {
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            AffineTransform at = (AffineTransform) xform.clone();
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            try {
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                at.invert();
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            } catch (NoninvertibleTransformException e) {
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                at.setToIdentity();
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            }
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            getCurrentSource().validateAsSource(at, -1, XRUtils.ATransOpToXRQuality(sg2d.interpolationType));
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        }
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    }
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    private void setComposite(Composite comp) {
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        if (comp instanceof AlphaComposite) {
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            AlphaComposite aComp = (AlphaComposite) comp;
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            validatedExtraAlpha = aComp.getAlpha();
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            this.compRule = XRUtils.j2dAlphaCompToXR(aComp.getRule());
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            this.extraAlpha = validatedExtraAlpha;
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            if (extraAlpha == 1.0f) {
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                alphaMask = XRUtils.None;
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                alphaColor.alpha = XRColor.FULL_ALPHA.alpha;
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            } else {
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                alphaColor.alpha = XRColor
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                        .byteToXRColorValue((int) (extraAlpha * 255));
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                alphaMask = alphaMaskPict;
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                con.renderRectangle(alphaMaskPict, XRUtils.PictOpSrc,
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                        alphaColor, 0, 0, 1, 1);
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            }
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            xorEnabled = false;
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        } else if (comp instanceof XORComposite) {
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            /* XOR composite validation is handled in XRSurfaceData */
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            xorEnabled = true;
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        } else {
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            throw new InternalError(
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                    "Composite accaleration not implemented for: "
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                            + comp.getClass().getName());
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        }
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    }
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    public boolean maskRequired() {
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        return (!xorEnabled)
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                && ((srcType != SOLID)
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                        || (srcType == SOLID && (solidColor.alpha != 0xffff) || (extraAlpha != 1.0f)));
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    }
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    public void XRComposite(int src, int mask, int dst, int srcX, int srcY,
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            int maskX, int maskY, int dstX, int dstY, int width, int height) {
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        int cachedSrc = (src == XRUtils.None) ? getCurrentSource().picture : src;
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        int cachedX = srcX;
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        int cachedY = srcY;
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        if (enableGradCache && gradient != null
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                && cachedSrc == gradient.picture) {
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            con.renderComposite(XRUtils.PictOpSrc, gradient.picture,
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                    XRUtils.None, gradCachePicture, srcX, srcY, 0, 0, 0, 0,
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                    width, height);
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            cachedX = 0;
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            cachedY = 0;
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            cachedSrc = gradCachePicture;
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        }
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        con.renderComposite(compRule, cachedSrc, mask, dst, cachedX, cachedY,
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                maskX, maskY, dstX, dstY, width, height);
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    }
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    public void XRRenderRectangles(XRSurfaceData dst, GrowableRectArray rects) {
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        if (xorEnabled) {
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            con.GCRectangles(dst.getXid(), dst.getGC(), rects);
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        } else {
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            if (rects.getSize() == 1) {
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                con.renderRectangle(dst.getPicture(), compRule, solidColor,
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                        rects.getX(0), rects.getY(0), rects.getWidth(0), rects.getHeight(0));
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            } else {
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                con.renderRectangles(dst.getPicture(), compRule, solidColor, rects);
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            }
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        }
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    }
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    public void XRCompositeRectangles(XRSurfaceData dst, GrowableRectArray rects) {
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        int srcPict = getCurrentSource().picture;
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        for(int i=0; i < rects.getSize(); i++) {
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            int x = rects.getX(i);
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            int y = rects.getY(i);
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            int width = rects.getWidth(i);
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            int height = rects.getHeight(i);
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            con.renderComposite(compRule, srcPict, XRUtils.None, dst.picture, x, y, 0, 0, x, y, width, height);
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        }
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    }
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    protected XRSurfaceData getCurrentSource() {
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        switch(srcType) {
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        case SOLID:
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            return solidSrc32.prepareSrcPict(validatedPixel);
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        case TEXTURE:
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            return texture;
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        case GRADIENT:
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            return gradient;
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        }
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        return null;
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    }
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    public void compositeBlit(XRSurfaceData src, XRSurfaceData dst, int sx,
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            int sy, int dx, int dy, int w, int h) {
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        con.renderComposite(compRule, src.picture, alphaMask, dst.picture, sx,
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                sy, 0, 0, dx, dy, w, h);
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    }
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    public void compositeText(XRSurfaceData dst, int sx, int sy, int glyphSet,
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            int maskFormat, GrowableEltArray elts) {
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        /*
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         * Try to emulate the SRC blend mode with SRC_OVER.
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         * We bail out during pipe validation for cases where this is not possible.
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         */
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        byte textCompRule = (compRule != XRUtils.PictOpSrc) ? compRule : XRUtils.PictOpOver;
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        con.XRenderCompositeText(textCompRule, getCurrentSource().picture, dst.picture,
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                maskFormat, sx, sy, 0, 0, glyphSet, elts);
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    }
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    public XRColor getMaskColor() {
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        return !isTexturePaintActive() ? XRColor.FULL_ALPHA : getAlphaColor();
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    }
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    public int getExtraAlphaMask() {
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        return alphaMask;
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    }
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    public boolean isTexturePaintActive() {
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        return srcType == TEXTURE;
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    }
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    public boolean isSolidPaintActive() {
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        return srcType == SOLID;
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    }
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    public XRColor getAlphaColor() {
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        return alphaColor;
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    }
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    public XRBackend getBackend() {
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        return con;
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    }
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    public float getExtraAlpha() {
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        return validatedExtraAlpha;
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    }
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    public byte getCompRule() {
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        return compRule;
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    }
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    public XRTextRenderer getTextRenderer() {
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        return textRenderer;
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    }
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    public MaskTileManager getMaskBuffer() {
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        return maskBuffer;
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    }
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    public XRMaskImage getMaskImage() {
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        return maskImage;
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    }
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}