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 * Copyright (c) 2010, 2011, 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.xr;

import java.awt.*;

import java.awt.geom.*;

import java.awt.image.*;

import sun.awt.*;

import sun.java2d.InvalidPipeException;

import sun.java2d.SunGraphics2D;

import sun.java2d.SurfaceData;

import sun.java2d.SurfaceDataProxy;

import sun.java2d.jules.*;

import sun.java2d.loops.*;

import sun.java2d.pipe.*;

import sun.java2d.x11.*;

import sun.font.FontManagerNativeLibrary;

public abstract class XRSurfaceData extends XSurfaceData {

    X11ComponentPeer peer;

    XRGraphicsConfig graphicsConfig;

    XRBackend renderQueue;

    private RenderLoops solidloops;

    protected int depth;

    private static native void initIDs();

    protected native void XRInitSurface(int depth, int width, int height,

                                        long drawable, int pictFormat);

    native void initXRPicture(long xsdo, int pictForm);

    native void freeXSDOPicture(long xsdo);

    public static final String DESC_BYTE_A8_X11 = "Byte A8 Pixmap";

    public static final String DESC_INT_RGB_X11 = "Integer RGB Pixmap";

    public static final String DESC_INT_ARGB_X11 = "Integer ARGB-Pre Pixmap";

    public static final SurfaceType

        ByteA8X11 = SurfaceType.ByteGray.deriveSubType(DESC_BYTE_A8_X11);

    public static final SurfaceType

        IntRgbX11 = SurfaceType.IntRgb.deriveSubType(DESC_INT_RGB_X11);

    public static final SurfaceType

        IntArgbPreX11 = SurfaceType.IntArgbPre.deriveSubType(DESC_INT_ARGB_X11);

    public Raster getRaster(int x, int y, int w, int h) {

        throw new InternalError("not implemented yet");

    }

    protected XRRenderer xrpipe;

    protected PixelToShapeConverter xrtxpipe;

    protected TextPipe xrtextpipe;

    protected XRDrawImage xrDrawImage;

    protected ShapeDrawPipe aaShapePipe;

    protected PixelToShapeConverter aaPixelToShapeConv;

    public static void initXRSurfaceData() {

        if (!isX11SurfaceDataInitialized()) {

            FontManagerNativeLibrary.load();

            initIDs();

            XRPMBlitLoops.register();

            XRMaskFill.register();

            XRMaskBlit.register();

            setX11SurfaceDataInitialized();

        }

    }

    /**

     * Synchronized accessor method for isDrawableValid.

     */

    protected boolean isXRDrawableValid() {

        try {

            SunToolkit.awtLock();

            return isDrawableValid();

        } finally {

            SunToolkit.awtUnlock();

        }

    }

    @Override

    public SurfaceDataProxy makeProxyFor(SurfaceData srcData) {

        return XRSurfaceDataProxy.createProxy(srcData, graphicsConfig);

    }

    public void validatePipe(SunGraphics2D sg2d) {

        TextPipe textpipe;

        boolean validated = false;

        /*

         * The textpipe for now can't handle TexturePaint when extra-alpha is

         * specified nore XOR mode

         */

        {

            super.validatePipe(sg2d);

            textpipe = sg2d.textpipe;

            validated = true;

        }

        PixelToShapeConverter txPipe = null;

        XRRenderer nonTxPipe = null;

        /*

         * TODO: Can we rely on the GC for ARGB32 surfaces?

         */

        if (sg2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) {

            if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) {

                if (sg2d.compositeState <= SunGraphics2D.COMP_XOR) {

                    txPipe = xrtxpipe;

                    nonTxPipe = xrpipe;

                }

            } else if (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA) {

                if (XRPaints.isValid(sg2d)) {

                    txPipe = xrtxpipe;

                    nonTxPipe = xrpipe;

                }

                // custom paints handled by super.validatePipe() below

            }

        }

        if (sg2d.antialiasHint == SunHints.INTVAL_ANTIALIAS_ON &&

            JulesPathBuf.isCairoAvailable())

        {

            sg2d.shapepipe = aaShapePipe;

            sg2d.drawpipe = aaPixelToShapeConv;

            sg2d.fillpipe = aaPixelToShapeConv;

        } else {

            if (txPipe != null) {

                if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {

                    sg2d.drawpipe = txPipe;

                    sg2d.fillpipe = txPipe;

                } else if (sg2d.strokeState != SunGraphics2D.STROKE_THIN) {

                    sg2d.drawpipe = txPipe;

                    sg2d.fillpipe = nonTxPipe;

                } else {

                    sg2d.drawpipe = nonTxPipe;

                    sg2d.fillpipe = nonTxPipe;

                }

                sg2d.shapepipe = nonTxPipe;

            } else {

                if (!validated) {

                    super.validatePipe(sg2d);

                }

            }

        }

        // install the text pipe based on our earlier decision

        sg2d.textpipe = textpipe;

        // always override the image pipe with the specialized XRender pipe

        sg2d.imagepipe = xrDrawImage;

    }

    protected MaskFill getMaskFill(SunGraphics2D sg2d) {

        }

    }

    public RenderLoops getRenderLoops(SunGraphics2D sg2d) {

        if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR &&

            sg2d.compositeState <= SunGraphics2D.COMP_ALPHA)

        {

            return solidloops;

        }

        return super.getRenderLoops(sg2d);

    }

    public GraphicsConfiguration getDeviceConfiguration() {

        return graphicsConfig;

    }

    /**

     * Method for instantiating a Window SurfaceData

     */

    public static XRWindowSurfaceData createData(X11ComponentPeer peer) {

        XRGraphicsConfig gc = getGC(peer);

        return new XRWindowSurfaceData(peer, gc, gc.getSurfaceType());

    }

    /**

     * Method for instantiating a Pixmap SurfaceData (offscreen).

     * If the surface * is opaque a 24-bit/RGB surface is chosen,

     * otherwise a 32-bit ARGB surface.

     */

    public static XRPixmapSurfaceData createData(XRGraphicsConfig gc,

                                                 int width, int height,

                                                 ColorModel cm, Image image,

                                                 long drawable,

                                                 int transparency) {

        int depth = transparency > Transparency.OPAQUE ? 32 : 24;

        if (depth == 24) {

            cm = new DirectColorModel(depth,

                                      0x00FF0000, 0x0000FF00, 0x000000FF);

        } else {

            cm = new DirectColorModel(depth, 0x00FF0000, 0x0000FF00,

                                      0x000000FF, 0xFF000000);

        }

        return new XRPixmapSurfaceData

            (gc, width, height, image, getSurfaceType(gc, transparency),

             cm, drawable, transparency,

             XRUtils.getPictureFormatForTransparency(transparency), depth);

    }

    protected XRSurfaceData(X11ComponentPeer peer, XRGraphicsConfig gc,

        SurfaceType sType, ColorModel cm, int depth, int transparency)

    {

        super(sType, cm);

        this.peer = peer;

        this.graphicsConfig = gc;

        this.solidloops = graphicsConfig.getSolidLoops(sType);

        this.depth = depth;

        initOps(peer, graphicsConfig, depth);

        setBlitProxyKey(gc.getProxyKey());

    }

    protected XRSurfaceData(XRBackend renderQueue) {

        super(XRSurfaceData.IntRgbX11,

              new DirectColorModel(24, 0x00FF0000, 0x0000FF00, 0x000000FF));

        this.renderQueue = renderQueue;

    }

    /**

     * Inits the XRender-data-structures which belong to the XRSurfaceData.

     *

     * @param pictureFormat

     */

    public void initXRender(int pictureFormat) {

        try {

            SunToolkit.awtLock();

            initXRPicture(getNativeOps(), pictureFormat);

            renderQueue = XRCompositeManager.getInstance(this).getBackend();

            maskBuffer = XRCompositeManager.getInstance(this);

        } catch (Throwable ex) {

            ex.printStackTrace();

        } finally {

            SunToolkit.awtUnlock();

        }

    }

    public static XRGraphicsConfig getGC(X11ComponentPeer peer) {

        if (peer != null) {

            return (XRGraphicsConfig) peer.getGraphicsConfiguration();

        } else {

            GraphicsEnvironment env =

                GraphicsEnvironment.getLocalGraphicsEnvironment();

            GraphicsDevice gd = env.getDefaultScreenDevice();

            return (XRGraphicsConfig) gd.getDefaultConfiguration();

        }

    }

    /**

     * Returns a boolean indicating whether or not a copyArea from the given

     * rectangle source coordinates might be incomplete and result in X11

     * GraphicsExposure events being generated from XCopyArea. This method

     * allows the SurfaceData copyArea method to determine if it needs to set

     * the GraphicsExposures attribute of the X11 GC to True or False to receive

     * or avoid the events.

     *

     * @return true if there is any chance that an XCopyArea from the given

     *         source coordinates could produce any X11 Exposure events.

     */

    public abstract boolean canSourceSendExposures(int x, int y, int w, int h);

    /**

     * CopyArea is implemented using the "old" X11 GC, therefor clip and

     * needExposures have to be validated against that GC. Pictures and GCs

     * don't share state.

     */

    public void validateCopyAreaGC(Region gcClip, boolean needExposures) {

        if (validatedGCClip != gcClip) {

            if (gcClip != null)

                renderQueue.setGCClipRectangles(xgc, gcClip);

            validatedGCClip = gcClip;

        }

        if (validatedExposures != needExposures) {

            validatedExposures = needExposures;

            renderQueue.setGCExposures(xgc, needExposures);

        }

        if (validatedXorComp != null) {

            renderQueue.setGCMode(xgc, true);

            renderQueue.setGCForeground(xgc, validatedGCForegroundPixel);

            validatedXorComp = null;

        }

    }

    public boolean copyArea(SunGraphics2D sg2d, int x, int y, int w, int h,

                            int dx, int dy) {

        if (xrpipe == null) {

            if (!isXRDrawableValid()) {

                return true;

            }

            makePipes();

        }

        CompositeType comptype = sg2d.imageComp;

        if (sg2d.transformState < SunGraphics2D.TRANSFORM_TRANSLATESCALE &&

            (CompositeType.SrcOverNoEa.equals(comptype) ||

             CompositeType.SrcNoEa.equals(comptype)))

        {

            x += sg2d.transX;

            y += sg2d.transY;

            try {

                SunToolkit.awtLock();

                boolean needExposures = canSourceSendExposures(x, y, w, h);

                validateCopyAreaGC(sg2d.getCompClip(), needExposures);

                renderQueue.copyArea(xid, xid, xgc, x, y, w, h, x + dx, y + dy);

            } finally {

                SunToolkit.awtUnlock();

            }

            return true;

        }

        return false;

    }

    /**

     * Returns the XRender SurfaceType which is able to fullfill the specified

     * transparency requirement.

     */

    public static SurfaceType getSurfaceType(XRGraphicsConfig gc,

                                             int transparency) {

        SurfaceType sType = null;

        switch (transparency) {

        case Transparency.OPAQUE:

            sType = XRSurfaceData.IntRgbX11;

            break;

        case Transparency.BITMASK:

        case Transparency.TRANSLUCENT:

            sType = XRSurfaceData.IntArgbPreX11;

            break;

        }

        return sType;

    }

    public void invalidate() {

        if (isValid()) {

            setInvalid();

            super.invalidate();

        }

    }

    private long xgc; // GC is still used for copyArea

    private int validatedGCForegroundPixel = 0;

    private XORComposite validatedXorComp;

    private int xid;

    public int picture;

    public XRCompositeManager maskBuffer;

    private Region validatedClip;

    private Region validatedGCClip;

    private boolean validatedExposures = true;

    boolean transformInUse = false;

    AffineTransform validatedSourceTransform = new AffineTransform();

    AffineTransform staticSrcTx = null;

    int validatedRepeat = XRUtils.RepeatNone;

    int validatedFilter = XRUtils.FAST;

    /**

     * Validates an XRSurfaceData when used as source. Note that the clip is

     * applied when used as source as well as destination.

     */

    void validateAsSource(AffineTransform sxForm, int repeat, int filter) {

        if (validatedClip != null) {

            validatedClip = null;

            renderQueue.setClipRectangles(picture, null);

        }

        if (validatedRepeat != repeat && repeat != -1) {

            validatedRepeat = repeat;

            renderQueue.setPictureRepeat(picture, repeat);

        }

        if (sxForm == null) {

            if (transformInUse) {

                validatedSourceTransform.setToIdentity();

                renderQueue.setPictureTransform(picture,

                                                validatedSourceTransform);

                transformInUse = false;

            }

        } else if (!transformInUse ||

                   (transformInUse && !sxForm.equals(validatedSourceTransform))) {

            validatedSourceTransform.setTransform(sxForm.getScaleX(),

                                                  sxForm.getShearY(),

                                                  sxForm.getShearX(),

                                                  sxForm.getScaleY(),

                                                  sxForm.getTranslateX(),

                                                  sxForm.getTranslateY());

            AffineTransform srcTransform = validatedSourceTransform;

            if(staticSrcTx != null) {

                // Apply static transform set when used as texture or gradient.

                // Create a copy to not modify validatedSourceTransform as

                // this would confuse the validation logic.

                srcTransform = new AffineTransform(validatedSourceTransform);

                srcTransform.preConcatenate(staticSrcTx);

            }

            renderQueue.setPictureTransform(picture, srcTransform);

            transformInUse = true;

        }

        if (filter != validatedFilter && filter != -1) {

            renderQueue.setFilter(picture, filter);

            validatedFilter = filter;

        }

    }

    /**

     * Validates the Surface when used as destination.

     */

    public void validateAsDestination(SunGraphics2D sg2d, Region clip) {

        if (!isValid()) {

            throw new InvalidPipeException("bounds changed");

        }

        boolean updateGCClip = false;

        if (clip != validatedClip) {

            renderQueue.setClipRectangles(picture, clip);

            validatedClip = clip;

            updateGCClip = true;

        }

        if (sg2d != null && sg2d.compositeState == SunGraphics2D.COMP_XOR) {

            if (validatedXorComp != sg2d.getComposite()) {

                validatedXorComp = (XORComposite) sg2d.getComposite();

                renderQueue.setGCMode(xgc, false);

            }

            // validate pixel

            int pixel = sg2d.pixel;

            if (validatedGCForegroundPixel != pixel) {

                int xorpixelmod = validatedXorComp.getXorPixel();

                renderQueue.setGCForeground(xgc, pixel ^ xorpixelmod);

                validatedGCForegroundPixel = pixel;

            }

            if (updateGCClip) {

                renderQueue.setGCClipRectangles(xgc, clip);

            }

        }

    }

    public synchronized void makePipes() { /*

                                            * TODO: Why is this synchronized,

                                            * but access not?

                                            */

        if (xrpipe == null) {

            try {

                SunToolkit.awtLock();

                xgc = XCreateGC(getNativeOps());

                xrpipe = new XRRenderer(maskBuffer.getMaskBuffer());

                xrtxpipe = new PixelToShapeConverter(xrpipe);

                xrtextpipe = maskBuffer.getTextRenderer();

                xrDrawImage = new XRDrawImage();