1 /*
   2  * Copyright (c) 1999, 2014, 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.x11;
  27 
  28 import java.awt.GraphicsDevice;
  29 import java.awt.GraphicsEnvironment;
  30 import java.awt.Color;
  31 import java.awt.Composite;
  32 import java.awt.Rectangle;
  33 import java.awt.GraphicsConfiguration;
  34 import java.awt.Image;
  35 import java.awt.color.ColorSpace;
  36 import java.awt.Transparency;
  37 import java.awt.image.BufferedImage;
  38 import java.awt.image.ColorModel;
  39 import java.awt.image.ComponentColorModel;
  40 import java.awt.image.DirectColorModel;
  41 import java.awt.image.IndexColorModel;
  42 import java.awt.image.Raster;
  43 import java.awt.peer.ComponentPeer;
  44 
  45 import sun.awt.SunHints;
  46 import sun.awt.SunToolkit;
  47 import sun.awt.X11ComponentPeer;
  48 import sun.awt.X11GraphicsConfig;
  49 import sun.awt.X11GraphicsEnvironment;
  50 import sun.awt.image.PixelConverter;
  51 import sun.font.X11TextRenderer;
  52 import sun.java2d.InvalidPipeException;
  53 import sun.java2d.SunGraphics2D;
  54 import sun.java2d.SunGraphicsEnvironment;
  55 import sun.java2d.SurfaceData;
  56 import sun.java2d.SurfaceDataProxy;
  57 import sun.java2d.loops.SurfaceType;
  58 import sun.java2d.loops.CompositeType;
  59 import sun.java2d.loops.RenderLoops;
  60 import sun.java2d.loops.GraphicsPrimitive;
  61 import sun.java2d.loops.XORComposite;
  62 import sun.java2d.loops.Blit;
  63 import sun.java2d.pipe.ValidatePipe;
  64 import sun.java2d.pipe.PixelToShapeConverter;
  65 import sun.java2d.pipe.TextPipe;
  66 import sun.java2d.pipe.Region;
  67 
  68 public abstract class X11SurfaceData extends XSurfaceData {
  69     X11ComponentPeer peer;
  70     X11GraphicsConfig graphicsConfig;
  71     private RenderLoops solidloops;
  72 
  73     protected int depth;
  74 
  75     private static native void initIDs(Class<?> xorComp);
  76     protected native void initSurface(int depth, int width, int height,
  77                                       long drawable);
  78 
  79     public static final String
  80         DESC_INT_BGR_X11        = "Integer BGR Pixmap";
  81     public static final String
  82         DESC_INT_RGB_X11        = "Integer RGB Pixmap";
  83 
  84     public static final String
  85         DESC_4BYTE_ABGR_PRE_X11 = "4 byte ABGR Pixmap with pre-multplied alpha";
  86     public static final String
  87         DESC_INT_ARGB_PRE_X11   = "Integer ARGB Pixmap with pre-multiplied " +
  88                                   "alpha";
  89 
  90     public static final String
  91         DESC_BYTE_IND_OPQ_X11   = "Byte Indexed Opaque Pixmap";
  92 
  93     public static final String
  94         DESC_INT_BGR_X11_BM     = "Integer BGR Pixmap with 1-bit transp";
  95     public static final String
  96         DESC_INT_RGB_X11_BM     = "Integer RGB Pixmap with 1-bit transp";
  97     public static final String
  98         DESC_BYTE_IND_X11_BM    = "Byte Indexed Pixmap with 1-bit transp";
  99 
 100     public static final String
 101         DESC_BYTE_GRAY_X11      = "Byte Gray Opaque Pixmap";
 102     public static final String
 103         DESC_INDEX8_GRAY_X11    = "Index8 Gray Opaque Pixmap";
 104 
 105     public static final String
 106         DESC_BYTE_GRAY_X11_BM   = "Byte Gray Opaque Pixmap with 1-bit transp";
 107     public static final String
 108         DESC_INDEX8_GRAY_X11_BM = "Index8 Gray Opaque Pixmap with 1-bit transp";
 109 
 110     public static final String
 111         DESC_3BYTE_RGB_X11      = "3 Byte RGB Pixmap";
 112     public static final String
 113         DESC_3BYTE_BGR_X11      = "3 Byte BGR Pixmap";
 114 
 115     public static final String
 116         DESC_3BYTE_RGB_X11_BM   = "3 Byte RGB Pixmap with 1-bit transp";
 117     public static final String
 118         DESC_3BYTE_BGR_X11_BM   = "3 Byte BGR Pixmap with 1-bit transp";
 119 
 120     public static final String
 121         DESC_USHORT_555_RGB_X11 = "Ushort 555 RGB Pixmap";
 122     public static final String
 123         DESC_USHORT_565_RGB_X11 = "Ushort 565 RGB Pixmap";
 124 
 125     public static final String
 126         DESC_USHORT_555_RGB_X11_BM
 127                                 = "Ushort 555 RGB Pixmap with 1-bit transp";
 128     public static final String
 129         DESC_USHORT_565_RGB_X11_BM
 130                                 = "Ushort 565 RGB Pixmap with 1-bit transp";
 131     public static final String
 132         DESC_USHORT_INDEXED_X11 = "Ushort Indexed Pixmap";
 133 
 134     public static final String
 135         DESC_USHORT_INDEXED_X11_BM = "Ushort Indexed Pixmap with 1-bit transp";
 136 
 137     public static final SurfaceType IntBgrX11 =
 138         SurfaceType.IntBgr.deriveSubType(DESC_INT_BGR_X11);
 139     public static final SurfaceType IntRgbX11 =
 140         SurfaceType.IntRgb.deriveSubType(DESC_INT_RGB_X11);
 141 
 142     public static final SurfaceType FourByteAbgrPreX11 =
 143         SurfaceType.FourByteAbgrPre.deriveSubType(DESC_4BYTE_ABGR_PRE_X11);
 144     public static final SurfaceType IntArgbPreX11 =
 145         SurfaceType.IntArgbPre.deriveSubType(DESC_INT_ARGB_PRE_X11);
 146 
 147     public static final SurfaceType ThreeByteRgbX11 =
 148         SurfaceType.ThreeByteRgb.deriveSubType(DESC_3BYTE_RGB_X11);
 149     public static final SurfaceType ThreeByteBgrX11 =
 150         SurfaceType.ThreeByteBgr.deriveSubType(DESC_3BYTE_BGR_X11);
 151 
 152     public static final SurfaceType UShort555RgbX11 =
 153         SurfaceType.Ushort555Rgb.deriveSubType(DESC_USHORT_555_RGB_X11);
 154     public static final SurfaceType UShort565RgbX11 =
 155         SurfaceType.Ushort565Rgb.deriveSubType(DESC_USHORT_565_RGB_X11);
 156 
 157     public static final SurfaceType UShortIndexedX11 =
 158         SurfaceType.UshortIndexed.deriveSubType(DESC_USHORT_INDEXED_X11);
 159 
 160     public static final SurfaceType ByteIndexedOpaqueX11 =
 161         SurfaceType.ByteIndexedOpaque.deriveSubType(DESC_BYTE_IND_OPQ_X11);
 162 
 163     public static final SurfaceType ByteGrayX11 =
 164         SurfaceType.ByteGray.deriveSubType(DESC_BYTE_GRAY_X11);
 165     public static final SurfaceType Index8GrayX11 =
 166         SurfaceType.Index8Gray.deriveSubType(DESC_INDEX8_GRAY_X11);
 167 
 168     // Bitmap surface types
 169     public static final SurfaceType IntBgrX11_BM =
 170         SurfaceType.Custom.deriveSubType(DESC_INT_BGR_X11_BM,
 171                                          PixelConverter.Xbgr.instance);
 172     public static final SurfaceType IntRgbX11_BM =
 173         SurfaceType.Custom.deriveSubType(DESC_INT_RGB_X11_BM,
 174                                          PixelConverter.Xrgb.instance);
 175 
 176     public static final SurfaceType ThreeByteRgbX11_BM =
 177         SurfaceType.Custom.deriveSubType(DESC_3BYTE_RGB_X11_BM,
 178                                          PixelConverter.Xbgr.instance);
 179     public static final SurfaceType ThreeByteBgrX11_BM =
 180         SurfaceType.Custom.deriveSubType(DESC_3BYTE_BGR_X11_BM,
 181                                          PixelConverter.Xrgb.instance);
 182 
 183     public static final SurfaceType UShort555RgbX11_BM =
 184         SurfaceType.Custom.deriveSubType(DESC_USHORT_555_RGB_X11_BM,
 185                                          PixelConverter.Ushort555Rgb.instance);
 186     public static final SurfaceType UShort565RgbX11_BM =
 187         SurfaceType.Custom.deriveSubType(DESC_USHORT_565_RGB_X11_BM,
 188                                          PixelConverter.Ushort565Rgb.instance);
 189 
 190     public static final SurfaceType UShortIndexedX11_BM =
 191         SurfaceType.Custom.deriveSubType(DESC_USHORT_INDEXED_X11_BM);
 192 
 193     public static final SurfaceType ByteIndexedX11_BM =
 194         SurfaceType.Custom.deriveSubType(DESC_BYTE_IND_X11_BM);
 195 
 196     public static final SurfaceType ByteGrayX11_BM =
 197         SurfaceType.Custom.deriveSubType(DESC_BYTE_GRAY_X11_BM);
 198     public static final SurfaceType Index8GrayX11_BM =
 199         SurfaceType.Custom.deriveSubType(DESC_INDEX8_GRAY_X11_BM);
 200 
 201 
 202     private static Boolean accelerationEnabled = null;
 203 
 204     public Raster getRaster(int x, int y, int w, int h) {
 205         throw new InternalError("not implemented yet");
 206     }
 207 
 208     protected X11Renderer x11pipe;
 209     protected PixelToShapeConverter x11txpipe;
 210     protected static TextPipe x11textpipe;
 211 
 212     static {
 213        if (!isX11SurfaceDataInitialized() &&
 214            !GraphicsEnvironment.isHeadless()) {
 215 
 216             initIDs(XORComposite.class);
 217 
 218             String xtextpipe = java.security.AccessController.doPrivileged
 219                 (new sun.security.action.GetPropertyAction("sun.java2d.xtextpipe"));
 220             if (xtextpipe == null || "true".startsWith(xtextpipe)) {
 221                 if ("true".equals(xtextpipe)) {
 222                     // Only verbose if they use the full string "true"
 223                     System.out.println("using X11 text renderer");
 224                 }
 225                 x11textpipe = new X11TextRenderer();
 226                 if (GraphicsPrimitive.tracingEnabled()) {
 227                     x11textpipe = ((X11TextRenderer) x11textpipe).traceWrap();
 228                 }
 229             } else {
 230                 if ("false".equals(xtextpipe)) {
 231                     // Only verbose if they use the full string "false"
 232                     System.out.println("using DGA text renderer");
 233                 }
 234                 x11textpipe = solidTextRenderer;
 235             }
 236 
 237             if (isAccelerationEnabled()) {
 238                 X11PMBlitLoops.register();
 239                 X11PMBlitBgLoops.register();
 240             }
 241        }
 242     }
 243 
 244     /**
 245      * Returns true if shared memory pixmaps are available
 246      */
 247     private static native boolean isShmPMAvailable();
 248 
 249     public static boolean isAccelerationEnabled() {
 250         if (accelerationEnabled == null) {
 251 
 252             if (GraphicsEnvironment.isHeadless()) {
 253                 accelerationEnabled = Boolean.FALSE;
 254             } else {
 255                 String prop = java.security.AccessController.doPrivileged(
 256                         new sun.security.action.GetPropertyAction("sun.java2d.pmoffscreen"));
 257                 if (prop != null) {
 258                     // true iff prop==true, false otherwise
 259                     accelerationEnabled = Boolean.valueOf(prop);
 260                 } else {
 261                     boolean isDisplayLocal = false;
 262                     GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
 263                     if (ge instanceof SunGraphicsEnvironment) {
 264                         isDisplayLocal = ((SunGraphicsEnvironment) ge).isDisplayLocal();
 265                      }
 266 
 267                     // EXA based drivers tend to place pixmaps in VRAM, slowing down readbacks.
 268                     // Don't use pixmaps if we are local and shared memory Pixmaps
 269                     // are not available.
 270                     accelerationEnabled = !(isDisplayLocal && !isShmPMAvailable());
 271                 }
 272             }
 273         }
 274         return accelerationEnabled.booleanValue();
 275     }
 276 
 277     @Override
 278     public SurfaceDataProxy makeProxyFor(SurfaceData srcData) {
 279         return X11SurfaceDataProxy.createProxy(srcData, graphicsConfig);
 280     }
 281 
 282     public void validatePipe(SunGraphics2D sg2d) {
 283         if (sg2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON &&
 284             sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR &&
 285             (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY ||
 286              sg2d.compositeState == SunGraphics2D.COMP_XOR))
 287         {
 288             if (x11txpipe == null) {
 289                 /*
 290                  * Note: this is thread-safe since x11txpipe is the
 291                  * second of the two pipes constructed in makePipes().
 292                  * In the rare case we are racing against another
 293                  * thread making new pipes, setting lazypipe is a
 294                  * safe alternative to waiting for the other thread.
 295                  */
 296                 sg2d.drawpipe = lazypipe;
 297                 sg2d.fillpipe = lazypipe;
 298                 sg2d.shapepipe = lazypipe;
 299                 sg2d.imagepipe = lazypipe;
 300                 sg2d.textpipe = lazypipe;
 301                 return;
 302             }
 303 
 304             if (sg2d.clipState == SunGraphics2D.CLIP_SHAPE) {
 305                 // Do this to init textpipe correctly; we will override the
 306                 // other non-text pipes below
 307                 // REMIND: we should clean this up eventually instead of
 308                 // having this work duplicated.
 309                 super.validatePipe(sg2d);
 310             } else {
 311                 switch (sg2d.textAntialiasHint) {
 312 
 313                 case SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT:
 314                     /* equating to OFF which it is for us */
 315                 case SunHints.INTVAL_TEXT_ANTIALIAS_OFF:
 316                     // Use X11 pipe even if DGA is available since DGA
 317                     // text slows everything down when mixed with X11 calls
 318                     if (sg2d.compositeState == SunGraphics2D.COMP_ISCOPY) {
 319                         sg2d.textpipe = x11textpipe;
 320                     } else {
 321                         sg2d.textpipe = solidTextRenderer;
 322                     }
 323                     break;
 324 
 325                 case SunHints.INTVAL_TEXT_ANTIALIAS_ON:
 326                     // Remind: may use Xrender for these when composite is
 327                     // copy as above, or if remote X11.
 328                     sg2d.textpipe = aaTextRenderer;
 329                     break;
 330 
 331                 default:
 332                     switch (sg2d.getFontInfo().aaHint) {
 333 
 334                     case SunHints.INTVAL_TEXT_ANTIALIAS_LCD_HRGB:
 335                     case SunHints.INTVAL_TEXT_ANTIALIAS_LCD_VRGB:
 336                         sg2d.textpipe = lcdTextRenderer;
 337                         break;
 338 
 339                     case SunHints.INTVAL_TEXT_ANTIALIAS_OFF:
 340                     // Use X11 pipe even if DGA is available since DGA
 341                     // text slows everything down when mixed with X11 calls
 342                     if (sg2d.compositeState == SunGraphics2D.COMP_ISCOPY) {
 343                         sg2d.textpipe = x11textpipe;
 344                     } else {
 345                         sg2d.textpipe = solidTextRenderer;
 346                     }
 347                     break;
 348 
 349                     case SunHints.INTVAL_TEXT_ANTIALIAS_ON:
 350                         sg2d.textpipe = aaTextRenderer;
 351                         break;
 352 
 353                     default:
 354                         sg2d.textpipe = solidTextRenderer;
 355                     }
 356                 }
 357             }
 358 
 359             if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
 360                 sg2d.drawpipe = x11txpipe;
 361                 sg2d.fillpipe = x11txpipe;
 362             } else if (sg2d.strokeState != SunGraphics2D.STROKE_THIN){
 363                 sg2d.drawpipe = x11txpipe;
 364                 sg2d.fillpipe = x11pipe;
 365             } else {
 366                 sg2d.drawpipe = x11pipe;
 367                 sg2d.fillpipe = x11pipe;
 368             }
 369             sg2d.shapepipe = x11pipe;
 370             sg2d.imagepipe = imagepipe;
 371 
 372             // This is needed for AA text.
 373             // Note that even an X11TextRenderer can dispatch AA text
 374             // if a GlyphVector overrides the AA setting.
 375             // We use getRenderLoops() rather than setting solidloops
 376             // directly so that we get the appropriate loops in XOR mode.
 377             if (sg2d.loops == null) {
 378                 // assert(some pipe will always be a LoopBasedPipe)
 379                 sg2d.loops = getRenderLoops(sg2d);
 380             }
 381         } else {
 382             super.validatePipe(sg2d);
 383         }
 384     }
 385 
 386     public RenderLoops getRenderLoops(SunGraphics2D sg2d) {
 387         if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR &&
 388             sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY)
 389         {
 390             return solidloops;
 391         }
 392         return super.getRenderLoops(sg2d);
 393     }
 394 
 395     public GraphicsConfiguration getDeviceConfiguration() {
 396         return graphicsConfig;
 397     }
 398 
 399     /**
 400      * Method for instantiating a Window SurfaceData
 401      */
 402     public static X11WindowSurfaceData createData(X11ComponentPeer peer) {
 403        X11GraphicsConfig gc = getGC(peer);
 404        return new X11WindowSurfaceData(peer, gc, gc.getSurfaceType());
 405     }
 406 
 407     /**
 408      * Method for instantiating a Pixmap SurfaceData (offscreen)
 409      */
 410     public static X11PixmapSurfaceData createData(X11GraphicsConfig gc,
 411                                                   int width, int height,
 412                                                   ColorModel cm, Image image,
 413                                                   long drawable,
 414                                                   int transparency)
 415     {
 416         return new X11PixmapSurfaceData(gc, width, height, image,
 417                                         getSurfaceType(gc, transparency, true),
 418                                         cm, drawable, transparency);
 419     }
 420 
 421 //    /**
 422 //     * Initializes the native Ops pointer.
 423 //     */
 424 //    private native void initOps(X11ComponentPeer peer,
 425 //                                X11GraphicsConfig gc, int depth);
 426 
 427     protected X11SurfaceData(X11ComponentPeer peer,
 428                              X11GraphicsConfig gc,
 429                              SurfaceType sType,
 430                              ColorModel cm) {
 431         super(sType, cm);
 432         this.peer = peer;
 433         this.graphicsConfig = gc;
 434         this.solidloops = graphicsConfig.getSolidLoops(sType);
 435         this.depth = cm.getPixelSize();
 436         initOps(peer, graphicsConfig, depth);
 437         if (isAccelerationEnabled()) {
 438             setBlitProxyKey(gc.getProxyKey());
 439         }
 440     }
 441 
 442     public static X11GraphicsConfig getGC(X11ComponentPeer peer) {
 443         if (peer != null) {
 444             return (X11GraphicsConfig) peer.getGraphicsConfiguration();
 445         } else {
 446             GraphicsEnvironment env =
 447                 GraphicsEnvironment.getLocalGraphicsEnvironment();
 448             GraphicsDevice gd = env.getDefaultScreenDevice();
 449             return (X11GraphicsConfig)gd.getDefaultConfiguration();
 450         }
 451     }
 452 
 453     /**
 454      * Returns a boolean indicating whether or not a copyArea from
 455      * the given rectangle source coordinates might be incomplete
 456      * and result in X11 GraphicsExposure events being generated
 457      * from XCopyArea.
 458      * This method allows the SurfaceData copyArea method to determine
 459      * if it needs to set the GraphicsExposures attribute of the X11 GC
 460      * to True or False to receive or avoid the events.
 461      * @return true if there is any chance that an XCopyArea from the
 462      *              given source coordinates could produce any X11
 463      *              Exposure events.
 464      */
 465     public abstract boolean canSourceSendExposures(int x, int y, int w, int h);
 466 
 467     public boolean copyArea(SunGraphics2D sg2d,
 468                             int x, int y, int w, int h, int dx, int dy)
 469     {
 470         if (x11pipe == null) {
 471             if (!isDrawableValid()) {
 472                 return true;
 473             }
 474             makePipes();
 475         }
 476         CompositeType comptype = sg2d.imageComp;
 477         if ((CompositeType.SrcOverNoEa.equals(comptype) ||
 478              CompositeType.SrcNoEa.equals(comptype)))
 479         {
 480             SunToolkit.awtLock();
 481             try {
 482                 boolean needExposures = canSourceSendExposures(x, y, w, h);
 483                 long xgc = getBlitGC(sg2d.getCompClip(), needExposures);
 484                 x11pipe.devCopyArea(getNativeOps(), xgc,
 485                                     x, y,
 486                                     x + dx, y + dy,
 487                                     w, h);
 488             } finally {
 489                 SunToolkit.awtUnlock();
 490             }
 491             return true;
 492         }
 493         return false;
 494     }
 495 
 496     public static SurfaceType getSurfaceType(X11GraphicsConfig gc,
 497                                              int transparency)
 498     {
 499         return getSurfaceType(gc, transparency, false);
 500     }
 501 
 502     @SuppressWarnings("fallthrough")
 503     public static SurfaceType getSurfaceType(X11GraphicsConfig gc,
 504                                              int transparency,
 505                                              boolean pixmapSurface)
 506     {
 507         boolean transparent = (transparency == Transparency.BITMASK);
 508         SurfaceType sType;
 509         ColorModel cm = gc.getColorModel();
 510         switch (cm.getPixelSize()) {
 511         case 24:
 512             if (gc.getBitsPerPixel() == 24) {
 513                 if (cm instanceof DirectColorModel) {
 514                     // 4517321: We will always use ThreeByteBgr for 24 bpp
 515                     // surfaces, regardless of the pixel masks reported by
 516                     // X11.  Despite ambiguity in the X11 spec in how 24 bpp
 517                     // surfaces are treated, it appears that the best
 518                     // SurfaceType for these configurations (including
 519                     // some Matrox Millenium and ATI Radeon boards) is
 520                     // ThreeByteBgr.
 521                     sType = transparent ? X11SurfaceData.ThreeByteBgrX11_BM : X11SurfaceData.ThreeByteBgrX11;
 522                 } else {
 523                     throw new sun.java2d.InvalidPipeException("Unsupported bit " +
 524                                                               "depth/cm combo: " +
 525                                                               cm.getPixelSize()  +
 526                                                               ", " + cm);
 527                 }
 528                 break;
 529             }
 530             // Fall through for 32 bit case
 531         case 32:
 532             if (cm instanceof DirectColorModel) {
 533                 if (((SunToolkit)java.awt.Toolkit.getDefaultToolkit()
 534                      ).isTranslucencyCapable(gc) && !pixmapSurface)
 535                 {
 536                     sType = X11SurfaceData.IntArgbPreX11;
 537                 } else {
 538                     if (((DirectColorModel)cm).getRedMask() == 0xff0000) {
 539                         sType = transparent ? X11SurfaceData.IntRgbX11_BM :
 540                                               X11SurfaceData.IntRgbX11;
 541                     } else {
 542                         sType = transparent ? X11SurfaceData.IntBgrX11_BM :
 543                                               X11SurfaceData.IntBgrX11;
 544                     }
 545                 }
 546             } else if (cm instanceof ComponentColorModel) {
 547                    sType = X11SurfaceData.FourByteAbgrPreX11;
 548             } else {
 549 
 550                 throw new sun.java2d.InvalidPipeException("Unsupported bit " +
 551                                                           "depth/cm combo: " +
 552                                                           cm.getPixelSize()  +
 553                                                           ", " + cm);
 554             }
 555             break;
 556         case 15:
 557             sType = transparent ? X11SurfaceData.UShort555RgbX11_BM : X11SurfaceData.UShort555RgbX11;
 558             break;
 559         case 16:
 560             if ((cm instanceof DirectColorModel) &&
 561                 (((DirectColorModel)cm).getGreenMask() == 0x3e0))
 562             {
 563                 // fix for 4352984: Riva128 on Linux
 564                 sType = transparent ? X11SurfaceData.UShort555RgbX11_BM : X11SurfaceData.UShort555RgbX11;
 565             } else {
 566                 sType = transparent ? X11SurfaceData.UShort565RgbX11_BM : X11SurfaceData.UShort565RgbX11;
 567             }
 568             break;
 569         case  12:
 570             if (cm instanceof IndexColorModel) {
 571                 sType = transparent ?
 572                     X11SurfaceData.UShortIndexedX11_BM :
 573                     X11SurfaceData.UShortIndexedX11;
 574             } else {
 575                 throw new sun.java2d.InvalidPipeException("Unsupported bit " +
 576                                                           "depth: " +
 577                                                           cm.getPixelSize() +
 578                                                           " cm="+cm);
 579             }
 580             break;
 581         case 8:
 582             if (cm.getColorSpace().getType() == ColorSpace.TYPE_GRAY &&
 583                 cm instanceof ComponentColorModel) {
 584                 sType = transparent ? X11SurfaceData.ByteGrayX11_BM : X11SurfaceData.ByteGrayX11;
 585             } else if (cm instanceof IndexColorModel &&
 586                        isOpaqueGray((IndexColorModel)cm)) {
 587                 sType = transparent ? X11SurfaceData.Index8GrayX11_BM : X11SurfaceData.Index8GrayX11;
 588             } else {
 589                 sType = transparent ? X11SurfaceData.ByteIndexedX11_BM : X11SurfaceData.ByteIndexedOpaqueX11;
 590             }
 591             break;
 592         default:
 593             throw new sun.java2d.InvalidPipeException("Unsupported bit " +
 594                                                       "depth: " +
 595                                                       cm.getPixelSize());
 596         }
 597         return sType;
 598     }
 599 
 600     public void invalidate() {
 601         if (isValid()) {
 602             setInvalid();
 603             super.invalidate();
 604         }
 605     }
 606 
 607     /**
 608      * The following methods and variables are used to keep the Java-level
 609      * context state in sync with the native X11 GC associated with this
 610      * X11SurfaceData object.
 611      */
 612 
 613     private static native void XSetCopyMode(long xgc);
 614     private static native void XSetXorMode(long xgc);
 615     private static native void XSetForeground(long xgc, int pixel);
 616 
 617     private long xgc;
 618     private Region validatedClip;
 619     private XORComposite validatedXorComp;
 620     private int xorpixelmod;
 621     private int validatedPixel;
 622     private boolean validatedExposures = true;
 623 
 624     public final long getRenderGC(Region clip,
 625                                   int compState, Composite comp,
 626                                   int pixel)
 627     {
 628         return getGC(clip, compState, comp, pixel, validatedExposures);
 629     }
 630 
 631     public final long getBlitGC(Region clip, boolean needExposures) {
 632         return getGC(clip, SunGraphics2D.COMP_ISCOPY, null,
 633                      validatedPixel, needExposures);
 634     }
 635 
 636     final long getGC(Region clip,
 637                      int compState, Composite comp,
 638                      int pixel, boolean needExposures)
 639     {
 640         // assert SunToolkit.isAWTLockHeldByCurrentThread();
 641 
 642         if (!isValid()) {
 643             throw new InvalidPipeException("bounds changed");
 644         }
 645 
 646         // validate clip
 647         if (clip != validatedClip) {
 648             validatedClip = clip;
 649             if (clip != null) {
 650                 XSetClip(xgc,
 651                          clip.getLoX(), clip.getLoY(),
 652                          clip.getHiX(), clip.getHiY(),
 653                          (clip.isRectangular() ? null : clip));
 654             } else {
 655                 XResetClip(xgc);
 656             }
 657         }
 658 
 659         // validate composite
 660         if (compState == SunGraphics2D.COMP_ISCOPY) {
 661             if (validatedXorComp != null) {
 662                 validatedXorComp = null;
 663                 xorpixelmod = 0;
 664                 XSetCopyMode(xgc);
 665             }
 666         } else {
 667             if (validatedXorComp != comp) {
 668                 validatedXorComp = (XORComposite)comp;
 669                 xorpixelmod = validatedXorComp.getXorPixel();
 670                 XSetXorMode(xgc);
 671             }
 672         }
 673 
 674         // validate pixel
 675         pixel ^= xorpixelmod;
 676         if (pixel != validatedPixel) {
 677             validatedPixel = pixel;
 678             XSetForeground(xgc, pixel);
 679         }
 680 
 681         if (validatedExposures != needExposures) {
 682             validatedExposures = needExposures;
 683             XSetGraphicsExposures(xgc, needExposures);
 684         }
 685 
 686         return xgc;
 687     }
 688 
 689     public synchronized void makePipes() {
 690         if (x11pipe == null) {
 691             SunToolkit.awtLock();
 692             try {
 693                 xgc = XCreateGC(getNativeOps());
 694             } finally {
 695                 SunToolkit.awtUnlock();
 696             }
 697             x11pipe = X11Renderer.getInstance();
 698             x11txpipe = new PixelToShapeConverter(x11pipe);
 699         }
 700     }
 701 
 702     public static class X11WindowSurfaceData extends X11SurfaceData {
 703         public X11WindowSurfaceData(X11ComponentPeer peer,
 704                                     X11GraphicsConfig gc,
 705                                     SurfaceType sType) {
 706             super(peer, gc, sType, peer.getColorModel());
 707             if (isDrawableValid()) {
 708                 makePipes();
 709             }
 710         }
 711 
 712         public SurfaceData getReplacement() {
 713             return peer.getSurfaceData();
 714         }
 715 
 716         public Rectangle getBounds() {
 717             Rectangle r = peer.getBounds();
 718             r.x = r.y = 0;
 719             return r;
 720         }
 721 
 722         @Override
 723         public boolean canSourceSendExposures(int x, int y, int w, int h) {
 724             return true;
 725         }
 726 
 727         /**
 728          * Returns destination Component associated with this SurfaceData.
 729          */
 730         public Object getDestination() {
 731             return peer.getTarget();
 732         }
 733     }
 734 
 735     public static class X11PixmapSurfaceData extends X11SurfaceData {
 736 
 737         Image                   offscreenImage;
 738         int                     width;
 739         int                     height;
 740         int                     transparency;
 741 
 742         public X11PixmapSurfaceData(X11GraphicsConfig gc,
 743                                     int width, int height,
 744                                     Image image,
 745                                     SurfaceType sType, ColorModel cm,
 746                                     long drawable, int transparency)
 747         {
 748             super(null, gc, sType, cm);
 749             this.width = width;
 750             this.height = height;
 751             offscreenImage = image;
 752             this.transparency = transparency;
 753             initSurface(depth, width, height, drawable);
 754             makePipes();
 755         }
 756 
 757         public SurfaceData getReplacement() {
 758             return restoreContents(offscreenImage);
 759         }
 760 
 761         /**
 762          * Need this since the surface data is created with
 763          * the color model of the target GC, which is always
 764          * opaque. But in SunGraphics2D.blitSD we choose loops
 765          * based on the transparency on the source SD, so
 766          * it could choose wrong loop (blit instead of blitbg,
 767          * for example).
 768          */
 769         public int getTransparency() {
 770             return transparency;
 771         }
 772 
 773         public Rectangle getBounds() {
 774             return new Rectangle(width, height);
 775         }
 776 
 777         @Override
 778         public boolean canSourceSendExposures(int x, int y, int w, int h) {
 779             return (x < 0 || y < 0 || (x+w) > width || (y+h) > height);
 780         }
 781 
 782         public void flush() {
 783             /*
 784              * We need to invalidate the surface before disposing the
 785              * native Drawable and GC.  This way if an application tries
 786              * to render to an already flushed X11SurfaceData, we will notice
 787              * in the validate() method above that it has been invalidated,
 788              * and we will avoid using those native resources that have
 789              * already been disposed.
 790              */
 791             invalidate();
 792             flushNativeSurface();
 793         }
 794 
 795         /**
 796          * Returns destination Image associated with this SurfaceData.
 797          */
 798         public Object getDestination() {
 799             return offscreenImage;
 800         }
 801     }
 802 
 803     private static LazyPipe lazypipe = new LazyPipe();
 804 
 805     public static class LazyPipe extends ValidatePipe {
 806         public boolean validate(SunGraphics2D sg2d) {
 807             X11SurfaceData xsd = (X11SurfaceData) sg2d.surfaceData;
 808             if (!xsd.isDrawableValid()) {
 809                 return false;
 810             }
 811             xsd.makePipes();
 812             return super.validate(sg2d);
 813         }
 814     }
 815 }