Source Code Cross Referenced for TextureUnitStateRetained.java in  » 6.0-JDK-Modules » java-3d » javax » media » j3d » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » java 3d » javax.media.j3d 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: TextureUnitStateRetained.java,v $
003:         *
004:         * Copyright 1999-2008 Sun Microsystems, Inc.  All Rights Reserved.
005:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
006:         *
007:         * This code is free software; you can redistribute it and/or modify it
008:         * under the terms of the GNU General Public License version 2 only, as
009:         * published by the Free Software Foundation.  Sun designates this
010:         * particular file as subject to the "Classpath" exception as provided
011:         * by Sun in the LICENSE file that accompanied this code.
012:         *
013:         * This code is distributed in the hope that it will be useful, but WITHOUT
014:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
015:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
016:         * version 2 for more details (a copy is included in the LICENSE file that
017:         * accompanied this code).
018:         *
019:         * You should have received a copy of the GNU General Public License version
020:         * 2 along with this work; if not, write to the Free Software Foundation,
021:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
022:         *
023:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
024:         * CA 95054 USA or visit www.sun.com if you need additional information or
025:         * have any questions.
026:         *
027:         * $Revision: 1.9 $
028:         * $Date: 2008/02/28 20:17:32 $
029:         * $State: Exp $
030:         */
031:
032:        package javax.media.j3d;
033:
034:        import javax.vecmath.Color4f;
035:        import java.util.ArrayList;
036:
037:        class TextureUnitStateRetained extends NodeComponentRetained {
038:
039:            static final int TEXTURE_CHANGED = 0x0001;
040:            static final int TEXTURE_ATTRS_CHANGED = 0x0002;
041:            static final int TEXCOORD_GEN_CHANGED = 0x0004;
042:            static final int ALL_STATE_CHANGED = 0x0008;
043:
044:            TextureRetained texture = null;
045:            TextureAttributesRetained texAttrs = null;
046:            TexCoordGenerationRetained texGen = null;
047:
048:            /**
049:             * An abstract method to validate the texture unit state component
050:             */
051:            final void setTextureUnitStateComponent(NodeComponent comp,
052:                    NodeComponentRetained this Comp, int messageOp) {
053:                if (source.isLive()) {
054:
055:                    if ((comp == null && this Comp == null)
056:                            || (comp != null && comp.retained == this Comp))
057:                        return;
058:
059:                    if (this Comp != null) {
060:                        this Comp.clearLive(refCount);
061:                        this Comp.removeMirrorUsers(this );
062:                    }
063:
064:                    if (comp != null) {
065:                        ((NodeComponentRetained) comp.retained).setLive(
066:                                inBackgroundGroup, refCount);
067:                        // If texture unit is live, then copy all the users of this
068:                        // texture unit state as users of this texture component
069:                        ((NodeComponentRetained) comp.retained)
070:                                .copyMirrorUsers(this );
071:                    }
072:
073:                    if (messageOp != -1) {
074:                        sendMessage(
075:                                messageOp,
076:                                (comp == null ? null
077:                                        : ((NodeComponentRetained) comp.retained).mirror));
078:                    }
079:
080:                }
081:            }
082:
083:            final void initTextureUnitState(Texture texture,
084:                    TextureAttributes texAttrs, TexCoordGeneration texGen) {
085:
086:                initTexture(texture);
087:                initTextureAttributes(texAttrs);
088:                initTexCoordGeneration(texGen);
089:            }
090:
091:            final void setTextureUnitState(Texture texture,
092:                    TextureAttributes texAttrs, TexCoordGeneration texGen) {
093:
094:                setTextureUnitStateComponent(texture, this .texture, -1);
095:                setTextureUnitStateComponent(texAttrs, this .texAttrs, -1);
096:                setTextureUnitStateComponent(texGen, this .texGen, -1);
097:
098:                // send all changes to the target threads in one
099:                // message to avoid modifying the renderBin repeatedly
100:
101:                Object args[] = new Object[3];
102:                args[0] = (texture == null ? null
103:                        : ((TextureRetained) texture.retained).mirror);
104:                args[1] = (texAttrs == null ? null
105:                        : ((TextureAttributesRetained) texAttrs.retained).mirror);
106:                args[2] = (texGen == null ? null
107:                        : ((TexCoordGenerationRetained) texGen.retained).mirror);
108:
109:                sendMessage(ALL_STATE_CHANGED, args);
110:
111:                initTextureUnitState(texture, texAttrs, texGen);
112:            }
113:
114:            final void initTexture(Texture texture) {
115:                if (texture == null)
116:                    this .texture = null;
117:                else
118:                    this .texture = (TextureRetained) texture.retained;
119:            }
120:
121:            final void setTexture(Texture texture) {
122:                setTextureUnitStateComponent(texture, this .texture,
123:                        TEXTURE_CHANGED);
124:                initTexture(texture);
125:            }
126:
127:            final void initTextureAttributes(TextureAttributes texAttrs) {
128:                if (texAttrs == null)
129:                    this .texAttrs = null;
130:                else
131:                    this .texAttrs = (TextureAttributesRetained) texAttrs.retained;
132:            }
133:
134:            final void setTextureAttributes(TextureAttributes texAttrs) {
135:                setTextureUnitStateComponent(texAttrs, this .texAttrs,
136:                        TEXTURE_ATTRS_CHANGED);
137:                initTextureAttributes(texAttrs);
138:            }
139:
140:            final void initTexCoordGeneration(TexCoordGeneration texGen) {
141:                if (texGen == null)
142:                    this .texGen = null;
143:                else
144:                    this .texGen = (TexCoordGenerationRetained) texGen.retained;
145:            }
146:
147:            final void setTexCoordGeneration(TexCoordGeneration texGen) {
148:                setTextureUnitStateComponent(texGen, this .texGen,
149:                        TEXCOORD_GEN_CHANGED);
150:                initTexCoordGeneration(texGen);
151:            }
152:
153:            Texture getTexture() {
154:                return (texture == null ? null : (Texture) texture.source);
155:            }
156:
157:            TextureAttributes getTextureAttributes() {
158:                return (texAttrs == null ? null
159:                        : (TextureAttributes) texAttrs.source);
160:            }
161:
162:            TexCoordGeneration getTexCoordGeneration() {
163:                return (texGen == null ? null
164:                        : (TexCoordGeneration) texGen.source);
165:            }
166:
167:            void updateNative(int unitIndex, Canvas3D cv, boolean reload,
168:                    boolean simulate) {
169:
170:                //System.err.println("TextureUnitState/updateNative: unitIndex= " + unitIndex + " reload= " + reload + " simulate= " + simulate);
171:
172:                // unitIndex can be -1 for the single texture case, so
173:                // can't use unitIndex to index into the cv.texUnitState;
174:                // in this case, use index 0
175:
176:                int index = unitIndex;
177:
178:                if (index < 0)
179:                    index = 0;
180:
181:                boolean dirty = ((cv.canvasDirty & (Canvas3D.TEXTUREATTRIBUTES_DIRTY | Canvas3D.TEXTUREBIN_DIRTY)) != 0);
182:
183:                if (this .texture == null) {
184:                    // if texture is null, then texture mapped is
185:                    // disabled for this texture unit; and no more
186:                    // state update is needed
187:
188:                    //System.err.println("texture is null");
189:
190:                    if (cv.texUnitState[index].texture != null) {
191:                        cv.resetTexture(cv.ctx, unitIndex);
192:                        cv.texUnitState[index].texture = null;
193:                    }
194:                    cv.canvasDirty &= ~Canvas3D.TEXTUREATTRIBUTES_DIRTY;
195:                    return;
196:                } else {
197:
198:                    Pipeline.getPipeline().updateTextureUnitState(cv.ctx,
199:                            unitIndex, true);
200:                }
201:
202:                // reload is needed in a multi-texture case to bind the
203:                // texture parameters to the texture unit state
204:
205:                if (reload || dirty
206:                        || cv.texUnitState[index].texture != this .texture) {
207:
208:                    // texture cannot be null at this point because it is
209:                    // already checked above
210:                    this .texture.updateNative(cv);
211:
212:                    cv.texUnitState[index].texture = this .texture;
213:
214:                }
215:
216:                if (this .texAttrs == null) {
217:                    if (reload || dirty
218:                            || cv.texUnitState[index].texAttrs != null) {
219:                        cv.resetTextureAttributes(cv.ctx);
220:                        if (VirtualUniverse.mc.isD3D()
221:                                && (texGen != null)
222:                                && ((texGen.genMode == TexCoordGeneration.EYE_LINEAR) || ((texGen.genMode == TexCoordGeneration.SPHERE_MAP)))) {
223:                            // We need to reload tex since eye linear 
224:                            // and sphere map in D3D will change the 
225:                            // texture transform matrix also.
226:                            dirty = true;
227:                        }
228:                        cv.setBlendFunc(cv.ctx,
229:                                TransparencyAttributes.BLEND_ONE,
230:                                TransparencyAttributes.BLEND_ZERO);
231:                        cv.texUnitState[index].texAttrs = null;
232:                    }
233:                } else {
234:
235:                    TextureAttributesRetained mTexAttrs;
236:                    if (this .texAttrs.mirror == null) {
237:                        mTexAttrs = this .texAttrs;
238:                    } else {
239:                        mTexAttrs = (TextureAttributesRetained) this .texAttrs.mirror;
240:                    }
241:
242:                    if (mTexAttrs.mirrorCompDirty) {
243:                        // This happen when canvas reference is same as
244:                        // texUnitState.texAttrs and we update the later without
245:                        // notify cache.
246:                        cv.texUnitState[index].texAttrs = null;
247:                        mTexAttrs.mirrorCompDirty = false;
248:                    }
249:
250:                    if (reload || dirty
251:                            || cv.texUnitState[index].texAttrs != mTexAttrs) {
252:                        this .texAttrs
253:                                .updateNative(cv, simulate, texture.format);
254:                        if (VirtualUniverse.mc.isD3D()
255:                                && (texGen != null)
256:                                && ((texGen.genMode == TexCoordGeneration.EYE_LINEAR) || ((texGen.genMode == TexCoordGeneration.SPHERE_MAP)))) {
257:                            dirty = true;
258:                        }
259:                        cv.texUnitState[index].texAttrs = mTexAttrs;
260:                    }
261:                }
262:
263:                if (this .texGen == null) {
264:                    if (reload || dirty
265:                            || cv.texUnitState[index].texGen != null) {
266:                        cv.resetTexCoordGeneration(cv.ctx);
267:                        cv.texUnitState[index].texGen = null;
268:                    }
269:                } else {
270:                    TexCoordGenerationRetained mTexGen;
271:
272:                    if (this .texGen.mirror == null) {
273:                        mTexGen = this .texGen;
274:                    } else {
275:                        mTexGen = (TexCoordGenerationRetained) this .texGen.mirror;
276:                    }
277:
278:                    if (mTexGen.mirrorCompDirty) {
279:                        // This happen when canvas reference is same as
280:                        // texUnitState.texGen and we update the later without
281:                        // notify cache.
282:                        cv.texUnitState[index].texGen = null;
283:                        mTexGen.mirrorCompDirty = false;
284:                    }
285:
286:                    if (reload || dirty
287:                            || cv.texUnitState[index].texGen != mTexGen) {
288:                        this .texGen.updateNative(cv);
289:                        cv.texUnitState[index].texGen = mTexGen;
290:                    }
291:                }
292:                cv.canvasDirty &= ~Canvas3D.TEXTUREATTRIBUTES_DIRTY;
293:            }
294:
295:            /**
296:             * Creates and initializes a mirror object, point the mirror object 
297:             * to the retained object if the object is not editable
298:             */
299:            synchronized void createMirrorObject() {
300:
301:                if (mirror == null) {
302:                    TextureUnitStateRetained mirrorTus = new TextureUnitStateRetained();
303:                    mirror = mirrorTus;
304:                }
305:                mirror.source = source;
306:                initMirrorObject();
307:
308:            }
309:
310:            synchronized void initMirrorObject() {
311:
312:                TextureUnitStateRetained mirrorTus = (TextureUnitStateRetained) mirror;
313:
314:                if (this .texture != null)
315:                    mirrorTus.texture = (TextureRetained) this .texture.mirror;
316:                else
317:                    mirrorTus.texture = null;
318:
319:                if (this .texAttrs != null)
320:                    mirrorTus.texAttrs = (TextureAttributesRetained) this .texAttrs.mirror;
321:                else
322:                    mirrorTus.texAttrs = null;
323:
324:                if (this .texGen != null)
325:                    mirrorTus.texGen = (TexCoordGenerationRetained) this .texGen.mirror;
326:                else
327:                    mirrorTus.texGen = null;
328:            }
329:
330:            /** Update the "component" field of the mirror object with the 
331:             *  given "value"
332:             */
333:            synchronized void updateMirrorObject(int component, Object value) {
334:
335:                TextureUnitStateRetained mirrorTus = (TextureUnitStateRetained) mirror;
336:
337:                if ((component & TEXTURE_CHANGED) != 0) {
338:                    mirrorTus.texture = (TextureRetained) value;
339:                } else if ((component & TEXTURE_ATTRS_CHANGED) != 0) {
340:                    mirrorTus.texAttrs = (TextureAttributesRetained) value;
341:                } else if ((component & TEXCOORD_GEN_CHANGED) != 0) {
342:                    mirrorTus.texGen = (TexCoordGenerationRetained) value;
343:                } else if ((component & ALL_STATE_CHANGED) != 0) {
344:                    Object[] args = (Object[]) value;
345:                    mirrorTus.texture = (TextureRetained) args[0];
346:                    mirrorTus.texAttrs = (TextureAttributesRetained) args[1];
347:                    mirrorTus.texGen = (TexCoordGenerationRetained) args[2];
348:                }
349:            }
350:
351:            boolean equivalent(TextureUnitStateRetained tr) {
352:
353:                if (tr == null) {
354:                    return (false);
355:
356:                } else if ((this .changedFrequent != 0)
357:                        || (tr.changedFrequent != 0)) {
358:                    return (this .mirror == tr);
359:
360:                } else {
361:
362:                    if (this .texture != tr.texture) {
363:                        return false;
364:                    }
365:
366:                    if (this .texAttrs != null
367:                            && !this .texAttrs.equivalent(tr.texAttrs)) {
368:                        return false;
369:                    }
370:
371:                    if (this .texGen != null
372:                            && !this .texGen.equivalent(tr.texGen)) {
373:                        return false;
374:                    }
375:                }
376:
377:                return true;
378:            }
379:
380:            protected Object clone() {
381:                TextureUnitStateRetained tr = (TextureUnitStateRetained) super 
382:                        .clone();
383:
384:                // the cloned object is used for RenderBin only.
385:                // In most cases, it will duplicate all attributes in the RenderBin
386:                // so that updating a mirror object in one level will not affect the
387:                // entire structure of the RenderBin, but will affect only those bins 
388:                // that got affected by the modified mirror object
389:                if (this .texAttrs != null)
390:                    tr.texAttrs = (TextureAttributesRetained) this .texAttrs
391:                            .clone();
392:
393:                if (this .texGen != null)
394:                    tr.texGen = (TexCoordGenerationRetained) this .texGen
395:                            .clone();
396:
397:                return tr;
398:            }
399:
400:            /**
401:             * set the texture unit state according to the specified texture
402:             * unit state
403:             */
404:            protected void set(TextureUnitStateRetained tr) {
405:                super .set(tr);
406:                this .texture = tr.texture;
407:
408:                if (tr.texAttrs == null) {
409:                    this .texAttrs = null;
410:                } else {
411:                    if (this .texAttrs == null) {
412:                        this .texAttrs = (TextureAttributesRetained) tr.texAttrs
413:                                .clone();
414:                    } else {
415:                        this .texAttrs.set(tr.texAttrs);
416:                    }
417:                }
418:
419:                if (tr.texGen == null) {
420:                    this .texGen = null;
421:                } else {
422:                    if (this .texGen == null) {
423:                        this .texGen = (TexCoordGenerationRetained) tr.texGen
424:                                .clone();
425:                    } else {
426:                        this .texGen.set(tr.texGen);
427:                    }
428:                }
429:            }
430:
431:            protected void set(TextureRetained texture,
432:                    TextureAttributesRetained texAttrs,
433:                    TexCoordGenerationRetained texGen) {
434:                this .texture = texture;
435:                this .texAttrs = texAttrs;
436:                this .texGen = texGen;
437:            }
438:
439:            synchronized void addAMirrorUser(Shape3DRetained shape) {
440:
441:                super .addAMirrorUser(shape);
442:
443:                if (texture != null)
444:                    texture.addAMirrorUser(shape);
445:                if (texAttrs != null)
446:                    texAttrs.addAMirrorUser(shape);
447:                if (texGen != null)
448:                    texGen.addAMirrorUser(shape);
449:            }
450:
451:            synchronized void removeAMirrorUser(Shape3DRetained shape) {
452:                super .removeAMirrorUser(shape);
453:
454:                if (texture != null)
455:                    texture.removeAMirrorUser(shape);
456:                if (texAttrs != null)
457:                    texAttrs.removeAMirrorUser(shape);
458:                if (texGen != null)
459:                    texGen.removeAMirrorUser(shape);
460:            }
461:
462:            synchronized void removeMirrorUsers(NodeComponentRetained node) {
463:                super .removeMirrorUsers(node);
464:
465:                if (texture != null)
466:                    texture.removeMirrorUsers(node);
467:                if (texAttrs != null)
468:                    texAttrs.removeMirrorUsers(node);
469:                if (texGen != null)
470:                    texGen.removeMirrorUsers(node);
471:            }
472:
473:            synchronized void copyMirrorUsers(NodeComponentRetained node) {
474:                super .copyMirrorUsers(node);
475:
476:                if (texture != null)
477:                    texture.copyMirrorUsers(node);
478:                if (texAttrs != null)
479:                    texAttrs.copyMirrorUsers(node);
480:                if (texGen != null)
481:                    texGen.copyMirrorUsers(node);
482:            }
483:
484:            void setLive(boolean backgroundGroup, int refCount) {
485:                if (texture != null)
486:                    texture.setLive(backgroundGroup, refCount);
487:
488:                if (texAttrs != null)
489:                    texAttrs.setLive(backgroundGroup, refCount);
490:
491:                if (texGen != null)
492:                    texGen.setLive(backgroundGroup, refCount);
493:
494:                // Increment the reference count and initialize the textureUnitState
495:                // mirror object
496:                super .doSetLive(backgroundGroup, refCount);
497:                super .markAsLive();
498:
499:            }
500:
501:            void clearLive(int refCount) {
502:                super .clearLive(refCount);
503:
504:                if (texture != null)
505:                    texture.clearLive(refCount);
506:                if (texAttrs != null)
507:                    texAttrs.clearLive(refCount);
508:                if (texGen != null)
509:                    texGen.clearLive(refCount);
510:            }
511:
512:            boolean isStatic() {
513:
514:                return (source.capabilityBitsEmpty()
515:                        && ((texture == null) || (texture.isStatic()))
516:                        && ((texAttrs == null) || (texAttrs.isStatic())) && ((texGen == null) || (texGen
517:                        .isStatic())));
518:            }
519:
520:            // Issue 209 - enable this method (was previously commented out)
521:            // Simply pass along to the NodeComponent
522:            void compile(CompileState compState) {
523:                setCompiled();
524:
525:                if (texture != null)
526:                    texture.compile(compState);
527:                if (texAttrs != null)
528:                    texAttrs.compile(compState);
529:                if (texGen != null)
530:                    texGen.compile(compState);
531:            }
532:
533:            boolean equals(TextureUnitStateRetained ts) {
534:                return ((ts == this ) || (ts != null)
535:                        && ((texture == ts.texture) || ((texture != null) && (texture
536:                                .equals(ts.texture))))
537:                        && ((texAttrs == ts.texAttrs) || ((texAttrs != null) && (texAttrs
538:                                .equals(ts.texAttrs))))
539:                        && ((texGen == ts.texGen) || ((texGen != null) && (texGen
540:                                .equals(ts.texGen)))));
541:            }
542:
543:            void setInImmCtx(boolean flag) {
544:                super .setInImmCtx(flag);
545:                if (texture != null)
546:                    texture.setInImmCtx(flag);
547:                if (texAttrs != null)
548:                    texAttrs.setInImmCtx(flag);
549:                if (texGen != null)
550:                    texGen.setInImmCtx(flag);
551:            }
552:
553:            boolean getInImmCtx() {
554:                return (super .getInImmCtx()
555:                        || ((texture != null) && (texture.getInImmCtx()))
556:                        || ((texAttrs != null) && (texAttrs.getInImmCtx())) || ((texGen != null) && (texGen
557:                        .getInImmCtx())));
558:            }
559:
560:            boolean isLive() {
561:                return (source.isLive()
562:                        || ((texture != null) && (texture.source.isLive()))
563:                        || ((texAttrs != null) && (texAttrs.source.isLive())) || ((texGen != null) && (texGen.source
564:                        .isLive())));
565:            }
566:
567:            final void sendMessage(int attrMask, Object attr) {
568:                ArrayList univList = new ArrayList();
569:                ArrayList gaList = Shape3DRetained.getGeomAtomsList(
570:                        mirror.users, univList);
571:
572:                // Send to rendering attribute structure, regardless of
573:                // whether there are users or not (alternate appearance case ..)
574:                J3dMessage createMessage = new J3dMessage();
575:                createMessage.threads = J3dThread.UPDATE_RENDERING_ATTRIBUTES;
576:                createMessage.type = J3dMessage.TEXTURE_UNIT_STATE_CHANGED;
577:                createMessage.universe = null;
578:                createMessage.args[0] = this ;
579:                createMessage.args[1] = new Integer(attrMask);
580:                createMessage.args[2] = attr;
581:                createMessage.args[3] = new Integer(changedFrequent);
582:                VirtualUniverse.mc.processMessage(createMessage);
583:
584:                // System.err.println("univList.size is " + univList.size());
585:                for (int i = 0; i < univList.size(); i++) {
586:                    createMessage = new J3dMessage();
587:                    createMessage.threads = J3dThread.UPDATE_RENDER;
588:                    createMessage.type = J3dMessage.TEXTURE_UNIT_STATE_CHANGED;
589:
590:                    createMessage.universe = (VirtualUniverse) univList.get(i);
591:                    createMessage.args[0] = this ;
592:                    createMessage.args[1] = new Integer(attrMask);
593:                    createMessage.args[2] = attr;
594:
595:                    ArrayList gL = (ArrayList) gaList.get(i);
596:                    GeometryAtom[] gaArr = new GeometryAtom[gL.size()];
597:                    gL.toArray(gaArr);
598:                    createMessage.args[3] = gaArr;
599:
600:                    VirtualUniverse.mc.processMessage(createMessage);
601:                }
602:
603:            }
604:
605:            boolean isTextureEnabled() {
606:                // Check the internal enable , instead of userSpecifiedEnable
607:                return (texture != null && texture.enable);
608:            }
609:
610:            void handleFrequencyChange(int bit) {
611:                switch (bit) {
612:                case TextureUnitState.ALLOW_STATE_WRITE: {
613:                    setFrequencyChangeMask(bit, bit);
614:                }
615:                default:
616:                    break;
617:                }
618:            }
619:        }
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