rsContext.cpp revision e0aab4a8ff1cffd8cfaedc2623db94072549e0e5 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "rsDevice.h"
18#include "rsContext.h"
19#include "rsThreadIO.h"
20#include <ui/FramebufferNativeWindow.h>
21
22#include <sys/types.h>
23#include <sys/resource.h>
24#include <sched.h>
25
26#include <cutils/properties.h>
27
28#include <cutils/sched_policy.h>
29#include <sys/syscall.h>
30#include <string.h>
31
32using namespace android;
33using namespace android::renderscript;
34
35pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
36pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;
37
38bool Context::initGLThread() {
39    pthread_mutex_lock(&gInitMutex);
40    LOGV("initGLThread start %p", this);
41
42    if (!mHal.funcs.initGraphics(this)) {
43        pthread_mutex_unlock(&gInitMutex);
44        LOGE("%p, initGraphics failed", this);
45        return false;
46    }
47
48    pthread_mutex_unlock(&gInitMutex);
49    return true;
50}
51
52void Context::deinitEGL() {
53    LOGV("%p, deinitEGL", this);
54    mHal.funcs.shutdownGraphics(this);
55}
56
57Context::PushState::PushState(Context *con) {
58    mRsc = con;
59    if (con->mIsGraphicsContext) {
60        mFragment.set(con->getProgramFragment());
61        mVertex.set(con->getProgramVertex());
62        mStore.set(con->getProgramStore());
63        mRaster.set(con->getProgramRaster());
64        mFont.set(con->getFont());
65    }
66}
67
68Context::PushState::~PushState() {
69    if (mRsc->mIsGraphicsContext) {
70        mRsc->setProgramFragment(mFragment.get());
71        mRsc->setProgramVertex(mVertex.get());
72        mRsc->setProgramStore(mStore.get());
73        mRsc->setProgramRaster(mRaster.get());
74        mRsc->setFont(mFont.get());
75    }
76}
77
78
79uint32_t Context::runScript(Script *s) {
80    PushState(this);
81
82    uint32_t ret = s->run(this);
83    return ret;
84}
85
86uint32_t Context::runRootScript() {
87    timerSet(RS_TIMER_SCRIPT);
88    mStateFragmentStore.mLast.clear();
89    uint32_t ret = runScript(mRootScript.get());
90
91    return ret;
92}
93
94uint64_t Context::getTime() const {
95#ifndef ANDROID_RS_SERIALIZE
96    struct timespec t;
97    clock_gettime(CLOCK_MONOTONIC, &t);
98    return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
99#else
100    return 0;
101#endif //ANDROID_RS_SERIALIZE
102}
103
104void Context::timerReset() {
105    for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
106        mTimers[ct] = 0;
107    }
108}
109
110void Context::timerInit() {
111    mTimeLast = getTime();
112    mTimeFrame = mTimeLast;
113    mTimeLastFrame = mTimeLast;
114    mTimerActive = RS_TIMER_INTERNAL;
115    mAverageFPSFrameCount = 0;
116    mAverageFPSStartTime = mTimeLast;
117    mAverageFPS = 0;
118    timerReset();
119}
120
121void Context::timerFrame() {
122    mTimeLastFrame = mTimeFrame;
123    mTimeFrame = getTime();
124    // Update average fps
125    const uint64_t averageFramerateInterval = 1000 * 1000000;
126    mAverageFPSFrameCount ++;
127    uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
128    if (inverval >= averageFramerateInterval) {
129        inverval = inverval / 1000000;
130        mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
131        mAverageFPSFrameCount = 0;
132        mAverageFPSStartTime = mTimeFrame;
133    }
134}
135
136void Context::timerSet(Timers tm) {
137    uint64_t last = mTimeLast;
138    mTimeLast = getTime();
139    mTimers[mTimerActive] += mTimeLast - last;
140    mTimerActive = tm;
141}
142
143void Context::timerPrint() {
144    double total = 0;
145    for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
146        total += mTimers[ct];
147    }
148    uint64_t frame = mTimeFrame - mTimeLastFrame;
149    mTimeMSLastFrame = frame / 1000000;
150    mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
151    mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;
152
153
154    if (props.mLogTimes) {
155        LOGV("RS: Frame (%i),   Script %2.1f%% (%i),  Swap %2.1f%% (%i),  Idle %2.1f%% (%lli),  Internal %2.1f%% (%lli), Avg fps: %u",
156             mTimeMSLastFrame,
157             100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
158             100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
159             100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
160             100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
161             mAverageFPS);
162    }
163}
164
165bool Context::setupCheck() {
166
167    mFragmentStore->setup(this, &mStateFragmentStore);
168    mFragment->setup(this, &mStateFragment);
169    mRaster->setup(this, &mStateRaster);
170    mVertex->setup(this, &mStateVertex);
171    mFBOCache.setup(this);
172    return true;
173}
174
175void Context::setupProgramStore() {
176    mFragmentStore->setup(this, &mStateFragmentStore);
177}
178
179static bool getProp(const char *str) {
180    char buf[PROPERTY_VALUE_MAX];
181    property_get(str, buf, "0");
182    return 0 != strcmp(buf, "0");
183}
184
185void Context::displayDebugStats() {
186    char buffer[128];
187    sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
188    float oldR, oldG, oldB, oldA;
189    mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
190    uint32_t bufferLen = strlen(buffer);
191
192    ObjectBaseRef<Font> lastFont(getFont());
193    setFont(NULL);
194    float shadowCol = 0.1f;
195    mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
196    mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);
197
198    mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
199    mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);
200
201    setFont(lastFont.get());
202    mStateFont.setFontColor(oldR, oldG, oldB, oldA);
203}
204
205void * Context::threadProc(void *vrsc) {
206    Context *rsc = static_cast<Context *>(vrsc);
207#ifndef ANDROID_RS_SERIALIZE
208    rsc->mNativeThreadId = gettid();
209    setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
210    rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
211#endif //ANDROID_RS_SERIALIZE
212    rsc->props.mLogTimes = getProp("debug.rs.profile");
213    rsc->props.mLogScripts = getProp("debug.rs.script");
214    rsc->props.mLogObjects = getProp("debug.rs.object");
215    rsc->props.mLogShaders = getProp("debug.rs.shader");
216    rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes");
217    rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms");
218    rsc->props.mLogVisual = getProp("debug.rs.visual");
219
220    if (!rsdHalInit(rsc, 0, 0)) {
221        rsc->setError(RS_ERROR_FATAL_DRIVER, "Failed initializing GL");
222        LOGE("Hal init failed");
223        return NULL;
224    }
225    rsc->mHal.funcs.setPriority(rsc, rsc->mThreadPriority);
226
227    if (rsc->mIsGraphicsContext) {
228        if (!rsc->initGLThread()) {
229            rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
230            return NULL;
231        }
232
233        rsc->mStateRaster.init(rsc);
234        rsc->setProgramRaster(NULL);
235        rsc->mStateVertex.init(rsc);
236        rsc->setProgramVertex(NULL);
237        rsc->mStateFragment.init(rsc);
238        rsc->setProgramFragment(NULL);
239        rsc->mStateFragmentStore.init(rsc);
240        rsc->setProgramStore(NULL);
241        rsc->mStateFont.init(rsc);
242        rsc->setFont(NULL);
243        rsc->mFBOCache.init(rsc);
244    }
245
246    rsc->mRunning = true;
247    bool mDraw = true;
248    bool doWait = true;
249
250    uint64_t targetTime = rsc->getTime();
251    while (!rsc->mExit) {
252        uint64_t waitTime = 0;
253        uint64_t now = rsc->getTime();
254        if (now < targetTime) {
255            waitTime = targetTime - now;
256        } else {
257            doWait = false;
258        }
259
260        mDraw |= rsc->mIO.playCoreCommands(rsc, doWait, waitTime);
261        mDraw &= (rsc->mRootScript.get() != NULL);
262        mDraw &= rsc->mHasSurface;
263
264        if (mDraw && rsc->mIsGraphicsContext) {
265            uint64_t delay = rsc->runRootScript() * 1000000;
266            targetTime = rsc->getTime() + delay;
267            doWait = delay != 0;
268
269            if (rsc->props.mLogVisual) {
270                rsc->displayDebugStats();
271            }
272
273            mDraw = !rsc->mPaused;
274            rsc->timerSet(RS_TIMER_CLEAR_SWAP);
275            rsc->mHal.funcs.swap(rsc);
276            rsc->timerFrame();
277            rsc->timerSet(RS_TIMER_INTERNAL);
278            rsc->timerPrint();
279            rsc->timerReset();
280        }
281    }
282
283    LOGV("%p, RS Thread exiting", rsc);
284
285    if (rsc->mIsGraphicsContext) {
286        pthread_mutex_lock(&gInitMutex);
287        rsc->deinitEGL();
288        pthread_mutex_unlock(&gInitMutex);
289    }
290
291    LOGV("%p, RS Thread exited", rsc);
292    return NULL;
293}
294
295void Context::destroyWorkerThreadResources() {
296    //LOGV("destroyWorkerThreadResources 1");
297    ObjectBase::zeroAllUserRef(this);
298    if (mIsGraphicsContext) {
299         mRaster.clear();
300         mFragment.clear();
301         mVertex.clear();
302         mFragmentStore.clear();
303         mFont.clear();
304         mRootScript.clear();
305         mStateRaster.deinit(this);
306         mStateVertex.deinit(this);
307         mStateFragment.deinit(this);
308         mStateFragmentStore.deinit(this);
309         mStateFont.deinit(this);
310         mFBOCache.deinit(this);
311    }
312    //LOGV("destroyWorkerThreadResources 2");
313    mExit = true;
314}
315
316void Context::setPriority(int32_t p) {
317    // Note: If we put this in the proper "background" policy
318    // the wallpapers can become completly unresponsive at times.
319    // This is probably not what we want for something the user is actively
320    // looking at.
321    mThreadPriority = p;
322#if 0
323    SchedPolicy pol = SP_FOREGROUND;
324    if (p > 0) {
325        pol = SP_BACKGROUND;
326    }
327    if (!set_sched_policy(mNativeThreadId, pol)) {
328        // success; reset the priority as well
329    }
330#else
331    setpriority(PRIO_PROCESS, mNativeThreadId, p);
332#endif
333}
334
335Context::Context() {
336    mDev = NULL;
337    mRunning = false;
338    mExit = false;
339    mPaused = false;
340    mObjHead = NULL;
341    mError = RS_ERROR_NONE;
342    mTargetSdkVersion = 14;
343    mDPI = 96;
344    mIsContextLite = false;
345}
346
347Context * Context::createContext(Device *dev, const RsSurfaceConfig *sc) {
348    Context * rsc = new Context();
349
350    if (!rsc->initContext(dev, sc)) {
351        delete rsc;
352        return NULL;
353    }
354    return rsc;
355}
356
357Context * Context::createContextLite() {
358    Context * rsc = new Context();
359    rsc->mIsContextLite = true;
360    return rsc;
361}
362
363bool Context::initContext(Device *dev, const RsSurfaceConfig *sc) {
364    pthread_mutex_lock(&gInitMutex);
365
366    mIO.init();
367
368    dev->addContext(this);
369    mDev = dev;
370    if (sc) {
371        mUserSurfaceConfig = *sc;
372    } else {
373        memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
374    }
375
376    mIsGraphicsContext = sc != NULL;
377
378    int status;
379    pthread_attr_t threadAttr;
380
381    pthread_mutex_unlock(&gInitMutex);
382
383    // Global init done at this point.
384
385    status = pthread_attr_init(&threadAttr);
386    if (status) {
387        LOGE("Failed to init thread attribute.");
388        return false;
389    }
390
391    mHasSurface = false;
392
393    timerInit();
394    timerSet(RS_TIMER_INTERNAL);
395
396    status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
397    if (status) {
398        LOGE("Failed to start rs context thread.");
399        return false;
400    }
401    while (!mRunning && (mError == RS_ERROR_NONE)) {
402        usleep(100);
403    }
404
405    if (mError != RS_ERROR_NONE) {
406        LOGE("Errors during thread init");
407        return false;
408    }
409
410    pthread_attr_destroy(&threadAttr);
411    return true;
412}
413
414Context::~Context() {
415    LOGV("Context::~Context");
416
417    if (!mIsContextLite) {
418        mIO.coreFlush();
419        rsAssert(mExit);
420        mExit = true;
421        mPaused = false;
422        void *res;
423
424        mIO.shutdown();
425        int status = pthread_join(mThreadId, &res);
426
427        if (mHal.funcs.shutdownDriver) {
428            mHal.funcs.shutdownDriver(this);
429        }
430
431        // Global structure cleanup.
432        pthread_mutex_lock(&gInitMutex);
433        if (mDev) {
434            mDev->removeContext(this);
435            mDev = NULL;
436        }
437        pthread_mutex_unlock(&gInitMutex);
438    }
439    LOGV("Context::~Context done");
440}
441
442void Context::setSurface(uint32_t w, uint32_t h, RsNativeWindow sur) {
443    rsAssert(mIsGraphicsContext);
444    mHal.funcs.setSurface(this, w, h, sur);
445
446    mHasSurface = sur != NULL;
447    mWidth = w;
448    mHeight = h;
449
450    if (mWidth && mHeight) {
451        mStateVertex.updateSize(this);
452        mFBOCache.updateSize();
453    }
454}
455
456void Context::pause() {
457    rsAssert(mIsGraphicsContext);
458    mPaused = true;
459}
460
461void Context::resume() {
462    rsAssert(mIsGraphicsContext);
463    mPaused = false;
464}
465
466void Context::setRootScript(Script *s) {
467    rsAssert(mIsGraphicsContext);
468    mRootScript.set(s);
469}
470
471void Context::setProgramStore(ProgramStore *pfs) {
472    rsAssert(mIsGraphicsContext);
473    if (pfs == NULL) {
474        mFragmentStore.set(mStateFragmentStore.mDefault);
475    } else {
476        mFragmentStore.set(pfs);
477    }
478}
479
480void Context::setProgramFragment(ProgramFragment *pf) {
481    rsAssert(mIsGraphicsContext);
482    if (pf == NULL) {
483        mFragment.set(mStateFragment.mDefault);
484    } else {
485        mFragment.set(pf);
486    }
487}
488
489void Context::setProgramRaster(ProgramRaster *pr) {
490    rsAssert(mIsGraphicsContext);
491    if (pr == NULL) {
492        mRaster.set(mStateRaster.mDefault);
493    } else {
494        mRaster.set(pr);
495    }
496}
497
498void Context::setProgramVertex(ProgramVertex *pv) {
499    rsAssert(mIsGraphicsContext);
500    if (pv == NULL) {
501        mVertex.set(mStateVertex.mDefault);
502    } else {
503        mVertex.set(pv);
504    }
505}
506
507void Context::setFont(Font *f) {
508    rsAssert(mIsGraphicsContext);
509    if (f == NULL) {
510        mFont.set(mStateFont.mDefault);
511    } else {
512        mFont.set(f);
513    }
514}
515
516void Context::assignName(ObjectBase *obj, const char *name, uint32_t len) {
517    rsAssert(!obj->getName());
518    obj->setName(name, len);
519    mNames.add(obj);
520}
521
522void Context::removeName(ObjectBase *obj) {
523    for (size_t ct=0; ct < mNames.size(); ct++) {
524        if (obj == mNames[ct]) {
525            mNames.removeAt(ct);
526            return;
527        }
528    }
529}
530
531RsMessageToClientType Context::peekMessageToClient(size_t *receiveLen, uint32_t *subID) {
532    return (RsMessageToClientType)mIO.getClientHeader(receiveLen, subID);
533}
534
535RsMessageToClientType Context::getMessageToClient(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen) {
536    return (RsMessageToClientType)mIO.getClientPayload(data, receiveLen, subID, bufferLen);
537}
538
539bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
540                                  uint32_t subID, size_t len, bool waitForSpace) const {
541
542    return mIO.sendToClient(cmdID, subID, data, len, waitForSpace);
543}
544
545void Context::initToClient() {
546    while (!mRunning) {
547        usleep(100);
548    }
549}
550
551void Context::deinitToClient() {
552    mIO.clientShutdown();
553}
554
555void Context::setError(RsError e, const char *msg) const {
556    mError = e;
557    sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
558}
559
560
561void Context::dumpDebug() const {
562    LOGE("RS Context debug %p", this);
563    LOGE("RS Context debug");
564
565    LOGE(" RS width %i, height %i", mWidth, mHeight);
566    LOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
567    LOGE(" RS pThreadID %li, nativeThreadID %i", (long int)mThreadId, mNativeThreadId);
568}
569
570///////////////////////////////////////////////////////////////////////////////////////////
571//
572
573namespace android {
574namespace renderscript {
575
576void rsi_ContextFinish(Context *rsc) {
577}
578
579void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
580    Script *s = static_cast<Script *>(vs);
581    rsc->setRootScript(s);
582}
583
584void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
585    Sampler *s = static_cast<Sampler *>(vs);
586
587    if (slot > RS_MAX_SAMPLER_SLOT) {
588        LOGE("Invalid sampler slot");
589        return;
590    }
591
592    s->bindToContext(&rsc->mStateSampler, slot);
593}
594
595void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
596    ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
597    rsc->setProgramStore(pfs);
598}
599
600void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
601    ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
602    rsc->setProgramFragment(pf);
603}
604
605void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
606    ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
607    rsc->setProgramRaster(pr);
608}
609
610void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
611    ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
612    rsc->setProgramVertex(pv);
613}
614
615void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
616    Font *font = static_cast<Font *>(vfont);
617    rsc->setFont(font);
618}
619
620void rsi_AssignName(Context *rsc, RsObjectBase obj, const char *name, size_t name_length) {
621    ObjectBase *ob = static_cast<ObjectBase *>(obj);
622    rsc->assignName(ob, name, name_length);
623}
624
625void rsi_ObjDestroy(Context *rsc, void *optr) {
626    ObjectBase *ob = static_cast<ObjectBase *>(optr);
627    rsc->removeName(ob);
628    ob->decUserRef();
629}
630
631void rsi_ContextPause(Context *rsc) {
632    rsc->pause();
633}
634
635void rsi_ContextResume(Context *rsc) {
636    rsc->resume();
637}
638
639void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
640    rsc->setSurface(w, h, sur);
641}
642
643void rsi_ContextSetPriority(Context *rsc, int32_t p) {
644    rsc->setPriority(p);
645}
646
647void rsi_ContextDump(Context *rsc, int32_t bits) {
648    ObjectBase::dumpAll(rsc);
649}
650
651void rsi_ContextDestroyWorker(Context *rsc) {
652    rsc->destroyWorkerThreadResources();
653}
654
655void rsi_ContextDestroy(Context *rsc) {
656    LOGV("rsContextDestroy %p", rsc);
657    rsContextDestroyWorker(rsc);
658    delete rsc;
659    LOGV("rsContextDestroy 2 %p", rsc);
660}
661
662
663RsMessageToClientType rsi_ContextPeekMessage(Context *rsc,
664                                           size_t * receiveLen, size_t receiveLen_length,
665                                           uint32_t * subID, size_t subID_length) {
666    return rsc->peekMessageToClient(receiveLen, subID);
667}
668
669RsMessageToClientType rsi_ContextGetMessage(Context *rsc, void * data, size_t data_length,
670                                          size_t * receiveLen, size_t receiveLen_length,
671                                          uint32_t * subID, size_t subID_length) {
672    rsAssert(subID_length == sizeof(uint32_t));
673    rsAssert(receiveLen_length == sizeof(size_t));
674    return rsc->getMessageToClient(data, receiveLen, subID, data_length);
675}
676
677void rsi_ContextInitToClient(Context *rsc) {
678    rsc->initToClient();
679}
680
681void rsi_ContextDeinitToClient(Context *rsc) {
682    rsc->deinitToClient();
683}
684
685}
686}
687
688RsContext rsContextCreate(RsDevice vdev, uint32_t version,
689                          uint32_t sdkVersion) {
690    LOGV("rsContextCreate %p", vdev);
691    Device * dev = static_cast<Device *>(vdev);
692    Context *rsc = Context::createContext(dev, NULL);
693    if (rsc) {
694        rsc->setTargetSdkVersion(sdkVersion);
695    }
696    return rsc;
697}
698
699RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
700                            uint32_t sdkVersion, RsSurfaceConfig sc,
701                            uint32_t dpi) {
702    LOGV("rsContextCreateGL %p", vdev);
703    Device * dev = static_cast<Device *>(vdev);
704    Context *rsc = Context::createContext(dev, &sc);
705    if (rsc) {
706        rsc->setTargetSdkVersion(sdkVersion);
707        rsc->setDPI(dpi);
708    }
709    LOGV("rsContextCreateGL ret %p ", rsc);
710    return rsc;
711}
712
713// Only to be called at a3d load time, before object is visible to user
714// not thread safe
715void rsaGetName(RsContext con, void * obj, const char **name) {
716    ObjectBase *ob = static_cast<ObjectBase *>(obj);
717    (*name) = ob->getName();
718}
719