libs/rs/rsContext.cpp - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include "rsDevice.h"
 #include "rsContext.h"
 #include "rsThreadIO.h"
 #include <ui/FramebufferNativeWindow.h>
 #include <gui/DisplayEventReceiver.h>

 #include <sys/types.h>
 #include <sys/resource.h>
 #include <sched.h>

 #include <cutils/properties.h>

 #include <sys/syscall.h>
 #include <string.h>

 using namespace android;
 using namespace android::renderscript;

 pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
 pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;

 bool Context::initGLThread() {
     pthread_mutex_lock(&gInitMutex);

     if (!mHal.funcs.initGraphics(this)) {
         pthread_mutex_unlock(&gInitMutex);
         ALOGE("%p initGraphics failed", this);
         return false;
     }

     pthread_mutex_unlock(&gInitMutex);
     return true;
 }

 void Context::deinitEGL() {
     mHal.funcs.shutdownGraphics(this);
 }

 Context::PushState::PushState(Context *con) {
     mRsc = con;
     if (con->mIsGraphicsContext) {
         mFragment.set(con->getProgramFragment());
         mVertex.set(con->getProgramVertex());
         mStore.set(con->getProgramStore());
         mRaster.set(con->getProgramRaster());
         mFont.set(con->getFont());
     }
 }

 Context::PushState::~PushState() {
     if (mRsc->mIsGraphicsContext) {
         mRsc->setProgramFragment(mFragment.get());
         mRsc->setProgramVertex(mVertex.get());
         mRsc->setProgramStore(mStore.get());
         mRsc->setProgramRaster(mRaster.get());
         mRsc->setFont(mFont.get());
     }
 }


 uint32_t Context::runScript(Script *s) {
     PushState(this);

     uint32_t ret = s->run(this);
     return ret;
 }

 uint32_t Context::runRootScript() {
     timerSet(RS_TIMER_SCRIPT);
     mStateFragmentStore.mLast.clear();
     watchdog.inRoot = true;
     uint32_t ret = runScript(mRootScript.get());
     watchdog.inRoot = false;

     return ret;
 }

 uint64_t Context::getTime() const {
 #ifndef ANDROID_RS_SERIALIZE
     struct timespec t;
     clock_gettime(CLOCK_MONOTONIC, &t);
     return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
 #else
     return 0;
 #endif //ANDROID_RS_SERIALIZE
 }

 void Context::timerReset() {
     for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
         mTimers[ct] = 0;
     }
 }

 void Context::timerInit() {
     mTimeLast = getTime();
     mTimeFrame = mTimeLast;
     mTimeLastFrame = mTimeLast;
     mTimerActive = RS_TIMER_INTERNAL;
     mAverageFPSFrameCount = 0;
     mAverageFPSStartTime = mTimeLast;
     mAverageFPS = 0;
     timerReset();
 }

 void Context::timerFrame() {
     mTimeLastFrame = mTimeFrame;
     mTimeFrame = getTime();
     // Update average fps
     const uint64_t averageFramerateInterval = 1000 * 1000000;
     mAverageFPSFrameCount ++;
     uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
     if (inverval >= averageFramerateInterval) {
         inverval = inverval / 1000000;
         mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
         mAverageFPSFrameCount = 0;
         mAverageFPSStartTime = mTimeFrame;
     }
 }

 void Context::timerSet(Timers tm) {
     uint64_t last = mTimeLast;
     mTimeLast = getTime();
     mTimers[mTimerActive] += mTimeLast - last;
     mTimerActive = tm;
 }

 void Context::timerPrint() {
     double total = 0;
     for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
         total += mTimers[ct];
     }
     uint64_t frame = mTimeFrame - mTimeLastFrame;
     mTimeMSLastFrame = frame / 1000000;
     mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
     mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;


     if (props.mLogTimes) {
         ALOGV("RS: Frame (%i),   Script %2.1f%% (%i),  Swap %2.1f%% (%i),  Idle %2.1f%% (%lli),  Internal %2.1f%% (%lli), Avg fps: %u",
              mTimeMSLastFrame,
              100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
              100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
              100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
              100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
              mAverageFPS);
     }
 }

 bool Context::setupCheck() {

     mFragmentStore->setup(this, &mStateFragmentStore);
     mFragment->setup(this, &mStateFragment);
     mRaster->setup(this, &mStateRaster);
     mVertex->setup(this, &mStateVertex);
     mFBOCache.setup(this);
     return true;
 }

 void Context::setupProgramStore() {
     mFragmentStore->setup(this, &mStateFragmentStore);
 }

 static bool getProp(const char *str) {
     char buf[PROPERTY_VALUE_MAX];
     property_get(str, buf, "0");
     return 0 != strcmp(buf, "0");
 }

 void Context::displayDebugStats() {
     char buffer[128];
     sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
     float oldR, oldG, oldB, oldA;
     mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
     uint32_t bufferLen = strlen(buffer);

     ObjectBaseRef<Font> lastFont(getFont());
     setFont(NULL);
     float shadowCol = 0.1f;
     mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
     mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);

     mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
     mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);

     setFont(lastFont.get());
     mStateFont.setFontColor(oldR, oldG, oldB, oldA);
 }

 void * Context::threadProc(void *vrsc) {
     Context *rsc = static_cast<Context *>(vrsc);
 #ifndef ANDROID_RS_SERIALIZE
     rsc->mNativeThreadId = gettid();
     setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
     rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
 #endif //ANDROID_RS_SERIALIZE
     rsc->props.mLogTimes = getProp("debug.rs.profile");
     rsc->props.mLogScripts = getProp("debug.rs.script");
     rsc->props.mLogObjects = getProp("debug.rs.object");
     rsc->props.mLogShaders = getProp("debug.rs.shader");
     rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes");
     rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms");
     rsc->props.mLogVisual = getProp("debug.rs.visual");

     if (!rsdHalInit(rsc, 0, 0)) {
         rsc->setError(RS_ERROR_FATAL_DRIVER, "Failed initializing GL");
         ALOGE("Hal init failed");
         return NULL;
     }
     rsc->mHal.funcs.setPriority(rsc, rsc->mThreadPriority);

     if (rsc->mIsGraphicsContext) {
         if (!rsc->initGLThread()) {
             rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
             return NULL;
         }

         rsc->mStateRaster.init(rsc);
         rsc->setProgramRaster(NULL);
         rsc->mStateVertex.init(rsc);
         rsc->setProgramVertex(NULL);
         rsc->mStateFragment.init(rsc);
         rsc->setProgramFragment(NULL);
         rsc->mStateFragmentStore.init(rsc);
         rsc->setProgramStore(NULL);
         rsc->mStateFont.init(rsc);
         rsc->setFont(NULL);
         rsc->mStateSampler.init(rsc);
         rsc->mFBOCache.init(rsc);
     }

     rsc->mRunning = true;
     if (!rsc->mIsGraphicsContext) {
         while (!rsc->mExit) {
             rsc->mIO.playCoreCommands(rsc, -1);
         }
     } else {
 #ifndef ANDROID_RS_SERIALIZE
         DisplayEventReceiver displayEvent;
         DisplayEventReceiver::Event eventBuffer[1];
 #endif
         int vsyncRate = 0;
         int targetRate = 0;

         bool drawOnce = false;
         while (!rsc->mExit) {
             rsc->timerSet(RS_TIMER_IDLE);

 #ifndef ANDROID_RS_SERIALIZE
             if (!rsc->mRootScript.get() || !rsc->mHasSurface || rsc->mPaused) {
                 targetRate = 0;
             }

             if (vsyncRate != targetRate) {
                 displayEvent.setVsyncRate(targetRate);
                 vsyncRate = targetRate;
             }
             if (targetRate) {
                 drawOnce |= rsc->mIO.playCoreCommands(rsc, displayEvent.getFd());
                 while (displayEvent.getEvents(eventBuffer, 1) != 0) {
                     //ALOGE("vs2 time past %lld", (rsc->getTime() - eventBuffer[0].header.timestamp) / 1000000);
                 }
             } else
 #endif
             {
                 drawOnce |= rsc->mIO.playCoreCommands(rsc, -1);
             }

             if ((rsc->mRootScript.get() != NULL) && rsc->mHasSurface &&
                 (targetRate || drawOnce) && !rsc->mPaused) {

                 drawOnce = false;
                 targetRate = ((rsc->runRootScript() + 15) / 16);

                 if (rsc->props.mLogVisual) {
                     rsc->displayDebugStats();
                 }

                 rsc->timerSet(RS_TIMER_CLEAR_SWAP);
                 rsc->mHal.funcs.swap(rsc);
                 rsc->timerFrame();
                 rsc->timerSet(RS_TIMER_INTERNAL);
                 rsc->timerPrint();
                 rsc->timerReset();
             }
         }
     }

     ALOGV("%p RS Thread exiting", rsc);

     if (rsc->mIsGraphicsContext) {
         pthread_mutex_lock(&gInitMutex);
         rsc->deinitEGL();
         pthread_mutex_unlock(&gInitMutex);
     }

     ALOGV("%p RS Thread exited", rsc);
     return NULL;
 }

 void Context::destroyWorkerThreadResources() {
     //ALOGV("destroyWorkerThreadResources 1");
     ObjectBase::zeroAllUserRef(this);
     if (mIsGraphicsContext) {
          mRaster.clear();
          mFragment.clear();
          mVertex.clear();
          mFragmentStore.clear();
          mFont.clear();
          mRootScript.clear();
          mStateRaster.deinit(this);
          mStateVertex.deinit(this);
          mStateFragment.deinit(this);
          mStateFragmentStore.deinit(this);
          mStateFont.deinit(this);
          mStateSampler.deinit(this);
          mFBOCache.deinit(this);
     }
     ObjectBase::freeAllChildren(this);
     mExit = true;
     //ALOGV("destroyWorkerThreadResources 2");
 }

 void Context::printWatchdogInfo(void *ctx) {
     Context *rsc = (Context *)ctx;
     if (rsc->watchdog.command && rsc->watchdog.file) {
         ALOGE("RS watchdog timeout: %i  %s  line %i %s", rsc->watchdog.inRoot,
              rsc->watchdog.command, rsc->watchdog.line, rsc->watchdog.file);
     } else {
         ALOGE("RS watchdog timeout: %i", rsc->watchdog.inRoot);
     }
 }


 void Context::setPriority(int32_t p) {
     // Note: If we put this in the proper "background" policy
     // the wallpapers can become completly unresponsive at times.
     // This is probably not what we want for something the user is actively
     // looking at.
     mThreadPriority = p;
     setpriority(PRIO_PROCESS, mNativeThreadId, p);
     mHal.funcs.setPriority(this, mThreadPriority);
 }

 Context::Context() {
     mDev = NULL;
     mRunning = false;
     mExit = false;
     mPaused = false;
     mObjHead = NULL;
     mError = RS_ERROR_NONE;
     mTargetSdkVersion = 14;
     mDPI = 96;
     mIsContextLite = false;
     memset(&watchdog, 0, sizeof(watchdog));
 }

 Context * Context::createContext(Device *dev, const RsSurfaceConfig *sc) {
     Context * rsc = new Context();

     if (!rsc->initContext(dev, sc)) {
         delete rsc;
         return NULL;
     }
     return rsc;
 }

 Context * Context::createContextLite() {
     Context * rsc = new Context();
     rsc->mIsContextLite = true;
     return rsc;
 }

 bool Context::initContext(Device *dev, const RsSurfaceConfig *sc) {
     pthread_mutex_lock(&gInitMutex);

     mIO.init();
     mIO.setTimeoutCallback(printWatchdogInfo, this, 2e9);

     dev->addContext(this);
     mDev = dev;
     if (sc) {
         mUserSurfaceConfig = *sc;
     } else {
         memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
     }

     mIsGraphicsContext = sc != NULL;

     int status;
     pthread_attr_t threadAttr;

     pthread_mutex_unlock(&gInitMutex);

     // Global init done at this point.

     status = pthread_attr_init(&threadAttr);
     if (status) {
         ALOGE("Failed to init thread attribute.");
         return false;
     }

     mHasSurface = false;

     timerInit();
     timerSet(RS_TIMER_INTERNAL);

     status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
     if (status) {
         ALOGE("Failed to start rs context thread.");
         return false;
     }
     while (!mRunning && (mError == RS_ERROR_NONE)) {
         usleep(100);
     }

     if (mError != RS_ERROR_NONE) {
         ALOGE("Errors during thread init");
         return false;
     }

     pthread_attr_destroy(&threadAttr);
     return true;
 }

 Context::~Context() {
     ALOGV("%p Context::~Context", this);

     if (!mIsContextLite) {
         mPaused = false;
         void *res;

         mIO.shutdown();
         int status = pthread_join(mThreadId, &res);
         rsAssert(mExit);

         if (mHal.funcs.shutdownDriver) {
             mHal.funcs.shutdownDriver(this);
         }

         // Global structure cleanup.
         pthread_mutex_lock(&gInitMutex);
         if (mDev) {
             mDev->removeContext(this);
             mDev = NULL;
         }
         pthread_mutex_unlock(&gInitMutex);
     }
     ALOGV("%p Context::~Context done", this);
 }

 void Context::setSurface(uint32_t w, uint32_t h, RsNativeWindow sur) {
     rsAssert(mIsGraphicsContext);
     mHal.funcs.setSurface(this, w, h, sur);

     mHasSurface = sur != NULL;
     mWidth = w;
     mHeight = h;

     if (mWidth && mHeight) {
         mStateVertex.updateSize(this);
         mFBOCache.updateSize();
     }
 }

 uint32_t Context::getCurrentSurfaceWidth() const {
     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimX();
         }
     }
     if (mFBOCache.mHal.state.depthTarget != NULL) {
         return mFBOCache.mHal.state.depthTarget->getType()->getDimX();
     }
     return mWidth;
 }

 uint32_t Context::getCurrentSurfaceHeight() const {
     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimY();
         }
     }
     if (mFBOCache.mHal.state.depthTarget != NULL) {
         return mFBOCache.mHal.state.depthTarget->getType()->getDimY();
     }
     return mHeight;
 }

 void Context::pause() {
     rsAssert(mIsGraphicsContext);
     mPaused = true;
 }

 void Context::resume() {
     rsAssert(mIsGraphicsContext);
     mPaused = false;
 }

 void Context::setRootScript(Script *s) {
     rsAssert(mIsGraphicsContext);
     mRootScript.set(s);
 }

 void Context::setProgramStore(ProgramStore *pfs) {
     rsAssert(mIsGraphicsContext);
     if (pfs == NULL) {
         mFragmentStore.set(mStateFragmentStore.mDefault);
     } else {
         mFragmentStore.set(pfs);
     }
 }

 void Context::setProgramFragment(ProgramFragment *pf) {
     rsAssert(mIsGraphicsContext);
     if (pf == NULL) {
         mFragment.set(mStateFragment.mDefault);
     } else {
         mFragment.set(pf);
     }
 }

 void Context::setProgramRaster(ProgramRaster *pr) {
     rsAssert(mIsGraphicsContext);
     if (pr == NULL) {
         mRaster.set(mStateRaster.mDefault);
     } else {
         mRaster.set(pr);
     }
 }

 void Context::setProgramVertex(ProgramVertex *pv) {
     rsAssert(mIsGraphicsContext);
     if (pv == NULL) {
         mVertex.set(mStateVertex.mDefault);
     } else {
         mVertex.set(pv);
     }
 }

 void Context::setFont(Font *f) {
     rsAssert(mIsGraphicsContext);
     if (f == NULL) {
         mFont.set(mStateFont.mDefault);
     } else {
         mFont.set(f);
     }
 }

 void Context::assignName(ObjectBase *obj, const char *name, uint32_t len) {
     rsAssert(!obj->getName());
     obj->setName(name, len);
     mNames.add(obj);
 }

 void Context::removeName(ObjectBase *obj) {
     for (size_t ct=0; ct < mNames.size(); ct++) {
         if (obj == mNames[ct]) {
             mNames.removeAt(ct);
             return;
         }
     }
 }

 RsMessageToClientType Context::peekMessageToClient(size_t *receiveLen, uint32_t *subID) {
     return (RsMessageToClientType)mIO.getClientHeader(receiveLen, subID);
 }

 RsMessageToClientType Context::getMessageToClient(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen) {
     return (RsMessageToClientType)mIO.getClientPayload(data, receiveLen, subID, bufferLen);
 }

 bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
                                   uint32_t subID, size_t len, bool waitForSpace) const {

     return mIO.sendToClient(cmdID, subID, data, len, waitForSpace);
 }

 void Context::initToClient() {
     while (!mRunning) {
         usleep(100);
     }
 }

 void Context::deinitToClient() {
     mIO.clientShutdown();
 }

 void Context::setError(RsError e, const char *msg) const {
     mError = e;
     sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
 }


 void Context::dumpDebug() const {
     ALOGE("RS Context debug %p", this);
     ALOGE("RS Context debug");

     ALOGE(" RS width %i, height %i", mWidth, mHeight);
     ALOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
     ALOGE(" RS pThreadID %li, nativeThreadID %i", (long int)mThreadId, mNativeThreadId);
 }

 ///////////////////////////////////////////////////////////////////////////////////////////
 //

 namespace android {
 namespace renderscript {

 void rsi_ContextFinish(Context *rsc) {
 }

 void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
     Script *s = static_cast<Script *>(vs);
     rsc->setRootScript(s);
 }

 void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
     Sampler *s = static_cast<Sampler *>(vs);

     if (slot > RS_MAX_SAMPLER_SLOT) {
         ALOGE("Invalid sampler slot");
         return;
     }

     s->bindToContext(&rsc->mStateSampler, slot);
 }

 void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
     ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
     rsc->setProgramStore(pfs);
 }

 void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
     ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
     rsc->setProgramFragment(pf);
 }

 void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
     ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
     rsc->setProgramRaster(pr);
 }

 void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
     ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
     rsc->setProgramVertex(pv);
 }

 void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
     Font *font = static_cast<Font *>(vfont);
     rsc->setFont(font);
 }

 void rsi_AssignName(Context *rsc, RsObjectBase obj, const char *name, size_t name_length) {
     ObjectBase *ob = static_cast<ObjectBase *>(obj);
     rsc->assignName(ob, name, name_length);
 }

 void rsi_ObjDestroy(Context *rsc, void *optr) {
     ObjectBase *ob = static_cast<ObjectBase *>(optr);
     rsc->removeName(ob);
     ob->decUserRef();
 }

 void rsi_ContextPause(Context *rsc) {
     rsc->pause();
 }

 void rsi_ContextResume(Context *rsc) {
     rsc->resume();
 }

 void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
     rsc->setSurface(w, h, sur);
 }

 void rsi_ContextSetPriority(Context *rsc, int32_t p) {
     rsc->setPriority(p);
 }

 void rsi_ContextDump(Context *rsc, int32_t bits) {
     ObjectBase::dumpAll(rsc);
 }

 void rsi_ContextDestroyWorker(Context *rsc) {
     rsc->destroyWorkerThreadResources();
 }

 void rsi_ContextDestroy(Context *rsc) {
     ALOGV("%p rsContextDestroy", rsc);
     rsContextDestroyWorker(rsc);
     delete rsc;
     ALOGV("%p rsContextDestroy done", rsc);
 }


 RsMessageToClientType rsi_ContextPeekMessage(Context *rsc,
                                            size_t * receiveLen, size_t receiveLen_length,
                                            uint32_t * subID, size_t subID_length) {
     return rsc->peekMessageToClient(receiveLen, subID);
 }

 RsMessageToClientType rsi_ContextGetMessage(Context *rsc, void * data, size_t data_length,
                                           size_t * receiveLen, size_t receiveLen_length,
                                           uint32_t * subID, size_t subID_length) {
     rsAssert(subID_length == sizeof(uint32_t));
     rsAssert(receiveLen_length == sizeof(size_t));
     return rsc->getMessageToClient(data, receiveLen, subID, data_length);
 }

 void rsi_ContextInitToClient(Context *rsc) {
     rsc->initToClient();
 }

 void rsi_ContextDeinitToClient(Context *rsc) {
     rsc->deinitToClient();
 }

 }
 }

 RsContext rsContextCreate(RsDevice vdev, uint32_t version,
                           uint32_t sdkVersion) {
     ALOGV("rsContextCreate dev=%p", vdev);
     Device * dev = static_cast<Device *>(vdev);
     Context *rsc = Context::createContext(dev, NULL);
     if (rsc) {
         rsc->setTargetSdkVersion(sdkVersion);
     }
     return rsc;
 }

 RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
                             uint32_t sdkVersion, RsSurfaceConfig sc,
                             uint32_t dpi) {
     ALOGV("rsContextCreateGL dev=%p", vdev);
     Device * dev = static_cast<Device *>(vdev);
     Context *rsc = Context::createContext(dev, &sc);
     if (rsc) {
         rsc->setTargetSdkVersion(sdkVersion);
         rsc->setDPI(dpi);
     }
     ALOGV("%p rsContextCreateGL ret", rsc);
     return rsc;
 }

 // Only to be called at a3d load time, before object is visible to user
 // not thread safe
 void rsaGetName(RsContext con, void * obj, const char **name) {
     ObjectBase *ob = static_cast<ObjectBase *>(obj);
     (*name) = ob->getName();
 }
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include "rsDevice.h"
	#include "rsContext.h"
	#include "rsThreadIO.h"
	#include <ui/FramebufferNativeWindow.h>
	#include <gui/DisplayEventReceiver.h>

	#include <sys/types.h>
	#include <sys/resource.h>
	#include <sched.h>

	#include <cutils/properties.h>

	#include <sys/syscall.h>
	#include <string.h>

	using namespace android;
	using namespace android::renderscript;

	pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
	pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;

	bool Context::initGLThread() {
	pthread_mutex_lock(&gInitMutex);

	if (!mHal.funcs.initGraphics(this)) {
	pthread_mutex_unlock(&gInitMutex);
	ALOGE("%p initGraphics failed", this);
	return false;
	}

	pthread_mutex_unlock(&gInitMutex);
	return true;
	}

	void Context::deinitEGL() {
	mHal.funcs.shutdownGraphics(this);
	}

	Context::PushState::PushState(Context *con) {
	mRsc = con;
	if (con->mIsGraphicsContext) {
	mFragment.set(con->getProgramFragment());
	mVertex.set(con->getProgramVertex());
	mStore.set(con->getProgramStore());
	mRaster.set(con->getProgramRaster());
	mFont.set(con->getFont());
	}
	}

	Context::PushState::~PushState() {
	if (mRsc->mIsGraphicsContext) {
	mRsc->setProgramFragment(mFragment.get());
	mRsc->setProgramVertex(mVertex.get());
	mRsc->setProgramStore(mStore.get());
	mRsc->setProgramRaster(mRaster.get());
	mRsc->setFont(mFont.get());
	}
	}


	uint32_t Context::runScript(Script *s) {
	PushState(this);

	uint32_t ret = s->run(this);
	return ret;
	}

	uint32_t Context::runRootScript() {
	timerSet(RS_TIMER_SCRIPT);
	mStateFragmentStore.mLast.clear();
	watchdog.inRoot = true;
	uint32_t ret = runScript(mRootScript.get());
	watchdog.inRoot = false;

	return ret;
	}

	uint64_t Context::getTime() const {
	#ifndef ANDROID_RS_SERIALIZE
	struct timespec t;
	clock_gettime(CLOCK_MONOTONIC, &t);
	return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
	#else
	return 0;
	#endif //ANDROID_RS_SERIALIZE
	}

	void Context::timerReset() {
	for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
	mTimers[ct] = 0;
	}
	}

	void Context::timerInit() {
	mTimeLast = getTime();
	mTimeFrame = mTimeLast;
	mTimeLastFrame = mTimeLast;
	mTimerActive = RS_TIMER_INTERNAL;
	mAverageFPSFrameCount = 0;
	mAverageFPSStartTime = mTimeLast;
	mAverageFPS = 0;
	timerReset();
	}

	void Context::timerFrame() {
	mTimeLastFrame = mTimeFrame;
	mTimeFrame = getTime();
	// Update average fps
	const uint64_t averageFramerateInterval = 1000 * 1000000;
	mAverageFPSFrameCount ++;
	uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
	if (inverval >= averageFramerateInterval) {
	inverval = inverval / 1000000;
	mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
	mAverageFPSFrameCount = 0;
	mAverageFPSStartTime = mTimeFrame;
	}
	}

	void Context::timerSet(Timers tm) {
	uint64_t last = mTimeLast;
	mTimeLast = getTime();
	mTimers[mTimerActive] += mTimeLast - last;
	mTimerActive = tm;
	}

	void Context::timerPrint() {
	double total = 0;
	for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
	total += mTimers[ct];
	}
	uint64_t frame = mTimeFrame - mTimeLastFrame;
	mTimeMSLastFrame = frame / 1000000;
	mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
	mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;


	if (props.mLogTimes) {
	ALOGV("RS: Frame (%i), Script %2.1f%% (%i), Swap %2.1f%% (%i), Idle %2.1f%% (%lli), Internal %2.1f%% (%lli), Avg fps: %u",
	mTimeMSLastFrame,
	100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
	100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
	100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
	100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
	mAverageFPS);
	}
	}

	bool Context::setupCheck() {

	mFragmentStore->setup(this, &mStateFragmentStore);
	mFragment->setup(this, &mStateFragment);
	mRaster->setup(this, &mStateRaster);
	mVertex->setup(this, &mStateVertex);
	mFBOCache.setup(this);
	return true;
	}

	void Context::setupProgramStore() {
	mFragmentStore->setup(this, &mStateFragmentStore);
	}

	static bool getProp(const char *str) {
	char buf[PROPERTY_VALUE_MAX];
	property_get(str, buf, "0");
	return 0 != strcmp(buf, "0");
	}

	void Context::displayDebugStats() {
	char buffer[128];
	sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
	float oldR, oldG, oldB, oldA;
	mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
	uint32_t bufferLen = strlen(buffer);

	ObjectBaseRef<Font> lastFont(getFont());
	setFont(NULL);
	float shadowCol = 0.1f;
	mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
	mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);

	mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
	mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);

	setFont(lastFont.get());
	mStateFont.setFontColor(oldR, oldG, oldB, oldA);
	}

	void * Context::threadProc(void *vrsc) {
	Context rsc = static_cast<Context >(vrsc);
	#ifndef ANDROID_RS_SERIALIZE
	rsc->mNativeThreadId = gettid();
	setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
	rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
	#endif //ANDROID_RS_SERIALIZE
	rsc->props.mLogTimes = getProp("debug.rs.profile");
	rsc->props.mLogScripts = getProp("debug.rs.script");
	rsc->props.mLogObjects = getProp("debug.rs.object");
	rsc->props.mLogShaders = getProp("debug.rs.shader");
	rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes");
	rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms");
	rsc->props.mLogVisual = getProp("debug.rs.visual");

	if (!rsdHalInit(rsc, 0, 0)) {
	rsc->setError(RS_ERROR_FATAL_DRIVER, "Failed initializing GL");
	ALOGE("Hal init failed");
	return NULL;
	}
	rsc->mHal.funcs.setPriority(rsc, rsc->mThreadPriority);

	if (rsc->mIsGraphicsContext) {
	if (!rsc->initGLThread()) {
	rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
	return NULL;
	}

	rsc->mStateRaster.init(rsc);
	rsc->setProgramRaster(NULL);
	rsc->mStateVertex.init(rsc);
	rsc->setProgramVertex(NULL);
	rsc->mStateFragment.init(rsc);
	rsc->setProgramFragment(NULL);
	rsc->mStateFragmentStore.init(rsc);
	rsc->setProgramStore(NULL);
	rsc->mStateFont.init(rsc);
	rsc->setFont(NULL);
	rsc->mStateSampler.init(rsc);
	rsc->mFBOCache.init(rsc);
	}

	rsc->mRunning = true;
	if (!rsc->mIsGraphicsContext) {
	while (!rsc->mExit) {
	rsc->mIO.playCoreCommands(rsc, -1);
	}
	} else {
	#ifndef ANDROID_RS_SERIALIZE
	DisplayEventReceiver displayEvent;
	DisplayEventReceiver::Event eventBuffer[1];
	#endif
	int vsyncRate = 0;
	int targetRate = 0;

	bool drawOnce = false;
	while (!rsc->mExit) {
	rsc->timerSet(RS_TIMER_IDLE);

	#ifndef ANDROID_RS_SERIALIZE
	if (!rsc->mRootScript.get() \|\| !rsc->mHasSurface \|\| rsc->mPaused) {
	targetRate = 0;
	}

	if (vsyncRate != targetRate) {
	displayEvent.setVsyncRate(targetRate);
	vsyncRate = targetRate;
	}
	if (targetRate) {
	drawOnce \|= rsc->mIO.playCoreCommands(rsc, displayEvent.getFd());
	while (displayEvent.getEvents(eventBuffer, 1) != 0) {
	//ALOGE("vs2 time past %lld", (rsc->getTime() - eventBuffer[0].header.timestamp) / 1000000);
	}
	} else
	#endif
	{
	drawOnce \|= rsc->mIO.playCoreCommands(rsc, -1);
	}

	if ((rsc->mRootScript.get() != NULL) && rsc->mHasSurface &&
	(targetRate \|\| drawOnce) && !rsc->mPaused) {

	drawOnce = false;
	targetRate = ((rsc->runRootScript() + 15) / 16);

	if (rsc->props.mLogVisual) {
	rsc->displayDebugStats();
	}

	rsc->timerSet(RS_TIMER_CLEAR_SWAP);
	rsc->mHal.funcs.swap(rsc);
	rsc->timerFrame();
	rsc->timerSet(RS_TIMER_INTERNAL);
	rsc->timerPrint();
	rsc->timerReset();
	}
	}
	}

	ALOGV("%p RS Thread exiting", rsc);

	if (rsc->mIsGraphicsContext) {
	pthread_mutex_lock(&gInitMutex);
	rsc->deinitEGL();
	pthread_mutex_unlock(&gInitMutex);
	}

	ALOGV("%p RS Thread exited", rsc);
	return NULL;
	}

	void Context::destroyWorkerThreadResources() {
	//ALOGV("destroyWorkerThreadResources 1");
	ObjectBase::zeroAllUserRef(this);
	if (mIsGraphicsContext) {
	mRaster.clear();
	mFragment.clear();
	mVertex.clear();
	mFragmentStore.clear();
	mFont.clear();
	mRootScript.clear();
	mStateRaster.deinit(this);
	mStateVertex.deinit(this);
	mStateFragment.deinit(this);
	mStateFragmentStore.deinit(this);
	mStateFont.deinit(this);
	mStateSampler.deinit(this);
	mFBOCache.deinit(this);
	}
	ObjectBase::freeAllChildren(this);
	mExit = true;
	//ALOGV("destroyWorkerThreadResources 2");
	}

	void Context::printWatchdogInfo(void *ctx) {
	Context rsc = (Context )ctx;
	if (rsc->watchdog.command && rsc->watchdog.file) {
	ALOGE("RS watchdog timeout: %i %s line %i %s", rsc->watchdog.inRoot,
	rsc->watchdog.command, rsc->watchdog.line, rsc->watchdog.file);
	} else {
	ALOGE("RS watchdog timeout: %i", rsc->watchdog.inRoot);
	}
	}


	void Context::setPriority(int32_t p) {
	// Note: If we put this in the proper "background" policy
	// the wallpapers can become completly unresponsive at times.
	// This is probably not what we want for something the user is actively
	// looking at.
	mThreadPriority = p;
	setpriority(PRIO_PROCESS, mNativeThreadId, p);
	mHal.funcs.setPriority(this, mThreadPriority);
	}

	Context::Context() {
	mDev = NULL;
	mRunning = false;
	mExit = false;
	mPaused = false;
	mObjHead = NULL;
	mError = RS_ERROR_NONE;
	mTargetSdkVersion = 14;
	mDPI = 96;
	mIsContextLite = false;
	memset(&watchdog, 0, sizeof(watchdog));
	}

	Context * Context::createContext(Device dev, const RsSurfaceConfig sc) {
	Context * rsc = new Context();

	if (!rsc->initContext(dev, sc)) {
	delete rsc;
	return NULL;
	}
	return rsc;
	}

	Context * Context::createContextLite() {
	Context * rsc = new Context();
	rsc->mIsContextLite = true;
	return rsc;
	}

	bool Context::initContext(Device dev, const RsSurfaceConfig sc) {
	pthread_mutex_lock(&gInitMutex);

	mIO.init();
	mIO.setTimeoutCallback(printWatchdogInfo, this, 2e9);

	dev->addContext(this);
	mDev = dev;
	if (sc) {
	mUserSurfaceConfig = *sc;
	} else {
	memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
	}

	mIsGraphicsContext = sc != NULL;

	int status;
	pthread_attr_t threadAttr;

	pthread_mutex_unlock(&gInitMutex);

	// Global init done at this point.

	status = pthread_attr_init(&threadAttr);
	if (status) {
	ALOGE("Failed to init thread attribute.");
	return false;
	}

	mHasSurface = false;

	timerInit();
	timerSet(RS_TIMER_INTERNAL);

	status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
	if (status) {
	ALOGE("Failed to start rs context thread.");
	return false;
	}
	while (!mRunning && (mError == RS_ERROR_NONE)) {
	usleep(100);
	}

	if (mError != RS_ERROR_NONE) {
	ALOGE("Errors during thread init");
	return false;
	}

	pthread_attr_destroy(&threadAttr);
	return true;
	}

	Context::~Context() {
	ALOGV("%p Context::~Context", this);

	if (!mIsContextLite) {
	mPaused = false;
	void *res;

	mIO.shutdown();
	int status = pthread_join(mThreadId, &res);
	rsAssert(mExit);

	if (mHal.funcs.shutdownDriver) {
	mHal.funcs.shutdownDriver(this);
	}

	// Global structure cleanup.
	pthread_mutex_lock(&gInitMutex);
	if (mDev) {
	mDev->removeContext(this);
	mDev = NULL;
	}
	pthread_mutex_unlock(&gInitMutex);
	}
	ALOGV("%p Context::~Context done", this);
	}

	void Context::setSurface(uint32_t w, uint32_t h, RsNativeWindow sur) {
	rsAssert(mIsGraphicsContext);
	mHal.funcs.setSurface(this, w, h, sur);

	mHasSurface = sur != NULL;
	mWidth = w;
	mHeight = h;

	if (mWidth && mHeight) {
	mStateVertex.updateSize(this);
	mFBOCache.updateSize();
	}
	}

	uint32_t Context::getCurrentSurfaceWidth() const {
	for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
	if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
	return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimX();
	}
	}
	if (mFBOCache.mHal.state.depthTarget != NULL) {
	return mFBOCache.mHal.state.depthTarget->getType()->getDimX();
	}
	return mWidth;
	}

	uint32_t Context::getCurrentSurfaceHeight() const {
	for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
	if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
	return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimY();
	}
	}
	if (mFBOCache.mHal.state.depthTarget != NULL) {
	return mFBOCache.mHal.state.depthTarget->getType()->getDimY();
	}
	return mHeight;
	}

	void Context::pause() {
	rsAssert(mIsGraphicsContext);
	mPaused = true;
	}

	void Context::resume() {
	rsAssert(mIsGraphicsContext);
	mPaused = false;
	}

	void Context::setRootScript(Script *s) {
	rsAssert(mIsGraphicsContext);
	mRootScript.set(s);
	}

	void Context::setProgramStore(ProgramStore *pfs) {
	rsAssert(mIsGraphicsContext);
	if (pfs == NULL) {
	mFragmentStore.set(mStateFragmentStore.mDefault);
	} else {
	mFragmentStore.set(pfs);
	}
	}

	void Context::setProgramFragment(ProgramFragment *pf) {
	rsAssert(mIsGraphicsContext);
	if (pf == NULL) {
	mFragment.set(mStateFragment.mDefault);
	} else {
	mFragment.set(pf);
	}
	}

	void Context::setProgramRaster(ProgramRaster *pr) {
	rsAssert(mIsGraphicsContext);
	if (pr == NULL) {
	mRaster.set(mStateRaster.mDefault);
	} else {
	mRaster.set(pr);
	}
	}

	void Context::setProgramVertex(ProgramVertex *pv) {
	rsAssert(mIsGraphicsContext);
	if (pv == NULL) {
	mVertex.set(mStateVertex.mDefault);
	} else {
	mVertex.set(pv);
	}
	}

	void Context::setFont(Font *f) {
	rsAssert(mIsGraphicsContext);
	if (f == NULL) {
	mFont.set(mStateFont.mDefault);
	} else {
	mFont.set(f);
	}
	}

	void Context::assignName(ObjectBase obj, const char name, uint32_t len) {
	rsAssert(!obj->getName());
	obj->setName(name, len);
	mNames.add(obj);
	}

	void Context::removeName(ObjectBase *obj) {
	for (size_t ct=0; ct < mNames.size(); ct++) {
	if (obj == mNames[ct]) {
	mNames.removeAt(ct);
	return;
	}
	}
	}

	RsMessageToClientType Context::peekMessageToClient(size_t receiveLen, uint32_t subID) {
	return (RsMessageToClientType)mIO.getClientHeader(receiveLen, subID);
	}

	RsMessageToClientType Context::getMessageToClient(void data, size_t receiveLen, uint32_t *subID, size_t bufferLen) {
	return (RsMessageToClientType)mIO.getClientPayload(data, receiveLen, subID, bufferLen);
	}

	bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
	uint32_t subID, size_t len, bool waitForSpace) const {

	return mIO.sendToClient(cmdID, subID, data, len, waitForSpace);
	}

	void Context::initToClient() {
	while (!mRunning) {
	usleep(100);
	}
	}

	void Context::deinitToClient() {
	mIO.clientShutdown();
	}

	void Context::setError(RsError e, const char *msg) const {
	mError = e;
	sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
	}


	void Context::dumpDebug() const {
	ALOGE("RS Context debug %p", this);
	ALOGE("RS Context debug");

	ALOGE(" RS width %i, height %i", mWidth, mHeight);
	ALOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
	ALOGE(" RS pThreadID %li, nativeThreadID %i", (long int)mThreadId, mNativeThreadId);
	}

	///////////////////////////////////////////////////////////////////////////////////////////
	//

	namespace android {
	namespace renderscript {

	void rsi_ContextFinish(Context *rsc) {
	}

	void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
	Script s = static_cast<Script >(vs);
	rsc->setRootScript(s);
	}

	void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
	Sampler s = static_cast<Sampler >(vs);

	if (slot > RS_MAX_SAMPLER_SLOT) {
	ALOGE("Invalid sampler slot");
	return;
	}

	s->bindToContext(&rsc->mStateSampler, slot);
	}

	void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
	ProgramStore pfs = static_cast<ProgramStore >(vpfs);
	rsc->setProgramStore(pfs);
	}

	void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
	ProgramFragment pf = static_cast<ProgramFragment >(vpf);
	rsc->setProgramFragment(pf);
	}

	void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
	ProgramRaster pr = static_cast<ProgramRaster >(vpr);
	rsc->setProgramRaster(pr);
	}

	void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
	ProgramVertex pv = static_cast<ProgramVertex >(vpv);
	rsc->setProgramVertex(pv);
	}

	void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
	Font font = static_cast<Font >(vfont);
	rsc->setFont(font);
	}

	void rsi_AssignName(Context rsc, RsObjectBase obj, const char name, size_t name_length) {
	ObjectBase ob = static_cast<ObjectBase >(obj);
	rsc->assignName(ob, name, name_length);
	}

	void rsi_ObjDestroy(Context rsc, void optr) {
	ObjectBase ob = static_cast<ObjectBase >(optr);
	rsc->removeName(ob);
	ob->decUserRef();
	}

	void rsi_ContextPause(Context *rsc) {
	rsc->pause();
	}

	void rsi_ContextResume(Context *rsc) {
	rsc->resume();
	}

	void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
	rsc->setSurface(w, h, sur);
	}

	void rsi_ContextSetPriority(Context *rsc, int32_t p) {
	rsc->setPriority(p);
	}

	void rsi_ContextDump(Context *rsc, int32_t bits) {
	ObjectBase::dumpAll(rsc);
	}

	void rsi_ContextDestroyWorker(Context *rsc) {
	rsc->destroyWorkerThreadResources();
	}

	void rsi_ContextDestroy(Context *rsc) {
	ALOGV("%p rsContextDestroy", rsc);
	rsContextDestroyWorker(rsc);
	delete rsc;
	ALOGV("%p rsContextDestroy done", rsc);
	}


	RsMessageToClientType rsi_ContextPeekMessage(Context *rsc,
	size_t * receiveLen, size_t receiveLen_length,
	uint32_t * subID, size_t subID_length) {
	return rsc->peekMessageToClient(receiveLen, subID);
	}

	RsMessageToClientType rsi_ContextGetMessage(Context rsc, void data, size_t data_length,
	size_t * receiveLen, size_t receiveLen_length,
	uint32_t * subID, size_t subID_length) {
	rsAssert(subID_length == sizeof(uint32_t));
	rsAssert(receiveLen_length == sizeof(size_t));
	return rsc->getMessageToClient(data, receiveLen, subID, data_length);
	}

	void rsi_ContextInitToClient(Context *rsc) {
	rsc->initToClient();
	}

	void rsi_ContextDeinitToClient(Context *rsc) {
	rsc->deinitToClient();
	}

	}
	}

	RsContext rsContextCreate(RsDevice vdev, uint32_t version,
	uint32_t sdkVersion) {
	ALOGV("rsContextCreate dev=%p", vdev);
	Device * dev = static_cast<Device *>(vdev);
	Context *rsc = Context::createContext(dev, NULL);
	if (rsc) {
	rsc->setTargetSdkVersion(sdkVersion);
	}
	return rsc;
	}

	RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
	uint32_t sdkVersion, RsSurfaceConfig sc,
	uint32_t dpi) {
	ALOGV("rsContextCreateGL dev=%p", vdev);
	Device * dev = static_cast<Device *>(vdev);
	Context *rsc = Context::createContext(dev, &sc);
	if (rsc) {
	rsc->setTargetSdkVersion(sdkVersion);
	rsc->setDPI(dpi);
	}
	ALOGV("%p rsContextCreateGL ret", rsc);
	return rsc;
	}

	// Only to be called at a3d load time, before object is visible to user
	// not thread safe
	void rsaGetName(RsContext con, void * obj, const char **name) {
	ObjectBase ob = static_cast<ObjectBase >(obj);
	(*name) = ob->getName();
	}