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      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 "rs.h"
     18 #include "rsDevice.h"
     19 #include "rsContext.h"
     20 #include "rsThreadIO.h"
     21 
     22 #ifndef RS_COMPATIBILITY_LIB
     23 #include "rsMesh.h"
     24 #include <ui/FramebufferNativeWindow.h>
     25 #include <gui/DisplayEventReceiver.h>
     26 #endif
     27 
     28 #include <sys/types.h>
     29 #include <sys/resource.h>
     30 #include <sched.h>
     31 
     32 #include <sys/syscall.h>
     33 #include <string.h>
     34 #include <dlfcn.h>
     35 #include <unistd.h>
     36 
     37 #if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB) && \
     38         defined(HAVE_ANDROID_OS)
     39 #include <cutils/properties.h>
     40 #endif
     41 
     42 #ifdef RS_COMPATIBILITY_LIB
     43 #include "rsCompatibilityLib.h"
     44 #endif
     45 
     46 #ifdef RS_SERVER
     47 // Android exposes gettid(), standard Linux does not
     48 static pid_t gettid() {
     49     return syscall(SYS_gettid);
     50 }
     51 #endif
     52 
     53 using namespace android;
     54 using namespace android::renderscript;
     55 
     56 pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
     57 pthread_mutex_t Context::gMessageMutex = PTHREAD_MUTEX_INITIALIZER;
     58 pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;
     59 
     60 bool Context::initGLThread() {
     61     pthread_mutex_lock(&gInitMutex);
     62 
     63     if (!mHal.funcs.initGraphics(this)) {
     64         pthread_mutex_unlock(&gInitMutex);
     65         ALOGE("%p initGraphics failed", this);
     66         return false;
     67     }
     68 
     69     pthread_mutex_unlock(&gInitMutex);
     70     return true;
     71 }
     72 
     73 void Context::deinitEGL() {
     74 #ifndef RS_COMPATIBILITY_LIB
     75     mHal.funcs.shutdownGraphics(this);
     76 #endif
     77 }
     78 
     79 Context::PushState::PushState(Context *con) {
     80     mRsc = con;
     81 #ifndef RS_COMPATIBILITY_LIB
     82     if (con->mIsGraphicsContext) {
     83         mFragment.set(con->getProgramFragment());
     84         mVertex.set(con->getProgramVertex());
     85         mStore.set(con->getProgramStore());
     86         mRaster.set(con->getProgramRaster());
     87         mFont.set(con->getFont());
     88     }
     89 #endif
     90 }
     91 
     92 Context::PushState::~PushState() {
     93 #ifndef RS_COMPATIBILITY_LIB
     94     if (mRsc->mIsGraphicsContext) {
     95         mRsc->setProgramFragment(mFragment.get());
     96         mRsc->setProgramVertex(mVertex.get());
     97         mRsc->setProgramStore(mStore.get());
     98         mRsc->setProgramRaster(mRaster.get());
     99         mRsc->setFont(mFont.get());
    100     }
    101 #endif
    102 }
    103 
    104 
    105 uint32_t Context::runScript(Script *s) {
    106     PushState ps(this);
    107 
    108     uint32_t ret = s->run(this);
    109     return ret;
    110 }
    111 
    112 uint32_t Context::runRootScript() {
    113     timerSet(RS_TIMER_SCRIPT);
    114 #ifndef RS_COMPATIBILITY_LIB
    115     mStateFragmentStore.mLast.clear();
    116 #endif
    117     watchdog.inRoot = true;
    118     uint32_t ret = runScript(mRootScript.get());
    119     watchdog.inRoot = false;
    120 
    121     return ret;
    122 }
    123 
    124 uint64_t Context::getTime() const {
    125 #ifndef ANDROID_RS_SERIALIZE
    126     struct timespec t;
    127     clock_gettime(CLOCK_MONOTONIC, &t);
    128     return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
    129 #else
    130     return 0;
    131 #endif //ANDROID_RS_SERIALIZE
    132 }
    133 
    134 void Context::timerReset() {
    135     for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
    136         mTimers[ct] = 0;
    137     }
    138 }
    139 
    140 void Context::timerInit() {
    141     mTimeLast = getTime();
    142     mTimeFrame = mTimeLast;
    143     mTimeLastFrame = mTimeLast;
    144     mTimerActive = RS_TIMER_INTERNAL;
    145     mAverageFPSFrameCount = 0;
    146     mAverageFPSStartTime = mTimeLast;
    147     mAverageFPS = 0;
    148     timerReset();
    149 }
    150 
    151 void Context::timerFrame() {
    152     mTimeLastFrame = mTimeFrame;
    153     mTimeFrame = getTime();
    154     // Update average fps
    155     const uint64_t averageFramerateInterval = 1000 * 1000000;
    156     mAverageFPSFrameCount ++;
    157     uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
    158     if (inverval >= averageFramerateInterval) {
    159         inverval = inverval / 1000000;
    160         mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
    161         mAverageFPSFrameCount = 0;
    162         mAverageFPSStartTime = mTimeFrame;
    163     }
    164 }
    165 
    166 void Context::timerSet(Timers tm) {
    167     uint64_t last = mTimeLast;
    168     mTimeLast = getTime();
    169     mTimers[mTimerActive] += mTimeLast - last;
    170     mTimerActive = tm;
    171 }
    172 
    173 void Context::timerPrint() {
    174     double total = 0;
    175     for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
    176         total += mTimers[ct];
    177     }
    178     uint64_t frame = mTimeFrame - mTimeLastFrame;
    179     mTimeMSLastFrame = frame / 1000000;
    180     mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
    181     mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;
    182 
    183 
    184     if (props.mLogTimes) {
    185         ALOGV("RS: Frame (%i),   Script %2.1f%% (%i),  Swap %2.1f%% (%i),  Idle %2.1f%% (%lli),  Internal %2.1f%% (%lli), Avg fps: %u",
    186              mTimeMSLastFrame,
    187              100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
    188              100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
    189              100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
    190              100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
    191              mAverageFPS);
    192     }
    193 }
    194 
    195 bool Context::setupCheck() {
    196 #ifndef RS_COMPATIBILITY_LIB
    197     mFragmentStore->setup(this, &mStateFragmentStore);
    198     mFragment->setup(this, &mStateFragment);
    199     mRaster->setup(this, &mStateRaster);
    200     mVertex->setup(this, &mStateVertex);
    201     mFBOCache.setup(this);
    202 #endif
    203     return true;
    204 }
    205 
    206 #ifndef RS_COMPATIBILITY_LIB
    207 void Context::setupProgramStore() {
    208     mFragmentStore->setup(this, &mStateFragmentStore);
    209 }
    210 #endif
    211 
    212 static uint32_t getProp(const char *str) {
    213 #if !defined(RS_SERVER) && defined(HAVE_ANDROID_OS)
    214     char buf[PROPERTY_VALUE_MAX];
    215     property_get(str, buf, "0");
    216     return atoi(buf);
    217 #else
    218     return 0;
    219 #endif
    220 }
    221 
    222 void Context::displayDebugStats() {
    223 #ifndef RS_COMPATIBILITY_LIB
    224     char buffer[128];
    225     sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
    226     float oldR, oldG, oldB, oldA;
    227     mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
    228     uint32_t bufferLen = strlen(buffer);
    229 
    230     ObjectBaseRef<Font> lastFont(getFont());
    231     setFont(NULL);
    232     float shadowCol = 0.1f;
    233     mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
    234     mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);
    235 
    236     mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
    237     mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);
    238 
    239     setFont(lastFont.get());
    240     mStateFont.setFontColor(oldR, oldG, oldB, oldA);
    241 #endif
    242 }
    243 
    244 bool Context::loadRuntime(const char* filename, Context* rsc) {
    245 
    246     // TODO: store the driverSO somewhere so we can dlclose later
    247     void *driverSO = NULL;
    248 
    249     driverSO = dlopen(filename, RTLD_LAZY);
    250     if (driverSO == NULL) {
    251         ALOGE("Failed loading RS driver: %s", dlerror());
    252         return false;
    253     }
    254 
    255     // Need to call dlerror() to clear buffer before using it for dlsym().
    256     (void) dlerror();
    257     typedef bool (*HalSig)(Context*, uint32_t, uint32_t);
    258     HalSig halInit = (HalSig) dlsym(driverSO, "rsdHalInit");
    259 
    260     // If we can't find the C variant, we go looking for the C++ version.
    261     if (halInit == NULL) {
    262         ALOGW("Falling back to find C++ rsdHalInit: %s", dlerror());
    263         halInit = (HalSig) dlsym(driverSO,
    264                 "_Z10rsdHalInitPN7android12renderscript7ContextEjj");
    265     }
    266 
    267     if (halInit == NULL) {
    268         dlclose(driverSO);
    269         ALOGE("Failed to find rsdHalInit: %s", dlerror());
    270         return false;
    271     }
    272 
    273     if (!(*halInit)(rsc, 0, 0)) {
    274         dlclose(driverSO);
    275         ALOGE("Hal init failed");
    276         return false;
    277     }
    278 
    279     //validate HAL struct
    280 
    281 
    282     return true;
    283 }
    284 
    285 extern "C" bool rsdHalInit(RsContext c, uint32_t version_major, uint32_t version_minor);
    286 
    287 void * Context::threadProc(void *vrsc) {
    288     Context *rsc = static_cast<Context *>(vrsc);
    289 #ifndef ANDROID_RS_SERIALIZE
    290     rsc->mNativeThreadId = gettid();
    291 #ifndef RS_COMPATIBILITY_LIB
    292     if (!rsc->isSynchronous()) {
    293         setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
    294     }
    295     rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
    296 #else
    297     if (!rsc->isSynchronous()) {
    298         setpriority(PRIO_PROCESS, rsc->mNativeThreadId, -4);
    299     }
    300     rsc->mThreadPriority = -4;
    301 #endif
    302 #endif //ANDROID_RS_SERIALIZE
    303     rsc->props.mLogTimes = getProp("debug.rs.profile") != 0;
    304     rsc->props.mLogScripts = getProp("debug.rs.script") != 0;
    305     rsc->props.mLogObjects = getProp("debug.rs.object") != 0;
    306     rsc->props.mLogShaders = getProp("debug.rs.shader") != 0;
    307     rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes") != 0;
    308     rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms") != 0;
    309     rsc->props.mLogVisual = getProp("debug.rs.visual") != 0;
    310     rsc->props.mDebugMaxThreads = getProp("debug.rs.max-threads");
    311 
    312     bool loadDefault = true;
    313 
    314     // Provide a mechanism for dropping in a different RS driver.
    315 #ifndef RS_COMPATIBILITY_LIB
    316 #ifdef OVERRIDE_RS_DRIVER
    317 #define XSTR(S) #S
    318 #define STR(S) XSTR(S)
    319 #define OVERRIDE_RS_DRIVER_STRING STR(OVERRIDE_RS_DRIVER)
    320 
    321     if (getProp("debug.rs.default-CPU-driver") != 0) {
    322         ALOGE("Skipping override driver and loading default CPU driver");
    323     } else if (rsc->mForceCpu) {
    324         ALOGV("Application requested CPU execution");
    325     } else if (rsc->getContextType() == RS_CONTEXT_TYPE_DEBUG) {
    326         ALOGV("Application requested debug context");
    327     } else {
    328         if (loadRuntime(OVERRIDE_RS_DRIVER_STRING, rsc)) {
    329             ALOGE("Successfully loaded runtime: %s", OVERRIDE_RS_DRIVER_STRING);
    330             loadDefault = false;
    331         } else {
    332             ALOGE("Failed to load runtime %s, loading default", OVERRIDE_RS_DRIVER_STRING);
    333         }
    334     }
    335 
    336 #undef XSTR
    337 #undef STR
    338 #endif  // OVERRIDE_RS_DRIVER
    339 
    340     if (loadDefault) {
    341         if (!loadRuntime("libRSDriver.so", rsc)) {
    342             ALOGE("Failed to load default runtime!");
    343             rsc->setError(RS_ERROR_FATAL_DRIVER, "Failed loading RS driver");
    344             return NULL;
    345         }
    346     }
    347 #else // RS_COMPATIBILITY_LIB
    348     if (rsdHalInit(rsc, 0, 0) != true) {
    349         return NULL;
    350     }
    351 #endif
    352 
    353 
    354     rsc->mHal.funcs.setPriority(rsc, rsc->mThreadPriority);
    355 
    356 #ifndef RS_COMPATIBILITY_LIB
    357     if (rsc->mIsGraphicsContext) {
    358         if (!rsc->initGLThread()) {
    359             rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
    360             return NULL;
    361         }
    362 
    363         rsc->mStateRaster.init(rsc);
    364         rsc->setProgramRaster(NULL);
    365         rsc->mStateVertex.init(rsc);
    366         rsc->setProgramVertex(NULL);
    367         rsc->mStateFragment.init(rsc);
    368         rsc->setProgramFragment(NULL);
    369         rsc->mStateFragmentStore.init(rsc);
    370         rsc->setProgramStore(NULL);
    371         rsc->mStateFont.init(rsc);
    372         rsc->setFont(NULL);
    373         rsc->mStateSampler.init(rsc);
    374         rsc->mFBOCache.init(rsc);
    375     }
    376 #endif
    377 
    378     rsc->mRunning = true;
    379 
    380     if (rsc->isSynchronous()) {
    381         return NULL;
    382     }
    383 
    384     if (!rsc->mIsGraphicsContext) {
    385         while (!rsc->mExit) {
    386             rsc->mIO.playCoreCommands(rsc, -1);
    387         }
    388 #ifndef RS_COMPATIBILITY_LIB
    389     } else {
    390 #ifndef ANDROID_RS_SERIALIZE
    391         DisplayEventReceiver displayEvent;
    392         DisplayEventReceiver::Event eventBuffer[1];
    393 #endif
    394         int vsyncRate = 0;
    395         int targetRate = 0;
    396 
    397         bool drawOnce = false;
    398         while (!rsc->mExit) {
    399             rsc->timerSet(RS_TIMER_IDLE);
    400 
    401 #ifndef ANDROID_RS_SERIALIZE
    402             if (!rsc->mRootScript.get() || !rsc->mHasSurface || rsc->mPaused) {
    403                 targetRate = 0;
    404             }
    405 
    406             if (vsyncRate != targetRate) {
    407                 displayEvent.setVsyncRate(targetRate);
    408                 vsyncRate = targetRate;
    409             }
    410             if (targetRate) {
    411                 drawOnce |= rsc->mIO.playCoreCommands(rsc, displayEvent.getFd());
    412                 while (displayEvent.getEvents(eventBuffer, 1) != 0) {
    413                     //ALOGE("vs2 time past %lld", (rsc->getTime() - eventBuffer[0].header.timestamp) / 1000000);
    414                 }
    415             } else
    416 #endif
    417             {
    418                 drawOnce |= rsc->mIO.playCoreCommands(rsc, -1);
    419             }
    420 
    421             if ((rsc->mRootScript.get() != NULL) && rsc->mHasSurface &&
    422                 (targetRate || drawOnce) && !rsc->mPaused) {
    423 
    424                 drawOnce = false;
    425                 targetRate = ((rsc->runRootScript() + 15) / 16);
    426 
    427                 if (rsc->props.mLogVisual) {
    428                     rsc->displayDebugStats();
    429                 }
    430 
    431                 rsc->timerSet(RS_TIMER_CLEAR_SWAP);
    432                 rsc->mHal.funcs.swap(rsc);
    433                 rsc->timerFrame();
    434                 rsc->timerSet(RS_TIMER_INTERNAL);
    435                 rsc->timerPrint();
    436                 rsc->timerReset();
    437             }
    438         }
    439 #endif
    440     }
    441 
    442     //ALOGV("%p RS Thread exiting", rsc);
    443 
    444 #ifndef RS_COMPATIBILITY_LIB
    445     if (rsc->mIsGraphicsContext) {
    446         pthread_mutex_lock(&gInitMutex);
    447         rsc->deinitEGL();
    448         pthread_mutex_unlock(&gInitMutex);
    449     }
    450 #endif
    451 
    452     //ALOGV("%p RS Thread exited", rsc);
    453     return NULL;
    454 }
    455 
    456 void Context::destroyWorkerThreadResources() {
    457     //ALOGV("destroyWorkerThreadResources 1");
    458     ObjectBase::zeroAllUserRef(this);
    459 #ifndef RS_COMPATIBILITY_LIB
    460     if (mIsGraphicsContext) {
    461          mRaster.clear();
    462          mFragment.clear();
    463          mVertex.clear();
    464          mFragmentStore.clear();
    465          mFont.clear();
    466          mRootScript.clear();
    467          mStateRaster.deinit(this);
    468          mStateVertex.deinit(this);
    469          mStateFragment.deinit(this);
    470          mStateFragmentStore.deinit(this);
    471          mStateFont.deinit(this);
    472          mStateSampler.deinit(this);
    473          mFBOCache.deinit(this);
    474     }
    475 #endif
    476     ObjectBase::freeAllChildren(this);
    477     mExit = true;
    478     //ALOGV("destroyWorkerThreadResources 2");
    479 }
    480 
    481 void Context::printWatchdogInfo(void *ctx) {
    482     Context *rsc = (Context *)ctx;
    483     if (rsc->watchdog.command && rsc->watchdog.file) {
    484         ALOGE("RS watchdog timeout: %i  %s  line %i %s", rsc->watchdog.inRoot,
    485              rsc->watchdog.command, rsc->watchdog.line, rsc->watchdog.file);
    486     } else {
    487         ALOGE("RS watchdog timeout: %i", rsc->watchdog.inRoot);
    488     }
    489 }
    490 
    491 
    492 void Context::setPriority(int32_t p) {
    493     // Note: If we put this in the proper "background" policy
    494     // the wallpapers can become completly unresponsive at times.
    495     // This is probably not what we want for something the user is actively
    496     // looking at.
    497     mThreadPriority = p;
    498     setpriority(PRIO_PROCESS, mNativeThreadId, p);
    499     mHal.funcs.setPriority(this, mThreadPriority);
    500 }
    501 
    502 Context::Context() {
    503     mDev = NULL;
    504     mRunning = false;
    505     mExit = false;
    506     mPaused = false;
    507     mObjHead = NULL;
    508     mError = RS_ERROR_NONE;
    509     mTargetSdkVersion = 14;
    510     mDPI = 96;
    511     mIsContextLite = false;
    512     memset(&watchdog, 0, sizeof(watchdog));
    513     mForceCpu = false;
    514     mContextType = RS_CONTEXT_TYPE_NORMAL;
    515     mSynchronous = false;
    516 }
    517 
    518 Context * Context::createContext(Device *dev, const RsSurfaceConfig *sc,
    519                                  RsContextType ct, uint32_t flags) {
    520     Context * rsc = new Context();
    521 
    522     if (flags & RS_CONTEXT_LOW_LATENCY) {
    523         rsc->mForceCpu = true;
    524     }
    525     if (flags & RS_CONTEXT_SYNCHRONOUS) {
    526         rsc->mSynchronous = true;
    527     }
    528     rsc->mContextType = ct;
    529 
    530     if (!rsc->initContext(dev, sc)) {
    531         delete rsc;
    532         return NULL;
    533     }
    534     return rsc;
    535 }
    536 
    537 Context * Context::createContextLite() {
    538     Context * rsc = new Context();
    539     rsc->mIsContextLite = true;
    540     return rsc;
    541 }
    542 
    543 bool Context::initContext(Device *dev, const RsSurfaceConfig *sc) {
    544     pthread_mutex_lock(&gInitMutex);
    545 
    546     mIO.init();
    547     mIO.setTimeoutCallback(printWatchdogInfo, this, 2e9);
    548 
    549     dev->addContext(this);
    550     mDev = dev;
    551     if (sc) {
    552         mUserSurfaceConfig = *sc;
    553     } else {
    554         memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
    555     }
    556 
    557     mIsGraphicsContext = sc != NULL;
    558 
    559     int status;
    560     pthread_attr_t threadAttr;
    561 
    562     pthread_mutex_unlock(&gInitMutex);
    563 
    564     // Global init done at this point.
    565 
    566     status = pthread_attr_init(&threadAttr);
    567     if (status) {
    568         ALOGE("Failed to init thread attribute.");
    569         return false;
    570     }
    571 
    572     mHasSurface = false;
    573 
    574     timerInit();
    575     timerSet(RS_TIMER_INTERNAL);
    576     if (mSynchronous) {
    577         threadProc(this);
    578     } else {
    579         status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
    580         if (status) {
    581             ALOGE("Failed to start rs context thread.");
    582             return false;
    583         }
    584         while (!mRunning && (mError == RS_ERROR_NONE)) {
    585             usleep(100);
    586         }
    587 
    588         if (mError != RS_ERROR_NONE) {
    589             ALOGE("Errors during thread init");
    590             return false;
    591         }
    592 
    593         pthread_attr_destroy(&threadAttr);
    594     }
    595     return true;
    596 }
    597 
    598 Context::~Context() {
    599     //ALOGV("%p Context::~Context", this);
    600 
    601     if (!mIsContextLite) {
    602         mPaused = false;
    603         void *res;
    604 
    605         mIO.shutdown();
    606         int status = pthread_join(mThreadId, &res);
    607         rsAssert(mExit);
    608 
    609         if (mHal.funcs.shutdownDriver) {
    610             mHal.funcs.shutdownDriver(this);
    611         }
    612 
    613         // Global structure cleanup.
    614         pthread_mutex_lock(&gInitMutex);
    615         if (mDev) {
    616             mDev->removeContext(this);
    617             mDev = NULL;
    618         }
    619         pthread_mutex_unlock(&gInitMutex);
    620     }
    621     //ALOGV("%p Context::~Context done", this);
    622 }
    623 
    624 #ifndef RS_COMPATIBILITY_LIB
    625 void Context::setSurface(uint32_t w, uint32_t h, RsNativeWindow sur) {
    626     rsAssert(mIsGraphicsContext);
    627     mHal.funcs.setSurface(this, w, h, sur);
    628 
    629     mHasSurface = sur != NULL;
    630     mWidth = w;
    631     mHeight = h;
    632 
    633     if (mWidth && mHeight) {
    634         mStateVertex.updateSize(this);
    635         mFBOCache.updateSize();
    636     }
    637 }
    638 
    639 uint32_t Context::getCurrentSurfaceWidth() const {
    640     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
    641         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
    642             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimX();
    643         }
    644     }
    645     if (mFBOCache.mHal.state.depthTarget != NULL) {
    646         return mFBOCache.mHal.state.depthTarget->getType()->getDimX();
    647     }
    648     return mWidth;
    649 }
    650 
    651 uint32_t Context::getCurrentSurfaceHeight() const {
    652     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
    653         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
    654             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimY();
    655         }
    656     }
    657     if (mFBOCache.mHal.state.depthTarget != NULL) {
    658         return mFBOCache.mHal.state.depthTarget->getType()->getDimY();
    659     }
    660     return mHeight;
    661 }
    662 
    663 void Context::pause() {
    664     rsAssert(mIsGraphicsContext);
    665     mPaused = true;
    666 }
    667 
    668 void Context::resume() {
    669     rsAssert(mIsGraphicsContext);
    670     mPaused = false;
    671 }
    672 
    673 void Context::setRootScript(Script *s) {
    674     rsAssert(mIsGraphicsContext);
    675     mRootScript.set(s);
    676 }
    677 
    678 void Context::setProgramStore(ProgramStore *pfs) {
    679     rsAssert(mIsGraphicsContext);
    680     if (pfs == NULL) {
    681         mFragmentStore.set(mStateFragmentStore.mDefault);
    682     } else {
    683         mFragmentStore.set(pfs);
    684     }
    685 }
    686 
    687 void Context::setProgramFragment(ProgramFragment *pf) {
    688     rsAssert(mIsGraphicsContext);
    689     if (pf == NULL) {
    690         mFragment.set(mStateFragment.mDefault);
    691     } else {
    692         mFragment.set(pf);
    693     }
    694 }
    695 
    696 void Context::setProgramRaster(ProgramRaster *pr) {
    697     rsAssert(mIsGraphicsContext);
    698     if (pr == NULL) {
    699         mRaster.set(mStateRaster.mDefault);
    700     } else {
    701         mRaster.set(pr);
    702     }
    703 }
    704 
    705 void Context::setProgramVertex(ProgramVertex *pv) {
    706     rsAssert(mIsGraphicsContext);
    707     if (pv == NULL) {
    708         mVertex.set(mStateVertex.mDefault);
    709     } else {
    710         mVertex.set(pv);
    711     }
    712 }
    713 
    714 void Context::setFont(Font *f) {
    715     rsAssert(mIsGraphicsContext);
    716     if (f == NULL) {
    717         mFont.set(mStateFont.mDefault);
    718     } else {
    719         mFont.set(f);
    720     }
    721 }
    722 #endif
    723 
    724 void Context::assignName(ObjectBase *obj, const char *name, uint32_t len) {
    725     rsAssert(!obj->getName());
    726     obj->setName(name, len);
    727     mNames.add(obj);
    728 }
    729 
    730 void Context::removeName(ObjectBase *obj) {
    731     for (size_t ct=0; ct < mNames.size(); ct++) {
    732         if (obj == mNames[ct]) {
    733             mNames.removeAt(ct);
    734             return;
    735         }
    736     }
    737 }
    738 
    739 RsMessageToClientType Context::peekMessageToClient(size_t *receiveLen, uint32_t *subID) {
    740     return (RsMessageToClientType)mIO.getClientHeader(receiveLen, subID);
    741 }
    742 
    743 RsMessageToClientType Context::getMessageToClient(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen) {
    744     return (RsMessageToClientType)mIO.getClientPayload(data, receiveLen, subID, bufferLen);
    745 }
    746 
    747 bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
    748                                   uint32_t subID, size_t len, bool waitForSpace) const {
    749 
    750     pthread_mutex_lock(&gMessageMutex);
    751     bool ret = mIO.sendToClient(cmdID, subID, data, len, waitForSpace);
    752     pthread_mutex_unlock(&gMessageMutex);
    753     return ret;
    754 }
    755 
    756 void Context::initToClient() {
    757     while (!mRunning) {
    758         usleep(100);
    759     }
    760 }
    761 
    762 void Context::deinitToClient() {
    763     mIO.clientShutdown();
    764 }
    765 
    766 void Context::setError(RsError e, const char *msg) const {
    767     mError = e;
    768     sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
    769 }
    770 
    771 
    772 void Context::dumpDebug() const {
    773     ALOGE("RS Context debug %p", this);
    774     ALOGE("RS Context debug");
    775 
    776     ALOGE(" RS width %i, height %i", mWidth, mHeight);
    777     ALOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
    778     ALOGE(" RS pThreadID %li, nativeThreadID %i", (long int)mThreadId, mNativeThreadId);
    779 }
    780 
    781 ///////////////////////////////////////////////////////////////////////////////////////////
    782 //
    783 
    784 namespace android {
    785 namespace renderscript {
    786 
    787 void rsi_ContextFinish(Context *rsc) {
    788 }
    789 
    790 void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
    791 #ifndef RS_COMPATIBILITY_LIB
    792     Script *s = static_cast<Script *>(vs);
    793     rsc->setRootScript(s);
    794 #endif
    795 }
    796 
    797 void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
    798     Sampler *s = static_cast<Sampler *>(vs);
    799 
    800     if (slot > RS_MAX_SAMPLER_SLOT) {
    801         ALOGE("Invalid sampler slot");
    802         return;
    803     }
    804 
    805     s->bindToContext(&rsc->mStateSampler, slot);
    806 }
    807 
    808 #ifndef RS_COMPATIBILITY_LIB
    809 void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
    810     ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
    811     rsc->setProgramStore(pfs);
    812 }
    813 
    814 void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
    815     ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
    816     rsc->setProgramFragment(pf);
    817 }
    818 
    819 void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
    820     ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
    821     rsc->setProgramRaster(pr);
    822 }
    823 
    824 void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
    825     ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
    826     rsc->setProgramVertex(pv);
    827 }
    828 
    829 void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
    830     Font *font = static_cast<Font *>(vfont);
    831     rsc->setFont(font);
    832 }
    833 #endif
    834 
    835 void rsi_AssignName(Context *rsc, RsObjectBase obj, const char *name, size_t name_length) {
    836     ObjectBase *ob = static_cast<ObjectBase *>(obj);
    837     rsc->assignName(ob, name, name_length);
    838 }
    839 
    840 void rsi_ObjDestroy(Context *rsc, void *optr) {
    841     ObjectBase *ob = static_cast<ObjectBase *>(optr);
    842     rsc->removeName(ob);
    843     ob->decUserRef();
    844 }
    845 
    846 #ifndef RS_COMPATIBILITY_LIB
    847 void rsi_ContextPause(Context *rsc) {
    848     rsc->pause();
    849 }
    850 
    851 void rsi_ContextResume(Context *rsc) {
    852     rsc->resume();
    853 }
    854 
    855 void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
    856     rsc->setSurface(w, h, sur);
    857 }
    858 #endif
    859 
    860 void rsi_ContextSetPriority(Context *rsc, int32_t p) {
    861     rsc->setPriority(p);
    862 }
    863 
    864 void rsi_ContextDump(Context *rsc, int32_t bits) {
    865     ObjectBase::dumpAll(rsc);
    866 }
    867 
    868 void rsi_ContextDestroyWorker(Context *rsc) {
    869     rsc->destroyWorkerThreadResources();
    870 }
    871 
    872 void rsi_ContextDestroy(Context *rsc) {
    873     //ALOGV("%p rsContextDestroy", rsc);
    874     rsContextDestroyWorker(rsc);
    875     delete rsc;
    876     //ALOGV("%p rsContextDestroy done", rsc);
    877 }
    878 
    879 RsMessageToClientType rsi_ContextPeekMessage(Context *rsc,
    880                                            size_t * receiveLen, size_t receiveLen_length,
    881                                            uint32_t * subID, size_t subID_length) {
    882     return rsc->peekMessageToClient(receiveLen, subID);
    883 }
    884 
    885 RsMessageToClientType rsi_ContextGetMessage(Context *rsc, void * data, size_t data_length,
    886                                           size_t * receiveLen, size_t receiveLen_length,
    887                                           uint32_t * subID, size_t subID_length) {
    888     rsAssert(subID_length == sizeof(uint32_t));
    889     rsAssert(receiveLen_length == sizeof(size_t));
    890     return rsc->getMessageToClient(data, receiveLen, subID, data_length);
    891 }
    892 
    893 void rsi_ContextInitToClient(Context *rsc) {
    894     rsc->initToClient();
    895 }
    896 
    897 void rsi_ContextDeinitToClient(Context *rsc) {
    898     rsc->deinitToClient();
    899 }
    900 
    901 void rsi_ContextSendMessage(Context *rsc, uint32_t id, const uint8_t *data, size_t len) {
    902     rsc->sendMessageToClient(data, RS_MESSAGE_TO_CLIENT_USER, id, len, true);
    903 }
    904 
    905 }
    906 }
    907 
    908 extern "C" RsContext rsContextCreate(RsDevice vdev, uint32_t version, uint32_t sdkVersion,
    909                                      RsContextType ct, uint32_t flags) {
    910     //ALOGV("rsContextCreate dev=%p", vdev);
    911     Device * dev = static_cast<Device *>(vdev);
    912     Context *rsc = Context::createContext(dev, NULL, ct, flags);
    913     if (rsc) {
    914         rsc->setTargetSdkVersion(sdkVersion);
    915     }
    916     return rsc;
    917 }
    918 
    919 #ifndef RS_COMPATIBILITY_LIB
    920 RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
    921                             uint32_t sdkVersion, RsSurfaceConfig sc,
    922                             uint32_t dpi) {
    923     //ALOGV("rsContextCreateGL dev=%p", vdev);
    924     Device * dev = static_cast<Device *>(vdev);
    925     Context *rsc = Context::createContext(dev, &sc);
    926     if (rsc) {
    927         rsc->setTargetSdkVersion(sdkVersion);
    928         rsc->setDPI(dpi);
    929     }
    930     //ALOGV("%p rsContextCreateGL ret", rsc);
    931     return rsc;
    932 }
    933 #endif
    934 
    935 // Only to be called at a3d load time, before object is visible to user
    936 // not thread safe
    937 void rsaGetName(RsContext con, void * obj, const char **name) {
    938     ObjectBase *ob = static_cast<ObjectBase *>(obj);
    939     (*name) = ob->getName();
    940 }
    941