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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 #include "rsgApiStructs.h"
     23 
     24 #ifndef RS_COMPATIBILITY_LIB
     25 #include "rsMesh.h"
     26 #include <ui/FramebufferNativeWindow.h>
     27 #include <gui/DisplayEventReceiver.h>
     28 #endif
     29 
     30 #include <sys/types.h>
     31 #include <sys/resource.h>
     32 #include <sched.h>
     33 
     34 #include <sys/syscall.h>
     35 #include <string.h>
     36 #include <dlfcn.h>
     37 #include <unistd.h>
     38 
     39 #if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB) && \
     40         defined(HAVE_ANDROID_OS)
     41 #include <cutils/properties.h>
     42 #endif
     43 
     44 #ifdef RS_COMPATIBILITY_LIB
     45 #include "rsCompatibilityLib.h"
     46 #endif
     47 
     48 #ifdef RS_SERVER
     49 // Android exposes gettid(), standard Linux does not
     50 static pid_t gettid() {
     51     return syscall(SYS_gettid);
     52 }
     53 #endif
     54 
     55 using namespace android;
     56 using namespace android::renderscript;
     57 
     58 pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
     59 pthread_mutex_t Context::gMessageMutex = PTHREAD_MUTEX_INITIALIZER;
     60 pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;
     61 
     62 bool Context::initGLThread() {
     63     pthread_mutex_lock(&gInitMutex);
     64 
     65     if (!mHal.funcs.initGraphics(this)) {
     66         pthread_mutex_unlock(&gInitMutex);
     67         ALOGE("%p initGraphics failed", this);
     68         return false;
     69     }
     70 
     71     pthread_mutex_unlock(&gInitMutex);
     72     return true;
     73 }
     74 
     75 void Context::deinitEGL() {
     76 #ifndef RS_COMPATIBILITY_LIB
     77     mHal.funcs.shutdownGraphics(this);
     78 #endif
     79 }
     80 
     81 Context::PushState::PushState(Context *con) {
     82     mRsc = con;
     83 #ifndef RS_COMPATIBILITY_LIB
     84     if (con->mIsGraphicsContext) {
     85         mFragment.set(con->getProgramFragment());
     86         mVertex.set(con->getProgramVertex());
     87         mStore.set(con->getProgramStore());
     88         mRaster.set(con->getProgramRaster());
     89         mFont.set(con->getFont());
     90     }
     91 #endif
     92 }
     93 
     94 Context::PushState::~PushState() {
     95 #ifndef RS_COMPATIBILITY_LIB
     96     if (mRsc->mIsGraphicsContext) {
     97         mRsc->setProgramFragment(mFragment.get());
     98         mRsc->setProgramVertex(mVertex.get());
     99         mRsc->setProgramStore(mStore.get());
    100         mRsc->setProgramRaster(mRaster.get());
    101         mRsc->setFont(mFont.get());
    102     }
    103 #endif
    104 }
    105 
    106 
    107 uint32_t Context::runScript(Script *s) {
    108     PushState ps(this);
    109 
    110     uint32_t ret = s->run(this);
    111     return ret;
    112 }
    113 
    114 uint32_t Context::runRootScript() {
    115     timerSet(RS_TIMER_SCRIPT);
    116 #ifndef RS_COMPATIBILITY_LIB
    117     mStateFragmentStore.mLast.clear();
    118 #endif
    119     watchdog.inRoot = true;
    120     uint32_t ret = runScript(mRootScript.get());
    121     watchdog.inRoot = false;
    122 
    123     return ret;
    124 }
    125 
    126 uint64_t Context::getTime() const {
    127 #ifndef ANDROID_RS_SERIALIZE
    128     struct timespec t;
    129     clock_gettime(CLOCK_MONOTONIC, &t);
    130     return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
    131 #else
    132     return 0;
    133 #endif //ANDROID_RS_SERIALIZE
    134 }
    135 
    136 void Context::timerReset() {
    137     for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
    138         mTimers[ct] = 0;
    139     }
    140 }
    141 
    142 void Context::timerInit() {
    143     mTimeLast = getTime();
    144     mTimeFrame = mTimeLast;
    145     mTimeLastFrame = mTimeLast;
    146     mTimerActive = RS_TIMER_INTERNAL;
    147     mAverageFPSFrameCount = 0;
    148     mAverageFPSStartTime = mTimeLast;
    149     mAverageFPS = 0;
    150     timerReset();
    151 }
    152 
    153 void Context::timerFrame() {
    154     mTimeLastFrame = mTimeFrame;
    155     mTimeFrame = getTime();
    156     // Update average fps
    157     const uint64_t averageFramerateInterval = 1000 * 1000000;
    158     mAverageFPSFrameCount ++;
    159     uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
    160     if (inverval >= averageFramerateInterval) {
    161         inverval = inverval / 1000000;
    162         mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
    163         mAverageFPSFrameCount = 0;
    164         mAverageFPSStartTime = mTimeFrame;
    165     }
    166 }
    167 
    168 void Context::timerSet(Timers tm) {
    169     uint64_t last = mTimeLast;
    170     mTimeLast = getTime();
    171     mTimers[mTimerActive] += mTimeLast - last;
    172     mTimerActive = tm;
    173 }
    174 
    175 void Context::timerPrint() {
    176     double total = 0;
    177     for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
    178         total += mTimers[ct];
    179     }
    180     uint64_t frame = mTimeFrame - mTimeLastFrame;
    181     mTimeMSLastFrame = frame / 1000000;
    182     mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
    183     mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;
    184 
    185 
    186     if (props.mLogTimes) {
    187         ALOGV("RS: Frame (%i),   Script %2.1f%% (%i),  Swap %2.1f%% (%i),  Idle %2.1f%% (%lli),  Internal %2.1f%% (%lli), Avg fps: %u",
    188              mTimeMSLastFrame,
    189              100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
    190              100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
    191              100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
    192              100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
    193              mAverageFPS);
    194     }
    195 }
    196 
    197 bool Context::setupCheck() {
    198 #ifndef RS_COMPATIBILITY_LIB
    199     mFragmentStore->setup(this, &mStateFragmentStore);
    200     mFragment->setup(this, &mStateFragment);
    201     mRaster->setup(this, &mStateRaster);
    202     mVertex->setup(this, &mStateVertex);
    203     mFBOCache.setup(this);
    204 #endif
    205     return true;
    206 }
    207 
    208 #ifndef RS_COMPATIBILITY_LIB
    209 void Context::setupProgramStore() {
    210     mFragmentStore->setup(this, &mStateFragmentStore);
    211 }
    212 #endif
    213 
    214 static uint32_t getProp(const char *str) {
    215 #if !defined(RS_SERVER) && defined(HAVE_ANDROID_OS)
    216     char buf[PROPERTY_VALUE_MAX];
    217     property_get(str, buf, "0");
    218     return atoi(buf);
    219 #else
    220     return 0;
    221 #endif
    222 }
    223 
    224 void Context::displayDebugStats() {
    225 #ifndef RS_COMPATIBILITY_LIB
    226     char buffer[128];
    227     sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
    228     float oldR, oldG, oldB, oldA;
    229     mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
    230     uint32_t bufferLen = strlen(buffer);
    231 
    232     ObjectBaseRef<Font> lastFont(getFont());
    233     setFont(NULL);
    234     float shadowCol = 0.1f;
    235     mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
    236     mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);
    237 
    238     mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
    239     mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);
    240 
    241     setFont(lastFont.get());
    242     mStateFont.setFontColor(oldR, oldG, oldB, oldA);
    243 #endif
    244 }
    245 
    246 bool Context::loadRuntime(const char* filename, Context* rsc) {
    247 
    248     // TODO: store the driverSO somewhere so we can dlclose later
    249     void *driverSO = NULL;
    250 
    251     driverSO = dlopen(filename, RTLD_LAZY);
    252     if (driverSO == NULL) {
    253         ALOGE("Failed loading RS driver: %s", dlerror());
    254         return false;
    255     }
    256 
    257     // Need to call dlerror() to clear buffer before using it for dlsym().
    258     (void) dlerror();
    259     typedef bool (*HalSig)(Context*, uint32_t, uint32_t);
    260     HalSig halInit = (HalSig) dlsym(driverSO, "rsdHalInit");
    261 
    262     // If we can't find the C variant, we go looking for the C++ version.
    263     if (halInit == NULL) {
    264         ALOGW("Falling back to find C++ rsdHalInit: %s", dlerror());
    265         halInit = (HalSig) dlsym(driverSO,
    266                 "_Z10rsdHalInitPN7android12renderscript7ContextEjj");
    267     }
    268 
    269     if (halInit == NULL) {
    270         dlclose(driverSO);
    271         ALOGE("Failed to find rsdHalInit: %s", dlerror());
    272         return false;
    273     }
    274 
    275     if (!(*halInit)(rsc, 0, 0)) {
    276         dlclose(driverSO);
    277         ALOGE("Hal init failed");
    278         return false;
    279     }
    280 
    281     //validate HAL struct
    282 
    283 
    284     return true;
    285 }
    286 
    287 extern "C" bool rsdHalInit(RsContext c, uint32_t version_major, uint32_t version_minor);
    288 
    289 void * Context::threadProc(void *vrsc) {
    290     Context *rsc = static_cast<Context *>(vrsc);
    291 #ifndef ANDROID_RS_SERIALIZE
    292     rsc->mNativeThreadId = gettid();
    293 #ifndef RS_COMPATIBILITY_LIB
    294     if (!rsc->isSynchronous()) {
    295         setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
    296     }
    297     rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
    298 #else
    299     if (!rsc->isSynchronous()) {
    300         setpriority(PRIO_PROCESS, rsc->mNativeThreadId, -4);
    301     }
    302     rsc->mThreadPriority = -4;
    303 #endif
    304 #endif //ANDROID_RS_SERIALIZE
    305     rsc->props.mLogTimes = getProp("debug.rs.profile") != 0;
    306     rsc->props.mLogScripts = getProp("debug.rs.script") != 0;
    307     rsc->props.mLogObjects = getProp("debug.rs.object") != 0;
    308     rsc->props.mLogShaders = getProp("debug.rs.shader") != 0;
    309     rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes") != 0;
    310     rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms") != 0;
    311     rsc->props.mLogVisual = getProp("debug.rs.visual") != 0;
    312     rsc->props.mDebugMaxThreads = getProp("debug.rs.max-threads");
    313 
    314     bool loadDefault = true;
    315 
    316     // Provide a mechanism for dropping in a different RS driver.
    317 #ifndef RS_COMPATIBILITY_LIB
    318 #ifdef OVERRIDE_RS_DRIVER
    319 #define XSTR(S) #S
    320 #define STR(S) XSTR(S)
    321 #define OVERRIDE_RS_DRIVER_STRING STR(OVERRIDE_RS_DRIVER)
    322 
    323     if (getProp("debug.rs.default-CPU-driver") != 0) {
    324         ALOGE("Skipping override driver and loading default CPU driver");
    325     } else if (rsc->mForceCpu) {
    326         ALOGV("Application requested CPU execution");
    327     } else if (rsc->getContextType() == RS_CONTEXT_TYPE_DEBUG) {
    328         ALOGV("Application requested debug context");
    329     } else {
    330         if (loadRuntime(OVERRIDE_RS_DRIVER_STRING, rsc)) {
    331             ALOGE("Successfully loaded runtime: %s", OVERRIDE_RS_DRIVER_STRING);
    332             loadDefault = false;
    333         } else {
    334             ALOGE("Failed to load runtime %s, loading default", OVERRIDE_RS_DRIVER_STRING);
    335         }
    336     }
    337 
    338 #undef XSTR
    339 #undef STR
    340 #endif  // OVERRIDE_RS_DRIVER
    341 
    342     if (loadDefault) {
    343         if (!loadRuntime("libRSDriver.so", rsc)) {
    344             ALOGE("Failed to load default runtime!");
    345             rsc->setError(RS_ERROR_FATAL_DRIVER, "Failed loading RS driver");
    346             return NULL;
    347         }
    348     }
    349 #else // RS_COMPATIBILITY_LIB
    350     if (rsdHalInit(rsc, 0, 0) != true) {
    351         return NULL;
    352     }
    353 #endif
    354 
    355 
    356     rsc->mHal.funcs.setPriority(rsc, rsc->mThreadPriority);
    357 
    358 #ifndef RS_COMPATIBILITY_LIB
    359     if (rsc->mIsGraphicsContext) {
    360         if (!rsc->initGLThread()) {
    361             rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
    362             return NULL;
    363         }
    364 
    365         rsc->mStateRaster.init(rsc);
    366         rsc->setProgramRaster(NULL);
    367         rsc->mStateVertex.init(rsc);
    368         rsc->setProgramVertex(NULL);
    369         rsc->mStateFragment.init(rsc);
    370         rsc->setProgramFragment(NULL);
    371         rsc->mStateFragmentStore.init(rsc);
    372         rsc->setProgramStore(NULL);
    373         rsc->mStateFont.init(rsc);
    374         rsc->setFont(NULL);
    375         rsc->mStateSampler.init(rsc);
    376         rsc->mFBOCache.init(rsc);
    377     }
    378 #endif
    379 
    380     rsc->mRunning = true;
    381 
    382     if (rsc->isSynchronous()) {
    383         return NULL;
    384     }
    385 
    386     if (!rsc->mIsGraphicsContext) {
    387         while (!rsc->mExit) {
    388             rsc->mIO.playCoreCommands(rsc, -1);
    389         }
    390 #ifndef RS_COMPATIBILITY_LIB
    391     } else {
    392 #ifndef ANDROID_RS_SERIALIZE
    393         DisplayEventReceiver displayEvent;
    394         DisplayEventReceiver::Event eventBuffer[1];
    395 #endif
    396         int vsyncRate = 0;
    397         int targetRate = 0;
    398 
    399         bool drawOnce = false;
    400         while (!rsc->mExit) {
    401             rsc->timerSet(RS_TIMER_IDLE);
    402 
    403 #ifndef ANDROID_RS_SERIALIZE
    404             if (!rsc->mRootScript.get() || !rsc->mHasSurface || rsc->mPaused) {
    405                 targetRate = 0;
    406             }
    407 
    408             if (vsyncRate != targetRate) {
    409                 displayEvent.setVsyncRate(targetRate);
    410                 vsyncRate = targetRate;
    411             }
    412             if (targetRate) {
    413                 drawOnce |= rsc->mIO.playCoreCommands(rsc, displayEvent.getFd());
    414                 while (displayEvent.getEvents(eventBuffer, 1) != 0) {
    415                     //ALOGE("vs2 time past %lld", (rsc->getTime() - eventBuffer[0].header.timestamp) / 1000000);
    416                 }
    417             } else
    418 #endif
    419             {
    420                 drawOnce |= rsc->mIO.playCoreCommands(rsc, -1);
    421             }
    422 
    423             if ((rsc->mRootScript.get() != NULL) && rsc->mHasSurface &&
    424                 (targetRate || drawOnce) && !rsc->mPaused) {
    425 
    426                 drawOnce = false;
    427                 targetRate = ((rsc->runRootScript() + 15) / 16);
    428 
    429                 if (rsc->props.mLogVisual) {
    430                     rsc->displayDebugStats();
    431                 }
    432 
    433                 rsc->timerSet(RS_TIMER_CLEAR_SWAP);
    434                 rsc->mHal.funcs.swap(rsc);
    435                 rsc->timerFrame();
    436                 rsc->timerSet(RS_TIMER_INTERNAL);
    437                 rsc->timerPrint();
    438                 rsc->timerReset();
    439             }
    440         }
    441 #endif
    442     }
    443 
    444     //ALOGV("%p RS Thread exiting", rsc);
    445 
    446 #ifndef RS_COMPATIBILITY_LIB
    447     if (rsc->mIsGraphicsContext) {
    448         pthread_mutex_lock(&gInitMutex);
    449         rsc->deinitEGL();
    450         pthread_mutex_unlock(&gInitMutex);
    451     }
    452 #endif
    453 
    454     //ALOGV("%p RS Thread exited", rsc);
    455     return NULL;
    456 }
    457 
    458 void Context::destroyWorkerThreadResources() {
    459     //ALOGV("destroyWorkerThreadResources 1");
    460     ObjectBase::zeroAllUserRef(this);
    461 #ifndef RS_COMPATIBILITY_LIB
    462     if (mIsGraphicsContext) {
    463          mRaster.clear();
    464          mFragment.clear();
    465          mVertex.clear();
    466          mFragmentStore.clear();
    467          mFont.clear();
    468          mRootScript.clear();
    469          mStateRaster.deinit(this);
    470          mStateVertex.deinit(this);
    471          mStateFragment.deinit(this);
    472          mStateFragmentStore.deinit(this);
    473          mStateFont.deinit(this);
    474          mStateSampler.deinit(this);
    475          mFBOCache.deinit(this);
    476     }
    477 #endif
    478     ObjectBase::freeAllChildren(this);
    479     mExit = true;
    480     //ALOGV("destroyWorkerThreadResources 2");
    481 }
    482 
    483 void Context::printWatchdogInfo(void *ctx) {
    484     Context *rsc = (Context *)ctx;
    485     if (rsc->watchdog.command && rsc->watchdog.file) {
    486         ALOGE("RS watchdog timeout: %i  %s  line %i %s", rsc->watchdog.inRoot,
    487              rsc->watchdog.command, rsc->watchdog.line, rsc->watchdog.file);
    488     } else {
    489         ALOGE("RS watchdog timeout: %i", rsc->watchdog.inRoot);
    490     }
    491 }
    492 
    493 
    494 void Context::setPriority(int32_t p) {
    495     // Note: If we put this in the proper "background" policy
    496     // the wallpapers can become completly unresponsive at times.
    497     // This is probably not what we want for something the user is actively
    498     // looking at.
    499     mThreadPriority = p;
    500     setpriority(PRIO_PROCESS, mNativeThreadId, p);
    501     mHal.funcs.setPriority(this, mThreadPriority);
    502 }
    503 
    504 Context::Context() {
    505     mDev = NULL;
    506     mRunning = false;
    507     mExit = false;
    508     mPaused = false;
    509     mObjHead = NULL;
    510     mError = RS_ERROR_NONE;
    511     mTargetSdkVersion = 14;
    512     mDPI = 96;
    513     mIsContextLite = false;
    514     memset(&watchdog, 0, sizeof(watchdog));
    515     mForceCpu = false;
    516     mContextType = RS_CONTEXT_TYPE_NORMAL;
    517     mSynchronous = false;
    518 }
    519 
    520 Context * Context::createContext(Device *dev, const RsSurfaceConfig *sc,
    521                                  RsContextType ct, uint32_t flags) {
    522     Context * rsc = new Context();
    523 
    524     if (flags & RS_CONTEXT_LOW_LATENCY) {
    525         rsc->mForceCpu = true;
    526     }
    527     if (flags & RS_CONTEXT_SYNCHRONOUS) {
    528         rsc->mSynchronous = true;
    529     }
    530     rsc->mContextType = ct;
    531 
    532     if (!rsc->initContext(dev, sc)) {
    533         delete rsc;
    534         return NULL;
    535     }
    536     return rsc;
    537 }
    538 
    539 Context * Context::createContextLite() {
    540     Context * rsc = new Context();
    541     rsc->mIsContextLite = true;
    542     return rsc;
    543 }
    544 
    545 bool Context::initContext(Device *dev, const RsSurfaceConfig *sc) {
    546     pthread_mutex_lock(&gInitMutex);
    547 
    548     mIO.init();
    549     mIO.setTimeoutCallback(printWatchdogInfo, this, 2e9);
    550 
    551     dev->addContext(this);
    552     mDev = dev;
    553     if (sc) {
    554         mUserSurfaceConfig = *sc;
    555     } else {
    556         memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
    557     }
    558 
    559     mIsGraphicsContext = sc != NULL;
    560 
    561     int status;
    562     pthread_attr_t threadAttr;
    563 
    564     pthread_mutex_unlock(&gInitMutex);
    565 
    566     // Global init done at this point.
    567 
    568     status = pthread_attr_init(&threadAttr);
    569     if (status) {
    570         ALOGE("Failed to init thread attribute.");
    571         return false;
    572     }
    573 
    574     mHasSurface = false;
    575 
    576     timerInit();
    577     timerSet(RS_TIMER_INTERNAL);
    578     if (mSynchronous) {
    579         threadProc(this);
    580     } else {
    581         status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
    582         if (status) {
    583             ALOGE("Failed to start rs context thread.");
    584             return false;
    585         }
    586         while (!mRunning && (mError == RS_ERROR_NONE)) {
    587             usleep(100);
    588         }
    589 
    590         if (mError != RS_ERROR_NONE) {
    591             ALOGE("Errors during thread init");
    592             return false;
    593         }
    594 
    595         pthread_attr_destroy(&threadAttr);
    596     }
    597     return true;
    598 }
    599 
    600 Context::~Context() {
    601     //ALOGV("%p Context::~Context", this);
    602 
    603     if (!mIsContextLite) {
    604         mPaused = false;
    605         void *res;
    606 
    607         mIO.shutdown();
    608         int status = pthread_join(mThreadId, &res);
    609         rsAssert(mExit);
    610 
    611         if (mHal.funcs.shutdownDriver) {
    612             mHal.funcs.shutdownDriver(this);
    613         }
    614 
    615         // Global structure cleanup.
    616         pthread_mutex_lock(&gInitMutex);
    617         if (mDev) {
    618             mDev->removeContext(this);
    619             mDev = NULL;
    620         }
    621         pthread_mutex_unlock(&gInitMutex);
    622     }
    623     //ALOGV("%p Context::~Context done", this);
    624 }
    625 
    626 #ifndef RS_COMPATIBILITY_LIB
    627 void Context::setSurface(uint32_t w, uint32_t h, RsNativeWindow sur) {
    628     rsAssert(mIsGraphicsContext);
    629     mHal.funcs.setSurface(this, w, h, sur);
    630 
    631     mHasSurface = sur != NULL;
    632     mWidth = w;
    633     mHeight = h;
    634 
    635     if (mWidth && mHeight) {
    636         mStateVertex.updateSize(this);
    637         mFBOCache.updateSize();
    638     }
    639 }
    640 
    641 uint32_t Context::getCurrentSurfaceWidth() const {
    642     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
    643         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
    644             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimX();
    645         }
    646     }
    647     if (mFBOCache.mHal.state.depthTarget != NULL) {
    648         return mFBOCache.mHal.state.depthTarget->getType()->getDimX();
    649     }
    650     return mWidth;
    651 }
    652 
    653 uint32_t Context::getCurrentSurfaceHeight() const {
    654     for (uint32_t i = 0; i < mFBOCache.mHal.state.colorTargetsCount; i ++) {
    655         if (mFBOCache.mHal.state.colorTargets[i] != NULL) {
    656             return mFBOCache.mHal.state.colorTargets[i]->getType()->getDimY();
    657         }
    658     }
    659     if (mFBOCache.mHal.state.depthTarget != NULL) {
    660         return mFBOCache.mHal.state.depthTarget->getType()->getDimY();
    661     }
    662     return mHeight;
    663 }
    664 
    665 void Context::pause() {
    666     rsAssert(mIsGraphicsContext);
    667     mPaused = true;
    668 }
    669 
    670 void Context::resume() {
    671     rsAssert(mIsGraphicsContext);
    672     mPaused = false;
    673 }
    674 
    675 void Context::setRootScript(Script *s) {
    676     rsAssert(mIsGraphicsContext);
    677     mRootScript.set(s);
    678 }
    679 
    680 void Context::setProgramStore(ProgramStore *pfs) {
    681     rsAssert(mIsGraphicsContext);
    682     if (pfs == NULL) {
    683         mFragmentStore.set(mStateFragmentStore.mDefault);
    684     } else {
    685         mFragmentStore.set(pfs);
    686     }
    687 }
    688 
    689 void Context::setProgramFragment(ProgramFragment *pf) {
    690     rsAssert(mIsGraphicsContext);
    691     if (pf == NULL) {
    692         mFragment.set(mStateFragment.mDefault);
    693     } else {
    694         mFragment.set(pf);
    695     }
    696 }
    697 
    698 void Context::setProgramRaster(ProgramRaster *pr) {
    699     rsAssert(mIsGraphicsContext);
    700     if (pr == NULL) {
    701         mRaster.set(mStateRaster.mDefault);
    702     } else {
    703         mRaster.set(pr);
    704     }
    705 }
    706 
    707 void Context::setProgramVertex(ProgramVertex *pv) {
    708     rsAssert(mIsGraphicsContext);
    709     if (pv == NULL) {
    710         mVertex.set(mStateVertex.mDefault);
    711     } else {
    712         mVertex.set(pv);
    713     }
    714 }
    715 
    716 void Context::setFont(Font *f) {
    717     rsAssert(mIsGraphicsContext);
    718     if (f == NULL) {
    719         mFont.set(mStateFont.mDefault);
    720     } else {
    721         mFont.set(f);
    722     }
    723 }
    724 #endif
    725 
    726 void Context::assignName(ObjectBase *obj, const char *name, uint32_t len) {
    727     rsAssert(!obj->getName());
    728     obj->setName(name, len);
    729     mNames.add(obj);
    730 }
    731 
    732 void Context::removeName(ObjectBase *obj) {
    733     for (size_t ct=0; ct < mNames.size(); ct++) {
    734         if (obj == mNames[ct]) {
    735             mNames.removeAt(ct);
    736             return;
    737         }
    738     }
    739 }
    740 
    741 RsMessageToClientType Context::peekMessageToClient(size_t *receiveLen, uint32_t *subID) {
    742     return (RsMessageToClientType)mIO.getClientHeader(receiveLen, subID);
    743 }
    744 
    745 RsMessageToClientType Context::getMessageToClient(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen) {
    746     return (RsMessageToClientType)mIO.getClientPayload(data, receiveLen, subID, bufferLen);
    747 }
    748 
    749 bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
    750                                   uint32_t subID, size_t len, bool waitForSpace) const {
    751 
    752     pthread_mutex_lock(&gMessageMutex);
    753     bool ret = mIO.sendToClient(cmdID, subID, data, len, waitForSpace);
    754     pthread_mutex_unlock(&gMessageMutex);
    755     return ret;
    756 }
    757 
    758 void Context::initToClient() {
    759     while (!mRunning) {
    760         usleep(100);
    761     }
    762 }
    763 
    764 void Context::deinitToClient() {
    765     mIO.clientShutdown();
    766 }
    767 
    768 void Context::setError(RsError e, const char *msg) const {
    769     mError = e;
    770     sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
    771 }
    772 
    773 
    774 void Context::dumpDebug() const {
    775     ALOGE("RS Context debug %p", this);
    776     ALOGE("RS Context debug");
    777 
    778     ALOGE(" RS width %i, height %i", mWidth, mHeight);
    779     ALOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
    780     ALOGE(" RS pThreadID %li, nativeThreadID %i", (long int)mThreadId, mNativeThreadId);
    781 }
    782 
    783 ///////////////////////////////////////////////////////////////////////////////////////////
    784 //
    785 
    786 namespace android {
    787 namespace renderscript {
    788 
    789 void rsi_ContextFinish(Context *rsc) {
    790 }
    791 
    792 void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
    793 #ifndef RS_COMPATIBILITY_LIB
    794     Script *s = static_cast<Script *>(vs);
    795     rsc->setRootScript(s);
    796 #endif
    797 }
    798 
    799 void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
    800     Sampler *s = static_cast<Sampler *>(vs);
    801 
    802     if (slot > RS_MAX_SAMPLER_SLOT) {
    803         ALOGE("Invalid sampler slot");
    804         return;
    805     }
    806 
    807     s->bindToContext(&rsc->mStateSampler, slot);
    808 }
    809 
    810 #ifndef RS_COMPATIBILITY_LIB
    811 void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
    812     ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
    813     rsc->setProgramStore(pfs);
    814 }
    815 
    816 void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
    817     ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
    818     rsc->setProgramFragment(pf);
    819 }
    820 
    821 void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
    822     ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
    823     rsc->setProgramRaster(pr);
    824 }
    825 
    826 void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
    827     ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
    828     rsc->setProgramVertex(pv);
    829 }
    830 
    831 void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
    832     Font *font = static_cast<Font *>(vfont);
    833     rsc->setFont(font);
    834 }
    835 #endif
    836 
    837 void rsi_AssignName(Context *rsc, RsObjectBase obj, const char *name, size_t name_length) {
    838     ObjectBase *ob = static_cast<ObjectBase *>(obj);
    839     rsc->assignName(ob, name, name_length);
    840 }
    841 
    842 void rsi_ObjDestroy(Context *rsc, void *optr) {
    843     ObjectBase *ob = static_cast<ObjectBase *>(optr);
    844     rsc->removeName(ob);
    845     ob->decUserRef();
    846 }
    847 
    848 #ifndef RS_COMPATIBILITY_LIB
    849 void rsi_ContextPause(Context *rsc) {
    850     rsc->pause();
    851 }
    852 
    853 void rsi_ContextResume(Context *rsc) {
    854     rsc->resume();
    855 }
    856 
    857 void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, RsNativeWindow sur) {
    858     rsc->setSurface(w, h, sur);
    859 }
    860 #endif
    861 
    862 void rsi_ContextSetPriority(Context *rsc, int32_t p) {
    863     rsc->setPriority(p);
    864 }
    865 
    866 void rsi_ContextDump(Context *rsc, int32_t bits) {
    867     ObjectBase::dumpAll(rsc);
    868 }
    869 
    870 void rsi_ContextDestroyWorker(Context *rsc) {
    871     rsc->destroyWorkerThreadResources();
    872 }
    873 
    874 void rsi_ContextDestroy(Context *rsc) {
    875     //ALOGV("%p rsContextDestroy", rsc);
    876     rsContextDestroyWorker(rsc);
    877     delete rsc;
    878     //ALOGV("%p rsContextDestroy done", rsc);
    879 }
    880 
    881 RsMessageToClientType rsi_ContextPeekMessage(Context *rsc,
    882                                            size_t * receiveLen, size_t receiveLen_length,
    883                                            uint32_t * subID, size_t subID_length) {
    884     return rsc->peekMessageToClient(receiveLen, subID);
    885 }
    886 
    887 RsMessageToClientType rsi_ContextGetMessage(Context *rsc, void * data, size_t data_length,
    888                                           size_t * receiveLen, size_t receiveLen_length,
    889                                           uint32_t * subID, size_t subID_length) {
    890     rsAssert(subID_length == sizeof(uint32_t));
    891     rsAssert(receiveLen_length == sizeof(size_t));
    892     return rsc->getMessageToClient(data, receiveLen, subID, data_length);
    893 }
    894 
    895 void rsi_ContextInitToClient(Context *rsc) {
    896     rsc->initToClient();
    897 }
    898 
    899 void rsi_ContextDeinitToClient(Context *rsc) {
    900     rsc->deinitToClient();
    901 }
    902 
    903 void rsi_ContextSendMessage(Context *rsc, uint32_t id, const uint8_t *data, size_t len) {
    904     rsc->sendMessageToClient(data, RS_MESSAGE_TO_CLIENT_USER, id, len, true);
    905 }
    906 
    907 // implementation of handcode LF_ObjDestroy
    908 // required so nObjDestroy can be run from finalizer without blocking
    909 void LF_ObjDestroy_handcode(const Context *rsc, RsAsyncVoidPtr objPtr) {
    910     if (((Context *)rsc)->isSynchronous()) {
    911         rsi_ObjDestroy((Context *)rsc, objPtr);
    912         return;
    913     }
    914 
    915     // struct has two parts:
    916     // RsPlaybackRemoteHeader (cmdID and bytes)
    917     // RS_CMD_ObjDestroy (ptr)
    918     struct destroyCmd {
    919         uint32_t cmdID;
    920         uint32_t bytes;
    921         RsAsyncVoidPtr ptr;
    922      };
    923 
    924     destroyCmd cmd;
    925     cmd.cmdID = RS_CMD_ID_ObjDestroy;
    926     cmd.bytes = sizeof(RsAsyncVoidPtr);
    927     cmd.ptr = objPtr;
    928     ThreadIO *io = &((Context *)rsc)->mIO;
    929     io->coreWrite((void*)&cmd, sizeof(destroyCmd));
    930 
    931 }
    932 
    933 }
    934 }
    935 
    936 extern "C" RsContext rsContextCreate(RsDevice vdev, uint32_t version, uint32_t sdkVersion,
    937                                      RsContextType ct, uint32_t flags) {
    938     //ALOGV("rsContextCreate dev=%p", vdev);
    939     Device * dev = static_cast<Device *>(vdev);
    940     Context *rsc = Context::createContext(dev, NULL, ct, flags);
    941     if (rsc) {
    942         rsc->setTargetSdkVersion(sdkVersion);
    943     }
    944     return rsc;
    945 }
    946 
    947 #ifndef RS_COMPATIBILITY_LIB
    948 RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
    949                             uint32_t sdkVersion, RsSurfaceConfig sc,
    950                             uint32_t dpi) {
    951     //ALOGV("rsContextCreateGL dev=%p", vdev);
    952     Device * dev = static_cast<Device *>(vdev);
    953     Context *rsc = Context::createContext(dev, &sc);
    954     if (rsc) {
    955         rsc->setTargetSdkVersion(sdkVersion);
    956         rsc->setDPI(dpi);
    957     }
    958     //ALOGV("%p rsContextCreateGL ret", rsc);
    959     return rsc;
    960 }
    961 #endif
    962 
    963 // Only to be called at a3d load time, before object is visible to user
    964 // not thread safe
    965 void rsaGetName(RsContext con, void * obj, const char **name) {
    966     ObjectBase *ob = static_cast<ObjectBase *>(obj);
    967     (*name) = ob->getName();
    968 }
    969 
    970