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      1 /*
      2  * Copyright (C) 2012 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 "rsCpuCore.h"
     18 #include "rsCpuScript.h"
     19 #include "rsCpuScriptGroup.h"
     20 #include "rsCpuScriptGroup2.h"
     21 
     22 #include <malloc.h>
     23 #include "rsContext.h"
     24 
     25 #include <sys/types.h>
     26 #include <sys/resource.h>
     27 #include <sched.h>
     28 #include <sys/syscall.h>
     29 #include <stdio.h>
     30 #include <string.h>
     31 #include <unistd.h>
     32 
     33 #if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB)
     34 #include <cutils/properties.h>
     35 #include "utils/StopWatch.h"
     36 #endif
     37 
     38 #ifdef RS_SERVER
     39 // Android exposes gettid(), standard Linux does not
     40 static pid_t gettid() {
     41     return syscall(SYS_gettid);
     42 }
     43 #endif
     44 
     45 using namespace android;
     46 using namespace android::renderscript;
     47 
     48 typedef void (*outer_foreach_t)(
     49     const RsExpandKernelDriverInfo *,
     50     uint32_t x1, uint32_t x2, uint32_t outstep);
     51 
     52 
     53 static pthread_key_t gThreadTLSKey = 0;
     54 static uint32_t gThreadTLSKeyCount = 0;
     55 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
     56 
     57 bool android::renderscript::gArchUseSIMD = false;
     58 
     59 RsdCpuReference::~RsdCpuReference() {
     60 }
     61 
     62 RsdCpuReference * RsdCpuReference::create(Context *rsc, uint32_t version_major,
     63         uint32_t version_minor, sym_lookup_t lfn, script_lookup_t slfn
     64         , bcc::RSLinkRuntimeCallback pLinkRuntimeCallback,
     65         RSSelectRTCallback pSelectRTCallback,
     66         const char *pBccPluginName
     67         ) {
     68 
     69     RsdCpuReferenceImpl *cpu = new RsdCpuReferenceImpl(rsc);
     70     if (!cpu) {
     71         return nullptr;
     72     }
     73     if (!cpu->init(version_major, version_minor, lfn, slfn)) {
     74         delete cpu;
     75         return nullptr;
     76     }
     77 
     78     cpu->setLinkRuntimeCallback(pLinkRuntimeCallback);
     79     cpu->setSelectRTCallback(pSelectRTCallback);
     80     if (pBccPluginName) {
     81         cpu->setBccPluginName(pBccPluginName);
     82     }
     83 
     84     return cpu;
     85 }
     86 
     87 
     88 Context * RsdCpuReference::getTlsContext() {
     89     ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
     90     return tls->mContext;
     91 }
     92 
     93 const Script * RsdCpuReference::getTlsScript() {
     94     ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
     95     return tls->mScript;
     96 }
     97 
     98 pthread_key_t RsdCpuReference::getThreadTLSKey(){ return gThreadTLSKey; }
     99 
    100 ////////////////////////////////////////////////////////////
    101 ///
    102 
    103 RsdCpuReferenceImpl::RsdCpuReferenceImpl(Context *rsc) {
    104     mRSC = rsc;
    105 
    106     version_major = 0;
    107     version_minor = 0;
    108     mInForEach = false;
    109     memset(&mWorkers, 0, sizeof(mWorkers));
    110     memset(&mTlsStruct, 0, sizeof(mTlsStruct));
    111     mExit = false;
    112     mLinkRuntimeCallback = nullptr;
    113     mSelectRTCallback = nullptr;
    114     mSetupCompilerCallback = nullptr;
    115     mEmbedGlobalInfo = true;
    116     mEmbedGlobalInfoSkipConstant = true;
    117 }
    118 
    119 
    120 void * RsdCpuReferenceImpl::helperThreadProc(void *vrsc) {
    121     RsdCpuReferenceImpl *dc = (RsdCpuReferenceImpl *)vrsc;
    122 
    123     uint32_t idx = __sync_fetch_and_add(&dc->mWorkers.mLaunchCount, 1);
    124 
    125     //ALOGV("RS helperThread starting %p idx=%i", dc, idx);
    126 
    127     dc->mWorkers.mLaunchSignals[idx].init();
    128     dc->mWorkers.mNativeThreadId[idx] = gettid();
    129 
    130     memset(&dc->mTlsStruct, 0, sizeof(dc->mTlsStruct));
    131     int status = pthread_setspecific(gThreadTLSKey, &dc->mTlsStruct);
    132     if (status) {
    133         ALOGE("pthread_setspecific %i", status);
    134     }
    135 
    136 #if 0
    137     typedef struct {uint64_t bits[1024 / 64]; } cpu_set_t;
    138     cpu_set_t cpuset;
    139     memset(&cpuset, 0, sizeof(cpuset));
    140     cpuset.bits[idx / 64] |= 1ULL << (idx % 64);
    141     int ret = syscall(241, rsc->mWorkers.mNativeThreadId[idx],
    142               sizeof(cpuset), &cpuset);
    143     ALOGE("SETAFFINITY ret = %i %s", ret, EGLUtils::strerror(ret));
    144 #endif
    145 
    146     while (!dc->mExit) {
    147         dc->mWorkers.mLaunchSignals[idx].wait();
    148         if (dc->mWorkers.mLaunchCallback) {
    149            // idx +1 is used because the calling thread is always worker 0.
    150            dc->mWorkers.mLaunchCallback(dc->mWorkers.mLaunchData, idx+1);
    151         }
    152         __sync_fetch_and_sub(&dc->mWorkers.mRunningCount, 1);
    153         dc->mWorkers.mCompleteSignal.set();
    154     }
    155 
    156     //ALOGV("RS helperThread exited %p idx=%i", dc, idx);
    157     return nullptr;
    158 }
    159 
    160 void RsdCpuReferenceImpl::launchThreads(WorkerCallback_t cbk, void *data) {
    161     mWorkers.mLaunchData = data;
    162     mWorkers.mLaunchCallback = cbk;
    163 
    164     // fast path for very small launches
    165     MTLaunchStruct *mtls = (MTLaunchStruct *)data;
    166     if (mtls && mtls->fep.dim.y <= 1 && mtls->end.x <= mtls->start.x + mtls->mSliceSize) {
    167         if (mWorkers.mLaunchCallback) {
    168             mWorkers.mLaunchCallback(mWorkers.mLaunchData, 0);
    169         }
    170         return;
    171     }
    172 
    173     mWorkers.mRunningCount = mWorkers.mCount;
    174     __sync_synchronize();
    175 
    176     for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
    177         mWorkers.mLaunchSignals[ct].set();
    178     }
    179 
    180     // We use the calling thread as one of the workers so we can start without
    181     // the delay of the thread wakeup.
    182     if (mWorkers.mLaunchCallback) {
    183         mWorkers.mLaunchCallback(mWorkers.mLaunchData, 0);
    184     }
    185 
    186     while (__sync_fetch_and_or(&mWorkers.mRunningCount, 0) != 0) {
    187         mWorkers.mCompleteSignal.wait();
    188     }
    189 }
    190 
    191 
    192 void RsdCpuReferenceImpl::lockMutex() {
    193     pthread_mutex_lock(&gInitMutex);
    194 }
    195 
    196 void RsdCpuReferenceImpl::unlockMutex() {
    197     pthread_mutex_unlock(&gInitMutex);
    198 }
    199 
    200 // Determine if the CPU we're running on supports SIMD instructions.
    201 static void GetCpuInfo() {
    202     // Read the CPU flags from /proc/cpuinfo.
    203     FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
    204 
    205     if (!cpuinfo) {
    206         return;
    207     }
    208 
    209     char cpuinfostr[4096];
    210     // fgets() ends with newline or EOF, need to check the whole
    211     // "cpuinfo" file to make sure we can use SIMD or not.
    212     while (fgets(cpuinfostr, sizeof(cpuinfostr), cpuinfo)) {
    213 #if defined(ARCH_ARM_HAVE_VFP) || defined(ARCH_ARM_USE_INTRINSICS)
    214         gArchUseSIMD = strstr(cpuinfostr, " neon") || strstr(cpuinfostr, " asimd");
    215 #elif defined(ARCH_X86_HAVE_SSSE3)
    216         gArchUseSIMD = strstr(cpuinfostr, " ssse3");
    217 #endif
    218         if (gArchUseSIMD) {
    219             break;
    220         }
    221     }
    222     fclose(cpuinfo);
    223 }
    224 
    225 bool RsdCpuReferenceImpl::init(uint32_t version_major, uint32_t version_minor,
    226                                sym_lookup_t lfn, script_lookup_t slfn) {
    227 
    228     mSymLookupFn = lfn;
    229     mScriptLookupFn = slfn;
    230 
    231     lockMutex();
    232     if (!gThreadTLSKeyCount) {
    233         int status = pthread_key_create(&gThreadTLSKey, nullptr);
    234         if (status) {
    235             ALOGE("Failed to init thread tls key.");
    236             unlockMutex();
    237             return false;
    238         }
    239     }
    240     gThreadTLSKeyCount++;
    241     unlockMutex();
    242 
    243     mTlsStruct.mContext = mRSC;
    244     mTlsStruct.mScript = nullptr;
    245     int status = pthread_setspecific(gThreadTLSKey, &mTlsStruct);
    246     if (status) {
    247         ALOGE("pthread_setspecific %i", status);
    248     }
    249 
    250     GetCpuInfo();
    251 
    252     int cpu = sysconf(_SC_NPROCESSORS_CONF);
    253     if(mRSC->props.mDebugMaxThreads) {
    254         cpu = mRSC->props.mDebugMaxThreads;
    255     }
    256     if (cpu < 2) {
    257         mWorkers.mCount = 0;
    258         return true;
    259     }
    260 
    261     // Subtract one from the cpu count because we also use the command thread as a worker.
    262     mWorkers.mCount = (uint32_t)(cpu - 1);
    263 
    264     ALOGV("%p Launching thread(s), CPUs %i", mRSC, mWorkers.mCount + 1);
    265 
    266     mWorkers.mThreadId = (pthread_t *) calloc(mWorkers.mCount, sizeof(pthread_t));
    267     mWorkers.mNativeThreadId = (pid_t *) calloc(mWorkers.mCount, sizeof(pid_t));
    268     mWorkers.mLaunchSignals = new Signal[mWorkers.mCount];
    269     mWorkers.mLaunchCallback = nullptr;
    270 
    271     mWorkers.mCompleteSignal.init();
    272 
    273     mWorkers.mRunningCount = mWorkers.mCount;
    274     mWorkers.mLaunchCount = 0;
    275     __sync_synchronize();
    276 
    277     pthread_attr_t threadAttr;
    278     status = pthread_attr_init(&threadAttr);
    279     if (status) {
    280         ALOGE("Failed to init thread attribute.");
    281         return false;
    282     }
    283 
    284     for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
    285         status = pthread_create(&mWorkers.mThreadId[ct], &threadAttr, helperThreadProc, this);
    286         if (status) {
    287             mWorkers.mCount = ct;
    288             ALOGE("Created fewer than expected number of RS threads.");
    289             break;
    290         }
    291     }
    292     while (__sync_fetch_and_or(&mWorkers.mRunningCount, 0) != 0) {
    293         usleep(100);
    294     }
    295 
    296     pthread_attr_destroy(&threadAttr);
    297     return true;
    298 }
    299 
    300 
    301 void RsdCpuReferenceImpl::setPriority(int32_t priority) {
    302     for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
    303         setpriority(PRIO_PROCESS, mWorkers.mNativeThreadId[ct], priority);
    304     }
    305 }
    306 
    307 RsdCpuReferenceImpl::~RsdCpuReferenceImpl() {
    308     mExit = true;
    309     mWorkers.mLaunchData = nullptr;
    310     mWorkers.mLaunchCallback = nullptr;
    311     mWorkers.mRunningCount = mWorkers.mCount;
    312     __sync_synchronize();
    313     for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
    314         mWorkers.mLaunchSignals[ct].set();
    315     }
    316     void *res;
    317     for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
    318         pthread_join(mWorkers.mThreadId[ct], &res);
    319     }
    320     rsAssert(__sync_fetch_and_or(&mWorkers.mRunningCount, 0) == 0);
    321     free(mWorkers.mThreadId);
    322     free(mWorkers.mNativeThreadId);
    323     delete[] mWorkers.mLaunchSignals;
    324 
    325     // Global structure cleanup.
    326     lockMutex();
    327     --gThreadTLSKeyCount;
    328     if (!gThreadTLSKeyCount) {
    329         pthread_key_delete(gThreadTLSKey);
    330     }
    331     unlockMutex();
    332 
    333 }
    334 
    335 static inline void FepPtrSetup(const MTLaunchStruct *mtls, RsExpandKernelDriverInfo *fep,
    336                                uint32_t x, uint32_t y,
    337                                uint32_t z = 0, uint32_t lod = 0,
    338                                RsAllocationCubemapFace face = RS_ALLOCATION_CUBEMAP_FACE_POSITIVE_X,
    339                                uint32_t a1 = 0, uint32_t a2 = 0, uint32_t a3 = 0, uint32_t a4 = 0) {
    340 
    341     for (uint32_t i = 0; i < fep->inLen; i++) {
    342         fep->inPtr[i] = (const uint8_t *)mtls->ains[i]->getPointerUnchecked(x, y, z, lod, face, a1, a2, a3, a4);
    343     }
    344 
    345     if (mtls->aout[0] != nullptr) {
    346         fep->outPtr[0] = (uint8_t *)mtls->aout[0]->getPointerUnchecked(x, y, z, lod, face, a1, a2, a3, a4);
    347     }
    348 }
    349 
    350 static uint32_t sliceInt(uint32_t *p, uint32_t val, uint32_t start, uint32_t end) {
    351     if (start >= end) {
    352         *p = start;
    353         return val;
    354     }
    355 
    356     uint32_t div = end - start;
    357 
    358     uint32_t n = val / div;
    359     *p = (val - (n * div)) + start;
    360     return n;
    361 }
    362 
    363 static bool SelectOuterSlice(const MTLaunchStruct *mtls, RsExpandKernelDriverInfo* fep, uint32_t sliceNum) {
    364 
    365     uint32_t r = sliceNum;
    366     r = sliceInt(&fep->current.z, r, mtls->start.z, mtls->end.z);
    367     r = sliceInt(&fep->current.lod, r, mtls->start.lod, mtls->end.lod);
    368     r = sliceInt(&fep->current.face, r, mtls->start.face, mtls->end.face);
    369     r = sliceInt(&fep->current.array[0], r, mtls->start.array[0], mtls->end.array[0]);
    370     r = sliceInt(&fep->current.array[1], r, mtls->start.array[1], mtls->end.array[1]);
    371     r = sliceInt(&fep->current.array[2], r, mtls->start.array[2], mtls->end.array[2]);
    372     r = sliceInt(&fep->current.array[3], r, mtls->start.array[3], mtls->end.array[3]);
    373     return r == 0;
    374 }
    375 
    376 
    377 static void walk_general(void *usr, uint32_t idx) {
    378     MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
    379     RsExpandKernelDriverInfo fep = mtls->fep;
    380     fep.lid = idx;
    381     outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
    382 
    383 
    384     while(1) {
    385         uint32_t slice = (uint32_t)__sync_fetch_and_add(&mtls->mSliceNum, 1);
    386 
    387         if (!SelectOuterSlice(mtls, &fep, slice)) {
    388             return;
    389         }
    390 
    391         for (fep.current.y = mtls->start.y; fep.current.y < mtls->end.y;
    392              fep.current.y++) {
    393 
    394             FepPtrSetup(mtls, &fep, mtls->start.x,
    395                         fep.current.y, fep.current.z, fep.current.lod,
    396                         (RsAllocationCubemapFace)fep.current.face,
    397                         fep.current.array[0], fep.current.array[1],
    398                         fep.current.array[2], fep.current.array[3]);
    399 
    400             fn(&fep, mtls->start.x, mtls->end.x, mtls->fep.outStride[0]);
    401         }
    402     }
    403 
    404 }
    405 
    406 static void walk_2d(void *usr, uint32_t idx) {
    407     MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
    408     RsExpandKernelDriverInfo fep = mtls->fep;
    409     fep.lid = idx;
    410     outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
    411 
    412     while (1) {
    413         uint32_t slice  = (uint32_t)__sync_fetch_and_add(&mtls->mSliceNum, 1);
    414         uint32_t yStart = mtls->start.y + slice * mtls->mSliceSize;
    415         uint32_t yEnd   = yStart + mtls->mSliceSize;
    416 
    417         yEnd = rsMin(yEnd, mtls->end.y);
    418 
    419         if (yEnd <= yStart) {
    420             return;
    421         }
    422 
    423         for (fep.current.y = yStart; fep.current.y < yEnd; fep.current.y++) {
    424             FepPtrSetup(mtls, &fep, mtls->start.x, fep.current.y);
    425 
    426             fn(&fep, mtls->start.x, mtls->end.x, fep.outStride[0]);
    427         }
    428     }
    429 }
    430 
    431 static void walk_1d(void *usr, uint32_t idx) {
    432     MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
    433     RsExpandKernelDriverInfo fep = mtls->fep;
    434     fep.lid = idx;
    435     outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
    436 
    437     while (1) {
    438         uint32_t slice  = (uint32_t)__sync_fetch_and_add(&mtls->mSliceNum, 1);
    439         uint32_t xStart = mtls->start.x + slice * mtls->mSliceSize;
    440         uint32_t xEnd   = xStart + mtls->mSliceSize;
    441 
    442         xEnd = rsMin(xEnd, mtls->end.x);
    443 
    444         if (xEnd <= xStart) {
    445             return;
    446         }
    447 
    448         FepPtrSetup(mtls, &fep, xStart, 0);
    449 
    450         fn(&fep, xStart, xEnd, fep.outStride[0]);
    451     }
    452 }
    453 
    454 void RsdCpuReferenceImpl::launchThreads(const Allocation ** ains,
    455                                         uint32_t inLen,
    456                                         Allocation* aout,
    457                                         const RsScriptCall* sc,
    458                                         MTLaunchStruct* mtls) {
    459 
    460     //android::StopWatch kernel_time("kernel time");
    461 
    462     bool outerDims = (mtls->start.z != mtls->end.z) ||
    463                      (mtls->start.face != mtls->end.face) ||
    464                      (mtls->start.lod != mtls->end.lod) ||
    465                      (mtls->start.array[0] != mtls->end.array[0]) ||
    466                      (mtls->start.array[1] != mtls->end.array[1]) ||
    467                      (mtls->start.array[2] != mtls->end.array[2]) ||
    468                      (mtls->start.array[3] != mtls->end.array[3]);
    469 
    470     if ((mWorkers.mCount >= 1) && mtls->isThreadable && !mInForEach) {
    471         const size_t targetByteChunk = 16 * 1024;
    472         mInForEach = true;
    473 
    474         if (outerDims) {
    475             // No fancy logic for chunk size
    476             mtls->mSliceSize = 1;
    477             launchThreads(walk_general, mtls);
    478         } else if (mtls->fep.dim.y > 1) {
    479             uint32_t s1 = mtls->fep.dim.y / ((mWorkers.mCount + 1) * 4);
    480             uint32_t s2 = 0;
    481 
    482             // This chooses our slice size to rate limit atomic ops to
    483             // one per 16k bytes of reads/writes.
    484             if ((mtls->aout[0] != nullptr) && mtls->aout[0]->mHal.drvState.lod[0].stride) {
    485                 s2 = targetByteChunk / mtls->aout[0]->mHal.drvState.lod[0].stride;
    486             } else if (mtls->ains[0]) {
    487                 s2 = targetByteChunk / mtls->ains[0]->mHal.drvState.lod[0].stride;
    488             } else {
    489                 // Launch option only case
    490                 // Use s1 based only on the dimensions
    491                 s2 = s1;
    492             }
    493             mtls->mSliceSize = rsMin(s1, s2);
    494 
    495             if(mtls->mSliceSize < 1) {
    496                 mtls->mSliceSize = 1;
    497             }
    498 
    499             launchThreads(walk_2d, mtls);
    500         } else {
    501             uint32_t s1 = mtls->fep.dim.x / ((mWorkers.mCount + 1) * 4);
    502             uint32_t s2 = 0;
    503 
    504             // This chooses our slice size to rate limit atomic ops to
    505             // one per 16k bytes of reads/writes.
    506             if ((mtls->aout[0] != nullptr) && mtls->aout[0]->getType()->getElementSizeBytes()) {
    507                 s2 = targetByteChunk / mtls->aout[0]->getType()->getElementSizeBytes();
    508             } else if (mtls->ains[0]) {
    509                 s2 = targetByteChunk / mtls->ains[0]->getType()->getElementSizeBytes();
    510             } else {
    511                 // Launch option only case
    512                 // Use s1 based only on the dimensions
    513                 s2 = s1;
    514             }
    515             mtls->mSliceSize = rsMin(s1, s2);
    516 
    517             if (mtls->mSliceSize < 1) {
    518                 mtls->mSliceSize = 1;
    519             }
    520 
    521             launchThreads(walk_1d, mtls);
    522         }
    523         mInForEach = false;
    524 
    525     } else {
    526         outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
    527         uint32_t slice = 0;
    528 
    529 
    530         while(SelectOuterSlice(mtls, &mtls->fep, slice++)) {
    531             for (mtls->fep.current.y = mtls->start.y;
    532                  mtls->fep.current.y < mtls->end.y;
    533                  mtls->fep.current.y++) {
    534 
    535                 FepPtrSetup(mtls, &mtls->fep, mtls->start.x,
    536                             mtls->fep.current.y, mtls->fep.current.z, mtls->fep.current.lod,
    537                             (RsAllocationCubemapFace) mtls->fep.current.face,
    538                             mtls->fep.current.array[0], mtls->fep.current.array[1],
    539                             mtls->fep.current.array[2], mtls->fep.current.array[3]);
    540 
    541                 fn(&mtls->fep, mtls->start.x, mtls->end.x, mtls->fep.outStride[0]);
    542             }
    543         }
    544     }
    545 }
    546 
    547 RsdCpuScriptImpl * RsdCpuReferenceImpl::setTLS(RsdCpuScriptImpl *sc) {
    548     //ALOGE("setTls %p", sc);
    549     ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
    550     rsAssert(tls);
    551     RsdCpuScriptImpl *old = tls->mImpl;
    552     tls->mImpl = sc;
    553     tls->mContext = mRSC;
    554     if (sc) {
    555         tls->mScript = sc->getScript();
    556     } else {
    557         tls->mScript = nullptr;
    558     }
    559     return old;
    560 }
    561 
    562 const RsdCpuReference::CpuSymbol * RsdCpuReferenceImpl::symLookup(const char *name) {
    563     return mSymLookupFn(mRSC, name);
    564 }
    565 
    566 
    567 RsdCpuReference::CpuScript * RsdCpuReferenceImpl::createScript(const ScriptC *s,
    568                                     char const *resName, char const *cacheDir,
    569                                     uint8_t const *bitcode, size_t bitcodeSize,
    570                                     uint32_t flags) {
    571 
    572     RsdCpuScriptImpl *i = new RsdCpuScriptImpl(this, s);
    573     if (!i->init(resName, cacheDir, bitcode, bitcodeSize, flags
    574         , getBccPluginName()
    575         )) {
    576         delete i;
    577         return nullptr;
    578     }
    579     return i;
    580 }
    581 
    582 extern RsdCpuScriptImpl * rsdIntrinsic_3DLUT(RsdCpuReferenceImpl *ctx,
    583                                              const Script *s, const Element *e);
    584 extern RsdCpuScriptImpl * rsdIntrinsic_Convolve3x3(RsdCpuReferenceImpl *ctx,
    585                                                    const Script *s, const Element *e);
    586 extern RsdCpuScriptImpl * rsdIntrinsic_ColorMatrix(RsdCpuReferenceImpl *ctx,
    587                                                    const Script *s, const Element *e);
    588 extern RsdCpuScriptImpl * rsdIntrinsic_LUT(RsdCpuReferenceImpl *ctx,
    589                                            const Script *s, const Element *e);
    590 extern RsdCpuScriptImpl * rsdIntrinsic_Convolve5x5(RsdCpuReferenceImpl *ctx,
    591                                                    const Script *s, const Element *e);
    592 extern RsdCpuScriptImpl * rsdIntrinsic_Blur(RsdCpuReferenceImpl *ctx,
    593                                             const Script *s, const Element *e);
    594 extern RsdCpuScriptImpl * rsdIntrinsic_YuvToRGB(RsdCpuReferenceImpl *ctx,
    595                                                 const Script *s, const Element *e);
    596 extern RsdCpuScriptImpl * rsdIntrinsic_Blend(RsdCpuReferenceImpl *ctx,
    597                                              const Script *s, const Element *e);
    598 extern RsdCpuScriptImpl * rsdIntrinsic_Histogram(RsdCpuReferenceImpl *ctx,
    599                                                  const Script *s, const Element *e);
    600 extern RsdCpuScriptImpl * rsdIntrinsic_Resize(RsdCpuReferenceImpl *ctx,
    601                                               const Script *s, const Element *e);
    602 extern RsdCpuScriptImpl * rsdIntrinsic_BLAS(RsdCpuReferenceImpl *ctx,
    603                                               const Script *s, const Element *e);
    604 
    605 RsdCpuReference::CpuScript * RsdCpuReferenceImpl::createIntrinsic(const Script *s,
    606                                     RsScriptIntrinsicID iid, Element *e) {
    607 
    608     RsdCpuScriptImpl *i = nullptr;
    609     switch (iid) {
    610     case RS_SCRIPT_INTRINSIC_ID_3DLUT:
    611         i = rsdIntrinsic_3DLUT(this, s, e);
    612         break;
    613     case RS_SCRIPT_INTRINSIC_ID_CONVOLVE_3x3:
    614         i = rsdIntrinsic_Convolve3x3(this, s, e);
    615         break;
    616     case RS_SCRIPT_INTRINSIC_ID_COLOR_MATRIX:
    617         i = rsdIntrinsic_ColorMatrix(this, s, e);
    618         break;
    619     case RS_SCRIPT_INTRINSIC_ID_LUT:
    620         i = rsdIntrinsic_LUT(this, s, e);
    621         break;
    622     case RS_SCRIPT_INTRINSIC_ID_CONVOLVE_5x5:
    623         i = rsdIntrinsic_Convolve5x5(this, s, e);
    624         break;
    625     case RS_SCRIPT_INTRINSIC_ID_BLUR:
    626         i = rsdIntrinsic_Blur(this, s, e);
    627         break;
    628     case RS_SCRIPT_INTRINSIC_ID_YUV_TO_RGB:
    629         i = rsdIntrinsic_YuvToRGB(this, s, e);
    630         break;
    631     case RS_SCRIPT_INTRINSIC_ID_BLEND:
    632         i = rsdIntrinsic_Blend(this, s, e);
    633         break;
    634     case RS_SCRIPT_INTRINSIC_ID_HISTOGRAM:
    635         i = rsdIntrinsic_Histogram(this, s, e);
    636         break;
    637     case RS_SCRIPT_INTRINSIC_ID_RESIZE:
    638         i = rsdIntrinsic_Resize(this, s, e);
    639         break;
    640     case RS_SCRIPT_INTRINSIC_ID_BLAS:
    641         i = rsdIntrinsic_BLAS(this, s, e);
    642         break;
    643 
    644     default:
    645         rsAssert(0);
    646     }
    647 
    648     return i;
    649 }
    650 
    651 void* RsdCpuReferenceImpl::createScriptGroup(const ScriptGroupBase *sg) {
    652   switch (sg->getApiVersion()) {
    653     case ScriptGroupBase::SG_V1: {
    654       CpuScriptGroupImpl *sgi = new CpuScriptGroupImpl(this, sg);
    655       if (!sgi->init()) {
    656         delete sgi;
    657         return nullptr;
    658       }
    659       return sgi;
    660     }
    661     case ScriptGroupBase::SG_V2: {
    662       return new CpuScriptGroup2Impl(this, sg);
    663     }
    664   }
    665   return nullptr;
    666 }
    667