rsCpuCore.cpp revision 005113297b19ed256b6db9d6bc293ed9266899fc 
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
21#include <malloc.h>
22#include "rsContext.h"
23
24#include <sys/types.h>
25#include <sys/resource.h>
26#include <sched.h>
27#include <sys/syscall.h>
28#include <string.h>
29#include <unistd.h>
30
31#include <stdio.h>
32#include <stdlib.h>
33#include <fcntl.h>
34
35#if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB)
36#include <cutils/properties.h>
37#include "utils/StopWatch.h"
38#endif
39
40#ifdef RS_SERVER
41// Android exposes gettid(), standard Linux does not
42static pid_t gettid() {
43    return syscall(SYS_gettid);
44}
45#endif
46
47using namespace android;
48using namespace android::renderscript;
49
50typedef void (*outer_foreach_t)(
51    const android::renderscript::RsForEachStubParamStruct *,
52    uint32_t x1, uint32_t x2,
53    uint32_t instep, uint32_t outstep);
54
55
56static pthread_key_t gThreadTLSKey = 0;
57static uint32_t gThreadTLSKeyCount = 0;
58static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER;
59
60bool android::renderscript::gArchUseSIMD = false;
61
62RsdCpuReference::~RsdCpuReference() {
63}
64
65RsdCpuReference * RsdCpuReference::create(Context *rsc, uint32_t version_major,
66        uint32_t version_minor, sym_lookup_t lfn, script_lookup_t slfn
67#ifndef RS_COMPATIBILITY_LIB
68        , bcc::RSLinkRuntimeCallback pLinkRuntimeCallback,
69        RSSelectRTCallback pSelectRTCallback,
70        const char *pBccPluginName
71#endif
72        ) {
73
74    RsdCpuReferenceImpl *cpu = new RsdCpuReferenceImpl(rsc);
75    if (!cpu) {
76        return NULL;
77    }
78    if (!cpu->init(version_major, version_minor, lfn, slfn)) {
79        delete cpu;
80        return NULL;
81    }
82
83#ifndef RS_COMPATIBILITY_LIB
84    cpu->setLinkRuntimeCallback(pLinkRuntimeCallback);
85    cpu->setSelectRTCallback(pSelectRTCallback);
86    if (pBccPluginName) {
87        cpu->setBccPluginName(pBccPluginName);
88    }
89#endif
90
91    return cpu;
92}
93
94
95Context * RsdCpuReference::getTlsContext() {
96    ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
97    return tls->mContext;
98}
99
100const Script * RsdCpuReference::getTlsScript() {
101    ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
102    return tls->mScript;
103}
104
105pthread_key_t RsdCpuReference::getThreadTLSKey(){ return gThreadTLSKey; }
106
107////////////////////////////////////////////////////////////
108///
109
110RsdCpuReferenceImpl::RsdCpuReferenceImpl(Context *rsc) {
111    mRSC = rsc;
112
113    version_major = 0;
114    version_minor = 0;
115    mInForEach = false;
116    memset(&mWorkers, 0, sizeof(mWorkers));
117    memset(&mTlsStruct, 0, sizeof(mTlsStruct));
118    mExit = false;
119#ifndef RS_COMPATIBILITY_LIB
120    mLinkRuntimeCallback = NULL;
121    mSelectRTCallback = NULL;
122    mSetupCompilerCallback = NULL;
123#endif
124}
125
126
127void * RsdCpuReferenceImpl::helperThreadProc(void *vrsc) {
128    RsdCpuReferenceImpl *dc = (RsdCpuReferenceImpl *)vrsc;
129
130    uint32_t idx = __sync_fetch_and_add(&dc->mWorkers.mLaunchCount, 1);
131
132    //ALOGV("RS helperThread starting %p idx=%i", dc, idx);
133
134    dc->mWorkers.mLaunchSignals[idx].init();
135    dc->mWorkers.mNativeThreadId[idx] = gettid();
136
137    memset(&dc->mTlsStruct, 0, sizeof(dc->mTlsStruct));
138    int status = pthread_setspecific(gThreadTLSKey, &dc->mTlsStruct);
139    if (status) {
140        ALOGE("pthread_setspecific %i", status);
141    }
142
143#if 0
144    typedef struct {uint64_t bits[1024 / 64]; } cpu_set_t;
145    cpu_set_t cpuset;
146    memset(&cpuset, 0, sizeof(cpuset));
147    cpuset.bits[idx / 64] |= 1ULL << (idx % 64);
148    int ret = syscall(241, rsc->mWorkers.mNativeThreadId[idx],
149              sizeof(cpuset), &cpuset);
150    ALOGE("SETAFFINITY ret = %i %s", ret, EGLUtils::strerror(ret));
151#endif
152
153    while (!dc->mExit) {
154        dc->mWorkers.mLaunchSignals[idx].wait();
155        if (dc->mWorkers.mLaunchCallback) {
156           // idx +1 is used because the calling thread is always worker 0.
157           dc->mWorkers.mLaunchCallback(dc->mWorkers.mLaunchData, idx+1);
158        }
159        __sync_fetch_and_sub(&dc->mWorkers.mRunningCount, 1);
160        dc->mWorkers.mCompleteSignal.set();
161    }
162
163    //ALOGV("RS helperThread exited %p idx=%i", dc, idx);
164    return NULL;
165}
166
167void RsdCpuReferenceImpl::launchThreads(WorkerCallback_t cbk, void *data) {
168    mWorkers.mLaunchData = data;
169    mWorkers.mLaunchCallback = cbk;
170
171    // fast path for very small launches
172    MTLaunchStruct *mtls = (MTLaunchStruct *)data;
173    if (mtls && mtls->fep.dimY <= 1 && mtls->xEnd <= mtls->xStart + mtls->mSliceSize) {
174        if (mWorkers.mLaunchCallback) {
175            mWorkers.mLaunchCallback(mWorkers.mLaunchData, 0);
176        }
177        return;
178    }
179
180    mWorkers.mRunningCount = mWorkers.mCount;
181    __sync_synchronize();
182
183    for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
184        mWorkers.mLaunchSignals[ct].set();
185    }
186
187    // We use the calling thread as one of the workers so we can start without
188    // the delay of the thread wakeup.
189    if (mWorkers.mLaunchCallback) {
190        mWorkers.mLaunchCallback(mWorkers.mLaunchData, 0);
191    }
192
193    while (__sync_fetch_and_or(&mWorkers.mRunningCount, 0) != 0) {
194        mWorkers.mCompleteSignal.wait();
195    }
196}
197
198
199void RsdCpuReferenceImpl::lockMutex() {
200    pthread_mutex_lock(&gInitMutex);
201}
202
203void RsdCpuReferenceImpl::unlockMutex() {
204    pthread_mutex_unlock(&gInitMutex);
205}
206
207#if defined(ARCH_ARM_HAVE_VFP) || defined(ARCH_X86_HAVE_SSSE3)
208static int
209read_file(const char*  pathname, char*  buffer, size_t  buffsize)
210{
211    int  fd, len;
212
213    fd = open(pathname, O_RDONLY);
214    if (fd < 0)
215        return -1;
216
217    do {
218        len = read(fd, buffer, buffsize);
219    } while (len < 0 && errno == EINTR);
220
221    close(fd);
222
223    return len;
224}
225
226static void GetCpuInfo() {
227    char cpuinfo[4096];
228    int  cpuinfo_len;
229
230    cpuinfo_len = read_file("/proc/cpuinfo", cpuinfo, sizeof cpuinfo);
231    if (cpuinfo_len < 0)  /* should not happen */ {
232        return;
233    }
234
235#if defined(ARCH_ARM_HAVE_VFP)
236    gArchUseSIMD = !!strstr(cpuinfo, " neon");
237#elif defined(ARCH_X86_HAVE_SSSE3)
238    gArchUseSIMD = !!strstr(cpuinfo, " ssse3");
239#endif
240}
241#endif // ARCH_ARM_HAVE_VFP || ARCH_X86_HAVE_SSSE3
242
243bool RsdCpuReferenceImpl::init(uint32_t version_major, uint32_t version_minor,
244                               sym_lookup_t lfn, script_lookup_t slfn) {
245
246    mSymLookupFn = lfn;
247    mScriptLookupFn = slfn;
248
249    lockMutex();
250    if (!gThreadTLSKeyCount) {
251        int status = pthread_key_create(&gThreadTLSKey, NULL);
252        if (status) {
253            ALOGE("Failed to init thread tls key.");
254            unlockMutex();
255            return false;
256        }
257    }
258    gThreadTLSKeyCount++;
259    unlockMutex();
260
261    mTlsStruct.mContext = mRSC;
262    mTlsStruct.mScript = NULL;
263    int status = pthread_setspecific(gThreadTLSKey, &mTlsStruct);
264    if (status) {
265        ALOGE("pthread_setspecific %i", status);
266    }
267
268#if defined(ARCH_ARM_HAVE_VFP) || defined(ARCH_X86_HAVE_SSSE3)
269    GetCpuInfo();
270#endif
271
272    int cpu = sysconf(_SC_NPROCESSORS_ONLN);
273    if(mRSC->props.mDebugMaxThreads) {
274        cpu = mRSC->props.mDebugMaxThreads;
275    }
276    if (cpu < 2) {
277        mWorkers.mCount = 0;
278        return true;
279    }
280
281    // Subtract one from the cpu count because we also use the command thread as a worker.
282    mWorkers.mCount = (uint32_t)(cpu - 1);
283
284    ALOGV("%p Launching thread(s), CPUs %i", mRSC, mWorkers.mCount + 1);
285
286    mWorkers.mThreadId = (pthread_t *) calloc(mWorkers.mCount, sizeof(pthread_t));
287    mWorkers.mNativeThreadId = (pid_t *) calloc(mWorkers.mCount, sizeof(pid_t));
288    mWorkers.mLaunchSignals = new Signal[mWorkers.mCount];
289    mWorkers.mLaunchCallback = NULL;
290
291    mWorkers.mCompleteSignal.init();
292
293    mWorkers.mRunningCount = mWorkers.mCount;
294    mWorkers.mLaunchCount = 0;
295    __sync_synchronize();
296
297    pthread_attr_t threadAttr;
298    status = pthread_attr_init(&threadAttr);
299    if (status) {
300        ALOGE("Failed to init thread attribute.");
301        return false;
302    }
303
304    for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
305        status = pthread_create(&mWorkers.mThreadId[ct], &threadAttr, helperThreadProc, this);
306        if (status) {
307            mWorkers.mCount = ct;
308            ALOGE("Created fewer than expected number of RS threads.");
309            break;
310        }
311    }
312    while (__sync_fetch_and_or(&mWorkers.mRunningCount, 0) != 0) {
313        usleep(100);
314    }
315
316    pthread_attr_destroy(&threadAttr);
317    return true;
318}
319
320
321void RsdCpuReferenceImpl::setPriority(int32_t priority) {
322    for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
323        setpriority(PRIO_PROCESS, mWorkers.mNativeThreadId[ct], priority);
324    }
325}
326
327RsdCpuReferenceImpl::~RsdCpuReferenceImpl() {
328    mExit = true;
329    mWorkers.mLaunchData = NULL;
330    mWorkers.mLaunchCallback = NULL;
331    mWorkers.mRunningCount = mWorkers.mCount;
332    __sync_synchronize();
333    for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
334        mWorkers.mLaunchSignals[ct].set();
335    }
336    void *res;
337    for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
338        pthread_join(mWorkers.mThreadId[ct], &res);
339    }
340    rsAssert(__sync_fetch_and_or(&mWorkers.mRunningCount, 0) == 0);
341    free(mWorkers.mThreadId);
342    free(mWorkers.mNativeThreadId);
343    delete[] mWorkers.mLaunchSignals;
344
345    // Global structure cleanup.
346    lockMutex();
347    --gThreadTLSKeyCount;
348    if (!gThreadTLSKeyCount) {
349        pthread_key_delete(gThreadTLSKey);
350    }
351    unlockMutex();
352
353}
354
355typedef void (*rs_t)(const void *, void *, const void *, uint32_t, uint32_t, uint32_t, uint32_t);
356
357static void wc_xy(void *usr, uint32_t idx) {
358    MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
359    RsForEachStubParamStruct p;
360    memcpy(&p, &mtls->fep, sizeof(p));
361    p.lid = idx;
362    uint32_t sig = mtls->sig;
363
364    outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
365    while (1) {
366        uint32_t slice = (uint32_t)__sync_fetch_and_add(&mtls->mSliceNum, 1);
367        uint32_t yStart = mtls->yStart + slice * mtls->mSliceSize;
368        uint32_t yEnd = yStart + mtls->mSliceSize;
369        yEnd = rsMin(yEnd, mtls->yEnd);
370        if (yEnd <= yStart) {
371            return;
372        }
373
374        //ALOGE("usr idx %i, x %i,%i  y %i,%i", idx, mtls->xStart, mtls->xEnd, yStart, yEnd);
375        //ALOGE("usr ptr in %p,  out %p", mtls->fep.ptrIn, mtls->fep.ptrOut);
376
377        for (p.y = yStart; p.y < yEnd; p.y++) {
378            p.out = mtls->fep.ptrOut + (mtls->fep.yStrideOut * p.y) +
379                    (mtls->fep.eStrideOut * mtls->xStart);
380            p.in = mtls->fep.ptrIn + (mtls->fep.yStrideIn * p.y) +
381                   (mtls->fep.eStrideIn * mtls->xStart);
382            fn(&p, mtls->xStart, mtls->xEnd, mtls->fep.eStrideIn, mtls->fep.eStrideOut);
383        }
384    }
385}
386
387static void wc_x(void *usr, uint32_t idx) {
388    MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
389    RsForEachStubParamStruct p;
390    memcpy(&p, &mtls->fep, sizeof(p));
391    p.lid = idx;
392    uint32_t sig = mtls->sig;
393
394    outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
395    while (1) {
396        uint32_t slice = (uint32_t)__sync_fetch_and_add(&mtls->mSliceNum, 1);
397        uint32_t xStart = mtls->xStart + slice * mtls->mSliceSize;
398        uint32_t xEnd = xStart + mtls->mSliceSize;
399        xEnd = rsMin(xEnd, mtls->xEnd);
400        if (xEnd <= xStart) {
401            return;
402        }
403
404        //ALOGE("usr slice %i idx %i, x %i,%i", slice, idx, xStart, xEnd);
405        //ALOGE("usr ptr in %p,  out %p", mtls->fep.ptrIn, mtls->fep.ptrOut);
406
407        p.out = mtls->fep.ptrOut + (mtls->fep.eStrideOut * xStart);
408        p.in = mtls->fep.ptrIn + (mtls->fep.eStrideIn * xStart);
409        fn(&p, xStart, xEnd, mtls->fep.eStrideIn, mtls->fep.eStrideOut);
410    }
411}
412
413void RsdCpuReferenceImpl::launchThreads(const Allocation * ain, Allocation * aout,
414                                     const RsScriptCall *sc, MTLaunchStruct *mtls) {
415
416    //android::StopWatch kernel_time("kernel time");
417
418    if ((mWorkers.mCount >= 1) && mtls->isThreadable && !mInForEach) {
419        const size_t targetByteChunk = 16 * 1024;
420        mInForEach = true;
421        if (mtls->fep.dimY > 1) {
422            uint32_t s1 = mtls->fep.dimY / ((mWorkers.mCount + 1) * 4);
423            uint32_t s2 = 0;
424
425            // This chooses our slice size to rate limit atomic ops to
426            // one per 16k bytes of reads/writes.
427            if (mtls->fep.yStrideOut) {
428                s2 = targetByteChunk / mtls->fep.yStrideOut;
429            } else {
430                s2 = targetByteChunk / mtls->fep.yStrideIn;
431            }
432            mtls->mSliceSize = rsMin(s1, s2);
433
434            if(mtls->mSliceSize < 1) {
435                mtls->mSliceSize = 1;
436            }
437
438         //   mtls->mSliceSize = 2;
439            launchThreads(wc_xy, mtls);
440        } else {
441            uint32_t s1 = mtls->fep.dimX / ((mWorkers.mCount + 1) * 4);
442            uint32_t s2 = 0;
443
444            // This chooses our slice size to rate limit atomic ops to
445            // one per 16k bytes of reads/writes.
446            if (mtls->fep.eStrideOut) {
447                s2 = targetByteChunk / mtls->fep.eStrideOut;
448            } else {
449                s2 = targetByteChunk / mtls->fep.eStrideIn;
450            }
451            mtls->mSliceSize = rsMin(s1, s2);
452
453            if(mtls->mSliceSize < 1) {
454                mtls->mSliceSize = 1;
455            }
456
457            launchThreads(wc_x, mtls);
458        }
459        mInForEach = false;
460
461        //ALOGE("launch 1");
462    } else {
463        RsForEachStubParamStruct p;
464        memcpy(&p, &mtls->fep, sizeof(p));
465        uint32_t sig = mtls->sig;
466
467        //ALOGE("launch 3");
468        outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
469        for (p.ar[0] = mtls->arrayStart; p.ar[0] < mtls->arrayEnd; p.ar[0]++) {
470            for (p.z = mtls->zStart; p.z < mtls->zEnd; p.z++) {
471                for (p.y = mtls->yStart; p.y < mtls->yEnd; p.y++) {
472                    uint32_t offset = mtls->fep.dimY * mtls->fep.dimZ * p.ar[0] +
473                                      mtls->fep.dimY * p.z + p.y;
474                    p.out = mtls->fep.ptrOut + (mtls->fep.yStrideOut * offset) +
475                            (mtls->fep.eStrideOut * mtls->xStart);
476                    p.in = mtls->fep.ptrIn + (mtls->fep.yStrideIn * offset) +
477                           (mtls->fep.eStrideIn * mtls->xStart);
478                    fn(&p, mtls->xStart, mtls->xEnd, mtls->fep.eStrideIn, mtls->fep.eStrideOut);
479                }
480            }
481        }
482    }
483}
484
485RsdCpuScriptImpl * RsdCpuReferenceImpl::setTLS(RsdCpuScriptImpl *sc) {
486    //ALOGE("setTls %p", sc);
487    ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(gThreadTLSKey);
488    rsAssert(tls);
489    RsdCpuScriptImpl *old = tls->mImpl;
490    tls->mImpl = sc;
491    tls->mContext = mRSC;
492    if (sc) {
493        tls->mScript = sc->getScript();
494    } else {
495        tls->mScript = NULL;
496    }
497    return old;
498}
499
500const RsdCpuReference::CpuSymbol * RsdCpuReferenceImpl::symLookup(const char *name) {
501    return mSymLookupFn(mRSC, name);
502}
503
504
505RsdCpuReference::CpuScript * RsdCpuReferenceImpl::createScript(const ScriptC *s,
506                                    char const *resName, char const *cacheDir,
507                                    uint8_t const *bitcode, size_t bitcodeSize,
508                                    uint32_t flags) {
509
510    RsdCpuScriptImpl *i = new RsdCpuScriptImpl(this, s);
511    if (!i->init(resName, cacheDir, bitcode, bitcodeSize, flags
512#ifndef RS_COMPATIBILITY_LIB
513        , getBccPluginName()
514#endif
515        )) {
516        delete i;
517        return NULL;
518    }
519    return i;
520}
521
522extern RsdCpuScriptImpl * rsdIntrinsic_3DLUT(RsdCpuReferenceImpl *ctx,
523                                             const Script *s, const Element *e);
524extern RsdCpuScriptImpl * rsdIntrinsic_Convolve3x3(RsdCpuReferenceImpl *ctx,
525                                                   const Script *s, const Element *e);
526extern RsdCpuScriptImpl * rsdIntrinsic_ColorMatrix(RsdCpuReferenceImpl *ctx,
527                                                   const Script *s, const Element *e);
528extern RsdCpuScriptImpl * rsdIntrinsic_LUT(RsdCpuReferenceImpl *ctx,
529                                           const Script *s, const Element *e);
530extern RsdCpuScriptImpl * rsdIntrinsic_Convolve5x5(RsdCpuReferenceImpl *ctx,
531                                                   const Script *s, const Element *e);
532extern RsdCpuScriptImpl * rsdIntrinsic_Blur(RsdCpuReferenceImpl *ctx,
533                                            const Script *s, const Element *e);
534extern RsdCpuScriptImpl * rsdIntrinsic_YuvToRGB(RsdCpuReferenceImpl *ctx,
535                                                const Script *s, const Element *e);
536extern RsdCpuScriptImpl * rsdIntrinsic_Blend(RsdCpuReferenceImpl *ctx,
537                                             const Script *s, const Element *e);
538extern RsdCpuScriptImpl * rsdIntrinsic_Histogram(RsdCpuReferenceImpl *ctx,
539                                                 const Script *s, const Element *e);
540extern RsdCpuScriptImpl * rsdIntrinsic_LoopFilter(RsdCpuReferenceImpl *ctx,
541                                                  const Script *s, const Element *e);
542extern RsdCpuScriptImpl * rsdIntrinsic_Resize(RsdCpuReferenceImpl *ctx,
543                                              const Script *s, const Element *e);
544
545RsdCpuReference::CpuScript * RsdCpuReferenceImpl::createIntrinsic(const Script *s,
546                                    RsScriptIntrinsicID iid, Element *e) {
547
548    RsdCpuScriptImpl *i = NULL;
549    switch (iid) {
550    case RS_SCRIPT_INTRINSIC_ID_3DLUT:
551        i = rsdIntrinsic_3DLUT(this, s, e);
552        break;
553    case RS_SCRIPT_INTRINSIC_ID_CONVOLVE_3x3:
554        i = rsdIntrinsic_Convolve3x3(this, s, e);
555        break;
556    case RS_SCRIPT_INTRINSIC_ID_COLOR_MATRIX:
557        i = rsdIntrinsic_ColorMatrix(this, s, e);
558        break;
559    case RS_SCRIPT_INTRINSIC_ID_LUT:
560        i = rsdIntrinsic_LUT(this, s, e);
561        break;
562    case RS_SCRIPT_INTRINSIC_ID_CONVOLVE_5x5:
563        i = rsdIntrinsic_Convolve5x5(this, s, e);
564        break;
565    case RS_SCRIPT_INTRINSIC_ID_BLUR:
566        i = rsdIntrinsic_Blur(this, s, e);
567        break;
568    case RS_SCRIPT_INTRINSIC_ID_YUV_TO_RGB:
569        i = rsdIntrinsic_YuvToRGB(this, s, e);
570        break;
571    case RS_SCRIPT_INTRINSIC_ID_BLEND:
572        i = rsdIntrinsic_Blend(this, s, e);
573        break;
574    case RS_SCRIPT_INTRINSIC_ID_HISTOGRAM:
575        i = rsdIntrinsic_Histogram(this, s, e);
576        break;
577    case RS_SCRIPT_INTRINSIC_ID_RESIZE:
578        i = rsdIntrinsic_Resize(this, s, e);
579        break;
580#ifndef RS_COMPATIBILITY_LIB
581    case RS_SCRIPT_INTRINSIC_ID_LOOP_FILTER:
582        i = rsdIntrinsic_LoopFilter(this, s, e);
583        break;
584#endif
585
586    default:
587        rsAssert(0);
588    }
589
590    return i;
591}
592
593RsdCpuReference::CpuScriptGroup * RsdCpuReferenceImpl::createScriptGroup(const ScriptGroup *sg) {
594    CpuScriptGroupImpl *sgi = new CpuScriptGroupImpl(this, sg);
595    if (!sgi->init()) {
596        delete sgi;
597        return NULL;
598    }
599    return sgi;
600}
601
602
603