rsdBcc.cpp revision 0db650c7aff639f24e9c6a651abd4539cb943609 
1/*
2 * Copyright (C) 2011-2012 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 "rsdCore.h"
18#include "rsdBcc.h"
19#include "rsdRuntime.h"
20#include "rsdAllocation.h"
21
22#include <bcinfo/MetadataExtractor.h>
23
24#include "rsContext.h"
25#include "rsElement.h"
26#include "rsScriptC.h"
27
28#include "utils/Timers.h"
29#include "utils/StopWatch.h"
30
31using namespace android;
32using namespace android::renderscript;
33
34struct DrvScript {
35    int (*mRoot)();
36    int (*mRootExpand)();
37    void (*mInit)();
38    void (*mFreeChildren)();
39
40    BCCScriptRef mBccScript;
41
42    bcinfo::MetadataExtractor *ME;
43
44    InvokeFunc_t *mInvokeFunctions;
45    ForEachFunc_t *mForEachFunctions;
46    void ** mFieldAddress;
47    bool * mFieldIsObject;
48    const uint32_t *mExportForEachSignatureList;
49
50    const uint8_t * mScriptText;
51    uint32_t mScriptTextLength;
52    Allocation **mBoundAllocs;
53};
54
55typedef void (*outer_foreach_t)(
56    const android::renderscript::RsForEachStubParamStruct *,
57    uint32_t x1, uint32_t x2,
58    uint32_t instep, uint32_t outstep);
59
60static Script * setTLS(Script *sc) {
61    ScriptTLSStruct * tls = (ScriptTLSStruct *)pthread_getspecific(rsdgThreadTLSKey);
62    rsAssert(tls);
63    Script *old = tls->mScript;
64    tls->mScript = sc;
65    return old;
66}
67
68
69bool rsdScriptInit(const Context *rsc,
70                     ScriptC *script,
71                     char const *resName,
72                     char const *cacheDir,
73                     uint8_t const *bitcode,
74                     size_t bitcodeSize,
75                     uint32_t flags) {
76    //ALOGE("rsdScriptCreate %p %p %p %p %i %i %p", rsc, resName, cacheDir, bitcode, bitcodeSize, flags, lookupFunc);
77
78    pthread_mutex_lock(&rsdgInitMutex);
79
80    size_t exportFuncCount = 0;
81    size_t exportVarCount = 0;
82    size_t objectSlotCount = 0;
83    size_t exportForEachSignatureCount = 0;
84
85    const char* coreLib = "/system/lib/libclcore.bc";
86    bcinfo::RSFloatPrecision prec;
87
88    DrvScript *drv = (DrvScript *)calloc(1, sizeof(DrvScript));
89    if (drv == NULL) {
90        goto error;
91    }
92    script->mHal.drv = drv;
93
94    drv->mBccScript = bccCreateScript();
95    script->mHal.info.isThreadable = true;
96    drv->mScriptText = bitcode;
97    drv->mScriptTextLength = bitcodeSize;
98
99
100    drv->ME = new bcinfo::MetadataExtractor((const char*)drv->mScriptText,
101                                            drv->mScriptTextLength);
102    if (!drv->ME->extract()) {
103      ALOGE("bcinfo: failed to read script metadata");
104      goto error;
105    }
106
107    //ALOGE("mBccScript %p", script->mBccScript);
108
109    if (bccRegisterSymbolCallback(drv->mBccScript, &rsdLookupRuntimeStub, script) != 0) {
110        ALOGE("bcc: FAILS to register symbol callback");
111        goto error;
112    }
113
114    if (bccReadBC(drv->mBccScript,
115                  resName,
116                  (char const *)drv->mScriptText,
117                  drv->mScriptTextLength, 0) != 0) {
118        ALOGE("bcc: FAILS to read bitcode");
119        goto error;
120    }
121
122    // NEON-capable devices can use an accelerated math library for all
123    // reduced precision scripts.
124#if defined(ARCH_ARM_HAVE_NEON)
125    prec = drv->ME->getRSFloatPrecision();
126    if (prec != bcinfo::RS_FP_Full) {
127        coreLib = "/system/lib/libclcore_neon.bc";
128    }
129#endif
130
131    if (bccLinkFile(drv->mBccScript, coreLib, 0) != 0) {
132        ALOGE("bcc: FAILS to link bitcode");
133        goto error;
134    }
135
136    if (bccPrepareExecutable(drv->mBccScript, cacheDir, resName, 0) != 0) {
137        ALOGE("bcc: FAILS to prepare executable");
138        goto error;
139    }
140
141    drv->mRoot = reinterpret_cast<int (*)()>(bccGetFuncAddr(drv->mBccScript, "root"));
142    drv->mRootExpand = reinterpret_cast<int (*)()>(bccGetFuncAddr(drv->mBccScript, "root.expand"));
143    drv->mInit = reinterpret_cast<void (*)()>(bccGetFuncAddr(drv->mBccScript, "init"));
144    drv->mFreeChildren = reinterpret_cast<void (*)()>(bccGetFuncAddr(drv->mBccScript, ".rs.dtor"));
145
146    exportFuncCount = drv->ME->getExportFuncCount();
147    if (exportFuncCount > 0) {
148        drv->mInvokeFunctions = (InvokeFunc_t*) calloc(exportFuncCount,
149                                                       sizeof(InvokeFunc_t));
150        bccGetExportFuncList(drv->mBccScript, exportFuncCount,
151                             (void **) drv->mInvokeFunctions);
152    } else {
153        drv->mInvokeFunctions = NULL;
154    }
155
156    exportVarCount = drv->ME->getExportVarCount();
157    if (exportVarCount > 0) {
158        drv->mFieldAddress = (void **) calloc(exportVarCount, sizeof(void*));
159        drv->mFieldIsObject = (bool *) calloc(exportVarCount, sizeof(bool));
160        bccGetExportVarList(drv->mBccScript, exportVarCount,
161                            (void **) drv->mFieldAddress);
162    } else {
163        drv->mFieldAddress = NULL;
164        drv->mFieldIsObject = NULL;
165    }
166
167    objectSlotCount = drv->ME->getObjectSlotCount();
168    if (objectSlotCount > 0) {
169        const uint32_t *objectSlotList = drv->ME->getObjectSlotList();
170        for (uint32_t ct=0; ct < objectSlotCount; ct++) {
171            drv->mFieldIsObject[objectSlotList[ct]] = true;
172        }
173    }
174
175    exportForEachSignatureCount = drv->ME->getExportForEachSignatureCount();
176    drv->mExportForEachSignatureList = drv->ME->getExportForEachSignatureList();
177    if (exportForEachSignatureCount > 0) {
178        drv->mForEachFunctions =
179            (ForEachFunc_t*) calloc(exportForEachSignatureCount,
180                                    sizeof(ForEachFunc_t));
181        bccGetExportForEachList(drv->mBccScript, exportForEachSignatureCount,
182                                (void **) drv->mForEachFunctions);
183    } else {
184        drv->mForEachFunctions = NULL;
185    }
186
187    // Copy info over to runtime
188    script->mHal.info.exportedFunctionCount = drv->ME->getExportFuncCount();
189    script->mHal.info.exportedVariableCount = drv->ME->getExportVarCount();
190    script->mHal.info.exportedPragmaCount = drv->ME->getPragmaCount();
191    script->mHal.info.exportedPragmaKeyList = drv->ME->getPragmaKeyList();
192    script->mHal.info.exportedPragmaValueList = drv->ME->getPragmaValueList();
193
194    if (drv->mRootExpand) {
195      script->mHal.info.root = drv->mRootExpand;
196    } else {
197      script->mHal.info.root = drv->mRoot;
198    }
199
200    if (script->mHal.info.exportedVariableCount) {
201        drv->mBoundAllocs = new Allocation *[script->mHal.info.exportedVariableCount];
202        memset(drv->mBoundAllocs, 0, sizeof(void *) * script->mHal.info.exportedVariableCount);
203    }
204
205    pthread_mutex_unlock(&rsdgInitMutex);
206    return true;
207
208error:
209
210    pthread_mutex_unlock(&rsdgInitMutex);
211    if (drv) {
212        if (drv->ME) {
213            delete drv->ME;
214            drv->ME = NULL;
215        }
216        delete[] drv->mBoundAllocs;
217    }
218    free(drv);
219    return false;
220
221}
222
223typedef struct {
224    Context *rsc;
225    Script *script;
226    ForEachFunc_t kernel;
227    uint32_t sig;
228    const Allocation * ain;
229    Allocation * aout;
230    const void * usr;
231    size_t usrLen;
232
233    uint32_t mSliceSize;
234    volatile int mSliceNum;
235
236    const uint8_t *ptrIn;
237    uint32_t eStrideIn;
238    uint8_t *ptrOut;
239    uint32_t eStrideOut;
240
241    uint32_t yStrideIn;
242    uint32_t yStrideOut;
243
244    uint32_t xStart;
245    uint32_t xEnd;
246    uint32_t yStart;
247    uint32_t yEnd;
248    uint32_t zStart;
249    uint32_t zEnd;
250    uint32_t arrayStart;
251    uint32_t arrayEnd;
252
253    uint32_t dimX;
254    uint32_t dimY;
255    uint32_t dimZ;
256    uint32_t dimArray;
257} MTLaunchStruct;
258typedef void (*rs_t)(const void *, void *, const void *, uint32_t, uint32_t, uint32_t, uint32_t);
259
260static void wc_xy(void *usr, uint32_t idx) {
261    MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
262    RsForEachStubParamStruct p;
263    memset(&p, 0, sizeof(p));
264    p.usr = mtls->usr;
265    p.usr_len = mtls->usrLen;
266    RsdHal * dc = (RsdHal *)mtls->rsc->mHal.drv;
267    uint32_t sig = mtls->sig;
268
269    outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
270    while (1) {
271        uint32_t slice = (uint32_t)android_atomic_inc(&mtls->mSliceNum);
272        uint32_t yStart = mtls->yStart + slice * mtls->mSliceSize;
273        uint32_t yEnd = yStart + mtls->mSliceSize;
274        yEnd = rsMin(yEnd, mtls->yEnd);
275        if (yEnd <= yStart) {
276            return;
277        }
278
279        //ALOGE("usr idx %i, x %i,%i  y %i,%i", idx, mtls->xStart, mtls->xEnd, yStart, yEnd);
280        //ALOGE("usr ptr in %p,  out %p", mtls->ptrIn, mtls->ptrOut);
281        for (p.y = yStart; p.y < yEnd; p.y++) {
282            p.out = mtls->ptrOut + (mtls->yStrideOut * p.y);
283            p.in = mtls->ptrIn + (mtls->yStrideIn * p.y);
284            fn(&p, mtls->xStart, mtls->xEnd, mtls->eStrideIn, mtls->eStrideOut);
285        }
286    }
287}
288
289static void wc_x(void *usr, uint32_t idx) {
290    MTLaunchStruct *mtls = (MTLaunchStruct *)usr;
291    RsForEachStubParamStruct p;
292    memset(&p, 0, sizeof(p));
293    p.usr = mtls->usr;
294    p.usr_len = mtls->usrLen;
295    RsdHal * dc = (RsdHal *)mtls->rsc->mHal.drv;
296    uint32_t sig = mtls->sig;
297
298    outer_foreach_t fn = (outer_foreach_t) mtls->kernel;
299    while (1) {
300        uint32_t slice = (uint32_t)android_atomic_inc(&mtls->mSliceNum);
301        uint32_t xStart = mtls->xStart + slice * mtls->mSliceSize;
302        uint32_t xEnd = xStart + mtls->mSliceSize;
303        xEnd = rsMin(xEnd, mtls->xEnd);
304        if (xEnd <= xStart) {
305            return;
306        }
307
308        //ALOGE("usr slice %i idx %i, x %i,%i", slice, idx, xStart, xEnd);
309        //ALOGE("usr ptr in %p,  out %p", mtls->ptrIn, mtls->ptrOut);
310
311        p.out = mtls->ptrOut + (mtls->eStrideOut * xStart);
312        p.in = mtls->ptrIn + (mtls->eStrideIn * xStart);
313        fn(&p, xStart, xEnd, mtls->eStrideIn, mtls->eStrideOut);
314    }
315}
316
317void rsdScriptInvokeForEach(const Context *rsc,
318                            Script *s,
319                            uint32_t slot,
320                            const Allocation * ain,
321                            Allocation * aout,
322                            const void * usr,
323                            uint32_t usrLen,
324                            const RsScriptCall *sc) {
325
326    RsdHal * dc = (RsdHal *)rsc->mHal.drv;
327
328    MTLaunchStruct mtls;
329    memset(&mtls, 0, sizeof(mtls));
330
331    DrvScript *drv = (DrvScript *)s->mHal.drv;
332    mtls.kernel = drv->mForEachFunctions[slot];
333    rsAssert(mtls.kernel != NULL);
334    mtls.sig = 0x1f;  // temp fix for old apps, full table in slang_rs_export_foreach.cpp
335    if (drv->mExportForEachSignatureList) {
336        mtls.sig = drv->mExportForEachSignatureList[slot];
337    }
338    if (ain) {
339        mtls.dimX = ain->getType()->getDimX();
340        mtls.dimY = ain->getType()->getDimY();
341        mtls.dimZ = ain->getType()->getDimZ();
342        //mtls.dimArray = ain->getType()->getDimArray();
343    } else if (aout) {
344        mtls.dimX = aout->getType()->getDimX();
345        mtls.dimY = aout->getType()->getDimY();
346        mtls.dimZ = aout->getType()->getDimZ();
347        //mtls.dimArray = aout->getType()->getDimArray();
348    } else {
349        rsc->setError(RS_ERROR_BAD_SCRIPT, "rsForEach called with null allocations");
350        return;
351    }
352
353    if (!sc || (sc->xEnd == 0)) {
354        mtls.xEnd = mtls.dimX;
355    } else {
356        rsAssert(sc->xStart < mtls.dimX);
357        rsAssert(sc->xEnd <= mtls.dimX);
358        rsAssert(sc->xStart < sc->xEnd);
359        mtls.xStart = rsMin(mtls.dimX, sc->xStart);
360        mtls.xEnd = rsMin(mtls.dimX, sc->xEnd);
361        if (mtls.xStart >= mtls.xEnd) return;
362    }
363
364    if (!sc || (sc->yEnd == 0)) {
365        mtls.yEnd = mtls.dimY;
366    } else {
367        rsAssert(sc->yStart < mtls.dimY);
368        rsAssert(sc->yEnd <= mtls.dimY);
369        rsAssert(sc->yStart < sc->yEnd);
370        mtls.yStart = rsMin(mtls.dimY, sc->yStart);
371        mtls.yEnd = rsMin(mtls.dimY, sc->yEnd);
372        if (mtls.yStart >= mtls.yEnd) return;
373    }
374
375    mtls.xEnd = rsMax((uint32_t)1, mtls.xEnd);
376    mtls.yEnd = rsMax((uint32_t)1, mtls.yEnd);
377    mtls.zEnd = rsMax((uint32_t)1, mtls.zEnd);
378    mtls.arrayEnd = rsMax((uint32_t)1, mtls.arrayEnd);
379
380    rsAssert(!ain || (ain->getType()->getDimZ() == 0));
381
382    Context *mrsc = (Context *)rsc;
383    Script * oldTLS = setTLS(s);
384
385    mtls.rsc = mrsc;
386    mtls.ain = ain;
387    mtls.aout = aout;
388    mtls.script = s;
389    mtls.usr = usr;
390    mtls.usrLen = usrLen;
391    mtls.mSliceSize = 10;
392    mtls.mSliceNum = 0;
393
394    mtls.ptrIn = NULL;
395    mtls.eStrideIn = 0;
396    if (ain) {
397        DrvAllocation *aindrv = (DrvAllocation *)ain->mHal.drv;
398        mtls.ptrIn = (const uint8_t *)aindrv->lod[0].mallocPtr;
399        mtls.eStrideIn = ain->getType()->getElementSizeBytes();
400        mtls.yStrideIn = aindrv->lod[0].stride;
401    }
402
403    mtls.ptrOut = NULL;
404    mtls.eStrideOut = 0;
405    if (aout) {
406        DrvAllocation *aoutdrv = (DrvAllocation *)aout->mHal.drv;
407        mtls.ptrOut = (uint8_t *)aoutdrv->lod[0].mallocPtr;
408        mtls.eStrideOut = aout->getType()->getElementSizeBytes();
409        mtls.yStrideOut = aoutdrv->lod[0].stride;
410    }
411
412    if ((dc->mWorkers.mCount > 1) && s->mHal.info.isThreadable && !dc->mInForEach) {
413        dc->mInForEach = true;
414        if (mtls.dimY > 1) {
415            rsdLaunchThreads(mrsc, wc_xy, &mtls);
416        } else {
417            rsdLaunchThreads(mrsc, wc_x, &mtls);
418        }
419        dc->mInForEach = false;
420
421        //ALOGE("launch 1");
422    } else {
423        RsForEachStubParamStruct p;
424        memset(&p, 0, sizeof(p));
425        p.usr = mtls.usr;
426        p.usr_len = mtls.usrLen;
427        uint32_t sig = mtls.sig;
428
429        //ALOGE("launch 3");
430        outer_foreach_t fn = (outer_foreach_t) mtls.kernel;
431        for (p.ar[0] = mtls.arrayStart; p.ar[0] < mtls.arrayEnd; p.ar[0]++) {
432            for (p.z = mtls.zStart; p.z < mtls.zEnd; p.z++) {
433                for (p.y = mtls.yStart; p.y < mtls.yEnd; p.y++) {
434                    uint32_t offset = mtls.dimX * mtls.dimY * mtls.dimZ * p.ar[0] +
435                                      mtls.dimX * mtls.dimY * p.z +
436                                      mtls.dimX * p.y;
437                    p.out = mtls.ptrOut + (mtls.eStrideOut * offset);
438                    p.in = mtls.ptrIn + (mtls.eStrideIn * offset);
439                    fn(&p, mtls.xStart, mtls.xEnd, mtls.eStrideIn,
440                       mtls.eStrideOut);
441                }
442            }
443        }
444    }
445
446    setTLS(oldTLS);
447}
448
449
450int rsdScriptInvokeRoot(const Context *dc, Script *script) {
451    DrvScript *drv = (DrvScript *)script->mHal.drv;
452
453    Script * oldTLS = setTLS(script);
454    int ret = drv->mRoot();
455    setTLS(oldTLS);
456
457    return ret;
458}
459
460void rsdScriptInvokeInit(const Context *dc, Script *script) {
461    DrvScript *drv = (DrvScript *)script->mHal.drv;
462
463    if (drv->mInit) {
464        drv->mInit();
465    }
466}
467
468void rsdScriptInvokeFreeChildren(const Context *dc, Script *script) {
469    DrvScript *drv = (DrvScript *)script->mHal.drv;
470
471    if (drv->mFreeChildren) {
472        drv->mFreeChildren();
473    }
474}
475
476void rsdScriptInvokeFunction(const Context *dc, Script *script,
477                            uint32_t slot,
478                            const void *params,
479                            size_t paramLength) {
480    DrvScript *drv = (DrvScript *)script->mHal.drv;
481    //ALOGE("invoke %p %p %i %p %i", dc, script, slot, params, paramLength);
482
483    Script * oldTLS = setTLS(script);
484    ((void (*)(const void *, uint32_t))
485        drv->mInvokeFunctions[slot])(params, paramLength);
486    setTLS(oldTLS);
487}
488
489void rsdScriptSetGlobalVar(const Context *dc, const Script *script,
490                           uint32_t slot, void *data, size_t dataLength) {
491    DrvScript *drv = (DrvScript *)script->mHal.drv;
492    //rsAssert(!script->mFieldIsObject[slot]);
493    //ALOGE("setGlobalVar %p %p %i %p %i", dc, script, slot, data, dataLength);
494
495    int32_t *destPtr = ((int32_t **)drv->mFieldAddress)[slot];
496    if (!destPtr) {
497        //ALOGV("Calling setVar on slot = %i which is null", slot);
498        return;
499    }
500
501    memcpy(destPtr, data, dataLength);
502}
503
504void rsdScriptSetGlobalVarWithElemDims(
505        const android::renderscript::Context *dc,
506        const android::renderscript::Script *script,
507        uint32_t slot, void *data, size_t dataLength,
508        const android::renderscript::Element *elem,
509        const size_t *dims, size_t dimLength) {
510    DrvScript *drv = (DrvScript *)script->mHal.drv;
511
512    int32_t *destPtr = ((int32_t **)drv->mFieldAddress)[slot];
513    if (!destPtr) {
514        //ALOGV("Calling setVar on slot = %i which is null", slot);
515        return;
516    }
517
518    // We want to look at dimension in terms of integer components,
519    // but dimLength is given in terms of bytes.
520    dimLength /= sizeof(int);
521
522    // Only a single dimension is currently supported.
523    rsAssert(dimLength == 1);
524    if (dimLength == 1) {
525        // First do the increment loop.
526        size_t stride = elem->getSizeBytes();
527        char *cVal = reinterpret_cast<char *>(data);
528        for (size_t i = 0; i < dims[0]; i++) {
529            elem->incRefs(cVal);
530            cVal += stride;
531        }
532
533        // Decrement loop comes after (to prevent race conditions).
534        char *oldVal = reinterpret_cast<char *>(destPtr);
535        for (size_t i = 0; i < dims[0]; i++) {
536            elem->decRefs(oldVal);
537            oldVal += stride;
538        }
539    }
540
541    memcpy(destPtr, data, dataLength);
542}
543
544void rsdScriptSetGlobalBind(const Context *dc, const Script *script, uint32_t slot, Allocation *data) {
545    DrvScript *drv = (DrvScript *)script->mHal.drv;
546
547    //rsAssert(!script->mFieldIsObject[slot]);
548    //ALOGE("setGlobalBind %p %p %i %p", dc, script, slot, data);
549
550    int32_t *destPtr = ((int32_t **)drv->mFieldAddress)[slot];
551    if (!destPtr) {
552        //ALOGV("Calling setVar on slot = %i which is null", slot);
553        return;
554    }
555
556    void *ptr = NULL;
557    drv->mBoundAllocs[slot] = data;
558    if(data) {
559        DrvAllocation *allocDrv = (DrvAllocation *)data->mHal.drv;
560        ptr = allocDrv->lod[0].mallocPtr;
561    }
562    memcpy(destPtr, &ptr, sizeof(void *));
563}
564
565void rsdScriptSetGlobalObj(const Context *dc, const Script *script, uint32_t slot, ObjectBase *data) {
566    DrvScript *drv = (DrvScript *)script->mHal.drv;
567    //rsAssert(script->mFieldIsObject[slot]);
568    //ALOGE("setGlobalObj %p %p %i %p", dc, script, slot, data);
569
570    int32_t *destPtr = ((int32_t **)drv->mFieldAddress)[slot];
571    if (!destPtr) {
572        //ALOGV("Calling setVar on slot = %i which is null", slot);
573        return;
574    }
575
576    rsrSetObject(dc, script, (ObjectBase **)destPtr, data);
577}
578
579void rsdScriptDestroy(const Context *dc, Script *script) {
580    DrvScript *drv = (DrvScript *)script->mHal.drv;
581
582    if (drv->mFieldAddress) {
583        size_t exportVarCount = drv->ME->getExportVarCount();
584        for (size_t ct = 0; ct < exportVarCount; ct++) {
585            if (drv->mFieldIsObject[ct]) {
586                // The field address can be NULL if the script-side has
587                // optimized the corresponding global variable away.
588                if (drv->mFieldAddress[ct]) {
589                    rsrClearObject(dc, script, (ObjectBase **)drv->mFieldAddress[ct]);
590                }
591            }
592        }
593        free(drv->mFieldAddress);
594        drv->mFieldAddress = NULL;
595        free(drv->mFieldIsObject);
596        drv->mFieldIsObject = NULL;    }
597
598    if (drv->mInvokeFunctions) {
599        free(drv->mInvokeFunctions);
600        drv->mInvokeFunctions = NULL;
601    }
602
603    if (drv->mForEachFunctions) {
604        free(drv->mForEachFunctions);
605        drv->mForEachFunctions = NULL;
606    }
607
608    delete drv->ME;
609    drv->ME = NULL;
610
611    delete[] drv->mBoundAllocs;
612    free(drv);
613    script->mHal.drv = NULL;
614
615}
616
617Allocation * rsdScriptGetAllocationForPointer(const android::renderscript::Context *dc,
618                                              const android::renderscript::Script *sc,
619                                              const void *ptr) {
620    DrvScript *drv = (DrvScript *)sc->mHal.drv;
621    if (!ptr) {
622        return NULL;
623    }
624
625    for (uint32_t ct=0; ct < sc->mHal.info.exportedVariableCount; ct++) {
626        Allocation *a = drv->mBoundAllocs[ct];
627        if (!a) continue;
628        DrvAllocation *adrv = (DrvAllocation *)a->mHal.drv;
629        if (adrv->lod[0].mallocPtr == ptr) {
630            return a;
631        }
632    }
633    ALOGE("rsGetAllocation, failed to find %p", ptr);
634    return NULL;
635}
636
637