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1 /*
2  * Copyright (C) 2009-2012 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 "rsContext.h"
18 #include "rsScriptC.h"
19 
20 #if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
21 #include <bcinfo/BitcodeTranslator.h>
22 #include <bcinfo/BitcodeWrapper.h>
23 #endif
24 
25 #include <sys/stat.h>
26 
27 #include <sstream>
28 #include <string>
29 
30 #ifdef _WIN32
31 /* Define the default path separator for the platform. */
32 #define OS_PATH_SEPARATOR     '\\'
33 #define OS_PATH_SEPARATOR_STR "\\"
34 
35 #else /* not _WIN32 */
36 
37 /* Define the default path separator for the platform. */
38 #define OS_PATH_SEPARATOR     '/'
39 #define OS_PATH_SEPARATOR_STR "/"
40 
41 #endif
42 
43 using android::renderscript::ScriptC;
44 
45 #define GET_TLS()  Context::ScriptTLSStruct * tls = \
46     (Context::ScriptTLSStruct *)pthread_getspecific(Context::gThreadTLSKey); \
47     Context * rsc = tls->mContext; \
48     ScriptC * sc = (ScriptC *) tls->mScript
49 
ScriptC(Context * rsc)50 ScriptC::ScriptC(Context *rsc) : Script(rsc) {
51 }
52 
~ScriptC()53 ScriptC::~ScriptC() {
54     if (mInitialized) {
55         mRSC->mHal.funcs.script.invokeFreeChildren(mRSC, this);
56         mRSC->mHal.funcs.script.destroy(mRSC, this);
57     }
58 }
59 
60 #ifndef RS_COMPATIBILITY_LIB
createCacheDir(const char * cacheDir)61 bool ScriptC::createCacheDir(const char *cacheDir) {
62     std::string currentDir;
63     const std::string cacheDirString(cacheDir);
64 
65     struct stat statBuf;
66     int statReturn = stat(cacheDir, &statBuf);
67     if (!statReturn) {
68         return true;
69     }
70 
71     // Start from the beginning of the cacheDirString.
72     int currPos = 0;
73 
74     // Reserve space in currentDir for the entire cacheDir path.
75     currentDir.reserve(cacheDirString.length());
76 
77     while (currPos >= 0) {
78         /*
79          * The character at currPos should be a path separator.  We need to look
80          * for the next one.
81          */
82         int nextPos = cacheDirString.find(OS_PATH_SEPARATOR_STR, currPos + 1);
83 
84         if (nextPos > 0) {
85             // A new path separator has been found.
86             currentDir += cacheDirString.substr(currPos, nextPos - currPos);
87         } else {
88             // There are no more path separators.
89             currentDir += cacheDirString.substr(currPos);
90         }
91 
92         currPos = nextPos;
93 
94         statReturn = stat(currentDir.c_str(), &statBuf);
95 
96         if (statReturn) {
97             if (errno == ENOENT) {
98                 if (mkdir(currentDir.c_str(), S_IRUSR | S_IWUSR | S_IXUSR)) {
99                     ALOGE("Couldn't create cache directory: %s",
100                           currentDir.c_str());
101                     ALOGE("Error: %s", strerror(errno));
102                     return false;
103                 }
104             } else {
105                 ALOGE("Stat error: %s", strerror(errno));
106                 return false;
107             }
108         }
109     }
110     return true;
111 }
112 #endif
113 
setupScript(Context * rsc)114 void ScriptC::setupScript(Context *rsc) {
115     mEnviroment.mStartTimeMillis
116                 = nanoseconds_to_milliseconds(systemTime(SYSTEM_TIME_MONOTONIC));
117 
118     for (uint32_t ct=0; ct < mHal.info.exportedVariableCount; ct++) {
119         if (mSlots[ct].get() && !mTypes[ct].get()) {
120             mTypes[ct].set(mSlots[ct]->getType());
121         }
122 
123         if (!mTypes[ct].get())
124             continue;
125         rsc->mHal.funcs.script.setGlobalBind(rsc, this, ct, mSlots[ct].get());
126     }
127 }
128 
setupGLState(Context * rsc)129 void ScriptC::setupGLState(Context *rsc) {
130 #if !defined(RS_VENDOR_LIB) && !defined(RS_COMPATIBILITY_LIB)
131     if (mEnviroment.mFragmentStore.get()) {
132         rsc->setProgramStore(mEnviroment.mFragmentStore.get());
133     }
134     if (mEnviroment.mFragment.get()) {
135         rsc->setProgramFragment(mEnviroment.mFragment.get());
136     }
137     if (mEnviroment.mVertex.get()) {
138         rsc->setProgramVertex(mEnviroment.mVertex.get());
139     }
140     if (mEnviroment.mRaster.get()) {
141         rsc->setProgramRaster(mEnviroment.mRaster.get());
142     }
143 #endif
144 }
145 
run(Context * rsc)146 uint32_t ScriptC::run(Context *rsc) {
147     if (mHal.info.root == nullptr) {
148         rsc->setError(RS_ERROR_BAD_SCRIPT, "Attempted to run bad script");
149         return 0;
150     }
151 
152     setupGLState(rsc);
153     setupScript(rsc);
154 
155     uint32_t ret = 0;
156 
157     if (rsc->props.mLogScripts) {
158         ALOGV("%p ScriptC::run invoking root,  ptr %p", rsc, mHal.info.root);
159     }
160 
161     ret = rsc->mHal.funcs.script.invokeRoot(rsc, this);
162 
163     if (rsc->props.mLogScripts) {
164         ALOGV("%p ScriptC::run invoking complete, ret=%i", rsc, ret);
165     }
166 
167     return ret;
168 }
169 
170 
runForEach(Context * rsc,uint32_t slot,const Allocation ** ains,size_t inLen,Allocation * aout,const void * usr,size_t usrBytes,const RsScriptCall * sc)171 void ScriptC::runForEach(Context *rsc,
172                          uint32_t slot,
173                          const Allocation ** ains,
174                          size_t inLen,
175                          Allocation * aout,
176                          const void * usr,
177                          size_t usrBytes,
178                          const RsScriptCall *sc) {
179     if (slot >= mHal.info.exportedForEachCount) {
180         rsc->setError(RS_ERROR_BAD_SCRIPT,
181                       "The forEach kernel index is out of bounds");
182         return;
183     }
184 
185     // Trace this function call.
186     // To avoid overhead we only build the string if tracing is actually
187     // enabled.
188     std::stringstream ss;
189     if (ATRACE_ENABLED()) {
190         ss << "runForEach slot[" << slot << "]";
191     }
192     std::string msgStr(ss.str());
193     ATRACE_NAME(msgStr.c_str());
194 
195     if (mRSC->hadFatalError()) return;
196 
197     Context::PushState ps(rsc);
198 
199     setupGLState(rsc);
200     setupScript(rsc);
201 
202     if (rsc->props.mLogScripts) {
203         ALOGV("%p ScriptC::runForEach invoking slot %i, ptr %p", rsc, slot, this);
204     }
205 
206     if (rsc->mHal.funcs.script.invokeForEachMulti != nullptr) {
207         rsc->mHal.funcs.script.invokeForEachMulti(rsc, this, slot, ains, inLen,
208                                                   aout, usr, usrBytes, sc);
209 
210     } else if (inLen == 1) {
211         rsc->mHal.funcs.script.invokeForEach(rsc, this, slot, ains[0], aout,
212                                              usr, usrBytes, sc);
213 
214     } else {
215         rsc->setError(RS_ERROR_FATAL_DRIVER,
216                       "Driver support for multi-input not present");
217     }
218 }
219 
runReduce(Context * rsc,uint32_t slot,const Allocation ** ains,size_t inLen,Allocation * aout,const RsScriptCall * sc)220 void ScriptC::runReduce(Context *rsc, uint32_t slot,
221                         const Allocation ** ains, size_t inLen,
222                         Allocation *aout, const RsScriptCall *sc) {
223   // TODO: Record the name of the kernel in the tracing information.
224   ATRACE_CALL();
225 
226   if (slot >= mHal.info.exportedReduceCount) {
227       rsc->setError(RS_ERROR_BAD_SCRIPT, "The general reduce kernel index is out of bounds");
228       return;
229   }
230   if (mRSC->hadFatalError()) return;
231 
232   setupScript(rsc);
233 
234   if (rsc->props.mLogScripts) {
235       ALOGV("%p ScriptC::runReduce invoking slot %i, ptr %p", rsc, slot, this);
236   }
237 
238   rsc->mHal.funcs.script.invokeReduce(rsc, this, slot, ains, inLen, aout, sc);
239 }
240 
Invoke(Context * rsc,uint32_t slot,const void * data,size_t len)241 void ScriptC::Invoke(Context *rsc, uint32_t slot, const void *data, size_t len) {
242     ATRACE_CALL();
243 
244     if (slot >= mHal.info.exportedFunctionCount) {
245         rsc->setError(RS_ERROR_BAD_SCRIPT, "The invokable index is out of bounds");
246         return;
247     }
248     if (mRSC->hadFatalError()) return;
249 
250     setupScript(rsc);
251 
252     if (rsc->props.mLogScripts) {
253         ALOGV("%p ScriptC::Invoke invoking slot %i,  ptr %p", rsc, slot, this);
254     }
255     rsc->mHal.funcs.script.invokeFunction(rsc, this, slot, data, len);
256 }
257 
258 static const bool kDebugBitcode = false;
259 
260 #ifndef RS_COMPATIBILITY_LIB
261 
dumpBitcodeFile(const char * cacheDir,const char * resName,const char * suffix,const uint8_t * bitcode,size_t bitcodeLen)262 static bool dumpBitcodeFile(const char *cacheDir, const char *resName,
263                             const char *suffix, const uint8_t *bitcode,
264                             size_t bitcodeLen) {
265     std::string f(cacheDir);
266     f.append("/");
267     f.append(resName);
268     f.append("#");
269     f.append(suffix);
270     f.append(".bc");
271 
272     if (!ScriptC::createCacheDir(cacheDir)) {
273         return false;
274     }
275 
276     FILE *fp = fopen(f.c_str(), "w");
277     if (!fp) {
278         ALOGE("Could not open %s", f.c_str());
279         return false;
280     }
281 
282     size_t nWritten = fwrite(bitcode, 1, bitcodeLen, fp);
283     fclose(fp);
284     if (nWritten != bitcodeLen) {
285         ALOGE("Could not write %s", f.c_str());
286         return false;
287     }
288     return true;
289 }
290 
291 #endif  // !RS_COMPATIBILITY_LIB
292 
293 
runCompiler(Context * rsc,const char * resName,const char * cacheDir,const uint8_t * bitcode,size_t bitcodeLen)294 bool ScriptC::runCompiler(Context *rsc,
295                           const char *resName,
296                           const char *cacheDir,
297                           const uint8_t *bitcode,
298                           size_t bitcodeLen) {
299     ATRACE_CALL();
300     //ALOGE("runCompiler %p %p %p %p %p %i", rsc, this, resName, cacheDir, bitcode, bitcodeLen);
301 #ifndef RS_COMPATIBILITY_LIB
302     uint32_t sdkVersion = 0;
303     bcinfo::BitcodeWrapper bcWrapper((const char *)bitcode, bitcodeLen);
304     if (!bcWrapper.unwrap()) {
305         ALOGE("Bitcode is not in proper container format (raw or wrapper)");
306         return false;
307     }
308 
309     if (bcWrapper.getBCFileType() == bcinfo::BC_WRAPPER) {
310         sdkVersion = bcWrapper.getTargetAPI();
311     }
312 
313     if (sdkVersion == 0) {
314         // This signals that we didn't have a wrapper containing information
315         // about the bitcode.
316         sdkVersion = rsc->getTargetSdkVersion();
317     }
318 
319     // Save off the sdkVersion, so that we can handle broken cases later.
320     // Bug 19734267
321     mApiLevel = sdkVersion;
322 
323     bcinfo::BitcodeTranslator BT((const char *)bitcode, bitcodeLen,
324                                  sdkVersion);
325     if (!BT.translate()) {
326         ALOGE("Failed to translate bitcode from version: %u", sdkVersion);
327         return false;
328     }
329     bitcode = (const uint8_t *) BT.getTranslatedBitcode();
330     bitcodeLen = BT.getTranslatedBitcodeSize();
331 
332     if (kDebugBitcode) {
333         if (!dumpBitcodeFile(cacheDir, resName, "after", bitcode, bitcodeLen)) {
334             return false;
335         }
336     }
337 
338 
339     // Set the optimization level of bcc to be the same as the
340     // optimization level used to compile the bitcode.
341     rsc->setOptLevel(bcWrapper.getOptimizationLevel());
342 
343     if (!cacheDir) {
344         // MUST BE FIXED BEFORE ANYTHING USING C++ API IS RELEASED
345         cacheDir = getenv("EXTERNAL_STORAGE");
346         ALOGV("Cache dir changed to %s", cacheDir);
347     }
348 
349     // ensure that cache dir exists
350     if (cacheDir && !createCacheDir(cacheDir)) {
351       return false;
352     }
353 #endif
354 
355     if (!rsc->mHal.funcs.script.init(rsc, this, resName, cacheDir, bitcode, bitcodeLen, 0)) {
356         return false;
357     }
358 
359     mInitialized = true;
360 #if !defined(RS_VENDOR_LIB) && !defined(RS_COMPATIBILITY_LIB)
361     mEnviroment.mFragment.set(rsc->getDefaultProgramFragment());
362     mEnviroment.mVertex.set(rsc->getDefaultProgramVertex());
363     mEnviroment.mFragmentStore.set(rsc->getDefaultProgramStore());
364     mEnviroment.mRaster.set(rsc->getDefaultProgramRaster());
365 #endif
366 
367     rsc->mHal.funcs.script.invokeInit(rsc, this);
368 
369     for (size_t i=0; i < mHal.info.exportedPragmaCount; ++i) {
370         const char * key = mHal.info.exportedPragmaKeyList[i];
371         const char * value = mHal.info.exportedPragmaValueList[i];
372         //ALOGE("pragma %s %s", keys[i], values[i]);
373         if (!strcmp(key, "version")) {
374             if (!strcmp(value, "1")) {
375                 continue;
376             }
377             ALOGE("Invalid version pragma value: %s\n", value);
378             return false;
379         }
380 
381 #if !defined(RS_VENDOR_LIB) && !defined(RS_COMPATIBILITY_LIB)
382         if (!strcmp(key, "stateVertex")) {
383             if (!strcmp(value, "default")) {
384                 continue;
385             }
386             if (!strcmp(value, "parent")) {
387                 mEnviroment.mVertex.clear();
388                 continue;
389             }
390             ALOGE("Unrecognized value %s passed to stateVertex", value);
391             return false;
392         }
393 
394         if (!strcmp(key, "stateRaster")) {
395             if (!strcmp(value, "default")) {
396                 continue;
397             }
398             if (!strcmp(value, "parent")) {
399                 mEnviroment.mRaster.clear();
400                 continue;
401             }
402             ALOGE("Unrecognized value %s passed to stateRaster", value);
403             return false;
404         }
405 
406         if (!strcmp(key, "stateFragment")) {
407             if (!strcmp(value, "default")) {
408                 continue;
409             }
410             if (!strcmp(value, "parent")) {
411                 mEnviroment.mFragment.clear();
412                 continue;
413             }
414             ALOGE("Unrecognized value %s passed to stateFragment", value);
415             return false;
416         }
417 
418         if (!strcmp(key, "stateStore")) {
419             if (!strcmp(value, "default")) {
420                 continue;
421             }
422             if (!strcmp(value, "parent")) {
423                 mEnviroment.mFragmentStore.clear();
424                 continue;
425             }
426             ALOGE("Unrecognized value %s passed to stateStore", value);
427             return false;
428         }
429 #endif
430 
431     }
432 
433     mSlots = new ObjectBaseRef<Allocation>[mHal.info.exportedVariableCount];
434     mTypes = new ObjectBaseRef<const Type>[mHal.info.exportedVariableCount];
435 
436     return true;
437 }
438 
439 namespace android {
440 namespace renderscript {
441 
rsi_ScriptCCreate(Context * rsc,const char * resName,size_t resName_length,const char * cacheDir,size_t cacheDir_length,const char * text,size_t text_length)442 RsScript rsi_ScriptCCreate(Context *rsc,
443                            const char *resName, size_t resName_length,
444                            const char *cacheDir, size_t cacheDir_length,
445                            const char *text, size_t text_length)
446 {
447     ScriptC *s = new ScriptC(rsc);
448 
449     if (!s->runCompiler(rsc, resName, cacheDir, (uint8_t *)text, text_length)) {
450         // Error during compile, destroy s and return null.
451         ObjectBase::checkDelete(s);
452         return nullptr;
453     }
454 
455     s->incUserRef();
456     return s;
457 }
458 
459 } // namespace renderscript
460 } // namespace android
461