rsScriptC.cpp - platform/frameworks/rs - Gitiles

 /*
  * Copyright (C) 2009-2012 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include "rsContext.h"
 #include "rsScriptC.h"

 #if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
 #include <bcinfo/BitcodeTranslator.h>
 #include <bcinfo/BitcodeWrapper.h>
 #endif

 #if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB)
 #include "utils/Timers.h"
 #include "cutils/trace.h"
 #endif

 #include <sys/stat.h>

 #include <string>

 #ifdef USE_MINGW
 /* Define the default path separator for the platform. */
 #define OS_PATH_SEPARATOR     '\\'
 #define OS_PATH_SEPARATOR_STR "\\"

 #else /* not USE_MINGW */

 /* Define the default path separator for the platform. */
 #define OS_PATH_SEPARATOR     '/'
 #define OS_PATH_SEPARATOR_STR "/"

 #endif

 using namespace android;
 using namespace android::renderscript;

 #define GET_TLS()  Context::ScriptTLSStruct * tls = \
     (Context::ScriptTLSStruct *)pthread_getspecific(Context::gThreadTLSKey); \
     Context * rsc = tls->mContext; \
     ScriptC * sc = (ScriptC *) tls->mScript

 ScriptC::ScriptC(Context *rsc) : Script(rsc) {
 #if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
     BT = nullptr;
 #endif
 }

 ScriptC::~ScriptC() {
 #if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
     if (BT) {
         delete BT;
         BT = nullptr;
     }
 #endif
     if (mInitialized) {
         mRSC->mHal.funcs.script.invokeFreeChildren(mRSC, this);
         mRSC->mHal.funcs.script.destroy(mRSC, this);
     }
 }

 #ifndef RS_COMPATIBILITY_LIB
 bool ScriptC::createCacheDir(const char *cacheDir) {
     std::string currentDir;
     const std::string cacheDirString(cacheDir);

     struct stat statBuf;
     int statReturn = stat(cacheDir, &statBuf);
     if (!statReturn) {
         return true;
     }

     // Start from the beginning of the cacheDirString.
     int currPos = 0;

     // Reserve space in currentDir for the entire cacheDir path.
     currentDir.reserve(cacheDirString.length());

     while (currPos >= 0) {
         /*
          * The character at currPos should be a path separator.  We need to look
          * for the next one.
          */
         int nextPos = cacheDirString.find(OS_PATH_SEPARATOR_STR, currPos + 1);

         if (nextPos > 0) {
             // A new path separator has been found.
             currentDir += cacheDirString.substr(currPos, nextPos - currPos);
         } else {
             // There are no more path separators.
             currentDir += cacheDirString.substr(currPos);
         }

         currPos = nextPos;

         statReturn = stat(currentDir.c_str(), &statBuf);

         if (statReturn) {
             if (errno == ENOENT) {
                 if (mkdir(currentDir.c_str(), S_IRUSR | S_IWUSR | S_IXUSR)) {
                     ALOGE("Couldn't create cache directory: %s",
                           currentDir.c_str());
                     ALOGE("Error: %s", strerror(errno));
                     return false;
                 }
             } else {
                 ALOGE("Stat error: %s", strerror(errno));
                 return false;
             }
         }
     }
     return true;
 }
 #endif

 void ScriptC::setupScript(Context *rsc) {
 #ifndef RS_SERVER
     mEnviroment.mStartTimeMillis
                 = nanoseconds_to_milliseconds(systemTime(SYSTEM_TIME_MONOTONIC));
 #endif

     for (uint32_t ct=0; ct < mHal.info.exportedVariableCount; ct++) {
         if (mSlots[ct].get() && !mTypes[ct].get()) {
             mTypes[ct].set(mSlots[ct]->getType());
         }

         if (!mTypes[ct].get())
             continue;
         rsc->mHal.funcs.script.setGlobalBind(rsc, this, ct, mSlots[ct].get());
     }
 }

 void ScriptC::setupGLState(Context *rsc) {
 #ifndef RS_COMPATIBILITY_LIB
     if (mEnviroment.mFragmentStore.get()) {
         rsc->setProgramStore(mEnviroment.mFragmentStore.get());
     }
     if (mEnviroment.mFragment.get()) {
         rsc->setProgramFragment(mEnviroment.mFragment.get());
     }
     if (mEnviroment.mVertex.get()) {
         rsc->setProgramVertex(mEnviroment.mVertex.get());
     }
     if (mEnviroment.mRaster.get()) {
         rsc->setProgramRaster(mEnviroment.mRaster.get());
     }
 #endif
 }

 uint32_t ScriptC::run(Context *rsc) {
     if (mHal.info.root == nullptr) {
         rsc->setError(RS_ERROR_BAD_SCRIPT, "Attempted to run bad script");
         return 0;
     }

     setupGLState(rsc);
     setupScript(rsc);

     uint32_t ret = 0;

     if (rsc->props.mLogScripts) {
         ALOGV("%p ScriptC::run invoking root,  ptr %p", rsc, mHal.info.root);
     }

     ret = rsc->mHal.funcs.script.invokeRoot(rsc, this);

     if (rsc->props.mLogScripts) {
         ALOGV("%p ScriptC::run invoking complete, ret=%i", rsc, ret);
     }

     return ret;
 }


 void ScriptC::runForEach(Context *rsc,
                          uint32_t slot,
                          const Allocation ** ains,
                          size_t inLen,
                          Allocation * aout,
                          const void * usr,
                          size_t usrBytes,
                          const RsScriptCall *sc) {
     // Trace this function call.
     // To avoid overhead we only build the string if tracing is actually
     // enabled.
     String8 *AString = NULL;
     const char *String = "";
     if (ATRACE_ENABLED()) {
         AString = new String8("runForEach_");
         AString->append(mHal.info.exportedForeachFuncList[slot].first);
         String = AString->string();
     }
     ATRACE_NAME(String);
     (void)String;

     Context::PushState ps(rsc);

     setupGLState(rsc);
     setupScript(rsc);

     if (rsc->mHal.funcs.script.invokeForEachMulti != nullptr) {
         rsc->mHal.funcs.script.invokeForEachMulti(rsc, this, slot, ains, inLen,
                                                   aout, usr, usrBytes, sc);

     } else if (inLen == 1) {
         rsc->mHal.funcs.script.invokeForEach(rsc, this, slot, ains[0], aout,
                                              usr, usrBytes, sc);

     } else {
         rsc->setError(RS_ERROR_FATAL_DRIVER,
                       "Driver support for multi-input not present");
     }

     if (AString) {
         delete AString;
     }
 }

 void ScriptC::Invoke(Context *rsc, uint32_t slot, const void *data, size_t len) {
     ATRACE_CALL();

     if (slot >= mHal.info.exportedFunctionCount) {
         rsc->setError(RS_ERROR_BAD_SCRIPT, "Calling invoke on bad script");
         return;
     }
     setupScript(rsc);

     if (rsc->props.mLogScripts) {
         ALOGV("%p ScriptC::Invoke invoking slot %i,  ptr %p", rsc, slot, this);
     }
     rsc->mHal.funcs.script.invokeFunction(rsc, this, slot, data, len);
 }

 static const bool kDebugBitcode = false;

 #ifndef RS_COMPATIBILITY_LIB
 #ifndef ANDROID_RS_SERIALIZE

 static bool dumpBitcodeFile(const char *cacheDir, const char *resName,
                             const char *suffix, const uint8_t *bitcode,
                             size_t bitcodeLen) {
     std::string f(cacheDir);
     f.append("/");
     f.append(resName);
     f.append("#");
     f.append(suffix);
     f.append(".bc");

     if (!ScriptC::createCacheDir(cacheDir)) {
         return false;
     }

     FILE *fp = fopen(f.c_str(), "w");
     if (!fp) {
         ALOGE("Could not open %s", f.c_str());
         return false;
     }

     size_t nWritten = fwrite(bitcode, 1, bitcodeLen, fp);
     fclose(fp);
     if (nWritten != bitcodeLen) {
         ALOGE("Could not write %s", f.c_str());
         return false;
     }
     return true;
 }

 #endif  // !ANDROID_RS_SERIALIZE
 #endif  // !RS_COMPATIBILITY_LIB


 bool ScriptC::runCompiler(Context *rsc,
                           const char *resName,
                           const char *cacheDir,
                           const uint8_t *bitcode,
                           size_t bitcodeLen) {
     ATRACE_CALL();
     //ALOGE("runCompiler %p %p %p %p %p %i", rsc, this, resName, cacheDir, bitcode, bitcodeLen);
 #ifndef RS_COMPATIBILITY_LIB
 #ifndef ANDROID_RS_SERIALIZE
     uint32_t sdkVersion = 0;
     bcinfo::BitcodeWrapper bcWrapper((const char *)bitcode, bitcodeLen);
     if (!bcWrapper.unwrap()) {
         ALOGE("Bitcode is not in proper container format (raw or wrapper)");
         return false;
     }

     if (bcWrapper.getBCFileType() == bcinfo::BC_WRAPPER) {
         sdkVersion = bcWrapper.getTargetAPI();
     }

     if (sdkVersion == 0) {
         // This signals that we didn't have a wrapper containing information
         // about the bitcode.
         sdkVersion = rsc->getTargetSdkVersion();
     }

     if (BT) {
         delete BT;
     }
     BT = new bcinfo::BitcodeTranslator((const char *)bitcode, bitcodeLen,
                                        sdkVersion);
     if (!BT->translate()) {
         ALOGE("Failed to translate bitcode from version: %u", sdkVersion);
         delete BT;
         BT = nullptr;
         return false;
     }
     bitcode = (const uint8_t *) BT->getTranslatedBitcode();
     bitcodeLen = BT->getTranslatedBitcodeSize();

     if (kDebugBitcode) {
         if (!dumpBitcodeFile(cacheDir, resName, "after", bitcode, bitcodeLen)) {
             return false;
         }
     }

 #endif
     if (!cacheDir) {
         // MUST BE FIXED BEFORE ANYTHING USING C++ API IS RELEASED
         cacheDir = getenv("EXTERNAL_STORAGE");
         ALOGV("Cache dir changed to %s", cacheDir);
     }

     // ensure that cache dir exists
     if (cacheDir && !createCacheDir(cacheDir)) {
       return false;
     }
 #endif

     if (!rsc->mHal.funcs.script.init(rsc, this, resName, cacheDir, bitcode, bitcodeLen, 0)) {
         return false;
     }

     mInitialized = true;
 #ifndef RS_COMPATIBILITY_LIB
     mEnviroment.mFragment.set(rsc->getDefaultProgramFragment());
     mEnviroment.mVertex.set(rsc->getDefaultProgramVertex());
     mEnviroment.mFragmentStore.set(rsc->getDefaultProgramStore());
     mEnviroment.mRaster.set(rsc->getDefaultProgramRaster());
 #endif

     rsc->mHal.funcs.script.invokeInit(rsc, this);

     for (size_t i=0; i < mHal.info.exportedPragmaCount; ++i) {
         const char * key = mHal.info.exportedPragmaKeyList[i];
         const char * value = mHal.info.exportedPragmaValueList[i];
         //ALOGE("pragma %s %s", keys[i], values[i]);
         if (!strcmp(key, "version")) {
             if (!strcmp(value, "1")) {
                 continue;
             }
             ALOGE("Invalid version pragma value: %s\n", value);
             return false;
         }

 #ifndef RS_COMPATIBILITY_LIB
         if (!strcmp(key, "stateVertex")) {
             if (!strcmp(value, "default")) {
                 continue;
             }
             if (!strcmp(value, "parent")) {
                 mEnviroment.mVertex.clear();
                 continue;
             }
             ALOGE("Unrecognized value %s passed to stateVertex", value);
             return false;
         }

         if (!strcmp(key, "stateRaster")) {
             if (!strcmp(value, "default")) {
                 continue;
             }
             if (!strcmp(value, "parent")) {
                 mEnviroment.mRaster.clear();
                 continue;
             }
             ALOGE("Unrecognized value %s passed to stateRaster", value);
             return false;
         }

         if (!strcmp(key, "stateFragment")) {
             if (!strcmp(value, "default")) {
                 continue;
             }
             if (!strcmp(value, "parent")) {
                 mEnviroment.mFragment.clear();
                 continue;
             }
             ALOGE("Unrecognized value %s passed to stateFragment", value);
             return false;
         }

         if (!strcmp(key, "stateStore")) {
             if (!strcmp(value, "default")) {
                 continue;
             }
             if (!strcmp(value, "parent")) {
                 mEnviroment.mFragmentStore.clear();
                 continue;
             }
             ALOGE("Unrecognized value %s passed to stateStore", value);
             return false;
         }
 #endif

     }

     mSlots = new ObjectBaseRef<Allocation>[mHal.info.exportedVariableCount];
     mTypes = new ObjectBaseRef<const Type>[mHal.info.exportedVariableCount];

     return true;
 }

 namespace android {
 namespace renderscript {

 RsScript 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)
 {
     ScriptC *s = new ScriptC(rsc);

     if (!s->runCompiler(rsc, resName, cacheDir, (uint8_t *)text, text_length)) {
         // Error during compile, destroy s and return null.
         ObjectBase::checkDelete(s);
         return nullptr;
     }

     s->incUserRef();
     return s;
 }

 }
 }
	/*
	* Copyright (C) 2009-2012 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include "rsContext.h"
	#include "rsScriptC.h"

	#if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
	#include <bcinfo/BitcodeTranslator.h>
	#include <bcinfo/BitcodeWrapper.h>
	#endif

	#if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB)
	#include "utils/Timers.h"
	#include "cutils/trace.h"
	#endif

	#include <sys/stat.h>

	#include <string>

	#ifdef USE_MINGW
	/* Define the default path separator for the platform. */
	#define OS_PATH_SEPARATOR '\\'
	#define OS_PATH_SEPARATOR_STR "\\"

	#else /* not USE_MINGW */

	/* Define the default path separator for the platform. */
	#define OS_PATH_SEPARATOR '/'
	#define OS_PATH_SEPARATOR_STR "/"

	#endif

	using namespace android;
	using namespace android::renderscript;

	#define GET_TLS() Context::ScriptTLSStruct * tls = \
	(Context::ScriptTLSStruct *)pthread_getspecific(Context::gThreadTLSKey); \
	Context * rsc = tls->mContext; \
	ScriptC * sc = (ScriptC *) tls->mScript

	ScriptC::ScriptC(Context *rsc) : Script(rsc) {
	#if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
	BT = nullptr;
	#endif
	}

	ScriptC::~ScriptC() {
	#if !defined(RS_COMPATIBILITY_LIB) && !defined(ANDROID_RS_SERIALIZE)
	if (BT) {
	delete BT;
	BT = nullptr;
	}
	#endif
	if (mInitialized) {
	mRSC->mHal.funcs.script.invokeFreeChildren(mRSC, this);
	mRSC->mHal.funcs.script.destroy(mRSC, this);
	}
	}

	#ifndef RS_COMPATIBILITY_LIB
	bool ScriptC::createCacheDir(const char *cacheDir) {
	std::string currentDir;
	const std::string cacheDirString(cacheDir);

	struct stat statBuf;
	int statReturn = stat(cacheDir, &statBuf);
	if (!statReturn) {
	return true;
	}

	// Start from the beginning of the cacheDirString.
	int currPos = 0;

	// Reserve space in currentDir for the entire cacheDir path.
	currentDir.reserve(cacheDirString.length());

	while (currPos >= 0) {
	/*
	* The character at currPos should be a path separator. We need to look
	* for the next one.
	*/
	int nextPos = cacheDirString.find(OS_PATH_SEPARATOR_STR, currPos + 1);

	if (nextPos > 0) {
	// A new path separator has been found.
	currentDir += cacheDirString.substr(currPos, nextPos - currPos);
	} else {
	// There are no more path separators.
	currentDir += cacheDirString.substr(currPos);
	}

	currPos = nextPos;

	statReturn = stat(currentDir.c_str(), &statBuf);

	if (statReturn) {
	if (errno == ENOENT) {
	if (mkdir(currentDir.c_str(), S_IRUSR \| S_IWUSR \| S_IXUSR)) {
	ALOGE("Couldn't create cache directory: %s",
	currentDir.c_str());
	ALOGE("Error: %s", strerror(errno));
	return false;
	}
	} else {
	ALOGE("Stat error: %s", strerror(errno));
	return false;
	}
	}
	}
	return true;
	}
	#endif

	void ScriptC::setupScript(Context *rsc) {
	#ifndef RS_SERVER
	mEnviroment.mStartTimeMillis
	= nanoseconds_to_milliseconds(systemTime(SYSTEM_TIME_MONOTONIC));
	#endif

	for (uint32_t ct=0; ct < mHal.info.exportedVariableCount; ct++) {
	if (mSlots[ct].get() && !mTypes[ct].get()) {
	mTypes[ct].set(mSlots[ct]->getType());
	}

	if (!mTypes[ct].get())
	continue;
	rsc->mHal.funcs.script.setGlobalBind(rsc, this, ct, mSlots[ct].get());
	}
	}

	void ScriptC::setupGLState(Context *rsc) {
	#ifndef RS_COMPATIBILITY_LIB
	if (mEnviroment.mFragmentStore.get()) {
	rsc->setProgramStore(mEnviroment.mFragmentStore.get());
	}
	if (mEnviroment.mFragment.get()) {
	rsc->setProgramFragment(mEnviroment.mFragment.get());
	}
	if (mEnviroment.mVertex.get()) {
	rsc->setProgramVertex(mEnviroment.mVertex.get());
	}
	if (mEnviroment.mRaster.get()) {
	rsc->setProgramRaster(mEnviroment.mRaster.get());
	}
	#endif
	}

	uint32_t ScriptC::run(Context *rsc) {
	if (mHal.info.root == nullptr) {
	rsc->setError(RS_ERROR_BAD_SCRIPT, "Attempted to run bad script");
	return 0;
	}

	setupGLState(rsc);
	setupScript(rsc);

	uint32_t ret = 0;

	if (rsc->props.mLogScripts) {
	ALOGV("%p ScriptC::run invoking root, ptr %p", rsc, mHal.info.root);
	}

	ret = rsc->mHal.funcs.script.invokeRoot(rsc, this);

	if (rsc->props.mLogScripts) {
	ALOGV("%p ScriptC::run invoking complete, ret=%i", rsc, ret);
	}

	return ret;
	}


	void ScriptC::runForEach(Context *rsc,
	uint32_t slot,
	const Allocation ** ains,
	size_t inLen,
	Allocation * aout,
	const void * usr,
	size_t usrBytes,
	const RsScriptCall *sc) {
	// Trace this function call.
	// To avoid overhead we only build the string if tracing is actually
	// enabled.
	String8 *AString = NULL;
	const char *String = "";
	if (ATRACE_ENABLED()) {
	AString = new String8("runForEach_");
	AString->append(mHal.info.exportedForeachFuncList[slot].first);
	String = AString->string();
	}
	ATRACE_NAME(String);
	(void)String;

	Context::PushState ps(rsc);

	setupGLState(rsc);
	setupScript(rsc);

	if (rsc->mHal.funcs.script.invokeForEachMulti != nullptr) {
	rsc->mHal.funcs.script.invokeForEachMulti(rsc, this, slot, ains, inLen,
	aout, usr, usrBytes, sc);

	} else if (inLen == 1) {
	rsc->mHal.funcs.script.invokeForEach(rsc, this, slot, ains[0], aout,
	usr, usrBytes, sc);

	} else {
	rsc->setError(RS_ERROR_FATAL_DRIVER,
	"Driver support for multi-input not present");
	}

	if (AString) {
	delete AString;
	}
	}

	void ScriptC::Invoke(Context rsc, uint32_t slot, const void data, size_t len) {
	ATRACE_CALL();

	if (slot >= mHal.info.exportedFunctionCount) {
	rsc->setError(RS_ERROR_BAD_SCRIPT, "Calling invoke on bad script");
	return;
	}
	setupScript(rsc);

	if (rsc->props.mLogScripts) {
	ALOGV("%p ScriptC::Invoke invoking slot %i, ptr %p", rsc, slot, this);
	}
	rsc->mHal.funcs.script.invokeFunction(rsc, this, slot, data, len);
	}

	static const bool kDebugBitcode = false;

	#ifndef RS_COMPATIBILITY_LIB
	#ifndef ANDROID_RS_SERIALIZE

	static bool dumpBitcodeFile(const char cacheDir, const char resName,
	const char suffix, const uint8_t bitcode,
	size_t bitcodeLen) {
	std::string f(cacheDir);
	f.append("/");
	f.append(resName);
	f.append("#");
	f.append(suffix);
	f.append(".bc");

	if (!ScriptC::createCacheDir(cacheDir)) {
	return false;
	}

	FILE *fp = fopen(f.c_str(), "w");
	if (!fp) {
	ALOGE("Could not open %s", f.c_str());
	return false;
	}

	size_t nWritten = fwrite(bitcode, 1, bitcodeLen, fp);
	fclose(fp);
	if (nWritten != bitcodeLen) {
	ALOGE("Could not write %s", f.c_str());
	return false;
	}
	return true;
	}

	#endif // !ANDROID_RS_SERIALIZE
	#endif // !RS_COMPATIBILITY_LIB


	bool ScriptC::runCompiler(Context *rsc,
	const char *resName,
	const char *cacheDir,
	const uint8_t *bitcode,
	size_t bitcodeLen) {
	ATRACE_CALL();
	//ALOGE("runCompiler %p %p %p %p %p %i", rsc, this, resName, cacheDir, bitcode, bitcodeLen);
	#ifndef RS_COMPATIBILITY_LIB
	#ifndef ANDROID_RS_SERIALIZE
	uint32_t sdkVersion = 0;
	bcinfo::BitcodeWrapper bcWrapper((const char *)bitcode, bitcodeLen);
	if (!bcWrapper.unwrap()) {
	ALOGE("Bitcode is not in proper container format (raw or wrapper)");
	return false;
	}

	if (bcWrapper.getBCFileType() == bcinfo::BC_WRAPPER) {
	sdkVersion = bcWrapper.getTargetAPI();
	}

	if (sdkVersion == 0) {
	// This signals that we didn't have a wrapper containing information
	// about the bitcode.
	sdkVersion = rsc->getTargetSdkVersion();
	}

	if (BT) {
	delete BT;
	}
	BT = new bcinfo::BitcodeTranslator((const char *)bitcode, bitcodeLen,
	sdkVersion);
	if (!BT->translate()) {
	ALOGE("Failed to translate bitcode from version: %u", sdkVersion);
	delete BT;
	BT = nullptr;
	return false;
	}
	bitcode = (const uint8_t *) BT->getTranslatedBitcode();
	bitcodeLen = BT->getTranslatedBitcodeSize();

	if (kDebugBitcode) {
	if (!dumpBitcodeFile(cacheDir, resName, "after", bitcode, bitcodeLen)) {
	return false;
	}
	}

	#endif
	if (!cacheDir) {
	// MUST BE FIXED BEFORE ANYTHING USING C++ API IS RELEASED
	cacheDir = getenv("EXTERNAL_STORAGE");
	ALOGV("Cache dir changed to %s", cacheDir);
	}

	// ensure that cache dir exists
	if (cacheDir && !createCacheDir(cacheDir)) {
	return false;
	}
	#endif

	if (!rsc->mHal.funcs.script.init(rsc, this, resName, cacheDir, bitcode, bitcodeLen, 0)) {
	return false;
	}

	mInitialized = true;
	#ifndef RS_COMPATIBILITY_LIB
	mEnviroment.mFragment.set(rsc->getDefaultProgramFragment());
	mEnviroment.mVertex.set(rsc->getDefaultProgramVertex());
	mEnviroment.mFragmentStore.set(rsc->getDefaultProgramStore());
	mEnviroment.mRaster.set(rsc->getDefaultProgramRaster());
	#endif

	rsc->mHal.funcs.script.invokeInit(rsc, this);

	for (size_t i=0; i < mHal.info.exportedPragmaCount; ++i) {
	const char * key = mHal.info.exportedPragmaKeyList[i];
	const char * value = mHal.info.exportedPragmaValueList[i];
	//ALOGE("pragma %s %s", keys[i], values[i]);
	if (!strcmp(key, "version")) {
	if (!strcmp(value, "1")) {
	continue;
	}
	ALOGE("Invalid version pragma value: %s\n", value);
	return false;
	}

	#ifndef RS_COMPATIBILITY_LIB
	if (!strcmp(key, "stateVertex")) {
	if (!strcmp(value, "default")) {
	continue;
	}
	if (!strcmp(value, "parent")) {
	mEnviroment.mVertex.clear();
	continue;
	}
	ALOGE("Unrecognized value %s passed to stateVertex", value);
	return false;
	}

	if (!strcmp(key, "stateRaster")) {
	if (!strcmp(value, "default")) {
	continue;
	}
	if (!strcmp(value, "parent")) {
	mEnviroment.mRaster.clear();
	continue;
	}
	ALOGE("Unrecognized value %s passed to stateRaster", value);
	return false;
	}

	if (!strcmp(key, "stateFragment")) {
	if (!strcmp(value, "default")) {
	continue;
	}
	if (!strcmp(value, "parent")) {
	mEnviroment.mFragment.clear();
	continue;
	}
	ALOGE("Unrecognized value %s passed to stateFragment", value);
	return false;
	}

	if (!strcmp(key, "stateStore")) {
	if (!strcmp(value, "default")) {
	continue;
	}
	if (!strcmp(value, "parent")) {
	mEnviroment.mFragmentStore.clear();
	continue;
	}
	ALOGE("Unrecognized value %s passed to stateStore", value);
	return false;
	}
	#endif

	}

	mSlots = new ObjectBaseRef<Allocation>[mHal.info.exportedVariableCount];
	mTypes = new ObjectBaseRef<const Type>[mHal.info.exportedVariableCount];

	return true;
	}

	namespace android {
	namespace renderscript {

	RsScript 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)
	{
	ScriptC *s = new ScriptC(rsc);

	if (!s->runCompiler(rsc, resName, cacheDir, (uint8_t *)text, text_length)) {
	// Error during compile, destroy s and return null.
	ObjectBase::checkDelete(s);
	return nullptr;
	}

	s->incUserRef();
	return s;
	}

	}
	}