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/*
* Copyright (C) 2015 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.
*/
#ifndef ANDROID_RENDERSCRIPT_EXECUTABLE_H
#define ANDROID_RENDERSCRIPT_EXECUTABLE_H
#include <stdlib.h>
#include "rsCpuScript.h"
namespace android {
namespace renderscript {
class Context;
class SharedLibraryUtils {
public:
#ifndef RS_COMPATIBILITY_LIB
static bool createSharedLibrary(const char* driverName,
const char* cacheDir,
const char* resName);
#endif
// Load the shared library referred to by cacheDir and resName. If we have
// already loaded this library, we instead create a new copy (in the
// cache dir) and then load that. We then immediately destroy the copy.
// This is required behavior to implement script instancing for the support
// library, since shared objects are loaded and de-duped by name only.
// For 64bit RS Support Lib, the shared lib path cannot be constructed from
// cacheDir, so nativeLibDir is needed to load shared libs.
static void* loadSharedLibrary(const char *cacheDir, const char *resName,
const char *nativeLibDir = nullptr,
bool *alreadyLoaded = nullptr);
// Create a len length string containing random characters from [A-Za-z0-9].
static String8 getRandomString(size_t len);
private:
// Attempt to load the shared library from origName, but then fall back to
// creating a copy of the shared library if necessary (to ensure instancing).
// This function returns the dlopen()-ed handle if successful.
static void *loadSOHelper(const char *origName, const char *cacheDir,
const char *resName, bool* alreadyLoaded = nullptr);
static const char* LD_EXE_PATH;
static const char* RS_CACHE_DIR;
};
class ScriptExecutable {
public:
ScriptExecutable(Context* RSContext,
void** fieldAddress, bool* fieldIsObject,
const char* const * fieldName, size_t varCount,
InvokeFunc_t* invokeFunctions, size_t funcCount,
ForEachFunc_t* forEachFunctions, uint32_t* forEachSignatures,
size_t forEachCount,
const char** pragmaKeys, const char** pragmaValues,
size_t pragmaCount,
const char **globalNames, const void **globalAddresses,
const size_t *globalSizes,
const uint32_t *globalProperties, size_t globalEntries,
bool isThreadable, uint32_t buildChecksum) :
mFieldAddress(fieldAddress), mFieldIsObject(fieldIsObject),
mFieldName(fieldName), mExportedVarCount(varCount),
mInvokeFunctions(invokeFunctions), mFuncCount(funcCount),
mForEachFunctions(forEachFunctions), mForEachSignatures(forEachSignatures),
mForEachCount(forEachCount),
mPragmaKeys(pragmaKeys), mPragmaValues(pragmaValues),
mPragmaCount(pragmaCount), mGlobalNames(globalNames),
mGlobalAddresses(globalAddresses), mGlobalSizes(globalSizes),
mGlobalProperties(globalProperties), mGlobalEntries(globalEntries),
mIsThreadable(isThreadable), mBuildChecksum(buildChecksum),
mRS(RSContext) {
}
~ScriptExecutable() {
for (size_t i = 0; i < mExportedVarCount; ++i) {
if (mFieldIsObject[i]) {
if (mFieldAddress[i] != nullptr) {
rs_object_base *obj_addr =
reinterpret_cast<rs_object_base *>(mFieldAddress[i]);
rsrClearObject(mRS, obj_addr);
}
}
}
for (size_t i = 0; i < mPragmaCount; ++i) {
delete [] mPragmaKeys[i];
delete [] mPragmaValues[i];
}
delete[] mPragmaValues;
delete[] mPragmaKeys;
delete[] mForEachSignatures;
delete[] mForEachFunctions;
delete[] mInvokeFunctions;
for (size_t i = 0; i < mExportedVarCount; i++) {
delete[] mFieldName[i];
}
delete[] mFieldName;
delete[] mFieldIsObject;
delete[] mFieldAddress;
}
// Create an ScriptExecutable object from a shared object.
// If expectedChecksum is not zero, it will be compared to the checksum
// embedded in the shared object. A mismatch will cause a failure.
// If succeeded, returns the new object. Otherwise, returns nullptr.
static ScriptExecutable*
createFromSharedObject(Context* RSContext, void* sharedObj,
uint32_t expectedChecksum = 0);
size_t getExportedVariableCount() const { return mExportedVarCount; }
size_t getExportedFunctionCount() const { return mFuncCount; }
size_t getExportedForEachCount() const { return mForEachCount; }
size_t getPragmaCount() const { return mPragmaCount; }
void* getFieldAddress(int slot) const { return mFieldAddress[slot]; }
void* getFieldAddress(const char* name) const;
bool getFieldIsObject(int slot) const { return mFieldIsObject[slot]; }
const char* getFieldName(int slot) const { return mFieldName[slot]; }
InvokeFunc_t getInvokeFunction(int slot) const { return mInvokeFunctions[slot]; }
ForEachFunc_t getForEachFunction(int slot) const { return mForEachFunctions[slot]; }
uint32_t getForEachSignature(int slot) const { return mForEachSignatures[slot]; }
const char ** getPragmaKeys() const { return mPragmaKeys; }
const char ** getPragmaValues() const { return mPragmaValues; }
const char* getGlobalName(int i) const {
if (i < mGlobalEntries) {
return mGlobalNames[i];
} else {
return nullptr;
}
}
const void* getGlobalAddress(int i) const {
if (i < mGlobalEntries) {
return mGlobalAddresses[i];
} else {
return nullptr;
}
}
size_t getGlobalSize(int i) const {
if (i < mGlobalEntries) {
return mGlobalSizes[i];
} else {
return 0;
}
}
uint32_t getGlobalProperties(int i) const {
if (i < mGlobalEntries) {
return mGlobalProperties[i];
} else {
return 0;
}
}
int getGlobalEntries() const { return mGlobalEntries; }
bool getThreadable() const { return mIsThreadable; }
uint32_t getBuildChecksum() const { return mBuildChecksum; }
bool dumpGlobalInfo() const;
private:
void** mFieldAddress;
bool* mFieldIsObject;
const char* const * mFieldName;
size_t mExportedVarCount;
InvokeFunc_t* mInvokeFunctions;
size_t mFuncCount;
ForEachFunc_t* mForEachFunctions;
uint32_t* mForEachSignatures;
size_t mForEachCount;
const char ** mPragmaKeys;
const char ** mPragmaValues;
size_t mPragmaCount;
const char ** mGlobalNames;
const void ** mGlobalAddresses;
const size_t * mGlobalSizes;
const uint32_t * mGlobalProperties;
int mGlobalEntries;
bool mIsThreadable;
uint32_t mBuildChecksum;
Context* mRS;
};
} // namespace renderscript
} // namespace android
#endif // ANDROID_RENDERSCRIPT_EXECUTABLE_H
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