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/*-------------------------------------------------------------------------
* drawElements Utility Library
* ----------------------------
*
* Copyright 2014 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.
*
*//*!
* \file
* \brief Dynamic link library abstraction.
*//*--------------------------------------------------------------------*/
#include "deDynamicLibrary.h"
#include "deMemory.h"
#if (DE_OS == DE_OS_UNIX) || (DE_OS == DE_OS_ANDROID) || (DE_OS == DE_OS_OSX) || (DE_OS == DE_OS_SYMBIAN) || (DE_OS == DE_OS_IOS) || (DE_OS == DE_OS_QNX)
/* Posix implementation. */
#include <dlfcn.h>
struct deDynamicLibrary_s
{
void* libHandle;
};
deDynamicLibrary* deDynamicLibrary_open (const char* fileName)
{
deDynamicLibrary* library = (deDynamicLibrary*)deCalloc(sizeof(deDynamicLibrary));
if (!library)
return DE_NULL;
library->libHandle = dlopen(fileName, RTLD_LAZY);
if (!library->libHandle)
{
deFree(library);
return DE_NULL;
}
return library;
}
void deDynamicLibrary_close (deDynamicLibrary* library)
{
if (library && library->libHandle)
dlclose(library->libHandle);
deFree(library);
}
deFunctionPtr deDynamicLibrary_getFunction (const deDynamicLibrary* library, const char* symbolName)
{
/* C forbids direct cast from object pointer to function pointer */
union
{
deFunctionPtr funcPtr;
void* objPtr;
} ptr;
DE_ASSERT(library && library->libHandle && symbolName);
ptr.objPtr = dlsym(library->libHandle, symbolName);
return ptr.funcPtr;
}
#elif (DE_OS == DE_OS_WIN32)
/* Win32 implementation. */
#define WIN32_LEAN_AND_MEAN
#define VC_EXTRALEAN
#include <windows.h>
struct deDynamicLibrary_s
{
HINSTANCE handle;
};
deDynamicLibrary* deDynamicLibrary_open (const char* fileName)
{
deDynamicLibrary* library = (deDynamicLibrary*)deCalloc(sizeof(deDynamicLibrary));
if (!library)
return DE_NULL;
library->handle = LoadLibrary(fileName);
if (!library->handle)
{
deFree(library);
return DE_NULL;
}
return library;
}
void deDynamicLibrary_close (deDynamicLibrary* library)
{
if (library && library->handle)
FreeLibrary(library->handle);
deFree(library);
}
deFunctionPtr deDynamicLibrary_getFunction (const deDynamicLibrary* library, const char* symbolName)
{
DE_ASSERT(library && library->handle && symbolName);
return (deFunctionPtr)GetProcAddress(library->handle, symbolName);
}
#else
# error deDynamicLibrary is not implemented on this OS
#endif