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118 lines
2.9 KiB
118 lines
2.9 KiB
/*-------------------------------------------------------------------------
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* drawElements Utility Library
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* ----------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Dynamic link library abstraction.
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*//*--------------------------------------------------------------------*/
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#include "deDynamicLibrary.h"
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#include "deMemory.h"
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#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)
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/* Posix implementation. */
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#include <dlfcn.h>
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struct deDynamicLibrary_s
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{
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void* libHandle;
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};
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deDynamicLibrary* deDynamicLibrary_open (const char* fileName)
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{
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deDynamicLibrary* library = (deDynamicLibrary*)deCalloc(sizeof(deDynamicLibrary));
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if (!library)
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return DE_NULL;
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library->libHandle = dlopen(fileName, RTLD_LAZY);
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if (!library->libHandle)
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{
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deFree(library);
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return DE_NULL;
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}
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return library;
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}
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void deDynamicLibrary_close (deDynamicLibrary* library)
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{
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if (library && library->libHandle)
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dlclose(library->libHandle);
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deFree(library);
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}
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deFunctionPtr deDynamicLibrary_getFunction (const deDynamicLibrary* library, const char* symbolName)
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{
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/* C forbids direct cast from object pointer to function pointer */
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union
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{
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deFunctionPtr funcPtr;
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void* objPtr;
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} ptr;
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DE_ASSERT(library && library->libHandle && symbolName);
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ptr.objPtr = dlsym(library->libHandle, symbolName);
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return ptr.funcPtr;
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}
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#elif (DE_OS == DE_OS_WIN32)
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/* Win32 implementation. */
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#define WIN32_LEAN_AND_MEAN
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#define VC_EXTRALEAN
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#include <windows.h>
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struct deDynamicLibrary_s
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{
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HINSTANCE handle;
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};
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deDynamicLibrary* deDynamicLibrary_open (const char* fileName)
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{
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deDynamicLibrary* library = (deDynamicLibrary*)deCalloc(sizeof(deDynamicLibrary));
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if (!library)
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return DE_NULL;
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library->handle = LoadLibrary(fileName);
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if (!library->handle)
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{
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deFree(library);
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return DE_NULL;
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}
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return library;
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}
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void deDynamicLibrary_close (deDynamicLibrary* library)
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{
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if (library && library->handle)
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FreeLibrary(library->handle);
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deFree(library);
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}
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deFunctionPtr deDynamicLibrary_getFunction (const deDynamicLibrary* library, const char* symbolName)
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{
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DE_ASSERT(library && library->handle && symbolName);
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return (deFunctionPtr)GetProcAddress(library->handle, symbolName);
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}
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#else
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# error deDynamicLibrary is not implemented on this OS
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#endif
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