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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#if defined(_WIN32)
#if !defined WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
# include <windows.h>
# include <winreg.h>
#endif
#include <osl/module.h>
#include <rtl/ustring.hxx>
#include <sal/log.hxx>
#define SYM_MAP(a) { #a, reinterpret_cast<SymbolFunc *>(&a) }
namespace avmedia
{
namespace vlc
{
namespace wrapper
{
typedef void (*SymbolFunc) (void);
struct ApiMap
{
OUStringLiteral symName;
SymbolFunc *refValue;
};
#if defined( LINUX )
const char LibName[] = "libvlc.so.5";
#elif defined( MACOSX )
const char LibName[] = "/Applications/VLC.app/Contents/MacOS/lib/libvlc.dylib";
#elif defined( _WIN32 )
const char LibName[] = "libvlc.dll";
inline OUString GetVLCPath()
{
HKEY hKey;
sal_Unicode arCurrent[MAX_PATH];
DWORD dwType, dwCurrentSize = sizeof( arCurrent );
//TODO: This one will work only with LibreOffice 32-bit + VLC 32-bit on Win x86_64.
const LONG errorCore = ::RegOpenKeyExW( HKEY_LOCAL_MACHINE, L"SOFTWARE\\Wow6432Node\\VideoLAN\\VLC", 0, KEY_READ | KEY_WOW64_64KEY, &hKey );
if ( errorCore == ERROR_SUCCESS )
{
if ( ::RegQueryValueExW( hKey, L"InstallDir", nullptr, &dwType, reinterpret_cast<LPBYTE>(arCurrent), &dwCurrentSize ) == ERROR_SUCCESS &&
dwType == REG_SZ )
{
::RegCloseKey( hKey );
dwCurrentSize -= 2;
dwCurrentSize /= 2;
return OUString( arCurrent, dwCurrentSize ) + "\\";
}
::RegCloseKey( hKey );
}
return OUString();
}
#endif
template<size_t N>
bool tryLink( oslModule &aModule, const ApiMap ( &pMap )[N] )
{
for (size_t i = 0; i < N; ++i)
{
SymbolFunc aMethod = reinterpret_cast<SymbolFunc>(osl_getFunctionSymbol
( aModule, OUString( pMap[ i ].symName ).pData ));
if ( !aMethod )
{
SAL_WARN("avmedia", "Cannot load method " << pMap[ i ].symName);
*pMap[ i ].refValue = nullptr;
return false;
}
else
*pMap[ i ].refValue = aMethod;
}
return true;
}
template<size_t N>
bool InitApiMap( const ApiMap ( &pMap )[N] )
{
#if defined( LINUX ) || defined( MACOSX )
OUString const fullPath(LibName);
#elif defined( _WIN32 )
OUString const fullPath(GetVLCPath() + LibName);
#endif
SAL_INFO("avmedia", fullPath);
oslModule aModule = osl_loadModule( fullPath.pData,
SAL_LOADMODULE_DEFAULT );
if( aModule == nullptr)
{
SAL_WARN("avmedia", "Cannot load libvlc");
return false;
}
if (tryLink( aModule, pMap ))
{
return true;
}
SAL_WARN("avmedia", "Cannot load libvlc");
osl_unloadModule( aModule );
return false;
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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