dolphin/Source/Core/Common/Src/Plugin.cpp

132 lines
3.3 KiB
C++

// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
////////////////////////////////////////////////
// This is the common Plugin class that links to the functions that are
// common to all plugins. This class is inherited by all plugin classes. But it's only created
// directly in PluginManager.cpp when we check if a plugin is valid or not.
///////////////////////////////////////////////
#include "Plugin.h"
namespace Common
{
CPlugin::~CPlugin()
{
m_hInstLib.Unload();
}
CPlugin::CPlugin(const char* _szName) : valid(false)
{
m_GetDllInfo = NULL;
m_DllConfig = NULL;
m_DllDebugger = NULL;
m_SetDllGlobals = NULL;
m_Initialize = NULL;
m_Shutdown = NULL;
m_DoState = NULL;
if (m_hInstLib.Load(_szName))
{
m_GetDllInfo = reinterpret_cast<TGetDllInfo>
(m_hInstLib.Get("GetDllInfo"));
m_DllConfig = reinterpret_cast<TDllConfig>
(m_hInstLib.Get("DllConfig"));
m_DllDebugger = reinterpret_cast<TDllDebugger>
(m_hInstLib.Get("DllDebugger"));
m_SetDllGlobals = reinterpret_cast<TSetDllGlobals>
(m_hInstLib.Get("SetDllGlobals"));
m_Initialize = reinterpret_cast<TInitialize>
(m_hInstLib.Get("Initialize"));
m_Shutdown = reinterpret_cast<TShutdown>
(m_hInstLib.Get("Shutdown"));
m_DoState = reinterpret_cast<TDoState>
(m_hInstLib.Get("DoState"));
}
// Check if the plugin has all the functions it shold have
if (m_GetDllInfo != 0 &&
m_DllConfig != 0 &&
m_DllDebugger != 0 &&
m_SetDllGlobals != 0 &&
m_Initialize != 0 &&
m_Shutdown != 0 &&
m_DoState != 0)
valid = true;
// Save the filename for this plugin
Filename = _szName;
}
void *CPlugin::LoadSymbol(const char *sym)
{
return m_hInstLib.Get(sym);
}
// GetInfo: Get DLL info
bool CPlugin::GetInfo(PLUGIN_INFO& _pluginInfo)
{
if (m_GetDllInfo != NULL) {
m_GetDllInfo(&_pluginInfo);
return(true);
}
return(false);
}
// Config: Open the Config window
void CPlugin::Config(HWND _hwnd)
{
if (m_DllConfig != NULL)
m_DllConfig(_hwnd);
}
// Debug: Open the Debugging window
void CPlugin::Debug(HWND _hwnd, bool Show)
{
if (m_DllDebugger != NULL)
m_DllDebugger(_hwnd, Show);
}
void CPlugin::SetGlobals(PLUGIN_GLOBALS* _pluginGlobals) {
if (m_SetDllGlobals != NULL)
m_SetDllGlobals(_pluginGlobals);
}
void CPlugin::DoState(unsigned char **ptr, int mode) {
if (m_DoState != NULL)
m_DoState(ptr, mode);
}
// Run Initialize() in the plugin
void CPlugin::Initialize(void *init)
{
/* We first check that we have found the Initialize() function, but there
is no restriction on running this several times */
// Uh, the above comment sounds extremely dubious.
if (m_Initialize != NULL)
m_Initialize(init);
}
void CPlugin::Shutdown()
{
if (m_Shutdown != NULL)
m_Shutdown();
}
} // end of namespace Common