Plugins.h

#ifndef __DEITOOLSPLUGIN_H__
#define __DEITOOLSPLUGIN_H__
 
#ifndef MOOTOOLS_NO_PLUGINS
#include "FileInfo.h"
#endif
 
BEGIN_MOOTOOLS_NAMESPACE
 
#ifndef MOOTOOLS_NO_PLUGINS
 
#ifdef __WINDOWS__
#define xPluginHandle HINSTANCE
#elif defined(__LINUX__) || defined(__APPLE__)
#define xPluginHandle void *
#endif
 
class CFileIo;
typedef struct IOGetParserInfo
{
    // Input
    CFileIo *io;
    unsigned int fileclass;
 
    // Output
    CFileParser *parser;
} IOGetParserInfo;
 
typedef struct PluginInfo
{
    xPluginHandle pluginHandle;
    void *procAdress;
 
    PluginInfo()
    {
        pluginHandle = NULL;
        procAdress = NULL;
    }
 
    PluginInfo(xPluginHandle hInstance, void *procAdress)
    {
        this->pluginHandle = hInstance;
        this->procAdress = procAdress;
    }
} PluginInfo;
 
#define MAKE_MOOTOOLS_VERSION_ID(a, b) ((unsigned int)(((unsigned short)a << 16)|((unsigned short)b)))
#define MOOTOOLS_PLUGIN_VERSION MAKE_MOOTOOLS_VERSION_ID(5, 0)
#define MOOTOOLS_PLUGIN_VERSION_LOW(a) ((unsigned short)a & 0xFFFF)
#define MOOTOOLS_PLUGIN_VERSION_HIGH(a) ((unsigned short)(a >> 16))
 
#define IO_BITMAP_PARSER_PLUGIN_PROC_ADRESS "InitBitmapParser"
#define IO_3D_PARSER_PLUGIN_PROC_ADRESS "Init3DParser"
 
// Common function and structure for plugin
// IO plugins
class CFileIo;
typedef struct IOInitPluginInfo
{
    // Output
    CXArray<CFileExt, CFileExt&> fileExtInfo;
} IOInitPluginInfo;
 
DLL_TOOLSFUNCTION void RegisterIOPlugins(unsigned int kindOfFile, const CXString& dllPath = CXString());
DLL_TOOLSFUNCTION void FreeIOPlugins(unsigned int kindOfFile);
void RegisterIOPlugins(LPCSTR procAdress, unsigned int kindOfFile, const CXString& dllPath = CXString());
void FreeIOPlugins(LPCSTR procAdress);
 
// Plugins
DLL_TOOLSFUNCTION int FilterPlugins(unsigned int fileclass); // Only allow the given class. Call it repeateadly to add several classes
DLL_TOOLSFUNCTION void SetPluginsDirectory(const CXString& path, bool addPluginDir); // Return the plugin directory. By default this is the application path. It automatically adds /plugins to the specified dir if needed
DLL_TOOLSFUNCTION CXString GetPluginsDirectory();
DLL_TOOLSFUNCTION bool LoadPlugin(const CXString& path, LPCSTR initProcName, PluginInfo& info);
DLL_TOOLSFUNCTION void FreePlugin(xPluginHandle pluginHandle, LPCSTR initProcName, bool dontLoadAgain);
DLL_TOOLSFUNCTION void FreePlugins(LPCSTR initProcName);
 
// These could be used to declare plugins
#ifdef __WINDOWS__
#define PLUGINEXPORT_FUNCTION extern "C" __declspec(dllexport) 
#endif
 
#if defined(__APPLE__) || defined(__LINUX__)
#define PLUGINEXPORT_FUNCTION extern "C" __attribute__((visibility("default")))
#endif
 
// Common library version functions
PLUGINEXPORT_FUNCTION unsigned int MootoolsGetPluginVersion();
 
// Specific library entry point
PLUGINEXPORT_FUNCTION bool InitBitmapParser(IoPluginMode mode, void *data);
PLUGINEXPORT_FUNCTION bool Init3DParser(IoPluginMode mode, void *data);
 
#endif // MOOTOOLS_NO_PLUGINS
 
END_MOOTOOLS_NAMESPACE
 
#endif //__DEITOOLSPLUGIN_H__