tron@2186: /* $Id$ */
tron@2186: 
rubidium@10429: /** @file driver.h Base for all drivers (video, sound, music, etc). */
belugas@6451: 
tron@2171: #ifndef DRIVER_H
tron@2171: #define DRIVER_H
tron@2171: 
peter1138@7666: #include "debug.h"
rubidium@8608: #include "core/enum_type.hpp"
rubidium@8710: #include "string_func.h"
peter1138@7666: #include <map>
tron@2171: 
rubidium@7814: bool GetDriverParamBool(const char * const *parm, const char *name);
rubidium@7814: int GetDriverParamInt(const char * const *parm, const char *name, int def);
tron@2171: 
peter1138@7666: class Driver {
peter1138@7666: public:
peter1138@7666: 	virtual const char *Start(const char * const *parm) = 0;
peter1138@7666: 
peter1138@7666: 	virtual void Stop() = 0;
peter1138@7666: 
peter1138@7666: 	virtual ~Driver() { }
peter1138@7666: 
peter1138@7666: 	enum Type {
peter1138@7666: 		DT_BEGIN = 0,
peter1138@7666: 		DT_SOUND = 0,
peter1138@7666: 		DT_MUSIC,
peter1138@7666: 		DT_VIDEO,
peter1138@7666: 		DT_END,
peter1138@7666: 	};
peter1138@7666: };
peter1138@7666: 
peter1138@7666: DECLARE_POSTFIX_INCREMENT(Driver::Type);
peter1138@7666: 
peter1138@7666: 
peter1138@7666: class DriverFactoryBase {
peter1138@7666: private:
peter1138@7666: 	Driver::Type type;
smatz@11062: 	const char *name;
peter1138@7689: 	int priority;
smatz@11062: 
smatz@11062: 	struct StringCompare {
smatz@11062: 		bool operator () (const char *a, const char *b) const
smatz@11062: 		{
smatz@11062: 			return strcmp(a, b) < 0;
smatz@11062: 		}
smatz@11062: 	};
smatz@11062: 
smatz@11062: 	typedef std::map<const char *, DriverFactoryBase *, StringCompare> Drivers;
peter1138@7666: 
peter1138@7666: 	static Drivers &GetDrivers()
peter1138@7666: 	{
glx@10582: 		static Drivers &s_drivers = *new Drivers();
peter1138@7666: 		return s_drivers;
peter1138@7666: 	}
peter1138@7666: 
peter1138@7666: 	static Driver **GetActiveDriver(Driver::Type type)
peter1138@7666: 	{
peter1138@7666: 		static Driver *s_driver[3] = { NULL, NULL, NULL };
peter1138@7666: 		return &s_driver[type];
peter1138@7666: 	}
peter1138@7666: 
peter1138@7666: 	static const char *GetDriverTypeName(Driver::Type type)
peter1138@7666: 	{
peter1138@7666: 		static const char *driver_type_name[] = { "sound", "music", "video" };
peter1138@7666: 		return driver_type_name[type];
peter1138@7666: 	}
peter1138@7666: 
peter1138@7666: protected:
smatz@9340: 	void RegisterDriver(const char *name, Driver::Type type, int priority);
peter1138@7666: 
peter1138@7666: public:
peter1138@7666: 	DriverFactoryBase() :
peter1138@7666: 		name(NULL)
peter1138@7666: 	{}
peter1138@7666: 
smatz@10911: 	virtual ~DriverFactoryBase();
smatz@10479: 
smatz@10479: 	/** Shuts down all active drivers
smatz@10479: 	 */
smatz@10479: 	static void ShutdownDrivers()
smatz@10479: 	{
smatz@10479: 		for (Driver::Type dt = Driver::DT_BEGIN; dt < Driver::DT_END; dt++) {
smatz@10479: 			Driver *driver = *GetActiveDriver(dt);
smatz@10479: 			if (driver != NULL) driver->Stop();
smatz@10479: 		}
smatz@10479: 	}
peter1138@7666: 
smatz@9340: 	static const Driver *SelectDriver(const char *name, Driver::Type type);
smatz@9340: 	static char *GetDriversInfo(char *p, const char *last);
peter1138@7666: 
peter1138@7666: 	/**
peter1138@7666: 	 * Get a nice description of the driver-class.
peter1138@7666: 	 */
peter1138@7666: 	virtual const char *GetDescription() = 0;
peter1138@7666: 
peter1138@7666: 	/**
peter1138@7666: 	 * Create an instance of this driver-class.
peter1138@7666: 	 */
peter1138@7666: 	virtual Driver *CreateInstance() = 0;
peter1138@7666: };
tron@2171: 
Darkvater@2436: #endif /* DRIVER_H */