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@@ -20,10 +20,19 @@ const char *GetDriverParam(const char *
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bool GetDriverParamBool(const char * const *parm, const char *name);
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int GetDriverParamInt(const char * const *parm, const char *name, int def);
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/** A driver for communicating with the user. */
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class Driver {
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public:
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/**
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* Start this driver.
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* @param parm Parameters passed to the driver.
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* @return NULL if everything went okay, otherwise an error message.
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*/
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virtual const char *Start(const char * const *parm) = 0;
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/**
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* Stop this driver.
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*/
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virtual void Stop() = 0;
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virtual ~Driver() { }
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@@ -37,32 +46,50 @@ public:
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DT_END, ///< Helper for iteration
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};
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/**
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* Get the name of this driver.
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* @return The name of the driver.
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*/
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virtual const char *GetName() const = 0;
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};
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DECLARE_POSTFIX_INCREMENT(Driver::Type)
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/** Base for all driver factories. */
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class DriverFactoryBase {
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private:
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Driver::Type type;
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const char *name;
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int priority;
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Driver::Type type; ///< The type of driver.
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const char *name; ///< The name of the drivers of this factory.
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int priority; ///< The priority of this factory.
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typedef std::map<const char *, DriverFactoryBase *, StringCompare> Drivers;
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typedef std::map<const char *, DriverFactoryBase *, StringCompare> Drivers; ///< Type for a map of drivers.
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/**
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* Get the map with drivers.
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*/
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static Drivers &GetDrivers()
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{
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static Drivers &s_drivers = *new Drivers();
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return s_drivers;
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}
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/**
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* Get the active driver for the given type.
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* @param type The type to get the driver for.
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* @return The active driver.
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*/
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static Driver **GetActiveDriver(Driver::Type type)
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{
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static Driver *s_driver[3] = { NULL, NULL, NULL };
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return &s_driver[type];
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}
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/**
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* Get the driver type name.
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* @param type The type of driver to get the name of.
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* @return The name of the type.
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*/
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static const char *GetDriverTypeName(Driver::Type type)
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{
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static const char * const driver_type_name[] = { "music", "sound", "video" };
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@@ -95,11 +122,13 @@ public:
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/**
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* Get a nice description of the driver-class.
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* @return The description.
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*/
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virtual const char *GetDescription() = 0;
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/**
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* Create an instance of this driver-class.
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* @return The instance.
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*/
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virtual Driver *CreateInstance() = 0;
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};
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