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@ r13949:666a7220b4aa
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Location: cpp/openttd-patchpack/source/src/driver.h
r13949:666a7220b4aa
2.6 KiB
text/x-c
(svn r18495) -Codechange: make sure we don't taint the vehicle cache with finding refit options and unmagify a constant
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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.
* OpenTTD 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 for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file driver.h Base for all drivers (video, sound, music, etc). */
#ifndef DRIVER_H
#define DRIVER_H
#include "core/enum_type.hpp"
#include "core/string_compare_type.hpp"
#include "string_func.h"
#include <map>
const char *GetDriverParam(const char * const *parm, const char *name);
bool GetDriverParamBool(const char * const *parm, const char *name);
int GetDriverParamInt(const char * const *parm, const char *name, int def);
class Driver {
public:
virtual const char *Start(const char * const *parm) = 0;
virtual void Stop() = 0;
virtual ~Driver() { }
enum Type {
DT_BEGIN = 0,
DT_SOUND = 0,
DT_MUSIC,
DT_VIDEO,
DT_END,
};
virtual const char *GetName() const = 0;
};
DECLARE_POSTFIX_INCREMENT(Driver::Type);
class DriverFactoryBase {
private:
Driver::Type type;
const char *name;
int priority;
typedef std::map<const char *, DriverFactoryBase *, StringCompare> Drivers;
static Drivers &GetDrivers()
{
static Drivers &s_drivers = *new Drivers();
return s_drivers;
}
static Driver **GetActiveDriver(Driver::Type type)
{
static Driver *s_driver[3] = { NULL, NULL, NULL };
return &s_driver[type];
}
static const char *GetDriverTypeName(Driver::Type type)
{
static const char * const driver_type_name[] = { "sound", "music", "video" };
return driver_type_name[type];
}
protected:
void RegisterDriver(const char *name, Driver::Type type, int priority);
public:
DriverFactoryBase() :
name(NULL)
{}
virtual ~DriverFactoryBase();
/** Shuts down all active drivers
*/
static void ShutdownDrivers()
{
for (Driver::Type dt = Driver::DT_BEGIN; dt < Driver::DT_END; dt++) {
Driver *driver = *GetActiveDriver(dt);
if (driver != NULL) driver->Stop();
}
}
static Driver *SelectDriver(const char *name, Driver::Type type);
static char *GetDriversInfo(char *p, const char *last);
/**
* Get a nice description of the driver-class.
*/
virtual const char *GetDescription() = 0;
/**
* Create an instance of this driver-class.
*/
virtual Driver *CreateInstance() = 0;
};
#endif /* DRIVER_H */
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