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/* $Id$ */

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/** @file driver.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "debug.h"

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#include "driver.h"

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#include "functions.h"

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#include "string.h"

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#include "sound/sound_driver.hpp"

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#include "music/music_driver.hpp"

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#include "video/video_driver.hpp"

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SoundDriver *_sound_driver;

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MusicDriver *_music_driver;

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VideoDriver *_video_driver;

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static const char* GetDriverParam(const char* const* parm, const char* name)

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{

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	size_t len;

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	if (parm == NULL) return NULL;

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	len = strlen(name);

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	for (; *parm != NULL; parm++) {

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		const char* p = *parm;

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		if (strncmp(p, name, len) == 0) {

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			if (p[len] == '=')  return p + len + 1;

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			if (p[len] == '\0') return p + len;

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		}

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	}

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	return NULL;

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}

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bool GetDriverParamBool(const char* const* parm, const char* name)

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{

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	return GetDriverParam(parm, name) != NULL;

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}

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int GetDriverParamInt(const char* const* parm, const char* name, int def)

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{

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	const char* p = GetDriverParam(parm, name);

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	return p != NULL ? atoi(p) : def;

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}