1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "debug.h"

     6

#include "driver.h"

     7

#include "functions.h"

     8

#include "hal.h"

     9

#include "string.h"

    10

    11

#include "music/bemidi.h"

    12

#include "music/dmusic.h"

    13

#include "music/extmidi.h"

    14

#include "music/null_m.h"

    15

#include "music/os2_m.h"

    16

#include "music/win32_m.h"

    17

#include "music/qtmidi.h"

    19

    20

#include "sound/null_s.h"

    21

#include "sound/sdl_s.h"

    22

#include "sound/cocoa_s.h"

    23

#include "sound/win32_s.h"

    24

    25

#include "video/dedicated_v.h"

    26

#include "video/null_v.h"

    27

#include "video/sdl_v.h"

    28

#include "video/cocoa_v.h"

    29

#include "video/win32_v.h"

    30

    31

typedef struct DriverDesc {

    32

	const char* name;

    33

	const char* longname;

    34

	const HalCommonDriver* drv;

    35

} DriverDesc;

    36

    37

typedef struct DriverClass {

    38

	const DriverDesc *descs;

    39

	const char *name;

    40

	const HalCommonDriver** drv;

    41

} DriverClass;

    42

    43

    44

#define M(x, y, z) { x, y, (const HalCommonDriver *)(void *)z }

    45

static const DriverDesc _music_driver_descs[] = {

    46

#ifdef __BEOS__

    47

	M("bemidi",  "BeOS MIDI Driver",        &_bemidi_music_driver),

    48

#endif

    49

#if defined(__OS2__) && !defined(__INNOTEK_LIBC__)

    50

	M("os2",     "OS/2 Music Driver",       &_os2_music_driver),

    51

#endif

    52

#ifdef WIN32_ENABLE_DIRECTMUSIC_SUPPORT

    53

	M("dmusic",  "DirectMusic MIDI Driver", &_dmusic_midi_driver),

    54

#endif

    55

#if defined(WIN32) && !defined(WINCE)

    56

	M("win32",   "Win32 MIDI Driver",       &_win32_music_driver),

    57

#endif

    58

#if defined(__APPLE__) && !defined(DEDICATED)

    59

	M("qt",      "QuickTime MIDI Driver",   &_qtime_music_driver),

    60

#endif

    61

#ifdef UNIX

    66

	M("extmidi", "External MIDI Driver",    &_extmidi_music_driver),

    67

#endif

    68

#endif

    69

	M("null",    "Null Music Driver",       &_null_music_driver),

    70

	M(NULL, NULL, NULL)

    71

};

    72

    73

static const DriverDesc _sound_driver_descs[] = {

    74

#if defined(WIN32) && !defined(WINCE)

    75

	M("win32", "Win32 WaveOut Driver", &_win32_sound_driver),

    76

#endif

    77

#ifdef WITH_SDL

    78

	M("sdl",   "SDL Sound Driver",     &_sdl_sound_driver),

    79

#endif

    80

#ifdef WITH_COCOA

    81

	M("cocoa", "Cocoa Sound Driver",   &_cocoa_sound_driver),

    82

#endif

    83

	M("null",  "Null Sound Driver",    &_null_sound_driver),

    84

	M(NULL, NULL, NULL)

    85

};

    86

    87

static const DriverDesc _video_driver_descs[] = {

    88

#ifdef WIN32

    89

	M("win32",      "Win32 GDI Video Driver", &_win32_video_driver),

    90

#endif

    91

#ifdef WITH_SDL

    92

	M("sdl",        "SDL Video Driver",       &_sdl_video_driver),

    93

#endif

    94

#ifdef WITH_COCOA

    95

	M("cocoa",      "Cocoa Video Driver",       &_cocoa_video_driver),

    96

#endif

    97

	M("null",       "Null Video Driver",      &_null_video_driver),

    98

#ifdef ENABLE_NETWORK

    99

	M("dedicated",  "Dedicated Video Driver", &_dedicated_video_driver),

   100

#endif

   101

	M(NULL, NULL, NULL)

   102

};

   103

#undef M

   104

   105

   106

#define M(x, y, z) { x, y, (const HalCommonDriver **)(void *)z }

   107

static const DriverClass _driver_classes[] = {

   108

	M(_video_driver_descs, "video", &_video_driver),

   109

	M(_sound_driver_descs, "sound", &_sound_driver),

   110

	M(_music_driver_descs, "music", &_music_driver)

   111

};

   112

#undef M

   113

   114

static const DriverDesc* GetDriverByName(const DriverDesc* dd, const char* name)

   115

{

   116

	for (; dd->name != NULL; dd++) {

   117

		if (strcmp(dd->name, name) == 0) return dd;

   118

	}

   119

	return NULL;

   120

}

   121

   122

void LoadDriver(int driver, const char *name)

   123

{

   124

	const DriverClass *dc = &_driver_classes[driver];

   125

	const DriverDesc *dd;

   126

	const char *err;

   127

   128

	if (*name == '\0') {

   129

		for (dd = dc->descs; dd->name != NULL; dd++) {

   130

			err = dd->drv->start(NULL);

   131

			if (err == NULL) break;

   132

			DEBUG(driver, 1, "Probing %s driver '%s' failed with error: %s",

   133

				dc->name, dd->name, err

   134

			);

   135

		}

   136

		if (dd->name == NULL) error("Couldn't find any suitable %s driver", dc->name);

   137

   138

		DEBUG(driver, 1, "Successfully probed %s driver '%s'", dc->name, dd->name);

   139

   140

		*dc->drv = dd->drv;

   141

	} else {

   142

		char* parm;

   143

		char buffer[256];

   144

		const char* parms[32];

   145

   146

		// Extract the driver name and put parameter list in parm

   147

		ttd_strlcpy(buffer, name, sizeof(buffer));

   148

		parm = strchr(buffer, ':');

   149

		parms[0] = NULL;

   150

		if (parm != NULL) {

   151

			uint np = 0;

   152

			// Tokenize the parm.

   153

			do {

   154

				*parm++ = '\0';

   155

				if (np < lengthof(parms) - 1)

   156

					parms[np++] = parm;

   157

				while (*parm != '\0' && *parm != ',')

   158

					parm++;

   159

			} while (*parm == ',');

   160

			parms[np] = NULL;

   161

		}

   162

		dd = GetDriverByName(dc->descs, buffer);

   163

		if (dd == NULL)

   164

			error("No such %s driver: %s\n", dc->name, buffer);

   165

   166

		if (*dc->drv != NULL) (*dc->drv)->stop();

   167

		*dc->drv = NULL;

   168

   169

		err = dd->drv->start(parms);

   170

		if (err != NULL) {

   171

			error("Unable to load driver %s(%s). The error was: %s\n",

   172

				dd->name, dd->longname, err

   173

			);

   174

		}

   175

		*dc->drv = dd->drv;

   176

	}

   177

}

   178

   179

   180

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

   181

{

   182

	size_t len;

   183

   184

	if (parm == NULL) return NULL;

   185

   186

	len = strlen(name);

   187

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

   188

		const char* p = *parm;

   189

   190

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

   191

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

   192

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

   193

		}

   194

	}

   195

	return NULL;

   196

}

   197

   198

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

   199

{

   200

	return GetDriverParam(parm, name) != NULL;

   201

}

   202

   203

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

   204

{

   205

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

   206

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

   207

}

   208

   209

   210

char *GetDriverList(char* p, const char *last)

   211

{

   212

	const DriverClass* dc;

   213

   214

	for (dc = _driver_classes; dc != endof(_driver_classes); dc++) {

   215

		const DriverDesc* dd;

   216

   217

		p += snprintf(p, last - p, "List of %s drivers:\n", dc->name);

   218

		for (dd = dc->descs; dd->name != NULL; dd++) {

   219

			p += snprintf(p, last - p, "%10s: %s\n", dd->name, dd->longname);

   220

		}

   221

		p = strecpy(p, "\n", last);

   222

	}

   223

   224

	return p;

   225

}