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/* $Id$ */

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#include "../stdafx.h"

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#ifdef WITH_SDL

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#include "../openttd.h"

     8

#include "../debug.h"

     9

#include "../functions.h"

    10

#include "../gfx.h"

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#include "../macros.h"

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#include "../sdl.h"

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#include "../window.h"

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#include "../network.h"

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#include "../variables.h"

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#include "sdl_v.h"

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#include <SDL.h>

    18

    19

static SDL_Surface *_sdl_screen;

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static bool _all_modes;

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    22

#define MAX_DIRTY_RECTS 100

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static SDL_Rect _dirty_rects[MAX_DIRTY_RECTS];

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static int _num_dirty_rects;

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    26

static void SdlVideoMakeDirty(int left, int top, int width, int height)

    27

{

    28

	if (_num_dirty_rects < MAX_DIRTY_RECTS) {

    29

		_dirty_rects[_num_dirty_rects].x = left;

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		_dirty_rects[_num_dirty_rects].y = top;

    31

		_dirty_rects[_num_dirty_rects].w = width;

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		_dirty_rects[_num_dirty_rects].h = height;

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	}

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	_num_dirty_rects++;

    35

}

    36

    37

static void UpdatePalette(uint start, uint count)

    38

{

    39

	SDL_Color pal[256];

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	uint i;

    41

    42

	for (i = 0; i != count; i++) {

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		pal[i].r = _cur_palette[start + i].r;

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		pal[i].g = _cur_palette[start + i].g;

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		pal[i].b = _cur_palette[start + i].b;

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		pal[i].unused = 0;

    47

	}

    48

    49

	SDL_CALL SDL_SetColors(_sdl_screen, pal, start, count);

    50

}

    51

    52

static void InitPalette(void)

    53

{

    54

	UpdatePalette(0, 256);

    55

}

    56

    57

static void CheckPaletteAnim(void)

    58

{

    59

	if (_pal_last_dirty != -1) {

    60

		UpdatePalette(_pal_first_dirty, _pal_last_dirty - _pal_first_dirty + 1);

    61

		_pal_last_dirty = -1;

    62

	}

    63

}

    64

    65

static void DrawSurfaceToScreen(void)

    66

{

    67

	int n = _num_dirty_rects;

    68

	if (n != 0) {

    69

		_num_dirty_rects = 0;

    70

		if (n > MAX_DIRTY_RECTS)

    71

			SDL_CALL SDL_UpdateRect(_sdl_screen, 0, 0, 0, 0);

    72

		else

    73

			SDL_CALL SDL_UpdateRects(_sdl_screen, n, _dirty_rects);

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	}

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}

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    77

static const uint16 default_resolutions[][2] = {

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	{ 640,  480},

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	{ 800,  600},

    80

	{1024,  768},

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	{1152,  864},

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	{1280,  800},

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	{1280,  960},

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	{1280, 1024},

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	{1400, 1050},

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	{1600, 1200},

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	{1680, 1050},

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	{1920, 1200}

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};

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    91

static void GetVideoModes(void)

    92

{

    93

	int i;

    94

	SDL_Rect **modes;

    95

    96

	modes = SDL_CALL SDL_ListModes(NULL, SDL_SWSURFACE + (_fullscreen ? SDL_FULLSCREEN : 0));

    97

    98

	if (modes == NULL)

    99

		error("sdl: no modes available");

   100

   101

	_all_modes = (modes == (void*)-1);

   102

   103

	if (_all_modes) {

   104

		// all modes available, put some default ones here

   105

		memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));

   106

		_num_resolutions = lengthof(default_resolutions);

   107

	} else {

   108

		int n = 0;

   109

		for (i = 0; modes[i]; i++) {

   110

			int w = modes[i]->w;

   111

			int h = modes[i]->h;

   112

			if (IS_INT_INSIDE(w, 640, MAX_SCREEN_WIDTH + 1) &&

   113

					IS_INT_INSIDE(h, 480, MAX_SCREEN_HEIGHT + 1)) {

   114

				int j;

   115

				for (j = 0; j < n; j++) {

   116

					if (_resolutions[j][0] == w && _resolutions[j][1] == h) break;

   117

				}

   118

   119

				if (j == n) {

   120

					_resolutions[j][0] = w;

   121

					_resolutions[j][1] = h;

   122

					if (++n == lengthof(_resolutions)) break;

   123

				}

   124

			}

   125

		}

   126

		_num_resolutions = n;

   127

		SortResolutions(_num_resolutions);

   128

	}

   129

}

   130

   131

static int GetAvailableVideoMode(int *w, int *h)

   132

{

   133

	int i;

   134

	int best;

   135

	uint delta;

   136

   137

	// all modes available?

   138

	if (_all_modes)

   139

		return 1;

   140

   141

	// is the wanted mode among the available modes?

   142

	for (i = 0; i != _num_resolutions; i++) {

   143

		if (*w == _resolutions[i][0] && *h == _resolutions[i][1])

   144

			return 1;

   145

	}

   146

   147

	// use the closest possible resolution

   148

	best = 0;

   149

	delta = abs((_resolutions[0][0] - *w) * (_resolutions[0][1] - *h));

   150

	for (i = 1; i != _num_resolutions; ++i) {

   151

		uint newdelta = abs((_resolutions[i][0] - *w) * (_resolutions[i][1] - *h));

   152

		if (newdelta < delta) {

   153

			best = i;

   154

			delta = newdelta;

   155

		}

   156

	}

   157

	*w = _resolutions[best][0];

   158

	*h = _resolutions[best][1];

   159

	return 2;

   160

}

   161

   162

extern const char _openttd_revision[];

   163

   164

static bool CreateMainSurface(int w, int h)

   165

{

   166

	SDL_Surface *newscreen;

   167

	char caption[50];

   168

   169

	GetAvailableVideoMode(&w, &h);

   170

   171

	DEBUG(driver, 1) ("sdl: using mode %dx%d", w, h);

   172

   173

	// DO NOT CHANGE TO HWSURFACE, IT DOES NOT WORK

   174

	newscreen = SDL_CALL SDL_SetVideoMode(w, h, 8, SDL_SWSURFACE | SDL_HWPALETTE | (_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE));

   175

	if (newscreen == NULL)

   176

		return false;

   177

   178

	_screen.width = newscreen->w;

   179

	_screen.height = newscreen->h;

   180

	_screen.pitch = newscreen->pitch;

   181

   182

	_sdl_screen = newscreen;

   183

	InitPalette();

   184

   185

	snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);

   186

	SDL_CALL SDL_WM_SetCaption(caption, caption);

   187

	SDL_CALL SDL_ShowCursor(0);

   188

   189

	GameSizeChanged();

   190

   191

	return true;

   192

}

   193

   194

typedef struct VkMapping {

   195

	uint16 vk_from;

   196

	byte vk_count;

   197

	byte map_to;

   198

} VkMapping;

   199

   200

#define AS(x, z) {x, 0, z}

   201

#define AM(x, y, z, w) {x, y - x, z}

   202

   203

static const VkMapping _vk_mapping[] = {

   204

	// Pageup stuff + up/down

   205

	AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),

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	AS(SDLK_UP,			WKC_UP),

   207

	AS(SDLK_DOWN,		WKC_DOWN),

   208

	AS(SDLK_LEFT,		WKC_LEFT),

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	AS(SDLK_RIGHT,	WKC_RIGHT),

   210

   211

	AS(SDLK_HOME,		WKC_HOME),

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	AS(SDLK_END,		WKC_END),

   213

   214

	AS(SDLK_INSERT,	WKC_INSERT),

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	AS(SDLK_DELETE,	WKC_DELETE),

   216

   217

	// Map letters & digits

   218

	AM(SDLK_a, SDLK_z, 'A', 'Z'),

   219

	AM(SDLK_0, SDLK_9, '0', '9'),

   220

   221

	AS(SDLK_ESCAPE,	WKC_ESC),

   222

	AS(SDLK_PAUSE,  WKC_PAUSE),

   223

	AS(SDLK_BACKSPACE,	WKC_BACKSPACE),

   224

   225

	AS(SDLK_SPACE,		WKC_SPACE),

   226

	AS(SDLK_RETURN,		WKC_RETURN),

   227

	AS(SDLK_TAB,			WKC_TAB),

   228

   229

	// Function keys

   230

	AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),

   231

   232

	// Numeric part.

   233

	// What is the virtual keycode for numeric enter??

   234

	AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),

   235

	AS(SDLK_KP_DIVIDE,		WKC_NUM_DIV),

   236

	AS(SDLK_KP_MULTIPLY,	WKC_NUM_MUL),

   237

	AS(SDLK_KP_MINUS,			WKC_NUM_MINUS),

   238

	AS(SDLK_KP_PLUS,			WKC_NUM_PLUS),

   239

	AS(SDLK_KP_ENTER,			WKC_NUM_ENTER),

   240

	AS(SDLK_KP_PERIOD,		WKC_NUM_DECIMAL)

   241

};

   242

   243

static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)

   244

{

   245

	const VkMapping *map;

   246

	uint key = 0;

   247

	for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {

   248

		if ((uint)(sym->sym - map->vk_from) <= map->vk_count) {

   249

			key = sym->sym - map->vk_from + map->map_to;

   250

			break;

   251

		}

   252

	}

   253

   254

	// check scancode for BACKQUOTE key, because we want the key left of "1", not anything else (on non-US keyboards)

   255

#if defined(WIN32) || defined(__OS2__)

   256

	if (sym->scancode == 41) key |= WKC_BACKQUOTE;

   257

#elif defined(__APPLE__)

   258

	if (sym->scancode == 10) key |= WKC_BACKQUOTE;

   259

#elif defined(__MORPHOS__)

   260

	if (sym->scancode == 0)  key |= WKC_BACKQUOTE;  // yes, that key is code '0' under MorphOS :)

   261

#elif defined(__BEOS__)

   262

	if (sym->scancode == 17)  key |= WKC_BACKQUOTE;

   263

#elif defined(__SVR4) && defined(__sun)

   264

	if (sym->scancode == 60) key |= WKC_BACKQUOTE;

   265

	if (sym->scancode == 49) key |= WKC_BACKSPACE;

   266

#elif defined(__sgi__)

   267

	if (sym->scancode == 22) key |= WKC_BACKQUOTE;

   268

#else

   269

	if (sym->scancode == 41) key |= WKC_BACKQUOTE; // Linux console

   270

	if (sym->scancode == 49) key |= WKC_BACKQUOTE;

   271

#endif

   272

   273

	// META are the command keys on mac

   274

	if (sym->mod & KMOD_META) key |= WKC_META;

   275

	if (sym->mod & KMOD_SHIFT) key |= WKC_SHIFT;

   276

	if (sym->mod & KMOD_CTRL) key |= WKC_CTRL;

   277

	if (sym->mod & KMOD_ALT) key |= WKC_ALT;

   278

	// these two lines really help porting hotkey combos. Uncomment to use -- Bjarni

   279

	//printf("scancode character pressed %d\n", sym->scancode);

   280

	//printf("unicode character pressed %d\n", sym->unicode);

   281

	return (key << 16) + sym->unicode;

   282

}

   283

   284

extern void DoExitSave(void);

   285

   286

static int PollEvent(void)

   287

{

   288

	SDL_Event ev;

   289

   290

	if (!SDL_CALL SDL_PollEvent(&ev))

   291

		return -2;

   292

   293

	switch (ev.type) {

   294

	case SDL_MOUSEMOTION:

   295

		if (_cursor.fix_at) {

   296

			int dx = ev.motion.x - _cursor.pos.x;

   297

			int dy = ev.motion.y - _cursor.pos.y;

   298

			if (dx != 0 || dy != 0) {

   299

				_cursor.delta.x += dx;

   300

				_cursor.delta.y += dy;

   301

				SDL_CALL SDL_WarpMouse(_cursor.pos.x, _cursor.pos.y);

   302

			}

   303

		} else {

   304

			_cursor.delta.x = ev.motion.x - _cursor.pos.x;

   305

			_cursor.delta.y = ev.motion.y - _cursor.pos.y;

   306

			_cursor.pos.x = ev.motion.x;

   307

			_cursor.pos.y = ev.motion.y;

   308

			_cursor.dirty = true;

   309

		}

   310

		break;

   311

   312

	case SDL_MOUSEBUTTONDOWN:

   313

		if (_rightclick_emulate && (SDL_CALL SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL)))

   314

			ev.button.button = SDL_BUTTON_RIGHT;

   315

   316

		switch (ev.button.button) {

   317

			case SDL_BUTTON_LEFT:

   318

				_left_button_down = true;

   319

				break;

   320

			case SDL_BUTTON_RIGHT:

   321

				_right_button_down = true;

   322

				_right_button_clicked = true;

   323

				break;

   324

			case SDL_BUTTON_WHEELUP:

   325

				_cursor.wheel--;

   326

				break;

   327

			case SDL_BUTTON_WHEELDOWN:

   328

				_cursor.wheel++;

   329

				break;

   330

			default:

   331

				break;

   332

		}

   333

		break;

   334

   335

	case SDL_MOUSEBUTTONUP:

   336

		if (_rightclick_emulate) {

   337

			_right_button_down = false;

   338

			_left_button_down = false;

   339

			_left_button_clicked = false;

   340

		} else if (ev.button.button == SDL_BUTTON_LEFT) {

   341

			_left_button_down = false;

   342

			_left_button_clicked = false;

   343

		} else if (ev.button.button == SDL_BUTTON_RIGHT) {

   344

			_right_button_down = false;

   345

		}

   346

		break;

   347

   348

	case SDL_ACTIVEEVENT:

   349

		if (!(ev.active.state & SDL_APPMOUSEFOCUS)) break;

   350

   351

		if (ev.active.gain) { // mouse entered the window, enable cursor

   352

			_cursor.in_window = true;

   353

		} else {

   354

			UndrawMouseCursor(); // mouse left the window, undraw cursor

   355

			_cursor.in_window = false;

   356

		}

   357

		break;

   358

   359

	case SDL_QUIT:

   360

		// do not ask to quit on the main screen

   361

		if (_game_mode != GM_MENU) {

   362

			if (_patches.autosave_on_exit) {

   363

				DoExitSave();

   364

				return 0;

   365

			} else

   366

				AskExitGame();

   367

		} else

   368

			return 0;

   369

		break;

   370

   371

		case SDL_KEYDOWN: /* Toggle full-screen on ALT + ENTER/F */

   372

		if ((ev.key.keysym.mod & (KMOD_ALT | KMOD_META)) &&

   373

				(ev.key.keysym.sym == SDLK_RETURN || ev.key.keysym.sym == SDLK_f)) {

   374

			ToggleFullScreen(!_fullscreen);

   375

		} else

   376

			_pressed_key = ConvertSdlKeyIntoMy(&ev.key.keysym);

   377

   378

		break;

   379

   380

	case SDL_VIDEORESIZE: {

   381

		int w = clamp(ev.resize.w, 64, MAX_SCREEN_WIDTH);

   382

		int h = clamp(ev.resize.h, 64, MAX_SCREEN_HEIGHT);

   383

		ChangeResInGame(w, h);

   384

		break;

   385

	}

   386

	}

   387

	return -1;

   388

}

   389

   390

static const char *SdlVideoStart(const char * const *parm)

   391

{

   392

	char buf[30];

   393

   394

	const char *s = SdlOpen(SDL_INIT_VIDEO);

   395

	if (s != NULL) return s;

   396

   397

	SDL_CALL SDL_VideoDriverName(buf, 30);

   398

	DEBUG(driver, 1) ("sdl: using driver '%s'", buf);

   399

   400

	GetVideoModes();

   401

	CreateMainSurface(_cur_resolution[0], _cur_resolution[1]);

   402

	MarkWholeScreenDirty();

   403

   404

	SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

   405

	SDL_CALL SDL_EnableUNICODE(1);

   406

	return NULL;

   407

}

   408

   409

static void SdlVideoStop(void)

   410

{

   411

	SdlClose(SDL_INIT_VIDEO);

   412

}

   413

   414

static void SdlVideoMainLoop(void)

   415

{

   416

	uint32 next_tick = SDL_CALL SDL_GetTicks() + 30;

   417

	uint32 cur_ticks;

   418

	uint32 pal_tick = 0;

   419

	int i;

   420

	uint32 mod;

   421

	int numkeys;

   422

	Uint8 *keys;

   423

   424

	for (;;) {

   425

		InteractiveRandom(); // randomness

   426

   427

		while ((i = PollEvent()) == -1) {}

   428

		if (i >= 0) return;

   429

   430

		if (_exit_game) return;

   431

   432

		mod = SDL_CALL SDL_GetModState();

   433

		keys = SDL_CALL SDL_GetKeyState(&numkeys);

   434

#if defined(_DEBUG)

   435

		if (_shift_pressed)

   436

#else

   437

		if (keys[SDLK_TAB])

   438

#endif

   439

		{

   440

			if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;

   441

		} else if (_fast_forward & 2) {

   442

			_fast_forward = 0;

   443

		}

   444

   445

		cur_ticks = SDL_CALL SDL_GetTicks();

   446

		if ((_fast_forward && !_pause) || cur_ticks > next_tick)

   447

			next_tick = cur_ticks;

   448

   449

		if (cur_ticks == next_tick) {

   450

			next_tick += 30;

   451

   452

			_ctrl_pressed = !!(mod & (KMOD_LCTRL | KMOD_RCTRL));

   453

			_shift_pressed = !!(mod & (KMOD_LSHIFT | KMOD_RSHIFT));

   454

#ifdef _DEBUG

   455

			_dbg_screen_rect = !!(mod & KMOD_CAPS);

   456

#endif

   457

   458

			// determine which directional keys are down

   459

			_dirkeys =

   460

				(keys[SDLK_LEFT]  ? 1 : 0) |

   461

				(keys[SDLK_UP]    ? 2 : 0) |

   462

				(keys[SDLK_RIGHT] ? 4 : 0) |

   463

				(keys[SDLK_DOWN]  ? 8 : 0);

   464

			GameLoop();

   465

   466

			_screen.dst_ptr = _sdl_screen->pixels;

   467

			UpdateWindows();

   468

			if (++pal_tick > 4) {

   469

				CheckPaletteAnim();

   470

				pal_tick = 1;

   471

			}

   472

			DrawSurfaceToScreen();

   473

		} else {

   474

			SDL_CALL SDL_Delay(1);

   475

			_screen.dst_ptr = _sdl_screen->pixels;

   476

			DrawTextMessage();

   477

			DrawMouseCursor();

   478

			DrawSurfaceToScreen();

   479

		}

   480

	}

   481

}

   482

   483

static bool SdlVideoChangeRes(int w, int h)

   484

{

   485

	return CreateMainSurface(w, h);

   486

}

   487

   488

static void SdlVideoFullScreen(bool full_screen)

   489

{

   490

	_fullscreen = full_screen;

   491

	GetVideoModes(); // get the list of available video modes

   492

	if (!_video_driver->change_resolution(_cur_resolution[0], _cur_resolution[1]))

   493

		_fullscreen ^= true; // switching resolution failed, put back full_screen to original status

   494

}

   495

   496

const HalVideoDriver _sdl_video_driver = {

   497

	SdlVideoStart,

   498

	SdlVideoStop,

   499

	SdlVideoMakeDirty,

   500

	SdlVideoMainLoop,

   501

	SdlVideoChangeRes,

   502

	SdlVideoFullScreen,

   503

};

   504

   505

#endif