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/* $Id$ */

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#include "../stdafx.h"

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#ifdef WITH_SDL

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     7

#include "../openttd.h"

     8

#include "../debug.h"

     9

#include "../gfx_func.h"

    10

#include "../sdl.h"

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#include "../variables.h"

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#include "../blitter/factory.hpp"

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#include "../network/network.h"

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#include "../core/math_func.hpp"

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#include "../core/random_func.hpp"

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#include "sdl_v.h"

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#include <SDL.h>

    18

    19

static FVideoDriver_SDL iFVideoDriver_SDL;

    20

    21

static SDL_Surface *_sdl_screen;

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static bool _all_modes;

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    24

#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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    28

void VideoDriver_SDL::MakeDirty(int left, int top, int width, int height)

    29

{

    30

	if (_num_dirty_rects < MAX_DIRTY_RECTS) {

    31

		_dirty_rects[_num_dirty_rects].x = left;

    32

		_dirty_rects[_num_dirty_rects].y = top;

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		_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++;

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}

    38

    39

static void UpdatePalette(uint start, uint count)

    40

{

    41

	SDL_Color pal[256];

    42

	uint i;

    43

    44

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

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

    46

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

    47

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

    48

		pal[i].unused = 0;

    49

	}

    50

    51

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

    52

}

    53

    54

static void InitPalette()

    55

{

    56

	UpdatePalette(0, 256);

    57

}

    58

    59

static void CheckPaletteAnim()

    60

{

    61

	if (_pal_count_dirty != 0) {

    62

		Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();

    63

    64

		switch (blitter->UsePaletteAnimation()) {

    65

			case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:

    66

				UpdatePalette(_pal_first_dirty, _pal_count_dirty);

    67

				break;

    68

    69

			case Blitter::PALETTE_ANIMATION_BLITTER:

    70

				blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);

    71

				break;

    72

    73

			case Blitter::PALETTE_ANIMATION_NONE:

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				break;

    75

    76

			default:

    77

				NOT_REACHED();

    78

		}

    79

		_pal_count_dirty = 0;

    80

	}

    81

}

    82

    83

static void DrawSurfaceToScreen()

    84

{

    85

	int n = _num_dirty_rects;

    86

	if (n != 0) {

    87

		_num_dirty_rects = 0;

    88

		if (n > MAX_DIRTY_RECTS)

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

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		else

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			SDL_CALL SDL_UpdateRects(_sdl_screen, n, _dirty_rects);

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	}

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}

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    95

static const uint16 default_resolutions[][2] = {

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	{ 640,  480},

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	{ 800,  600},

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	{1024,  768},

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	{1152,  864},

   100

	{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}

   107

};

   108

   109

static void GetVideoModes()

   110

{

   111

	int i;

   112

	SDL_Rect **modes;

   113

   114

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

   115

   116

	if (modes == NULL)

   117

		error("sdl: no modes available");

   118

   119

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

   120

   121

	if (_all_modes) {

   122

		// all modes available, put some default ones here

   123

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

   124

		_num_resolutions = lengthof(default_resolutions);

   125

	} else {

   126

		int n = 0;

   127

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

   128

			int w = modes[i]->w;

   129

			int h = modes[i]->h;

   130

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

   131

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

   132

				int j;

   133

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

   134

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

   135

				}

   136

   137

				if (j == n) {

   138

					_resolutions[j][0] = w;

   139

					_resolutions[j][1] = h;

   140

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

   141

				}

   142

			}

   143

		}

   144

		_num_resolutions = n;

   145

		SortResolutions(_num_resolutions);

   146

	}

   147

}

   148

   149

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

   150

{

   151

	int i;

   152

	int best;

   153

	uint delta;

   154

   155

	// all modes available?

   156

	if (_all_modes) return;

   157

   158

	// is the wanted mode among the available modes?

   159

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

   160

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

   161

	}

   162

   163

	// use the closest possible resolution

   164

	best = 0;

   165

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

   166

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

   167

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

   168

		if (newdelta < delta) {

   169

			best = i;

   170

			delta = newdelta;

   171

		}

   172

	}

   173

	*w = _resolutions[best][0];

   174

	*h = _resolutions[best][1];

   175

}

   176

   177

#ifndef ICON_DIR

   178

#define ICON_DIR "media"

   179

#endif

   180

   181

#ifdef WIN32

   182

/* Let's redefine the LoadBMP macro with because we are dynamically

   183

 * loading SDL and need to 'SDL_CALL' all functions */

   184

#undef SDL_LoadBMP

   185

#define SDL_LoadBMP(file)	SDL_LoadBMP_RW(SDL_CALL SDL_RWFromFile(file, "rb"), 1)

   186

#endif

   187

   188

static bool CreateMainSurface(int w, int h)

   189

{

   190

	extern const char _openttd_revision[];

   191

	SDL_Surface *newscreen, *icon;

   192

	char caption[50];

   193

	int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();

   194

   195

	GetAvailableVideoMode(&w, &h);

   196

   197

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

   198

   199

	if (bpp == 0) error("Can't use a blitter that blits 0 bpp for normal visuals");

   200

   201

	/* Give the application an icon */

   202

	icon = SDL_CALL SDL_LoadBMP(ICON_DIR PATHSEP "openttd.32.bmp");

   203

	if (icon != NULL) {

   204

		/* Get the colourkey, which will be magenta */

   205

		uint32 rgbmap = SDL_CALL SDL_MapRGB(icon->format, 255, 0, 255);

   206

   207

		SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);

   208

		SDL_CALL SDL_WM_SetIcon(icon, NULL);

   209

		SDL_CALL SDL_FreeSurface(icon);

   210

	}

   211

   212

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

   213

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

   214

	if (newscreen == NULL)

   215

		return false;

   216

   217

	_screen.width = newscreen->w;

   218

	_screen.height = newscreen->h;

   219

	_screen.pitch = newscreen->pitch / (bpp / 8);

   220

	_sdl_screen = newscreen;

   221

	InitPalette();

   222

   223

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

   224

	SDL_CALL SDL_WM_SetCaption(caption, caption);

   225

	SDL_CALL SDL_ShowCursor(0);

   226

   227

	GameSizeChanged();

   228

   229

	return true;

   230

}

   231

   232

struct VkMapping {

   233

	uint16 vk_from;

   234

	byte vk_count;

   235

	byte map_to;

   236

};

   237

   238

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

   239

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

   240

   241

static const VkMapping _vk_mapping[] = {

   242

	/* Pageup stuff + up/down */

   243

	AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),

   244

	AS(SDLK_UP,     WKC_UP),

   245

	AS(SDLK_DOWN,   WKC_DOWN),

   246

	AS(SDLK_LEFT,   WKC_LEFT),

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	AS(SDLK_RIGHT,  WKC_RIGHT),

   248

   249

	AS(SDLK_HOME,   WKC_HOME),

   250

	AS(SDLK_END,    WKC_END),

   251

   252

	AS(SDLK_INSERT, WKC_INSERT),

   253

	AS(SDLK_DELETE, WKC_DELETE),

   254

   255

	/* Map letters & digits */

   256

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

   257

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

   258

   259

	AS(SDLK_ESCAPE,    WKC_ESC),

   260

	AS(SDLK_PAUSE,     WKC_PAUSE),

   261

	AS(SDLK_BACKSPACE, WKC_BACKSPACE),

   262

   263

	AS(SDLK_SPACE,     WKC_SPACE),

   264

	AS(SDLK_RETURN,    WKC_RETURN),

   265

	AS(SDLK_TAB,       WKC_TAB),

   266

   267

	/* Function keys */

   268

	AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),

   269

   270

	/* Numeric part. */

   271

	AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),

   272

	AS(SDLK_KP_DIVIDE,   WKC_NUM_DIV),

   273

	AS(SDLK_KP_MULTIPLY, WKC_NUM_MUL),

   274

	AS(SDLK_KP_MINUS,    WKC_NUM_MINUS),

   275

	AS(SDLK_KP_PLUS,     WKC_NUM_PLUS),

   276

	AS(SDLK_KP_ENTER,    WKC_NUM_ENTER),

   277

	AS(SDLK_KP_PERIOD,   WKC_NUM_DECIMAL),

   278

   279

	/* Other non-letter keys */

   280

	AS(SDLK_SLASH,        WKC_SLASH),

   281

	AS(SDLK_SEMICOLON,    WKC_SEMICOLON),

   282

	AS(SDLK_EQUALS,       WKC_EQUALS),

   283

	AS(SDLK_LEFTBRACKET,  WKC_L_BRACKET),

   284

	AS(SDLK_BACKSLASH,    WKC_BACKSLASH),

   285

	AS(SDLK_RIGHTBRACKET, WKC_R_BRACKET),

   286

   287

	AS(SDLK_QUOTE,   WKC_SINGLEQUOTE),

   288

	AS(SDLK_COMMA,   WKC_COMMA),

   289

	AS(SDLK_MINUS,   WKC_MINUS),

   290

	AS(SDLK_PERIOD,  WKC_PERIOD)

   291

};

   292

   293

static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)

   294

{

   295

	const VkMapping *map;

   296

	uint key = 0;

   297

   298

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

   299

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

   300

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

   301

			break;

   302

		}

   303

	}

   304

   305

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

   306

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

   307

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

   308

#elif defined(__APPLE__)

   309

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

   310

#elif defined(__MORPHOS__)

   311

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

   312

#elif defined(__BEOS__)

   313

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

   314

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

   315

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

   316

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

   317

#elif defined(__sgi__)

   318

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

   319

#else

   320

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

   321

#endif

   322

   323

	// META are the command keys on mac

   324

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

   325

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

   326

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

   327

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

   328

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

   329

#if 0

   330

	DEBUG(driver, 0, "Scancode character pressed %u", sym->scancode);

   331

	DEBUG(driver, 0, "Unicode character pressed %u", sym->unicode);

   332

#endif

   333

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

   334

}

   335

   336

static int PollEvent()

   337

{

   338

	SDL_Event ev;

   339

   340

	if (!SDL_CALL SDL_PollEvent(&ev)) return -2;

   341

   342

	switch (ev.type) {

   343

		case SDL_MOUSEMOTION:

   344

			if (_cursor.fix_at) {

   345

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

   346

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

   347

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

   348

					_cursor.delta.x += dx;

   349

					_cursor.delta.y += dy;

   350

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

   351

				}

   352

			} else {

   353

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

   354

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

   355

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

   356

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

   357

				_cursor.dirty = true;

   358

			}

   359

			HandleMouseEvents();

   360

			break;

   361

   362

		case SDL_MOUSEBUTTONDOWN:

   363

			if (_rightclick_emulate && SDL_CALL SDL_GetModState() & KMOD_CTRL) {

   364

				ev.button.button = SDL_BUTTON_RIGHT;

   365

			}

   366

   367

			switch (ev.button.button) {

   368

				case SDL_BUTTON_LEFT:

   369

					_left_button_down = true;

   370

					break;

   371

   372

				case SDL_BUTTON_RIGHT:

   373

					_right_button_down = true;

   374

					_right_button_clicked = true;

   375

					break;

   376

   377

				case SDL_BUTTON_WHEELUP:   _cursor.wheel--; break;

   378

				case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;

   379

   380

				default: break;

   381

			}

   382

			HandleMouseEvents();

   383

			break;

   384

   385

		case SDL_MOUSEBUTTONUP:

   386

			if (_rightclick_emulate) {

   387

				_right_button_down = false;

   388

				_left_button_down = false;

   389

				_left_button_clicked = false;

   390

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

   391

				_left_button_down = false;

   392

				_left_button_clicked = false;

   393

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

   394

				_right_button_down = false;

   395

			}

   396

			HandleMouseEvents();

   397

			break;

   398

   399

		case SDL_ACTIVEEVENT:

   400

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

   401

   402

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

   403

				_cursor.in_window = true;

   404

			} else {

   405

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

   406

				_cursor.in_window = false;

   407

			}

   408

			break;

   409

   410

		case SDL_QUIT: HandleExitGameRequest(); break;

   411

   412

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

   413

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

   414

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

   415

				ToggleFullScreen(!_fullscreen);

   416

			} else {

   417

				HandleKeypress(ConvertSdlKeyIntoMy(&ev.key.keysym));

   418

			}

   419

			break;

   420

   421

		case SDL_VIDEORESIZE: {

   422

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

   423

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

   424

			ChangeResInGame(w, h);

   425

			break;

   426

		}

   427

	}

   428

	return -1;

   429

}

   430

   431

const char *VideoDriver_SDL::Start(const char * const *parm)

   432

{

   433

	char buf[30];

   434

   435

	const char *s = SdlOpen(SDL_INIT_VIDEO);

   436

	if (s != NULL) return s;

   437

   438

	SDL_CALL SDL_VideoDriverName(buf, 30);

   439

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

   440

   441

	GetVideoModes();

   442

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

   443

	MarkWholeScreenDirty();

   444

   445

	SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

   446

	SDL_CALL SDL_EnableUNICODE(1);

   447

	return NULL;

   448

}

   449

   450

void VideoDriver_SDL::Stop()

   451

{

   452

	SdlClose(SDL_INIT_VIDEO);

   453

}

   454

   455

void VideoDriver_SDL::MainLoop()

   456

{

   457

	uint32 cur_ticks = SDL_CALL SDL_GetTicks();

   458

	uint32 last_cur_ticks = cur_ticks;

   459

	uint32 next_tick = cur_ticks + 30;

   460

	uint32 pal_tick = 0;

   461

	uint32 mod;

   462

	int numkeys;

   463

	Uint8 *keys;

   464

   465

	for (;;) {

   466

		uint32 prev_cur_ticks = cur_ticks; // to check for wrapping

   467

		InteractiveRandom(); // randomness

   468

   469

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

   470

		if (_exit_game) return;

   471

   472

		mod = SDL_CALL SDL_GetModState();

   473

		keys = SDL_CALL SDL_GetKeyState(&numkeys);

   474

#if defined(_DEBUG)

   475

		if (_shift_pressed)

   476

#else

   477

		/* Speedup when pressing tab, except when using ALT+TAB

   478

		 * to switch to another application */

   479

		if (keys[SDLK_TAB] && (mod & KMOD_ALT) == 0)

   480

#endif

   481

		{

   482

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

   483

		} else if (_fast_forward & 2) {

   484

			_fast_forward = 0;

   485

		}

   486

   487

		cur_ticks = SDL_CALL SDL_GetTicks();

   488

		if (cur_ticks >= next_tick || (_fast_forward && !_pause_game) || cur_ticks < prev_cur_ticks) {

   489

			_realtime_tick += cur_ticks - last_cur_ticks;

   490

			last_cur_ticks = cur_ticks;

   491

			next_tick = cur_ticks + 30;

   492

   493

			bool old_ctrl_pressed = _ctrl_pressed;

   494

   495

			_ctrl_pressed  = !!(mod & KMOD_CTRL);

   496

			_shift_pressed = !!(mod & KMOD_SHIFT);

   497

   498

			// determine which directional keys are down

   499

			_dirkeys =

   500

				(keys[SDLK_LEFT]  ? 1 : 0) |

   501

				(keys[SDLK_UP]    ? 2 : 0) |

   502

				(keys[SDLK_RIGHT] ? 4 : 0) |