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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"

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#include "../debug.h"

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#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/network.h"

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#include "../variables.h"

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#include "sdl_v.h"

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#include <SDL.h>

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    20

static SDL_Surface *_sdl_screen;

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static bool _all_modes;

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    23

#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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    27

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

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{

    29

	if (_num_dirty_rects < MAX_DIRTY_RECTS) {

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		_dirty_rects[_num_dirty_rects].x = left;

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		_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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}

    37

    38

static void UpdatePalette(uint start, uint count)

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{

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	SDL_Color pal[256];

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	uint i;

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    47

	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;

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	}

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    54

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

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}

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    57

static void InitPalette()

    58

{

    59

	UpdatePalette(0, 256);

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}

    61

    62

static void CheckPaletteAnim()

    63

{

    64

	if (_pal_last_dirty != -1) {

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		UpdatePalette(_pal_first_dirty, _pal_last_dirty - _pal_first_dirty + 1);

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		_pal_last_dirty = -1;

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	}

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}

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    70

static void DrawSurfaceToScreen()

    71

{

    72

	int n = _num_dirty_rects;

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	if (n != 0) {

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		_num_dirty_rects = 0;

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		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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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},

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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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    96

static void GetVideoModes()

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{

    98

	int i;

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	SDL_Rect **modes;

   100

   101

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

   102

   103

	if (modes == NULL)

   104

		error("sdl: no modes available");

   105

   106

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

   107

   108

	if (_all_modes) {

   109

		// all modes available, put some default ones here

   110

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

   111

		_num_resolutions = lengthof(default_resolutions);

   112

	} else {

   113

		int n = 0;

   114

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

   115

			int w = modes[i]->w;

   116

			int h = modes[i]->h;

   117

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

   118

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

   119

				int j;

   120

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

   121

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

   122

				}

   123

   124

				if (j == n) {

   125

					_resolutions[j][0] = w;

   126

					_resolutions[j][1] = h;

   127

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

   128

				}

   129

			}

   130

		}

   131

		_num_resolutions = n;

   132

		SortResolutions(_num_resolutions);

   133

	}

   134

}

   135

   136

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

   137

{

   138

	int i;

   139

	int best;

   140

	uint delta;

   141

   142

	// all modes available?

   143

	if (_all_modes) return;

   144

   145

	// is the wanted mode among the available modes?

   146

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

   147

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

   148

	}

   149

   150

	// use the closest possible resolution

   151

	best = 0;

   152

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

   153

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

   154

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

   155

		if (newdelta < delta) {

   156

			best = i;

   157

			delta = newdelta;

   158

		}

   159

	}

   160

	*w = _resolutions[best][0];

   161

	*h = _resolutions[best][1];

   162

}

   163

   164

#ifndef ICON_DIR

   165

#define ICON_DIR "media"

   166

#endif

   167

   168

#ifdef WIN32

   169

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

   170

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

   171

#undef SDL_LoadBMP

   172

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

   173

#endif

   174

   175

static bool CreateMainSurface(int w, int h)

   176

{

   177

	extern const char _openttd_revision[];

   178

	SDL_Surface *newscreen, *icon;

   179

	char caption[50];

   181

   182

	GetAvailableVideoMode(&w, &h);

   183

   187

   188

	/* Give the application an icon */

   189

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

   190

	if (icon != NULL) {

   191

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

   192

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

   193

   194

		SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);

   195

		SDL_CALL SDL_WM_SetIcon(icon, NULL);

   196

		SDL_CALL SDL_FreeSurface(icon);

   197

	}

   198

   199

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

   201

	if (newscreen == NULL)

   202

		return false;

   203

   204

	_screen.width = newscreen->w;

   205

	_screen.height = newscreen->h;

   207

	_sdl_screen = newscreen;

   208

	InitPalette();

   209

   210

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

   211

	SDL_CALL SDL_WM_SetCaption(caption, caption);

   212

	SDL_CALL SDL_ShowCursor(0);

   213

   214

	GameSizeChanged();

   215

   216

	return true;

   217

}

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   219

struct VkMapping {

   220

	uint16 vk_from;

   221

	byte vk_count;

   222

	byte map_to;

   223

};

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   225

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

   226

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

   227

   228

static const VkMapping _vk_mapping[] = {

   229

	// Pageup stuff + up/down

   230

	AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),

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	AS(SDLK_UP,     WKC_UP),

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	AS(SDLK_DOWN,   WKC_DOWN),

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	AS(SDLK_LEFT,   WKC_LEFT),

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	AS(SDLK_RIGHT,  WKC_RIGHT),

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   236

	AS(SDLK_HOME,   WKC_HOME),

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	AS(SDLK_END,    WKC_END),

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   239

	AS(SDLK_INSERT, WKC_INSERT),

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	AS(SDLK_DELETE, WKC_DELETE),

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   242

	// Map letters & digits

   243

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

   244

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

   245

   246

	AS(SDLK_ESCAPE,    WKC_ESC),

   247

	AS(SDLK_PAUSE,     WKC_PAUSE),

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	AS(SDLK_BACKSPACE, WKC_BACKSPACE),

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   250

	AS(SDLK_SPACE,     WKC_SPACE),

   251

	AS(SDLK_RETURN,    WKC_RETURN),

   252

	AS(SDLK_TAB,       WKC_TAB),

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   254

	// Function keys

   255

	AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),

   256

   257

	// Numeric part.

   258

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

   259

	AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),

   260

	AS(SDLK_KP_DIVIDE,   WKC_NUM_DIV),

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	AS(SDLK_KP_MULTIPLY, WKC_NUM_MUL),

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	AS(SDLK_KP_MINUS,    WKC_NUM_MINUS),

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	AS(SDLK_KP_PLUS,     WKC_NUM_PLUS),

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	AS(SDLK_KP_ENTER,    WKC_NUM_ENTER),

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	AS(SDLK_KP_PERIOD,   WKC_NUM_DECIMAL)

   266

};

   267

   268

static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)

   269

{

   270

	const VkMapping *map;

   271

	uint key = 0;

   272

   273

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

   274

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

   275

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

   276

			break;

   277

		}

   278

	}

   279

   280

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

   281

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

   282

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

   283

#elif defined(__APPLE__)

   284

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

   285

#elif defined(__MORPHOS__)

   286

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

   287

#elif defined(__BEOS__)

   288

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

   289

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

   290

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

   291

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

   292

#elif defined(__sgi__)

   293

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

   294

#else

   295

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

   296

#endif

   297

   298

	// META are the command keys on mac

   299

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

   300

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

   301

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

   302

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

   303

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

   304

#if 0

   305

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

   306

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

   307

#endif

   308

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

   309

}

   310

   311

static int PollEvent()

   312

{

   313

	SDL_Event ev;

   314

   315

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

   316

   317

	switch (ev.type) {

   318

		case SDL_MOUSEMOTION:

   319

			if (_cursor.fix_at) {

   320

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

   321

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

   322

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

   323

					_cursor.delta.x += dx;

   324

					_cursor.delta.y += dy;

   325

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

   326

				}

   327

			} else {

   328

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

   329

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

   330

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

   331

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

   332

				_cursor.dirty = true;

   333

			}

   334

			HandleMouseEvents();

   335

			break;

   336

   337

		case SDL_MOUSEBUTTONDOWN:

   338

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

   339

				ev.button.button = SDL_BUTTON_RIGHT;

   340

			}

   341

   342

			switch (ev.button.button) {

   343

				case SDL_BUTTON_LEFT:

   344

					_left_button_down = true;

   345

					break;

   346

   347

				case SDL_BUTTON_RIGHT:

   348

					_right_button_down = true;

   349

					_right_button_clicked = true;

   350

					break;

   351

   352

				case SDL_BUTTON_WHEELUP:   _cursor.wheel--; break;

   353

				case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;

   354

   355

				default: break;

   356

			}

   357

			HandleMouseEvents();

   358

			break;

   359

   360

		case SDL_MOUSEBUTTONUP:

   361

			if (_rightclick_emulate) {

   362

				_right_button_down = false;

   363

				_left_button_down = false;

   364

				_left_button_clicked = false;

   365

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

   366

				_left_button_down = false;

   367

				_left_button_clicked = false;

   368

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

   369

				_right_button_down = false;

   370

			}

   371

			HandleMouseEvents();

   372

			break;

   373

   374

		case SDL_ACTIVEEVENT:

   375

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

   376

   377

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

   378

				_cursor.in_window = true;

   379

			} else {

   380

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

   381

				_cursor.in_window = false;

   382

			}

   383

			break;

   384

   385

		case SDL_QUIT: HandleExitGameRequest(); break;

   386

   387

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

   388

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

   389

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

   390

				ToggleFullScreen(!_fullscreen);

   391

			} else {

   392

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

   393

			}

   394

			break;

   395

   396

		case SDL_VIDEORESIZE: {

   397

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

   398

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

   399

			ChangeResInGame(w, h);

   400

			break;

   401

		}

   402

	}

   403

	return -1;

   404

}

   405

   406

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

   407

{

   408

	char buf[30];

   409

   410

	const char *s = SdlOpen(SDL_INIT_VIDEO);

   411

	if (s != NULL) return s;

   412

   413

	SDL_CALL SDL_VideoDriverName(buf, 30);

   414

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

   415

   416

	GetVideoModes();

   417

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

   418

	MarkWholeScreenDirty();

   419

   420

	SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

   421

	SDL_CALL SDL_EnableUNICODE(1);

   422

	return NULL;

   423

}

   424

   425

static void SdlVideoStop()

   426

{

   427

	SdlClose(SDL_INIT_VIDEO);

   428

}

   429

   430

static void SdlVideoMainLoop()

   431

{

   432

	uint32 cur_ticks = SDL_CALL SDL_GetTicks();

   433

	uint32 next_tick = cur_ticks + 30;

   434

	uint32 pal_tick = 0;

   435

	uint32 mod;

   436

	int numkeys;

   437

	Uint8 *keys;

   438

   439

	for (;;) {

   440

		uint32 prev_cur_ticks = cur_ticks; // to check for wrapping

   441

		InteractiveRandom(); // randomness

   442

   443

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

   444

		if (_exit_game) return;

   445

   446

		mod = SDL_CALL SDL_GetModState();

   447

		keys = SDL_CALL SDL_GetKeyState(&numkeys);

   448

#if defined(_DEBUG)

   449

		if (_shift_pressed)

   450

#else

   451

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

   452

		 * to switch to another application */

   453

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

   454

#endif

   455

		{

   456

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

   457

		} else if (_fast_forward & 2) {

   458

			_fast_forward = 0;

   459

		}

   460

   461

		cur_ticks = SDL_CALL SDL_GetTicks();

   462

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

   463

			next_tick = cur_ticks + 30;

   464

   465

			_ctrl_pressed  = !!(mod & KMOD_CTRL);

   466

			_shift_pressed = !!(mod & KMOD_SHIFT);

   467

#ifdef _DEBUG

   468

			_dbg_screen_rect = !!(mod & KMOD_CAPS);

   469

#endif

   470

   471

			// determine which directional keys are down

   472

			_dirkeys =

   473

				(keys[SDLK_LEFT]  ? 1 : 0) |

   474

				(keys[SDLK_UP]    ? 2 : 0) |

   475

				(keys[SDLK_RIGHT] ? 4 : 0) |

   476

				(keys[SDLK_DOWN]  ? 8 : 0);

   477

			GameLoop();

   478

   480

			UpdateWindows();

   481

			if (++pal_tick > 4) {

   482

				CheckPaletteAnim();

   483

				pal_tick = 1;

   484

			}

   485

			DrawSurfaceToScreen();

   486

		} else {

   487

			SDL_CALL SDL_Delay(1);

   489

			DrawTextMessage();

   490

			DrawMouseCursor();

   491

			DrawSurfaceToScreen();