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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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    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

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

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{

    30

	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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}

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    39

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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    48

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

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}

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    58

static void InitPalette()

    59

{

    60

	UpdatePalette(0, 256);

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}

    62

    63

static void CheckPaletteAnim()

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{

    65

	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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    71

static void DrawSurfaceToScreen()

    72

{

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	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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static void GetVideoModes()

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{

    99

	int i;

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	SDL_Rect **modes;

   101

   102

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

   103

   104

	if (modes == NULL)

   105

		error("sdl: no modes available");

   106

   107

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

   108

   109

	if (_all_modes) {

   110

		// all modes available, put some default ones here

   111

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

   112

		_num_resolutions = lengthof(default_resolutions);

   113

	} else {

   114

		int n = 0;

   115

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

   116

			int w = modes[i]->w;

   117

			int h = modes[i]->h;

   118

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

   119

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

   120

				int j;

   121

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

   122

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

   123

				}

   124

   125

				if (j == n) {

   126

					_resolutions[j][0] = w;

   127

					_resolutions[j][1] = h;

   128

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

   129

				}

   130

			}

   131

		}

   132

		_num_resolutions = n;

   133

		SortResolutions(_num_resolutions);

   134

	}

   135

}

   136

   137

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

   138

{

   139

	int i;

   140

	int best;

   141

	uint delta;

   142

   143

	// all modes available?

   144

	if (_all_modes) return;

   145

   146

	// is the wanted mode among the available modes?

   147

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

   148

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

   149

	}

   150

   151

	// use the closest possible resolution

   152

	best = 0;

   153

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

   154

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

   155

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

   156

		if (newdelta < delta) {

   157

			best = i;

   158

			delta = newdelta;

   159

		}

   160

	}

   161

	*w = _resolutions[best][0];

   162

	*h = _resolutions[best][1];

   163

}

   164

   165

#ifndef ICON_DIR

   166

#define ICON_DIR "media"

   167

#endif

   168

   169

#ifdef WIN32

   170

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

   171

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

   172

#undef SDL_LoadBMP

   173

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

   174

#endif

   175

   176

static bool CreateMainSurface(int w, int h)

   177

{

   178

	extern const char _openttd_revision[];

   179

	SDL_Surface *newscreen, *icon;

   180

	char caption[50];

   182

   183

	GetAvailableVideoMode(&w, &h);

   184

   188

   189

	/* Give the application an icon */

   190

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

   191

	if (icon != NULL) {

   192

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

   193

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

   194

   195

		SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);

   196

		SDL_CALL SDL_WM_SetIcon(icon, NULL);

   197

		SDL_CALL SDL_FreeSurface(icon);

   198

	}

   199

   200

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

   202

	if (newscreen == NULL)

   203

		return false;

   204

   205

	_screen.width = newscreen->w;

   206

	_screen.height = newscreen->h;

   210

	_sdl_screen = newscreen;

   211

	InitPalette();

   212

   213

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

   214

	SDL_CALL SDL_WM_SetCaption(caption, caption);

   215

	SDL_CALL SDL_ShowCursor(0);

   216

   217

	GameSizeChanged();

   218

   219

	return true;

   220

}

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   222

struct VkMapping {

   223

	uint16 vk_from;

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	byte vk_count;

   225

	byte map_to;

   226

};

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   228

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

   229

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

   230

   231

static const VkMapping _vk_mapping[] = {

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	// Pageup stuff + up/down

   233

	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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   239

	AS(SDLK_HOME,   WKC_HOME),

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	AS(SDLK_END,    WKC_END),

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   242

	AS(SDLK_INSERT, WKC_INSERT),

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	AS(SDLK_DELETE, WKC_DELETE),

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   245

	// Map letters & digits

   246

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

   247

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

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   249

	AS(SDLK_ESCAPE,    WKC_ESC),

   250

	AS(SDLK_PAUSE,     WKC_PAUSE),

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	AS(SDLK_BACKSPACE, WKC_BACKSPACE),

   252

   253

	AS(SDLK_SPACE,     WKC_SPACE),

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	AS(SDLK_RETURN,    WKC_RETURN),

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	AS(SDLK_TAB,       WKC_TAB),

   256

   257

	// Function keys

   258

	AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),

   259

   260

	// Numeric part.

   261

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

   262

	AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),

   263

	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)

   269

};

   270

   271

static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)

   272

{

   273

	const VkMapping *map;

   274

	uint key = 0;

   275

   276

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

   277

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

   278

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

   279

			break;

   280

		}

   281

	}

   282

   283

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

   284

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

   285

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

   286

#elif defined(__APPLE__)

   287

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

   288

#elif defined(__MORPHOS__)

   289

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

   290

#elif defined(__BEOS__)

   291

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

   292

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

   293

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

   294

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

   295

#elif defined(__sgi__)

   296

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

   297

#else

   298

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

   299

#endif

   300

   301

	// META are the command keys on mac

   302

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

   303

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

   304

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

   305

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

   306

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

   307

#if 0

   308

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

   309

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

   310

#endif

   311

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

   312

}

   313

   314

static int PollEvent()

   315

{

   316

	SDL_Event ev;

   317

   318

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

   319

   320

	switch (ev.type) {

   321

		case SDL_MOUSEMOTION:

   322

			if (_cursor.fix_at) {

   323

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

   324

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

   325

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

   326

					_cursor.delta.x += dx;

   327

					_cursor.delta.y += dy;

   328

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

   329

				}

   330

			} else {

   331

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

   332

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

   333

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

   334

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

   335

				_cursor.dirty = true;

   336

			}

   337

			HandleMouseEvents();

   338

			break;

   339

   340

		case SDL_MOUSEBUTTONDOWN:

   341

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

   342

				ev.button.button = SDL_BUTTON_RIGHT;

   343

			}

   344

   345

			switch (ev.button.button) {

   346

				case SDL_BUTTON_LEFT:

   347

					_left_button_down = true;

   348

					break;

   349

   350

				case SDL_BUTTON_RIGHT:

   351

					_right_button_down = true;

   352

					_right_button_clicked = true;

   353

					break;

   354

   355

				case SDL_BUTTON_WHEELUP:   _cursor.wheel--; break;

   356

				case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;

   357

   358

				default: break;

   359

			}

   360

			HandleMouseEvents();

   361

			break;

   362

   363

		case SDL_MOUSEBUTTONUP:

   364

			if (_rightclick_emulate) {

   365

				_right_button_down = false;

   366

				_left_button_down = false;

   367

				_left_button_clicked = false;

   368

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

   369

				_left_button_down = false;

   370

				_left_button_clicked = false;

   371

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

   372

				_right_button_down = false;

   373

			}

   374

			HandleMouseEvents();

   375

			break;

   376

   377

		case SDL_ACTIVEEVENT:

   378

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

   379

   380

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

   381

				_cursor.in_window = true;

   382

			} else {

   383

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

   384

				_cursor.in_window = false;

   385

			}

   386

			break;

   387

   388

		case SDL_QUIT: HandleExitGameRequest(); break;

   389

   390

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

   391

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

   392

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

   393

				ToggleFullScreen(!_fullscreen);

   394

			} else {

   395

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

   396

			}

   397

			break;

   398

   399

		case SDL_VIDEORESIZE: {

   400

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

   401

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

   402

			ChangeResInGame(w, h);

   403

			break;

   404

		}

   405

	}

   406

	return -1;

   407

}

   408

   409

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

   410

{

   411

	char buf[30];

   412

   413

	const char *s = SdlOpen(SDL_INIT_VIDEO);

   414

	if (s != NULL) return s;

   415

   416

	SDL_CALL SDL_VideoDriverName(buf, 30);

   417

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

   418

   419

	GetVideoModes();

   420

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

   421

	MarkWholeScreenDirty();

   422

   423

	SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

   424

	SDL_CALL SDL_EnableUNICODE(1);

   425

	return NULL;

   426

}

   427

   428

static void SdlVideoStop()

   429

{

   430

	SdlClose(SDL_INIT_VIDEO);

   431

}

   432

   433

static void SdlVideoMainLoop()

   434

{

   435

	uint32 cur_ticks = SDL_CALL SDL_GetTicks();

   436

	uint32 next_tick = cur_ticks + 30;

   437

	uint32 pal_tick = 0;

   438

	uint32 mod;

   439

	int numkeys;

   440

	Uint8 *keys;

   441

   442

	for (;;) {

   443

		uint32 prev_cur_ticks = cur_ticks; // to check for wrapping

   444

		InteractiveRandom(); // randomness

   445

   446

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

   447

		if (_exit_game) return;

   448

   449

		mod = SDL_CALL SDL_GetModState();

   450

		keys = SDL_CALL SDL_GetKeyState(&numkeys);

   451

#if defined(_DEBUG)

   452

		if (_shift_pressed)

   453

#else

   454

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

   455

		 * to switch to another application */

   456

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

   457

#endif

   458

		{

   459

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

   460

		} else if (_fast_forward & 2) {

   461

			_fast_forward = 0;

   462

		}

   463

   464

		cur_ticks = SDL_CALL SDL_GetTicks();

   465

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

   466

			next_tick = cur_ticks + 30;

   467

   468

			_ctrl_pressed  = !!(mod & KMOD_CTRL);

   469

			_shift_pressed = !!(mod & KMOD_SHIFT);

   470

#ifdef _DEBUG

   471

			_dbg_screen_rect = !!(mod & KMOD_CAPS);

   472

#endif

   473

   474

			// determine which directional keys are down

   475

			_dirkeys =

   476

				(keys[SDLK_LEFT]  ? 1 : 0) |

   477

				(keys[SDLK_UP]    ? 2 : 0) |

   478

				(keys[SDLK_RIGHT] ? 4 : 0) |

   479

				(keys[SDLK_DOWN]  ? 8 : 0);

   480

			GameLoop();

   481

   483

			UpdateWindows();

   484

			if (++pal_tick > 4) {

   485

				CheckPaletteAnim();

   486

				pal_tick = 1;

   487

			}

   488

			DrawSurfaceToScreen();

   489

		} else {

   490

			SDL_CALL SDL_Delay(1);