tron@2186: /* $Id$ */
tron@2186: 
tron@2189: #include "../stdafx.h"
tron@2189: 
tron@2189: #ifdef WITH_SDL
tron@2189: 
tron@2189: #include "../openttd.h"
tron@2189: #include "../debug.h"
tron@2189: #include "../functions.h"
tron@2189: #include "../gfx.h"
tron@2189: #include "../macros.h"
tron@2189: #include "../sdl.h"
tron@2189: #include "../window.h"
tron@2189: #include "../network.h"
tron@2189: #include "../variables.h"
tron@2189: #include "sdl_v.h"
tron@2174: #include <SDL.h>
tron@2174: 
tron@2174: static SDL_Surface *_sdl_screen;
tron@2174: static bool _all_modes;
tron@2174: 
tron@2174: #define MAX_DIRTY_RECTS 100
tron@2174: static SDL_Rect _dirty_rects[MAX_DIRTY_RECTS];
tron@2174: static int _num_dirty_rects;
tron@2174: 
tron@2174: static void SdlVideoMakeDirty(int left, int top, int width, int height)
tron@2174: {
tron@2174: 	if (_num_dirty_rects < MAX_DIRTY_RECTS) {
tron@2174: 		_dirty_rects[_num_dirty_rects].x = left;
tron@2174: 		_dirty_rects[_num_dirty_rects].y = top;
tron@2174: 		_dirty_rects[_num_dirty_rects].w = width;
tron@2174: 		_dirty_rects[_num_dirty_rects].h = height;
tron@2174: 	}
tron@2174: 	_num_dirty_rects++;
tron@2174: }
tron@2174: 
tron@2226: static void UpdatePalette(uint start, uint count)
tron@2174: {
tron@2226: 	SDL_Color pal[256];
tron@2174: 	uint i;
tron@2174: 
tron@2226: 	for (i = 0; i != count; i++) {
tron@2226: 		pal[i].r = _cur_palette[start + i].r;
tron@2226: 		pal[i].g = _cur_palette[start + i].g;
tron@2226: 		pal[i].b = _cur_palette[start + i].b;
tron@2174: 		pal[i].unused = 0;
tron@2174: 	}
tron@2174: 
tron@2226: 	SDL_CALL SDL_SetColors(_sdl_screen, pal, start, count);
tron@2174: }
tron@2174: 
tron@2174: static void InitPalette(void)
tron@2174: {
tron@2174: 	UpdatePalette(0, 256);
tron@2174: }
tron@2174: 
tron@2174: static void CheckPaletteAnim(void)
tron@2174: {
tron@2226: 	if (_pal_last_dirty != -1) {
tron@2226: 		UpdatePalette(_pal_first_dirty, _pal_last_dirty - _pal_first_dirty + 1);
tron@2174: 		_pal_last_dirty = -1;
tron@2174: 	}
tron@2174: }
tron@2174: 
tron@2174: static void DrawSurfaceToScreen(void)
tron@2174: {
tron@2174: 	int n = _num_dirty_rects;
tron@2174: 	if (n != 0) {
tron@2174: 		_num_dirty_rects = 0;
tron@2174: 		if (n > MAX_DIRTY_RECTS)
tron@2174: 			SDL_CALL SDL_UpdateRect(_sdl_screen, 0, 0, 0, 0);
tron@2174: 		else
tron@2174: 			SDL_CALL SDL_UpdateRects(_sdl_screen, n, _dirty_rects);
tron@2174: 	}
tron@2174: }
tron@2174: 
tron@2174: static const uint16 default_resolutions[][2] = {
tron@2174: 	{ 640,  480},
tron@2174: 	{ 800,  600},
tron@2174: 	{1024,  768},
tron@2174: 	{1152,  864},
tron@2174: 	{1280,  800},
tron@2174: 	{1280,  960},
tron@2174: 	{1280, 1024},
tron@2174: 	{1400, 1050},
tron@2174: 	{1600, 1200},
tron@2174: 	{1680, 1050},
tron@2174: 	{1920, 1200}
tron@2174: };
tron@2174: 
tron@2174: static void GetVideoModes(void)
tron@2174: {
tron@2174: 	int i;
tron@2174: 	SDL_Rect **modes;
tron@2174: 
tron@2174: 	modes = SDL_CALL SDL_ListModes(NULL, SDL_SWSURFACE + (_fullscreen ? SDL_FULLSCREEN : 0));
tron@2174: 
tron@2174: 	if (modes == NULL)
tron@2174: 		error("sdl: no modes available");
tron@2174: 
tron@2174: 	_all_modes = (modes == (void*)-1);
tron@2174: 
tron@2174: 	if (_all_modes) {
tron@2174: 		// all modes available, put some default ones here
tron@2174: 		memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
tron@2174: 		_num_resolutions = lengthof(default_resolutions);
tron@2174: 	} else {
tron@2174: 		int n = 0;
tron@2174: 		for (i = 0; modes[i]; i++) {
tron@2174: 			int w = modes[i]->w;
tron@2174: 			int h = modes[i]->h;
tron@2174: 			if (IS_INT_INSIDE(w, 640, MAX_SCREEN_WIDTH + 1) &&
tron@2174: 					IS_INT_INSIDE(h, 480, MAX_SCREEN_HEIGHT + 1)) {
tron@2174: 				int j;
tron@2174: 				for (j = 0; j < n; j++) {
tron@2174: 					if (_resolutions[j][0] == w && _resolutions[j][1] == h) break;
tron@2174: 				}
tron@2174: 
tron@2174: 				if (j == n) {
tron@2174: 					_resolutions[j][0] = w;
tron@2174: 					_resolutions[j][1] = h;
tron@2174: 					if (++n == lengthof(_resolutions)) break;
tron@2174: 				}
tron@2174: 			}
tron@2174: 		}
tron@2174: 		_num_resolutions = n;
tron@2174: 		SortResolutions(_num_resolutions);
tron@2174: 	}
tron@2174: }
tron@2174: 
tron@4501: static void GetAvailableVideoMode(int *w, int *h)
tron@2174: {
tron@2174: 	int i;
tron@2174: 	int best;
tron@2174: 	uint delta;
tron@2174: 
tron@2174: 	// all modes available?
tron@4501: 	if (_all_modes) return;
tron@2174: 
tron@2174: 	// is the wanted mode among the available modes?
tron@2174: 	for (i = 0; i != _num_resolutions; i++) {
tron@4501: 		if (*w == _resolutions[i][0] && *h == _resolutions[i][1]) return;
tron@2174: 	}
tron@2174: 
tron@2174: 	// use the closest possible resolution
tron@2174: 	best = 0;
tron@2174: 	delta = abs((_resolutions[0][0] - *w) * (_resolutions[0][1] - *h));
tron@2174: 	for (i = 1; i != _num_resolutions; ++i) {
tron@2174: 		uint newdelta = abs((_resolutions[i][0] - *w) * (_resolutions[i][1] - *h));
tron@2174: 		if (newdelta < delta) {
tron@2174: 			best = i;
tron@2174: 			delta = newdelta;
tron@2174: 		}
tron@2174: 	}
tron@2174: 	*w = _resolutions[best][0];
tron@2174: 	*h = _resolutions[best][1];
tron@2174: }
tron@2174: 
tron@2174: extern const char _openttd_revision[];
tron@2174: 
Darkvater@4256: #ifndef ICON_DIR
Darkvater@4256: #define ICON_DIR "media"
Darkvater@4256: #endif
Darkvater@4256: 
Darkvater@4256: #ifdef WIN32
Darkvater@4256: /* Let's redefine the LoadBMP macro with because we are dynamically
Darkvater@4256:  * loading SDL and need to 'SDL_CALL' all functions */
Darkvater@4256: #undef SDL_LoadBMP
Darkvater@4256: #define SDL_LoadBMP(file)	SDL_LoadBMP_RW(SDL_CALL SDL_RWFromFile(file, "rb"), 1)
Darkvater@4256: #endif
Darkvater@4256: 
tron@2174: static bool CreateMainSurface(int w, int h)
tron@2174: {
Darkvater@4256: 	SDL_Surface *newscreen, *icon;
tron@2174: 	char caption[50];
tron@2174: 
tron@2174: 	GetAvailableVideoMode(&w, &h);
tron@2174: 
tron@2210: 	DEBUG(driver, 1) ("sdl: using mode %dx%d", w, h);
tron@2174: 
Darkvater@4256: 	/* Give the application an icon */
Darkvater@4256: 	icon = SDL_CALL SDL_LoadBMP(ICON_DIR PATHSEP "openttd.32.bmp");
Darkvater@4256: 	if (icon != NULL) {
Darkvater@4256: 		/* Get the colourkey, which will be magenta */
Darkvater@4256: 		uint32 rgbmap = SDL_CALL SDL_MapRGB(icon->format, 255, 0, 255);
tron@4507: 
Darkvater@4256: 		SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);
Darkvater@4256: 		SDL_CALL SDL_WM_SetIcon(icon, NULL);
Darkvater@4256: 		SDL_CALL SDL_FreeSurface(icon);
Darkvater@4256: 	}
Darkvater@4256: 
tron@2174: 	// DO NOT CHANGE TO HWSURFACE, IT DOES NOT WORK
tron@2174: 	newscreen = SDL_CALL SDL_SetVideoMode(w, h, 8, SDL_SWSURFACE | SDL_HWPALETTE | (_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE));
tron@2174: 	if (newscreen == NULL)
tron@2174: 		return false;
tron@2174: 
tron@2174: 	_screen.width = newscreen->w;
tron@2174: 	_screen.height = newscreen->h;
tron@2174: 	_screen.pitch = newscreen->pitch;
tron@2174: 
tron@2174: 	_sdl_screen = newscreen;
tron@2174: 	InitPalette();
tron@2174: 
tron@2174: 	snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
tron@2174: 	SDL_CALL SDL_WM_SetCaption(caption, caption);
tron@2174: 	SDL_CALL SDL_ShowCursor(0);
tron@2174: 
tron@2174: 	GameSizeChanged();
tron@2174: 
tron@2174: 	return true;
tron@2174: }
tron@2174: 
tron@2174: typedef struct VkMapping {
tron@2174: 	uint16 vk_from;
tron@2174: 	byte vk_count;
tron@2174: 	byte map_to;
tron@2174: } VkMapping;
tron@2174: 
tron@2174: #define AS(x, z) {x, 0, z}
tron@2174: #define AM(x, y, z, w) {x, y - x, z}
tron@2174: 
tron@2174: static const VkMapping _vk_mapping[] = {
tron@2174: 	// Pageup stuff + up/down
tron@2174: 	AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),
rubidium@4434: 	AS(SDLK_UP,     WKC_UP),
rubidium@4434: 	AS(SDLK_DOWN,   WKC_DOWN),
rubidium@4434: 	AS(SDLK_LEFT,   WKC_LEFT),
rubidium@4434: 	AS(SDLK_RIGHT,  WKC_RIGHT),
tron@2174: 
rubidium@4434: 	AS(SDLK_HOME,   WKC_HOME),
rubidium@4434: 	AS(SDLK_END,    WKC_END),
tron@2174: 
rubidium@4434: 	AS(SDLK_INSERT, WKC_INSERT),
rubidium@4434: 	AS(SDLK_DELETE, WKC_DELETE),
tron@2174: 
tron@2174: 	// Map letters & digits
tron@2174: 	AM(SDLK_a, SDLK_z, 'A', 'Z'),
tron@2174: 	AM(SDLK_0, SDLK_9, '0', '9'),
tron@2174: 
rubidium@4434: 	AS(SDLK_ESCAPE,    WKC_ESC),
rubidium@4434: 	AS(SDLK_PAUSE,     WKC_PAUSE),
rubidium@4434: 	AS(SDLK_BACKSPACE, WKC_BACKSPACE),
tron@2174: 
rubidium@4434: 	AS(SDLK_SPACE,     WKC_SPACE),
rubidium@4434: 	AS(SDLK_RETURN,    WKC_RETURN),
rubidium@4434: 	AS(SDLK_TAB,       WKC_TAB),
tron@2174: 
tron@2174: 	// Function keys
tron@2174: 	AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),
tron@2174: 
tron@2174: 	// Numeric part.
tron@2174: 	// What is the virtual keycode for numeric enter??
tron@2174: 	AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),
rubidium@4434: 	AS(SDLK_KP_DIVIDE,   WKC_NUM_DIV),
rubidium@4434: 	AS(SDLK_KP_MULTIPLY, WKC_NUM_MUL),
rubidium@4434: 	AS(SDLK_KP_MINUS,    WKC_NUM_MINUS),
rubidium@4434: 	AS(SDLK_KP_PLUS,     WKC_NUM_PLUS),
rubidium@4434: 	AS(SDLK_KP_ENTER,    WKC_NUM_ENTER),
rubidium@4434: 	AS(SDLK_KP_PERIOD,   WKC_NUM_DECIMAL)
tron@2174: };
tron@2174: 
tron@2174: static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)
tron@2174: {
tron@2174: 	const VkMapping *map;
tron@2174: 	uint key = 0;
tron@4507: 
tron@2174: 	for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
tron@2174: 		if ((uint)(sym->sym - map->vk_from) <= map->vk_count) {
tron@2174: 			key = sym->sym - map->vk_from + map->map_to;
tron@2174: 			break;
tron@2174: 		}
tron@2174: 	}
tron@2174: 
tron@2174: 	// check scancode for BACKQUOTE key, because we want the key left of "1", not anything else (on non-US keyboards)
tron@2174: #if defined(WIN32) || defined(__OS2__)
tron@2174: 	if (sym->scancode == 41) key |= WKC_BACKQUOTE;
tron@2174: #elif defined(__APPLE__)
tron@2174: 	if (sym->scancode == 10) key |= WKC_BACKQUOTE;
tron@2174: #elif defined(__MORPHOS__)
tron@2174: 	if (sym->scancode == 0)  key |= WKC_BACKQUOTE;  // yes, that key is code '0' under MorphOS :)
tron@2174: #elif defined(__BEOS__)
tron@2174: 	if (sym->scancode == 17)  key |= WKC_BACKQUOTE;
tron@2174: #elif defined(__SVR4) && defined(__sun)
tron@2174: 	if (sym->scancode == 60) key |= WKC_BACKQUOTE;
tron@2174: 	if (sym->scancode == 49) key |= WKC_BACKSPACE;
tron@2174: #elif defined(__sgi__)
tron@2174: 	if (sym->scancode == 22) key |= WKC_BACKQUOTE;
tron@2174: #else
tron@2174: 	if (sym->scancode == 41) key |= WKC_BACKQUOTE; // Linux console
tron@2174: 	if (sym->scancode == 49) key |= WKC_BACKQUOTE;
tron@2174: #endif
tron@2174: 
tron@2174: 	// META are the command keys on mac
tron@4507: 	if (sym->mod & KMOD_META)  key |= WKC_META;
tron@2174: 	if (sym->mod & KMOD_SHIFT) key |= WKC_SHIFT;
tron@4507: 	if (sym->mod & KMOD_CTRL)  key |= WKC_CTRL;
tron@4507: 	if (sym->mod & KMOD_ALT)   key |= WKC_ALT;
tron@2174: 	// these two lines really help porting hotkey combos. Uncomment to use -- Bjarni
tron@4507: #if 0
tron@4507: 	printf("scancode character pressed %d\n", sym->scancode);
tron@4507: 	printf("unicode character pressed %d\n", sym->unicode);
tron@4507: #endif
tron@2174: 	return (key << 16) + sym->unicode;
tron@2174: }
tron@2174: 
tron@2174: static int PollEvent(void)
tron@2174: {
tron@2174: 	SDL_Event ev;
tron@2174: 
tron@4507: 	if (!SDL_CALL SDL_PollEvent(&ev)) return -2;
tron@2174: 
tron@2174: 	switch (ev.type) {
tron@4507: 		case SDL_MOUSEMOTION:
tron@4507: 			if (_cursor.fix_at) {
tron@4507: 				int dx = ev.motion.x - _cursor.pos.x;
tron@4507: 				int dy = ev.motion.y - _cursor.pos.y;
tron@4507: 				if (dx != 0 || dy != 0) {
tron@4507: 					_cursor.delta.x += dx;
tron@4507: 					_cursor.delta.y += dy;
tron@4507: 					SDL_CALL SDL_WarpMouse(_cursor.pos.x, _cursor.pos.y);
tron@4507: 				}
tron@4507: 			} else {
tron@4507: 				_cursor.delta.x = ev.motion.x - _cursor.pos.x;
tron@4507: 				_cursor.delta.y = ev.motion.y - _cursor.pos.y;
tron@4507: 				_cursor.pos.x = ev.motion.x;
tron@4507: 				_cursor.pos.y = ev.motion.y;
tron@4507: 				_cursor.dirty = true;
tron@2174: 			}
tron@4507: 			break;
tron@2174: 
tron@4507: 		case SDL_MOUSEBUTTONDOWN:
tron@4508: 			if (_rightclick_emulate && SDL_CALL SDL_GetModState() & KMOD_CTRL) {
tron@4507: 				ev.button.button = SDL_BUTTON_RIGHT;
tron@4507: 			}
Darkvater@3312: 
tron@4507: 			switch (ev.button.button) {
tron@4507: 				case SDL_BUTTON_LEFT:
tron@4507: 					_left_button_down = true;
tron@4507: 					break;
tron@2174: 
tron@4507: 				case SDL_BUTTON_RIGHT:
tron@4507: 					_right_button_down = true;
tron@4507: 					_right_button_clicked = true;
tron@4507: 					break;
tron@2174: 
tron@4507: 				case SDL_BUTTON_WHEELUP:   _cursor.wheel--; break;
tron@4507: 				case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;
tron@2174: 
tron@4507: 				default: break;
tron@4507: 			}
tron@4507: 			break;
tron@4507: 
tron@4507: 		case SDL_MOUSEBUTTONUP:
tron@4507: 			if (_rightclick_emulate) {
tron@4507: 				_right_button_down = false;
tron@4507: 				_left_button_down = false;
tron@4507: 				_left_button_clicked = false;
tron@4507: 			} else if (ev.button.button == SDL_BUTTON_LEFT) {
tron@4507: 				_left_button_down = false;
tron@4507: 				_left_button_clicked = false;
tron@4507: 			} else if (ev.button.button == SDL_BUTTON_RIGHT) {
tron@4507: 				_right_button_down = false;
tron@4507: 			}
tron@4507: 			break;
tron@4507: 
tron@4507: 		case SDL_ACTIVEEVENT:
tron@4507: 			if (!(ev.active.state & SDL_APPMOUSEFOCUS)) break;
tron@4507: 
tron@4507: 			if (ev.active.gain) { // mouse entered the window, enable cursor
tron@4507: 				_cursor.in_window = true;
tron@4507: 			} else {
tron@4507: 				UndrawMouseCursor(); // mouse left the window, undraw cursor
tron@4507: 				_cursor.in_window = false;
tron@4507: 			}
tron@4507: 			break;
tron@4507: 
rubidium@4548: 		case SDL_QUIT: HandleExitGameRequest(); break;
tron@4507: 
rubidium@4548: 		case SDL_KEYDOWN: /* Toggle full-screen on ALT + ENTER/F */
tron@4507: 			if ((ev.key.keysym.mod & (KMOD_ALT | KMOD_META)) &&
tron@4507: 					(ev.key.keysym.sym == SDLK_RETURN || ev.key.keysym.sym == SDLK_f)) {
tron@4507: 				ToggleFullScreen(!_fullscreen);
tron@4507: 			} else {
tron@4507: 				_pressed_key = ConvertSdlKeyIntoMy(&ev.key.keysym);
tron@4507: 			}
tron@4507: 
tron@4507: 			break;
tron@4507: 
tron@4507: 		case SDL_VIDEORESIZE: {
tron@4507: 			int w = clamp(ev.resize.w, 64, MAX_SCREEN_WIDTH);
tron@4507: 			int h = clamp(ev.resize.h, 64, MAX_SCREEN_HEIGHT);
tron@4507: 			ChangeResInGame(w, h);
tron@4507: 			break;
tron@4507: 		}
tron@2174: 	}
tron@2174: 	return -1;
tron@2174: }
tron@2174: 
tron@2174: static const char *SdlVideoStart(const char * const *parm)
tron@2174: {
tron@2174: 	char buf[30];
tron@2174: 
tron@2174: 	const char *s = SdlOpen(SDL_INIT_VIDEO);
tron@2174: 	if (s != NULL) return s;
tron@2174: 
tron@2174: 	SDL_CALL SDL_VideoDriverName(buf, 30);
tron@2210: 	DEBUG(driver, 1) ("sdl: using driver '%s'", buf);
tron@2174: 
tron@2174: 	GetVideoModes();
tron@2174: 	CreateMainSurface(_cur_resolution[0], _cur_resolution[1]);
tron@2174: 	MarkWholeScreenDirty();
tron@2174: 
tron@2174: 	SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
tron@2174: 	SDL_CALL SDL_EnableUNICODE(1);
tron@2174: 	return NULL;
tron@2174: }
tron@2174: 
tron@2174: static void SdlVideoStop(void)
tron@2174: {
tron@2174: 	SdlClose(SDL_INIT_VIDEO);
tron@2174: }
tron@2174: 
tron@2228: static void SdlVideoMainLoop(void)
tron@2174: {
tron@2174: 	uint32 next_tick = SDL_CALL SDL_GetTicks() + 30;
tron@2174: 	uint32 cur_ticks;
tron@2174: 	uint32 pal_tick = 0;
tron@2174: 	int i;
tron@2174: 	uint32 mod;
tron@2174: 	int numkeys;
tron@2174: 	Uint8 *keys;
tron@2174: 
tron@2174: 	for (;;) {
tron@2174: 		InteractiveRandom(); // randomness
tron@2174: 
tron@2174: 		while ((i = PollEvent()) == -1) {}
tron@2228: 		if (_exit_game) return;
tron@2174: 
tron@2174: 		mod = SDL_CALL SDL_GetModState();
tron@2174: 		keys = SDL_CALL SDL_GetKeyState(&numkeys);
tron@2174: #if defined(_DEBUG)
tron@2174: 		if (_shift_pressed)
tron@2174: #else
tron@2174: 		if (keys[SDLK_TAB])
tron@2174: #endif
tron@2174: 		{
rubidium@4536: 			if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
tron@2174: 		} else if (_fast_forward & 2) {
tron@2174: 			_fast_forward = 0;
tron@2174: 		}
tron@2174: 
tron@2174: 		cur_ticks = SDL_CALL SDL_GetTicks();
tron@2174: 		if ((_fast_forward && !_pause) || cur_ticks > next_tick)
tron@2174: 			next_tick = cur_ticks;
tron@2174: 
tron@2174: 		if (cur_ticks == next_tick) {
tron@2174: 			next_tick += 30;
tron@2174: 
tron@4508: 			_ctrl_pressed  = !!(mod & KMOD_CTRL);
tron@4508: 			_shift_pressed = !!(mod & KMOD_SHIFT);
tron@2664: #ifdef _DEBUG
tron@2174: 			_dbg_screen_rect = !!(mod & KMOD_CAPS);
tron@2664: #endif
tron@2174: 
tron@2174: 			// determine which directional keys are down
tron@2174: 			_dirkeys =
tron@2174: 				(keys[SDLK_LEFT]  ? 1 : 0) |
tron@2174: 				(keys[SDLK_UP]    ? 2 : 0) |
tron@2174: 				(keys[SDLK_RIGHT] ? 4 : 0) |
tron@2174: 				(keys[SDLK_DOWN]  ? 8 : 0);
tron@2174: 			GameLoop();
tron@2174: 
tron@2174: 			_screen.dst_ptr = _sdl_screen->pixels;
tron@2174: 			UpdateWindows();
tron@2174: 			if (++pal_tick > 4) {
tron@2174: 				CheckPaletteAnim();
tron@2174: 				pal_tick = 1;
tron@2174: 			}
tron@2174: 			DrawSurfaceToScreen();
tron@2174: 		} else {
tron@2174: 			SDL_CALL SDL_Delay(1);
tron@2174: 			_screen.dst_ptr = _sdl_screen->pixels;
tron@2174: 			DrawTextMessage();
tron@2174: 			DrawMouseCursor();
tron@2174: 			DrawSurfaceToScreen();
tron@2174: 		}
tron@2174: 	}
tron@2174: }
tron@2174: 
tron@2174: static bool SdlVideoChangeRes(int w, int h)
tron@2174: {
tron@2174: 	return CreateMainSurface(w, h);
tron@2174: }
tron@2174: 
tron@2174: static void SdlVideoFullScreen(bool full_screen)
tron@2174: {
tron@2174: 	_fullscreen = full_screen;
tron@2174: 	GetVideoModes(); // get the list of available video modes
tron@4507: 	if (!_video_driver->change_resolution(_cur_resolution[0], _cur_resolution[1])) {
tron@4507: 		// switching resolution failed, put back full_screen to original status
tron@4507: 		_fullscreen ^= true;
tron@4507: 	}
tron@2174: }
tron@2174: 
tron@2174: const HalVideoDriver _sdl_video_driver = {
tron@2174: 	SdlVideoStart,
tron@2174: 	SdlVideoStop,
tron@2174: 	SdlVideoMakeDirty,
tron@2174: 	SdlVideoMainLoop,
tron@2174: 	SdlVideoChangeRes,
tron@2174: 	SdlVideoFullScreen,
tron@2174: };
tron@2189: 
tron@2189: #endif