rubidium@10379: /* $Id$ */
rubidium@10379: 
rubidium@10379: /** @file allegro_v.cpp Implementation of the Allegro video driver. */
rubidium@10379: 
rubidium@10379: #ifdef WITH_ALLEGRO
rubidium@10379: 
rubidium@10379: #include "../stdafx.h"
rubidium@10379: #include "../openttd.h"
rubidium@10379: #include "../debug.h"
rubidium@10379: #include "../gfx_func.h"
rubidium@10379: #include "../sdl.h"
rubidium@10379: #include "../variables.h"
rubidium@10379: #include "../rev.h"
rubidium@10379: #include "../blitter/factory.hpp"
rubidium@10379: #include "../network/network.h"
rubidium@10379: #include "../core/math_func.hpp"
rubidium@10379: #include "../core/random_func.hpp"
rubidium@10379: #include "../functions.h"
rubidium@10379: #include "../texteff.hpp"
rubidium@10379: #include "allegro_v.h"
rubidium@10379: #include <allegro.h>
rubidium@10379: 
rubidium@10379: static FVideoDriver_Allegro iFVideoDriver_Allegro;
rubidium@10379: 
rubidium@10379: static BITMAP *_allegro_screen;
rubidium@10379: 
rubidium@10379: #define MAX_DIRTY_RECTS 100
rubidium@10379: static PointDimension _dirty_rects[MAX_DIRTY_RECTS];
rubidium@10379: static int _num_dirty_rects;
rubidium@10379: 
rubidium@10379: void VideoDriver_Allegro::MakeDirty(int left, int top, int width, int height)
rubidium@10379: {
rubidium@10379: 	if (_num_dirty_rects < MAX_DIRTY_RECTS) {
rubidium@10379: 		_dirty_rects[_num_dirty_rects].x = left;
rubidium@10379: 		_dirty_rects[_num_dirty_rects].y = top;
rubidium@10379: 		_dirty_rects[_num_dirty_rects].width = width;
rubidium@10379: 		_dirty_rects[_num_dirty_rects].height = height;
rubidium@10379: 	}
rubidium@10379: 	_num_dirty_rects++;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static void DrawSurfaceToScreen()
rubidium@10379: {
rubidium@10379: 	int n = _num_dirty_rects;
rubidium@10379: 	if (n == 0) return;
rubidium@10379: 
rubidium@10379: 	_num_dirty_rects = 0;
rubidium@10379: 	if (n > MAX_DIRTY_RECTS) {
rubidium@10379: 		blit(_allegro_screen, screen, 0, 0, 0, 0, _allegro_screen->w, _allegro_screen->h);
rubidium@10379: 		return;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	for (int i = 0; i < n; i++) {
rubidium@10379: 		blit(_allegro_screen, screen, _dirty_rects[i].x, _dirty_rects[i].y, _dirty_rects[i].x, _dirty_rects[i].y, _dirty_rects[i].width, _dirty_rects[i].height);
rubidium@10379: 	}
rubidium@10379: }
rubidium@10379: 
rubidium@10379: 
rubidium@10379: static void UpdatePalette(uint start, uint count)
rubidium@10379: {
rubidium@10379: 	static PALETTE pal;
rubidium@10379: 
rubidium@10379: 	uint end = start + count;
rubidium@10379: 	for (uint i = start; i != end; i++) {
rubidium@10379: 		pal[i].r = _cur_palette[i].r / 4;
rubidium@10379: 		pal[i].g = _cur_palette[i].g / 4;
rubidium@10379: 		pal[i].b = _cur_palette[i].b / 4;
rubidium@10379: 		pal[i].filler = 0;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	set_palette_range(pal, start, end - 1, 1);
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static void InitPalette()
rubidium@10379: {
rubidium@10379: 	UpdatePalette(0, 256);
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static void CheckPaletteAnim()
rubidium@10379: {
rubidium@10379: 	if (_pal_count_dirty != 0) {
rubidium@10379: 		Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
rubidium@10379: 
rubidium@10379: 		switch (blitter->UsePaletteAnimation()) {
rubidium@10379: 			case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
rubidium@10379: 				UpdatePalette(_pal_first_dirty, _pal_count_dirty);
rubidium@10379: 				break;
rubidium@10379: 
rubidium@10379: 			case Blitter::PALETTE_ANIMATION_BLITTER:
rubidium@10379: 				blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
rubidium@10379: 				break;
rubidium@10379: 
rubidium@10379: 			case Blitter::PALETTE_ANIMATION_NONE:
rubidium@10379: 				break;
rubidium@10379: 
rubidium@10379: 			default:
rubidium@10379: 				NOT_REACHED();
rubidium@10379: 		}
rubidium@10379: 		_pal_count_dirty = 0;
rubidium@10379: 	}
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static const Dimension default_resolutions[] = {
rubidium@10379: 	{ 640,  480},
rubidium@10379: 	{ 800,  600},
rubidium@10379: 	{1024,  768},
rubidium@10379: 	{1152,  864},
rubidium@10379: 	{1280,  800},
rubidium@10379: 	{1280,  960},
rubidium@10379: 	{1280, 1024},
rubidium@10379: 	{1400, 1050},
rubidium@10379: 	{1600, 1200},
rubidium@10379: 	{1680, 1050},
rubidium@10379: 	{1920, 1200}
rubidium@10379: };
rubidium@10379: 
rubidium@10379: static void GetVideoModes()
rubidium@10379: {
rubidium@10379: 	/* Need to set a gfx_mode as there is NO other way to autodetect for
rubidium@10379: 	 * cards ourselves... and we need a card to get the modes. */
rubidium@10379: 	set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
rubidium@10379: 
rubidium@10379: 	GFX_MODE_LIST *mode_list = get_gfx_mode_list(gfx_driver->id);
rubidium@10379: 	if (mode_list == NULL) {
rubidium@10379: 		memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
rubidium@10379: 		_num_resolutions = lengthof(default_resolutions);
rubidium@10379: 		return;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	GFX_MODE *modes = mode_list->mode;
rubidium@10379: 
rubidium@10379: 	int n = 0;
rubidium@10379: 	for (int i = 0; modes[i].bpp != 0; i++) {
rubidium@10379: 		int w = modes[i].width;
rubidium@10379: 		int h = modes[i].height;
rubidium@10379: 		if (w >= 640 && h >= 480) {
rubidium@10379: 			int j;
rubidium@10379: 			for (j = 0; j < n; j++) {
rubidium@10379: 				if (_resolutions[j].width == w && _resolutions[j].height == h) break;
rubidium@10379: 			}
rubidium@10379: 
rubidium@10379: 			if (j == n) {
rubidium@10379: 				_resolutions[j].width  = w;
rubidium@10379: 				_resolutions[j].height = h;
rubidium@10379: 				if (++n == lengthof(_resolutions)) break;
rubidium@10379: 			}
rubidium@10379: 		}
rubidium@10379: 	}
rubidium@10379: 	_num_resolutions = n;
rubidium@10379: 	SortResolutions(_num_resolutions);
rubidium@10379: 
rubidium@10379: 	destroy_gfx_mode_list(mode_list);
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static void GetAvailableVideoMode(int *w, int *h)
rubidium@10379: {
rubidium@10379: 	/* is the wanted mode among the available modes? */
rubidium@10379: 	for (int i = 0; i != _num_resolutions; i++) {
rubidium@10379: 		if (*w == _resolutions[i].width && *h == _resolutions[i].height) return;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	/* use the closest possible resolution */
rubidium@10379: 	int best = 0;
rubidium@10379: 	uint delta = abs((_resolutions[0].width - *w) * (_resolutions[0].height - *h));
rubidium@10379: 	for (int i = 1; i != _num_resolutions; ++i) {
rubidium@10379: 		uint newdelta = abs((_resolutions[i].width - *w) * (_resolutions[i].height - *h));
rubidium@10379: 		if (newdelta < delta) {
rubidium@10379: 			best = i;
rubidium@10379: 			delta = newdelta;
rubidium@10379: 		}
rubidium@10379: 	}
rubidium@10379: 	*w = _resolutions[best].width;
rubidium@10379: 	*h = _resolutions[best].height;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: static bool CreateMainSurface(int w, int h)
rubidium@10379: {
rubidium@10379: 	int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
rubidium@10379: 	if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
rubidium@10379: 	set_color_depth(bpp);
rubidium@10379: 
rubidium@10379: 	GetVideoModes();
rubidium@10379: 	GetAvailableVideoMode(&w, &h);
rubidium@10379: 	if (set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, w, h, 0, 0) != 0) return false;
rubidium@10379: 
rubidium@10379: 	_allegro_screen = create_bitmap(screen->w, screen->h);
rubidium@10379: 	_screen.width = screen->w;
rubidium@10379: 	_screen.height = screen->h;
rubidium@10379: 	_screen.pitch = ((byte*)screen->line[1] - (byte*)screen->line[0]) / (bitmap_color_depth(screen) / 8);
rubidium@10379: 
rubidium@10379: 	poll_mouse();
rubidium@10379: 	_cursor.pos.x = mouse_x;
rubidium@10379: 	_cursor.pos.y = mouse_y;
rubidium@10379: 
rubidium@10379: 	InitPalette();
rubidium@10379: 
rubidium@10379: 	char caption[32];
rubidium@10379: 	snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
rubidium@10379: 	set_window_title(caption);
rubidium@10379: 
rubidium@10379: 	GameSizeChanged();
rubidium@10379: 
rubidium@10379: 	return true;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: struct VkMapping {
rubidium@10379: 	uint16 vk_from;
rubidium@10379: 	byte vk_count;
rubidium@10379: 	byte map_to;
rubidium@10379: };
rubidium@10379: 
rubidium@10379: #define AS(x, z) {x, 0, z}
rubidium@10379: #define AM(x, y, z, w) {x, y - x, z}
rubidium@10379: 
rubidium@10379: static const VkMapping _vk_mapping[] = {
rubidium@10379: 	/* Pageup stuff + up/down */
rubidium@10379: 	AM(KEY_PGUP, KEY_PGDN, WKC_PAGEUP, WKC_PAGEDOWN),
rubidium@10379: 	AS(KEY_UP,     WKC_UP),
rubidium@10379: 	AS(KEY_DOWN,   WKC_DOWN),
rubidium@10379: 	AS(KEY_LEFT,   WKC_LEFT),
rubidium@10379: 	AS(KEY_RIGHT,  WKC_RIGHT),
rubidium@10379: 
rubidium@10379: 	AS(KEY_HOME,   WKC_HOME),
rubidium@10379: 	AS(KEY_END,    WKC_END),
rubidium@10379: 
rubidium@10379: 	AS(KEY_INSERT, WKC_INSERT),
rubidium@10379: 	AS(KEY_DEL,    WKC_DELETE),
rubidium@10379: 
rubidium@10379: 	/* Map letters & digits */
rubidium@10379: 	AM(KEY_A, KEY_Z, 'A', 'Z'),
rubidium@10379: 	AM(KEY_0, KEY_9, '0', '9'),
rubidium@10379: 
rubidium@10379: 	AS(KEY_ESC,       WKC_ESC),
rubidium@10379: 	AS(KEY_PAUSE,     WKC_PAUSE),
rubidium@10379: 	AS(KEY_BACKSPACE, WKC_BACKSPACE),
rubidium@10379: 
rubidium@10379: 	AS(KEY_SPACE,     WKC_SPACE),
rubidium@10379: 	AS(KEY_ENTER,     WKC_RETURN),
rubidium@10379: 	AS(KEY_TAB,       WKC_TAB),
rubidium@10379: 
rubidium@10379: 	/* Function keys */
rubidium@10379: 	AM(KEY_F1, KEY_F12, WKC_F1, WKC_F12),
rubidium@10379: 
rubidium@10379: 	/* Numeric part. */
rubidium@10379: 	AM(KEY_0_PAD, KEY_9_PAD, '0', '9'),
rubidium@10379: 	AS(KEY_SLASH_PAD,   WKC_NUM_DIV),
rubidium@10379: 	AS(KEY_ASTERISK,    WKC_NUM_MUL),
rubidium@10379: 	AS(KEY_MINUS_PAD,   WKC_NUM_MINUS),
rubidium@10379: 	AS(KEY_PLUS_PAD,    WKC_NUM_PLUS),
rubidium@10379: 	AS(KEY_ENTER_PAD,   WKC_NUM_ENTER),
rubidium@10379: 	AS(KEY_DEL_PAD,     WKC_DELETE),
rubidium@10379: 
rubidium@10379: 	/* Other non-letter keys */
rubidium@10379: 	AS(KEY_SLASH,        WKC_SLASH),
rubidium@10379: 	AS(KEY_SEMICOLON,    WKC_SEMICOLON),
rubidium@10379: 	AS(KEY_EQUALS,       WKC_EQUALS),
rubidium@10379: 	AS(KEY_OPENBRACE,    WKC_L_BRACKET),
rubidium@10379: 	AS(KEY_BACKSLASH,    WKC_BACKSLASH),
rubidium@10379: 	AS(KEY_CLOSEBRACE,   WKC_R_BRACKET),
rubidium@10379: 
rubidium@10379: 	AS(KEY_QUOTE,   WKC_SINGLEQUOTE),
rubidium@10379: 	AS(KEY_COMMA,   WKC_COMMA),
rubidium@10379: 	AS(KEY_MINUS,   WKC_MINUS),
rubidium@10379: 	AS(KEY_STOP,    WKC_PERIOD),
rubidium@10379: 	AS(KEY_TILDE,   WKC_BACKQUOTE),
rubidium@10379: };
rubidium@10379: 
rubidium@10379: static uint32 ConvertAllegroKeyIntoMy()
rubidium@10379: {
rubidium@10379: 	int scancode;
rubidium@10379: 	int unicode = ureadkey(&scancode);
rubidium@10379: 
rubidium@10379: 	const VkMapping *map;
rubidium@10379: 	uint key = 0;
rubidium@10379: 
rubidium@10379: 	for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
rubidium@10379: 		if ((uint)(scancode - map->vk_from) <= map->vk_count) {
rubidium@10379: 			key = scancode - map->vk_from + map->map_to;
rubidium@10379: 			break;
rubidium@10379: 		}
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	if (key_shifts & KB_SHIFT_FLAG) key |= WKC_SHIFT;
rubidium@10379: 	if (key_shifts & KB_CTRL_FLAG)  key |= WKC_CTRL;
rubidium@10379: 	if (key_shifts & KB_ALT_FLAG)   key |= WKC_ALT;
rubidium@10379: #if 0
rubidium@10379: 	DEBUG(driver, 0, "Scancode character pressed %u", scancode);
rubidium@10379: 	DEBUG(driver, 0, "Unicode character pressed %u", unicode);
rubidium@10379: #endif
rubidium@10379: 	return (key << 16) + unicode;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: enum {
rubidium@10379: 	LEFT_BUTTON,
rubidium@10379: 	RIGHT_BUTTON,
rubidium@10379: };
rubidium@10379: 
rubidium@10379: static void PollEvent()
rubidium@10379: {
rubidium@10379: 	poll_mouse();
rubidium@10379: 
rubidium@10379: 	bool mouse_action = false;
rubidium@10379: 
rubidium@10379: 	/* Mouse buttons */
rubidium@10379: 	static int prev_button_state;
rubidium@10379: 	if (prev_button_state != mouse_b) {
rubidium@10379: 		uint diff = prev_button_state ^ mouse_b;
rubidium@10379: 		while (diff != 0) {
rubidium@10379: 			int button = FindFirstBit(diff);
rubidium@10379: 			ClrBit(diff, button);
rubidium@10379: 			if (HasBit(mouse_b, button)) {
rubidium@10379: 				/* Pressed mouse button */
rubidium@10379: 				if (_rightclick_emulate && key_shifts & KB_CTRL_FLAG) {
rubidium@10379: 					button = RIGHT_BUTTON;
rubidium@10379: 					ClrBit(diff, RIGHT_BUTTON);
rubidium@10379: 				}
rubidium@10379: 				switch (button) {
rubidium@10379: 					case LEFT_BUTTON:
rubidium@10379: 						_left_button_down = true;
rubidium@10379: 						break;
rubidium@10379: 
rubidium@10379: 					case RIGHT_BUTTON:
rubidium@10379: 						_right_button_down = true;
rubidium@10379: 						_right_button_clicked = true;
rubidium@10379: 						break;
rubidium@10379: 
rubidium@10379: 					default:
rubidium@10379: 						/* ignore rest */
rubidium@10379: 						break;
rubidium@10379: 				}
rubidium@10379: 			} else {
rubidium@10379: 				/* Released mouse button */
rubidium@10379: 				if (_rightclick_emulate) {
rubidium@10379: 					_right_button_down = false;
rubidium@10379: 					_left_button_down = false;
rubidium@10379: 					_left_button_clicked = false;
rubidium@10379: 				} else if (button == LEFT_BUTTON) {
rubidium@10379: 					_left_button_down = false;
rubidium@10379: 					_left_button_clicked = false;
rubidium@10379: 				} else if (button == RIGHT_BUTTON) {
rubidium@10379: 					_right_button_down = false;
rubidium@10379: 				}
rubidium@10379: 			}
rubidium@10379: 		}
rubidium@10379: 		prev_button_state = mouse_b;
rubidium@10379: 		mouse_action = true;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	/* Mouse movement */
rubidium@10379: 	int dx = mouse_x - _cursor.pos.x;
rubidium@10379: 	int dy = mouse_y - _cursor.pos.y;
rubidium@10379: 	if (dx != 0 || dy != 0) {
rubidium@10379: 		if (_cursor.fix_at) {
rubidium@10379: 			_cursor.delta.x += dx;
rubidium@10379: 			_cursor.delta.y += dy;
rubidium@10379: 			position_mouse(_cursor.pos.x, _cursor.pos.y);
rubidium@10379: 		} else {
rubidium@10379: 			_cursor.delta.x = dx;
rubidium@10379: 			_cursor.delta.y = dy;
rubidium@10379: 			_cursor.pos.x = mouse_x;
rubidium@10379: 			_cursor.pos.y = mouse_y;
rubidium@10379: 			_cursor.dirty = true;
rubidium@10379: 		}
rubidium@10379: 		mouse_action = true;
rubidium@10379: 	}
rubidium@10379: 
rubidium@10379: 	if (mouse_action) HandleMouseEvents();
rubidium@10379: 
rubidium@10379: 	poll_keyboard();
rubidium@10379: 	if (key_shifts & KB_ALT_FLAG && (key[KEY_ENTER] || key[KEY_F])) {
rubidium@10379: 		ToggleFullScreen(!_fullscreen);
rubidium@10379: 	} else if (keypressed()) {
rubidium@10379: 		HandleKeypress(ConvertAllegroKeyIntoMy());
rubidium@10379: 	}
rubidium@10379: }
rubidium@10379: 
rubidium@10380: /** There are multiple modules that might be using Allegro and
rubidium@10380:  * Allegro can only be initiated once. */
rubidium@10381: int _allegro_instance_count = 0;
rubidium@10380: 
rubidium@10379: const char *VideoDriver_Allegro::Start(const char * const *parm)
rubidium@10379: {
rubidium@10381: 	if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
rubidium@10381: 	_allegro_instance_count++;
rubidium@10379: 
rubidium@10379: 	install_timer();
rubidium@10379: 	install_mouse();
rubidium@10379: 	install_keyboard();
rubidium@10379: 
rubidium@10379: 	CreateMainSurface(_cur_resolution.width, _cur_resolution.height);
rubidium@10379: 	MarkWholeScreenDirty();
rubidium@10379: 	set_close_button_callback(HandleExitGameRequest);
rubidium@10379: 
rubidium@10379: 	return NULL;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: void VideoDriver_Allegro::Stop()
rubidium@10379: {
rubidium@10381: 	if (--_allegro_instance_count == 0) allegro_exit();
rubidium@10379: }
rubidium@10379: 
rubidium@10379: #if defined(UNIX) || defined(__OS2__) || defined(PSP)
rubidium@10379: # include <sys/time.h> /* gettimeofday */
rubidium@10379: 
rubidium@10379: static uint32 GetTime()
rubidium@10379: {
rubidium@10379: 	struct timeval tim;
rubidium@10379: 
rubidium@10379: 	gettimeofday(&tim, NULL);
rubidium@10379: 	return tim.tv_usec / 1000 + tim.tv_sec * 1000;
rubidium@10379: }
rubidium@10379: #else
rubidium@10379: static uint32 GetTime()
rubidium@10379: {
rubidium@10379: 	return GetTickCount();
rubidium@10379: }
rubidium@10379: #endif
rubidium@10379: 
rubidium@10379: 
rubidium@10379: void VideoDriver_Allegro::MainLoop()
rubidium@10379: {
rubidium@10379: 	uint32 cur_ticks = GetTime();
rubidium@10379: 	uint32 last_cur_ticks = cur_ticks;
rubidium@10379: 	uint32 next_tick = cur_ticks + 30;
rubidium@10379: 	uint32 pal_tick = 0;
rubidium@10379: 
rubidium@10379: 	for (;;) {
rubidium@10379: 		uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
rubidium@10379: 		InteractiveRandom(); // randomness
rubidium@10379: 
rubidium@10379: 		PollEvent();
rubidium@10379: 		if (_exit_game) return;
rubidium@10379: 
rubidium@10379: #if defined(_DEBUG)
rubidium@10379: 		if (_shift_pressed)
rubidium@10379: #else
rubidium@10379: 		/* Speedup when pressing tab, except when using ALT+TAB
rubidium@10379: 		 * to switch to another application */
rubidium@10380: 		if (key[KEY_TAB] && (key_shifts & KB_ALT_FLAG) == 0)
rubidium@10379: #endif
rubidium@10379: 		{
rubidium@10379: 			if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
rubidium@10379: 		} else if (_fast_forward & 2) {
rubidium@10379: 			_fast_forward = 0;
rubidium@10379: 		}
rubidium@10379: 
rubidium@10379: 		cur_ticks = GetTime();
rubidium@10379: 		if (cur_ticks >= next_tick || (_fast_forward && !_pause_game) || cur_ticks < prev_cur_ticks) {
rubidium@10379: 			_realtime_tick += cur_ticks - last_cur_ticks;
rubidium@10379: 			last_cur_ticks = cur_ticks;
rubidium@10379: 			next_tick = cur_ticks + 30;
rubidium@10379: 
rubidium@10379: 			bool old_ctrl_pressed = _ctrl_pressed;
rubidium@10379: 
rubidium@10379: 			_ctrl_pressed  = !!(key_shifts & KB_CTRL_FLAG);
rubidium@10379: 			_shift_pressed = !!(key_shifts & KB_SHIFT_FLAG);
rubidium@10379: 
rubidium@10379: 			/* determine which directional keys are down */
rubidium@10379: 			_dirkeys =
rubidium@10379: 				(key[KEY_LEFT]  ? 1 : 0) |
rubidium@10379: 				(key[KEY_UP]    ? 2 : 0) |
rubidium@10379: 				(key[KEY_RIGHT] ? 4 : 0) |
rubidium@10379: 				(key[KEY_DOWN]  ? 8 : 0);
rubidium@10379: 
rubidium@10379: 			if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
rubidium@10379: 
rubidium@10379: 			GameLoop();
rubidium@10379: 
rubidium@10379: 			_screen.dst_ptr = _allegro_screen->line[0];
rubidium@10379: 			UpdateWindows();
rubidium@10379: 			if (++pal_tick > 4) {
rubidium@10379: 				CheckPaletteAnim();
rubidium@10379: 				pal_tick = 1;
rubidium@10379: 			}
rubidium@10379: 			DrawSurfaceToScreen();
rubidium@10379: 		} else {
rubidium@10379: 			CSleep(1);
rubidium@10379: 			_screen.dst_ptr = _allegro_screen->line[0];
rubidium@10379: 			NetworkDrawChatMessage();
rubidium@10379: 			DrawMouseCursor();
rubidium@10379: 			DrawSurfaceToScreen();
rubidium@10379: 		}
rubidium@10379: 	}
rubidium@10379: }
rubidium@10379: 
rubidium@10379: bool VideoDriver_Allegro::ChangeResolution(int w, int h)
rubidium@10379: {
rubidium@10379: 	return CreateMainSurface(w, h);
rubidium@10379: }
rubidium@10379: 
rubidium@10379: bool VideoDriver_Allegro::ToggleFullscreen(bool fullscreen)
rubidium@10379: {
rubidium@10379: 	_fullscreen = fullscreen;
rubidium@10379: 	GetVideoModes(); // get the list of available video modes
rubidium@10379: 	if (_num_resolutions == 0 || !this->ChangeResolution(_cur_resolution.width, _cur_resolution.height)) {
rubidium@10379: 		/* switching resolution failed, put back full_screen to original status */
rubidium@10379: 		_fullscreen ^= true;
rubidium@10379: 		return false;
rubidium@10379: 	}
rubidium@10379: 	return true;
rubidium@10379: }
rubidium@10379: 
rubidium@10379: #endif /* WITH_ALLEGRO */