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00017 #ifdef WITH_ALLEGRO
00018
00019 #include "../stdafx.h"
00020 #include "../openttd.h"
00021 #include "../debug.h"
00022 #include "../gfx_func.h"
00023 #include "../variables.h"
00024 #include "../rev.h"
00025 #include "../blitter/factory.hpp"
00026 #include "../network/network.h"
00027 #include "../core/math_func.hpp"
00028 #include "../core/random_func.hpp"
00029 #include "../functions.h"
00030 #include "../texteff.hpp"
00031 #include "allegro_v.h"
00032 #include <allegro.h>
00033
00034 #ifdef _DEBUG
00035
00036
00037 #include <signal.h>
00038 #endif
00039
00040 static FVideoDriver_Allegro iFVideoDriver_Allegro;
00041
00042 static BITMAP *_allegro_screen;
00043
00044 #define MAX_DIRTY_RECTS 100
00045 static PointDimension _dirty_rects[MAX_DIRTY_RECTS];
00046 static int _num_dirty_rects;
00047
00048 void VideoDriver_Allegro::MakeDirty(int left, int top, int width, int height)
00049 {
00050 if (_num_dirty_rects < MAX_DIRTY_RECTS) {
00051 _dirty_rects[_num_dirty_rects].x = left;
00052 _dirty_rects[_num_dirty_rects].y = top;
00053 _dirty_rects[_num_dirty_rects].width = width;
00054 _dirty_rects[_num_dirty_rects].height = height;
00055 }
00056 _num_dirty_rects++;
00057 }
00058
00059 static void DrawSurfaceToScreen()
00060 {
00061 int n = _num_dirty_rects;
00062 if (n == 0) return;
00063
00064 _num_dirty_rects = 0;
00065 if (n > MAX_DIRTY_RECTS) {
00066 blit(_allegro_screen, screen, 0, 0, 0, 0, _allegro_screen->w, _allegro_screen->h);
00067 return;
00068 }
00069
00070 for (int i = 0; i < n; i++) {
00071 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);
00072 }
00073 }
00074
00075
00076 static void UpdatePalette(uint start, uint count)
00077 {
00078 static PALETTE pal;
00079
00080 uint end = start + count;
00081 for (uint i = start; i != end; i++) {
00082 pal[i].r = _cur_palette[i].r / 4;
00083 pal[i].g = _cur_palette[i].g / 4;
00084 pal[i].b = _cur_palette[i].b / 4;
00085 pal[i].filler = 0;
00086 }
00087
00088 set_palette_range(pal, start, end - 1, 1);
00089 }
00090
00091 static void InitPalette()
00092 {
00093 UpdatePalette(0, 256);
00094 }
00095
00096 static void CheckPaletteAnim()
00097 {
00098 if (_pal_count_dirty != 0) {
00099 Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00100
00101 switch (blitter->UsePaletteAnimation()) {
00102 case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00103 UpdatePalette(_pal_first_dirty, _pal_count_dirty);
00104 break;
00105
00106 case Blitter::PALETTE_ANIMATION_BLITTER:
00107 blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
00108 break;
00109
00110 case Blitter::PALETTE_ANIMATION_NONE:
00111 break;
00112
00113 default:
00114 NOT_REACHED();
00115 }
00116 _pal_count_dirty = 0;
00117 }
00118 }
00119
00120 static const Dimension default_resolutions[] = {
00121 { 640, 480},
00122 { 800, 600},
00123 {1024, 768},
00124 {1152, 864},
00125 {1280, 800},
00126 {1280, 960},
00127 {1280, 1024},
00128 {1400, 1050},
00129 {1600, 1200},
00130 {1680, 1050},
00131 {1920, 1200}
00132 };
00133
00134 static void GetVideoModes()
00135 {
00136
00137
00138 set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
00139
00140 GFX_MODE_LIST *mode_list = get_gfx_mode_list(gfx_driver->id);
00141 if (mode_list == NULL) {
00142 memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
00143 _num_resolutions = lengthof(default_resolutions);
00144 return;
00145 }
00146
00147 GFX_MODE *modes = mode_list->mode;
00148
00149 int n = 0;
00150 for (int i = 0; modes[i].bpp != 0; i++) {
00151 uint w = modes[i].width;
00152 uint h = modes[i].height;
00153 if (w >= 640 && h >= 480) {
00154 int j;
00155 for (j = 0; j < n; j++) {
00156 if (_resolutions[j].width == w && _resolutions[j].height == h) break;
00157 }
00158
00159 if (j == n) {
00160 _resolutions[j].width = w;
00161 _resolutions[j].height = h;
00162 if (++n == lengthof(_resolutions)) break;
00163 }
00164 }
00165 }
00166 _num_resolutions = n;
00167 SortResolutions(_num_resolutions);
00168
00169 destroy_gfx_mode_list(mode_list);
00170 }
00171
00172 static void GetAvailableVideoMode(uint *w, uint *h)
00173 {
00174
00175 if (_num_resolutions == 0) return;
00176
00177
00178 for (int i = 0; i != _num_resolutions; i++) {
00179 if (*w == _resolutions[i].width && *h == _resolutions[i].height) return;
00180 }
00181
00182
00183 int best = 0;
00184 uint delta = Delta(_resolutions[0].width, *w) * Delta(_resolutions[0].height, *h);
00185 for (int i = 1; i != _num_resolutions; ++i) {
00186 uint newdelta = Delta(_resolutions[i].width, *w) * Delta(_resolutions[i].height, *h);
00187 if (newdelta < delta) {
00188 best = i;
00189 delta = newdelta;
00190 }
00191 }
00192 *w = _resolutions[best].width;
00193 *h = _resolutions[best].height;
00194 }
00195
00196 static bool CreateMainSurface(uint w, uint h)
00197 {
00198 int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00199 if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
00200 set_color_depth(bpp);
00201
00202 GetAvailableVideoMode(&w, &h);
00203 if (set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, w, h, 0, 0) != 0) {
00204 DEBUG(driver, 0, "Allegro: Couldn't allocate a window to draw on '%s'", allegro_error);
00205 return false;
00206 }
00207
00208
00209
00210 _allegro_screen = create_bitmap_ex(bpp, screen->cr - screen->cl, screen->cb - screen->ct);
00211 _screen.width = _allegro_screen->w;
00212 _screen.height = _allegro_screen->h;
00213 _screen.pitch = ((byte*)screen->line[1] - (byte*)screen->line[0]) / (bpp / 8);
00214 _screen.dst_ptr = _allegro_screen->line[0];
00215
00216
00217 memset(_screen.dst_ptr, 0, _screen.height * _screen.pitch);
00218
00219
00220 poll_mouse();
00221 _cursor.pos.x = mouse_x;
00222 _cursor.pos.y = mouse_y;
00223
00224 InitPalette();
00225
00226 char caption[32];
00227 snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
00228 set_window_title(caption);
00229
00230 GameSizeChanged();
00231
00232 return true;
00233 }
00234
00235 struct VkMapping {
00236 uint16 vk_from;
00237 byte vk_count;
00238 byte map_to;
00239 };
00240
00241 #define AS(x, z) {x, 0, z}
00242 #define AM(x, y, z, w) {x, y - x, z}
00243
00244 static const VkMapping _vk_mapping[] = {
00245
00246 AM(KEY_PGUP, KEY_PGDN, WKC_PAGEUP, WKC_PAGEDOWN),
00247 AS(KEY_UP, WKC_UP),
00248 AS(KEY_DOWN, WKC_DOWN),
00249 AS(KEY_LEFT, WKC_LEFT),
00250 AS(KEY_RIGHT, WKC_RIGHT),
00251
00252 AS(KEY_HOME, WKC_HOME),
00253 AS(KEY_END, WKC_END),
00254
00255 AS(KEY_INSERT, WKC_INSERT),
00256 AS(KEY_DEL, WKC_DELETE),
00257
00258
00259 AM(KEY_A, KEY_Z, 'A', 'Z'),
00260 AM(KEY_0, KEY_9, '0', '9'),
00261
00262 AS(KEY_ESC, WKC_ESC),
00263 AS(KEY_PAUSE, WKC_PAUSE),
00264 AS(KEY_BACKSPACE, WKC_BACKSPACE),
00265
00266 AS(KEY_SPACE, WKC_SPACE),
00267 AS(KEY_ENTER, WKC_RETURN),
00268 AS(KEY_TAB, WKC_TAB),
00269
00270
00271 AM(KEY_F1, KEY_F12, WKC_F1, WKC_F12),
00272
00273
00274 AM(KEY_0_PAD, KEY_9_PAD, '0', '9'),
00275 AS(KEY_SLASH_PAD, WKC_NUM_DIV),
00276 AS(KEY_ASTERISK, WKC_NUM_MUL),
00277 AS(KEY_MINUS_PAD, WKC_NUM_MINUS),
00278 AS(KEY_PLUS_PAD, WKC_NUM_PLUS),
00279 AS(KEY_ENTER_PAD, WKC_NUM_ENTER),
00280 AS(KEY_DEL_PAD, WKC_DELETE),
00281
00282
00283 AS(KEY_SLASH, WKC_SLASH),
00284 AS(KEY_SEMICOLON, WKC_SEMICOLON),
00285 AS(KEY_EQUALS, WKC_EQUALS),
00286 AS(KEY_OPENBRACE, WKC_L_BRACKET),
00287 AS(KEY_BACKSLASH, WKC_BACKSLASH),
00288 AS(KEY_CLOSEBRACE, WKC_R_BRACKET),
00289
00290 AS(KEY_QUOTE, WKC_SINGLEQUOTE),
00291 AS(KEY_COMMA, WKC_COMMA),
00292 AS(KEY_MINUS, WKC_MINUS),
00293 AS(KEY_STOP, WKC_PERIOD),
00294 AS(KEY_TILDE, WKC_BACKQUOTE),
00295 };
00296
00297 static uint32 ConvertAllegroKeyIntoMy()
00298 {
00299 int scancode;
00300 int unicode = ureadkey(&scancode);
00301
00302 const VkMapping *map;
00303 uint key = 0;
00304
00305 for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
00306 if ((uint)(scancode - map->vk_from) <= map->vk_count) {
00307 key = scancode - map->vk_from + map->map_to;
00308 break;
00309 }
00310 }
00311
00312 if (key_shifts & KB_SHIFT_FLAG) key |= WKC_SHIFT;
00313 if (key_shifts & KB_CTRL_FLAG) key |= WKC_CTRL;
00314 if (key_shifts & KB_ALT_FLAG) key |= WKC_ALT;
00315 #if 0
00316 DEBUG(driver, 0, "Scancode character pressed %u", scancode);
00317 DEBUG(driver, 0, "Unicode character pressed %u", unicode);
00318 #endif
00319 return (key << 16) + unicode;
00320 }
00321
00322 enum {
00323 LEFT_BUTTON,
00324 RIGHT_BUTTON,
00325 };
00326
00327 static void PollEvent()
00328 {
00329 poll_mouse();
00330
00331 bool mouse_action = false;
00332
00333
00334 static int prev_button_state;
00335 if (prev_button_state != mouse_b) {
00336 uint diff = prev_button_state ^ mouse_b;
00337 while (diff != 0) {
00338 int button = FindFirstBit(diff);
00339 ClrBit(diff, button);
00340 if (HasBit(mouse_b, button)) {
00341
00342 if (_rightclick_emulate && (key_shifts & KB_CTRL_FLAG)) {
00343 button = RIGHT_BUTTON;
00344 ClrBit(diff, RIGHT_BUTTON);
00345 }
00346 switch (button) {
00347 case LEFT_BUTTON:
00348 _left_button_down = true;
00349 break;
00350
00351 case RIGHT_BUTTON:
00352 _right_button_down = true;
00353 _right_button_clicked = true;
00354 break;
00355
00356 default:
00357
00358 break;
00359 }
00360 } else {
00361
00362 if (_rightclick_emulate) {
00363 _right_button_down = false;
00364 _left_button_down = false;
00365 _left_button_clicked = false;
00366 } else if (button == LEFT_BUTTON) {
00367 _left_button_down = false;
00368 _left_button_clicked = false;
00369 } else if (button == RIGHT_BUTTON) {
00370 _right_button_down = false;
00371 }
00372 }
00373 }
00374 prev_button_state = mouse_b;
00375 mouse_action = true;
00376 }
00377
00378
00379 int dx = mouse_x - _cursor.pos.x;
00380 int dy = mouse_y - _cursor.pos.y;
00381 if (dx != 0 || dy != 0) {
00382 if (_cursor.fix_at) {
00383 _cursor.delta.x = dx;
00384 _cursor.delta.y = dy;
00385 position_mouse(_cursor.pos.x, _cursor.pos.y);
00386 } else {
00387 _cursor.delta.x = dx;
00388 _cursor.delta.y = dy;
00389 _cursor.pos.x = mouse_x;
00390 _cursor.pos.y = mouse_y;
00391 _cursor.dirty = true;
00392 }
00393 mouse_action = true;
00394 }
00395
00396 static int prev_mouse_z = 0;
00397 if (prev_mouse_z != mouse_z) {
00398 _cursor.wheel = (prev_mouse_z - mouse_z) < 0 ? -1 : 1;
00399 prev_mouse_z = mouse_z;
00400 mouse_action = true;
00401 }
00402
00403 if (mouse_action) HandleMouseEvents();
00404
00405 poll_keyboard();
00406 if ((key_shifts & KB_ALT_FLAG) && (key[KEY_ENTER] || key[KEY_F])) {
00407 ToggleFullScreen(!_fullscreen);
00408 } else if (keypressed()) {
00409 HandleKeypress(ConvertAllegroKeyIntoMy());
00410 }
00411 }
00412
00415 int _allegro_instance_count = 0;
00416
00417 const char *VideoDriver_Allegro::Start(const char * const *parm)
00418 {
00419 if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) {
00420 DEBUG(driver, 0, "allegro: install_allegro failed '%s'", allegro_error);
00421 return "Failed to set up Allegro";
00422 }
00423 _allegro_instance_count++;
00424
00425 install_timer();
00426 install_mouse();
00427 install_keyboard();
00428
00429 #if defined _DEBUG
00430
00431
00432 signal(SIGABRT, NULL);
00433 signal(SIGSEGV, NULL);
00434 #endif
00435
00436 #if defined(DOS)
00437
00438
00439 _fullscreen = true;
00440 #endif
00441
00442 GetVideoModes();
00443 if (!CreateMainSurface(_cur_resolution.width, _cur_resolution.height)) {
00444 return "Failed to set up Allegro video";
00445 }
00446 MarkWholeScreenDirty();
00447 set_close_button_callback(HandleExitGameRequest);
00448
00449 return NULL;
00450 }
00451
00452 void VideoDriver_Allegro::Stop()
00453 {
00454 if (--_allegro_instance_count == 0) allegro_exit();
00455 }
00456
00457 #if defined(UNIX) || defined(__OS2__) || defined(PSP) || defined(DOS)
00458 # include <sys/time.h>
00459
00460 static uint32 GetTime()
00461 {
00462 struct timeval tim;
00463
00464 gettimeofday(&tim, NULL);
00465 return tim.tv_usec / 1000 + tim.tv_sec * 1000;
00466 }
00467 #else
00468 static uint32 GetTime()
00469 {
00470 return GetTickCount();
00471 }
00472 #endif
00473
00474
00475 void VideoDriver_Allegro::MainLoop()
00476 {
00477 uint32 cur_ticks = GetTime();
00478 uint32 last_cur_ticks = cur_ticks;
00479 uint32 next_tick = cur_ticks + 30;
00480 uint32 pal_tick = 0;
00481
00482 for (;;) {
00483 uint32 prev_cur_ticks = cur_ticks;
00484 InteractiveRandom();
00485
00486 PollEvent();
00487 if (_exit_game) return;
00488
00489 #if defined(_DEBUG)
00490 if (_shift_pressed)
00491 #else
00492
00493
00494 if (key[KEY_TAB] && (key_shifts & KB_ALT_FLAG) == 0)
00495 #endif
00496 {
00497 if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
00498 } else if (_fast_forward & 2) {
00499 _fast_forward = 0;
00500 }
00501
00502 cur_ticks = GetTime();
00503 if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode) || cur_ticks < prev_cur_ticks) {
00504 _realtime_tick += cur_ticks - last_cur_ticks;
00505 last_cur_ticks = cur_ticks;
00506 next_tick = cur_ticks + 30;
00507
00508 bool old_ctrl_pressed = _ctrl_pressed;
00509
00510 _ctrl_pressed = !!(key_shifts & KB_CTRL_FLAG);
00511 _shift_pressed = !!(key_shifts & KB_SHIFT_FLAG);
00512
00513
00514 _dirkeys =
00515 (key[KEY_LEFT] ? 1 : 0) |
00516 (key[KEY_UP] ? 2 : 0) |
00517 (key[KEY_RIGHT] ? 4 : 0) |
00518 (key[KEY_DOWN] ? 8 : 0);
00519
00520 if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
00521
00522 GameLoop();
00523
00524 UpdateWindows();
00525 if (++pal_tick > 4) {
00526 CheckPaletteAnim();
00527 pal_tick = 1;
00528 }
00529 DrawSurfaceToScreen();
00530 } else {
00531 CSleep(1);
00532 NetworkDrawChatMessage();
00533 DrawMouseCursor();
00534 DrawSurfaceToScreen();
00535 }
00536 }
00537 }
00538
00539 bool VideoDriver_Allegro::ChangeResolution(int w, int h)
00540 {
00541 return CreateMainSurface(w, h);
00542 }
00543
00544 bool VideoDriver_Allegro::ToggleFullscreen(bool fullscreen)
00545 {
00546 #ifdef DOS
00547 return false;
00548 #else
00549 _fullscreen = fullscreen;
00550 GetVideoModes();
00551 if (_num_resolutions == 0 || !this->ChangeResolution(_cur_resolution.width, _cur_resolution.height)) {
00552
00553 _fullscreen ^= true;
00554 return false;
00555 }
00556 return true;
00557 #endif
00558 }
00559
00560 #endif