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00012 #ifdef WITH_SDL
00013
00014 #include "../stdafx.h"
00015 #include "../openttd.h"
00016 #include "../gfx_func.h"
00017 #include "../sdl.h"
00018 #include "../rev.h"
00019 #include "../blitter/factory.hpp"
00020 #include "../network/network.h"
00021 #include "../thread/thread.h"
00022 #include "../progress.h"
00023 #include "../core/random_func.hpp"
00024 #include "../core/math_func.hpp"
00025 #include "../fileio_func.h"
00026 #include "sdl_v.h"
00027 #include <SDL.h>
00028
00029 static FVideoDriver_SDL iFVideoDriver_SDL;
00030
00031 static SDL_Surface *_sdl_screen;
00032 static SDL_Surface *_sdl_realscreen;
00033 static bool _all_modes;
00034
00036 static bool _draw_threaded;
00038 static ThreadObject *_draw_thread = NULL;
00040 static ThreadMutex *_draw_mutex = NULL;
00042 static volatile bool _draw_continue;
00043 static Palette _local_palette;
00044
00045 #define MAX_DIRTY_RECTS 100
00046 static SDL_Rect _dirty_rects[MAX_DIRTY_RECTS];
00047 static int _num_dirty_rects;
00048 static int _use_hwpalette;
00049 static int _requested_hwpalette;
00050
00051 void VideoDriver_SDL::MakeDirty(int left, int top, int width, int height)
00052 {
00053 if (_num_dirty_rects < MAX_DIRTY_RECTS) {
00054 _dirty_rects[_num_dirty_rects].x = left;
00055 _dirty_rects[_num_dirty_rects].y = top;
00056 _dirty_rects[_num_dirty_rects].w = width;
00057 _dirty_rects[_num_dirty_rects].h = height;
00058 }
00059 _num_dirty_rects++;
00060 }
00061
00062 static void UpdatePalette(bool init = false)
00063 {
00064 SDL_Color pal[256];
00065
00066 for (int i = 0; i != _local_palette.count_dirty; i++) {
00067 pal[i].r = _local_palette.palette[_local_palette.first_dirty + i].r;
00068 pal[i].g = _local_palette.palette[_local_palette.first_dirty + i].g;
00069 pal[i].b = _local_palette.palette[_local_palette.first_dirty + i].b;
00070 pal[i].unused = 0;
00071 }
00072
00073 SDL_CALL SDL_SetColors(_sdl_screen, pal, _local_palette.first_dirty, _local_palette.count_dirty);
00074
00075 if (_sdl_screen != _sdl_realscreen && init) {
00076
00077
00078
00079
00080
00081
00082
00083
00084
00085
00086
00087
00088
00089
00090
00091
00092
00093
00094
00095
00096 SDL_CALL SDL_SetColors(_sdl_realscreen, pal, _local_palette.first_dirty, _local_palette.count_dirty);
00097 }
00098
00099 if (_sdl_screen != _sdl_realscreen && !init) {
00100
00101
00102
00103
00104
00105
00106
00107
00108
00109
00110 SDL_CALL SDL_BlitSurface(_sdl_screen, NULL, _sdl_realscreen, NULL);
00111 SDL_CALL SDL_UpdateRect(_sdl_realscreen, 0, 0, 0, 0);
00112 }
00113 }
00114
00115 static void InitPalette()
00116 {
00117 _local_palette = _cur_palette;
00118 _local_palette.first_dirty = 0;
00119 _local_palette.count_dirty = 256;
00120 UpdatePalette(true);
00121 }
00122
00123 static void CheckPaletteAnim()
00124 {
00125 if (_cur_palette.count_dirty != 0) {
00126 Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00127
00128 switch (blitter->UsePaletteAnimation()) {
00129 case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00130 UpdatePalette();
00131 break;
00132
00133 case Blitter::PALETTE_ANIMATION_BLITTER:
00134 blitter->PaletteAnimate(_local_palette);
00135 break;
00136
00137 case Blitter::PALETTE_ANIMATION_NONE:
00138 break;
00139
00140 default:
00141 NOT_REACHED();
00142 }
00143 _cur_palette.count_dirty = 0;
00144 }
00145 }
00146
00147 static void DrawSurfaceToScreen()
00148 {
00149 int n = _num_dirty_rects;
00150 if (n == 0) return;
00151
00152 _num_dirty_rects = 0;
00153 if (n > MAX_DIRTY_RECTS) {
00154 if (_sdl_screen != _sdl_realscreen) {
00155 SDL_CALL SDL_BlitSurface(_sdl_screen, NULL, _sdl_realscreen, NULL);
00156 }
00157 SDL_CALL SDL_UpdateRect(_sdl_realscreen, 0, 0, 0, 0);
00158 } else {
00159 if (_sdl_screen != _sdl_realscreen) {
00160 for (int i = 0; i < n; i++) {
00161 SDL_CALL SDL_BlitSurface(_sdl_screen, &_dirty_rects[i], _sdl_realscreen, &_dirty_rects[i]);
00162 }
00163 }
00164 SDL_CALL SDL_UpdateRects(_sdl_realscreen, n, _dirty_rects);
00165 }
00166 }
00167
00168 static void DrawSurfaceToScreenThread(void *)
00169 {
00170
00171 _draw_mutex->BeginCritical();
00172 _draw_mutex->SendSignal();
00173
00174
00175 _draw_mutex->WaitForSignal();
00176
00177 while (_draw_continue) {
00178 CheckPaletteAnim();
00179
00180 DrawSurfaceToScreen();
00181 _draw_mutex->WaitForSignal();
00182 }
00183
00184 _draw_mutex->EndCritical();
00185 _draw_thread->Exit();
00186 }
00187
00188 static const Dimension _default_resolutions[] = {
00189 { 640, 480},
00190 { 800, 600},
00191 {1024, 768},
00192 {1152, 864},
00193 {1280, 800},
00194 {1280, 960},
00195 {1280, 1024},
00196 {1400, 1050},
00197 {1600, 1200},
00198 {1680, 1050},
00199 {1920, 1200}
00200 };
00201
00202 static void GetVideoModes()
00203 {
00204 SDL_Rect **modes = SDL_CALL SDL_ListModes(NULL, SDL_SWSURFACE | SDL_FULLSCREEN);
00205 if (modes == NULL) usererror("sdl: no modes available");
00206
00207 _all_modes = (SDL_CALL SDL_ListModes(NULL, SDL_SWSURFACE | (_fullscreen ? SDL_FULLSCREEN : 0)) == (void*)-1);
00208 if (modes == (void*)-1) {
00209 int n = 0;
00210 for (uint i = 0; i < lengthof(_default_resolutions); i++) {
00211 if (SDL_CALL SDL_VideoModeOK(_default_resolutions[i].width, _default_resolutions[i].height, 8, SDL_FULLSCREEN) != 0) {
00212 _resolutions[n] = _default_resolutions[i];
00213 if (++n == lengthof(_resolutions)) break;
00214 }
00215 }
00216 _num_resolutions = n;
00217 } else {
00218 int n = 0;
00219 for (int i = 0; modes[i]; i++) {
00220 uint w = modes[i]->w;
00221 uint h = modes[i]->h;
00222 int j;
00223 for (j = 0; j < n; j++) {
00224 if (_resolutions[j].width == w && _resolutions[j].height == h) break;
00225 }
00226
00227 if (j == n) {
00228 _resolutions[j].width = w;
00229 _resolutions[j].height = h;
00230 if (++n == lengthof(_resolutions)) break;
00231 }
00232 }
00233 _num_resolutions = n;
00234 SortResolutions(_num_resolutions);
00235 }
00236 }
00237
00238 static void GetAvailableVideoMode(uint *w, uint *h)
00239 {
00240
00241 if (_all_modes || _num_resolutions == 0) return;
00242
00243
00244 for (int i = 0; i != _num_resolutions; i++) {
00245 if (*w == _resolutions[i].width && *h == _resolutions[i].height) return;
00246 }
00247
00248
00249 int best = 0;
00250 uint delta = Delta(_resolutions[0].width, *w) * Delta(_resolutions[0].height, *h);
00251 for (int i = 1; i != _num_resolutions; ++i) {
00252 uint newdelta = Delta(_resolutions[i].width, *w) * Delta(_resolutions[i].height, *h);
00253 if (newdelta < delta) {
00254 best = i;
00255 delta = newdelta;
00256 }
00257 }
00258 *w = _resolutions[best].width;
00259 *h = _resolutions[best].height;
00260 }
00261
00262 #ifdef WIN32
00263
00264
00265 #undef SDL_LoadBMP
00266 #define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_CALL SDL_RWFromFile(file, "rb"), 1)
00267 #endif
00268
00269 bool VideoDriver_SDL::CreateMainSurface(uint w, uint h)
00270 {
00271 SDL_Surface *newscreen, *icon;
00272 char caption[50];
00273 int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00274 bool want_hwpalette;
00275
00276 GetAvailableVideoMode(&w, &h);
00277
00278 DEBUG(driver, 1, "SDL: using mode %ux%ux%d", w, h, bpp);
00279
00280 if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
00281
00282 char icon_path[MAX_PATH];
00283 if (FioFindFullPath(icon_path, lengthof(icon_path), BASESET_DIR, "openttd.32.bmp") != NULL) {
00284
00285 icon = SDL_CALL SDL_LoadBMP(icon_path);
00286 if (icon != NULL) {
00287
00288 uint32 rgbmap = SDL_CALL SDL_MapRGB(icon->format, 255, 0, 255);
00289
00290 SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);
00291 SDL_CALL SDL_WM_SetIcon(icon, NULL);
00292 SDL_CALL SDL_FreeSurface(icon);
00293 }
00294 }
00295
00296 if (_use_hwpalette == 2) {
00297
00298
00299
00300
00301
00302
00303
00304
00305
00306
00307
00308
00309
00310
00311
00312
00313
00314
00315
00316
00317
00318 want_hwpalette = (bpp == 8 && _fullscreen);
00319 } else {
00320
00321 want_hwpalette = _use_hwpalette;
00322 }
00323
00324 if (want_hwpalette) DEBUG(driver, 1, "SDL: requesting hardware palete");
00325
00326
00327 if (_sdl_screen != NULL && _sdl_screen != _sdl_realscreen) SDL_CALL SDL_FreeSurface(_sdl_screen);
00328
00329 if (_sdl_realscreen != NULL) {
00330 if (_requested_hwpalette != want_hwpalette) {
00331
00332
00333
00334
00335
00336
00337
00338
00339 DEBUG(driver, 0, "SDL: Restarting SDL video subsystem, to force hwpalette change");
00340 SDL_CALL SDL_QuitSubSystem(SDL_INIT_VIDEO);
00341 SDL_CALL SDL_InitSubSystem(SDL_INIT_VIDEO);
00342 ClaimMousePointer();
00343 }
00344 }
00345
00346
00347
00348
00349 _requested_hwpalette = want_hwpalette;
00350
00351
00352 newscreen = SDL_CALL SDL_SetVideoMode(w, h, bpp, SDL_SWSURFACE | (want_hwpalette ? SDL_HWPALETTE : 0) | (_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE));
00353 if (newscreen == NULL) {
00354 DEBUG(driver, 0, "SDL: Couldn't allocate a window to draw on");
00355 return false;
00356 }
00357 _sdl_realscreen = newscreen;
00358
00359 if (bpp == 8 && (_sdl_realscreen->flags & SDL_HWPALETTE) != SDL_HWPALETTE) {
00360
00361
00362
00363
00364
00365
00366
00367
00368
00369
00370
00371
00372
00373
00374
00375
00376
00377
00378 DEBUG(driver, 1, "SDL: using shadow surface");
00379 newscreen = SDL_CALL SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, bpp, 0, 0, 0, 0);
00380 if (newscreen == NULL) {
00381 DEBUG(driver, 0, "SDL: Couldn't allocate a shadow surface to draw on");
00382 return false;
00383 }
00384 }
00385
00386
00387 _num_dirty_rects = 0;
00388
00389 _screen.width = newscreen->w;
00390 _screen.height = newscreen->h;
00391 _screen.pitch = newscreen->pitch / (bpp / 8);
00392 _screen.dst_ptr = newscreen->pixels;
00393 _sdl_screen = newscreen;
00394
00395 Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00396 blitter->PostResize();
00397
00398 InitPalette();
00399 switch (blitter->UsePaletteAnimation()) {
00400 case Blitter::PALETTE_ANIMATION_NONE:
00401 case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00402 UpdatePalette();
00403 break;
00404
00405 case Blitter::PALETTE_ANIMATION_BLITTER:
00406 if (_video_driver != NULL) blitter->PaletteAnimate(_local_palette);
00407 break;
00408
00409 default:
00410 NOT_REACHED();
00411 }
00412
00413 snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
00414 SDL_CALL SDL_WM_SetCaption(caption, caption);
00415
00416 GameSizeChanged();
00417
00418 return true;
00419 }
00420
00421 bool VideoDriver_SDL::ClaimMousePointer()
00422 {
00423 SDL_CALL SDL_ShowCursor(0);
00424 return true;
00425 }
00426
00427 struct VkMapping {
00428 #if SDL_VERSION_ATLEAST(1, 3, 0)
00429 SDL_Keycode vk_from;
00430 #else
00431 uint16 vk_from;
00432 #endif
00433 byte vk_count;
00434 byte map_to;
00435 };
00436
00437 #define AS(x, z) {x, 0, z}
00438 #define AM(x, y, z, w) {x, (byte)(y - x), z}
00439
00440 static const VkMapping _vk_mapping[] = {
00441
00442 AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),
00443 AS(SDLK_UP, WKC_UP),
00444 AS(SDLK_DOWN, WKC_DOWN),
00445 AS(SDLK_LEFT, WKC_LEFT),
00446 AS(SDLK_RIGHT, WKC_RIGHT),
00447
00448 AS(SDLK_HOME, WKC_HOME),
00449 AS(SDLK_END, WKC_END),
00450
00451 AS(SDLK_INSERT, WKC_INSERT),
00452 AS(SDLK_DELETE, WKC_DELETE),
00453
00454
00455 AM(SDLK_a, SDLK_z, 'A', 'Z'),
00456 AM(SDLK_0, SDLK_9, '0', '9'),
00457
00458 AS(SDLK_ESCAPE, WKC_ESC),
00459 AS(SDLK_PAUSE, WKC_PAUSE),
00460 AS(SDLK_BACKSPACE, WKC_BACKSPACE),
00461
00462 AS(SDLK_SPACE, WKC_SPACE),
00463 AS(SDLK_RETURN, WKC_RETURN),
00464 AS(SDLK_TAB, WKC_TAB),
00465
00466
00467 AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),
00468
00469
00470 AM(SDLK_KP0, SDLK_KP9, '0', '9'),
00471 AS(SDLK_KP_DIVIDE, WKC_NUM_DIV),
00472 AS(SDLK_KP_MULTIPLY, WKC_NUM_MUL),
00473 AS(SDLK_KP_MINUS, WKC_NUM_MINUS),
00474 AS(SDLK_KP_PLUS, WKC_NUM_PLUS),
00475 AS(SDLK_KP_ENTER, WKC_NUM_ENTER),
00476 AS(SDLK_KP_PERIOD, WKC_NUM_DECIMAL),
00477
00478
00479 AS(SDLK_SLASH, WKC_SLASH),
00480 AS(SDLK_SEMICOLON, WKC_SEMICOLON),
00481 AS(SDLK_EQUALS, WKC_EQUALS),
00482 AS(SDLK_LEFTBRACKET, WKC_L_BRACKET),
00483 AS(SDLK_BACKSLASH, WKC_BACKSLASH),
00484 AS(SDLK_RIGHTBRACKET, WKC_R_BRACKET),
00485
00486 AS(SDLK_QUOTE, WKC_SINGLEQUOTE),
00487 AS(SDLK_COMMA, WKC_COMMA),
00488 AS(SDLK_MINUS, WKC_MINUS),
00489 AS(SDLK_PERIOD, WKC_PERIOD)
00490 };
00491
00492 static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)
00493 {
00494 const VkMapping *map;
00495 uint key = 0;
00496
00497 for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
00498 if ((uint)(sym->sym - map->vk_from) <= map->vk_count) {
00499 key = sym->sym - map->vk_from + map->map_to;
00500 break;
00501 }
00502 }
00503
00504
00505 #if defined(WIN32) || defined(__OS2__)
00506 if (sym->scancode == 41) key = WKC_BACKQUOTE;
00507 #elif defined(__APPLE__)
00508 if (sym->scancode == 10) key = WKC_BACKQUOTE;
00509 #elif defined(__MORPHOS__)
00510 if (sym->scancode == 0) key = WKC_BACKQUOTE;
00511 #elif defined(__BEOS__)
00512 if (sym->scancode == 17) key = WKC_BACKQUOTE;
00513 #elif defined(__SVR4) && defined(__sun)
00514 if (sym->scancode == 60) key = WKC_BACKQUOTE;
00515 if (sym->scancode == 49) key = WKC_BACKSPACE;
00516 #elif defined(__sgi__)
00517 if (sym->scancode == 22) key = WKC_BACKQUOTE;
00518 #else
00519 if (sym->scancode == 49) key = WKC_BACKQUOTE;
00520 #endif
00521
00522
00523 if (sym->mod & KMOD_META) key |= WKC_META;
00524 if (sym->mod & KMOD_SHIFT) key |= WKC_SHIFT;
00525 if (sym->mod & KMOD_CTRL) key |= WKC_CTRL;
00526 if (sym->mod & KMOD_ALT) key |= WKC_ALT;
00527
00528 return (key << 16) + sym->unicode;
00529 }
00530
00531 int VideoDriver_SDL::PollEvent()
00532 {
00533 SDL_Event ev;
00534
00535 if (!SDL_CALL SDL_PollEvent(&ev)) return -2;
00536
00537 switch (ev.type) {
00538 case SDL_MOUSEMOTION:
00539 if (_cursor.fix_at) {
00540 int dx = ev.motion.x - _cursor.pos.x;
00541 int dy = ev.motion.y - _cursor.pos.y;
00542 if (dx != 0 || dy != 0) {
00543 _cursor.delta.x = dx;
00544 _cursor.delta.y = dy;
00545 SDL_CALL SDL_WarpMouse(_cursor.pos.x, _cursor.pos.y);
00546 }
00547 } else {
00548 _cursor.delta.x = ev.motion.x - _cursor.pos.x;
00549 _cursor.delta.y = ev.motion.y - _cursor.pos.y;
00550 _cursor.pos.x = ev.motion.x;
00551 _cursor.pos.y = ev.motion.y;
00552 _cursor.dirty = true;
00553 }
00554 HandleMouseEvents();
00555 break;
00556
00557 case SDL_MOUSEBUTTONDOWN:
00558 if (_rightclick_emulate && SDL_CALL SDL_GetModState() & KMOD_CTRL) {
00559 ev.button.button = SDL_BUTTON_RIGHT;
00560 }
00561
00562 switch (ev.button.button) {
00563 case SDL_BUTTON_LEFT:
00564 _left_button_down = true;
00565 break;
00566
00567 case SDL_BUTTON_RIGHT:
00568 _right_button_down = true;
00569 _right_button_clicked = true;
00570 break;
00571
00572 case SDL_BUTTON_WHEELUP: _cursor.wheel--; break;
00573 case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;
00574
00575 default: break;
00576 }
00577 HandleMouseEvents();
00578 break;
00579
00580 case SDL_MOUSEBUTTONUP:
00581 if (_rightclick_emulate) {
00582 _right_button_down = false;
00583 _left_button_down = false;
00584 _left_button_clicked = false;
00585 } else if (ev.button.button == SDL_BUTTON_LEFT) {
00586 _left_button_down = false;
00587 _left_button_clicked = false;
00588 } else if (ev.button.button == SDL_BUTTON_RIGHT) {
00589 _right_button_down = false;
00590 }
00591 HandleMouseEvents();
00592 break;
00593
00594 case SDL_ACTIVEEVENT:
00595 if (!(ev.active.state & SDL_APPMOUSEFOCUS)) break;
00596
00597 if (ev.active.gain) {
00598 _cursor.in_window = true;
00599 } else {
00600 UndrawMouseCursor();
00601 _cursor.in_window = false;
00602 }
00603 break;
00604
00605 case SDL_QUIT:
00606 HandleExitGameRequest();
00607 break;
00608
00609 case SDL_KEYDOWN:
00610 if ((ev.key.keysym.mod & (KMOD_ALT | KMOD_META)) &&
00611 (ev.key.keysym.sym == SDLK_RETURN || ev.key.keysym.sym == SDLK_f)) {
00612 ToggleFullScreen(!_fullscreen);
00613 } else {
00614 HandleKeypress(ConvertSdlKeyIntoMy(&ev.key.keysym));
00615 }
00616 break;
00617
00618 case SDL_VIDEORESIZE: {
00619 int w = max(ev.resize.w, 64);
00620 int h = max(ev.resize.h, 64);
00621 CreateMainSurface(w, h);
00622 break;
00623 }
00624 case SDL_VIDEOEXPOSE: {
00625
00626
00627
00628 _num_dirty_rects = MAX_DIRTY_RECTS + 1;
00629 break;
00630 }
00631 }
00632 return -1;
00633 }
00634
00635 const char *VideoDriver_SDL::Start(const char * const *parm)
00636 {
00637 char buf[30];
00638 _use_hwpalette = GetDriverParamInt(parm, "hw_palette", 2);
00639
00640 const char *s = SdlOpen(SDL_INIT_VIDEO);
00641 if (s != NULL) return s;
00642
00643 GetVideoModes();
00644 if (!CreateMainSurface(_cur_resolution.width, _cur_resolution.height)) {
00645 return SDL_CALL SDL_GetError();
00646 }
00647
00648 SDL_CALL SDL_VideoDriverName(buf, sizeof buf);
00649 DEBUG(driver, 1, "SDL: using driver '%s'", buf);
00650
00651 MarkWholeScreenDirty();
00652
00653 SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
00654 SDL_CALL SDL_EnableUNICODE(1);
00655
00656 _draw_threaded = GetDriverParam(parm, "no_threads") == NULL && GetDriverParam(parm, "no_thread") == NULL;
00657
00658 return NULL;
00659 }
00660
00661 void VideoDriver_SDL::Stop()
00662 {
00663 SdlClose(SDL_INIT_VIDEO);
00664 }
00665
00666 void VideoDriver_SDL::MainLoop()
00667 {
00668 uint32 cur_ticks = SDL_CALL SDL_GetTicks();
00669 uint32 last_cur_ticks = cur_ticks;
00670 uint32 next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00671 uint32 mod;
00672 int numkeys;
00673 Uint8 *keys;
00674
00675 CheckPaletteAnim();
00676
00677 if (_draw_threaded) {
00678
00679
00680 _draw_mutex = ThreadMutex::New();
00681 if (_draw_mutex == NULL) {
00682 _draw_threaded = false;
00683 } else {
00684 _draw_mutex->BeginCritical();
00685 _draw_continue = true;
00686
00687 _draw_threaded = ThreadObject::New(&DrawSurfaceToScreenThread, NULL, &_draw_thread);
00688
00689
00690 if (!_draw_threaded) {
00691 _draw_mutex->EndCritical();
00692 delete _draw_mutex;
00693 } else {
00694
00695 _draw_mutex->WaitForSignal();
00696 }
00697 }
00698 }
00699
00700 DEBUG(driver, 1, "SDL: using %sthreads", _draw_threaded ? "" : "no ");
00701
00702 for (;;) {
00703 uint32 prev_cur_ticks = cur_ticks;
00704 InteractiveRandom();
00705
00706 while (PollEvent() == -1) {}
00707 if (_exit_game) break;
00708
00709 mod = SDL_CALL SDL_GetModState();
00710 #if SDL_VERSION_ATLEAST(1, 3, 0)
00711 keys = SDL_CALL SDL_GetKeyboardState(&numkeys);
00712 #else
00713 keys = SDL_CALL SDL_GetKeyState(&numkeys);
00714 #endif
00715 #if defined(_DEBUG)
00716 if (_shift_pressed)
00717 #else
00718
00719
00720 #if SDL_VERSION_ATLEAST(1, 3, 0)
00721 if (keys[SDL_SCANCODE_TAB] && (mod & KMOD_ALT) == 0)
00722 #else
00723 if (keys[SDLK_TAB] && (mod & KMOD_ALT) == 0)
00724 #endif
00725 #endif
00726 {
00727 if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
00728 } else if (_fast_forward & 2) {
00729 _fast_forward = 0;
00730 }
00731
00732 cur_ticks = SDL_CALL SDL_GetTicks();
00733 if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode) || cur_ticks < prev_cur_ticks) {
00734 _realtime_tick += cur_ticks - last_cur_ticks;
00735 last_cur_ticks = cur_ticks;
00736 next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00737
00738 bool old_ctrl_pressed = _ctrl_pressed;
00739
00740 _ctrl_pressed = !!(mod & KMOD_CTRL);
00741 _shift_pressed = !!(mod & KMOD_SHIFT);
00742
00743
00744 _dirkeys =
00745 #if SDL_VERSION_ATLEAST(1, 3, 0)
00746 (keys[SDL_SCANCODE_LEFT] ? 1 : 0) |
00747 (keys[SDL_SCANCODE_UP] ? 2 : 0) |
00748 (keys[SDL_SCANCODE_RIGHT] ? 4 : 0) |
00749 (keys[SDL_SCANCODE_DOWN] ? 8 : 0);
00750 #else
00751 (keys[SDLK_LEFT] ? 1 : 0) |
00752 (keys[SDLK_UP] ? 2 : 0) |
00753 (keys[SDLK_RIGHT] ? 4 : 0) |
00754 (keys[SDLK_DOWN] ? 8 : 0);
00755 #endif
00756 if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
00757
00758
00759
00760 if (_draw_threaded) _draw_mutex->EndCritical();
00761
00762 GameLoop();
00763
00764 if (_draw_threaded) _draw_mutex->BeginCritical();
00765
00766 UpdateWindows();
00767 _local_palette = _cur_palette;
00768 } else {
00769
00770 if (_draw_threaded) _draw_mutex->EndCritical();
00771 CSleep(1);
00772 if (_draw_threaded) _draw_mutex->BeginCritical();
00773
00774 NetworkDrawChatMessage();
00775 DrawMouseCursor();
00776 }
00777
00778
00779 if (_draw_threaded && !HasModalProgress()) {
00780 _draw_mutex->SendSignal();
00781 } else {
00782
00783 CheckPaletteAnim();
00784 DrawSurfaceToScreen();
00785 }
00786 }
00787
00788 if (_draw_threaded) {
00789 _draw_continue = false;
00790
00791
00792 _draw_mutex->SendSignal();
00793 _draw_mutex->EndCritical();
00794 _draw_thread->Join();
00795
00796 delete _draw_mutex;
00797 delete _draw_thread;
00798 }
00799 }
00800
00801 bool VideoDriver_SDL::ChangeResolution(int w, int h)
00802 {
00803 if (_draw_threaded) _draw_mutex->BeginCritical();
00804 bool ret = CreateMainSurface(w, h);
00805 if (_draw_threaded) _draw_mutex->EndCritical();
00806 return ret;
00807 }
00808
00809 bool VideoDriver_SDL::ToggleFullscreen(bool fullscreen)
00810 {
00811 _fullscreen = fullscreen;
00812 GetVideoModes();
00813 if (_num_resolutions == 0 || !CreateMainSurface(_cur_resolution.width, _cur_resolution.height)) {
00814
00815 _fullscreen ^= true;
00816 return false;
00817 }
00818 return true;
00819 }
00820
00821 bool VideoDriver_SDL::AfterBlitterChange()
00822 {
00823 return this->ChangeResolution(_screen.width, _screen.height);
00824 }
00825
00826 #endif