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00017 #ifdef WITH_ALLEGRO
00018
00019 #include "../stdafx.h"
00020 #include "../openttd.h"
00021 #include "../gfx_func.h"
00022 #include "../rev.h"
00023 #include "../blitter/factory.hpp"
00024 #include "../network/network.h"
00025 #include "../core/random_func.hpp"
00026 #include "../core/math_func.hpp"
00027 #include "allegro_v.h"
00028 #include <allegro.h>
00029
00030 #ifdef _DEBUG
00031
00032
00033 #include <signal.h>
00034 #endif
00035
00036 static FVideoDriver_Allegro iFVideoDriver_Allegro;
00037
00038 static BITMAP *_allegro_screen;
00039
00040 #define MAX_DIRTY_RECTS 100
00041 static PointDimension _dirty_rects[MAX_DIRTY_RECTS];
00042 static int _num_dirty_rects;
00043
00044 void VideoDriver_Allegro::MakeDirty(int left, int top, int width, int height)
00045 {
00046 if (_num_dirty_rects < MAX_DIRTY_RECTS) {
00047 _dirty_rects[_num_dirty_rects].x = left;
00048 _dirty_rects[_num_dirty_rects].y = top;
00049 _dirty_rects[_num_dirty_rects].width = width;
00050 _dirty_rects[_num_dirty_rects].height = height;
00051 }
00052 _num_dirty_rects++;
00053 }
00054
00055 static void DrawSurfaceToScreen()
00056 {
00057 int n = _num_dirty_rects;
00058 if (n == 0) return;
00059
00060 _num_dirty_rects = 0;
00061 if (n > MAX_DIRTY_RECTS) {
00062 blit(_allegro_screen, screen, 0, 0, 0, 0, _allegro_screen->w, _allegro_screen->h);
00063 return;
00064 }
00065
00066 for (int i = 0; i < n; i++) {
00067 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);
00068 }
00069 }
00070
00071
00072 static void UpdatePalette(uint start, uint count)
00073 {
00074 static PALETTE pal;
00075
00076 uint end = start + count;
00077 for (uint i = start; i != end; i++) {
00078 pal[i].r = _cur_palette[i].r / 4;
00079 pal[i].g = _cur_palette[i].g / 4;
00080 pal[i].b = _cur_palette[i].b / 4;
00081 pal[i].filler = 0;
00082 }
00083
00084 set_palette_range(pal, start, end - 1, 1);
00085 }
00086
00087 static void InitPalette()
00088 {
00089 UpdatePalette(0, 256);
00090 }
00091
00092 static void CheckPaletteAnim()
00093 {
00094 if (_pal_count_dirty != 0) {
00095 Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00096
00097 switch (blitter->UsePaletteAnimation()) {
00098 case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00099 UpdatePalette(_pal_first_dirty, _pal_count_dirty);
00100 break;
00101
00102 case Blitter::PALETTE_ANIMATION_BLITTER:
00103 blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
00104 break;
00105
00106 case Blitter::PALETTE_ANIMATION_NONE:
00107 break;
00108
00109 default:
00110 NOT_REACHED();
00111 }
00112 _pal_count_dirty = 0;
00113 }
00114 }
00115
00116 static const Dimension default_resolutions[] = {
00117 { 640, 480},
00118 { 800, 600},
00119 {1024, 768},
00120 {1152, 864},
00121 {1280, 800},
00122 {1280, 960},
00123 {1280, 1024},
00124 {1400, 1050},
00125 {1600, 1200},
00126 {1680, 1050},
00127 {1920, 1200}
00128 };
00129
00130 static void GetVideoModes()
00131 {
00132
00133
00134 set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
00135
00136 GFX_MODE_LIST *mode_list = get_gfx_mode_list(gfx_driver->id);
00137 if (mode_list == NULL) {
00138 memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
00139 _num_resolutions = lengthof(default_resolutions);
00140 return;
00141 }
00142
00143 GFX_MODE *modes = mode_list->mode;
00144
00145 int n = 0;
00146 for (int i = 0; modes[i].bpp != 0; i++) {
00147 uint w = modes[i].width;
00148 uint h = modes[i].height;
00149 if (w >= 640 && h >= 480) {
00150 int j;
00151 for (j = 0; j < n; j++) {
00152 if (_resolutions[j].width == w && _resolutions[j].height == h) break;
00153 }
00154
00155 if (j == n) {
00156 _resolutions[j].width = w;
00157 _resolutions[j].height = h;
00158 if (++n == lengthof(_resolutions)) break;
00159 }
00160 }
00161 }
00162 _num_resolutions = n;
00163 SortResolutions(_num_resolutions);
00164
00165 destroy_gfx_mode_list(mode_list);
00166 }
00167
00168 static void GetAvailableVideoMode(uint *w, uint *h)
00169 {
00170
00171 if (_num_resolutions == 0) return;
00172
00173
00174 for (int i = 0; i != _num_resolutions; i++) {
00175 if (*w == _resolutions[i].width && *h == _resolutions[i].height) return;
00176 }
00177
00178
00179 int best = 0;
00180 uint delta = Delta(_resolutions[0].width, *w) * Delta(_resolutions[0].height, *h);
00181 for (int i = 1; i != _num_resolutions; ++i) {
00182 uint newdelta = Delta(_resolutions[i].width, *w) * Delta(_resolutions[i].height, *h);
00183 if (newdelta < delta) {
00184 best = i;
00185 delta = newdelta;
00186 }
00187 }
00188 *w = _resolutions[best].width;
00189 *h = _resolutions[best].height;
00190 }
00191
00192 static bool CreateMainSurface(uint w, uint h)
00193 {
00194 int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00195 if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
00196 set_color_depth(bpp);
00197
00198 GetAvailableVideoMode(&w, &h);
00199 if (set_gfx_mode(_fullscreen ? GFX_AUTODETECT_FULLSCREEN : GFX_AUTODETECT_WINDOWED, w, h, 0, 0) != 0) {
00200 DEBUG(driver, 0, "Allegro: Couldn't allocate a window to draw on '%s'", allegro_error);
00201 return false;
00202 }
00203
00204
00205
00206 _allegro_screen = create_bitmap_ex(bpp, screen->cr - screen->cl, screen->cb - screen->ct);
00207 _screen.width = _allegro_screen->w;
00208 _screen.height = _allegro_screen->h;
00209 _screen.pitch = ((byte*)screen->line[1] - (byte*)screen->line[0]) / (bpp / 8);
00210 _screen.dst_ptr = _allegro_screen->line[0];
00211
00212
00213 memset(_screen.dst_ptr, 0, _screen.height * _screen.pitch);
00214
00215
00216 poll_mouse();
00217 _cursor.pos.x = mouse_x;
00218 _cursor.pos.y = mouse_y;
00219
00220 BlitterFactoryBase::GetCurrentBlitter()->PostResize();
00221
00222 InitPalette();
00223
00224 char caption[32];
00225 snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
00226 set_window_title(caption);
00227
00228 GameSizeChanged();
00229
00230 return true;
00231 }
00232
00233 struct VkMapping {
00234 uint16 vk_from;
00235 byte vk_count;
00236 byte map_to;
00237 };
00238
00239 #define AS(x, z) {x, 0, z}
00240 #define AM(x, y, z, w) {x, y - x, z}
00241
00242 static const VkMapping _vk_mapping[] = {
00243
00244 AM(KEY_PGUP, KEY_PGDN, WKC_PAGEUP, WKC_PAGEDOWN),
00245 AS(KEY_UP, WKC_UP),
00246 AS(KEY_DOWN, WKC_DOWN),
00247 AS(KEY_LEFT, WKC_LEFT),
00248 AS(KEY_RIGHT, WKC_RIGHT),
00249
00250 AS(KEY_HOME, WKC_HOME),
00251 AS(KEY_END, WKC_END),
00252
00253 AS(KEY_INSERT, WKC_INSERT),
00254 AS(KEY_DEL, WKC_DELETE),
00255
00256
00257 AM(KEY_A, KEY_Z, 'A', 'Z'),
00258 AM(KEY_0, KEY_9, '0', '9'),
00259
00260 AS(KEY_ESC, WKC_ESC),
00261 AS(KEY_PAUSE, WKC_PAUSE),
00262 AS(KEY_BACKSPACE, WKC_BACKSPACE),
00263
00264 AS(KEY_SPACE, WKC_SPACE),
00265 AS(KEY_ENTER, WKC_RETURN),
00266 AS(KEY_TAB, WKC_TAB),
00267
00268
00269 AM(KEY_F1, KEY_F12, WKC_F1, WKC_F12),
00270
00271
00272 AM(KEY_0_PAD, KEY_9_PAD, '0', '9'),
00273 AS(KEY_SLASH_PAD, WKC_NUM_DIV),
00274 AS(KEY_ASTERISK, WKC_NUM_MUL),
00275 AS(KEY_MINUS_PAD, WKC_NUM_MINUS),
00276 AS(KEY_PLUS_PAD, WKC_NUM_PLUS),
00277 AS(KEY_ENTER_PAD, WKC_NUM_ENTER),
00278 AS(KEY_DEL_PAD, WKC_DELETE),
00279
00280
00281 AS(KEY_SLASH, WKC_SLASH),
00282 AS(KEY_SEMICOLON, WKC_SEMICOLON),
00283 AS(KEY_EQUALS, WKC_EQUALS),
00284 AS(KEY_OPENBRACE, WKC_L_BRACKET),
00285 AS(KEY_BACKSLASH, WKC_BACKSLASH),
00286 AS(KEY_CLOSEBRACE, WKC_R_BRACKET),
00287
00288 AS(KEY_QUOTE, WKC_SINGLEQUOTE),
00289 AS(KEY_COMMA, WKC_COMMA),
00290 AS(KEY_MINUS, WKC_MINUS),
00291 AS(KEY_STOP, WKC_PERIOD),
00292 AS(KEY_TILDE, WKC_BACKQUOTE),
00293 };
00294
00295 static uint32 ConvertAllegroKeyIntoMy()
00296 {
00297 int scancode;
00298 int unicode = ureadkey(&scancode);
00299
00300 const VkMapping *map;
00301 uint key = 0;
00302
00303 for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
00304 if ((uint)(scancode - map->vk_from) <= map->vk_count) {
00305 key = scancode - map->vk_from + map->map_to;
00306 break;
00307 }
00308 }
00309
00310 if (key_shifts & KB_SHIFT_FLAG) key |= WKC_SHIFT;
00311 if (key_shifts & KB_CTRL_FLAG) key |= WKC_CTRL;
00312 if (key_shifts & KB_ALT_FLAG) key |= WKC_ALT;
00313 #if 0
00314 DEBUG(driver, 0, "Scancode character pressed %u", scancode);
00315 DEBUG(driver, 0, "Unicode character pressed %u", unicode);
00316 #endif
00317 return (key << 16) + unicode;
00318 }
00319
00320 static const uint LEFT_BUTTON = 0;
00321 static const uint RIGHT_BUTTON = 1;
00322
00323 static void PollEvent()
00324 {
00325 poll_mouse();
00326
00327 bool mouse_action = false;
00328
00329
00330 static int prev_button_state;
00331 if (prev_button_state != mouse_b) {
00332 uint diff = prev_button_state ^ mouse_b;
00333 while (diff != 0) {
00334 uint button = FindFirstBit(diff);
00335 ClrBit(diff, button);
00336 if (HasBit(mouse_b, button)) {
00337
00338 if (_rightclick_emulate && (key_shifts & KB_CTRL_FLAG)) {
00339 button = RIGHT_BUTTON;
00340 ClrBit(diff, RIGHT_BUTTON);
00341 }
00342 switch (button) {
00343 case LEFT_BUTTON:
00344 _left_button_down = true;
00345 break;
00346
00347 case RIGHT_BUTTON:
00348 _right_button_down = true;
00349 _right_button_clicked = true;
00350 break;
00351
00352 default:
00353
00354 break;
00355 }
00356 } else {
00357
00358 if (_rightclick_emulate) {
00359 _right_button_down = false;
00360 _left_button_down = false;
00361 _left_button_clicked = false;
00362 } else if (button == LEFT_BUTTON) {
00363 _left_button_down = false;
00364 _left_button_clicked = false;
00365 } else if (button == RIGHT_BUTTON) {
00366 _right_button_down = false;
00367 }
00368 }
00369 }
00370 prev_button_state = mouse_b;
00371 mouse_action = true;
00372 }
00373
00374
00375 int dx = mouse_x - _cursor.pos.x;
00376 int dy = mouse_y - _cursor.pos.y;
00377 if (dx != 0 || dy != 0) {
00378 if (_cursor.fix_at) {
00379 _cursor.delta.x = dx;
00380 _cursor.delta.y = dy;
00381 position_mouse(_cursor.pos.x, _cursor.pos.y);
00382 } else {
00383 _cursor.delta.x = dx;
00384 _cursor.delta.y = dy;
00385 _cursor.pos.x = mouse_x;
00386 _cursor.pos.y = mouse_y;
00387 _cursor.dirty = true;
00388 }
00389 mouse_action = true;
00390 }
00391
00392 static int prev_mouse_z = 0;
00393 if (prev_mouse_z != mouse_z) {
00394 _cursor.wheel = (prev_mouse_z - mouse_z) < 0 ? -1 : 1;
00395 prev_mouse_z = mouse_z;
00396 mouse_action = true;
00397 }
00398
00399 if (mouse_action) HandleMouseEvents();
00400
00401 poll_keyboard();
00402 if ((key_shifts & KB_ALT_FLAG) && (key[KEY_ENTER] || key[KEY_F])) {
00403 ToggleFullScreen(!_fullscreen);
00404 } else if (keypressed()) {
00405 HandleKeypress(ConvertAllegroKeyIntoMy());
00406 }
00407 }
00408
00413 int _allegro_instance_count = 0;
00414
00415 const char *VideoDriver_Allegro::Start(const char * const *parm)
00416 {
00417 if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) {
00418 DEBUG(driver, 0, "allegro: install_allegro failed '%s'", allegro_error);
00419 return "Failed to set up Allegro";
00420 }
00421 _allegro_instance_count++;
00422
00423 install_timer();
00424 install_mouse();
00425 install_keyboard();
00426
00427 #if defined _DEBUG
00428
00429
00430 signal(SIGABRT, NULL);
00431 signal(SIGSEGV, NULL);
00432 #endif
00433
00434 #if defined(DOS)
00435
00436
00437 _fullscreen = true;
00438 #endif
00439
00440 GetVideoModes();
00441 if (!CreateMainSurface(_cur_resolution.width, _cur_resolution.height)) {
00442 return "Failed to set up Allegro video";
00443 }
00444 MarkWholeScreenDirty();
00445 set_close_button_callback(HandleExitGameRequest);
00446
00447 return NULL;
00448 }
00449
00450 void VideoDriver_Allegro::Stop()
00451 {
00452 if (--_allegro_instance_count == 0) allegro_exit();
00453 }
00454
00455 #if defined(UNIX) || defined(__OS2__) || defined(PSP) || defined(DOS)
00456 # include <sys/time.h>
00457
00458 static uint32 GetTime()
00459 {
00460 struct timeval tim;
00461
00462 gettimeofday(&tim, NULL);
00463 return tim.tv_usec / 1000 + tim.tv_sec * 1000;
00464 }
00465 #else
00466 static uint32 GetTime()
00467 {
00468 return GetTickCount();
00469 }
00470 #endif
00471
00472
00473 void VideoDriver_Allegro::MainLoop()
00474 {
00475 uint32 cur_ticks = GetTime();
00476 uint32 last_cur_ticks = cur_ticks;
00477 uint32 next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00478 uint32 pal_tick = 0;
00479
00480 for (;;) {
00481 uint32 prev_cur_ticks = cur_ticks;
00482 InteractiveRandom();
00483
00484 PollEvent();
00485 if (_exit_game) return;
00486
00487 #if defined(_DEBUG)
00488 if (_shift_pressed)
00489 #else
00490
00491
00492 if (key[KEY_TAB] && (key_shifts & KB_ALT_FLAG) == 0)
00493 #endif
00494 {
00495 if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
00496 } else if (_fast_forward & 2) {
00497 _fast_forward = 0;
00498 }
00499
00500 cur_ticks = GetTime();
00501 if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode) || cur_ticks < prev_cur_ticks) {
00502 _realtime_tick += cur_ticks - last_cur_ticks;
00503 last_cur_ticks = cur_ticks;
00504 next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00505
00506 bool old_ctrl_pressed = _ctrl_pressed;
00507
00508 _ctrl_pressed = !!(key_shifts & KB_CTRL_FLAG);
00509 _shift_pressed = !!(key_shifts & KB_SHIFT_FLAG);
00510
00511
00512 _dirkeys =
00513 (key[KEY_LEFT] ? 1 : 0) |
00514 (key[KEY_UP] ? 2 : 0) |
00515 (key[KEY_RIGHT] ? 4 : 0) |
00516 (key[KEY_DOWN] ? 8 : 0);
00517
00518 if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
00519
00520 GameLoop();
00521
00522 UpdateWindows();
00523 if (++pal_tick > 4) {
00524 CheckPaletteAnim();
00525 pal_tick = 1;
00526 }
00527 DrawSurfaceToScreen();
00528 } else {
00529 CSleep(1);
00530 NetworkDrawChatMessage();
00531 DrawMouseCursor();
00532 DrawSurfaceToScreen();
00533 }
00534 }
00535 }
00536
00537 bool VideoDriver_Allegro::ChangeResolution(int w, int h)
00538 {
00539 return CreateMainSurface(w, h);
00540 }
00541
00542 bool VideoDriver_Allegro::ToggleFullscreen(bool fullscreen)
00543 {
00544 #ifdef DOS
00545 return false;
00546 #else
00547 _fullscreen = fullscreen;
00548 GetVideoModes();
00549 if (_num_resolutions == 0 || !this->ChangeResolution(_cur_resolution.width, _cur_resolution.height)) {
00550
00551 _fullscreen ^= true;
00552 return false;
00553 }
00554 return true;
00555 #endif
00556 }
00557
00558 #endif