win32_v.cpp

Go to the documentation of this file.
00001 /* $Id: win32_v.cpp 18031 2009-11-09 16:07:03Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "../stdafx.h"
00013 #include "../openttd.h"
00014 #include "../gfx_func.h"
00015 #include "../variables.h"
00016 #include "../os/windows/win32.h"
00017 #include "../rev.h"
00018 #include "../blitter/factory.hpp"
00019 #include "../network/network.h"
00020 #include "../core/math_func.hpp"
00021 #include "../core/random_func.hpp"
00022 #include "../functions.h"
00023 #include "../texteff.hpp"
00024 #include "win32_v.h"
00025 #include <windows.h>
00026 
00027 static struct {
00028   HWND main_wnd;
00029   HBITMAP dib_sect;
00030   void *buffer_bits;
00031   HPALETTE gdi_palette;
00032   int width;
00033   int height;
00034   int width_org;
00035   int height_org;
00036   bool fullscreen;
00037   bool has_focus;
00038   bool running;
00039 } _wnd;
00040 
00041 bool _force_full_redraw;
00042 bool _window_maximize;
00043 uint _display_hz;
00044 uint _fullscreen_bpp;
00045 static Dimension _bck_resolution;
00046 #if !defined(UNICODE)
00047 uint _codepage;
00048 #endif
00049 
00050 static void MakePalette()
00051 {
00052   LOGPALETTE *pal;
00053   uint i;
00054 
00055   pal = (LOGPALETTE*)alloca(sizeof(LOGPALETTE) + (256 - 1) * sizeof(PALETTEENTRY));
00056 
00057   pal->palVersion = 0x300;
00058   pal->palNumEntries = 256;
00059 
00060   for (i = 0; i != 256; i++) {
00061     pal->palPalEntry[i].peRed   = _cur_palette[i].r;
00062     pal->palPalEntry[i].peGreen = _cur_palette[i].g;
00063     pal->palPalEntry[i].peBlue  = _cur_palette[i].b;
00064     pal->palPalEntry[i].peFlags = 0;
00065 
00066   }
00067   _wnd.gdi_palette = CreatePalette(pal);
00068   if (_wnd.gdi_palette == NULL) usererror("CreatePalette failed!\n");
00069 }
00070 
00071 static void UpdatePalette(HDC dc, uint start, uint count)
00072 {
00073   RGBQUAD rgb[256];
00074   uint i;
00075 
00076   for (i = 0; i != count; i++) {
00077     rgb[i].rgbRed   = _cur_palette[start + i].r;
00078     rgb[i].rgbGreen = _cur_palette[start + i].g;
00079     rgb[i].rgbBlue  = _cur_palette[start + i].b;
00080     rgb[i].rgbReserved = 0;
00081   }
00082 
00083   SetDIBColorTable(dc, start, count, rgb);
00084 }
00085 
00086 struct VkMapping {
00087   byte vk_from;
00088   byte vk_count;
00089   byte map_to;
00090 };
00091 
00092 #define AS(x, z) {x, 0, z}
00093 #define AM(x, y, z, w) {x, y - x, z}
00094 
00095 static const VkMapping _vk_mapping[] = {
00096   /* Pageup stuff + up/down */
00097   AM(VK_PRIOR, VK_DOWN, WKC_PAGEUP, WKC_DOWN),
00098   /* Map letters & digits */
00099   AM('A', 'Z', 'A', 'Z'),
00100   AM('0', '9', '0', '9'),
00101 
00102   AS(VK_ESCAPE,   WKC_ESC),
00103   AS(VK_PAUSE,    WKC_PAUSE),
00104   AS(VK_BACK,     WKC_BACKSPACE),
00105   AM(VK_INSERT,   VK_DELETE, WKC_INSERT, WKC_DELETE),
00106 
00107   AS(VK_SPACE,    WKC_SPACE),
00108   AS(VK_RETURN,   WKC_RETURN),
00109   AS(VK_TAB,      WKC_TAB),
00110 
00111   /* Function keys */
00112   AM(VK_F1, VK_F12, WKC_F1, WKC_F12),
00113 
00114   /* Numeric part */
00115   AM(VK_NUMPAD0, VK_NUMPAD9, '0', '9'),
00116   AS(VK_DIVIDE,   WKC_NUM_DIV),
00117   AS(VK_MULTIPLY, WKC_NUM_MUL),
00118   AS(VK_SUBTRACT, WKC_NUM_MINUS),
00119   AS(VK_ADD,      WKC_NUM_PLUS),
00120   AS(VK_DECIMAL,  WKC_NUM_DECIMAL),
00121 
00122   /* Other non-letter keys */
00123   AS(0xBF,  WKC_SLASH),
00124   AS(0xBA,  WKC_SEMICOLON),
00125   AS(0xBB,  WKC_EQUALS),
00126   AS(0xDB,  WKC_L_BRACKET),
00127   AS(0xDC,  WKC_BACKSLASH),
00128   AS(0xDD,  WKC_R_BRACKET),
00129 
00130   AS(0xDE,  WKC_SINGLEQUOTE),
00131   AS(0xBC,  WKC_COMMA),
00132   AS(0xBD,  WKC_MINUS),
00133   AS(0xBE,  WKC_PERIOD)
00134 };
00135 
00136 static uint MapWindowsKey(uint sym)
00137 {
00138   const VkMapping *map;
00139   uint key = 0;
00140 
00141   for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
00142     if ((uint)(sym - map->vk_from) <= map->vk_count) {
00143       key = sym - map->vk_from + map->map_to;
00144       break;
00145     }
00146   }
00147 
00148   if (GetAsyncKeyState(VK_SHIFT)   < 0) key |= WKC_SHIFT;
00149   if (GetAsyncKeyState(VK_CONTROL) < 0) key |= WKC_CTRL;
00150   if (GetAsyncKeyState(VK_MENU)    < 0) key |= WKC_ALT;
00151   return key;
00152 }
00153 
00154 static bool AllocateDibSection(int w, int h);
00155 
00156 static void ClientSizeChanged(int w, int h)
00157 {
00158   /* allocate new dib section of the new size */
00159   if (AllocateDibSection(w, h)) {
00160     /* mark all palette colors dirty */
00161     _pal_first_dirty = 0;
00162     _pal_count_dirty = 256;
00163     GameSizeChanged();
00164 
00165     /* redraw screen */
00166     if (_wnd.running) {
00167       _screen.dst_ptr = _wnd.buffer_bits;
00168       UpdateWindows();
00169     }
00170   }
00171 }
00172 
00173 #ifdef _DEBUG
00174 /* Keep this function here..
00175  * It allows you to redraw the screen from within the MSVC debugger */
00176 int RedrawScreenDebug()
00177 {
00178   HDC dc, dc2;
00179   static int _fooctr;
00180   HBITMAP old_bmp;
00181   HPALETTE old_palette;
00182 
00183   _screen.dst_ptr = _wnd.buffer_bits;
00184   UpdateWindows();
00185 
00186   dc = GetDC(_wnd.main_wnd);
00187   dc2 = CreateCompatibleDC(dc);
00188 
00189   old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
00190   old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
00191   BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
00192   SelectPalette(dc, old_palette, TRUE);
00193   SelectObject(dc2, old_bmp);
00194   DeleteDC(dc2);
00195   ReleaseDC(_wnd.main_wnd, dc);
00196 
00197   return _fooctr++;
00198 }
00199 #endif
00200 
00201 /* Windows 95 will not have a WM_MOUSELEAVE message, so define it if needed */
00202 #if !defined(WM_MOUSELEAVE)
00203 #define WM_MOUSELEAVE 0x02A3
00204 #endif
00205 #define TID_POLLMOUSE 1
00206 #define MOUSE_POLL_DELAY 75
00207 
00208 static void CALLBACK TrackMouseTimerProc(HWND hwnd, UINT msg, UINT event, DWORD time)
00209 {
00210   RECT rc;
00211   POINT pt;
00212 
00213   /* Get the rectangle of our window and translate it to screen coordinates.
00214    * Compare this with the current screen coordinates of the mouse and if it
00215    * falls outside of the area or our window we have left the window. */
00216   GetClientRect(hwnd, &rc);
00217   MapWindowPoints(hwnd, HWND_DESKTOP, (LPPOINT)(LPRECT)&rc, 2);
00218   GetCursorPos(&pt);
00219 
00220   if (!PtInRect(&rc, pt) || (WindowFromPoint(pt) != hwnd)) {
00221     KillTimer(hwnd, event);
00222     PostMessage(hwnd, WM_MOUSELEAVE, 0, 0L);
00223   }
00224 }
00225 
00226 static bool MakeWindow(bool full_screen)
00227 {
00228   _fullscreen = full_screen;
00229 
00230   /* recreate window? */
00231   if ((full_screen || _wnd.fullscreen) && _wnd.main_wnd) {
00232     DestroyWindow(_wnd.main_wnd);
00233     _wnd.main_wnd = 0;
00234   }
00235 
00236 #if defined(WINCE)
00237   /* WinCE is always fullscreen */
00238 #else
00239   if (full_screen) {
00240     DEVMODE settings;
00241 
00242     /* Make sure we are always at least the screen-depth of the blitter */
00243     if (_fullscreen_bpp < BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth()) _fullscreen_bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00244 
00245     memset(&settings, 0, sizeof(settings));
00246     settings.dmSize = sizeof(settings);
00247     settings.dmFields =
00248       (_fullscreen_bpp != 0 ? DM_BITSPERPEL : 0) |
00249       DM_PELSWIDTH |
00250       DM_PELSHEIGHT |
00251       (_display_hz != 0 ? DM_DISPLAYFREQUENCY : 0);
00252     settings.dmBitsPerPel = _fullscreen_bpp;
00253     settings.dmPelsWidth  = _wnd.width_org;
00254     settings.dmPelsHeight = _wnd.height_org;
00255     settings.dmDisplayFrequency = _display_hz;
00256 
00257     if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
00258       MakeWindow(false);  // don't care about the result
00259       return false;  // the request failed
00260     }
00261   } else if (_wnd.fullscreen) {
00262     /* restore display? */
00263     ChangeDisplaySettings(NULL, 0);
00264   }
00265 #endif
00266 
00267   {
00268     RECT r;
00269     DWORD style, showstyle;
00270     int x, y, w, h;
00271 
00272     showstyle = SW_SHOWNORMAL;
00273     _wnd.fullscreen = full_screen;
00274     if (_wnd.fullscreen) {
00275       style = WS_POPUP;
00276       SetRect(&r, 0, 0, _wnd.width_org, _wnd.height_org);
00277     } else {
00278       style = WS_OVERLAPPEDWINDOW;
00279       /* On window creation, check if we were in maximize mode before */
00280       if (_window_maximize) showstyle = SW_SHOWMAXIMIZED;
00281       SetRect(&r, 0, 0, _wnd.width, _wnd.height);
00282     }
00283 
00284 #if !defined(WINCE)
00285     AdjustWindowRect(&r, style, FALSE);
00286 #endif
00287     w = r.right - r.left;
00288     h = r.bottom - r.top;
00289     x = (GetSystemMetrics(SM_CXSCREEN) - w) / 2;
00290     y = (GetSystemMetrics(SM_CYSCREEN) - h) / 2;
00291 
00292     if (_wnd.main_wnd) {
00293       ShowWindow(_wnd.main_wnd, SW_SHOWNORMAL); // remove maximize-flag
00294       SetWindowPos(_wnd.main_wnd, 0, x, y, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER);
00295     } else {
00296       TCHAR Windowtitle[50];
00297 
00298       _sntprintf(Windowtitle, lengthof(Windowtitle), _T("OpenTTD %s"), MB_TO_WIDE(_openttd_revision));
00299 
00300       _wnd.main_wnd = CreateWindow(_T("OTTD"), Windowtitle, style, x, y, w, h, 0, 0, GetModuleHandle(NULL), 0);
00301       if (_wnd.main_wnd == NULL) usererror("CreateWindow failed");
00302       ShowWindow(_wnd.main_wnd, showstyle);
00303     }
00304   }
00305   GameSizeChanged(); // invalidate all windows, force redraw
00306   return true; // the request succedded
00307 }
00308 
00309 static LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
00310 {
00311   static uint32 keycode = 0;
00312   static bool console = false;
00313 
00314   switch (msg) {
00315     case WM_CREATE:
00316       SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
00317       break;
00318 
00319     case WM_PAINT: {
00320       PAINTSTRUCT ps;
00321       HDC dc, dc2;
00322       HBITMAP old_bmp;
00323       HPALETTE old_palette;
00324 
00325       BeginPaint(hwnd, &ps);
00326       dc = ps.hdc;
00327       dc2 = CreateCompatibleDC(dc);
00328       old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
00329       old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
00330 
00331       if (_pal_count_dirty != 0) {
00332         Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00333 
00334         switch (blitter->UsePaletteAnimation()) {
00335           case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00336             UpdatePalette(dc2, _pal_first_dirty, _pal_count_dirty);
00337             break;
00338 
00339           case Blitter::PALETTE_ANIMATION_BLITTER:
00340             blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
00341             break;
00342 
00343           case Blitter::PALETTE_ANIMATION_NONE:
00344             break;
00345 
00346           default:
00347             NOT_REACHED();
00348         }
00349         _pal_count_dirty = 0;
00350       }
00351 
00352       BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
00353       SelectPalette(dc, old_palette, TRUE);
00354       SelectObject(dc2, old_bmp);
00355       DeleteDC(dc2);
00356       EndPaint(hwnd, &ps);
00357       return 0;
00358     }
00359 
00360     case WM_PALETTECHANGED:
00361       if ((HWND)wParam == hwnd) return 0;
00362       /* FALLTHROUGH */
00363 
00364     case WM_QUERYNEWPALETTE: {
00365       HDC hDC = GetWindowDC(hwnd);
00366       HPALETTE hOldPalette = SelectPalette(hDC, _wnd.gdi_palette, FALSE);
00367       UINT nChanged = RealizePalette(hDC);
00368 
00369       SelectPalette(hDC, hOldPalette, TRUE);
00370       ReleaseDC(hwnd, hDC);
00371       if (nChanged) InvalidateRect(hwnd, NULL, FALSE);
00372       return 0;
00373     }
00374 
00375     case WM_CLOSE:
00376       HandleExitGameRequest();
00377       return 0;
00378 
00379     case WM_DESTROY:
00380       if (_window_maximize) _cur_resolution = _bck_resolution;
00381       return 0;
00382 
00383     case WM_LBUTTONDOWN:
00384       SetCapture(hwnd);
00385       _left_button_down = true;
00386       HandleMouseEvents();
00387       return 0;
00388 
00389     case WM_LBUTTONUP:
00390       ReleaseCapture();
00391       _left_button_down = false;
00392       _left_button_clicked = false;
00393       HandleMouseEvents();
00394       return 0;
00395 
00396     case WM_RBUTTONDOWN:
00397       SetCapture(hwnd);
00398       _right_button_down = true;
00399       _right_button_clicked = true;
00400       HandleMouseEvents();
00401       return 0;
00402 
00403     case WM_RBUTTONUP:
00404       ReleaseCapture();
00405       _right_button_down = false;
00406       HandleMouseEvents();
00407       return 0;
00408 
00409     case WM_MOUSELEAVE:
00410       UndrawMouseCursor();
00411       _cursor.in_window = false;
00412 
00413       if (!_left_button_down && !_right_button_down) MyShowCursor(true);
00414       HandleMouseEvents();
00415       return 0;
00416 
00417     case WM_MOUSEMOVE: {
00418       int x = (int16)LOWORD(lParam);
00419       int y = (int16)HIWORD(lParam);
00420       POINT pt;
00421 
00422       /* If the mouse was not in the window and it has moved it means it has
00423        * come into the window, so start drawing the mouse. Also start
00424        * tracking the mouse for exiting the window */
00425       if (!_cursor.in_window) {
00426         _cursor.in_window = true;
00427         SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
00428 
00429         DrawMouseCursor();
00430       }
00431 
00432       if (_cursor.fix_at) {
00433         int dx = x - _cursor.pos.x;
00434         int dy = y - _cursor.pos.y;
00435         if (dx != 0 || dy != 0) {
00436           _cursor.delta.x = dx;
00437           _cursor.delta.y = dy;
00438 
00439           pt.x = _cursor.pos.x;
00440           pt.y = _cursor.pos.y;
00441 
00442           ClientToScreen(hwnd, &pt);
00443           SetCursorPos(pt.x, pt.y);
00444         }
00445       } else {
00446         _cursor.delta.x = x - _cursor.pos.x;
00447         _cursor.delta.y = y - _cursor.pos.y;
00448         _cursor.pos.x = x;
00449         _cursor.pos.y = y;
00450         _cursor.dirty = true;
00451       }
00452       MyShowCursor(false);
00453       HandleMouseEvents();
00454       return 0;
00455     }
00456 
00457 #if !defined(UNICODE)
00458     case WM_INPUTLANGCHANGE: {
00459       TCHAR locale[6];
00460       LCID lcid = GB(lParam, 0, 16);
00461 
00462       int len = GetLocaleInfo(lcid, LOCALE_IDEFAULTANSICODEPAGE, locale, lengthof(locale));
00463       if (len != 0) _codepage = _ttoi(locale);
00464       return 1;
00465     }
00466 #endif /* UNICODE */
00467 
00468     case WM_DEADCHAR:
00469       console = GB(lParam, 16, 8) == 41;
00470       return 0;
00471 
00472     case WM_CHAR: {
00473       uint scancode = GB(lParam, 16, 8);
00474       uint charcode = wParam;
00475 
00476       /* If the console key is a dead-key, we need to press it twice to get a WM_CHAR message.
00477        * But we then get two WM_CHAR messages, so ignore the first one */
00478       if (console && scancode == 41) {
00479         console = false;
00480         return 0;
00481       }
00482 
00483 #if !defined(UNICODE)
00484       wchar_t w;
00485       int len = MultiByteToWideChar(_codepage, 0, (char*)&charcode, 1, &w, 1);
00486       charcode = len == 1 ? w : 0;
00487 #endif /* UNICODE */
00488 
00489       /* No matter the keyboard layout, we will map the '~' to the console */
00490       scancode = scancode == 41 ? (int)WKC_BACKQUOTE : keycode;
00491       HandleKeypress(GB(charcode, 0, 16) | (scancode << 16));
00492       return 0;
00493     }
00494 
00495     case WM_KEYDOWN: {
00496       keycode = MapWindowsKey(wParam);
00497 
00498       /* Silently drop all messages handled by WM_CHAR. */
00499       MSG msg;
00500       if (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
00501         if (msg.message == WM_CHAR && GB(lParam, 16, 8) == GB(msg.lParam, 16, 8)) {
00502           return 0;
00503         }
00504       }
00505 
00506       HandleKeypress(0 | (keycode << 16));
00507       return 0;
00508     }
00509 
00510     case WM_SYSKEYDOWN: // user presses F10 or Alt, both activating the title-menu
00511       switch (wParam) {
00512         case VK_RETURN:
00513         case 'F': // Full Screen on ALT + ENTER/F
00514           ToggleFullScreen(!_wnd.fullscreen);
00515           return 0;
00516 
00517         case VK_MENU: // Just ALT
00518           return 0; // do nothing
00519 
00520         case VK_F10: // F10, ignore activation of menu
00521           HandleKeypress(MapWindowsKey(wParam) << 16);
00522           return 0;
00523 
00524         default: // ALT in combination with something else
00525           HandleKeypress(MapWindowsKey(wParam) << 16);
00526           break;
00527       }
00528       break;
00529 
00530     case WM_SIZE:
00531       if (wParam != SIZE_MINIMIZED) {
00532         /* Set maximized flag when we maximize (obviously), but also when we
00533          * switched to fullscreen from a maximized state */
00534         _window_maximize = (wParam == SIZE_MAXIMIZED || (_window_maximize && _fullscreen));
00535         if (_window_maximize) _bck_resolution = _cur_resolution;
00536         ClientSizeChanged(LOWORD(lParam), HIWORD(lParam));
00537       }
00538       return 0;
00539 
00540 #if !defined(WINCE)
00541     case WM_SIZING: {
00542       RECT *r = (RECT*)lParam;
00543       RECT r2;
00544       int w, h;
00545 
00546       SetRect(&r2, 0, 0, 0, 0);
00547       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
00548 
00549       w = r->right - r->left - (r2.right - r2.left);
00550       h = r->bottom - r->top - (r2.bottom - r2.top);
00551       w = max(w, 64);
00552       h = max(h, 64);
00553       SetRect(&r2, 0, 0, w, h);
00554 
00555       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
00556       w = r2.right - r2.left;
00557       h = r2.bottom - r2.top;
00558 
00559       switch (wParam) {
00560         case WMSZ_BOTTOM:
00561           r->bottom = r->top + h;
00562           break;
00563 
00564         case WMSZ_BOTTOMLEFT:
00565           r->bottom = r->top + h;
00566           r->left = r->right - w;
00567           break;
00568 
00569         case WMSZ_BOTTOMRIGHT:
00570           r->bottom = r->top + h;
00571           r->right = r->left + w;
00572           break;
00573 
00574         case WMSZ_LEFT:
00575           r->left = r->right - w;
00576           break;
00577 
00578         case WMSZ_RIGHT:
00579           r->right = r->left + w;
00580           break;
00581 
00582         case WMSZ_TOP:
00583           r->top = r->bottom - h;
00584           break;
00585 
00586         case WMSZ_TOPLEFT:
00587           r->top = r->bottom - h;
00588           r->left = r->right - w;
00589           break;
00590 
00591         case WMSZ_TOPRIGHT:
00592           r->top = r->bottom - h;
00593           r->right = r->left + w;
00594           break;
00595       }
00596       return TRUE;
00597     }
00598 #endif
00599 
00600 /* needed for wheel */
00601 #if !defined(WM_MOUSEWHEEL)
00602 # define WM_MOUSEWHEEL 0x020A
00603 #endif  /* WM_MOUSEWHEEL */
00604 #if !defined(GET_WHEEL_DELTA_WPARAM)
00605 # define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD(wparam))
00606 #endif  /* GET_WHEEL_DELTA_WPARAM */
00607 
00608     case WM_MOUSEWHEEL: {
00609       int delta = GET_WHEEL_DELTA_WPARAM(wParam);
00610 
00611       if (delta < 0) {
00612         _cursor.wheel++;
00613       } else if (delta > 0) {
00614         _cursor.wheel--;
00615       }
00616       HandleMouseEvents();
00617       return 0;
00618     }
00619 
00620     case WM_SETFOCUS:
00621       _wnd.has_focus = true;
00622       break;
00623 
00624     case WM_KILLFOCUS:
00625       _wnd.has_focus = false;
00626       break;
00627 
00628 #if !defined(WINCE)
00629     case WM_ACTIVATE: {
00630       /* Don't do anything if we are closing openttd */
00631       if (_exit_game) break;
00632 
00633       bool active = (LOWORD(wParam) != WA_INACTIVE);
00634       bool minimized = (HIWORD(wParam) != 0);
00635       if (_wnd.fullscreen) {
00636         if (active && minimized) {
00637           /* Restore the game window */
00638           ShowWindow(hwnd, SW_RESTORE);
00639           MakeWindow(true);
00640         } else if (!active && !minimized) {
00641           /* Minimise the window and restore desktop */
00642           ShowWindow(hwnd, SW_MINIMIZE);
00643           ChangeDisplaySettings(NULL, 0);
00644         }
00645       }
00646     } break;
00647 #endif
00648   }
00649 
00650   return DefWindowProc(hwnd, msg, wParam, lParam);
00651 }
00652 
00653 static void RegisterWndClass()
00654 {
00655   static bool registered = false;
00656 
00657   if (!registered) {
00658     HINSTANCE hinst = GetModuleHandle(NULL);
00659     WNDCLASS wnd = {
00660       0,
00661       WndProcGdi,
00662       0,
00663       0,
00664       hinst,
00665       LoadIcon(hinst, MAKEINTRESOURCE(100)),
00666       LoadCursor(NULL, IDC_ARROW),
00667       0,
00668       0,
00669       _T("OTTD")
00670     };
00671 
00672     registered = true;
00673     if (!RegisterClass(&wnd)) usererror("RegisterClass failed");
00674   }
00675 }
00676 
00677 static bool AllocateDibSection(int w, int h)
00678 {
00679   BITMAPINFO *bi;
00680   HDC dc;
00681   int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00682 
00683   w = max(w, 64);
00684   h = max(h, 64);
00685 
00686   if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
00687 
00688   if (w == _screen.width && h == _screen.height)
00689     return false;
00690 
00691   _screen.width = w;
00692   _screen.pitch = (bpp == 8) ? Align(w, 4) : w;
00693   _screen.height = h;
00694   bi = (BITMAPINFO*)alloca(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
00695   memset(bi, 0, sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
00696   bi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
00697 
00698   bi->bmiHeader.biWidth = _wnd.width = w;
00699   bi->bmiHeader.biHeight = -(_wnd.height = h);
00700 
00701   bi->bmiHeader.biPlanes = 1;
00702   bi->bmiHeader.biBitCount = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00703   bi->bmiHeader.biCompression = BI_RGB;
00704 
00705   if (_wnd.dib_sect) DeleteObject(_wnd.dib_sect);
00706 
00707   dc = GetDC(0);
00708   _wnd.dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID**)&_wnd.buffer_bits, NULL, 0);
00709   if (_wnd.dib_sect == NULL) usererror("CreateDIBSection failed");
00710   ReleaseDC(0, dc);
00711 
00712   return true;
00713 }
00714 
00715 static const Dimension default_resolutions[] = {
00716   {  640,  480 },
00717   {  800,  600 },
00718   { 1024,  768 },
00719   { 1152,  864 },
00720   { 1280,  800 },
00721   { 1280,  960 },
00722   { 1280, 1024 },
00723   { 1400, 1050 },
00724   { 1600, 1200 },
00725   { 1680, 1050 },
00726   { 1920, 1200 }
00727 };
00728 
00729 static void FindResolutions()
00730 {
00731   uint n = 0;
00732 #if defined(WINCE)
00733   /* EnumDisplaySettingsW is only supported in CE 4.2+
00734    * XXX -- One might argue that we assume 4.2+ on every system. Then we can use this function safely */
00735 #else
00736   uint i;
00737   DEVMODEA dm;
00738 
00739   /* XXX - EnumDisplaySettingsW crashes with unicows.dll on Windows95
00740    * Doesn't really matter since we don't pass a string anyways, but still
00741    * a letdown */
00742   for (i = 0; EnumDisplaySettingsA(NULL, i, &dm) != 0; i++) {
00743     if (dm.dmBitsPerPel == BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() &&
00744         dm.dmPelsWidth >= 640 && dm.dmPelsHeight >= 480) {
00745       uint j;
00746 
00747       for (j = 0; j < n; j++) {
00748         if (_resolutions[j].width == dm.dmPelsWidth && _resolutions[j].height == dm.dmPelsHeight) break;
00749       }
00750 
00751       /* In the previous loop we have checked already existing/added resolutions if
00752        * they are the same as the new ones. If this is not the case (j == n); we have
00753        * looped all and found none, add the new one to the list. If we have reached the
00754        * maximum amount of resolutions, then quit querying the display */
00755       if (j == n) {
00756         _resolutions[j].width  = dm.dmPelsWidth;
00757         _resolutions[j].height = dm.dmPelsHeight;
00758         if (++n == lengthof(_resolutions)) break;
00759       }
00760     }
00761   }
00762 #endif
00763 
00764   /* We have found no resolutions, show the default list */
00765   if (n == 0) {
00766     memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
00767     n = lengthof(default_resolutions);
00768   }
00769 
00770   _num_resolutions = n;
00771   SortResolutions(_num_resolutions);
00772 }
00773 
00774 static FVideoDriver_Win32 iFVideoDriver_Win32;
00775 
00776 const char *VideoDriver_Win32::Start(const char * const *parm)
00777 {
00778   memset(&_wnd, 0, sizeof(_wnd));
00779 
00780   RegisterWndClass();
00781 
00782   MakePalette();
00783 
00784   FindResolutions();
00785 
00786   DEBUG(driver, 2, "Resolution for display: %ux%u", _cur_resolution.width, _cur_resolution.height);
00787 
00788   /* fullscreen uses those */
00789   _wnd.width_org  = _cur_resolution.width;
00790   _wnd.height_org = _cur_resolution.height;
00791 
00792   AllocateDibSection(_cur_resolution.width, _cur_resolution.height);
00793   MakeWindow(_fullscreen);
00794 
00795   MarkWholeScreenDirty();
00796 
00797   return NULL;
00798 }
00799 
00800 void VideoDriver_Win32::Stop()
00801 {
00802   DeleteObject(_wnd.gdi_palette);
00803   DeleteObject(_wnd.dib_sect);
00804   DestroyWindow(_wnd.main_wnd);
00805 
00806 #if !defined(WINCE)
00807   if (_wnd.fullscreen) ChangeDisplaySettings(NULL, 0);
00808 #endif
00809   MyShowCursor(true);
00810 }
00811 
00812 void VideoDriver_Win32::MakeDirty(int left, int top, int width, int height)
00813 {
00814   RECT r = { left, top, left + width, top + height };
00815 
00816   InvalidateRect(_wnd.main_wnd, &r, FALSE);
00817 }
00818 
00819 static void CheckPaletteAnim()
00820 {
00821   if (_pal_count_dirty == 0)
00822     return;
00823   InvalidateRect(_wnd.main_wnd, NULL, FALSE);
00824 }
00825 
00826 void VideoDriver_Win32::MainLoop()
00827 {
00828   MSG mesg;
00829   uint32 cur_ticks = GetTickCount();
00830   uint32 last_cur_ticks = cur_ticks;
00831   uint32 next_tick = cur_ticks + 30;
00832 
00833   _wnd.running = true;
00834 
00835   for (;;) {
00836     uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
00837 
00838     while (PeekMessage(&mesg, NULL, 0, 0, PM_REMOVE)) {
00839       InteractiveRandom(); // randomness
00840       TranslateMessage(&mesg);
00841       DispatchMessage(&mesg);
00842     }
00843     if (_exit_game) return;
00844 
00845 #if defined(_DEBUG)
00846     if (_wnd.has_focus && GetAsyncKeyState(VK_SHIFT) < 0 &&
00847 #else
00848     /* Speed up using TAB, but disable for ALT+TAB of course */
00849     if (_wnd.has_focus && GetAsyncKeyState(VK_TAB) < 0 && GetAsyncKeyState(VK_MENU) >= 0 &&
00850 #endif
00851         !_networking && _game_mode != GM_MENU) {
00852       _fast_forward |= 2;
00853     } else if (_fast_forward & 2) {
00854       _fast_forward = 0;
00855     }
00856 
00857     cur_ticks = GetTickCount();
00858     if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode) || cur_ticks < prev_cur_ticks) {
00859       _realtime_tick += cur_ticks - last_cur_ticks;
00860       last_cur_ticks = cur_ticks;
00861       next_tick = cur_ticks + 30;
00862 
00863       bool old_ctrl_pressed = _ctrl_pressed;
00864 
00865       _ctrl_pressed = _wnd.has_focus && GetAsyncKeyState(VK_CONTROL)<0;
00866       _shift_pressed = _wnd.has_focus && GetAsyncKeyState(VK_SHIFT)<0;
00867 
00868       /* determine which directional keys are down */
00869       if (_wnd.has_focus) {
00870         _dirkeys =
00871           (GetAsyncKeyState(VK_LEFT) < 0 ? 1 : 0) +
00872           (GetAsyncKeyState(VK_UP) < 0 ? 2 : 0) +
00873           (GetAsyncKeyState(VK_RIGHT) < 0 ? 4 : 0) +
00874           (GetAsyncKeyState(VK_DOWN) < 0 ? 8 : 0);
00875       } else {
00876         _dirkeys = 0;
00877       }
00878 
00879       if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
00880 
00881       GameLoop();
00882 
00883       if (_force_full_redraw) MarkWholeScreenDirty();
00884 
00885 #if !defined(WINCE)
00886       GdiFlush();
00887 #endif
00888       _screen.dst_ptr = _wnd.buffer_bits;
00889       UpdateWindows();
00890       CheckPaletteAnim();
00891     } else {
00892       Sleep(1);
00893 #if !defined(WINCE)
00894       GdiFlush();
00895 #endif
00896       _screen.dst_ptr = _wnd.buffer_bits;
00897       NetworkDrawChatMessage();
00898       DrawMouseCursor();
00899     }
00900   }
00901 }
00902 
00903 bool VideoDriver_Win32::ChangeResolution(int w, int h)
00904 {
00905   _wnd.width = _wnd.width_org = w;
00906   _wnd.height = _wnd.height_org = h;
00907 
00908   return MakeWindow(_fullscreen); // _wnd.fullscreen screws up ingame resolution switching
00909 }
00910 
00911 bool VideoDriver_Win32::ToggleFullscreen(bool full_screen)
00912 {
00913   return MakeWindow(full_screen);
00914 }

Generated on Wed Dec 23 23:27:56 2009 for OpenTTD by  doxygen 1.5.6