# win32_v.cpp

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    00001 /* $Id: win32_v.cpp 18046 2009-11-11 21:45:50Z rubidium $ */
    00002
    00005 #include "../stdafx.h"
    00006 #include "../openttd.h"
    00007 #include "../gfx_func.h"
    00008 #include "../variables.h"
    00009 #include "../win32.h"
    00010 #include "../rev.h"
    00011 #include "../blitter/factory.hpp"
    00012 #include "../network/network.h"
    00013 #include "../core/math_func.hpp"
    00014 #include "../core/random_func.hpp"
    00015 #include "../functions.h"
    00016 #include "../texteff.hpp"
    00017 #include "win32_v.h"
    00018 #include <windows.h>
    00019
    00020 static struct {
    00021   HWND main_wnd;
    00022   HBITMAP dib_sect;
    00023   void *buffer_bits;
    00024   HPALETTE gdi_palette;
    00025   int width;
    00026   int height;
    00027   int width_org;
    00028   int height_org;
    00029   bool fullscreen;
    00030   bool has_focus;
    00031   bool running;
    00032 } _wnd;
    00033
    00034 bool _force_full_redraw;
    00035 bool _window_maximize;
    00036 uint _display_hz;
    00037 uint _fullscreen_bpp;
    00038 static Dimension _bck_resolution;
    00039 #if !defined(UNICODE)
    00040 uint _codepage;
    00041 #endif
    00042
    00043 static void MakePalette()
    00044 {
    00045   LOGPALETTE *pal;
    00046   uint i;
    00047
    00048   pal = (LOGPALETTE*)alloca(sizeof(LOGPALETTE) + (256 - 1) * sizeof(PALETTEENTRY));
    00049
    00050   pal->palVersion = 0x300;
    00051   pal->palNumEntries = 256;
    00052
    00053   for (i = 0; i != 256; i++) {
    00054     pal->palPalEntry[i].peRed   = _cur_palette[i].r;
    00055     pal->palPalEntry[i].peGreen = _cur_palette[i].g;
    00056     pal->palPalEntry[i].peBlue  = _cur_palette[i].b;
    00057     pal->palPalEntry[i].peFlags = 0;
    00058
    00059   }
    00060   _wnd.gdi_palette = CreatePalette(pal);
    00061   if (_wnd.gdi_palette == NULL) usererror("CreatePalette failed!\n");
    00062 }
    00063
    00064 static void UpdatePalette(HDC dc, uint start, uint count)
    00065 {
    00066   RGBQUAD rgb[256];
    00067   uint i;
    00068
    00069   for (i = 0; i != count; i++) {
    00070     rgb[i].rgbRed   = _cur_palette[start + i].r;
    00071     rgb[i].rgbGreen = _cur_palette[start + i].g;
    00072     rgb[i].rgbBlue  = _cur_palette[start + i].b;
    00073     rgb[i].rgbReserved = 0;
    00074   }
    00075
    00076   SetDIBColorTable(dc, start, count, rgb);
    00077 }
    00078
    00079 struct VkMapping {
    00080   byte vk_from;
    00081   byte vk_count;
    00082   byte map_to;
    00083 };
    00084
    00085 #define AS(x, z) {x, 0, z}
    00086 #define AM(x, y, z, w) {x, y - x, z}
    00087
    00088 static const VkMapping _vk_mapping[] = {
    00089   /* Pageup stuff + up/down */
    00090   AM(VK_PRIOR, VK_DOWN, WKC_PAGEUP, WKC_DOWN),
    00091   /* Map letters & digits */
    00092   AM('A', 'Z', 'A', 'Z'),
    00093   AM('0', '9', '0', '9'),
    00094
    00095   AS(VK_ESCAPE,   WKC_ESC),
    00096   AS(VK_PAUSE,    WKC_PAUSE),
    00097   AS(VK_BACK,     WKC_BACKSPACE),
    00098   AM(VK_INSERT,   VK_DELETE, WKC_INSERT, WKC_DELETE),
    00099
    00100   AS(VK_SPACE,    WKC_SPACE),
    00101   AS(VK_RETURN,   WKC_RETURN),
    00102   AS(VK_TAB,      WKC_TAB),
    00103
    00104   /* Function keys */
    00105   AM(VK_F1, VK_F12, WKC_F1, WKC_F12),
    00106
    00107   /* Numeric part */
    00108   AM(VK_NUMPAD0, VK_NUMPAD9, '0', '9'),
    00109   AS(VK_DIVIDE,   WKC_NUM_DIV),
    00110   AS(VK_MULTIPLY, WKC_NUM_MUL),
    00111   AS(VK_SUBTRACT, WKC_NUM_MINUS),
    00112   AS(VK_ADD,      WKC_NUM_PLUS),
    00113   AS(VK_DECIMAL,  WKC_NUM_DECIMAL),
    00114
    00115   /* Other non-letter keys */
    00116   AS(0xBF,  WKC_SLASH),
    00117   AS(0xBA,  WKC_SEMICOLON),
    00118   AS(0xBB,  WKC_EQUALS),
    00119   AS(0xDB,  WKC_L_BRACKET),
    00120   AS(0xDC,  WKC_BACKSLASH),
    00121   AS(0xDD,  WKC_R_BRACKET),
    00122
    00123   AS(0xDE,  WKC_SINGLEQUOTE),
    00124   AS(0xBC,  WKC_COMMA),
    00125   AS(0xBD,  WKC_MINUS),
    00126   AS(0xBE,  WKC_PERIOD)
    00127 };
    00128
    00129 static uint MapWindowsKey(uint sym)
    00130 {
    00131   const VkMapping *map;
    00132   uint key = 0;
    00133
    00134   for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
    00135     if ((uint)(sym - map->vk_from) <= map->vk_count) {
    00136       key = sym - map->vk_from + map->map_to;
    00137       break;
    00138     }
    00139   }
    00140
    00141   if (GetAsyncKeyState(VK_SHIFT)   < 0) key |= WKC_SHIFT;
    00142   if (GetAsyncKeyState(VK_CONTROL) < 0) key |= WKC_CTRL;
    00143   if (GetAsyncKeyState(VK_MENU)    < 0) key |= WKC_ALT;
    00144   return key;
    00145 }
    00146
    00147 static bool AllocateDibSection(int w, int h);
    00148
    00149 static void ClientSizeChanged(int w, int h)
    00150 {
    00151   /* allocate new dib section of the new size */
    00152   if (AllocateDibSection(w, h)) {
    00153     /* mark all palette colors dirty */
    00154     _pal_first_dirty = 0;
    00155     _pal_count_dirty = 256;
    00156     GameSizeChanged();
    00157
    00158     /* redraw screen */
    00159     if (_wnd.running) {
    00160       _screen.dst_ptr = _wnd.buffer_bits;
    00161       UpdateWindows();
    00162     }
    00163   }
    00164 }
    00165
    00166 #ifdef _DEBUG
    00167 /* Keep this function here..
    00168  * It allows you to redraw the screen from within the MSVC debugger */
    00169 int RedrawScreenDebug()
    00170 {
    00171   HDC dc, dc2;
    00172   static int _fooctr;
    00173   HBITMAP old_bmp;
    00174   HPALETTE old_palette;
    00175
    00176   _screen.dst_ptr = _wnd.buffer_bits;
    00177   UpdateWindows();
    00178
    00179   dc = GetDC(_wnd.main_wnd);
    00180   dc2 = CreateCompatibleDC(dc);
    00181
    00182   old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
    00183   old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
    00184   BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
    00185   SelectPalette(dc, old_palette, TRUE);
    00186   SelectObject(dc2, old_bmp);
    00187   DeleteDC(dc2);
    00188   ReleaseDC(_wnd.main_wnd, dc);
    00189
    00190   return _fooctr++;
    00191 }
    00192 #endif
    00193
    00194 /* Windows 95 will not have a WM_MOUSELEAVE message, so define it if needed */
    00195 #if !defined(WM_MOUSELEAVE)
    00196 #define WM_MOUSELEAVE 0x02A3
    00197 #endif
    00198 #define TID_POLLMOUSE 1
    00199 #define MOUSE_POLL_DELAY 75
    00200
    00201 static void CALLBACK TrackMouseTimerProc(HWND hwnd, UINT msg, UINT event, DWORD time)
    00202 {
    00203   RECT rc;
    00204   POINT pt;
    00205
    00206   /* Get the rectangle of our window and translate it to screen coordinates.
    00207    * Compare this with the current screen coordinates of the mouse and if it
    00208    * falls outside of the area or our window we have left the window. */
    00209   GetClientRect(hwnd, &rc);
    00210   MapWindowPoints(hwnd, HWND_DESKTOP, (LPPOINT)(LPRECT)&rc, 2);
    00211   GetCursorPos(&pt);
    00212
    00213   if (!PtInRect(&rc, pt) || (WindowFromPoint(pt) != hwnd)) {
    00214     KillTimer(hwnd, event);
    00215     PostMessage(hwnd, WM_MOUSELEAVE, 0, 0L);
    00216   }
    00217 }
    00218
    00219 static bool MakeWindow(bool full_screen)
    00220 {
    00221   _fullscreen = full_screen;
    00222
    00223   /* recreate window? */
    00224   if ((full_screen || _wnd.fullscreen) && _wnd.main_wnd) {
    00225     DestroyWindow(_wnd.main_wnd);
    00226     _wnd.main_wnd = 0;
    00227   }
    00228
    00229 #if defined(WINCE)
    00230   /* WinCE is always fullscreen */
    00231 #else
    00232   if (full_screen) {
    00233     DEVMODE settings;
    00234
    00235     /* Make sure we are always at least the screen-depth of the blitter */
    00236     if (_fullscreen_bpp < BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth()) _fullscreen_bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
    00237
    00238     memset(&settings, 0, sizeof(settings));
    00239     settings.dmSize = sizeof(settings);
    00240     settings.dmFields =
    00241       (_fullscreen_bpp != 0 ? DM_BITSPERPEL : 0) |
    00242       DM_PELSWIDTH |
    00243       DM_PELSHEIGHT |
    00244       (_display_hz != 0 ? DM_DISPLAYFREQUENCY : 0);
    00245     settings.dmBitsPerPel = _fullscreen_bpp;
    00246     settings.dmPelsWidth  = _wnd.width_org;
    00247     settings.dmPelsHeight = _wnd.height_org;
    00248     settings.dmDisplayFrequency = _display_hz;
    00249
    00250     if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
    00251       MakeWindow(false);  // don't care about the result
    00252       return false;  // the request failed
    00253     }
    00254   } else if (_wnd.fullscreen) {
    00255     /* restore display? */
    00256     ChangeDisplaySettings(NULL, 0);
    00257   }
    00258 #endif
    00259
    00260   {
    00261     RECT r;
    00262     DWORD style, showstyle;
    00263     int x, y, w, h;
    00264
    00265     showstyle = SW_SHOWNORMAL;
    00266     _wnd.fullscreen = full_screen;
    00267     if (_wnd.fullscreen) {
    00268       style = WS_POPUP;
    00269       SetRect(&r, 0, 0, _wnd.width_org, _wnd.height_org);
    00270     } else {
    00271       style = WS_OVERLAPPEDWINDOW;
    00272       /* On window creation, check if we were in maximize mode before */
    00273       if (_window_maximize) showstyle = SW_SHOWMAXIMIZED;
    00274       SetRect(&r, 0, 0, _wnd.width, _wnd.height);
    00275     }
    00276
    00277 #if !defined(WINCE)
    00278     AdjustWindowRect(&r, style, FALSE);
    00279 #endif
    00280     w = r.right - r.left;
    00281     h = r.bottom - r.top;
    00282     x = (GetSystemMetrics(SM_CXSCREEN) - w) / 2;
    00283     y = (GetSystemMetrics(SM_CYSCREEN) - h) / 2;
    00284
    00285     if (_wnd.main_wnd) {
    00286       ShowWindow(_wnd.main_wnd, SW_SHOWNORMAL); // remove maximize-flag
    00287       SetWindowPos(_wnd.main_wnd, 0, x, y, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER);
    00288     } else {
    00289       TCHAR Windowtitle[50];
    00290
    00291       _sntprintf(Windowtitle, lengthof(Windowtitle), _T("OpenTTD %s"), MB_TO_WIDE(_openttd_revision));
    00292
    00293       _wnd.main_wnd = CreateWindow(_T("OTTD"), Windowtitle, style, x, y, w, h, 0, 0, GetModuleHandle(NULL), 0);
    00294       if (_wnd.main_wnd == NULL) usererror("CreateWindow failed");
    00295       ShowWindow(_wnd.main_wnd, showstyle);
    00296     }
    00297   }
    00298   GameSizeChanged(); // invalidate all windows, force redraw
    00299   return true; // the request succedded
    00300 }
    00301
    00302 static LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
    00303 {
    00304   static uint32 keycode = 0;
    00305   static bool console = false;
    00306
    00307   switch (msg) {
    00308     case WM_CREATE:
    00309       SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
    00310       break;
    00311
    00312     case WM_PAINT: {
    00313       PAINTSTRUCT ps;
    00314       HDC dc, dc2;
    00315       HBITMAP old_bmp;
    00316       HPALETTE old_palette;
    00317
    00318       BeginPaint(hwnd, &ps);
    00319       dc = ps.hdc;
    00320       dc2 = CreateCompatibleDC(dc);
    00321       old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
    00322       old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
    00323
    00324       if (_pal_count_dirty != 0) {
    00325         Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
    00326
    00327         switch (blitter->UsePaletteAnimation()) {
    00328           case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
    00329             UpdatePalette(dc2, _pal_first_dirty, _pal_count_dirty);
    00330             break;
    00331
    00332           case Blitter::PALETTE_ANIMATION_BLITTER:
    00333             blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
    00334             break;
    00335
    00336           case Blitter::PALETTE_ANIMATION_NONE:
    00337             break;
    00338
    00339           default:
    00340             NOT_REACHED();
    00341         }
    00342         _pal_count_dirty = 0;
    00343       }
    00344
    00345       BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
    00346       SelectPalette(dc, old_palette, TRUE);
    00347       SelectObject(dc2, old_bmp);
    00348       DeleteDC(dc2);
    00349       EndPaint(hwnd, &ps);
    00350       return 0;
    00351     }
    00352
    00353     case WM_PALETTECHANGED:
    00354       if ((HWND)wParam == hwnd) return 0;
    00355       /* FALLTHROUGH */
    00356
    00357     case WM_QUERYNEWPALETTE: {
    00358       HDC hDC = GetWindowDC(hwnd);
    00359       HPALETTE hOldPalette = SelectPalette(hDC, _wnd.gdi_palette, FALSE);
    00360       UINT nChanged = RealizePalette(hDC);
    00361
    00362       SelectPalette(hDC, hOldPalette, TRUE);
    00363       ReleaseDC(hwnd, hDC);
    00364       if (nChanged) InvalidateRect(hwnd, NULL, FALSE);
    00365       return 0;
    00366     }
    00367
    00368     case WM_CLOSE:
    00369       HandleExitGameRequest();
    00370       return 0;
    00371
    00372     case WM_DESTROY:
    00373       if (_window_maximize) _cur_resolution = _bck_resolution;
    00374       return 0;
    00375
    00376     case WM_LBUTTONDOWN:
    00377       SetCapture(hwnd);
    00378       _left_button_down = true;
    00379       HandleMouseEvents();
    00380       return 0;
    00381
    00382     case WM_LBUTTONUP:
    00383       ReleaseCapture();
    00384       _left_button_down = false;
    00385       _left_button_clicked = false;
    00386       HandleMouseEvents();
    00387       return 0;
    00388
    00389     case WM_RBUTTONDOWN:
    00390       SetCapture(hwnd);
    00391       _right_button_down = true;
    00392       _right_button_clicked = true;
    00393       HandleMouseEvents();
    00394       return 0;
    00395
    00396     case WM_RBUTTONUP:
    00397       ReleaseCapture();
    00398       _right_button_down = false;
    00399       HandleMouseEvents();
    00400       return 0;
    00401
    00402     case WM_MOUSELEAVE:
    00403       UndrawMouseCursor();
    00404       _cursor.in_window = false;
    00405
    00406       if (!_left_button_down && !_right_button_down) MyShowCursor(true);
    00407       HandleMouseEvents();
    00408       return 0;
    00409
    00410     case WM_MOUSEMOVE: {
    00411       int x = (int16)LOWORD(lParam);
    00412       int y = (int16)HIWORD(lParam);
    00413       POINT pt;
    00414
    00415       /* If the mouse was not in the window and it has moved it means it has
    00416        * come into the window, so start drawing the mouse. Also start
    00417        * tracking the mouse for exiting the window */
    00418       if (!_cursor.in_window) {
    00419         _cursor.in_window = true;
    00420         SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
    00421
    00422         DrawMouseCursor();
    00423       }
    00424
    00425       if (_cursor.fix_at) {
    00426         int dx = x - _cursor.pos.x;
    00427         int dy = y - _cursor.pos.y;
    00428         if (dx != 0 || dy != 0) {
    00429           _cursor.delta.x = dx;
    00430           _cursor.delta.y = dy;
    00431
    00432           pt.x = _cursor.pos.x;
    00433           pt.y = _cursor.pos.y;
    00434
    00435           ClientToScreen(hwnd, &pt);
    00436           SetCursorPos(pt.x, pt.y);
    00437         }
    00438       } else {
    00439         _cursor.delta.x = x - _cursor.pos.x;
    00440         _cursor.delta.y = y - _cursor.pos.y;
    00441         _cursor.pos.x = x;
    00442         _cursor.pos.y = y;
    00443         _cursor.dirty = true;
    00444       }
    00445       MyShowCursor(false);
    00446       HandleMouseEvents();
    00447       return 0;
    00448     }
    00449
    00450 #if !defined(UNICODE)
    00451     case WM_INPUTLANGCHANGE: {
    00452       TCHAR locale[6];
    00453       LCID lcid = GB(lParam, 0, 16);
    00454
    00455       int len = GetLocaleInfo(lcid, LOCALE_IDEFAULTANSICODEPAGE, locale, lengthof(locale));
    00456       if (len != 0) _codepage = _ttoi(locale);
    00457       return 1;
    00458     }
    00459 #endif /* UNICODE */
    00460
    00461     case WM_DEADCHAR:
    00462       console = GB(lParam, 16, 8) == 41;
    00463       return 0;
    00464
    00465     case WM_CHAR: {
    00466       uint scancode = GB(lParam, 16, 8);
    00467       uint charcode = wParam;
    00468
    00469       /* If the console key is a dead-key, we need to press it twice to get a WM_CHAR message.
    00470        * But we then get two WM_CHAR messages, so ignore the first one */
    00471       if (console && scancode == 41) {
    00472         console = false;
    00473         return 0;
    00474       }
    00475
    00476 #if !defined(UNICODE)
    00477       wchar_t w;
    00478       int len = MultiByteToWideChar(_codepage, 0, (char*)&charcode, 1, &w, 1);
    00479       charcode = len == 1 ? w : 0;
    00480 #endif /* UNICODE */
    00481
    00482       /* No matter the keyboard layout, we will map the '~' to the console */
    00483       scancode = scancode == 41 ? (int)WKC_BACKQUOTE : keycode;
    00484       HandleKeypress(GB(charcode, 0, 16) | (scancode << 16));
    00485       return 0;
    00486     }
    00487
    00488     case WM_KEYDOWN: {
    00489       keycode = MapWindowsKey(wParam);
    00490
    00491       /* Silently drop all messages handled by WM_CHAR. */
    00492       MSG msg;
    00493       if (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
    00494         if (msg.message == WM_CHAR && GB(lParam, 16, 8) == GB(msg.lParam, 16, 8)) {
    00495           return 0;
    00496         }
    00497       }
    00498
    00499       HandleKeypress(0 | (keycode << 16));
    00500       return 0;
    00501     }
    00502
    00503     case WM_SYSKEYDOWN: // user presses F10 or Alt, both activating the title-menu
    00504       switch (wParam) {
    00505         case VK_RETURN:
    00506         case 'F': // Full Screen on ALT + ENTER/F
    00507           ToggleFullScreen(!_wnd.fullscreen);
    00508           return 0;
    00509
    00510         case VK_MENU: // Just ALT
    00511           return 0; // do nothing
    00512
    00513         case VK_F10: // F10, ignore activation of menu
    00514           HandleKeypress(MapWindowsKey(wParam) << 16);
    00515           return 0;
    00516
    00517         default: // ALT in combination with something else
    00518           HandleKeypress(MapWindowsKey(wParam) << 16);
    00519           break;
    00520       }
    00521       break;
    00522
    00523     case WM_SIZE:
    00524       if (wParam != SIZE_MINIMIZED) {
    00525         /* Set maximized flag when we maximize (obviously), but also when we
    00526          * switched to fullscreen from a maximized state */
    00527         _window_maximize = (wParam == SIZE_MAXIMIZED || (_window_maximize && _fullscreen));
    00528         if (_window_maximize) _bck_resolution = _cur_resolution;
    00529         ClientSizeChanged(LOWORD(lParam), HIWORD(lParam));
    00530       }
    00531       return 0;
    00532
    00533 #if !defined(WINCE)
    00534     case WM_SIZING: {
    00535       RECT *r = (RECT*)lParam;
    00536       RECT r2;
    00537       int w, h;
    00538
    00539       SetRect(&r2, 0, 0, 0, 0);
    00540       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
    00541
    00542       w = r->right - r->left - (r2.right - r2.left);
    00543       h = r->bottom - r->top - (r2.bottom - r2.top);
    00544       w = max(w, 64);
    00545       h = max(h, 64);
    00546       SetRect(&r2, 0, 0, w, h);
    00547
    00548       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
    00549       w = r2.right - r2.left;
    00550       h = r2.bottom - r2.top;
    00551
    00552       switch (wParam) {
    00553         case WMSZ_BOTTOM:
    00554           r->bottom = r->top + h;
    00555           break;
    00556
    00557         case WMSZ_BOTTOMLEFT:
    00558           r->bottom = r->top + h;
    00559           r->left = r->right - w;
    00560           break;
    00561
    00562         case WMSZ_BOTTOMRIGHT:
    00563           r->bottom = r->top + h;
    00564           r->right = r->left + w;
    00565           break;
    00566
    00567         case WMSZ_LEFT:
    00568           r->left = r->right - w;
    00569           break;
    00570
    00571         case WMSZ_RIGHT:
    00572           r->right = r->left + w;
    00573           break;
    00574
    00575         case WMSZ_TOP:
    00576           r->top = r->bottom - h;
    00577           break;
    00578
    00579         case WMSZ_TOPLEFT:
    00580           r->top = r->bottom - h;
    00581           r->left = r->right - w;
    00582           break;
    00583
    00584         case WMSZ_TOPRIGHT:
    00585           r->top = r->bottom - h;
    00586           r->right = r->left + w;
    00587           break;
    00588       }
    00589       return TRUE;
    00590     }
    00591 #endif
    00592
    00593 /* needed for wheel */
    00594 #if !defined(WM_MOUSEWHEEL)
    00595 # define WM_MOUSEWHEEL 0x020A
    00596 #endif  /* WM_MOUSEWHEEL */
    00597 #if !defined(GET_WHEEL_DELTA_WPARAM)
    00598 # define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD(wparam))
    00599 #endif  /* GET_WHEEL_DELTA_WPARAM */
    00600
    00601     case WM_MOUSEWHEEL: {
    00602       int delta = GET_WHEEL_DELTA_WPARAM(wParam);
    00603
    00604       if (delta < 0) {
    00605         _cursor.wheel++;
    00606       } else if (delta > 0) {
    00607         _cursor.wheel--;
    00608       }
    00609       HandleMouseEvents();
    00610       return 0;
    00611     }
    00612
    00613     case WM_SETFOCUS:
    00614       _wnd.has_focus = true;
    00615       break;
    00616
    00617     case WM_KILLFOCUS:
    00618       _wnd.has_focus = false;
    00619       break;
    00620
    00621 #if !defined(WINCE)
    00622     case WM_ACTIVATE: {
    00623       /* Don't do anything if we are closing openttd */
    00624       if (_exit_game) break;
    00625
    00626       bool active = (LOWORD(wParam) != WA_INACTIVE);
    00627       bool minimized = (HIWORD(wParam) != 0);
    00628       if (_wnd.fullscreen) {
    00629         if (active && minimized) {
    00630           /* Restore the game window */
    00631           ShowWindow(hwnd, SW_RESTORE);
    00632           MakeWindow(true);
    00633         } else if (!active && !minimized) {
    00634           /* Minimise the window and restore desktop */
    00635           ShowWindow(hwnd, SW_MINIMIZE);
    00636           ChangeDisplaySettings(NULL, 0);
    00637         }
    00638       }
    00639     } break;
    00640 #endif
    00641   }
    00642
    00643   return DefWindowProc(hwnd, msg, wParam, lParam);
    00644 }
    00645
    00646 static void RegisterWndClass()
    00647 {
    00648   static bool registered = false;
    00649
    00650   if (!registered) {
    00651     HINSTANCE hinst = GetModuleHandle(NULL);
    00652     WNDCLASS wnd = {
    00653       0,
    00654       WndProcGdi,
    00655       0,
    00656       0,
    00657       hinst,
    00658       LoadIcon(hinst, MAKEINTRESOURCE(100)),
    00659       LoadCursor(NULL, IDC_ARROW),
    00660       0,
    00661       0,
    00662       _T("OTTD")
    00663     };
    00664
    00665     registered = true;
    00666     if (!RegisterClass(&wnd)) usererror("RegisterClass failed");
    00667   }
    00668 }
    00669
    00670 static bool AllocateDibSection(int w, int h)
    00671 {
    00672   BITMAPINFO *bi;
    00673   HDC dc;
    00674   int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
    00675
    00676   w = max(w, 64);
    00677   h = max(h, 64);
    00678
    00679   if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
    00680
    00681   if (w == _screen.width && h == _screen.height)
    00682     return false;
    00683
    00684   _screen.width = w;
    00685   _screen.pitch = (bpp == 8) ? Align(w, 4) : w;
    00686   _screen.height = h;
    00687   bi = (BITMAPINFO*)alloca(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
    00688   memset(bi, 0, sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
    00689   bi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    00690
    00691   bi->bmiHeader.biWidth = _wnd.width = w;
    00692   bi->bmiHeader.biHeight = -(_wnd.height = h);
    00693
    00694   bi->bmiHeader.biPlanes = 1;
    00695   bi->bmiHeader.biBitCount = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
    00696   bi->bmiHeader.biCompression = BI_RGB;
    00697
    00698   if (_wnd.dib_sect) DeleteObject(_wnd.dib_sect);
    00699
    00700   dc = GetDC(0);
    00701   _wnd.dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID**)&_wnd.buffer_bits, NULL, 0);
    00702   if (_wnd.dib_sect == NULL) usererror("CreateDIBSection failed");
    00703   ReleaseDC(0, dc);
    00704
    00705   return true;
    00706 }
    00707
    00708 static const Dimension default_resolutions[] = {
    00709   {  640,  480 },
    00710   {  800,  600 },
    00711   { 1024,  768 },
    00712   { 1152,  864 },
    00713   { 1280,  800 },
    00714   { 1280,  960 },
    00715   { 1280, 1024 },
    00716   { 1400, 1050 },
    00717   { 1600, 1200 },
    00718   { 1680, 1050 },
    00719   { 1920, 1200 }
    00720 };
    00721
    00722 static void FindResolutions()
    00723 {
    00724   uint n = 0;
    00725 #if defined(WINCE)
    00726   /* EnumDisplaySettingsW is only supported in CE 4.2+
    00727    * XXX -- One might argue that we assume 4.2+ on every system. Then we can use this function safely */
    00728 #else
    00729   uint i;
    00730   DEVMODEA dm;
    00731
    00732   /* XXX - EnumDisplaySettingsW crashes with unicows.dll on Windows95
    00733    * Doesn't really matter since we don't pass a string anyways, but still
    00734    * a letdown */
    00735   for (i = 0; EnumDisplaySettingsA(NULL, i, &dm) != 0; i++) {
    00736     if (dm.dmBitsPerPel == BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() &&
    00737         dm.dmPelsWidth >= 640 && dm.dmPelsHeight >= 480) {
    00738       uint j;
    00739
    00740       for (j = 0; j < n; j++) {
    00741         if (_resolutions[j].width == (int)dm.dmPelsWidth && _resolutions[j].height == (int)dm.dmPelsHeight) break;
    00742       }
    00743
    00744       /* In the previous loop we have checked already existing/added resolutions if
    00745        * they are the same as the new ones. If this is not the case (j == n); we have
    00746        * looped all and found none, add the new one to the list. If we have reached the
    00747        * maximum amount of resolutions, then quit querying the display */
    00748       if (j == n) {
    00749         _resolutions[j].width  = dm.dmPelsWidth;
    00750         _resolutions[j].height = dm.dmPelsHeight;
    00751         if (++n == lengthof(_resolutions)) break;
    00752       }
    00753     }
    00754   }
    00755 #endif
    00756
    00757   /* We have found no resolutions, show the default list */
    00758   if (n == 0) {
    00759     memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
    00760     n = lengthof(default_resolutions);
    00761   }
    00762
    00763   _num_resolutions = n;
    00764   SortResolutions(_num_resolutions);
    00765 }
    00766
    00767 static FVideoDriver_Win32 iFVideoDriver_Win32;
    00768
    00769 const char *VideoDriver_Win32::Start(const char * const *parm)
    00770 {
    00771   memset(&_wnd, 0, sizeof(_wnd));
    00772
    00773   RegisterWndClass();
    00774
    00775   MakePalette();
    00776
    00777   FindResolutions();
    00778
    00779   DEBUG(driver, 2, "Resolution for display: %dx%d", _cur_resolution.width, _cur_resolution.height);
    00780
    00781   /* fullscreen uses those */
    00782   _wnd.width_org  = _cur_resolution.width;
    00783   _wnd.height_org = _cur_resolution.height;
    00784
    00785   AllocateDibSection(_cur_resolution.width, _cur_resolution.height);
    00786   MakeWindow(_fullscreen);
    00787
    00788   MarkWholeScreenDirty();
    00789
    00790   return NULL;
    00791 }
    00792
    00793 void VideoDriver_Win32::Stop()
    00794 {
    00795   DeleteObject(_wnd.gdi_palette);
    00796   DeleteObject(_wnd.dib_sect);
    00797   DestroyWindow(_wnd.main_wnd);
    00798
    00799 #if !defined(WINCE)
    00800   if (_wnd.fullscreen) ChangeDisplaySettings(NULL, 0);
    00801 #endif
    00802   MyShowCursor(true);
    00803 }
    00804
    00805 void VideoDriver_Win32::MakeDirty(int left, int top, int width, int height)
    00806 {
    00807   RECT r = { left, top, left + width, top + height };
    00808
    00809   InvalidateRect(_wnd.main_wnd, &r, FALSE);
    00810 }
    00811
    00812 static void CheckPaletteAnim()
    00813 {
    00814   if (_pal_count_dirty == 0)
    00815     return;
    00816   InvalidateRect(_wnd.main_wnd, NULL, FALSE);
    00817 }
    00818
    00819 void VideoDriver_Win32::MainLoop()
    00820 {
    00821   MSG mesg;
    00822   uint32 cur_ticks = GetTickCount();
    00823   uint32 last_cur_ticks = cur_ticks;
    00824   uint32 next_tick = cur_ticks + 30;
    00825
    00826   _wnd.running = true;
    00827
    00828   for (;;) {
    00829     uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
    00830
    00831     while (PeekMessage(&mesg, NULL, 0, 0, PM_REMOVE)) {
    00832       InteractiveRandom(); // randomness
    00833       TranslateMessage(&mesg);
    00834       DispatchMessage(&mesg);
    00835     }
    00836     if (_exit_game) return;
    00837
    00838 #if defined(_DEBUG)
    00839     if (_wnd.has_focus && GetAsyncKeyState(VK_SHIFT) < 0 &&
    00840 #else
    00841     /* Speed up using TAB, but disable for ALT+TAB of course */
    00842     if (_wnd.has_focus && GetAsyncKeyState(VK_TAB) < 0 && GetAsyncKeyState(VK_MENU) >= 0 &&
    00843 #endif
    00844         !_networking && _game_mode != GM_MENU) {
    00845       _fast_forward |= 2;
    00846     } else if (_fast_forward & 2) {
    00847       _fast_forward = 0;
    00848     }
    00849
    00850     cur_ticks = GetTickCount();
    00851     if (cur_ticks >= next_tick || (_fast_forward && !_pause_game) || cur_ticks < prev_cur_ticks) {
    00852       _realtime_tick += cur_ticks - last_cur_ticks;
    00853       last_cur_ticks = cur_ticks;
    00854       next_tick = cur_ticks + 30;
    00855
    00856       bool old_ctrl_pressed = _ctrl_pressed;
    00857
    00858       _ctrl_pressed = _wnd.has_focus && GetAsyncKeyState(VK_CONTROL)<0;
    00859       _shift_pressed = _wnd.has_focus && GetAsyncKeyState(VK_SHIFT)<0;
    00860
    00861       /* determine which directional keys are down */
    00862       if (_wnd.has_focus) {
    00863         _dirkeys =
    00864           (GetAsyncKeyState(VK_LEFT) < 0 ? 1 : 0) +
    00865           (GetAsyncKeyState(VK_UP) < 0 ? 2 : 0) +
    00866           (GetAsyncKeyState(VK_RIGHT) < 0 ? 4 : 0) +
    00867           (GetAsyncKeyState(VK_DOWN) < 0 ? 8 : 0);
    00868       } else {
    00869         _dirkeys = 0;
    00870       }
    00871
    00872       if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
    00873
    00874       GameLoop();
    00875
    00876       if (_force_full_redraw) MarkWholeScreenDirty();
    00877
    00878 #if !defined(WINCE)
    00879       GdiFlush();
    00880 #endif
    00881       _screen.dst_ptr = _wnd.buffer_bits;
    00882       UpdateWindows();
    00883       CheckPaletteAnim();
    00884     } else {
    00885       Sleep(1);
    00886 #if !defined(WINCE)
    00887       GdiFlush();
    00888 #endif
    00889       _screen.dst_ptr = _wnd.buffer_bits;
    00890       NetworkDrawChatMessage();
    00891       DrawMouseCursor();
    00892     }
    00893   }
    00894 }
    00895
    00896 bool VideoDriver_Win32::ChangeResolution(int w, int h)
    00897 {
    00898   _wnd.width = _wnd.width_org = w;
    00899   _wnd.height = _wnd.height_org = h;
    00900
    00901   return MakeWindow(_fullscreen); // _wnd.fullscreen screws up ingame resolution switching
    00902 }
    00903
    00904 bool VideoDriver_Win32::ToggleFullscreen(bool full_screen)
    00905 {
    00906   return MakeWindow(full_screen);
    00907 }