# win32_v.cpp

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    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 }