win32_v.cpp

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00001 /* $Id$ */
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 "../os/windows/win32.h"
00016 #include "../rev.h"
00017 #include "../blitter/factory.hpp"
00018 #include "../network/network.h"
00019 #include "../core/math_func.hpp"
00020 #include "../core/random_func.hpp"
00021 #include "../texteff.hpp"
00022 #include "win32_v.h"
00023 #include <windows.h>
00024 
00025 static struct {
00026   HWND main_wnd;
00027   HBITMAP dib_sect;
00028   void *buffer_bits;
00029   HPALETTE gdi_palette;
00030   int width;
00031   int height;
00032   int width_org;
00033   int height_org;
00034   bool fullscreen;
00035   bool has_focus;
00036   bool running;
00037 } _wnd;
00038 
00039 bool _force_full_redraw;
00040 bool _window_maximize;
00041 uint _display_hz;
00042 uint _fullscreen_bpp;
00043 static Dimension _bck_resolution;
00044 #if !defined(UNICODE)
00045 uint _codepage;
00046 #endif
00047 
00048 static void MakePalette()
00049 {
00050   LOGPALETTE *pal;
00051   uint i;
00052 
00053   pal = (LOGPALETTE*)alloca(sizeof(LOGPALETTE) + (256 - 1) * sizeof(PALETTEENTRY));
00054 
00055   pal->palVersion = 0x300;
00056   pal->palNumEntries = 256;
00057 
00058   for (i = 0; i != 256; i++) {
00059     pal->palPalEntry[i].peRed   = _cur_palette[i].r;
00060     pal->palPalEntry[i].peGreen = _cur_palette[i].g;
00061     pal->palPalEntry[i].peBlue  = _cur_palette[i].b;
00062     pal->palPalEntry[i].peFlags = 0;
00063 
00064   }
00065   _wnd.gdi_palette = CreatePalette(pal);
00066   if (_wnd.gdi_palette == NULL) usererror("CreatePalette failed!\n");
00067 }
00068 
00069 static void UpdatePalette(HDC dc, uint start, uint count)
00070 {
00071   RGBQUAD rgb[256];
00072   uint i;
00073 
00074   for (i = 0; i != count; i++) {
00075     rgb[i].rgbRed   = _cur_palette[start + i].r;
00076     rgb[i].rgbGreen = _cur_palette[start + i].g;
00077     rgb[i].rgbBlue  = _cur_palette[start + i].b;
00078     rgb[i].rgbReserved = 0;
00079   }
00080 
00081   SetDIBColorTable(dc, start, count, rgb);
00082 }
00083 
00084 struct VkMapping {
00085   byte vk_from;
00086   byte vk_count;
00087   byte map_to;
00088 };
00089 
00090 #define AS(x, z) {x, 0, z}
00091 #define AM(x, y, z, w) {x, y - x, z}
00092 
00093 static const VkMapping _vk_mapping[] = {
00094   /* Pageup stuff + up/down */
00095   AM(VK_PRIOR, VK_DOWN, WKC_PAGEUP, WKC_DOWN),
00096   /* Map letters & digits */
00097   AM('A', 'Z', 'A', 'Z'),
00098   AM('0', '9', '0', '9'),
00099 
00100   AS(VK_ESCAPE,   WKC_ESC),
00101   AS(VK_PAUSE,    WKC_PAUSE),
00102   AS(VK_BACK,     WKC_BACKSPACE),
00103   AM(VK_INSERT,   VK_DELETE, WKC_INSERT, WKC_DELETE),
00104 
00105   AS(VK_SPACE,    WKC_SPACE),
00106   AS(VK_RETURN,   WKC_RETURN),
00107   AS(VK_TAB,      WKC_TAB),
00108 
00109   /* Function keys */
00110   AM(VK_F1, VK_F12, WKC_F1, WKC_F12),
00111 
00112   /* Numeric part */
00113   AM(VK_NUMPAD0, VK_NUMPAD9, '0', '9'),
00114   AS(VK_DIVIDE,   WKC_NUM_DIV),
00115   AS(VK_MULTIPLY, WKC_NUM_MUL),
00116   AS(VK_SUBTRACT, WKC_NUM_MINUS),
00117   AS(VK_ADD,      WKC_NUM_PLUS),
00118   AS(VK_DECIMAL,  WKC_NUM_DECIMAL),
00119 
00120   /* Other non-letter keys */
00121   AS(0xBF,  WKC_SLASH),
00122   AS(0xBA,  WKC_SEMICOLON),
00123   AS(0xBB,  WKC_EQUALS),
00124   AS(0xDB,  WKC_L_BRACKET),
00125   AS(0xDC,  WKC_BACKSLASH),
00126   AS(0xDD,  WKC_R_BRACKET),
00127 
00128   AS(0xDE,  WKC_SINGLEQUOTE),
00129   AS(0xBC,  WKC_COMMA),
00130   AS(0xBD,  WKC_MINUS),
00131   AS(0xBE,  WKC_PERIOD)
00132 };
00133 
00134 static uint MapWindowsKey(uint sym)
00135 {
00136   const VkMapping *map;
00137   uint key = 0;
00138 
00139   for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
00140     if ((uint)(sym - map->vk_from) <= map->vk_count) {
00141       key = sym - map->vk_from + map->map_to;
00142       break;
00143     }
00144   }
00145 
00146   if (GetAsyncKeyState(VK_SHIFT)   < 0) key |= WKC_SHIFT;
00147   if (GetAsyncKeyState(VK_CONTROL) < 0) key |= WKC_CTRL;
00148   if (GetAsyncKeyState(VK_MENU)    < 0) key |= WKC_ALT;
00149   return key;
00150 }
00151 
00152 static bool AllocateDibSection(int w, int h);
00153 
00154 static void ClientSizeChanged(int w, int h)
00155 {
00156   /* allocate new dib section of the new size */
00157   if (AllocateDibSection(w, h)) {
00158     /* mark all palette colors dirty */
00159     _pal_first_dirty = 0;
00160     _pal_count_dirty = 256;
00161 
00162     BlitterFactoryBase::GetCurrentBlitter()->PostResize();
00163 
00164     GameSizeChanged();
00165 
00166     /* redraw screen */
00167     if (_wnd.running) {
00168       _screen.dst_ptr = _wnd.buffer_bits;
00169       UpdateWindows();
00170     }
00171   }
00172 }
00173 
00174 #ifdef _DEBUG
00175 /* Keep this function here..
00176  * It allows you to redraw the screen from within the MSVC debugger */
00177 int RedrawScreenDebug()
00178 {
00179   HDC dc, dc2;
00180   static int _fooctr;
00181   HBITMAP old_bmp;
00182   HPALETTE old_palette;
00183 
00184   _screen.dst_ptr = _wnd.buffer_bits;
00185   UpdateWindows();
00186 
00187   dc = GetDC(_wnd.main_wnd);
00188   dc2 = CreateCompatibleDC(dc);
00189 
00190   old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
00191   old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
00192   BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
00193   SelectPalette(dc, old_palette, TRUE);
00194   SelectObject(dc2, old_bmp);
00195   DeleteDC(dc2);
00196   ReleaseDC(_wnd.main_wnd, dc);
00197 
00198   return _fooctr++;
00199 }
00200 #endif
00201 
00202 /* Windows 95 will not have a WM_MOUSELEAVE message, so define it if needed */
00203 #if !defined(WM_MOUSELEAVE)
00204 #define WM_MOUSELEAVE 0x02A3
00205 #endif
00206 #define TID_POLLMOUSE 1
00207 #define MOUSE_POLL_DELAY 75
00208 
00209 static void CALLBACK TrackMouseTimerProc(HWND hwnd, UINT msg, UINT event, DWORD time)
00210 {
00211   RECT rc;
00212   POINT pt;
00213 
00214   /* Get the rectangle of our window and translate it to screen coordinates.
00215    * Compare this with the current screen coordinates of the mouse and if it
00216    * falls outside of the area or our window we have left the window. */
00217   GetClientRect(hwnd, &rc);
00218   MapWindowPoints(hwnd, HWND_DESKTOP, (LPPOINT)(LPRECT)&rc, 2);
00219   GetCursorPos(&pt);
00220 
00221   if (!PtInRect(&rc, pt) || (WindowFromPoint(pt) != hwnd)) {
00222     KillTimer(hwnd, event);
00223     PostMessage(hwnd, WM_MOUSELEAVE, 0, 0L);
00224   }
00225 }
00226 
00227 bool VideoDriver_Win32::MakeWindow(bool full_screen)
00228 {
00229   _fullscreen = full_screen;
00230 
00231   /* recreate window? */
00232   if ((full_screen || _wnd.fullscreen) && _wnd.main_wnd) {
00233     DestroyWindow(_wnd.main_wnd);
00234     _wnd.main_wnd = 0;
00235   }
00236 
00237 #if defined(WINCE)
00238   /* WinCE is always fullscreen */
00239 #else
00240   if (full_screen) {
00241     DEVMODE settings;
00242 
00243     /* Make sure we are always at least the screen-depth of the blitter */
00244     if (_fullscreen_bpp < BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth()) _fullscreen_bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00245 
00246     memset(&settings, 0, sizeof(settings));
00247     settings.dmSize = sizeof(settings);
00248     settings.dmFields =
00249       (_fullscreen_bpp != 0 ? DM_BITSPERPEL : 0) |
00250       DM_PELSWIDTH |
00251       DM_PELSHEIGHT |
00252       (_display_hz != 0 ? DM_DISPLAYFREQUENCY : 0);
00253     settings.dmBitsPerPel = _fullscreen_bpp;
00254     settings.dmPelsWidth  = _wnd.width_org;
00255     settings.dmPelsHeight = _wnd.height_org;
00256     settings.dmDisplayFrequency = _display_hz;
00257 
00258     /* Test fullscreen with current resolution, if it fails use desktop resolution. */
00259     if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN | CDS_TEST) != DISP_CHANGE_SUCCESSFUL) {
00260       RECT r;
00261       GetWindowRect(GetDesktopWindow(), &r);
00262       return this->ChangeResolution(r.right - r.left, r.bottom - r.top);
00263     }
00264 
00265     if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
00266       this->MakeWindow(false);  // don't care about the result
00267       return false;  // the request failed
00268     }
00269   } else if (_wnd.fullscreen) {
00270     /* restore display? */
00271     ChangeDisplaySettings(NULL, 0);
00272   }
00273 #endif
00274 
00275   {
00276     RECT r;
00277     DWORD style, showstyle;
00278     int x, y, w, h;
00279 
00280     showstyle = SW_SHOWNORMAL;
00281     _wnd.fullscreen = full_screen;
00282     if (_wnd.fullscreen) {
00283       style = WS_POPUP;
00284       SetRect(&r, 0, 0, _wnd.width_org, _wnd.height_org);
00285     } else {
00286       style = WS_OVERLAPPEDWINDOW;
00287       /* On window creation, check if we were in maximize mode before */
00288       if (_window_maximize) showstyle = SW_SHOWMAXIMIZED;
00289       SetRect(&r, 0, 0, _wnd.width, _wnd.height);
00290     }
00291 
00292 #if !defined(WINCE)
00293     AdjustWindowRect(&r, style, FALSE);
00294 #endif
00295     w = r.right - r.left;
00296     h = r.bottom - r.top;
00297     x = (GetSystemMetrics(SM_CXSCREEN) - w) / 2;
00298     y = (GetSystemMetrics(SM_CYSCREEN) - h) / 2;
00299 
00300     if (_wnd.main_wnd) {
00301       ShowWindow(_wnd.main_wnd, SW_SHOWNORMAL); // remove maximize-flag
00302       SetWindowPos(_wnd.main_wnd, 0, x, y, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER);
00303     } else {
00304       TCHAR Windowtitle[50];
00305 
00306       _sntprintf(Windowtitle, lengthof(Windowtitle), _T("OpenTTD %s"), MB_TO_WIDE(_openttd_revision));
00307 
00308       _wnd.main_wnd = CreateWindow(_T("OTTD"), Windowtitle, style, x, y, w, h, 0, 0, GetModuleHandle(NULL), 0);
00309       if (_wnd.main_wnd == NULL) usererror("CreateWindow failed");
00310       ShowWindow(_wnd.main_wnd, showstyle);
00311     }
00312   }
00313 
00314   BlitterFactoryBase::GetCurrentBlitter()->PostResize();
00315 
00316   GameSizeChanged(); // invalidate all windows, force redraw
00317   return true; // the request succedded
00318 }
00319 
00320 static LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
00321 {
00322   static uint32 keycode = 0;
00323   static bool console = false;
00324 
00325   switch (msg) {
00326     case WM_CREATE:
00327       SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
00328       break;
00329 
00330     case WM_PAINT: {
00331       PAINTSTRUCT ps;
00332       HDC dc, dc2;
00333       HBITMAP old_bmp;
00334       HPALETTE old_palette;
00335 
00336       BeginPaint(hwnd, &ps);
00337       dc = ps.hdc;
00338       dc2 = CreateCompatibleDC(dc);
00339       old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
00340       old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
00341 
00342       if (_pal_count_dirty != 0) {
00343         Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00344 
00345         switch (blitter->UsePaletteAnimation()) {
00346           case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
00347             UpdatePalette(dc2, _pal_first_dirty, _pal_count_dirty);
00348             break;
00349 
00350           case Blitter::PALETTE_ANIMATION_BLITTER:
00351             blitter->PaletteAnimate(_pal_first_dirty, _pal_count_dirty);
00352             break;
00353 
00354           case Blitter::PALETTE_ANIMATION_NONE:
00355             break;
00356 
00357           default:
00358             NOT_REACHED();
00359         }
00360         _pal_count_dirty = 0;
00361       }
00362 
00363       BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
00364       SelectPalette(dc, old_palette, TRUE);
00365       SelectObject(dc2, old_bmp);
00366       DeleteDC(dc2);
00367       EndPaint(hwnd, &ps);
00368       return 0;
00369     }
00370 
00371     case WM_PALETTECHANGED:
00372       if ((HWND)wParam == hwnd) return 0;
00373       /* FALL THROUGH */
00374 
00375     case WM_QUERYNEWPALETTE: {
00376       HDC hDC = GetWindowDC(hwnd);
00377       HPALETTE hOldPalette = SelectPalette(hDC, _wnd.gdi_palette, FALSE);
00378       UINT nChanged = RealizePalette(hDC);
00379 
00380       SelectPalette(hDC, hOldPalette, TRUE);
00381       ReleaseDC(hwnd, hDC);
00382       if (nChanged) InvalidateRect(hwnd, NULL, FALSE);
00383       return 0;
00384     }
00385 
00386     case WM_CLOSE:
00387       HandleExitGameRequest();
00388       return 0;
00389 
00390     case WM_DESTROY:
00391       if (_window_maximize) _cur_resolution = _bck_resolution;
00392       return 0;
00393 
00394     case WM_LBUTTONDOWN:
00395       SetCapture(hwnd);
00396       _left_button_down = true;
00397       HandleMouseEvents();
00398       return 0;
00399 
00400     case WM_LBUTTONUP:
00401       ReleaseCapture();
00402       _left_button_down = false;
00403       _left_button_clicked = false;
00404       HandleMouseEvents();
00405       return 0;
00406 
00407     case WM_RBUTTONDOWN:
00408       SetCapture(hwnd);
00409       _right_button_down = true;
00410       _right_button_clicked = true;
00411       HandleMouseEvents();
00412       return 0;
00413 
00414     case WM_RBUTTONUP:
00415       ReleaseCapture();
00416       _right_button_down = false;
00417       HandleMouseEvents();
00418       return 0;
00419 
00420     case WM_MOUSELEAVE:
00421       UndrawMouseCursor();
00422       _cursor.in_window = false;
00423 
00424       if (!_left_button_down && !_right_button_down) MyShowCursor(true);
00425       return 0;
00426 
00427     case WM_MOUSEMOVE: {
00428       int x = (int16)LOWORD(lParam);
00429       int y = (int16)HIWORD(lParam);
00430       POINT pt;
00431 
00432       /* If the mouse was not in the window and it has moved it means it has
00433        * come into the window, so start drawing the mouse. Also start
00434        * tracking the mouse for exiting the window */
00435       if (!_cursor.in_window) {
00436         _cursor.in_window = true;
00437         SetTimer(hwnd, TID_POLLMOUSE, MOUSE_POLL_DELAY, (TIMERPROC)TrackMouseTimerProc);
00438 
00439         DrawMouseCursor();
00440       }
00441 
00442       if (_cursor.fix_at) {
00443         int dx = x - _cursor.pos.x;
00444         int dy = y - _cursor.pos.y;
00445         if (dx != 0 || dy != 0) {
00446           _cursor.delta.x = dx;
00447           _cursor.delta.y = dy;
00448 
00449           pt.x = _cursor.pos.x;
00450           pt.y = _cursor.pos.y;
00451 
00452           ClientToScreen(hwnd, &pt);
00453           SetCursorPos(pt.x, pt.y);
00454         }
00455       } else {
00456         _cursor.delta.x = x - _cursor.pos.x;
00457         _cursor.delta.y = y - _cursor.pos.y;
00458         _cursor.pos.x = x;
00459         _cursor.pos.y = y;
00460         _cursor.dirty = true;
00461       }
00462       MyShowCursor(false);
00463       HandleMouseEvents();
00464       return 0;
00465     }
00466 
00467 #if !defined(UNICODE)
00468     case WM_INPUTLANGCHANGE: {
00469       TCHAR locale[6];
00470       LCID lcid = GB(lParam, 0, 16);
00471 
00472       int len = GetLocaleInfo(lcid, LOCALE_IDEFAULTANSICODEPAGE, locale, lengthof(locale));
00473       if (len != 0) _codepage = _ttoi(locale);
00474       return 1;
00475     }
00476 #endif /* UNICODE */
00477 
00478     case WM_DEADCHAR:
00479       console = GB(lParam, 16, 8) == 41;
00480       return 0;
00481 
00482     case WM_CHAR: {
00483       uint scancode = GB(lParam, 16, 8);
00484       uint charcode = wParam;
00485 
00486       /* If the console key is a dead-key, we need to press it twice to get a WM_CHAR message.
00487        * But we then get two WM_CHAR messages, so ignore the first one */
00488       if (console && scancode == 41) {
00489         console = false;
00490         return 0;
00491       }
00492 
00493 #if !defined(UNICODE)
00494       wchar_t w;
00495       int len = MultiByteToWideChar(_codepage, 0, (char*)&charcode, 1, &w, 1);
00496       charcode = len == 1 ? w : 0;
00497 #endif /* UNICODE */
00498 
00499       /* No matter the keyboard layout, we will map the '~' to the console */
00500       scancode = scancode == 41 ? (int)WKC_BACKQUOTE : keycode;
00501       HandleKeypress(GB(charcode, 0, 16) | (scancode << 16));
00502       return 0;
00503     }
00504 
00505     case WM_KEYDOWN: {
00506       keycode = MapWindowsKey(wParam);
00507 
00508       /* Silently drop all messages handled by WM_CHAR. */
00509       MSG msg;
00510       if (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
00511         if (msg.message == WM_CHAR && GB(lParam, 16, 8) == GB(msg.lParam, 16, 8)) {
00512           return 0;
00513         }
00514       }
00515 
00516       HandleKeypress(0 | (keycode << 16));
00517       return 0;
00518     }
00519 
00520     case WM_SYSKEYDOWN: // user presses F10 or Alt, both activating the title-menu
00521       switch (wParam) {
00522         case VK_RETURN:
00523         case 'F': // Full Screen on ALT + ENTER/F
00524           ToggleFullScreen(!_wnd.fullscreen);
00525           return 0;
00526 
00527         case VK_MENU: // Just ALT
00528           return 0; // do nothing
00529 
00530         case VK_F10: // F10, ignore activation of menu
00531           HandleKeypress(MapWindowsKey(wParam) << 16);
00532           return 0;
00533 
00534         default: // ALT in combination with something else
00535           HandleKeypress(MapWindowsKey(wParam) << 16);
00536           break;
00537       }
00538       break;
00539 
00540     case WM_SIZE:
00541       if (wParam != SIZE_MINIMIZED) {
00542         /* Set maximized flag when we maximize (obviously), but also when we
00543          * switched to fullscreen from a maximized state */
00544         _window_maximize = (wParam == SIZE_MAXIMIZED || (_window_maximize && _fullscreen));
00545         if (_window_maximize) _bck_resolution = _cur_resolution;
00546         ClientSizeChanged(LOWORD(lParam), HIWORD(lParam));
00547       }
00548       return 0;
00549 
00550 #if !defined(WINCE)
00551     case WM_SIZING: {
00552       RECT *r = (RECT*)lParam;
00553       RECT r2;
00554       int w, h;
00555 
00556       SetRect(&r2, 0, 0, 0, 0);
00557       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
00558 
00559       w = r->right - r->left - (r2.right - r2.left);
00560       h = r->bottom - r->top - (r2.bottom - r2.top);
00561       w = max(w, 64);
00562       h = max(h, 64);
00563       SetRect(&r2, 0, 0, w, h);
00564 
00565       AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
00566       w = r2.right - r2.left;
00567       h = r2.bottom - r2.top;
00568 
00569       switch (wParam) {
00570         case WMSZ_BOTTOM:
00571           r->bottom = r->top + h;
00572           break;
00573 
00574         case WMSZ_BOTTOMLEFT:
00575           r->bottom = r->top + h;
00576           r->left = r->right - w;
00577           break;
00578 
00579         case WMSZ_BOTTOMRIGHT:
00580           r->bottom = r->top + h;
00581           r->right = r->left + w;
00582           break;
00583 
00584         case WMSZ_LEFT:
00585           r->left = r->right - w;
00586           break;
00587 
00588         case WMSZ_RIGHT:
00589           r->right = r->left + w;
00590           break;
00591 
00592         case WMSZ_TOP:
00593           r->top = r->bottom - h;
00594           break;
00595 
00596         case WMSZ_TOPLEFT:
00597           r->top = r->bottom - h;
00598           r->left = r->right - w;
00599           break;
00600 
00601         case WMSZ_TOPRIGHT:
00602           r->top = r->bottom - h;
00603           r->right = r->left + w;
00604           break;
00605       }
00606       return TRUE;
00607     }
00608 #endif
00609 
00610 /* needed for wheel */
00611 #if !defined(WM_MOUSEWHEEL)
00612 # define WM_MOUSEWHEEL 0x020A
00613 #endif  /* WM_MOUSEWHEEL */
00614 #if !defined(GET_WHEEL_DELTA_WPARAM)
00615 # define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD(wparam))
00616 #endif  /* GET_WHEEL_DELTA_WPARAM */
00617 
00618     case WM_MOUSEWHEEL: {
00619       int delta = GET_WHEEL_DELTA_WPARAM(wParam);
00620 
00621       if (delta < 0) {
00622         _cursor.wheel++;
00623       } else if (delta > 0) {
00624         _cursor.wheel--;
00625       }
00626       HandleMouseEvents();
00627       return 0;
00628     }
00629 
00630     case WM_SETFOCUS:
00631       _wnd.has_focus = true;
00632       break;
00633 
00634     case WM_KILLFOCUS:
00635       _wnd.has_focus = false;
00636       break;
00637 
00638 #if !defined(WINCE)
00639     case WM_ACTIVATE: {
00640       /* Don't do anything if we are closing openttd */
00641       if (_exit_game) break;
00642 
00643       bool active = (LOWORD(wParam) != WA_INACTIVE);
00644       bool minimized = (HIWORD(wParam) != 0);
00645       if (_wnd.fullscreen) {
00646         if (active && minimized) {
00647           /* Restore the game window */
00648           ShowWindow(hwnd, SW_RESTORE);
00649           static_cast<VideoDriver_Win32 *>(_video_driver)->MakeWindow(true);
00650         } else if (!active && !minimized) {
00651           /* Minimise the window and restore desktop */
00652           ShowWindow(hwnd, SW_MINIMIZE);
00653           ChangeDisplaySettings(NULL, 0);
00654         }
00655       }
00656       break;
00657     }
00658 #endif
00659   }
00660 
00661   return DefWindowProc(hwnd, msg, wParam, lParam);
00662 }
00663 
00664 static void RegisterWndClass()
00665 {
00666   static bool registered = false;
00667 
00668   if (!registered) {
00669     HINSTANCE hinst = GetModuleHandle(NULL);
00670     WNDCLASS wnd = {
00671       0,
00672       WndProcGdi,
00673       0,
00674       0,
00675       hinst,
00676       LoadIcon(hinst, MAKEINTRESOURCE(100)),
00677       LoadCursor(NULL, IDC_ARROW),
00678       0,
00679       0,
00680       _T("OTTD")
00681     };
00682 
00683     registered = true;
00684     if (!RegisterClass(&wnd)) usererror("RegisterClass failed");
00685   }
00686 }
00687 
00688 static bool AllocateDibSection(int w, int h)
00689 {
00690   BITMAPINFO *bi;
00691   HDC dc;
00692   int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00693 
00694   w = max(w, 64);
00695   h = max(h, 64);
00696 
00697   if (bpp == 0) usererror("Can't use a blitter that blits 0 bpp for normal visuals");
00698 
00699   if (w == _screen.width && h == _screen.height) return false;
00700 
00701   _screen.width = w;
00702   _screen.pitch = (bpp == 8) ? Align(w, 4) : w;
00703   _screen.height = h;
00704   bi = (BITMAPINFO*)alloca(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
00705   memset(bi, 0, sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256);
00706   bi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
00707 
00708   bi->bmiHeader.biWidth = _wnd.width = w;
00709   bi->bmiHeader.biHeight = -(_wnd.height = h);
00710 
00711   bi->bmiHeader.biPlanes = 1;
00712   bi->bmiHeader.biBitCount = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00713   bi->bmiHeader.biCompression = BI_RGB;
00714 
00715   if (_wnd.dib_sect) DeleteObject(_wnd.dib_sect);
00716 
00717   dc = GetDC(0);
00718   _wnd.dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID**)&_wnd.buffer_bits, NULL, 0);
00719   if (_wnd.dib_sect == NULL) usererror("CreateDIBSection failed");
00720   ReleaseDC(0, dc);
00721 
00722   return true;
00723 }
00724 
00725 static const Dimension default_resolutions[] = {
00726   {  640,  480 },
00727   {  800,  600 },
00728   { 1024,  768 },
00729   { 1152,  864 },
00730   { 1280,  800 },
00731   { 1280,  960 },
00732   { 1280, 1024 },
00733   { 1400, 1050 },
00734   { 1600, 1200 },
00735   { 1680, 1050 },
00736   { 1920, 1200 }
00737 };
00738 
00739 static void FindResolutions()
00740 {
00741   uint n = 0;
00742 #if defined(WINCE)
00743   /* EnumDisplaySettingsW is only supported in CE 4.2+
00744    * XXX -- One might argue that we assume 4.2+ on every system. Then we can use this function safely */
00745 #else
00746   uint i;
00747   DEVMODEA dm;
00748 
00749   /* XXX - EnumDisplaySettingsW crashes with unicows.dll on Windows95
00750    * Doesn't really matter since we don't pass a string anyways, but still
00751    * a letdown */
00752   for (i = 0; EnumDisplaySettingsA(NULL, i, &dm) != 0; i++) {
00753     if (dm.dmBitsPerPel == BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() &&
00754         dm.dmPelsWidth >= 640 && dm.dmPelsHeight >= 480) {
00755       uint j;
00756 
00757       for (j = 0; j < n; j++) {
00758         if (_resolutions[j].width == dm.dmPelsWidth && _resolutions[j].height == dm.dmPelsHeight) break;
00759       }
00760 
00761       /* In the previous loop we have checked already existing/added resolutions if
00762        * they are the same as the new ones. If this is not the case (j == n); we have
00763        * looped all and found none, add the new one to the list. If we have reached the
00764        * maximum amount of resolutions, then quit querying the display */
00765       if (j == n) {
00766         _resolutions[j].width  = dm.dmPelsWidth;
00767         _resolutions[j].height = dm.dmPelsHeight;
00768         if (++n == lengthof(_resolutions)) break;
00769       }
00770     }
00771   }
00772 #endif
00773 
00774   /* We have found no resolutions, show the default list */
00775   if (n == 0) {
00776     memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
00777     n = lengthof(default_resolutions);
00778   }
00779 
00780   _num_resolutions = n;
00781   SortResolutions(_num_resolutions);
00782 }
00783 
00784 static FVideoDriver_Win32 iFVideoDriver_Win32;
00785 
00786 const char *VideoDriver_Win32::Start(const char * const *parm)
00787 {
00788   memset(&_wnd, 0, sizeof(_wnd));
00789 
00790   RegisterWndClass();
00791 
00792   MakePalette();
00793 
00794   FindResolutions();
00795 
00796   DEBUG(driver, 2, "Resolution for display: %ux%u", _cur_resolution.width, _cur_resolution.height);
00797 
00798   /* fullscreen uses those */
00799   _wnd.width_org  = _cur_resolution.width;
00800   _wnd.height_org = _cur_resolution.height;
00801 
00802   AllocateDibSection(_cur_resolution.width, _cur_resolution.height);
00803   this->MakeWindow(_fullscreen);
00804 
00805   MarkWholeScreenDirty();
00806 
00807   return NULL;
00808 }
00809 
00810 void VideoDriver_Win32::Stop()
00811 {
00812   DeleteObject(_wnd.gdi_palette);
00813   DeleteObject(_wnd.dib_sect);
00814   DestroyWindow(_wnd.main_wnd);
00815 
00816 #if !defined(WINCE)
00817   if (_wnd.fullscreen) ChangeDisplaySettings(NULL, 0);
00818 #endif
00819   MyShowCursor(true);
00820 }
00821 
00822 void VideoDriver_Win32::MakeDirty(int left, int top, int width, int height)
00823 {
00824   RECT r = { left, top, left + width, top + height };
00825 
00826   InvalidateRect(_wnd.main_wnd, &r, FALSE);
00827 }
00828 
00829 static void CheckPaletteAnim()
00830 {
00831   if (_pal_count_dirty == 0) return;
00832 
00833   InvalidateRect(_wnd.main_wnd, NULL, FALSE);
00834 }
00835 
00836 void VideoDriver_Win32::MainLoop()
00837 {
00838   MSG mesg;
00839   uint32 cur_ticks = GetTickCount();
00840   uint32 last_cur_ticks = cur_ticks;
00841   uint32 next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00842 
00843   _wnd.running = true;
00844 
00845   for (;;) {
00846     uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
00847 
00848     while (PeekMessage(&mesg, NULL, 0, 0, PM_REMOVE)) {
00849       InteractiveRandom(); // randomness
00850       TranslateMessage(&mesg);
00851       DispatchMessage(&mesg);
00852     }
00853     if (_exit_game) return;
00854 
00855 #if defined(_DEBUG)
00856     if (_wnd.has_focus && GetAsyncKeyState(VK_SHIFT) < 0 &&
00857 #else
00858     /* Speed up using TAB, but disable for ALT+TAB of course */
00859     if (_wnd.has_focus && GetAsyncKeyState(VK_TAB) < 0 && GetAsyncKeyState(VK_MENU) >= 0 &&
00860 #endif
00861         !_networking && _game_mode != GM_MENU) {
00862       _fast_forward |= 2;
00863     } else if (_fast_forward & 2) {
00864       _fast_forward = 0;
00865     }
00866 
00867     cur_ticks = GetTickCount();
00868     if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode) || cur_ticks < prev_cur_ticks) {
00869       _realtime_tick += cur_ticks - last_cur_ticks;
00870       last_cur_ticks = cur_ticks;
00871       next_tick = cur_ticks + MILLISECONDS_PER_TICK;
00872 
00873       bool old_ctrl_pressed = _ctrl_pressed;
00874 
00875       _ctrl_pressed = _wnd.has_focus && GetAsyncKeyState(VK_CONTROL)<0;
00876       _shift_pressed = _wnd.has_focus && GetAsyncKeyState(VK_SHIFT)<0;
00877 
00878       /* determine which directional keys are down */
00879       if (_wnd.has_focus) {
00880         _dirkeys =
00881           (GetAsyncKeyState(VK_LEFT) < 0 ? 1 : 0) +
00882           (GetAsyncKeyState(VK_UP) < 0 ? 2 : 0) +
00883           (GetAsyncKeyState(VK_RIGHT) < 0 ? 4 : 0) +
00884           (GetAsyncKeyState(VK_DOWN) < 0 ? 8 : 0);
00885       } else {
00886         _dirkeys = 0;
00887       }
00888 
00889       if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
00890 
00891       GameLoop();
00892 
00893       if (_force_full_redraw) MarkWholeScreenDirty();
00894 
00895 #if !defined(WINCE)
00896       GdiFlush();
00897 #endif
00898       _screen.dst_ptr = _wnd.buffer_bits;
00899       UpdateWindows();
00900       CheckPaletteAnim();
00901     } else {
00902       Sleep(1);
00903 #if !defined(WINCE)
00904       GdiFlush();
00905 #endif
00906       _screen.dst_ptr = _wnd.buffer_bits;
00907       NetworkDrawChatMessage();
00908       DrawMouseCursor();
00909     }
00910   }
00911 }
00912 
00913 bool VideoDriver_Win32::ChangeResolution(int w, int h)
00914 {
00915   _wnd.width = _wnd.width_org = w;
00916   _wnd.height = _wnd.height_org = h;
00917 
00918   return this->MakeWindow(_fullscreen); // _wnd.fullscreen screws up ingame resolution switching
00919 }
00920 
00921 bool VideoDriver_Win32::ToggleFullscreen(bool full_screen)
00922 {
00923   return this->MakeWindow(full_screen);
00924 }

Generated on Wed Apr 13 00:47:57 2011 for OpenTTD by  doxygen 1.6.1