1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2012 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 19 Sam Lantinga 20 slouken (at) libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 /* Qtopia based framebuffer implementation */ 25 26 #include <unistd.h> 27 28 #include <qapplication.h> 29 #include <qpe/qpeapplication.h> 30 31 #include "SDL_timer.h" 32 33 #include "SDL_QWin.h" 34 35 extern "C" { 36 37 #include "../SDL_sysvideo.h" 38 #include "../../events/SDL_events_c.h" 39 #include "SDL_sysevents_c.h" 40 #include "SDL_sysmouse_c.h" 41 #include "SDL_syswm_c.h" 42 #include "SDL_lowvideo.h" 43 44 //#define QTOPIA_DEBUG 45 #define QT_HIDDEN_SIZE 32 /* starting hidden window size */ 46 47 /* Name of the environment variable used to invert the screen rotation or not: 48 Possible values: 49 !=0 : Screen is 270 rotated 50 0: Screen is 90 rotated*/ 51 #define SDL_QT_ROTATION_ENV_NAME "SDL_QT_INVERT_ROTATION" 52 53 /* Initialization/Query functions */ 54 static int QT_VideoInit(_THIS, SDL_PixelFormat *vformat); 55 static SDL_Rect **QT_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); 56 static SDL_Surface *QT_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); 57 static void QT_UpdateMouse(_THIS); 58 static int QT_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); 59 static void QT_VideoQuit(_THIS); 60 61 /* Hardware surface functions */ 62 static int QT_AllocHWSurface(_THIS, SDL_Surface *surface); 63 static int QT_LockHWSurface(_THIS, SDL_Surface *surface); 64 static void QT_UnlockHWSurface(_THIS, SDL_Surface *surface); 65 static void QT_FreeHWSurface(_THIS, SDL_Surface *surface); 66 67 static int QT_ToggleFullScreen(_THIS, int fullscreen); 68 69 static int QT_IconifyWindow(_THIS); 70 static SDL_GrabMode QT_GrabInput(_THIS, SDL_GrabMode mode); 71 72 /* FB driver bootstrap functions */ 73 74 static int QT_Available(void) 75 { 76 return(1); 77 } 78 79 static void QT_DeleteDevice(SDL_VideoDevice *device) 80 { 81 SDL_free(device->hidden); 82 SDL_free(device); 83 } 84 85 static SDL_VideoDevice *QT_CreateDevice(int devindex) 86 { 87 SDL_VideoDevice *device; 88 89 /* Initialize all variables that we clean on shutdown */ 90 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); 91 if ( device ) { 92 SDL_memset(device, 0, (sizeof *device)); 93 device->hidden = (struct SDL_PrivateVideoData *) 94 SDL_malloc((sizeof *device->hidden)); 95 } 96 if ( (device == NULL) || (device->hidden == NULL) ) { 97 SDL_OutOfMemory(); 98 if ( device ) { 99 SDL_free(device); 100 } 101 return(0); 102 } 103 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); 104 105 /* Set the function pointers */ 106 device->VideoInit = QT_VideoInit; 107 device->ListModes = QT_ListModes; 108 device->SetVideoMode = QT_SetVideoMode; 109 device->UpdateMouse = QT_UpdateMouse; 110 device->SetColors = QT_SetColors; 111 device->UpdateRects = NULL; 112 device->VideoQuit = QT_VideoQuit; 113 device->AllocHWSurface = QT_AllocHWSurface; 114 device->CheckHWBlit = NULL; 115 device->FillHWRect = NULL; 116 device->SetHWColorKey = NULL; 117 device->SetHWAlpha = NULL; 118 device->LockHWSurface = QT_LockHWSurface; 119 device->UnlockHWSurface = QT_UnlockHWSurface; 120 device->FlipHWSurface = NULL; 121 device->FreeHWSurface = QT_FreeHWSurface; 122 device->SetIcon = NULL; 123 device->SetCaption = QT_SetWMCaption; 124 device->IconifyWindow = QT_IconifyWindow; 125 device->GrabInput = QT_GrabInput; 126 device->GetWMInfo = NULL; 127 device->FreeWMCursor = QT_FreeWMCursor; 128 device->CreateWMCursor = QT_CreateWMCursor; 129 device->ShowWMCursor = QT_ShowWMCursor; 130 device->WarpWMCursor = QT_WarpWMCursor; 131 device->InitOSKeymap = QT_InitOSKeymap; 132 device->PumpEvents = QT_PumpEvents; 133 134 device->free = QT_DeleteDevice; 135 device->ToggleFullScreen = QT_ToggleFullScreen; 136 137 /* Set the driver flags */ 138 device->handles_any_size = 0; 139 140 return device; 141 } 142 143 VideoBootStrap Qtopia_bootstrap = { 144 "qtopia", "Qtopia / QPE graphics", 145 QT_Available, QT_CreateDevice 146 }; 147 148 /* Function to sort the display_list */ 149 static int CompareModes(const void *A, const void *B) 150 { 151 #if 0 152 const display_mode *a = (display_mode *)A; 153 const display_mode *b = (display_mode *)B; 154 155 if ( a->space == b->space ) { 156 return((b->virtual_width*b->virtual_height)- 157 (a->virtual_width*a->virtual_height)); 158 } else { 159 return(ColorSpaceToBitsPerPixel(b->space)- 160 ColorSpaceToBitsPerPixel(a->space)); 161 } 162 #endif 163 return 0; 164 } 165 166 /* Yes, this isn't the fastest it could be, but it works nicely */ 167 static int QT_AddMode(_THIS, int index, unsigned int w, unsigned int h) 168 { 169 SDL_Rect *mode; 170 int i; 171 int next_mode; 172 173 /* Check to see if we already have this mode */ 174 if ( SDL_nummodes[index] > 0 ) { 175 for ( i=SDL_nummodes[index]-1; i >= 0; --i ) { 176 mode = SDL_modelist[index][i]; 177 if ( (mode->w == w) && (mode->h == h) ) { 178 return(0); 179 } 180 } 181 } 182 183 /* Set up the new video mode rectangle */ 184 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); 185 if ( mode == NULL ) { 186 SDL_OutOfMemory(); 187 return(-1); 188 } 189 mode->x = 0; 190 mode->y = 0; 191 mode->w = w; 192 mode->h = h; 193 #ifdef QTOPIA_DEBUG 194 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); 195 #endif 196 197 /* Allocate the new list of modes, and fill in the new mode */ 198 next_mode = SDL_nummodes[index]; 199 SDL_modelist[index] = (SDL_Rect **) 200 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); 201 if ( SDL_modelist[index] == NULL ) { 202 SDL_OutOfMemory(); 203 SDL_nummodes[index] = 0; 204 SDL_free(mode); 205 return(-1); 206 } 207 SDL_modelist[index][next_mode] = mode; 208 SDL_modelist[index][next_mode+1] = NULL; 209 SDL_nummodes[index]++; 210 211 return(0); 212 } 213 214 int QT_VideoInit(_THIS, SDL_PixelFormat *vformat) 215 { 216 /* Initialize the QPE Application */ 217 /* Determine the screen depth */ 218 vformat->BitsPerPixel = QPixmap::defaultDepth(); 219 220 // For now we hardcode the current depth because anything else 221 // might as well be emulated by SDL rather than by Qtopia. 222 223 QSize desktop_size = qApp->desktop()->size(); 224 QT_AddMode(_this, ((vformat->BitsPerPixel+7)/8)-1, 225 desktop_size.width(), desktop_size.height()); 226 QT_AddMode(_this, ((vformat->BitsPerPixel+7)/8)-1, 227 desktop_size.height(), desktop_size.width()); 228 229 /* Determine the current screen size */ 230 _this->info.current_w = desktop_size.width(); 231 _this->info.current_h = desktop_size.height(); 232 233 /* Create the window / widget */ 234 SDL_Win = new SDL_QWin(QSize(QT_HIDDEN_SIZE, QT_HIDDEN_SIZE)); 235 ((QPEApplication*)qApp)->showMainWidget(SDL_Win); 236 /* Fill in some window manager capabilities */ 237 _this->info.wm_available = 0; 238 239 /* We're done! */ 240 return(0); 241 } 242 243 /* We support any dimension at our bit-depth */ 244 SDL_Rect **QT_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) 245 { 246 SDL_Rect **modes; 247 248 modes = ((SDL_Rect **)0); 249 if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { 250 modes = SDL_modelist[((format->BitsPerPixel+7)/8)-1]; 251 } else { 252 if ( format->BitsPerPixel == 253 _this->screen->format->BitsPerPixel ) { 254 modes = ((SDL_Rect **)-1); 255 } 256 } 257 return(modes); 258 } 259 260 /* Various screen update functions available */ 261 static void QT_NormalUpdate(_THIS, int numrects, SDL_Rect *rects); 262 263 264 static int QT_SetFullScreen(_THIS, SDL_Surface *screen, int fullscreen) 265 { 266 return -1; 267 } 268 269 static int QT_ToggleFullScreen(_THIS, int fullscreen) 270 { 271 return -1; 272 } 273 274 /* FIXME: check return values and cleanup here */ 275 SDL_Surface *QT_SetVideoMode(_THIS, SDL_Surface *current, 276 int width, int height, int bpp, Uint32 flags) 277 { 278 279 QImage *qimage; 280 QSize desktop_size = qApp->desktop()->size(); 281 282 283 current->flags = 0; //SDL_FULLSCREEN; // We always run fullscreen. 284 285 if(width <= desktop_size.width() 286 && height <= desktop_size.height()) { 287 current->w = desktop_size.width(); 288 current->h = desktop_size.height(); 289 } else if(width <= desktop_size.height() && height <= desktop_size.width()) { 290 // Landscape mode 291 char * envString = SDL_getenv(SDL_QT_ROTATION_ENV_NAME); 292 int envValue = envString ? atoi(envString) : 0; 293 screenRotation = envValue ? SDL_QT_ROTATION_270 : SDL_QT_ROTATION_90; 294 current->h = desktop_size.width(); 295 current->w = desktop_size.height(); 296 } else { 297 SDL_SetError("Unsupported resolution, %dx%d\n", width, height); 298 } 299 if ( flags & SDL_OPENGL ) { 300 SDL_SetError("OpenGL not supported"); 301 return(NULL); 302 } 303 /* Create the QImage framebuffer */ 304 qimage = new QImage(current->w, current->h, bpp); 305 if (qimage->isNull()) { 306 SDL_SetError("Couldn't create screen bitmap"); 307 delete qimage; 308 return(NULL); 309 } 310 current->pitch = qimage->bytesPerLine(); 311 current->pixels = (void *)qimage->bits(); 312 SDL_Win->setImage(qimage); 313 _this->UpdateRects = QT_NormalUpdate; 314 SDL_Win->setFullscreen(true); 315 /* We're done */ 316 return(current); 317 } 318 319 /* Update the current mouse state and position */ 320 void QT_UpdateMouse(_THIS) 321 { 322 QPoint point(-1, -1); 323 if ( SDL_Win->isActiveWindow() ) { 324 point = SDL_Win->mousePos(); 325 } 326 327 if ( (point.x() >= 0) && (point.x() < SDL_VideoSurface->w) && 328 (point.y() >= 0) && (point.y() < SDL_VideoSurface->h) ) { 329 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); 330 SDL_PrivateMouseMotion(0, 0, 331 (Sint16)point.x(), (Sint16)point.y()); 332 } else { 333 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); 334 } 335 } 336 337 /* We don't actually allow hardware surfaces other than the main one */ 338 static int QT_AllocHWSurface(_THIS, SDL_Surface *surface) 339 { 340 return(-1); 341 } 342 static void QT_FreeHWSurface(_THIS, SDL_Surface *surface) 343 { 344 return; 345 } 346 static int QT_LockHWSurface(_THIS, SDL_Surface *surface) 347 { 348 return(0); 349 } 350 static void QT_UnlockHWSurface(_THIS, SDL_Surface *surface) 351 { 352 return; 353 } 354 355 static void QT_NormalUpdate(_THIS, int numrects, SDL_Rect *rects) 356 { 357 if(SDL_Win->lockScreen()) { 358 for(int i=0; i<numrects; ++i ) { 359 QRect rect(rects[i].x, rects[i].y, 360 rects[i].w, rects[i].h); 361 SDL_Win->repaintRect(rect); 362 } 363 SDL_Win->unlockScreen(); 364 } 365 } 366 /* Is the system palette settable? */ 367 int QT_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) 368 { 369 return -1; 370 } 371 372 void QT_VideoQuit(_THIS) 373 { 374 // This is dumb, but if I free this, the app doesn't exit correctly. 375 // Of course, this will leak memory if init video is done more than once. 376 // Sucks but such is life. 377 378 // -- David Hedbor 379 // delete SDL_Win; 380 // SDL_Win = 0; 381 _this->screen->pixels = NULL; 382 QT_GrabInput(_this, SDL_GRAB_OFF); 383 } 384 385 static int QT_IconifyWindow(_THIS) { 386 SDL_Win->hide(); 387 388 return true; 389 } 390 391 static SDL_GrabMode QT_GrabInput(_THIS, SDL_GrabMode mode) { 392 if(mode == SDL_GRAB_OFF) { 393 QPEApplication::grabKeyboard(); 394 qApp->processEvents(); 395 QPEApplication::ungrabKeyboard(); 396 } else { 397 QPEApplication::grabKeyboard(); 398 } 399 qApp->processEvents(); 400 return mode; 401 } 402 403 }; /* Extern C */ 404
