vid_sdl.c

   1 /*
   2 Copyright (C) 2003  T. Joseph Carter
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19 #include <SDL.h>
  20 #include <stdio.h>
  21
  22 #include "quakedef.h"
  23
  24 // Tell startup code that we have a client
  25 int cl_available = true;
  26 static int vid_usingmouse;
  27 static int vid_isfullscreen;
  28
  29 static SDL_Surface *screen;
  30
  31 static void IN_Init( void );
  32 static void IN_Shutdown( void );
  33
  34 /////////////////////////
  35 // Input handling
  36 ////
  37 //TODO: Add joystick support
  38 //TODO: Add error checking
  39
  40
  41 //keysym to quake keysym mapping
  42 #define tenoh   0,0,0,0,0, 0,0,0,0,0
  43 #define fiftyoh tenoh, tenoh, tenoh, tenoh, tenoh
  44 #define hundredoh fiftyoh, fiftyoh
  45 static unsigned int tbl_sdltoquake[] =
  46 {
  47         0,0,0,0,                //SDLK_UNKNOWN          = 0,
  48         0,0,0,0,                //SDLK_FIRST            = 0,
  49         K_BACKSPACE,    //SDLK_BACKSPACE        = 8,
  50         K_TAB,                  //SDLK_TAB                      = 9,
  51         0,0,
  52         0,                              //SDLK_CLEAR            = 12,
  53         K_ENTER,                //SDLK_RETURN           = 13,
  54     0,0,0,0,0,
  55         K_PAUSE,                //SDLK_PAUSE            = 19,
  56         0,0,0,0,0,0,0,
  57         K_ESCAPE,               //SDLK_ESCAPE           = 27,
  58         0,0,0,0,
  59         K_SPACE,                //SDLK_SPACE            = 32,
  60         '!',                    //SDLK_EXCLAIM          = 33,
  61         '"',                    //SDLK_QUOTEDBL         = 34,
  62         '#',                    //SDLK_HASH                     = 35,
  63         '$',                    //SDLK_DOLLAR           = 36,
  64         0,
  65         '&',                    //SDLK_AMPERSAND        = 38,
  66         '\'',                   //SDLK_QUOTE            = 39,
  67         '(',                    //SDLK_LEFTPAREN        = 40,
  68         ')',                    //SDLK_RIGHTPAREN       = 41,
  69         '*',                    //SDLK_ASTERISK         = 42,
  70         '+',                    //SDLK_PLUS                     = 43,
  71         ',',                    //SDLK_COMMA            = 44,
  72         '-',                    //SDLK_MINUS            = 45,
  73         '.',                    //SDLK_PERIOD           = 46,
  74         '/',                    //SDLK_SLASH            = 47,
  75         '0',                    //SDLK_0                        = 48,
  76         '1',                    //SDLK_1                        = 49,
  77         '2',                    //SDLK_2                        = 50,
  78         '3',                    //SDLK_3                        = 51,
  79         '4',                    //SDLK_4                        = 52,
  80         '5',                    //SDLK_5                        = 53,
  81         '6',                    //SDLK_6                        = 54,
  82         '7',                    //SDLK_7                        = 55,
  83         '8',                    //SDLK_8                        = 56,
  84         '9',                    //SDLK_9                        = 57,
  85         ':',                    //SDLK_COLON            = 58,
  86         ';',                    //SDLK_SEMICOLON        = 59,
  87         '<',                    //SDLK_LESS                     = 60,
  88         '=',                    //SDLK_EQUALS           = 61,
  89         '>',                    //SDLK_GREATER          = 62,
  90         '?',                    //SDLK_QUESTION         = 63,
  91         '@',                    //SDLK_AT                       = 64,
  92         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  93         '[',            //SDLK_LEFTBRACKET      = 91,
  94         '\\',           //SDLK_BACKSLASH        = 92,
  95         ']',            //SDLK_RIGHTBRACKET     = 93,
  96         '^',            //SDLK_CARET            = 94,
  97         '_',            //SDLK_UNDERSCORE       = 95,
  98         '`',            //SDLK_BACKQUOTE        = 96,
  99         'a',            //SDLK_a                        = 97,
 100         'b',            //SDLK_b                        = 98,
 101         'c',            //SDLK_c                        = 99,
 102         'd',            //SDLK_d                        = 100,
 103         'e',            //SDLK_e                        = 101,
 104         'f',            //SDLK_f                        = 102,
 105         'g',            //SDLK_g                        = 103,
 106         'h',            //SDLK_h                        = 104,
 107         'i',            //SDLK_i                        = 105,
 108         'j',            //SDLK_j                        = 106,
 109         'k',            //SDLK_k                        = 107,
 110         'l',            //SDLK_l                        = 108,
 111         'm',            //SDLK_m                        = 109,
 112         'n',            //SDLK_n                        = 110,
 113         'o',            //SDLK_o                        = 111,
 114         'p',            //SDLK_p                        = 112,
 115         'q',            //SDLK_q                        = 113,
 116         'r',            //SDLK_r                        = 114,
 117         's',            //SDLK_s                        = 115,
 118         't',            //SDLK_t                        = 116,
 119         'u',            //SDLK_u                        = 117,
 120         'v',            //SDLK_v                        = 118,
 121         'w',            //SDLK_w                        = 119,
 122         'x',            //SDLK_x                        = 120,
 123         'y',            //SDLK_y                        = 121,
 124         'z',            //SDLK_z                        = 122,
 125         0,0,0,0,
 126         K_DEL,          //SDLK_DELETE           = 127,
 127         hundredoh /*227*/, tenoh, tenoh, 0,0,0,0,0,0,0,0,
 128         K_KP_0,         //SDLK_KP0              = 256,
 129         K_KP_1,         //SDLK_KP1              = 257,
 130         K_KP_2,         //SDLK_KP2              = 258,
 131         K_KP_3,         //SDLK_KP3              = 259,
 132         K_KP_4,         //SDLK_KP4              = 260,
 133         K_KP_5,         //SDLK_KP5              = 261,
 134         K_KP_6,         //SDLK_KP6              = 262,
 135         K_KP_7,         //SDLK_KP7              = 263,
 136         K_KP_8,         //SDLK_KP8              = 264,
 137         K_KP_9,         //SDLK_KP9              = 265,
 138         K_KP_PERIOD,//SDLK_KP_PERIOD    = 266,
 139         K_KP_DIVIDE,//SDLK_KP_DIVIDE    = 267,
 140         K_KP_MULTIPLY,//SDLK_KP_MULTIPLY= 268,
 141         K_KP_MINUS,     //SDLK_KP_MINUS         = 269,
 142         K_KP_PLUS,      //SDLK_KP_PLUS          = 270,
 143         K_KP_ENTER,     //SDLK_KP_ENTER         = 271,
 144         K_KP_EQUALS,//SDLK_KP_EQUALS    = 272,
 145         K_UPARROW,      //SDLK_UP               = 273,
 146         K_DOWNARROW,//SDLK_DOWN         = 274,
 147         K_RIGHTARROW,//SDLK_RIGHT       = 275,
 148         K_LEFTARROW,//SDLK_LEFT         = 276,
 149         K_INS,          //SDLK_INSERT   = 277,
 150         K_HOME,         //SDLK_HOME             = 278,
 151         K_END,          //SDLK_END              = 279,
 152         K_PGUP,         //SDLK_PAGEUP   = 280,
 153         K_PGDN,         //SDLK_PAGEDOWN = 281,
 154         K_F1,           //SDLK_F1               = 282,
 155         K_F2,           //SDLK_F2               = 283,
 156         K_F3,           //SDLK_F3               = 284,
 157         K_F4,           //SDLK_F4               = 285,
 158         K_F5,           //SDLK_F5               = 286,
 159         K_F6,           //SDLK_F6               = 287,
 160         K_F7,           //SDLK_F7               = 288,
 161         K_F8,           //SDLK_F8               = 289,
 162         K_F9,           //SDLK_F9               = 290,
 163         K_F10,          //SDLK_F10              = 291,
 164         K_F11,          //SDLK_F11              = 292,
 165         K_F12,          //SDLK_F12              = 293,
 166         0,                      //SDLK_F13              = 294,
 167         0,                      //SDLK_F14              = 295,
 168         0,                      //SDLK_F15              = 296,
 169         0,0,0,
 170         K_NUMLOCK,      //SDLK_NUMLOCK  = 300,
 171         K_CAPSLOCK,     //SDLK_CAPSLOCK = 301,
 172         K_SCROLLOCK,//SDLK_SCROLLOCK= 302,
 173         K_SHIFT,        //SDLK_RSHIFT   = 303,
 174         K_SHIFT,        //SDLK_LSHIFT   = 304,
 175         K_CTRL,         //SDLK_RCTRL    = 305,
 176         K_CTRL,         //SDLK_LCTRL    = 306,
 177         K_ALT,          //SDLK_RALT             = 307,
 178         K_ALT,          //SDLK_LALT             = 308,
 179         0,                      //SDLK_RMETA    = 309,
 180         0,                      //SDLK_LMETA    = 310,
 181         0,                      //SDLK_LSUPER   = 311,          /* Left "Windows" key */
 182         0,                      //SDLK_RSUPER   = 312,          /* Right "Windows" key */
 183         0,                      //SDLK_MODE             = 313,          /* "Alt Gr" key */
 184         0,                      //SDLK_COMPOSE  = 314,          /* Multi-key compose key */
 185         0,                      //SDLK_HELP             = 315,
 186         0,                      //SDLK_PRINT    = 316,
 187         0,                      //SDLK_SYSREQ   = 317,
 188         K_PAUSE,        //SDLK_BREAK    = 318,
 189         0,                      //SDLK_MENU             = 319,
 190         0,                      //SDLK_POWER    = 320,          /* Power Macintosh power key */
 191         'e',            //SDLK_EURO             = 321,          /* Some european keyboards */
 192         0                       //SDLK_UNDO             = 322,          /* Atari keyboard has Undo */
 193 };
 194 #undef tenoh
 195 #undef fiftyoh
 196 #undef hundredoh
 197
 198 static int MapKey( int sdlkey )
 199 {
 200         if( sdlkey > sizeof(tbl_sdltoquake)/ sizeof(int) )
 201                 return 0;
 202     return tbl_sdltoquake[ sdlkey ];
 203 }
 204
 205 static void IN_Activate( void )
 206 {
 207         SDL_WM_GrabInput( SDL_GRAB_ON );
 208         SDL_ShowCursor( SDL_DISABLE );
 209 }
 210
 211 static void IN_Deactivate( void )
 212 {
 213         SDL_WM_GrabInput( SDL_GRAB_OFF );
 214         SDL_ShowCursor( SDL_ENABLE );
 215 }
 216
 217 void IN_Commands (void)
 218 {
 219 }
 220
 221 static void IN_MouseMove (usercmd_t *cmd)
 222 {
 223         int x, y;
 224
 225         if( !vid_usingmouse ) {
 226                 IN_Mouse( cmd, 0, 0 );
 227                 return;
 228         }
 229
 230         SDL_GetRelativeMouseState( &x, &y );
 231         IN_Mouse( cmd, x, y );
 232 }
 233
 234 void IN_Move( usercmd_t *cmd )
 235 {
 236         IN_MouseMove( cmd );
 237 }
 238
 239 static void IN_Init( void )
 240 {
 241         // init keyboard
 242         SDL_EnableUNICODE( SDL_ENABLE );
 243
 244         // init mouse
 245         vid_usingmouse = false;
 246 }
 247
 248 static void IN_Shutdown( void )
 249 {
 250 }
 251
 252 /////////////////////
 253 // Message Handling
 254 ////
 255
 256 static int Sys_EventFilter( SDL_Event *event )
 257 {
 258         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 259 #ifdef WIN32
 260         if( event->type == SDL_QUIT && MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO )
 261                 return 0;
 262         else
 263                 return 1;
 264 #else
 265         return 1;
 266 #endif
 267 }
 268
 269 void Sys_SendKeyEvents( void )
 270 {
 271         SDL_Event event;
 272
 273         while( SDL_PollEvent( &event ) )
 274                 switch( event.type ) {
 275                         case SDL_QUIT:
 276                                 Sys_Quit();
 277                                 break;
 278                         case SDL_KEYDOWN:
 279                         case SDL_KEYUP:
 280                                 Key_Event( MapKey( event.key.keysym.sym ), event.key.keysym.unicode, (event.key.state == SDL_PRESSED) );
 281                                 break;
 282                         case SDL_ACTIVEEVENT:
 283                                 if( event.active.state == SDL_APPACTIVE )
 284                                         if( event.active.gain )
 285                                                 vid_hidden = false;
 286                                         else
 287                                                 vid_hidden = true;
 288                                 break;
 289                         case SDL_MOUSEBUTTONDOWN:
 290                                 if( event.button.button == SDL_BUTTON_MIDDLE )
 291                                         event.button.button = SDL_BUTTON_RIGHT;
 292                                 else if( event.button.button == SDL_BUTTON_RIGHT )
 293                                         event.button.button = SDL_BUTTON_MIDDLE;
 294                                 Key_Event( K_MOUSE1 + event.button.button - 1, 0, true );
 295                                 break;
 296                         case SDL_MOUSEBUTTONUP:
 297                                 if( event.button.button == SDL_BUTTON_MIDDLE )
 298                                         event.button.button = SDL_BUTTON_RIGHT;
 299                                 else if( event.button.button == SDL_BUTTON_RIGHT )
 300                                         event.button.button = SDL_BUTTON_MIDDLE;
 301                                 Key_Event( K_MOUSE1 + event.button.button - 1, 0, false );
 302                                 break;
 303                 }
 304 }
 305
 306 /////////////////
 307 // Video system
 308 ////
 309
 310 void *GL_GetProcAddress(const char *name)
 311 {
 312         void *p = NULL;
 313         p = SDL_GL_GetProcAddress(name);
 314         return p;
 315 }
 316
 317 static int Sys_EventFilter( SDL_Event *event );
 318 void VID_Init (void)
 319 {
 320         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 321                 Sys_Error ("Failed to init video: %s\n", SDL_GetError());
 322         vid_isfullscreen = false;
 323
 324         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
 325         IN_Init();
 326 }
 327
 328 // set the icon (we dont use SDL here since it would be too much a PITA)
 329 #ifdef WIN32
 330 #include "resource.h"
 331 #include <SDL_syswm.h>
 332 static void VID_SetCaption()
 333 {
 334     SDL_SysWMinfo       info;
 335         HICON                   icon;
 336
 337         // set the caption
 338         SDL_WM_SetCaption( gamename, NULL );
 339
 340         // get the HWND handle
 341     SDL_VERSION( &info.version );
 342         if( !SDL_GetWMInfo( &info ) )
 343                 return;
 344
 345         //icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 346         icon = LoadIcon( NULL, IDI_ERROR );
 347         SetClassLong( info.window, GCL_HICON, (LONG) icon );
 348 }
 349 #else
 350 static void VID_SetCaption()
 351 {
 352         SDL_WM_SetCaption( gamename, NULL );
 353 }
 354 #endif
 355
 356 static void VID_OutputVersion()
 357 {
 358         const SDL_version *version;
 359         version = SDL_Linked_Version();
 360         Con_DPrintf(    "Linked against SDL version %d.%d.%d\n"
 361                                         "Using SDL library version %d.%d.%d\n",
 362                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
 363                                         version->major, version->minor, version->patch );
 364 }
 365
 366 int VID_InitMode(int fullscreen, int width, int height, int bpp)
 367 {
 368         int i;
 369         int flags = SDL_OPENGL;
 370         const char *drivername;
 371
 372         VID_OutputVersion();
 373
 374         /*
 375         SDL Hack
 376                 We cant switch from one OpenGL video mode to another.
 377                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
 378         */
 379         SDL_SetVideoMode( 0, 0, 0, 0 );
 380
 381 #ifdef WIN32
 382         drivername = "opengl32.dll";
 383 #elif defined(__APPLE__) && defined(__MACH__)
 384         drivername = "OpenGL.framework";
 385 #else
 386         drivername = "libGL.so.1";
 387 #endif
 388
 389         i = COM_CheckParm("-gl_driver");
 390         if (i && i < com_argc - 1)
 391                 drivername = com_argv[i + 1];
 392         if (SDL_GL_LoadLibrary(drivername))
 393         {
 394                 Con_Printf("Unable to load GL driver \"%s\": ", drivername, SDL_GetError());
 395                 return false;
 396         }
 397
 398         qglGetString = GL_GetProcAddress("glGetString");
 399
 400         // Knghtbrd: should do platform-specific extension string function here
 401
 402         if (qglGetString == NULL)
 403         {
 404                 VID_Shutdown();
 405                 Con_Print("Required OpenGL function glGetString not found\n");
 406                 return false;
 407         }
 408
 409         vid_isfullscreen = false;
 410         if (fullscreen) {
 411                 flags |= SDL_FULLSCREEN;
 412                 vid_isfullscreen = true;
 413         }
 414
 415         SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 1);
 416         SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 1);
 417         SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 1);
 418         SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
 419         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
 420
 421         screen = SDL_SetVideoMode(width, height, bpp, flags);
 422         if (screen == NULL)
 423         {
 424                 Con_Printf("Failed to set video mode to %ix%i: %s\n", width, height, SDL_GetError);
 425                 VID_Shutdown();
 426                 return false;
 427         }
 428         VID_SetCaption();
 429
 430         gl_renderer = qglGetString(GL_RENDERER);
 431         gl_vendor = qglGetString(GL_VENDOR);
 432         gl_version = qglGetString(GL_VERSION);
 433         gl_extensions = qglGetString(GL_EXTENSIONS);
 434         gl_platform = "SDL";
 435         // Knghtbrd: should assign platform-specific extensions here
 436         //TODO: maybe ;)
 437         gl_platformextensions = "";
 438         gl_videosyncavailable = false;
 439
 440         GL_Init();
 441
 442         vid_hidden = false;
 443         vid_activewindow = false;
 444         vid_usingmouse = false;
 445         IN_Init();
 446         return true;
 447 }
 448
 449 void VID_Shutdown (void)
 450 {
 451         IN_Shutdown();
 452         SDL_QuitSubSystem(SDL_INIT_VIDEO);
 453 }
 454
 455 int VID_SetGamma (unsigned short *ramps)
 456 {
 457         return !SDL_SetGammaRamp (ramps, ramps + 256, ramps + 512);
 458 }
 459
 460 int VID_GetGamma (unsigned short *ramps)
 461 {
 462         return !SDL_GetGammaRamp( ramps, ramps + 256, ramps + 512);
 463 }
 464
 465 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 466 {
 467         *x = *y = 0;
 468         *width = screen->w;
 469         *height = screen->h;
 470 }
 471
 472 void VID_Finish (void)
 473 {
 474         Uint8 appstate;
 475         int vid_usemouse;
 476
 477         if (r_speeds.integer || gl_finish.integer)
 478                 qglFinish();
 479         SDL_GL_SwapBuffers();
 480
 481         //react on appstate changes
 482         appstate = SDL_GetAppState();
 483
 484         if( !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
 485                 vid_activewindow = false;
 486         else
 487                 vid_activewindow = true;
 488
 489         vid_usemouse = false;
 490         if( vid_mouse.integer && !key_consoleactive )
 491                 vid_usemouse = true;
 492         if( vid_isfullscreen )
 493                 vid_usemouse = true;
 494         if( !vid_activewindow )
 495                 vid_usemouse = false;
 496
 497         if( vid_usemouse && !vid_usingmouse ) {
 498                 vid_usingmouse = true;
 499                 IN_Activate();
 500         } else if( !vid_usemouse && vid_usingmouse ) {
 501                 vid_usingmouse = false;
 502                 IN_Deactivate();
 503         }
 504 }