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 #undef WIN32_LEAN_AND_MEAN  //hush a warning, SDL.h redefines this
  20 #include <SDL.h>
  21 #include <stdio.h>
  22
  23 #include "quakedef.h"
  24
  25 // Tell startup code that we have a client
  26 int cl_available = true;
  27
  28 qboolean vid_supportrefreshrate = false;
  29
  30 cvar_t joy_detected = {CVAR_READONLY, "joy_detected", "0", "number of joysticks detected by engine"};
  31 cvar_t joy_enable = {CVAR_SAVE, "joy_enable", "0", "enables joystick support"};
  32 cvar_t joy_index = {0, "joy_index", "0", "selects which joystick to use if you have multiple"};
  33 cvar_t joy_axisforward = {0, "joy_axisforward", "1", "which joystick axis to query for forward/backward movement"};
  34 cvar_t joy_axisside = {0, "joy_axisside", "0", "which joystick axis to query for right/left movement"};
  35 cvar_t joy_axisup = {0, "joy_axisup", "-1", "which joystick axis to query for up/down movement"};
  36 cvar_t joy_axispitch = {0, "joy_axispitch", "3", "which joystick axis to query for looking up/down"};
  37 cvar_t joy_axisyaw = {0, "joy_axisyaw", "2", "which joystick axis to query for looking right/left"};
  38 cvar_t joy_axisroll = {0, "joy_axisroll", "-1", "which joystick axis to query for tilting head right/left"};
  39 cvar_t joy_deadzoneforward = {0, "joy_deadzoneforward", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  40 cvar_t joy_deadzoneside = {0, "joy_deadzoneside", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  41 cvar_t joy_deadzoneup = {0, "joy_deadzoneup", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  42 cvar_t joy_deadzonepitch = {0, "joy_deadzonepitch", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  43 cvar_t joy_deadzoneyaw = {0, "joy_deadzoneyaw", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  44 cvar_t joy_deadzoneroll = {0, "joy_deadzoneroll", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  45 cvar_t joy_sensitivityforward = {0, "joy_sensitivityforward", "-1", "movement multiplier"};
  46 cvar_t joy_sensitivityside = {0, "joy_sensitivityside", "1", "movement multiplier"};
  47 cvar_t joy_sensitivityup = {0, "joy_sensitivityup", "1", "movement multiplier"};
  48 cvar_t joy_sensitivitypitch = {0, "joy_sensitivitypitch", "1", "movement multiplier"};
  49 cvar_t joy_sensitivityyaw = {0, "joy_sensitivityyaw", "-1", "movement multiplier"};
  50 cvar_t joy_sensitivityroll = {0, "joy_sensitivityroll", "1", "movement multiplier"};
  51
  52 static qboolean vid_usingmouse;
  53 static qboolean vid_isfullscreen;
  54 static int vid_numjoysticks = 0;
  55 #define MAX_JOYSTICKS 8
  56 static SDL_Joystick *vid_joysticks[MAX_JOYSTICKS];
  57
  58 static int win_half_width = 50;
  59 static int win_half_height = 50;
  60 static int video_bpp, video_flags;
  61
  62 static SDL_Surface *screen;
  63
  64 /////////////////////////
  65 // Input handling
  66 ////
  67 //TODO: Add joystick support
  68 //TODO: Add error checking
  69
  70
  71 //keysym to quake keysym mapping
  72 #define tenoh   0,0,0,0,0, 0,0,0,0,0
  73 #define fiftyoh tenoh, tenoh, tenoh, tenoh, tenoh
  74 #define hundredoh fiftyoh, fiftyoh
  75 static unsigned int tbl_sdltoquake[] =
  76 {
  77         0,0,0,0,                //SDLK_UNKNOWN          = 0,
  78         0,0,0,0,                //SDLK_FIRST            = 0,
  79         K_BACKSPACE,    //SDLK_BACKSPACE        = 8,
  80         K_TAB,                  //SDLK_TAB                      = 9,
  81         0,0,
  82         0,                              //SDLK_CLEAR            = 12,
  83         K_ENTER,                //SDLK_RETURN           = 13,
  84     0,0,0,0,0,
  85         K_PAUSE,                //SDLK_PAUSE            = 19,
  86         0,0,0,0,0,0,0,
  87         K_ESCAPE,               //SDLK_ESCAPE           = 27,
  88         0,0,0,0,
  89         K_SPACE,                //SDLK_SPACE            = 32,
  90         '!',                    //SDLK_EXCLAIM          = 33,
  91         '"',                    //SDLK_QUOTEDBL         = 34,
  92         '#',                    //SDLK_HASH                     = 35,
  93         '$',                    //SDLK_DOLLAR           = 36,
  94         0,
  95         '&',                    //SDLK_AMPERSAND        = 38,
  96         '\'',                   //SDLK_QUOTE            = 39,
  97         '(',                    //SDLK_LEFTPAREN        = 40,
  98         ')',                    //SDLK_RIGHTPAREN       = 41,
  99         '*',                    //SDLK_ASTERISK         = 42,
 100         '+',                    //SDLK_PLUS                     = 43,
 101         ',',                    //SDLK_COMMA            = 44,
 102         '-',                    //SDLK_MINUS            = 45,
 103         '.',                    //SDLK_PERIOD           = 46,
 104         '/',                    //SDLK_SLASH            = 47,
 105         '0',                    //SDLK_0                        = 48,
 106         '1',                    //SDLK_1                        = 49,
 107         '2',                    //SDLK_2                        = 50,
 108         '3',                    //SDLK_3                        = 51,
 109         '4',                    //SDLK_4                        = 52,
 110         '5',                    //SDLK_5                        = 53,
 111         '6',                    //SDLK_6                        = 54,
 112         '7',                    //SDLK_7                        = 55,
 113         '8',                    //SDLK_8                        = 56,
 114         '9',                    //SDLK_9                        = 57,
 115         ':',                    //SDLK_COLON            = 58,
 116         ';',                    //SDLK_SEMICOLON        = 59,
 117         '<',                    //SDLK_LESS                     = 60,
 118         '=',                    //SDLK_EQUALS           = 61,
 119         '>',                    //SDLK_GREATER          = 62,
 120         '?',                    //SDLK_QUESTION         = 63,
 121         '@',                    //SDLK_AT                       = 64,
 122         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,
 123         '[',            //SDLK_LEFTBRACKET      = 91,
 124         '\\',           //SDLK_BACKSLASH        = 92,
 125         ']',            //SDLK_RIGHTBRACKET     = 93,
 126         '^',            //SDLK_CARET            = 94,
 127         '_',            //SDLK_UNDERSCORE       = 95,
 128         '`',            //SDLK_BACKQUOTE        = 96,
 129         'a',            //SDLK_a                        = 97,
 130         'b',            //SDLK_b                        = 98,
 131         'c',            //SDLK_c                        = 99,
 132         'd',            //SDLK_d                        = 100,
 133         'e',            //SDLK_e                        = 101,
 134         'f',            //SDLK_f                        = 102,
 135         'g',            //SDLK_g                        = 103,
 136         'h',            //SDLK_h                        = 104,
 137         'i',            //SDLK_i                        = 105,
 138         'j',            //SDLK_j                        = 106,
 139         'k',            //SDLK_k                        = 107,
 140         'l',            //SDLK_l                        = 108,
 141         'm',            //SDLK_m                        = 109,
 142         'n',            //SDLK_n                        = 110,
 143         'o',            //SDLK_o                        = 111,
 144         'p',            //SDLK_p                        = 112,
 145         'q',            //SDLK_q                        = 113,
 146         'r',            //SDLK_r                        = 114,
 147         's',            //SDLK_s                        = 115,
 148         't',            //SDLK_t                        = 116,
 149         'u',            //SDLK_u                        = 117,
 150         'v',            //SDLK_v                        = 118,
 151         'w',            //SDLK_w                        = 119,
 152         'x',            //SDLK_x                        = 120,
 153         'y',            //SDLK_y                        = 121,
 154         'z',            //SDLK_z                        = 122,
 155         0,0,0,0,
 156         K_DEL,          //SDLK_DELETE           = 127,
 157         hundredoh /*227*/, tenoh, tenoh, 0,0,0,0,0,0,0,0,
 158         K_KP_0,         //SDLK_KP0              = 256,
 159         K_KP_1,         //SDLK_KP1              = 257,
 160         K_KP_2,         //SDLK_KP2              = 258,
 161         K_KP_3,         //SDLK_KP3              = 259,
 162         K_KP_4,         //SDLK_KP4              = 260,
 163         K_KP_5,         //SDLK_KP5              = 261,
 164         K_KP_6,         //SDLK_KP6              = 262,
 165         K_KP_7,         //SDLK_KP7              = 263,
 166         K_KP_8,         //SDLK_KP8              = 264,
 167         K_KP_9,         //SDLK_KP9              = 265,
 168         K_KP_PERIOD,//SDLK_KP_PERIOD    = 266,
 169         K_KP_DIVIDE,//SDLK_KP_DIVIDE    = 267,
 170         K_KP_MULTIPLY,//SDLK_KP_MULTIPLY= 268,
 171         K_KP_MINUS,     //SDLK_KP_MINUS         = 269,
 172         K_KP_PLUS,      //SDLK_KP_PLUS          = 270,
 173         K_KP_ENTER,     //SDLK_KP_ENTER         = 271,
 174         K_KP_EQUALS,//SDLK_KP_EQUALS    = 272,
 175         K_UPARROW,      //SDLK_UP               = 273,
 176         K_DOWNARROW,//SDLK_DOWN         = 274,
 177         K_RIGHTARROW,//SDLK_RIGHT       = 275,
 178         K_LEFTARROW,//SDLK_LEFT         = 276,
 179         K_INS,          //SDLK_INSERT   = 277,
 180         K_HOME,         //SDLK_HOME             = 278,
 181         K_END,          //SDLK_END              = 279,
 182         K_PGUP,         //SDLK_PAGEUP   = 280,
 183         K_PGDN,         //SDLK_PAGEDOWN = 281,
 184         K_F1,           //SDLK_F1               = 282,
 185         K_F2,           //SDLK_F2               = 283,
 186         K_F3,           //SDLK_F3               = 284,
 187         K_F4,           //SDLK_F4               = 285,
 188         K_F5,           //SDLK_F5               = 286,
 189         K_F6,           //SDLK_F6               = 287,
 190         K_F7,           //SDLK_F7               = 288,
 191         K_F8,           //SDLK_F8               = 289,
 192         K_F9,           //SDLK_F9               = 290,
 193         K_F10,          //SDLK_F10              = 291,
 194         K_F11,          //SDLK_F11              = 292,
 195         K_F12,          //SDLK_F12              = 293,
 196         0,                      //SDLK_F13              = 294,
 197         0,                      //SDLK_F14              = 295,
 198         0,                      //SDLK_F15              = 296,
 199         0,0,0,
 200         K_NUMLOCK,      //SDLK_NUMLOCK  = 300,
 201         K_CAPSLOCK,     //SDLK_CAPSLOCK = 301,
 202         K_SCROLLOCK,//SDLK_SCROLLOCK= 302,
 203         K_SHIFT,        //SDLK_RSHIFT   = 303,
 204         K_SHIFT,        //SDLK_LSHIFT   = 304,
 205         K_CTRL,         //SDLK_RCTRL    = 305,
 206         K_CTRL,         //SDLK_LCTRL    = 306,
 207         K_ALT,          //SDLK_RALT             = 307,
 208         K_ALT,          //SDLK_LALT             = 308,
 209         0,                      //SDLK_RMETA    = 309,
 210         0,                      //SDLK_LMETA    = 310,
 211         0,                      //SDLK_LSUPER   = 311,          /* Left "Windows" key */
 212         0,                      //SDLK_RSUPER   = 312,          /* Right "Windows" key */
 213         K_ALT,                  //SDLK_MODE             = 313,          /* "Alt Gr" key */
 214         0,                      //SDLK_COMPOSE  = 314,          /* Multi-key compose key */
 215         0,                      //SDLK_HELP             = 315,
 216         0,                      //SDLK_PRINT    = 316,
 217         0,                      //SDLK_SYSREQ   = 317,
 218         K_PAUSE,        //SDLK_BREAK    = 318,
 219         0,                      //SDLK_MENU             = 319,
 220         0,                      //SDLK_POWER    = 320,          /* Power Macintosh power key */
 221         'e',            //SDLK_EURO             = 321,          /* Some european keyboards */
 222         0                       //SDLK_UNDO             = 322,          /* Atari keyboard has Undo */
 223 };
 224 #undef tenoh
 225 #undef fiftyoh
 226 #undef hundredoh
 227
 228 static int MapKey( unsigned int sdlkey )
 229 {
 230         if( sdlkey > sizeof(tbl_sdltoquake)/ sizeof(int) )
 231                 return 0;
 232     return tbl_sdltoquake[ sdlkey ];
 233 }
 234
 235 static void IN_Activate( qboolean grab )
 236 {
 237         //SDL_WM_GrabInput( SDL_GRAB_OFF );
 238         //Con_Printf("< Turning off input-grabbing. --blub\n");
 239         if (grab)
 240         {
 241                 if (!vid_usingmouse)
 242                 {
 243                         vid_usingmouse = true;
 244                         cl_ignoremousemoves = 2;
 245                         SDL_WM_GrabInput( SDL_GRAB_ON );
 246                         SDL_ShowCursor( SDL_DISABLE );
 247                 }
 248         }
 249         else
 250         {
 251                 if (vid_usingmouse)
 252                 {
 253                         vid_usingmouse = false;
 254                         cl_ignoremousemoves = 2;
 255                         SDL_WM_GrabInput( SDL_GRAB_OFF );
 256                         SDL_ShowCursor( SDL_ENABLE );
 257                 }
 258         }
 259 }
 260
 261 static double IN_JoystickGetAxis(SDL_Joystick *joy, int axis, double sensitivity, double deadzone)
 262 {
 263         double value;
 264         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 265                 return 0; // no such axis on this joystick
 266         value = SDL_JoystickGetAxis(joy, axis) * (1.0 / 32767.0);
 267         value = bound(-1, value, 1);
 268         if (fabs(value) < deadzone)
 269                 return 0; // within deadzone around center
 270         return value * sensitivity;
 271 }
 272
 273 void IN_Move( void )
 274 {
 275         int j;
 276         static int old_x = 0, old_y = 0;
 277         static int stuck = 0;
 278         int x, y;
 279         if( vid_usingmouse )
 280         {
 281                 if(vid_stick_mouse.integer)
 282                 {
 283                         // have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
 284                         // window grabbing. --blub
 285
 286                         // we need 2 frames to initialize the center position
 287                         if(!stuck)
 288                         {
 289                                 SDL_WarpMouse(win_half_width, win_half_height);
 290                                 SDL_GetMouseState(&x, &y);
 291                                 SDL_GetRelativeMouseState(&x, &y);
 292                                 ++stuck;
 293                         } else {
 294                                 SDL_GetRelativeMouseState(&x, &y);
 295                                 in_mouse_x = x + old_x;
 296                                 in_mouse_y = y + old_y;
 297                                 SDL_GetMouseState(&x, &y);
 298                                 old_x = x - win_half_width;
 299                                 old_y = y - win_half_height;
 300                                 SDL_WarpMouse(win_half_width, win_half_height);
 301                         }
 302                 } else {
 303                         SDL_GetRelativeMouseState( &x, &y );
 304                         in_mouse_x = x;
 305                         in_mouse_y = y;
 306                 }
 307         }
 308         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 309         {
 310                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 311                 int numballs = SDL_JoystickNumBalls(joy);
 312                 for (j = 0;j < numballs;j++)
 313                 {
 314                         SDL_JoystickGetBall(joy, j, &x, &y);
 315                         in_mouse_x += x;
 316                         in_mouse_y += y;
 317                 }
 318                 cl.cmd.forwardmove += IN_JoystickGetAxis(joy, joy_axisforward.integer, joy_sensitivityforward.value, joy_deadzoneforward.value) * cl_forwardspeed.value;
 319                 cl.cmd.sidemove    += IN_JoystickGetAxis(joy, joy_axisside.integer, joy_sensitivityside.value, joy_deadzoneside.value) * cl_sidespeed.value;
 320                 cl.cmd.upmove      += IN_JoystickGetAxis(joy, joy_axisup.integer, joy_sensitivityup.value, joy_deadzoneup.value) * cl_upspeed.value;
 321                 cl.viewangles[0]   += IN_JoystickGetAxis(joy, joy_axispitch.integer, joy_sensitivitypitch.value, joy_deadzonepitch.value) * cl.realframetime * cl_pitchspeed.value;
 322                 cl.viewangles[1]   += IN_JoystickGetAxis(joy, joy_axisyaw.integer, joy_sensitivityyaw.value, joy_deadzoneyaw.value) * cl.realframetime * cl_yawspeed.value;
 323                 //cl.viewangles[2]   += IN_JoystickGetAxis(joy, joy_axisroll.integer, joy_sensitivityroll.value, joy_deadzoneroll.value) * cl.realframetime * cl_rollspeed.value;
 324         }
 325 }
 326
 327 /////////////////////
 328 // Message Handling
 329 ////
 330
 331 static int Sys_EventFilter( SDL_Event *event )
 332 {
 333         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 334         if (event->type == SDL_QUIT)
 335         {
 336 #ifdef WIN32
 337                 if (MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO)
 338                         return 0;
 339 #endif
 340         }
 341         return 1;
 342 }
 343
 344 static keynum_t buttonremap[18] =
 345 {
 346         K_MOUSE1,
 347         K_MOUSE3,
 348         K_MOUSE2,
 349         K_MWHEELUP,
 350         K_MWHEELDOWN,
 351         K_MOUSE4,
 352         K_MOUSE5,
 353         K_MOUSE6,
 354         K_MOUSE7,
 355         K_MOUSE8,
 356         K_MOUSE9,
 357         K_MOUSE10,
 358         K_MOUSE11,
 359         K_MOUSE12,
 360         K_MOUSE13,
 361         K_MOUSE14,
 362         K_MOUSE15,
 363         K_MOUSE16,
 364 };
 365
 366 void Sys_SendKeyEvents( void )
 367 {
 368         static qboolean sound_active = true;
 369         SDL_Event event;
 370
 371         while( SDL_PollEvent( &event ) )
 372                 switch( event.type ) {
 373                         case SDL_QUIT:
 374                                 Sys_Quit(0);
 375                                 break;
 376                         case SDL_KEYDOWN:
 377                         case SDL_KEYUP:
 378                                 Key_Event( MapKey( event.key.keysym.sym ), (char)event.key.keysym.unicode, (event.key.state == SDL_PRESSED) );
 379                                 break;
 380                         case SDL_ACTIVEEVENT:
 381                                 if( event.active.state == SDL_APPACTIVE )
 382                                 {
 383                                         if( event.active.gain )
 384                                                 vid_hidden = false;
 385                                         else
 386                                                 vid_hidden = true;
 387                                 }
 388                                 break;
 389                         case SDL_MOUSEBUTTONDOWN:
 390                         case SDL_MOUSEBUTTONUP:
 391                                 if (event.button.button <= 18)
 392                                         Key_Event( buttonremap[event.button.button - 1], 0, event.button.state == SDL_PRESSED );
 393                                 break;
 394                         case SDL_JOYBUTTONDOWN:
 395                                 if (!joy_enable.integer)
 396                                         break; // ignore down events if joystick has been disabled
 397                         case SDL_JOYBUTTONUP:
 398                                 if (event.jbutton.button < 48)
 399                                         Key_Event( event.jbutton.button + (event.jbutton.button < 16 ? K_JOY1 : K_AUX1 - 16), 0, (event.jbutton.state == SDL_PRESSED) );
 400                                 break;
 401                         case SDL_VIDEORESIZE:
 402                                 if(vid_resizable.integer < 2)
 403                                 {
 404                                         vid.width = event.resize.w;
 405                                         vid.height = event.resize.h;
 406                                         SDL_SetVideoMode(vid.width, vid.height, video_bpp, video_flags);
 407                                 }
 408                                 break;
 409                 }
 410
 411         // enable/disable sound on focus gain/loss
 412         if (!vid_hidden && (vid_activewindow || !snd_mutewhenidle.integer))
 413         {
 414                 if (!sound_active)
 415                 {
 416                         S_UnblockSound ();
 417                         sound_active = true;
 418                 }
 419         }
 420         else
 421         {
 422                 if (sound_active)
 423                 {
 424                         S_BlockSound ();
 425                         sound_active = false;
 426                 }
 427         }
 428 }
 429
 430 /////////////////
 431 // Video system
 432 ////
 433
 434 void *GL_GetProcAddress(const char *name)
 435 {
 436         void *p = NULL;
 437         p = SDL_GL_GetProcAddress(name);
 438         return p;
 439 }
 440
 441 static int Sys_EventFilter( SDL_Event *event );
 442 static qboolean vid_sdl_initjoysticksystem = false;
 443 void VID_Init (void)
 444 {
 445         Cvar_RegisterVariable(&joy_detected);
 446         Cvar_RegisterVariable(&joy_enable);
 447         Cvar_RegisterVariable(&joy_index);
 448         Cvar_RegisterVariable(&joy_axisforward);
 449         Cvar_RegisterVariable(&joy_axisside);
 450         Cvar_RegisterVariable(&joy_axisup);
 451         Cvar_RegisterVariable(&joy_axispitch);
 452         Cvar_RegisterVariable(&joy_axisyaw);
 453         //Cvar_RegisterVariable(&joy_axisroll);
 454         Cvar_RegisterVariable(&joy_deadzoneforward);
 455         Cvar_RegisterVariable(&joy_deadzoneside);
 456         Cvar_RegisterVariable(&joy_deadzoneup);
 457         Cvar_RegisterVariable(&joy_deadzonepitch);
 458         Cvar_RegisterVariable(&joy_deadzoneyaw);
 459         //Cvar_RegisterVariable(&joy_deadzoneroll);
 460         Cvar_RegisterVariable(&joy_sensitivityforward);
 461         Cvar_RegisterVariable(&joy_sensitivityside);
 462         Cvar_RegisterVariable(&joy_sensitivityup);
 463         Cvar_RegisterVariable(&joy_sensitivitypitch);
 464         Cvar_RegisterVariable(&joy_sensitivityyaw);
 465         //Cvar_RegisterVariable(&joy_sensitivityroll);
 466
 467         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 468                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
 469         vid_sdl_initjoysticksystem = SDL_Init(SDL_INIT_JOYSTICK) >= 0;
 470         if (vid_sdl_initjoysticksystem)
 471                 Con_Printf("Failed to init SDL joystick subsystem: %s\n", SDL_GetError());
 472         vid_isfullscreen = false;
 473 }
 474
 475 // set the icon (we dont use SDL here since it would be too much a PITA)
 476 #ifdef WIN32
 477 #include "resource.h"
 478 #include <SDL_syswm.h>
 479 static void VID_SetCaption()
 480 {
 481     SDL_SysWMinfo       info;
 482         HICON                   icon;
 483
 484         // set the caption
 485         SDL_WM_SetCaption( gamename, NULL );
 486
 487         // get the HWND handle
 488     SDL_VERSION( &info.version );
 489         if( !SDL_GetWMInfo( &info ) )
 490                 return;
 491
 492         icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 493 #ifndef _W64 //If Windows 64bit data types don't exist
 494 #ifndef SetClassLongPtr
 495 #define SetClassLongPtr SetClassLong
 496 #endif
 497 #ifndef GCLP_HICON
 498 #define GCLP_HICON GCL_HICON
 499 #endif
 500 #ifndef LONG_PTR
 501 #define LONG_PTR LONG
 502 #endif
 503 #endif
 504         SetClassLongPtr( info.window, GCLP_HICON, (LONG_PTR)icon );
 505 }
 506 static void VID_SetIcon()
 507 {
 508 }
 509 #else
 510 // Adding the OS independent XPM version --blub
 511 #include "darkplaces.xpm"
 512 #include "nexuiz.xpm"
 513 static SDL_Surface *icon = NULL;
 514 static void VID_SetIcon()
 515 {
 516         /*
 517          * Somewhat restricted XPM reader. Only supports XPMs saved by GIMP 2.4 at
 518          * default settings with less than 91 colors and transparency.
 519          */
 520
 521         int width, height, colors, isize, i, j;
 522         int thenone = -1;
 523         static SDL_Color palette[256];
 524         unsigned short palenc[256]; // store color id by char
 525
 526         char **idata = ENGINE_ICON;
 527         char *data = idata[0];
 528
 529         if(sscanf(data, "%i %i %i %i", &width, &height, &colors, &isize) != 4)
 530         {
 531                 // NOTE: Only 1-char colornames are supported
 532                 Con_Printf("Sorry, but this does not even look similar to an XPM.\n");
 533                 return;
 534         }
 535
 536         if(isize != 1)
 537         {
 538                 // NOTE: Only 1-char colornames are supported
 539                 Con_Printf("This XPM's palette is either huge or idiotically unoptimized. It's key size is %i\n", isize);
 540                 return;
 541         }
 542
 543         for(i = 0; i < colors; ++i)
 544         {
 545                 int r, g, b;
 546                 char idx;
 547
 548                 if(sscanf(idata[i+1], "%c c #%02x%02x%02x", &idx, &r, &g, &b) != 4)
 549                 {
 550                         char foo[2];
 551                         if(sscanf(idata[i+1], "%c c Non%1[e]", &idx, foo) != 2) // I take the DailyWTF credit for this. --div0
 552                         {
 553                                 Con_Printf("This XPM's palette looks odd. Can't continue.\n");
 554                                 return;
 555                         }
 556                         else
 557                         {
 558                                 palette[i].r = 255; // color key
 559                                 palette[i].g = 0;
 560                                 palette[i].b = 255;
 561                                 thenone = i; // weeeee
 562                         }
 563                 }
 564                 else
 565                 {
 566                         palette[i].r = r - (r == 255 && g == 0 && b == 255); // change 255/0/255 pink to 254/0/255 for color key
 567                         palette[i].g = g;
 568                         palette[i].b = b;
 569                 }
 570
 571                 palenc[(unsigned char) idx] = i;
 572         }
 573
 574         // allocate the image data
 575         data = (char*) malloc(width*height);
 576
 577         for(j = 0; j < height; ++j)
 578         {
 579                 for(i = 0; i < width; ++i)
 580                 {
 581                         // casting to the safest possible datatypes ^^
 582                         data[j * width + i] = palenc[((unsigned char*)idata[colors+j+1])[i]];
 583                 }
 584         }
 585
 586         if(icon != NULL)
 587         {
 588                 // SDL_FreeSurface should free the data too
 589                 // but for completeness' sake...
 590                 if(icon->flags & SDL_PREALLOC)
 591                 {
 592                         free(icon->pixels);
 593                         icon->pixels = NULL; // safety
 594                 }
 595                 SDL_FreeSurface(icon);
 596         }
 597
 598         icon = SDL_CreateRGBSurface(SDL_SRCCOLORKEY, width, height, 8, 0,0,0,0);// rmask, gmask, bmask, amask); no mask needed
 599         // 8 bit surfaces get an empty palette allocated according to the docs
 600         // so it's a palette image for sure :) no endian check necessary for the mask
 601
 602         if(icon == NULL) {
 603                 Con_Printf(     "Failed to create surface for the window Icon!\n"
 604                                 "%s\n", SDL_GetError());
 605                 free(data);
 606                 return;
 607         }
 608         icon->pixels = data;
 609         SDL_SetPalette(icon, SDL_PHYSPAL|SDL_LOGPAL, palette, 0, colors);
 610         SDL_SetColorKey(icon, SDL_SRCCOLORKEY, thenone);
 611
 612         SDL_WM_SetIcon(icon, NULL);
 613 }
 614
 615
 616 static void VID_SetCaption()
 617 {
 618         SDL_WM_SetCaption( gamename, NULL );
 619 }
 620 #endif
 621
 622 static void VID_OutputVersion()
 623 {
 624         const SDL_version *version;
 625         version = SDL_Linked_Version();
 626         Con_Printf(     "Linked against SDL version %d.%d.%d\n"
 627                                         "Using SDL library version %d.%d.%d\n",
 628                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
 629                                         version->major, version->minor, version->patch );
 630 }
 631
 632 int VID_InitMode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer, int samples)
 633 {
 634         int i;
 635         static int notfirstvideomode = false;
 636         int flags = SDL_OPENGL;
 637         const char *drivername;
 638
 639         win_half_width = width>>1;
 640         win_half_height = height>>1;
 641
 642         if(vid_resizable.integer)
 643                 flags |= SDL_RESIZABLE;
 644
 645         VID_OutputVersion();
 646
 647         /*
 648         SDL Hack
 649                 We cant switch from one OpenGL video mode to another.
 650                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
 651         */
 652         if (notfirstvideomode)
 653                 SDL_SetVideoMode( 0, 0, 0, 0 );
 654         notfirstvideomode = true;
 655
 656         // SDL usually knows best
 657         drivername = NULL;
 658
 659 // COMMANDLINEOPTION: SDL GL: -gl_driver <drivername> selects a GL driver library, default is whatever SDL recommends, useful only for 3dfxogl.dll/3dfxvgl.dll or fxmesa or similar, if you don't know what this is for, you don't need it
 660         i = COM_CheckParm("-gl_driver");
 661         if (i && i < com_argc - 1)
 662                 drivername = com_argv[i + 1];
 663         if (SDL_GL_LoadLibrary(drivername) < 0)
 664         {
 665                 Con_Printf("Unable to load GL driver \"%s\": %s\n", drivername, SDL_GetError());
 666                 return false;
 667         }
 668
 669         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
 670         {
 671                 VID_Shutdown();
 672                 Con_Print("Required OpenGL function glGetString not found\n");
 673                 return false;
 674         }
 675
 676         // Knghtbrd: should do platform-specific extension string function here
 677
 678         vid_isfullscreen = false;
 679         if (fullscreen) {
 680                 flags |= SDL_FULLSCREEN;
 681                 vid_isfullscreen = true;
 682         }
 683         //flags |= SDL_HWSURFACE;
 684
 685         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
 686         if (bpp >= 32)
 687         {
 688                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 8);
 689                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 8);
 690                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 8);
 691                 SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 8);
 692                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
 693                 SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 8);
 694         }
 695         else
 696         {
 697                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
 698                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
 699                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
 700                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
 701         }
 702         if (stereobuffer)
 703                 SDL_GL_SetAttribute (SDL_GL_STEREO, 1);
 704         if (vid_vsync.integer)
 705                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 1);
 706         else
 707                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 0);
 708         if (samples > 1)
 709         {
 710                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
 711                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, samples);
 712         }
 713
 714         video_bpp = bpp;
 715         video_flags = flags;
 716         VID_SetIcon();
 717         screen = SDL_SetVideoMode(width, height, bpp, flags);
 718
 719         if (screen == NULL)
 720         {
 721                 Con_Printf("Failed to set video mode to %ix%i: %s\n", width, height, SDL_GetError());
 722                 VID_Shutdown();
 723                 return false;
 724         }
 725
 726         // set window title
 727         VID_SetCaption();
 728         // set up an event filter to ask confirmation on close button in WIN32
 729         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
 730         // init keyboard
 731         SDL_EnableUNICODE( SDL_ENABLE );
 732         // enable key repeat since everyone expects it
 733         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
 734
 735         gl_renderer = (const char *)qglGetString(GL_RENDERER);
 736         gl_vendor = (const char *)qglGetString(GL_VENDOR);
 737         gl_version = (const char *)qglGetString(GL_VERSION);
 738         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
 739         gl_platform = "SDL";
 740         // Knghtbrd: should assign platform-specific extensions here
 741         //TODO: maybe ;)
 742         gl_platformextensions = "";
 743         gl_videosyncavailable = false;
 744
 745         Con_DPrintf("GL_VENDOR: %s\n", gl_vendor);
 746         Con_DPrintf("GL_RENDERER: %s\n", gl_renderer);
 747         Con_DPrintf("GL_VERSION: %s\n", gl_version);
 748         Con_DPrintf("GL_EXTENSIONS: %s\n", gl_extensions);
 749         Con_DPrintf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
 750
 751         GL_Init();
 752
 753         vid_numjoysticks = SDL_NumJoysticks();
 754         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
 755         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
 756         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
 757         memset(vid_joysticks, 0, sizeof(vid_joysticks));
 758         for (i = 0;i < vid_numjoysticks;i++)
 759         {
 760                 SDL_Joystick *joy;
 761                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
 762                 if (!joy)
 763                 {
 764                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
 765                         continue;
 766                 }
 767                 Con_Printf("joystick #%i: opened \"%s\" with %i axes, %i buttons, %i balls\n", i, SDL_JoystickName(i), (int)SDL_JoystickNumAxes(joy), (int)SDL_JoystickNumButtons(joy), (int)SDL_JoystickNumBalls(joy));
 768         }
 769
 770         vid_hidden = false;
 771         vid_activewindow = false;
 772         vid_usingmouse = false;
 773
 774         SDL_WM_GrabInput(SDL_GRAB_OFF);
 775         return true;
 776 }
 777
 778 void VID_Shutdown (void)
 779 {
 780         // this is needed to retry gamma after a vid_restart
 781         VID_RestoreSystemGamma();
 782
 783         IN_Activate(false);
 784         SDL_QuitSubSystem(SDL_INIT_VIDEO);
 785 }
 786
 787 int VID_SetGamma (unsigned short *ramps, int rampsize)
 788 {
 789         return !SDL_SetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
 790 }
 791
 792 int VID_GetGamma (unsigned short *ramps, int rampsize)
 793 {
 794         return !SDL_GetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
 795 }
 796
 797 void VID_Finish (qboolean allowmousegrab)
 798 {
 799         Uint8 appstate;
 800         qboolean vid_usemouse;
 801
 802         //react on appstate changes
 803         appstate = SDL_GetAppState();
 804
 805         vid_hidden = !(appstate & SDL_APPACTIVE);
 806
 807         if( vid_hidden || !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
 808                 vid_activewindow = false;
 809         else
 810                 vid_activewindow = true;
 811
 812         vid_usemouse = false;
 813         if( allowmousegrab && vid_mouse.integer && !key_consoleactive && (key_dest != key_game || !cls.demoplayback) )
 814                 vid_usemouse = true;
 815         if( vid_isfullscreen )
 816                 vid_usemouse = true;
 817         if( !vid_activewindow )
 818                 vid_usemouse = false;
 819
 820         IN_Activate(vid_usemouse);
 821
 822         VID_UpdateGamma(false, 256);
 823
 824         if (r_render.integer && !vid_hidden)
 825         {
 826                 CHECKGLERROR
 827                 if (r_speeds.integer || gl_finish.integer)
 828                 {
 829                         qglFinish();CHECKGLERROR
 830                 }
 831                 SDL_GL_SwapBuffers();
 832         }
 833 }