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