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 = {0, "joy_enable", "1", "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_ignoremousemove = true;
 245                         if(vid_grabkeyboard.integer) {
 246                                 SDL_WM_GrabInput( SDL_GRAB_ON );
 247                         }
 248                         SDL_ShowCursor( SDL_DISABLE );
 249                 }
 250         }
 251         else
 252         {
 253                 if (vid_usingmouse)
 254                 {
 255                         vid_usingmouse = false;
 256                         cl_ignoremousemove = true;
 257                         if(vid_grabkeyboard.integer) {
 258                                 SDL_WM_GrabInput( SDL_GRAB_OFF );
 259                         }
 260                         SDL_ShowCursor( SDL_ENABLE );
 261                 }
 262         }
 263 }
 264
 265 static double IN_JoystickGetAxis(SDL_Joystick *joy, int axis, double sensitivity, double deadzone)
 266 {
 267         double value;
 268         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 269                 return 0; // no such axis on this joystick
 270         value = SDL_JoystickGetAxis(joy, axis) * (1.0 / 32767.0);
 271         value = bound(-1, value, 1);
 272         if (fabs(value) < deadzone)
 273                 return 0; // within deadzone around center
 274         return value * sensitivity;
 275 }
 276
 277 void IN_Move( void )
 278 {
 279         int j;
 280         static int old_x = 0, old_y = 0;
 281         static int stuck = 0;
 282         int x, y;
 283         if( vid_usingmouse )
 284         {
 285                 if(vid_stick_mouse.integer)
 286                 {
 287                         // have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
 288                         // window grabbing. --blub
 289
 290                         // we need 2 frames to initialize the center position
 291                         if(!stuck)
 292                         {
 293                                 SDL_WarpMouse(win_half_width, win_half_height);
 294                                 SDL_GetMouseState(&x, &y);
 295                                 SDL_GetRelativeMouseState(&x, &y);
 296                                 ++stuck;
 297                         } else {
 298                                 SDL_GetRelativeMouseState(&x, &y);
 299                                 in_mouse_x = x + old_x;
 300                                 in_mouse_y = y + old_y;
 301                                 SDL_GetMouseState(&x, &y);
 302                                 old_x = x - win_half_width;
 303                                 old_y = y - win_half_height;
 304                                 SDL_WarpMouse(win_half_width, win_half_height);
 305                         }
 306                 } else {
 307                         SDL_GetRelativeMouseState( &x, &y );
 308                         in_mouse_x = x;
 309                         in_mouse_y = y;
 310                 }
 311         }
 312         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 313         {
 314                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 315                 int numballs = SDL_JoystickNumBalls(joy);
 316                 for (j = 0;j < numballs;j++)
 317                 {
 318                         SDL_JoystickGetBall(joy, j, &x, &y);
 319                         in_mouse_x += x;
 320                         in_mouse_y += y;
 321                 }
 322                 cl.cmd.forwardmove += IN_JoystickGetAxis(joy, joy_axisforward.integer, joy_sensitivityforward.value, joy_deadzoneforward.value) * cl_forwardspeed.value;
 323                 cl.cmd.sidemove    += IN_JoystickGetAxis(joy, joy_axisside.integer, joy_sensitivityside.value, joy_deadzoneside.value) * cl_sidespeed.value;
 324                 cl.cmd.upmove      += IN_JoystickGetAxis(joy, joy_axisup.integer, joy_sensitivityup.value, joy_deadzoneup.value) * cl_upspeed.value;
 325                 cl.viewangles[0]   += IN_JoystickGetAxis(joy, joy_axispitch.integer, joy_sensitivitypitch.value, joy_deadzonepitch.value) * cl.realframetime * cl_pitchspeed.value;
 326                 cl.viewangles[1]   += IN_JoystickGetAxis(joy, joy_axisyaw.integer, joy_sensitivityyaw.value, joy_deadzoneyaw.value) * cl.realframetime * cl_yawspeed.value;
 327                 //cl.viewangles[2]   += IN_JoystickGetAxis(joy, joy_axisroll.integer, joy_sensitivityroll.value, joy_deadzoneroll.value) * cl.realframetime * cl_rollspeed.value;
 328         }
 329 }
 330
 331 /////////////////////
 332 // Message Handling
 333 ////
 334
 335 static int Sys_EventFilter( SDL_Event *event )
 336 {
 337         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 338 #ifdef WIN32
 339         if( event->type == SDL_QUIT && MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO )
 340                 return 0;
 341         else
 342                 return 1;
 343 #else
 344         return 1;
 345 #endif
 346 }
 347
 348 static keynum_t buttonremap[18] =
 349 {
 350         K_MOUSE1,
 351         K_MOUSE3,
 352         K_MOUSE2,
 353         K_MWHEELUP,
 354         K_MWHEELDOWN,
 355         K_MOUSE4,
 356         K_MOUSE5,
 357         K_MOUSE6,
 358         K_MOUSE7,
 359         K_MOUSE8,
 360         K_MOUSE9,
 361         K_MOUSE10,
 362         K_MOUSE11,
 363         K_MOUSE12,
 364         K_MOUSE13,
 365         K_MOUSE14,
 366         K_MOUSE15,
 367         K_MOUSE16,
 368 };
 369
 370 void Sys_SendKeyEvents( void )
 371 {
 372         static qboolean sound_active = true;
 373         SDL_Event event;
 374
 375         while( SDL_PollEvent( &event ) )
 376                 switch( event.type ) {
 377                         case SDL_QUIT:
 378                                 Sys_Quit(0);
 379                                 break;
 380                         case SDL_KEYDOWN:
 381                         case SDL_KEYUP:
 382                                 Key_Event( MapKey( event.key.keysym.sym ), (char)event.key.keysym.unicode, (event.key.state == SDL_PRESSED) );
 383                                 break;
 384                         case SDL_ACTIVEEVENT:
 385                                 if( event.active.state == SDL_APPACTIVE )
 386                                 {
 387                                         if( event.active.gain )
 388                                                 vid_hidden = false;
 389                                         else
 390                                                 vid_hidden = true;
 391                                 }
 392                                 break;
 393                         case SDL_MOUSEBUTTONDOWN:
 394                         case SDL_MOUSEBUTTONUP:
 395                                 if (event.button.button <= 18)
 396                                         Key_Event( buttonremap[event.button.button - 1], 0, event.button.state == SDL_PRESSED );
 397                                 break;
 398                         case SDL_JOYBUTTONDOWN:
 399                                 if (!joy_enable.integer)
 400                                         break; // ignore down events if joystick has been disabled
 401                         case SDL_JOYBUTTONUP:
 402                                 if (event.jbutton.button < 48)
 403                                         Key_Event( event.jbutton.button + (event.jbutton.button < 16 ? K_JOY1 : K_AUX1 - 16), 0, (event.jbutton.state == SDL_PRESSED) );
 404                                 break;
 405                         case SDL_VIDEORESIZE:
 406                                 if(vid_resizable.integer < 2)
 407                                 {
 408                                         vid.width = event.resize.w;
 409                                         vid.height = event.resize.h;
 410                                         SDL_SetVideoMode(vid.width, vid.height, video_bpp, video_flags);
 411                                 }
 412                                 break;
 413                 }
 414
 415         // enable/disable sound on focus gain/loss
 416         if (!vid_hidden && (vid_activewindow || !snd_mutewhenidle.integer))
 417         {
 418                 if (!sound_active)
 419                 {
 420                         S_UnblockSound ();
 421                         sound_active = true;
 422                 }
 423         }
 424         else
 425         {
 426                 if (sound_active)
 427                 {
 428                         S_BlockSound ();
 429                         sound_active = false;
 430                 }
 431         }
 432 }
 433
 434 /////////////////
 435 // Video system
 436 ////
 437
 438 void *GL_GetProcAddress(const char *name)
 439 {
 440         void *p = NULL;
 441         p = SDL_GL_GetProcAddress(name);
 442         return p;
 443 }
 444
 445 static int Sys_EventFilter( SDL_Event *event );
 446 static qboolean vid_sdl_initjoysticksystem = false;
 447 void VID_Init (void)
 448 {
 449         Cvar_RegisterVariable(&joy_detected);
 450         Cvar_RegisterVariable(&joy_enable);
 451         Cvar_RegisterVariable(&joy_index);
 452         Cvar_RegisterVariable(&joy_axisforward);
 453         Cvar_RegisterVariable(&joy_axisside);
 454         Cvar_RegisterVariable(&joy_axisup);
 455         Cvar_RegisterVariable(&joy_axispitch);
 456         Cvar_RegisterVariable(&joy_axisyaw);
 457         //Cvar_RegisterVariable(&joy_axisroll);
 458         Cvar_RegisterVariable(&joy_deadzoneforward);
 459         Cvar_RegisterVariable(&joy_deadzoneside);
 460         Cvar_RegisterVariable(&joy_deadzoneup);
 461         Cvar_RegisterVariable(&joy_deadzonepitch);
 462         Cvar_RegisterVariable(&joy_deadzoneyaw);
 463         //Cvar_RegisterVariable(&joy_deadzoneroll);
 464         Cvar_RegisterVariable(&joy_sensitivityforward);
 465         Cvar_RegisterVariable(&joy_sensitivityside);
 466         Cvar_RegisterVariable(&joy_sensitivityup);
 467         Cvar_RegisterVariable(&joy_sensitivitypitch);
 468         Cvar_RegisterVariable(&joy_sensitivityyaw);
 469         //Cvar_RegisterVariable(&joy_sensitivityroll);
 470
 471         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 472                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
 473         vid_sdl_initjoysticksystem = SDL_Init(SDL_INIT_JOYSTICK) >= 0;
 474         if (vid_sdl_initjoysticksystem)
 475                 Con_Printf("Failed to init SDL joystick subsystem: %s\n", SDL_GetError());
 476         vid_isfullscreen = false;
 477 }
 478
 479 // set the icon (we dont use SDL here since it would be too much a PITA)
 480 #ifdef WIN32
 481 #include "resource.h"
 482 #include <SDL_syswm.h>
 483 static void VID_SetCaption()
 484 {
 485     SDL_SysWMinfo       info;
 486         HICON                   icon;
 487
 488         // set the caption
 489         SDL_WM_SetCaption( gamename, NULL );
 490
 491         // get the HWND handle
 492     SDL_VERSION( &info.version );
 493         if( !SDL_GetWMInfo( &info ) )
 494                 return;
 495
 496         icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 497 #ifndef _W64 //If Windows 64bit data types don't exist
 498 #define SetClassLongPtr SetClassLong
 499 #define GCLP_HICON GCL_HICON
 500 #define LONG_PTR LONG
 501 #endif
 502         SetClassLongPtr( info.window, GCLP_HICON, (LONG_PTR)icon );
 503 }
 504 static void VID_SetIcon()
 505 {
 506 }
 507 #else
 508 // Adding the OS independent XPM version --blub
 509 #include "darkplaces.xpm"
 510 #include "nexuiz.xpm"
 511 static SDL_Surface *icon = NULL;
 512 static void VID_SetIcon()
 513 {
 514         /*
 515          * Somewhat restricted XPM reader. Only supports XPMs saved by GIMP 2.4 at
 516          * default settings with less than 91 colors and transparency.
 517          */
 518
 519         int width, height, colors, isize, i, j;
 520         int thenone = -1;
 521         static SDL_Color palette[256];
 522         unsigned short palenc[256]; // store color id by char
 523
 524         char **idata = ENGINE_ICON;
 525         char *data = idata[0];
 526
 527         if(sscanf(data, "%i %i %i %i", &width, &height, &colors, &isize) != 4)
 528         {
 529                 // NOTE: Only 1-char colornames are supported
 530                 Con_Printf("Sorry, but this does not even look similar to an XPM.\n");
 531                 return;
 532         }
 533
 534         if(isize != 1)
 535         {
 536                 // NOTE: Only 1-char colornames are supported
 537                 Con_Printf("This XPM's palette is either huge or idiotically unoptimized. It's key size is %i\n", isize);
 538                 return;
 539         }
 540
 541         for(i = 0; i < colors; ++i)
 542         {
 543                 int r, g, b;
 544                 char idx;
 545
 546                 if(sscanf(idata[i+1], "%c c #%02x%02x%02x", &idx, &r, &g, &b) != 4)
 547                 {
 548                         char foo[2];
 549                         if(sscanf(idata[i+1], "%c c Non%1[e]", &idx, foo) != 2) // I take the DailyWTF credit for this. --div0
 550                         {
 551                                 Con_Printf("This XPM's palette looks odd. Can't continue.\n");
 552                                 return;
 553                         }
 554                         else
 555                         {
 556                                 palette[i].r = 255; // color key
 557                                 palette[i].g = 0;
 558                                 palette[i].b = 255;
 559                                 thenone = i; // weeeee
 560                         }
 561                 }
 562                 else
 563                 {
 564                         palette[i].r = r - (r == 255 && g == 0 && b == 255); // change 255/0/255 pink to 254/0/255 for color key
 565                         palette[i].g = g;
 566                         palette[i].b = b;
 567                 }
 568
 569                 palenc[(unsigned char) idx] = i;
 570         }
 571
 572         // allocate the image data
 573         data = (char*) malloc(width*height);
 574
 575         for(j = 0; j < height; ++j)
 576         {
 577                 for(i = 0; i < width; ++i)
 578                 {
 579                         // casting to the safest possible datatypes ^^
 580                         data[j * width + i] = palenc[((unsigned char*)idata[colors+j+1])[i]];
 581                 }
 582         }
 583
 584         if(icon != NULL)
 585         {
 586                 // SDL_FreeSurface should free the data too
 587                 // but for completeness' sake...
 588                 if(icon->flags & SDL_PREALLOC)
 589                 {
 590                         free(icon->pixels);
 591                         icon->pixels = NULL; // safety
 592                 }
 593                 SDL_FreeSurface(icon);
 594         }
 595
 596         icon = SDL_CreateRGBSurface(SDL_SRCCOLORKEY, width, height, 8, 0,0,0,0);// rmask, gmask, bmask, amask); no mask needed
 597         // 8 bit surfaces get an empty palette allocated according to the docs
 598         // so it's a palette image for sure :) no endian check necessary for the mask
 599
 600         if(icon == NULL) {
 601                 Con_Printf(     "Failed to create surface for the window Icon!\n"
 602                                 "%s\n", SDL_GetError());
 603                 free(data);
 604                 return;
 605         }
 606         icon->pixels = data;
 607         SDL_SetPalette(icon, SDL_PHYSPAL|SDL_LOGPAL, palette, 0, colors);
 608         SDL_SetColorKey(icon, SDL_SRCCOLORKEY, thenone);
 609
 610         SDL_WM_SetIcon(icon, NULL);
 611 }
 612
 613
 614 static void VID_SetCaption()
 615 {
 616         SDL_WM_SetCaption( gamename, NULL );
 617 }
 618 #endif
 619
 620 static void VID_OutputVersion()
 621 {
 622         const SDL_version *version;
 623         version = SDL_Linked_Version();
 624         Con_Printf(     "Linked against SDL version %d.%d.%d\n"
 625                                         "Using SDL library version %d.%d.%d\n",
 626                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
 627                                         version->major, version->minor, version->patch );
 628 }
 629
 630 int VID_InitMode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
 631 {
 632         int i;
 633         static int notfirstvideomode = false;
 634         int flags = SDL_OPENGL;
 635         const char *drivername;
 636
 637         win_half_width = width>>1;
 638         win_half_height = height>>1;
 639
 640         if(vid_resizable.integer)
 641                 flags |= SDL_RESIZABLE;
 642
 643         VID_OutputVersion();
 644
 645         /*
 646         SDL Hack
 647                 We cant switch from one OpenGL video mode to another.
 648                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
 649         */
 650         if (notfirstvideomode)
 651                 SDL_SetVideoMode( 0, 0, 0, 0 );
 652         notfirstvideomode = true;
 653
 654         // SDL usually knows best
 655         drivername = NULL;
 656
 657 // 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
 658         i = COM_CheckParm("-gl_driver");
 659         if (i && i < com_argc - 1)
 660                 drivername = com_argv[i + 1];
 661         if (SDL_GL_LoadLibrary(drivername) < 0)
 662         {
 663                 Con_Printf("Unable to load GL driver \"%s\": %s\n", drivername, SDL_GetError());
 664                 return false;
 665         }
 666
 667         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
 668         {
 669                 VID_Shutdown();
 670                 Con_Print("Required OpenGL function glGetString not found\n");
 671                 return false;
 672         }
 673
 674         // Knghtbrd: should do platform-specific extension string function here
 675
 676         vid_isfullscreen = false;
 677         if (fullscreen) {
 678                 flags |= SDL_FULLSCREEN;
 679                 vid_isfullscreen = true;
 680         }
 681         //flags |= SDL_HWSURFACE;
 682
 683         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
 684         if (bpp >= 32)
 685         {
 686                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 8);
 687                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 8);
 688                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 8);
 689                 SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 8);
 690                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
 691                 SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 8);
 692         }
 693         else
 694         {
 695                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 1);
 696                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 1);
 697                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 1);
 698                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
 699         }
 700         if (stereobuffer)
 701                 SDL_GL_SetAttribute (SDL_GL_STEREO, 1);
 702
 703         video_bpp = bpp;
 704         video_flags = flags;
 705         VID_SetIcon();
 706         screen = SDL_SetVideoMode(width, height, bpp, flags);
 707
 708         if (screen == NULL)
 709         {
 710                 Con_Printf("Failed to set video mode to %ix%i: %s\n", width, height, SDL_GetError());
 711                 VID_Shutdown();
 712                 return false;
 713         }
 714
 715         // set window title
 716         VID_SetCaption();
 717         // set up an event filter to ask confirmation on close button in WIN32
 718         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
 719         // init keyboard
 720         SDL_EnableUNICODE( SDL_ENABLE );
 721         // enable key repeat since everyone expects it
 722         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
 723
 724         gl_renderer = (const char *)qglGetString(GL_RENDERER);
 725         gl_vendor = (const char *)qglGetString(GL_VENDOR);
 726         gl_version = (const char *)qglGetString(GL_VERSION);
 727         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
 728         gl_platform = "SDL";
 729         // Knghtbrd: should assign platform-specific extensions here
 730         //TODO: maybe ;)
 731         gl_platformextensions = "";
 732         gl_videosyncavailable = false;
 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
 757         if(!vid_grabkeyboard.integer)
 758                 SDL_WM_GrabInput(SDL_GRAB_OFF);
 759         return true;
 760 }
 761
 762 void VID_Shutdown (void)
 763 {
 764         // this is needed to retry gamma after a vid_restart
 765         VID_RestoreSystemGamma();
 766
 767         IN_Activate(false);
 768         SDL_QuitSubSystem(SDL_INIT_VIDEO);
 769 }
 770
 771 int VID_SetGamma (unsigned short *ramps, int rampsize)
 772 {
 773         return !SDL_SetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
 774 }
 775
 776 int VID_GetGamma (unsigned short *ramps, int rampsize)
 777 {
 778         return !SDL_GetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
 779 }
 780
 781 void VID_Finish (qboolean allowmousegrab)
 782 {
 783         Uint8 appstate;
 784         qboolean vid_usemouse;
 785
 786         //react on appstate changes
 787         appstate = SDL_GetAppState();
 788
 789         vid_hidden = !(appstate & SDL_APPACTIVE);
 790
 791         if( vid_hidden || !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
 792                 vid_activewindow = false;
 793         else
 794                 vid_activewindow = true;
 795
 796         vid_usemouse = false;
 797         if( allowmousegrab && vid_mouse.integer && !key_consoleactive && (key_dest != key_game || !cls.demoplayback) )
 798                 vid_usemouse = true;
 799         if( vid_isfullscreen )
 800                 vid_usemouse = true;
 801         if( !vid_activewindow )
 802                 vid_usemouse = false;
 803
 804         IN_Activate(vid_usemouse);
 805
 806         VID_UpdateGamma(false, 256);
 807
 808         if (r_render.integer && !vid_hidden)
 809         {
 810                 CHECKGLERROR
 811                 if (r_speeds.integer || gl_finish.integer)
 812                 {
 813                         qglFinish();CHECKGLERROR
 814                 }
 815                 SDL_GL_SwapBuffers();
 816         }
 817 }