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 <SDL_syswm.h>
  22 #include <stdio.h>
  23
  24 #include "quakedef.h"
  25 #include "image.h"
  26
  27 #ifdef MACOSX
  28 #include <Carbon/Carbon.h>
  29 #include <IOKit/hidsystem/IOHIDLib.h>
  30 #include <IOKit/hidsystem/IOHIDParameter.h>
  31 #include <IOKit/hidsystem/event_status_driver.h>
  32 static cvar_t apple_mouse_noaccel = {CVAR_SAVE, "apple_mouse_noaccel", "1", "disables mouse acceleration while DarkPlaces is active"};
  33 static qboolean vid_usingnoaccel;
  34 static double originalMouseSpeed = -1.0;
  35 io_connect_t IN_GetIOHandle(void)
  36 {
  37         io_connect_t iohandle = MACH_PORT_NULL;
  38         kern_return_t status;
  39         io_service_t iohidsystem = MACH_PORT_NULL;
  40         mach_port_t masterport;
  41
  42         status = IOMasterPort(MACH_PORT_NULL, &masterport);
  43         if(status != KERN_SUCCESS)
  44                 return 0;
  45
  46         iohidsystem = IORegistryEntryFromPath(masterport, kIOServicePlane ":/IOResources/IOHIDSystem");
  47         if(!iohidsystem)
  48                 return 0;
  49
  50         status = IOServiceOpen(iohidsystem, mach_task_self(), kIOHIDParamConnectType, &iohandle);
  51         IOObjectRelease(iohidsystem);
  52
  53         return iohandle;
  54 }
  55 #endif
  56
  57 #ifdef WIN32
  58 #define SDL_R_RESTART
  59 #endif
  60
  61 // Tell startup code that we have a client
  62 int cl_available = true;
  63
  64 qboolean vid_supportrefreshrate = false;
  65
  66 cvar_t joy_detected = {CVAR_READONLY, "joy_detected", "0", "number of joysticks detected by engine"};
  67 cvar_t joy_enable = {CVAR_SAVE, "joy_enable", "0", "enables joystick support"};
  68 cvar_t joy_index = {0, "joy_index", "0", "selects which joystick to use if you have multiple"};
  69 cvar_t joy_axisforward = {0, "joy_axisforward", "1", "which joystick axis to query for forward/backward movement"};
  70 cvar_t joy_axisside = {0, "joy_axisside", "0", "which joystick axis to query for right/left movement"};
  71 cvar_t joy_axisup = {0, "joy_axisup", "-1", "which joystick axis to query for up/down movement"};
  72 cvar_t joy_axispitch = {0, "joy_axispitch", "3", "which joystick axis to query for looking up/down"};
  73 cvar_t joy_axisyaw = {0, "joy_axisyaw", "2", "which joystick axis to query for looking right/left"};
  74 cvar_t joy_axisroll = {0, "joy_axisroll", "-1", "which joystick axis to query for tilting head right/left"};
  75 cvar_t joy_deadzoneforward = {0, "joy_deadzoneforward", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  76 cvar_t joy_deadzoneside = {0, "joy_deadzoneside", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  77 cvar_t joy_deadzoneup = {0, "joy_deadzoneup", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  78 cvar_t joy_deadzonepitch = {0, "joy_deadzonepitch", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  79 cvar_t joy_deadzoneyaw = {0, "joy_deadzoneyaw", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  80 cvar_t joy_deadzoneroll = {0, "joy_deadzoneroll", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  81 cvar_t joy_sensitivityforward = {0, "joy_sensitivityforward", "-1", "movement multiplier"};
  82 cvar_t joy_sensitivityside = {0, "joy_sensitivityside", "1", "movement multiplier"};
  83 cvar_t joy_sensitivityup = {0, "joy_sensitivityup", "1", "movement multiplier"};
  84 cvar_t joy_sensitivitypitch = {0, "joy_sensitivitypitch", "1", "movement multiplier"};
  85 cvar_t joy_sensitivityyaw = {0, "joy_sensitivityyaw", "-1", "movement multiplier"};
  86 cvar_t joy_sensitivityroll = {0, "joy_sensitivityroll", "1", "movement multiplier"};
  87
  88 static qboolean vid_usingmouse = false;
  89 static qboolean vid_usinghidecursor = false;
  90 static qboolean vid_isfullscreen;
  91 static int vid_numjoysticks = 0;
  92 #define MAX_JOYSTICKS 8
  93 static SDL_Joystick *vid_joysticks[MAX_JOYSTICKS];
  94
  95 static int win_half_width = 50;
  96 static int win_half_height = 50;
  97 static int video_bpp, video_flags;
  98
  99 static SDL_Surface *screen;
 100
 101 /////////////////////////
 102 // Input handling
 103 ////
 104 //TODO: Add joystick support
 105 //TODO: Add error checking
 106
 107
 108 //keysym to quake keysym mapping
 109 #define tenoh   0,0,0,0,0, 0,0,0,0,0
 110 #define fiftyoh tenoh, tenoh, tenoh, tenoh, tenoh
 111 #define hundredoh fiftyoh, fiftyoh
 112 static unsigned int tbl_sdltoquake[] =
 113 {
 114         0,0,0,0,                //SDLK_UNKNOWN          = 0,
 115         0,0,0,0,                //SDLK_FIRST            = 0,
 116         K_BACKSPACE,    //SDLK_BACKSPACE        = 8,
 117         K_TAB,                  //SDLK_TAB                      = 9,
 118         0,0,
 119         0,                              //SDLK_CLEAR            = 12,
 120         K_ENTER,                //SDLK_RETURN           = 13,
 121     0,0,0,0,0,
 122         K_PAUSE,                //SDLK_PAUSE            = 19,
 123         0,0,0,0,0,0,0,
 124         K_ESCAPE,               //SDLK_ESCAPE           = 27,
 125         0,0,0,0,
 126         K_SPACE,                //SDLK_SPACE            = 32,
 127         '!',                    //SDLK_EXCLAIM          = 33,
 128         '"',                    //SDLK_QUOTEDBL         = 34,
 129         '#',                    //SDLK_HASH                     = 35,
 130         '$',                    //SDLK_DOLLAR           = 36,
 131         0,
 132         '&',                    //SDLK_AMPERSAND        = 38,
 133         '\'',                   //SDLK_QUOTE            = 39,
 134         '(',                    //SDLK_LEFTPAREN        = 40,
 135         ')',                    //SDLK_RIGHTPAREN       = 41,
 136         '*',                    //SDLK_ASTERISK         = 42,
 137         '+',                    //SDLK_PLUS                     = 43,
 138         ',',                    //SDLK_COMMA            = 44,
 139         '-',                    //SDLK_MINUS            = 45,
 140         '.',                    //SDLK_PERIOD           = 46,
 141         '/',                    //SDLK_SLASH            = 47,
 142         '0',                    //SDLK_0                        = 48,
 143         '1',                    //SDLK_1                        = 49,
 144         '2',                    //SDLK_2                        = 50,
 145         '3',                    //SDLK_3                        = 51,
 146         '4',                    //SDLK_4                        = 52,
 147         '5',                    //SDLK_5                        = 53,
 148         '6',                    //SDLK_6                        = 54,
 149         '7',                    //SDLK_7                        = 55,
 150         '8',                    //SDLK_8                        = 56,
 151         '9',                    //SDLK_9                        = 57,
 152         ':',                    //SDLK_COLON            = 58,
 153         ';',                    //SDLK_SEMICOLON        = 59,
 154         '<',                    //SDLK_LESS                     = 60,
 155         '=',                    //SDLK_EQUALS           = 61,
 156         '>',                    //SDLK_GREATER          = 62,
 157         '?',                    //SDLK_QUESTION         = 63,
 158         '@',                    //SDLK_AT                       = 64,
 159         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,
 160         '[',            //SDLK_LEFTBRACKET      = 91,
 161         '\\',           //SDLK_BACKSLASH        = 92,
 162         ']',            //SDLK_RIGHTBRACKET     = 93,
 163         '^',            //SDLK_CARET            = 94,
 164         '_',            //SDLK_UNDERSCORE       = 95,
 165         '`',            //SDLK_BACKQUOTE        = 96,
 166         'a',            //SDLK_a                        = 97,
 167         'b',            //SDLK_b                        = 98,
 168         'c',            //SDLK_c                        = 99,
 169         'd',            //SDLK_d                        = 100,
 170         'e',            //SDLK_e                        = 101,
 171         'f',            //SDLK_f                        = 102,
 172         'g',            //SDLK_g                        = 103,
 173         'h',            //SDLK_h                        = 104,
 174         'i',            //SDLK_i                        = 105,
 175         'j',            //SDLK_j                        = 106,
 176         'k',            //SDLK_k                        = 107,
 177         'l',            //SDLK_l                        = 108,
 178         'm',            //SDLK_m                        = 109,
 179         'n',            //SDLK_n                        = 110,
 180         'o',            //SDLK_o                        = 111,
 181         'p',            //SDLK_p                        = 112,
 182         'q',            //SDLK_q                        = 113,
 183         'r',            //SDLK_r                        = 114,
 184         's',            //SDLK_s                        = 115,
 185         't',            //SDLK_t                        = 116,
 186         'u',            //SDLK_u                        = 117,
 187         'v',            //SDLK_v                        = 118,
 188         'w',            //SDLK_w                        = 119,
 189         'x',            //SDLK_x                        = 120,
 190         'y',            //SDLK_y                        = 121,
 191         'z',            //SDLK_z                        = 122,
 192         0,0,0,0,
 193         K_DEL,          //SDLK_DELETE           = 127,
 194         hundredoh /*227*/, tenoh, tenoh, 0,0,0,0,0,0,0,0,
 195         K_KP_0,         //SDLK_KP0              = 256,
 196         K_KP_1,         //SDLK_KP1              = 257,
 197         K_KP_2,         //SDLK_KP2              = 258,
 198         K_KP_3,         //SDLK_KP3              = 259,
 199         K_KP_4,         //SDLK_KP4              = 260,
 200         K_KP_5,         //SDLK_KP5              = 261,
 201         K_KP_6,         //SDLK_KP6              = 262,
 202         K_KP_7,         //SDLK_KP7              = 263,
 203         K_KP_8,         //SDLK_KP8              = 264,
 204         K_KP_9,         //SDLK_KP9              = 265,
 205         K_KP_PERIOD,//SDLK_KP_PERIOD    = 266,
 206         K_KP_DIVIDE,//SDLK_KP_DIVIDE    = 267,
 207         K_KP_MULTIPLY,//SDLK_KP_MULTIPLY= 268,
 208         K_KP_MINUS,     //SDLK_KP_MINUS         = 269,
 209         K_KP_PLUS,      //SDLK_KP_PLUS          = 270,
 210         K_KP_ENTER,     //SDLK_KP_ENTER         = 271,
 211         K_KP_EQUALS,//SDLK_KP_EQUALS    = 272,
 212         K_UPARROW,      //SDLK_UP               = 273,
 213         K_DOWNARROW,//SDLK_DOWN         = 274,
 214         K_RIGHTARROW,//SDLK_RIGHT       = 275,
 215         K_LEFTARROW,//SDLK_LEFT         = 276,
 216         K_INS,          //SDLK_INSERT   = 277,
 217         K_HOME,         //SDLK_HOME             = 278,
 218         K_END,          //SDLK_END              = 279,
 219         K_PGUP,         //SDLK_PAGEUP   = 280,
 220         K_PGDN,         //SDLK_PAGEDOWN = 281,
 221         K_F1,           //SDLK_F1               = 282,
 222         K_F2,           //SDLK_F2               = 283,
 223         K_F3,           //SDLK_F3               = 284,
 224         K_F4,           //SDLK_F4               = 285,
 225         K_F5,           //SDLK_F5               = 286,
 226         K_F6,           //SDLK_F6               = 287,
 227         K_F7,           //SDLK_F7               = 288,
 228         K_F8,           //SDLK_F8               = 289,
 229         K_F9,           //SDLK_F9               = 290,
 230         K_F10,          //SDLK_F10              = 291,
 231         K_F11,          //SDLK_F11              = 292,
 232         K_F12,          //SDLK_F12              = 293,
 233         0,                      //SDLK_F13              = 294,
 234         0,                      //SDLK_F14              = 295,
 235         0,                      //SDLK_F15              = 296,
 236         0,0,0,
 237         K_NUMLOCK,      //SDLK_NUMLOCK  = 300,
 238         K_CAPSLOCK,     //SDLK_CAPSLOCK = 301,
 239         K_SCROLLOCK,//SDLK_SCROLLOCK= 302,
 240         K_SHIFT,        //SDLK_RSHIFT   = 303,
 241         K_SHIFT,        //SDLK_LSHIFT   = 304,
 242         K_CTRL,         //SDLK_RCTRL    = 305,
 243         K_CTRL,         //SDLK_LCTRL    = 306,
 244         K_ALT,          //SDLK_RALT             = 307,
 245         K_ALT,          //SDLK_LALT             = 308,
 246         0,                      //SDLK_RMETA    = 309,
 247         0,                      //SDLK_LMETA    = 310,
 248         0,                      //SDLK_LSUPER   = 311,          /* Left "Windows" key */
 249         0,                      //SDLK_RSUPER   = 312,          /* Right "Windows" key */
 250         K_ALT,                  //SDLK_MODE             = 313,          /* "Alt Gr" key */
 251         0,                      //SDLK_COMPOSE  = 314,          /* Multi-key compose key */
 252         0,                      //SDLK_HELP             = 315,
 253         0,                      //SDLK_PRINT    = 316,
 254         0,                      //SDLK_SYSREQ   = 317,
 255         K_PAUSE,        //SDLK_BREAK    = 318,
 256         0,                      //SDLK_MENU             = 319,
 257         0,                      //SDLK_POWER    = 320,          /* Power Macintosh power key */
 258         'e',            //SDLK_EURO             = 321,          /* Some european keyboards */
 259         0                       //SDLK_UNDO             = 322,          /* Atari keyboard has Undo */
 260 };
 261 #undef tenoh
 262 #undef fiftyoh
 263 #undef hundredoh
 264
 265 static int MapKey( unsigned int sdlkey )
 266 {
 267         if( sdlkey > sizeof(tbl_sdltoquake)/ sizeof(int) )
 268                 return 0;
 269     return tbl_sdltoquake[ sdlkey ];
 270 }
 271
 272 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 273 {
 274 #ifdef MACOSX
 275         if(relative)
 276                 if(vid_usingmouse && (vid_usingnoaccel != !!apple_mouse_noaccel.integer))
 277                         VID_SetMouse(false, false, false); // ungrab first!
 278 #endif
 279         if (vid_usingmouse != relative)
 280         {
 281                 vid_usingmouse = relative;
 282                 cl_ignoremousemoves = 2;
 283                 SDL_WM_GrabInput( relative ? SDL_GRAB_ON : SDL_GRAB_OFF );
 284 #ifdef MACOSX
 285                 if(relative)
 286                 {
 287                         // Save the status of mouse acceleration
 288                         originalMouseSpeed = -1.0; // in case of error
 289                         if(apple_mouse_noaccel.integer)
 290                         {
 291                                 io_connect_t mouseDev = IN_GetIOHandle();
 292                                 if(mouseDev != 0)
 293                                 {
 294                                         if(IOHIDGetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), &originalMouseSpeed) == kIOReturnSuccess)
 295                                         {
 296                                                 Con_DPrintf("previous mouse acceleration: %f\n", originalMouseSpeed);
 297                                                 if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), -1.0) != kIOReturnSuccess)
 298                                                 {
 299                                                         Con_Print("Could not disable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 300                                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 301                                                 }
 302                                         }
 303                                         else
 304                                         {
 305                                                 Con_Print("Could not disable mouse acceleration (failed at IOHIDGetAccelerationWithKey).\n");
 306                                                 Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 307                                         }
 308                                         IOServiceClose(mouseDev);
 309                                 }
 310                                 else
 311                                 {
 312                                         Con_Print("Could not disable mouse acceleration (failed at IO_GetIOHandle).\n");
 313                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 314                                 }
 315                         }
 316
 317                         vid_usingnoaccel = !!apple_mouse_noaccel.integer;
 318                 }
 319                 else
 320                 {
 321                         if(originalMouseSpeed != -1.0)
 322                         {
 323                                 io_connect_t mouseDev = IN_GetIOHandle();
 324                                 if(mouseDev != 0)
 325                                 {
 326                                         Con_DPrintf("restoring mouse acceleration to: %f\n", originalMouseSpeed);
 327                                         if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), originalMouseSpeed) != kIOReturnSuccess)
 328                                                 Con_Print("Could not re-enable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 329                                         IOServiceClose(mouseDev);
 330                                 }
 331                                 else
 332                                         Con_Print("Could not re-enable mouse acceleration (failed at IO_GetIOHandle).\n");
 333                         }
 334                 }
 335 #endif
 336         }
 337         if (vid_usinghidecursor != hidecursor)
 338         {
 339                 vid_usinghidecursor = hidecursor;
 340                 SDL_ShowCursor( hidecursor ? SDL_DISABLE : SDL_ENABLE);
 341         }
 342 }
 343
 344 static double IN_JoystickGetAxis(SDL_Joystick *joy, int axis, double sensitivity, double deadzone)
 345 {
 346         double value;
 347         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 348                 return 0; // no such axis on this joystick
 349         value = SDL_JoystickGetAxis(joy, axis) * (1.0 / 32767.0);
 350         value = bound(-1, value, 1);
 351         if (fabs(value) < deadzone)
 352                 return 0; // within deadzone around center
 353         return value * sensitivity;
 354 }
 355
 356 void IN_Move( void )
 357 {
 358         int j;
 359         static int old_x = 0, old_y = 0;
 360         static int stuck = 0;
 361         int x, y;
 362         if (vid_usingmouse)
 363         {
 364                 if(vid_stick_mouse.integer)
 365                 {
 366                         // have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
 367                         // window grabbing. --blub
 368
 369                         // we need 2 frames to initialize the center position
 370                         if(!stuck)
 371                         {
 372                                 SDL_WarpMouse(win_half_width, win_half_height);
 373                                 SDL_GetMouseState(&x, &y);
 374                                 SDL_GetRelativeMouseState(&x, &y);
 375                                 ++stuck;
 376                         } else {
 377                                 SDL_GetRelativeMouseState(&x, &y);
 378                                 in_mouse_x = x + old_x;
 379                                 in_mouse_y = y + old_y;
 380                                 SDL_GetMouseState(&x, &y);
 381                                 old_x = x - win_half_width;
 382                                 old_y = y - win_half_height;
 383                                 SDL_WarpMouse(win_half_width, win_half_height);
 384                         }
 385                 } else {
 386                         SDL_GetRelativeMouseState( &x, &y );
 387                         in_mouse_x = x;
 388                         in_mouse_y = y;
 389                 }
 390         }
 391
 392         SDL_GetMouseState(&x, &y);
 393         in_windowmouse_x = x;
 394         in_windowmouse_y = y;
 395
 396         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 397         {
 398                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 399                 int numballs = SDL_JoystickNumBalls(joy);
 400                 for (j = 0;j < numballs;j++)
 401                 {
 402                         SDL_JoystickGetBall(joy, j, &x, &y);
 403                         in_mouse_x += x;
 404                         in_mouse_y += y;
 405                 }
 406                 cl.cmd.forwardmove += IN_JoystickGetAxis(joy, joy_axisforward.integer, joy_sensitivityforward.value, joy_deadzoneforward.value) * cl_forwardspeed.value;
 407                 cl.cmd.sidemove    += IN_JoystickGetAxis(joy, joy_axisside.integer, joy_sensitivityside.value, joy_deadzoneside.value) * cl_sidespeed.value;
 408                 cl.cmd.upmove      += IN_JoystickGetAxis(joy, joy_axisup.integer, joy_sensitivityup.value, joy_deadzoneup.value) * cl_upspeed.value;
 409                 cl.viewangles[0]   += IN_JoystickGetAxis(joy, joy_axispitch.integer, joy_sensitivitypitch.value, joy_deadzonepitch.value) * cl.realframetime * cl_pitchspeed.value;
 410                 cl.viewangles[1]   += IN_JoystickGetAxis(joy, joy_axisyaw.integer, joy_sensitivityyaw.value, joy_deadzoneyaw.value) * cl.realframetime * cl_yawspeed.value;
 411                 //cl.viewangles[2]   += IN_JoystickGetAxis(joy, joy_axisroll.integer, joy_sensitivityroll.value, joy_deadzoneroll.value) * cl.realframetime * cl_rollspeed.value;
 412         }
 413 }
 414
 415 /////////////////////
 416 // Message Handling
 417 ////
 418
 419 static int Sys_EventFilter( SDL_Event *event )
 420 {
 421         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 422         if (event->type == SDL_QUIT)
 423         {
 424 #ifdef WIN32
 425                 if (MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO)
 426                         return 0;
 427 #endif
 428         }
 429         return 1;
 430 }
 431
 432 #ifdef SDL_R_RESTART
 433 static qboolean sdl_needs_restart;
 434 static void sdl_start(void)
 435 {
 436 }
 437 static void sdl_shutdown(void)
 438 {
 439         sdl_needs_restart = false;
 440 }
 441 static void sdl_newmap(void)
 442 {
 443 }
 444 #endif
 445
 446 static keynum_t buttonremap[18] =
 447 {
 448         K_MOUSE1,
 449         K_MOUSE3,
 450         K_MOUSE2,
 451         K_MWHEELUP,
 452         K_MWHEELDOWN,
 453         K_MOUSE4,
 454         K_MOUSE5,
 455         K_MOUSE6,
 456         K_MOUSE7,
 457         K_MOUSE8,
 458         K_MOUSE9,
 459         K_MOUSE10,
 460         K_MOUSE11,
 461         K_MOUSE12,
 462         K_MOUSE13,
 463         K_MOUSE14,
 464         K_MOUSE15,
 465         K_MOUSE16,
 466 };
 467
 468 void Sys_SendKeyEvents( void )
 469 {
 470         static qboolean sound_active = true;
 471         SDL_Event event;
 472
 473         while( SDL_PollEvent( &event ) )
 474                 switch( event.type ) {
 475                         case SDL_QUIT:
 476                                 Sys_Quit(0);
 477                                 break;
 478                         case SDL_KEYDOWN:
 479                         case SDL_KEYUP:
 480                                 Key_Event( MapKey( event.key.keysym.sym ), event.key.keysym.unicode, (event.key.state == SDL_PRESSED) );
 481                                 break;
 482                         case SDL_ACTIVEEVENT:
 483                                 if( event.active.state & SDL_APPACTIVE )
 484                                 {
 485                                         if( event.active.gain )
 486                                                 vid_hidden = false;
 487                                         else
 488                                                 vid_hidden = true;
 489                                 }
 490                                 break;
 491                         case SDL_MOUSEBUTTONDOWN:
 492                         case SDL_MOUSEBUTTONUP:
 493                                 if (event.button.button <= 18)
 494                                         Key_Event( buttonremap[event.button.button - 1], 0, event.button.state == SDL_PRESSED );
 495                                 break;
 496                         case SDL_JOYBUTTONDOWN:
 497                                 if (!joy_enable.integer)
 498                                         break; // ignore down events if joystick has been disabled
 499                         case SDL_JOYBUTTONUP:
 500                                 if (event.jbutton.button < 48)
 501                                         Key_Event( event.jbutton.button + (event.jbutton.button < 16 ? K_JOY1 : K_AUX1 - 16), 0, (event.jbutton.state == SDL_PRESSED) );
 502                                 break;
 503                         case SDL_VIDEORESIZE:
 504                                 if(vid_resizable.integer < 2)
 505                                 {
 506                                         vid.width = event.resize.w;
 507                                         vid.height = event.resize.h;
 508                                         SDL_SetVideoMode(vid.width, vid.height, video_bpp, video_flags);
 509 #ifdef SDL_R_RESTART
 510                                         // better not call R_Modules_Restart from here directly, as this may wreak havoc...
 511                                         // so, let's better queue it for next frame
 512                                         if(!sdl_needs_restart)
 513                                         {
 514                                                 Cbuf_AddText("\nr_restart\n");
 515                                                 sdl_needs_restart = true;
 516                                         }
 517 #endif
 518                                 }
 519                                 break;
 520                 }
 521
 522         // enable/disable sound on focus gain/loss
 523         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
 524         {
 525                 if (!sound_active)
 526                 {
 527                         S_UnblockSound ();
 528                         sound_active = true;
 529                 }
 530         }
 531         else
 532         {
 533                 if (sound_active)
 534                 {
 535                         S_BlockSound ();
 536                         sound_active = false;
 537                 }
 538         }
 539 }
 540
 541 /////////////////
 542 // Video system
 543 ////
 544
 545 void *GL_GetProcAddress(const char *name)
 546 {
 547         void *p = NULL;
 548         p = SDL_GL_GetProcAddress(name);
 549         return p;
 550 }
 551
 552 static int Sys_EventFilter( SDL_Event *event );
 553 static qboolean vid_sdl_initjoysticksystem = false;
 554
 555 void VID_Init (void)
 556 {
 557 #ifdef MACOSX
 558         Cvar_RegisterVariable(&apple_mouse_noaccel);
 559 #endif
 560         Cvar_RegisterVariable(&joy_detected);
 561         Cvar_RegisterVariable(&joy_enable);
 562         Cvar_RegisterVariable(&joy_index);
 563         Cvar_RegisterVariable(&joy_axisforward);
 564         Cvar_RegisterVariable(&joy_axisside);
 565         Cvar_RegisterVariable(&joy_axisup);
 566         Cvar_RegisterVariable(&joy_axispitch);
 567         Cvar_RegisterVariable(&joy_axisyaw);
 568         //Cvar_RegisterVariable(&joy_axisroll);
 569         Cvar_RegisterVariable(&joy_deadzoneforward);
 570         Cvar_RegisterVariable(&joy_deadzoneside);
 571         Cvar_RegisterVariable(&joy_deadzoneup);
 572         Cvar_RegisterVariable(&joy_deadzonepitch);
 573         Cvar_RegisterVariable(&joy_deadzoneyaw);
 574         //Cvar_RegisterVariable(&joy_deadzoneroll);
 575         Cvar_RegisterVariable(&joy_sensitivityforward);
 576         Cvar_RegisterVariable(&joy_sensitivityside);
 577         Cvar_RegisterVariable(&joy_sensitivityup);
 578         Cvar_RegisterVariable(&joy_sensitivitypitch);
 579         Cvar_RegisterVariable(&joy_sensitivityyaw);
 580         //Cvar_RegisterVariable(&joy_sensitivityroll);
 581
 582 #ifdef SDL_R_RESTART
 583         R_RegisterModule("SDL", sdl_start, sdl_shutdown, sdl_newmap, NULL, NULL);
 584 #endif
 585
 586         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 587                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
 588         vid_sdl_initjoysticksystem = SDL_Init(SDL_INIT_JOYSTICK) >= 0;
 589         if (vid_sdl_initjoysticksystem)
 590                 Con_Printf("Failed to init SDL joystick subsystem: %s\n", SDL_GetError());
 591         vid_isfullscreen = false;
 592 }
 593
 594 // set the icon (we dont use SDL here since it would be too much a PITA)
 595 #ifdef WIN32
 596 #include "resource.h"
 597 #include <SDL_syswm.h>
 598 static void VID_SetCaption(void)
 599 {
 600     SDL_SysWMinfo       info;
 601         HICON                   icon;
 602
 603         // set the caption
 604         SDL_WM_SetCaption( gamename, NULL );
 605
 606         // get the HWND handle
 607     SDL_VERSION( &info.version );
 608         if( !SDL_GetWMInfo( &info ) )
 609                 return;
 610
 611         icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 612 #ifndef _W64 //If Windows 64bit data types don't exist
 613 #ifndef SetClassLongPtr
 614 #define SetClassLongPtr SetClassLong
 615 #endif
 616 #ifndef GCLP_HICON
 617 #define GCLP_HICON GCL_HICON
 618 #endif
 619 #ifndef LONG_PTR
 620 #define LONG_PTR LONG
 621 #endif
 622 #endif
 623         SetClassLongPtr( info.window, GCLP_HICON, (LONG_PTR)icon );
 624 }
 625 static void VID_SetIcon_Pre(void)
 626 {
 627 }
 628 static void VID_SetIcon_Post(void)
 629 {
 630 }
 631 #else
 632 // Adding the OS independent XPM version --blub
 633 #include "darkplaces.xpm"
 634 #include "nexuiz.xpm"
 635 static SDL_Surface *icon = NULL;
 636 static void VID_SetIcon_Pre(void)
 637 {
 638         /*
 639          * Somewhat restricted XPM reader. Only supports XPMs saved by GIMP 2.4 at
 640          * default settings with less than 91 colors and transparency.
 641          */
 642
 643         int width, height, colors, isize, i, j;
 644         int thenone = -1;
 645         static SDL_Color palette[256];
 646         unsigned short palenc[256]; // store color id by char
 647         char *xpm;
 648         char **idata, *data;
 649         const SDL_version *version;
 650
 651         version = SDL_Linked_Version();
 652         // only use non-XPM icon support in SDL v1.3 and higher
 653         // SDL v1.2 does not support "smooth" transparency, and thus is better
 654         // off the xpm way
 655         if(version->major >= 2 || (version->major == 1 && version->minor >= 3))
 656         {
 657                 data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 658                 if(data)
 659                 {
 660                         unsigned int red = 0x00FF0000;
 661                         unsigned int green = 0x0000FF00;
 662                         unsigned int blue = 0x000000FF;
 663                         unsigned int alpha = 0xFF000000;
 664                         width = image_width;
 665                         height = image_height;
 666
 667                         // reallocate with malloc, as this is in tempmempool (do not want)
 668                         xpm = data;
 669                         data = malloc(width * height * 4);
 670                         memcpy(data, xpm, width * height * 4);
 671                         Mem_Free(xpm);
 672                         xpm = NULL;
 673
 674                         icon = SDL_CreateRGBSurface(SDL_SRCALPHA, width, height, 32, LittleLong(red), LittleLong(green), LittleLong(blue), LittleLong(alpha));
 675
 676                         if(icon == NULL) {
 677                                 Con_Printf(     "Failed to create surface for the window Icon!\n"
 678                                                 "%s\n", SDL_GetError());
 679                                 free(data);
 680                                 return;
 681                         }
 682
 683                         icon->pixels = data;
 684                 }
 685         }
 686
 687         // we only get here if non-XPM icon was missing, or SDL version is not
 688         // sufficient for transparent non-XPM icons
 689         if(!icon)
 690         {
 691                 xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
 692                 idata = NULL;
 693                 if(xpm)
 694                         idata = XPM_DecodeString(xpm);
 695                 if(!idata)
 696                         idata = ENGINE_ICON;
 697                 if(xpm)
 698                         Mem_Free(xpm);
 699
 700                 data = idata[0];
 701
 702                 if(sscanf(data, "%i %i %i %i", &width, &height, &colors, &isize) != 4)
 703                 {
 704                         // NOTE: Only 1-char colornames are supported
 705                         Con_Printf("Sorry, but this does not even look similar to an XPM.\n");
 706                         return;
 707                 }
 708
 709                 if(isize != 1)
 710                 {
 711                         // NOTE: Only 1-char colornames are supported
 712                         Con_Printf("This XPM's palette is either huge or idiotically unoptimized. It's key size is %i\n", isize);
 713                         return;
 714                 }
 715
 716                 for(i = 0; i < colors; ++i)
 717                 {
 718                         unsigned int r, g, b;
 719                         char idx;
 720
 721                         if(sscanf(idata[i+1], "%c c #%02x%02x%02x", &idx, &r, &g, &b) != 4)
 722                         {
 723                                 char foo[2];
 724                                 if(sscanf(idata[i+1], "%c c Non%1[e]", &idx, foo) != 2) // I take the DailyWTF credit for this. --div0
 725                                 {
 726                                         Con_Printf("This XPM's palette looks odd. Can't continue.\n");
 727                                         return;
 728                                 }
 729                                 else
 730                                 {
 731                                         palette[i].r = 255; // color key
 732                                         palette[i].g = 0;
 733                                         palette[i].b = 255;
 734                                         thenone = i; // weeeee
 735                                 }
 736                         }
 737                         else
 738                         {
 739                                 palette[i].r = r - (r == 255 && g == 0 && b == 255); // change 255/0/255 pink to 254/0/255 for color key
 740                                 palette[i].g = g;
 741                                 palette[i].b = b;
 742                         }
 743
 744                         palenc[(unsigned char) idx] = i;
 745                 }
 746
 747                 // allocate the image data
 748                 data = (char*) malloc(width*height);
 749
 750                 for(j = 0; j < height; ++j)
 751                 {
 752                         for(i = 0; i < width; ++i)
 753                         {
 754                                 // casting to the safest possible datatypes ^^
 755                                 data[j * width + i] = palenc[((unsigned char*)idata[colors+j+1])[i]];
 756                         }
 757                 }
 758
 759                 if(icon != NULL)
 760                 {
 761                         // SDL_FreeSurface should free the data too
 762                         // but for completeness' sake...
 763                         if(icon->flags & SDL_PREALLOC)
 764                         {
 765                                 free(icon->pixels);
 766                                 icon->pixels = NULL; // safety
 767                         }
 768                         SDL_FreeSurface(icon);
 769                 }
 770
 771                 icon = SDL_CreateRGBSurface(SDL_SRCCOLORKEY, width, height, 8, 0,0,0,0);// rmask, gmask, bmask, amask); no mask needed
 772                 // 8 bit surfaces get an empty palette allocated according to the docs
 773                 // so it's a palette image for sure :) no endian check necessary for the mask
 774
 775                 if(icon == NULL) {
 776                         Con_Printf(     "Failed to create surface for the window Icon!\n"
 777                                         "%s\n", SDL_GetError());
 778                         free(data);
 779                         return;
 780                 }
 781
 782                 icon->pixels = data;
 783                 SDL_SetPalette(icon, SDL_PHYSPAL|SDL_LOGPAL, palette, 0, colors);
 784                 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, thenone);
 785         }
 786
 787         SDL_WM_SetIcon(icon, NULL);
 788 }
 789 static void VID_SetIcon_Post(void)
 790 {
 791 #if SDL_VIDEO_DRIVER_X11 && !SDL_VIDEO_DRIVER_QUARTZ
 792         int j;
 793         char *data;
 794         const SDL_version *version;
 795
 796         version = SDL_Linked_Version();
 797         // only use non-XPM icon support in SDL v1.3 and higher
 798         // SDL v1.2 does not support "smooth" transparency, and thus is better
 799         // off the xpm way
 800         if(!(version->major >= 2 || (version->major == 1 && version->minor >= 3)))
 801         {
 802                 // in this case, we did not set the good icon yet
 803                 SDL_SysWMinfo info;
 804                 SDL_VERSION(&info.version);
 805                 if(SDL_GetWMInfo(&info) == 1 && info.subsystem == SDL_SYSWM_X11)
 806                 {
 807                         data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 808                         if(data)
 809                         {
 810                                 // use _NET_WM_ICON too
 811                                 static long netwm_icon[MAX_NETWM_ICON];
 812                                 int pos = 0;
 813                                 int i = 1;
 814
 815                                 while(data)
 816                                 {
 817                                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
 818                                         {
 819                                                 netwm_icon[pos++] = image_width;
 820                                                 netwm_icon[pos++] = image_height;
 821                                                 for(i = 0; i < image_height; ++i)
 822                                                         for(j = 0; j < image_width; ++j)
 823                                                                 netwm_icon[pos++] = BuffLittleLong((unsigned char *) &data[(i*image_width+j)*4]);
 824                                         }
 825                                         else
 826                                         {
 827                                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
 828                                         }
 829                                         ++i;
 830                                         Mem_Free(data);
 831                                         data = (char *) loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
 832                                 }
 833
 834                                 info.info.x11.lock_func();
 835                                 {
 836                                         Atom net_wm_icon = XInternAtom(info.info.x11.display, "_NET_WM_ICON", false);
 837                                         XChangeProperty(info.info.x11.display, info.info.x11.wmwindow, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
 838                                 }
 839                                 info.info.x11.unlock_func();
 840                         }
 841                 }
 842         }
 843 #endif
 844 }
 845
 846
 847 static void VID_SetCaption(void)
 848 {
 849         SDL_WM_SetCaption( gamename, NULL );
 850 }
 851 #endif
 852
 853 static void VID_OutputVersion(void)
 854 {
 855         const SDL_version *version;
 856         version = SDL_Linked_Version();
 857         Con_Printf(     "Linked against SDL version %d.%d.%d\n"
 858                                         "Using SDL library version %d.%d.%d\n",
 859                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
 860                                         version->major, version->minor, version->patch );
 861 }
 862
 863 qboolean VID_InitMode(viddef_mode_t *mode)
 864 {
 865         int i;
 866         static int notfirstvideomode = false;
 867         int flags = SDL_OPENGL;
 868         const char *drivername;
 869
 870         win_half_width = mode->width>>1;
 871         win_half_height = mode->height>>1;
 872
 873         if(vid_resizable.integer)
 874                 flags |= SDL_RESIZABLE;
 875
 876         VID_OutputVersion();
 877
 878         /*
 879         SDL Hack
 880                 We cant switch from one OpenGL video mode to another.
 881                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
 882         */
 883         if (notfirstvideomode)
 884                 SDL_SetVideoMode( 0, 0, 0, 0 );
 885         notfirstvideomode = true;
 886
 887         // SDL usually knows best
 888         drivername = NULL;
 889
 890 // 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
 891         i = COM_CheckParm("-gl_driver");
 892         if (i && i < com_argc - 1)
 893                 drivername = com_argv[i + 1];
 894         if (SDL_GL_LoadLibrary(drivername) < 0)
 895         {
 896                 Con_Printf("Unable to load GL driver \"%s\": %s\n", drivername, SDL_GetError());
 897                 return false;
 898         }
 899
 900         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
 901         {
 902                 VID_Shutdown();
 903                 Con_Print("Required OpenGL function glGetString not found\n");
 904                 return false;
 905         }
 906
 907         // Knghtbrd: should do platform-specific extension string function here
 908
 909         vid_isfullscreen = false;
 910         if (mode->fullscreen) {
 911                 flags |= SDL_FULLSCREEN;
 912                 vid_isfullscreen = true;
 913         }
 914         //flags |= SDL_HWSURFACE;
 915
 916         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
 917         if (mode->bitsperpixel >= 32)
 918         {
 919                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 8);
 920                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 8);
 921                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 8);
 922                 SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 8);
 923                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
 924                 SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 8);
 925         }
 926         else
 927         {
 928                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
 929                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
 930                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
 931                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
 932         }
 933         if (mode->stereobuffer)
 934                 SDL_GL_SetAttribute (SDL_GL_STEREO, 1);
 935         if (vid_vsync.integer)
 936                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 1);
 937         else
 938                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 0);
 939         if (mode->samples > 1)
 940         {
 941                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
 942                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, mode->samples);
 943         }
 944
 945         video_bpp = mode->bitsperpixel;
 946         video_flags = flags;
 947         VID_SetIcon_Pre();
 948         screen = SDL_SetVideoMode(mode->width, mode->height, mode->bitsperpixel, flags);
 949         VID_SetIcon_Post();
 950
 951         if (screen == NULL)
 952         {
 953                 Con_Printf("Failed to set video mode to %ix%i: %s\n", mode->width, mode->height, SDL_GetError());
 954                 VID_Shutdown();
 955                 return false;
 956         }
 957
 958         // set window title
 959         VID_SetCaption();
 960         // set up an event filter to ask confirmation on close button in WIN32
 961         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
 962         // init keyboard
 963         SDL_EnableUNICODE( SDL_ENABLE );
 964         // enable key repeat since everyone expects it
 965         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
 966
 967         gl_platform = "SDL";
 968         gl_platformextensions = "";
 969
 970         GL_Init();
 971
 972         vid_numjoysticks = SDL_NumJoysticks();
 973         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
 974         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
 975         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
 976         memset(vid_joysticks, 0, sizeof(vid_joysticks));
 977         for (i = 0;i < vid_numjoysticks;i++)
 978         {
 979                 SDL_Joystick *joy;
 980                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
 981                 if (!joy)
 982                 {
 983                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
 984                         continue;
 985                 }
 986                 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));
 987         }
 988
 989         vid_hidden = false;
 990         vid_activewindow = false;
 991         vid_usingmouse = false;
 992         vid_usinghidecursor = false;
 993
 994         SDL_WM_GrabInput(SDL_GRAB_OFF);
 995         return true;
 996 }
 997
 998 void VID_Shutdown (void)
 999 {
1000         VID_SetMouse(false, false, false);
1001         VID_RestoreSystemGamma();
1002
1003         SDL_QuitSubSystem(SDL_INIT_VIDEO);
1004
1005         gl_driver[0] = 0;
1006         gl_extensions = "";
1007         gl_platform = "";
1008         gl_platformextensions = "";
1009 }
1010
1011 int VID_SetGamma (unsigned short *ramps, int rampsize)
1012 {
1013         return !SDL_SetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1014 }
1015
1016 int VID_GetGamma (unsigned short *ramps, int rampsize)
1017 {
1018         return !SDL_GetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1019 }
1020
1021 void VID_Finish (void)
1022 {
1023         Uint8 appstate;
1024
1025         //react on appstate changes
1026         appstate = SDL_GetAppState();
1027
1028         vid_hidden = !(appstate & SDL_APPACTIVE);
1029
1030         if( vid_hidden || !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
1031                 vid_activewindow = false;
1032         else
1033                 vid_activewindow = true;
1034
1035         VID_UpdateGamma(false, 256);
1036
1037         if (!vid_hidden)
1038         {
1039                 CHECKGLERROR
1040                 if (r_speeds.integer == 2 || gl_finish.integer)
1041                 {
1042                         qglFinish();CHECKGLERROR
1043                 }
1044                 SDL_GL_SwapBuffers();
1045         }
1046 }
1047
1048 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1049 {
1050         size_t k;
1051         SDL_Rect **vidmodes;
1052         int bpp = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
1053
1054         k = 0;
1055         for(vidmodes = SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_HWSURFACE); *vidmodes; ++vidmodes)
1056         {
1057                 if(k >= maxcount)
1058                         break;
1059                 modes[k].width = (*vidmodes)->w;
1060                 modes[k].height = (*vidmodes)->h;
1061                 modes[k].bpp = bpp;
1062                 modes[k].refreshrate = 60; // no support for refresh rate in SDL
1063                 modes[k].pixelheight_num = 1;
1064                 modes[k].pixelheight_denom = 1; // SDL does not provide this
1065                 ++k;
1066         }
1067         return k;
1068 }