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 #include "dpsoftrast.h"
  27
  28 #ifdef MACOSX
  29 #include <Carbon/Carbon.h>
  30 #include <IOKit/hidsystem/IOHIDLib.h>
  31 #include <IOKit/hidsystem/IOHIDParameter.h>
  32 #include <IOKit/hidsystem/event_status_driver.h>
  33 static cvar_t apple_mouse_noaccel = {CVAR_SAVE, "apple_mouse_noaccel", "1", "disables mouse acceleration while DarkPlaces is active"};
  34 static qboolean vid_usingnoaccel;
  35 static double originalMouseSpeed = -1.0;
  36 io_connect_t IN_GetIOHandle(void)
  37 {
  38         io_connect_t iohandle = MACH_PORT_NULL;
  39         kern_return_t status;
  40         io_service_t iohidsystem = MACH_PORT_NULL;
  41         mach_port_t masterport;
  42
  43         status = IOMasterPort(MACH_PORT_NULL, &masterport);
  44         if(status != KERN_SUCCESS)
  45                 return 0;
  46
  47         iohidsystem = IORegistryEntryFromPath(masterport, kIOServicePlane ":/IOResources/IOHIDSystem");
  48         if(!iohidsystem)
  49                 return 0;
  50
  51         status = IOServiceOpen(iohidsystem, mach_task_self(), kIOHIDParamConnectType, &iohandle);
  52         IOObjectRelease(iohidsystem);
  53
  54         return iohandle;
  55 }
  56 #endif
  57
  58 #ifdef WIN32
  59 #define SDL_R_RESTART
  60 #endif
  61
  62 // Tell startup code that we have a client
  63 int cl_available = true;
  64
  65 qboolean vid_supportrefreshrate = false;
  66
  67 cvar_t vid_soft = {CVAR_SAVE, "vid_soft", "0", "enables use of the DarkPlaces Software Rasterizer rather than OpenGL or Direct3D"};
  68 cvar_t joy_detected = {CVAR_READONLY, "joy_detected", "0", "number of joysticks detected by engine"};
  69 cvar_t joy_enable = {CVAR_SAVE, "joy_enable", "0", "enables joystick support"};
  70 cvar_t joy_index = {0, "joy_index", "0", "selects which joystick to use if you have multiple"};
  71 cvar_t joy_axisforward = {0, "joy_axisforward", "1", "which joystick axis to query for forward/backward movement"};
  72 cvar_t joy_axisside = {0, "joy_axisside", "0", "which joystick axis to query for right/left movement"};
  73 cvar_t joy_axisup = {0, "joy_axisup", "-1", "which joystick axis to query for up/down movement"};
  74 cvar_t joy_axispitch = {0, "joy_axispitch", "3", "which joystick axis to query for looking up/down"};
  75 cvar_t joy_axisyaw = {0, "joy_axisyaw", "2", "which joystick axis to query for looking right/left"};
  76 cvar_t joy_axisroll = {0, "joy_axisroll", "-1", "which joystick axis to query for tilting head right/left"};
  77 cvar_t joy_deadzoneforward = {0, "joy_deadzoneforward", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  78 cvar_t joy_deadzoneside = {0, "joy_deadzoneside", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  79 cvar_t joy_deadzoneup = {0, "joy_deadzoneup", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  80 cvar_t joy_deadzonepitch = {0, "joy_deadzonepitch", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  81 cvar_t joy_deadzoneyaw = {0, "joy_deadzoneyaw", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  82 cvar_t joy_deadzoneroll = {0, "joy_deadzoneroll", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  83 cvar_t joy_sensitivityforward = {0, "joy_sensitivityforward", "-1", "movement multiplier"};
  84 cvar_t joy_sensitivityside = {0, "joy_sensitivityside", "1", "movement multiplier"};
  85 cvar_t joy_sensitivityup = {0, "joy_sensitivityup", "1", "movement multiplier"};
  86 cvar_t joy_sensitivitypitch = {0, "joy_sensitivitypitch", "1", "movement multiplier"};
  87 cvar_t joy_sensitivityyaw = {0, "joy_sensitivityyaw", "-1", "movement multiplier"};
  88 cvar_t joy_sensitivityroll = {0, "joy_sensitivityroll", "1", "movement multiplier"};
  89 cvar_t joy_axiskeyevents = {CVAR_SAVE, "joy_axiskeyevents", "0", "generate uparrow/leftarrow etc. keyevents for joystick axes, use if your joystick driver is not generating them"};
  90
  91 static qboolean vid_usingmouse = false;
  92 static qboolean vid_usinghidecursor = false;
  93 static qboolean vid_isfullscreen;
  94 static int vid_numjoysticks = 0;
  95 #define MAX_JOYSTICKS 8
  96 static SDL_Joystick *vid_joysticks[MAX_JOYSTICKS];
  97
  98 static int win_half_width = 50;
  99 static int win_half_height = 50;
 100 static int video_bpp, video_flags;
 101
 102 static SDL_Surface *screen;
 103 static SDL_Surface *vid_softsurface;
 104
 105 // joystick axes state
 106 #define MAX_JOYSTICK_AXES       16
 107 typedef struct
 108 {
 109         float oldmove;
 110         float move;
 111         double keytime;
 112 }joy_axiscache_t;
 113 static joy_axiscache_t joy_axescache[MAX_JOYSTICK_AXES];
 114
 115 /////////////////////////
 116 // Input handling
 117 ////
 118 //TODO: Add joystick support
 119 //TODO: Add error checking
 120
 121
 122 //keysym to quake keysym mapping
 123 #define tenoh   0,0,0,0,0, 0,0,0,0,0
 124 #define fiftyoh tenoh, tenoh, tenoh, tenoh, tenoh
 125 #define hundredoh fiftyoh, fiftyoh
 126 static unsigned int tbl_sdltoquake[] =
 127 {
 128         0,0,0,0,                //SDLK_UNKNOWN          = 0,
 129         0,0,0,0,                //SDLK_FIRST            = 0,
 130         K_BACKSPACE,    //SDLK_BACKSPACE        = 8,
 131         K_TAB,                  //SDLK_TAB                      = 9,
 132         0,0,
 133         0,                              //SDLK_CLEAR            = 12,
 134         K_ENTER,                //SDLK_RETURN           = 13,
 135     0,0,0,0,0,
 136         K_PAUSE,                //SDLK_PAUSE            = 19,
 137         0,0,0,0,0,0,0,
 138         K_ESCAPE,               //SDLK_ESCAPE           = 27,
 139         0,0,0,0,
 140         K_SPACE,                //SDLK_SPACE            = 32,
 141         '!',                    //SDLK_EXCLAIM          = 33,
 142         '"',                    //SDLK_QUOTEDBL         = 34,
 143         '#',                    //SDLK_HASH                     = 35,
 144         '$',                    //SDLK_DOLLAR           = 36,
 145         0,
 146         '&',                    //SDLK_AMPERSAND        = 38,
 147         '\'',                   //SDLK_QUOTE            = 39,
 148         '(',                    //SDLK_LEFTPAREN        = 40,
 149         ')',                    //SDLK_RIGHTPAREN       = 41,
 150         '*',                    //SDLK_ASTERISK         = 42,
 151         '+',                    //SDLK_PLUS                     = 43,
 152         ',',                    //SDLK_COMMA            = 44,
 153         '-',                    //SDLK_MINUS            = 45,
 154         '.',                    //SDLK_PERIOD           = 46,
 155         '/',                    //SDLK_SLASH            = 47,
 156         '0',                    //SDLK_0                        = 48,
 157         '1',                    //SDLK_1                        = 49,
 158         '2',                    //SDLK_2                        = 50,
 159         '3',                    //SDLK_3                        = 51,
 160         '4',                    //SDLK_4                        = 52,
 161         '5',                    //SDLK_5                        = 53,
 162         '6',                    //SDLK_6                        = 54,
 163         '7',                    //SDLK_7                        = 55,
 164         '8',                    //SDLK_8                        = 56,
 165         '9',                    //SDLK_9                        = 57,
 166         ':',                    //SDLK_COLON            = 58,
 167         ';',                    //SDLK_SEMICOLON        = 59,
 168         '<',                    //SDLK_LESS                     = 60,
 169         '=',                    //SDLK_EQUALS           = 61,
 170         '>',                    //SDLK_GREATER          = 62,
 171         '?',                    //SDLK_QUESTION         = 63,
 172         '@',                    //SDLK_AT                       = 64,
 173         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,
 174         '[',            //SDLK_LEFTBRACKET      = 91,
 175         '\\',           //SDLK_BACKSLASH        = 92,
 176         ']',            //SDLK_RIGHTBRACKET     = 93,
 177         '^',            //SDLK_CARET            = 94,
 178         '_',            //SDLK_UNDERSCORE       = 95,
 179         '`',            //SDLK_BACKQUOTE        = 96,
 180         'a',            //SDLK_a                        = 97,
 181         'b',            //SDLK_b                        = 98,
 182         'c',            //SDLK_c                        = 99,
 183         'd',            //SDLK_d                        = 100,
 184         'e',            //SDLK_e                        = 101,
 185         'f',            //SDLK_f                        = 102,
 186         'g',            //SDLK_g                        = 103,
 187         'h',            //SDLK_h                        = 104,
 188         'i',            //SDLK_i                        = 105,
 189         'j',            //SDLK_j                        = 106,
 190         'k',            //SDLK_k                        = 107,
 191         'l',            //SDLK_l                        = 108,
 192         'm',            //SDLK_m                        = 109,
 193         'n',            //SDLK_n                        = 110,
 194         'o',            //SDLK_o                        = 111,
 195         'p',            //SDLK_p                        = 112,
 196         'q',            //SDLK_q                        = 113,
 197         'r',            //SDLK_r                        = 114,
 198         's',            //SDLK_s                        = 115,
 199         't',            //SDLK_t                        = 116,
 200         'u',            //SDLK_u                        = 117,
 201         'v',            //SDLK_v                        = 118,
 202         'w',            //SDLK_w                        = 119,
 203         'x',            //SDLK_x                        = 120,
 204         'y',            //SDLK_y                        = 121,
 205         'z',            //SDLK_z                        = 122,
 206         0,0,0,0,
 207         K_DEL,          //SDLK_DELETE           = 127,
 208         hundredoh /*227*/, tenoh, tenoh, 0,0,0,0,0,0,0,0,
 209         K_KP_0,         //SDLK_KP0              = 256,
 210         K_KP_1,         //SDLK_KP1              = 257,
 211         K_KP_2,         //SDLK_KP2              = 258,
 212         K_KP_3,         //SDLK_KP3              = 259,
 213         K_KP_4,         //SDLK_KP4              = 260,
 214         K_KP_5,         //SDLK_KP5              = 261,
 215         K_KP_6,         //SDLK_KP6              = 262,
 216         K_KP_7,         //SDLK_KP7              = 263,
 217         K_KP_8,         //SDLK_KP8              = 264,
 218         K_KP_9,         //SDLK_KP9              = 265,
 219         K_KP_PERIOD,//SDLK_KP_PERIOD    = 266,
 220         K_KP_DIVIDE,//SDLK_KP_DIVIDE    = 267,
 221         K_KP_MULTIPLY,//SDLK_KP_MULTIPLY= 268,
 222         K_KP_MINUS,     //SDLK_KP_MINUS         = 269,
 223         K_KP_PLUS,      //SDLK_KP_PLUS          = 270,
 224         K_KP_ENTER,     //SDLK_KP_ENTER         = 271,
 225         K_KP_EQUALS,//SDLK_KP_EQUALS    = 272,
 226         K_UPARROW,      //SDLK_UP               = 273,
 227         K_DOWNARROW,//SDLK_DOWN         = 274,
 228         K_RIGHTARROW,//SDLK_RIGHT       = 275,
 229         K_LEFTARROW,//SDLK_LEFT         = 276,
 230         K_INS,          //SDLK_INSERT   = 277,
 231         K_HOME,         //SDLK_HOME             = 278,
 232         K_END,          //SDLK_END              = 279,
 233         K_PGUP,         //SDLK_PAGEUP   = 280,
 234         K_PGDN,         //SDLK_PAGEDOWN = 281,
 235         K_F1,           //SDLK_F1               = 282,
 236         K_F2,           //SDLK_F2               = 283,
 237         K_F3,           //SDLK_F3               = 284,
 238         K_F4,           //SDLK_F4               = 285,
 239         K_F5,           //SDLK_F5               = 286,
 240         K_F6,           //SDLK_F6               = 287,
 241         K_F7,           //SDLK_F7               = 288,
 242         K_F8,           //SDLK_F8               = 289,
 243         K_F9,           //SDLK_F9               = 290,
 244         K_F10,          //SDLK_F10              = 291,
 245         K_F11,          //SDLK_F11              = 292,
 246         K_F12,          //SDLK_F12              = 293,
 247         0,                      //SDLK_F13              = 294,
 248         0,                      //SDLK_F14              = 295,
 249         0,                      //SDLK_F15              = 296,
 250         0,0,0,
 251         K_NUMLOCK,      //SDLK_NUMLOCK  = 300,
 252         K_CAPSLOCK,     //SDLK_CAPSLOCK = 301,
 253         K_SCROLLOCK,//SDLK_SCROLLOCK= 302,
 254         K_SHIFT,        //SDLK_RSHIFT   = 303,
 255         K_SHIFT,        //SDLK_LSHIFT   = 304,
 256         K_CTRL,         //SDLK_RCTRL    = 305,
 257         K_CTRL,         //SDLK_LCTRL    = 306,
 258         K_ALT,          //SDLK_RALT             = 307,
 259         K_ALT,          //SDLK_LALT             = 308,
 260         0,                      //SDLK_RMETA    = 309,
 261         0,                      //SDLK_LMETA    = 310,
 262         0,                      //SDLK_LSUPER   = 311,          /* Left "Windows" key */
 263         0,                      //SDLK_RSUPER   = 312,          /* Right "Windows" key */
 264         K_ALT,                  //SDLK_MODE             = 313,          /* "Alt Gr" key */
 265         0,                      //SDLK_COMPOSE  = 314,          /* Multi-key compose key */
 266         0,                      //SDLK_HELP             = 315,
 267         0,                      //SDLK_PRINT    = 316,
 268         0,                      //SDLK_SYSREQ   = 317,
 269         K_PAUSE,        //SDLK_BREAK    = 318,
 270         0,                      //SDLK_MENU             = 319,
 271         0,                      //SDLK_POWER    = 320,          /* Power Macintosh power key */
 272         'e',            //SDLK_EURO             = 321,          /* Some european keyboards */
 273         0                       //SDLK_UNDO             = 322,          /* Atari keyboard has Undo */
 274 };
 275 #undef tenoh
 276 #undef fiftyoh
 277 #undef hundredoh
 278
 279 static int MapKey( unsigned int sdlkey )
 280 {
 281         if( sdlkey > sizeof(tbl_sdltoquake)/ sizeof(int) )
 282                 return 0;
 283     return tbl_sdltoquake[ sdlkey ];
 284 }
 285
 286 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 287 {
 288 #ifdef MACOSX
 289         if(relative)
 290                 if(vid_usingmouse && (vid_usingnoaccel != !!apple_mouse_noaccel.integer))
 291                         VID_SetMouse(false, false, false); // ungrab first!
 292 #endif
 293         if (vid_usingmouse != relative)
 294         {
 295                 vid_usingmouse = relative;
 296                 cl_ignoremousemoves = 2;
 297                 SDL_WM_GrabInput( relative ? SDL_GRAB_ON : SDL_GRAB_OFF );
 298 #ifdef MACOSX
 299                 if(relative)
 300                 {
 301                         // Save the status of mouse acceleration
 302                         originalMouseSpeed = -1.0; // in case of error
 303                         if(apple_mouse_noaccel.integer)
 304                         {
 305                                 io_connect_t mouseDev = IN_GetIOHandle();
 306                                 if(mouseDev != 0)
 307                                 {
 308                                         if(IOHIDGetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), &originalMouseSpeed) == kIOReturnSuccess)
 309                                         {
 310                                                 Con_DPrintf("previous mouse acceleration: %f\n", originalMouseSpeed);
 311                                                 if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), -1.0) != kIOReturnSuccess)
 312                                                 {
 313                                                         Con_Print("Could not disable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 314                                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 315                                                 }
 316                                         }
 317                                         else
 318                                         {
 319                                                 Con_Print("Could not disable mouse acceleration (failed at IOHIDGetAccelerationWithKey).\n");
 320                                                 Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 321                                         }
 322                                         IOServiceClose(mouseDev);
 323                                 }
 324                                 else
 325                                 {
 326                                         Con_Print("Could not disable mouse acceleration (failed at IO_GetIOHandle).\n");
 327                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 328                                 }
 329                         }
 330
 331                         vid_usingnoaccel = !!apple_mouse_noaccel.integer;
 332                 }
 333                 else
 334                 {
 335                         if(originalMouseSpeed != -1.0)
 336                         {
 337                                 io_connect_t mouseDev = IN_GetIOHandle();
 338                                 if(mouseDev != 0)
 339                                 {
 340                                         Con_DPrintf("restoring mouse acceleration to: %f\n", originalMouseSpeed);
 341                                         if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), originalMouseSpeed) != kIOReturnSuccess)
 342                                                 Con_Print("Could not re-enable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 343                                         IOServiceClose(mouseDev);
 344                                 }
 345                                 else
 346                                         Con_Print("Could not re-enable mouse acceleration (failed at IO_GetIOHandle).\n");
 347                         }
 348                 }
 349 #endif
 350         }
 351         if (vid_usinghidecursor != hidecursor)
 352         {
 353                 vid_usinghidecursor = hidecursor;
 354                 SDL_ShowCursor( hidecursor ? SDL_DISABLE : SDL_ENABLE);
 355         }
 356 }
 357
 358 static double IN_JoystickGetAxis(SDL_Joystick *joy, int axis, double sensitivity, double deadzone)
 359 {
 360         double value;
 361         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 362                 return 0; // no such axis on this joystick
 363         value = SDL_JoystickGetAxis(joy, axis) * (1.0 / 32767.0);
 364         value = bound(-1, value, 1);
 365         if (fabs(value) < deadzone)
 366                 return 0; // within deadzone around center
 367         return value * sensitivity;
 368 }
 369
 370 /////////////////////
 371 // Joystick axis keyevents
 372 // a sort of hack emulating Arrow keys for joystick axises
 373 // as some drives dont send such keyevents for them
 374 // additionally we should block drivers that do send arrow keyevents to prevent double events
 375 ////
 376
 377 static void IN_JoystickKeyeventForAxis(SDL_Joystick *joy, int axis, int key_pos, int key_neg)
 378 {
 379         double joytime;
 380
 381         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 382                 return; // no such axis on this joystick
 383
 384         joytime = Sys_DoubleTime();
 385         // no key event, continuous keydown event
 386         if (joy_axescache[axis].move == joy_axescache[axis].oldmove)
 387         {
 388                 if (joy_axescache[axis].move != 0 && joytime > joy_axescache[axis].keytime)
 389                 {
 390                         //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].move > 0) ? key_pos : key_neg), 1, cl.time);
 391                         Key_Event((joy_axescache[axis].move > 0) ? key_pos : key_neg, 0, 1);
 392                         joy_axescache[axis].keytime = joytime + 0.5 / 20;
 393                 }
 394                 return;
 395         }
 396         // generate key up event
 397         if (joy_axescache[axis].oldmove)
 398         {
 399                 //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].oldmove > 0) ? key_pos : key_neg), 1, cl.time);
 400                 Key_Event((joy_axescache[axis].oldmove > 0) ? key_pos : key_neg, 0, 0);
 401         }
 402         // generate key down event
 403         if (joy_axescache[axis].move)
 404         {
 405                 //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].move > 0) ? key_pos : key_neg), 1, cl.time);
 406                 Key_Event((joy_axescache[axis].move > 0) ? key_pos : key_neg, 0, 1);
 407                 joy_axescache[axis].keytime = joytime + 0.5;
 408         }
 409 }
 410
 411 static qboolean IN_JoystickBlockDoubledKeyEvents(int keycode)
 412 {
 413         if (!joy_axiskeyevents.integer)
 414                 return false;
 415
 416         // block keyevent if it's going to be provided by joystick keyevent system
 417         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 418         {
 419                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 420
 421                 if (keycode == K_UPARROW || keycode == K_DOWNARROW)
 422                         if (IN_JoystickGetAxis(joy, joy_axisforward.integer, 1, 0.01) || joy_axescache[joy_axisforward.integer].move || joy_axescache[joy_axisforward.integer].oldmove)
 423                                 return true;
 424                 if (keycode == K_RIGHTARROW || keycode == K_LEFTARROW)
 425                         if (IN_JoystickGetAxis(joy, joy_axisside.integer, 1, 0.01) || joy_axescache[joy_axisside.integer].move || joy_axescache[joy_axisside.integer].oldmove)
 426                                 return true;
 427         }
 428
 429         return false;
 430 }
 431
 432 /////////////////////
 433 // Movement handling
 434 ////
 435
 436 void IN_Move( void )
 437 {
 438         int j;
 439         static int old_x = 0, old_y = 0;
 440         static int stuck = 0;
 441         int x, y, numaxes, numballs;
 442
 443         if (vid_usingmouse)
 444         {
 445                 if(vid_stick_mouse.integer)
 446                 {
 447                         // have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
 448                         // window grabbing. --blub
 449
 450                         // we need 2 frames to initialize the center position
 451                         if(!stuck)
 452                         {
 453                                 SDL_WarpMouse(win_half_width, win_half_height);
 454                                 SDL_GetMouseState(&x, &y);
 455                                 SDL_GetRelativeMouseState(&x, &y);
 456                                 ++stuck;
 457                         } else {
 458                                 SDL_GetRelativeMouseState(&x, &y);
 459                                 in_mouse_x = x + old_x;
 460                                 in_mouse_y = y + old_y;
 461                                 SDL_GetMouseState(&x, &y);
 462                                 old_x = x - win_half_width;
 463                                 old_y = y - win_half_height;
 464                                 SDL_WarpMouse(win_half_width, win_half_height);
 465                         }
 466                 } else {
 467                         SDL_GetRelativeMouseState( &x, &y );
 468                         in_mouse_x = x;
 469                         in_mouse_y = y;
 470                 }
 471         }
 472
 473         SDL_GetMouseState(&x, &y);
 474         in_windowmouse_x = x;
 475         in_windowmouse_y = y;
 476
 477         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 478         {
 479                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 480
 481                 // balls convert to mousemove
 482                 numballs = SDL_JoystickNumBalls(joy);
 483                 for (j = 0;j < numballs;j++)
 484                 {
 485                         SDL_JoystickGetBall(joy, j, &x, &y);
 486                         in_mouse_x += x;
 487                         in_mouse_y += y;
 488                 }
 489
 490                 // axes
 491                 cl.cmd.forwardmove += IN_JoystickGetAxis(joy, joy_axisforward.integer, joy_sensitivityforward.value, joy_deadzoneforward.value) * cl_forwardspeed.value;
 492                 cl.cmd.sidemove    += IN_JoystickGetAxis(joy, joy_axisside.integer, joy_sensitivityside.value, joy_deadzoneside.value) * cl_sidespeed.value;
 493                 cl.cmd.upmove      += IN_JoystickGetAxis(joy, joy_axisup.integer, joy_sensitivityup.value, joy_deadzoneup.value) * cl_upspeed.value;
 494                 cl.viewangles[0]   += IN_JoystickGetAxis(joy, joy_axispitch.integer, joy_sensitivitypitch.value, joy_deadzonepitch.value) * cl.realframetime * cl_pitchspeed.value;
 495                 cl.viewangles[1]   += IN_JoystickGetAxis(joy, joy_axisyaw.integer, joy_sensitivityyaw.value, joy_deadzoneyaw.value) * cl.realframetime * cl_yawspeed.value;
 496                 //cl.viewangles[2]   += IN_JoystickGetAxis(joy, joy_axisroll.integer, joy_sensitivityroll.value, joy_deadzoneroll.value) * cl.realframetime * cl_rollspeed.value;
 497
 498                 // cache state of axes to emulate button events for them
 499                 numaxes = min(MAX_JOYSTICK_AXES, SDL_JoystickNumAxes(joy));
 500                 for (j = 0; j < numaxes; j++)
 501                 {
 502                         joy_axescache[j].oldmove = joy_axescache[j].move;
 503                         joy_axescache[j].move = IN_JoystickGetAxis(joy, j, 1, 0.01);
 504                 }
 505
 506                 // run keyevents
 507                 if (joy_axiskeyevents.integer)
 508                 {
 509                         IN_JoystickKeyeventForAxis(joy, joy_axisforward.integer, K_DOWNARROW, K_UPARROW);
 510                         IN_JoystickKeyeventForAxis(joy, joy_axisside.integer, K_RIGHTARROW, K_LEFTARROW);
 511                 }
 512         }
 513 }
 514
 515 /////////////////////
 516 // Message Handling
 517 ////
 518
 519 static int Sys_EventFilter( SDL_Event *event )
 520 {
 521         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 522         if (event->type == SDL_QUIT)
 523         {
 524 #ifdef WIN32
 525                 if (MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO)
 526                         return 0;
 527 #endif
 528         }
 529         return 1;
 530 }
 531
 532 #ifdef SDL_R_RESTART
 533 static qboolean sdl_needs_restart;
 534 static void sdl_start(void)
 535 {
 536 }
 537 static void sdl_shutdown(void)
 538 {
 539         sdl_needs_restart = false;
 540 }
 541 static void sdl_newmap(void)
 542 {
 543 }
 544 #endif
 545
 546 static keynum_t buttonremap[18] =
 547 {
 548         K_MOUSE1,
 549         K_MOUSE3,
 550         K_MOUSE2,
 551         K_MWHEELUP,
 552         K_MWHEELDOWN,
 553         K_MOUSE4,
 554         K_MOUSE5,
 555         K_MOUSE6,
 556         K_MOUSE7,
 557         K_MOUSE8,
 558         K_MOUSE9,
 559         K_MOUSE10,
 560         K_MOUSE11,
 561         K_MOUSE12,
 562         K_MOUSE13,
 563         K_MOUSE14,
 564         K_MOUSE15,
 565         K_MOUSE16,
 566 };
 567
 568 void Sys_SendKeyEvents( void )
 569 {
 570         static qboolean sound_active = true;
 571         int keycode;
 572         SDL_Event event;
 573
 574         while( SDL_PollEvent( &event ) )
 575                 switch( event.type ) {
 576                         case SDL_QUIT:
 577                                 Sys_Quit(0);
 578                                 break;
 579                         case SDL_KEYDOWN:
 580                         case SDL_KEYUP:
 581                                 keycode = MapKey(event.key.keysym.sym);
 582                                 if (!IN_JoystickBlockDoubledKeyEvents(keycode))
 583                                         Key_Event(keycode, event.key.keysym.unicode, (event.key.state == SDL_PRESSED));
 584                                 break;
 585                         case SDL_ACTIVEEVENT:
 586                                 if( event.active.state & SDL_APPACTIVE )
 587                                 {
 588                                         if( event.active.gain )
 589                                                 vid_hidden = false;
 590                                         else
 591                                                 vid_hidden = true;
 592                                 }
 593                                 break;
 594                         case SDL_MOUSEBUTTONDOWN:
 595                         case SDL_MOUSEBUTTONUP:
 596                                 if (event.button.button <= 18)
 597                                         Key_Event( buttonremap[event.button.button - 1], 0, event.button.state == SDL_PRESSED );
 598                                 break;
 599                         case SDL_JOYBUTTONDOWN:
 600                                 if (!joy_enable.integer)
 601                                         break; // ignore down events if joystick has been disabled
 602                         case SDL_JOYBUTTONUP:
 603                                 if (event.jbutton.button < 48)
 604                                         Key_Event( event.jbutton.button + (event.jbutton.button < 16 ? K_JOY1 : K_AUX1 - 16), 0, (event.jbutton.state == SDL_PRESSED) );
 605                                 break;
 606                         case SDL_VIDEORESIZE:
 607                                 if(vid_resizable.integer < 2)
 608                                 {
 609                                         vid.width = event.resize.w;
 610                                         vid.height = event.resize.h;
 611                                         SDL_SetVideoMode(vid.width, vid.height, video_bpp, video_flags);
 612                                         if (vid_softsurface)
 613                                         {
 614                                                 SDL_FreeSurface(vid_softsurface);
 615                                                 vid_softsurface = SDL_CreateRGBSurface(SDL_SWSURFACE, vid.width, vid.height, 32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000);
 616                                                 vid.softpixels = vid_softsurface->pixels;
 617                                                 SDL_SetAlpha(vid_softsurface, 0, 255);
 618                                                 if (vid.softdepthpixels)
 619                                                         free(vid.softdepthpixels);
 620                                                 vid.softdepthpixels = calloc(1, vid.width * vid.height * 4);
 621                                         }
 622 #ifdef SDL_R_RESTART
 623                                         // better not call R_Modules_Restart from here directly, as this may wreak havoc...
 624                                         // so, let's better queue it for next frame
 625                                         if(!sdl_needs_restart)
 626                                         {
 627                                                 Cbuf_AddText("\nr_restart\n");
 628                                                 sdl_needs_restart = true;
 629                                         }
 630 #endif
 631                                 }
 632                                 break;
 633                 }
 634
 635         // enable/disable sound on focus gain/loss
 636         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
 637         {
 638                 if (!sound_active)
 639                 {
 640                         S_UnblockSound ();
 641                         sound_active = true;
 642                 }
 643         }
 644         else
 645         {
 646                 if (sound_active)
 647                 {
 648                         S_BlockSound ();
 649                         sound_active = false;
 650                 }
 651         }
 652 }
 653
 654 /////////////////
 655 // Video system
 656 ////
 657
 658 void *GL_GetProcAddress(const char *name)
 659 {
 660         void *p = NULL;
 661         p = SDL_GL_GetProcAddress(name);
 662         return p;
 663 }
 664
 665 static int Sys_EventFilter( SDL_Event *event );
 666 static qboolean vid_sdl_initjoysticksystem = false;
 667
 668 void VID_Init (void)
 669 {
 670 #ifdef MACOSX
 671         Cvar_RegisterVariable(&apple_mouse_noaccel);
 672 #endif
 673         Cvar_RegisterVariable(&vid_soft);
 674         Cvar_RegisterVariable(&joy_detected);
 675         Cvar_RegisterVariable(&joy_enable);
 676         Cvar_RegisterVariable(&joy_index);
 677         Cvar_RegisterVariable(&joy_axisforward);
 678         Cvar_RegisterVariable(&joy_axisside);
 679         Cvar_RegisterVariable(&joy_axisup);
 680         Cvar_RegisterVariable(&joy_axispitch);
 681         Cvar_RegisterVariable(&joy_axisyaw);
 682         //Cvar_RegisterVariable(&joy_axisroll);
 683         Cvar_RegisterVariable(&joy_deadzoneforward);
 684         Cvar_RegisterVariable(&joy_deadzoneside);
 685         Cvar_RegisterVariable(&joy_deadzoneup);
 686         Cvar_RegisterVariable(&joy_deadzonepitch);
 687         Cvar_RegisterVariable(&joy_deadzoneyaw);
 688         //Cvar_RegisterVariable(&joy_deadzoneroll);
 689         Cvar_RegisterVariable(&joy_sensitivityforward);
 690         Cvar_RegisterVariable(&joy_sensitivityside);
 691         Cvar_RegisterVariable(&joy_sensitivityup);
 692         Cvar_RegisterVariable(&joy_sensitivitypitch);
 693         Cvar_RegisterVariable(&joy_sensitivityyaw);
 694         //Cvar_RegisterVariable(&joy_sensitivityroll);
 695         Cvar_RegisterVariable(&joy_axiskeyevents);
 696
 697 #ifdef SDL_R_RESTART
 698         R_RegisterModule("SDL", sdl_start, sdl_shutdown, sdl_newmap, NULL, NULL);
 699 #endif
 700
 701         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 702                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
 703         vid_sdl_initjoysticksystem = SDL_InitSubSystem(SDL_INIT_JOYSTICK) >= 0;
 704         if (vid_sdl_initjoysticksystem)
 705                 Con_Printf("Failed to init SDL joystick subsystem: %s\n", SDL_GetError());
 706         vid_isfullscreen = false;
 707 }
 708
 709 // set the icon (we dont use SDL here since it would be too much a PITA)
 710 #ifdef WIN32
 711 #include "resource.h"
 712 #include <SDL_syswm.h>
 713 static void VID_SetCaption(void)
 714 {
 715     SDL_SysWMinfo       info;
 716         HICON                   icon;
 717
 718         // set the caption
 719         SDL_WM_SetCaption( gamename, NULL );
 720
 721         // get the HWND handle
 722     SDL_VERSION( &info.version );
 723         if( !SDL_GetWMInfo( &info ) )
 724                 return;
 725
 726         icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 727 #ifndef _W64 //If Windows 64bit data types don't exist
 728 #ifndef SetClassLongPtr
 729 #define SetClassLongPtr SetClassLong
 730 #endif
 731 #ifndef GCLP_HICON
 732 #define GCLP_HICON GCL_HICON
 733 #endif
 734 #ifndef LONG_PTR
 735 #define LONG_PTR LONG
 736 #endif
 737 #endif
 738         SetClassLongPtr( info.window, GCLP_HICON, (LONG_PTR)icon );
 739 }
 740 static void VID_SetIcon_Pre(void)
 741 {
 742 }
 743 static void VID_SetIcon_Post(void)
 744 {
 745 }
 746 #else
 747 // Adding the OS independent XPM version --blub
 748 #include "darkplaces.xpm"
 749 #include "nexuiz.xpm"
 750 static SDL_Surface *icon = NULL;
 751 static void VID_SetIcon_Pre(void)
 752 {
 753         /*
 754          * Somewhat restricted XPM reader. Only supports XPMs saved by GIMP 2.4 at
 755          * default settings with less than 91 colors and transparency.
 756          */
 757
 758         int width, height, colors, isize, i, j;
 759         int thenone = -1;
 760         static SDL_Color palette[256];
 761         unsigned short palenc[256]; // store color id by char
 762         char *xpm;
 763         char **idata, *data;
 764         const SDL_version *version;
 765
 766         version = SDL_Linked_Version();
 767         // only use non-XPM icon support in SDL v1.3 and higher
 768         // SDL v1.2 does not support "smooth" transparency, and thus is better
 769         // off the xpm way
 770         if(version->major >= 2 || (version->major == 1 && version->minor >= 3))
 771         {
 772                 data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 773                 if(data)
 774                 {
 775                         unsigned int red = 0x00FF0000;
 776                         unsigned int green = 0x0000FF00;
 777                         unsigned int blue = 0x000000FF;
 778                         unsigned int alpha = 0xFF000000;
 779                         width = image_width;
 780                         height = image_height;
 781
 782                         // reallocate with malloc, as this is in tempmempool (do not want)
 783                         xpm = data;
 784                         data = malloc(width * height * 4);
 785                         memcpy(data, xpm, width * height * 4);
 786                         Mem_Free(xpm);
 787                         xpm = NULL;
 788
 789                         icon = SDL_CreateRGBSurface(SDL_SRCALPHA, width, height, 32, LittleLong(red), LittleLong(green), LittleLong(blue), LittleLong(alpha));
 790
 791                         if(icon == NULL) {
 792                                 Con_Printf(     "Failed to create surface for the window Icon!\n"
 793                                                 "%s\n", SDL_GetError());
 794                                 free(data);
 795                                 return;
 796                         }
 797
 798                         icon->pixels = data;
 799                 }
 800         }
 801
 802         // we only get here if non-XPM icon was missing, or SDL version is not
 803         // sufficient for transparent non-XPM icons
 804         if(!icon)
 805         {
 806                 xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
 807                 idata = NULL;
 808                 if(xpm)
 809                         idata = XPM_DecodeString(xpm);
 810                 if(!idata)
 811                         idata = ENGINE_ICON;
 812                 if(xpm)
 813                         Mem_Free(xpm);
 814
 815                 data = idata[0];
 816
 817                 if(sscanf(data, "%i %i %i %i", &width, &height, &colors, &isize) != 4)
 818                 {
 819                         // NOTE: Only 1-char colornames are supported
 820                         Con_Printf("Sorry, but this does not even look similar to an XPM.\n");
 821                         return;
 822                 }
 823
 824                 if(isize != 1)
 825                 {
 826                         // NOTE: Only 1-char colornames are supported
 827                         Con_Printf("This XPM's palette is either huge or idiotically unoptimized. It's key size is %i\n", isize);
 828                         return;
 829                 }
 830
 831                 for(i = 0; i < colors; ++i)
 832                 {
 833                         unsigned int r, g, b;
 834                         char idx;
 835
 836                         if(sscanf(idata[i+1], "%c c #%02x%02x%02x", &idx, &r, &g, &b) != 4)
 837                         {
 838                                 char foo[2];
 839                                 if(sscanf(idata[i+1], "%c c Non%1[e]", &idx, foo) != 2) // I take the DailyWTF credit for this. --div0
 840                                 {
 841                                         Con_Printf("This XPM's palette looks odd. Can't continue.\n");
 842                                         return;
 843                                 }
 844                                 else
 845                                 {
 846                                         palette[i].r = 255; // color key
 847                                         palette[i].g = 0;
 848                                         palette[i].b = 255;
 849                                         thenone = i; // weeeee
 850                                 }
 851                         }
 852                         else
 853                         {
 854                                 palette[i].r = r - (r == 255 && g == 0 && b == 255); // change 255/0/255 pink to 254/0/255 for color key
 855                                 palette[i].g = g;
 856                                 palette[i].b = b;
 857                         }
 858
 859                         palenc[(unsigned char) idx] = i;
 860                 }
 861
 862                 // allocate the image data
 863                 data = (char*) malloc(width*height);
 864
 865                 for(j = 0; j < height; ++j)
 866                 {
 867                         for(i = 0; i < width; ++i)
 868                         {
 869                                 // casting to the safest possible datatypes ^^
 870                                 data[j * width + i] = palenc[((unsigned char*)idata[colors+j+1])[i]];
 871                         }
 872                 }
 873
 874                 if(icon != NULL)
 875                 {
 876                         // SDL_FreeSurface should free the data too
 877                         // but for completeness' sake...
 878                         if(icon->flags & SDL_PREALLOC)
 879                         {
 880                                 free(icon->pixels);
 881                                 icon->pixels = NULL; // safety
 882                         }
 883                         SDL_FreeSurface(icon);
 884                 }
 885
 886                 icon = SDL_CreateRGBSurface(SDL_SRCCOLORKEY, width, height, 8, 0,0,0,0);// rmask, gmask, bmask, amask); no mask needed
 887                 // 8 bit surfaces get an empty palette allocated according to the docs
 888                 // so it's a palette image for sure :) no endian check necessary for the mask
 889
 890                 if(icon == NULL) {
 891                         Con_Printf(     "Failed to create surface for the window Icon!\n"
 892                                         "%s\n", SDL_GetError());
 893                         free(data);
 894                         return;
 895                 }
 896
 897                 icon->pixels = data;
 898                 SDL_SetPalette(icon, SDL_PHYSPAL|SDL_LOGPAL, palette, 0, colors);
 899                 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, thenone);
 900         }
 901
 902         SDL_WM_SetIcon(icon, NULL);
 903 }
 904 static void VID_SetIcon_Post(void)
 905 {
 906 #if SDL_VIDEO_DRIVER_X11 && !SDL_VIDEO_DRIVER_QUARTZ
 907         int j;
 908         char *data;
 909         const SDL_version *version;
 910
 911         version = SDL_Linked_Version();
 912         // only use non-XPM icon support in SDL v1.3 and higher
 913         // SDL v1.2 does not support "smooth" transparency, and thus is better
 914         // off the xpm way
 915         if(!(version->major >= 2 || (version->major == 1 && version->minor >= 3)))
 916         {
 917                 // in this case, we did not set the good icon yet
 918                 SDL_SysWMinfo info;
 919                 SDL_VERSION(&info.version);
 920                 if(SDL_GetWMInfo(&info) == 1 && info.subsystem == SDL_SYSWM_X11)
 921                 {
 922                         data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 923                         if(data)
 924                         {
 925                                 // use _NET_WM_ICON too
 926                                 static long netwm_icon[MAX_NETWM_ICON];
 927                                 int pos = 0;
 928                                 int i = 1;
 929
 930                                 while(data)
 931                                 {
 932                                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
 933                                         {
 934                                                 netwm_icon[pos++] = image_width;
 935                                                 netwm_icon[pos++] = image_height;
 936                                                 for(i = 0; i < image_height; ++i)
 937                                                         for(j = 0; j < image_width; ++j)
 938                                                                 netwm_icon[pos++] = BuffLittleLong((unsigned char *) &data[(i*image_width+j)*4]);
 939                                         }
 940                                         else
 941                                         {
 942                                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
 943                                         }
 944                                         ++i;
 945                                         Mem_Free(data);
 946                                         data = (char *) loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
 947                                 }
 948
 949                                 info.info.x11.lock_func();
 950                                 {
 951                                         Atom net_wm_icon = XInternAtom(info.info.x11.display, "_NET_WM_ICON", false);
 952                                         XChangeProperty(info.info.x11.display, info.info.x11.wmwindow, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
 953                                 }
 954                                 info.info.x11.unlock_func();
 955                         }
 956                 }
 957         }
 958 #endif
 959 }
 960
 961
 962 static void VID_SetCaption(void)
 963 {
 964         SDL_WM_SetCaption( gamename, NULL );
 965 }
 966 #endif
 967
 968 static void VID_OutputVersion(void)
 969 {
 970         const SDL_version *version;
 971         version = SDL_Linked_Version();
 972         Con_Printf(     "Linked against SDL version %d.%d.%d\n"
 973                                         "Using SDL library version %d.%d.%d\n",
 974                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
 975                                         version->major, version->minor, version->patch );
 976 }
 977
 978 qboolean VID_InitModeGL(viddef_mode_t *mode)
 979 {
 980         int i;
 981         static int notfirstvideomode = false;
 982         int flags = SDL_OPENGL;
 983         const char *drivername;
 984
 985         win_half_width = mode->width>>1;
 986         win_half_height = mode->height>>1;
 987
 988         if(vid_resizable.integer)
 989                 flags |= SDL_RESIZABLE;
 990
 991         VID_OutputVersion();
 992
 993         /*
 994         SDL Hack
 995                 We cant switch from one OpenGL video mode to another.
 996                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
 997         */
 998         if (notfirstvideomode)
 999                 SDL_SetVideoMode( 0, 0, 0, 0 );
1000         notfirstvideomode = true;
1001
1002         // SDL usually knows best
1003         drivername = NULL;
1004
1005 // 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
1006         i = COM_CheckParm("-gl_driver");
1007         if (i && i < com_argc - 1)
1008                 drivername = com_argv[i + 1];
1009         if (SDL_GL_LoadLibrary(drivername) < 0)
1010         {
1011                 Con_Printf("Unable to load GL driver \"%s\": %s\n", drivername, SDL_GetError());
1012                 return false;
1013         }
1014
1015         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1016         {
1017                 VID_Shutdown();
1018                 Con_Print("Required OpenGL function glGetString not found\n");
1019                 return false;
1020         }
1021
1022         // Knghtbrd: should do platform-specific extension string function here
1023
1024         vid_isfullscreen = false;
1025         if (mode->fullscreen) {
1026                 flags |= SDL_FULLSCREEN;
1027                 vid_isfullscreen = true;
1028         }
1029         //flags |= SDL_HWSURFACE;
1030
1031         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
1032         if (mode->bitsperpixel >= 32)
1033         {
1034                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 8);
1035                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 8);
1036                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 8);
1037                 SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 8);
1038                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
1039                 SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 8);
1040         }
1041         else
1042         {
1043                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
1044                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
1045                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
1046                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
1047         }
1048         if (mode->stereobuffer)
1049                 SDL_GL_SetAttribute (SDL_GL_STEREO, 1);
1050         if (vid_vsync.integer)
1051                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 1);
1052         else
1053                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 0);
1054         if (mode->samples > 1)
1055         {
1056                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
1057                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, mode->samples);
1058         }
1059
1060         video_bpp = mode->bitsperpixel;
1061         video_flags = flags;
1062         VID_SetIcon_Pre();
1063         screen = SDL_SetVideoMode(mode->width, mode->height, mode->bitsperpixel, flags);
1064         VID_SetIcon_Post();
1065
1066         if (screen == NULL)
1067         {
1068                 Con_Printf("Failed to set video mode to %ix%i: %s\n", mode->width, mode->height, SDL_GetError());
1069                 VID_Shutdown();
1070                 return false;
1071         }
1072
1073         vid_softsurface = NULL;
1074         vid.softpixels = NULL;
1075
1076         // set window title
1077         VID_SetCaption();
1078         // set up an event filter to ask confirmation on close button in WIN32
1079         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
1080         // init keyboard
1081         SDL_EnableUNICODE( SDL_ENABLE );
1082         // enable key repeat since everyone expects it
1083         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
1084
1085         gl_platform = "SDL";
1086         gl_platformextensions = "";
1087
1088         GL_Init();
1089
1090         vid_numjoysticks = SDL_NumJoysticks();
1091         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
1092         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
1093         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
1094         memset(vid_joysticks, 0, sizeof(vid_joysticks));
1095         for (i = 0;i < vid_numjoysticks;i++)
1096         {
1097                 SDL_Joystick *joy;
1098                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
1099                 if (!joy)
1100                 {
1101                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
1102                         continue;
1103                 }
1104                 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));
1105         }
1106
1107         vid_hidden = false;
1108         vid_activewindow = false;
1109         vid_usingmouse = false;
1110         vid_usinghidecursor = false;
1111
1112         SDL_WM_GrabInput(SDL_GRAB_OFF);
1113         return true;
1114 }
1115
1116 extern cvar_t gl_info_extensions;
1117 extern cvar_t gl_info_vendor;
1118 extern cvar_t gl_info_renderer;
1119 extern cvar_t gl_info_version;
1120 extern cvar_t gl_info_platform;
1121 extern cvar_t gl_info_driver;
1122
1123 qboolean VID_InitModeSoft(viddef_mode_t *mode)
1124 {
1125         int i;
1126         int flags = SDL_HWSURFACE;
1127
1128         win_half_width = mode->width>>1;
1129         win_half_height = mode->height>>1;
1130
1131         if(vid_resizable.integer)
1132                 flags |= SDL_RESIZABLE;
1133
1134         VID_OutputVersion();
1135
1136         vid_isfullscreen = false;
1137         if (mode->fullscreen) {
1138                 flags |= SDL_FULLSCREEN;
1139                 vid_isfullscreen = true;
1140         }
1141
1142         video_bpp = mode->bitsperpixel;
1143         video_flags = flags;
1144         VID_SetIcon_Pre();
1145         screen = SDL_SetVideoMode(mode->width, mode->height, mode->bitsperpixel, flags);
1146         VID_SetIcon_Post();
1147
1148         if (screen == NULL)
1149         {
1150                 Con_Printf("Failed to set video mode to %ix%i: %s\n", mode->width, mode->height, SDL_GetError());
1151                 VID_Shutdown();
1152                 return false;
1153         }
1154
1155         // create a framebuffer using our specific color format, we let the SDL blit function convert it in VID_Finish
1156         vid_softsurface = SDL_CreateRGBSurface(SDL_SWSURFACE, mode->width, mode->height, 32, 0x00FF0000, 0x0000FF00, 0x00000000FF, 0xFF000000);
1157         if (vid_softsurface == NULL)
1158         {
1159                 Con_Printf("Failed to setup software rasterizer framebuffer %ix%ix32bpp: %s\n", mode->width, mode->height, SDL_GetError());
1160                 VID_Shutdown();
1161                 return false;
1162         }
1163         SDL_SetAlpha(vid_softsurface, 0, 255);
1164
1165         vid.softpixels = vid_softsurface->pixels;
1166         vid.softdepthpixels = calloc(1, mode->width * mode->height * 4);
1167         DPSOFTRAST_Init(mode->width, mode->height, vid_softsurface->pixels, vid.softdepthpixels);
1168
1169         // set window title
1170         VID_SetCaption();
1171         // set up an event filter to ask confirmation on close button in WIN32
1172         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
1173         // init keyboard
1174         SDL_EnableUNICODE( SDL_ENABLE );
1175         // enable key repeat since everyone expects it
1176         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
1177
1178         gl_platform = "SDLSoft";
1179         gl_platformextensions = "";
1180
1181         gl_renderer = "DarkPlaces-Soft";
1182         gl_vendor = "Forest Hale";
1183         gl_version = "0.0";
1184         gl_extensions = "";
1185
1186         // clear the extension flags
1187         memset(&vid.support, 0, sizeof(vid.support));
1188         Cvar_SetQuick(&gl_info_extensions, "");
1189
1190         vid.forcevbo = false;
1191         vid.support.arb_depth_texture = true;
1192         vid.support.arb_draw_buffers = true;
1193         vid.support.arb_occlusion_query = true;
1194         vid.support.arb_shadow = true;
1195         vid.support.arb_texture_compression = true;
1196         vid.support.arb_texture_cube_map = true;
1197         vid.support.arb_texture_non_power_of_two = false;
1198         vid.support.arb_vertex_buffer_object = true;
1199         vid.support.ext_blend_subtract = true;
1200         vid.support.ext_draw_range_elements = true;
1201         vid.support.ext_framebuffer_object = true;
1202         vid.support.ext_texture_3d = true;
1203         vid.support.ext_texture_compression_s3tc = true;
1204         vid.support.ext_texture_filter_anisotropic = true;
1205         vid.support.ati_separate_stencil = true;
1206
1207         vid.maxtexturesize_2d = 16384;
1208         vid.maxtexturesize_3d = 512;
1209         vid.maxtexturesize_cubemap = 16384;
1210         vid.texunits = 4;
1211         vid.teximageunits = 32;
1212         vid.texarrayunits = 8;
1213         vid.max_anisotropy = 1;
1214         vid.maxdrawbuffers = 4;
1215
1216         vid.texunits = bound(4, vid.texunits, MAX_TEXTUREUNITS);
1217         vid.teximageunits = bound(16, vid.teximageunits, MAX_TEXTUREUNITS);
1218         vid.texarrayunits = bound(8, vid.texarrayunits, MAX_TEXTUREUNITS);
1219         Con_DPrintf("Using DarkPlaces Software Rasterizer rendering path\n");
1220         vid.renderpath = RENDERPATH_SOFT;
1221         vid.useinterleavedarrays = false;
1222
1223         Cvar_SetQuick(&gl_info_vendor, gl_vendor);
1224         Cvar_SetQuick(&gl_info_renderer, gl_renderer);
1225         Cvar_SetQuick(&gl_info_version, gl_version);
1226         Cvar_SetQuick(&gl_info_platform, gl_platform ? gl_platform : "");
1227         Cvar_SetQuick(&gl_info_driver, gl_driver);
1228
1229         // LordHavoc: report supported extensions
1230         Con_DPrintf("\nQuakeC extensions for server and client: %s\nQuakeC extensions for menu: %s\n", vm_sv_extensions, vm_m_extensions );
1231
1232         // clear to black (loading plaque will be seen over this)
1233         GL_Clear(GL_COLOR_BUFFER_BIT, NULL, 1.0f, 128);
1234
1235         vid_numjoysticks = SDL_NumJoysticks();
1236         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
1237         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
1238         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
1239         memset(vid_joysticks, 0, sizeof(vid_joysticks));
1240         for (i = 0;i < vid_numjoysticks;i++)
1241         {
1242                 SDL_Joystick *joy;
1243                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
1244                 if (!joy)
1245                 {
1246                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
1247                         continue;
1248                 }
1249                 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));
1250         }
1251
1252         vid_hidden = false;
1253         vid_activewindow = false;
1254         vid_usingmouse = false;
1255         vid_usinghidecursor = false;
1256
1257         SDL_WM_GrabInput(SDL_GRAB_OFF);
1258         return true;
1259 }
1260
1261 qboolean VID_InitMode(viddef_mode_t *mode)
1262 {
1263         if (!SDL_WasInit(SDL_INIT_VIDEO) && SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
1264                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
1265         if (vid_soft.integer)
1266                 return VID_InitModeSoft(mode);
1267         else
1268                 return VID_InitModeGL(mode);
1269 }
1270
1271 void VID_Shutdown (void)
1272 {
1273         VID_SetMouse(false, false, false);
1274         VID_RestoreSystemGamma();
1275
1276 #ifndef WIN32
1277         if (icon)
1278                 SDL_FreeSurface(icon);
1279         icon = NULL;
1280 #endif
1281
1282         if (vid_softsurface)
1283                 SDL_FreeSurface(vid_softsurface);
1284         vid_softsurface = NULL;
1285         vid.softpixels = NULL;
1286         if (vid.softdepthpixels)
1287                 free(vid.softdepthpixels);
1288         vid.softdepthpixels = NULL;
1289
1290         SDL_QuitSubSystem(SDL_INIT_VIDEO);
1291
1292         gl_driver[0] = 0;
1293         gl_extensions = "";
1294         gl_platform = "";
1295         gl_platformextensions = "";
1296 }
1297
1298 int VID_SetGamma (unsigned short *ramps, int rampsize)
1299 {
1300         return !SDL_SetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1301 }
1302
1303 int VID_GetGamma (unsigned short *ramps, int rampsize)
1304 {
1305         return !SDL_GetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1306 }
1307
1308 void VID_Finish (void)
1309 {
1310         Uint8 appstate;
1311
1312         //react on appstate changes
1313         appstate = SDL_GetAppState();
1314
1315         vid_hidden = !(appstate & SDL_APPACTIVE);
1316
1317         if( vid_hidden || !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
1318                 vid_activewindow = false;
1319         else
1320                 vid_activewindow = true;
1321
1322         VID_UpdateGamma(false, 256);
1323
1324         if (!vid_hidden)
1325         {
1326                 switch(vid.renderpath)
1327                 {
1328                 case RENDERPATH_GL11:
1329                 case RENDERPATH_GL13:
1330                 case RENDERPATH_GL20:
1331                 case RENDERPATH_CGGL:
1332                         CHECKGLERROR
1333                         if (r_speeds.integer == 2 || gl_finish.integer)
1334                         {
1335                                 qglFinish();CHECKGLERROR
1336                         }
1337                         SDL_GL_SwapBuffers();
1338                         break;
1339                 case RENDERPATH_SOFT:
1340                         SDL_BlitSurface(vid_softsurface, NULL, screen, NULL);
1341                         SDL_Flip(screen);
1342                         break;
1343                 case RENDERPATH_D3D9:
1344                 case RENDERPATH_D3D10:
1345                 case RENDERPATH_D3D11:
1346                         break;
1347                 }
1348         }
1349 }
1350
1351 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1352 {
1353         size_t k;
1354         SDL_Rect **vidmodes;
1355         int bpp = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
1356
1357         k = 0;
1358         for(vidmodes = SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_HWSURFACE); *vidmodes; ++vidmodes)
1359         {
1360                 if(k >= maxcount)
1361                         break;
1362                 modes[k].width = (*vidmodes)->w;
1363                 modes[k].height = (*vidmodes)->h;
1364                 modes[k].bpp = bpp;
1365                 modes[k].refreshrate = 60; // no support for refresh rate in SDL
1366                 modes[k].pixelheight_num = 1;
1367                 modes[k].pixelheight_denom = 1; // SDL does not provide this
1368                 ++k;
1369         }
1370         return k;
1371 }