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 #ifndef __IPHONEOS__
  29 #ifdef MACOSX
  30 #include <Carbon/Carbon.h>
  31 #include <IOKit/hidsystem/IOHIDLib.h>
  32 #include <IOKit/hidsystem/IOHIDParameter.h>
  33 #include <IOKit/hidsystem/event_status_driver.h>
  34 static cvar_t apple_mouse_noaccel = {CVAR_SAVE, "apple_mouse_noaccel", "1", "disables mouse acceleration while DarkPlaces is active"};
  35 static qboolean vid_usingnoaccel;
  36 static double originalMouseSpeed = -1.0;
  37 io_connect_t IN_GetIOHandle(void)
  38 {
  39         io_connect_t iohandle = MACH_PORT_NULL;
  40         kern_return_t status;
  41         io_service_t iohidsystem = MACH_PORT_NULL;
  42         mach_port_t masterport;
  43
  44         status = IOMasterPort(MACH_PORT_NULL, &masterport);
  45         if(status != KERN_SUCCESS)
  46                 return 0;
  47
  48         iohidsystem = IORegistryEntryFromPath(masterport, kIOServicePlane ":/IOResources/IOHIDSystem");
  49         if(!iohidsystem)
  50                 return 0;
  51
  52         status = IOServiceOpen(iohidsystem, mach_task_self(), kIOHIDParamConnectType, &iohandle);
  53         IOObjectRelease(iohidsystem);
  54
  55         return iohandle;
  56 }
  57 #endif
  58 #endif
  59
  60 #ifdef WIN32
  61 #define SDL_R_RESTART
  62 #endif
  63
  64 // Tell startup code that we have a client
  65 int cl_available = true;
  66
  67 qboolean vid_supportrefreshrate = false;
  68
  69 cvar_t vid_soft = {CVAR_SAVE, "vid_soft", "0", "enables use of the DarkPlaces Software Rasterizer rather than OpenGL or Direct3D"};
  70 cvar_t vid_soft_threads = {CVAR_SAVE, "vid_soft_threads", "2", "the number of threads the DarkPlaces Software Rasterizer should use"};
  71 cvar_t joy_detected = {CVAR_READONLY, "joy_detected", "0", "number of joysticks detected by engine"};
  72 cvar_t joy_enable = {CVAR_SAVE, "joy_enable", "0", "enables joystick support"};
  73 cvar_t joy_index = {0, "joy_index", "0", "selects which joystick to use if you have multiple"};
  74 cvar_t joy_axisforward = {0, "joy_axisforward", "1", "which joystick axis to query for forward/backward movement"};
  75 cvar_t joy_axisside = {0, "joy_axisside", "0", "which joystick axis to query for right/left movement"};
  76 cvar_t joy_axisup = {0, "joy_axisup", "-1", "which joystick axis to query for up/down movement"};
  77 cvar_t joy_axispitch = {0, "joy_axispitch", "3", "which joystick axis to query for looking up/down"};
  78 cvar_t joy_axisyaw = {0, "joy_axisyaw", "2", "which joystick axis to query for looking right/left"};
  79 cvar_t joy_axisroll = {0, "joy_axisroll", "-1", "which joystick axis to query for tilting head right/left"};
  80 cvar_t joy_deadzoneforward = {0, "joy_deadzoneforward", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  81 cvar_t joy_deadzoneside = {0, "joy_deadzoneside", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  82 cvar_t joy_deadzoneup = {0, "joy_deadzoneup", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  83 cvar_t joy_deadzonepitch = {0, "joy_deadzonepitch", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  84 cvar_t joy_deadzoneyaw = {0, "joy_deadzoneyaw", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  85 cvar_t joy_deadzoneroll = {0, "joy_deadzoneroll", "0", "deadzone tolerance, suggested values are in the range 0 to 0.01"};
  86 cvar_t joy_sensitivityforward = {0, "joy_sensitivityforward", "-1", "movement multiplier"};
  87 cvar_t joy_sensitivityside = {0, "joy_sensitivityside", "1", "movement multiplier"};
  88 cvar_t joy_sensitivityup = {0, "joy_sensitivityup", "1", "movement multiplier"};
  89 cvar_t joy_sensitivitypitch = {0, "joy_sensitivitypitch", "1", "movement multiplier"};
  90 cvar_t joy_sensitivityyaw = {0, "joy_sensitivityyaw", "-1", "movement multiplier"};
  91 cvar_t joy_sensitivityroll = {0, "joy_sensitivityroll", "1", "movement multiplier"};
  92 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"};
  93
  94 static qboolean vid_usingmouse = false;
  95 static qboolean vid_usinghidecursor = false;
  96 static qboolean vid_isfullscreen;
  97 #if !(SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2)
  98 static qboolean vid_usingvsync = false;
  99 #endif
 100 static int vid_numjoysticks = 0;
 101 #define MAX_JOYSTICKS 8
 102 static SDL_Joystick *vid_joysticks[MAX_JOYSTICKS];
 103
 104 static int win_half_width = 50;
 105 static int win_half_height = 50;
 106 static int video_bpp, video_flags;
 107
 108 static SDL_Surface *screen;
 109 static SDL_Surface *vid_softsurface;
 110
 111 // joystick axes state
 112 #define MAX_JOYSTICK_AXES       16
 113 typedef struct
 114 {
 115         float oldmove;
 116         float move;
 117         double keytime;
 118 }joy_axiscache_t;
 119 static joy_axiscache_t joy_axescache[MAX_JOYSTICK_AXES];
 120
 121 /////////////////////////
 122 // Input handling
 123 ////
 124 //TODO: Add joystick support
 125 //TODO: Add error checking
 126
 127
 128 //keysym to quake keysym mapping
 129 #define tenoh   0,0,0,0,0, 0,0,0,0,0
 130 #define fiftyoh tenoh, tenoh, tenoh, tenoh, tenoh
 131 #define hundredoh fiftyoh, fiftyoh
 132 static unsigned int tbl_sdltoquake[] =
 133 {
 134         0,0,0,0,                //SDLK_UNKNOWN          = 0,
 135         0,0,0,0,                //SDLK_FIRST            = 0,
 136         K_BACKSPACE,    //SDLK_BACKSPACE        = 8,
 137         K_TAB,                  //SDLK_TAB                      = 9,
 138         0,0,
 139         0,                              //SDLK_CLEAR            = 12,
 140         K_ENTER,                //SDLK_RETURN           = 13,
 141     0,0,0,0,0,
 142         K_PAUSE,                //SDLK_PAUSE            = 19,
 143         0,0,0,0,0,0,0,
 144         K_ESCAPE,               //SDLK_ESCAPE           = 27,
 145         0,0,0,0,
 146         K_SPACE,                //SDLK_SPACE            = 32,
 147         '!',                    //SDLK_EXCLAIM          = 33,
 148         '"',                    //SDLK_QUOTEDBL         = 34,
 149         '#',                    //SDLK_HASH                     = 35,
 150         '$',                    //SDLK_DOLLAR           = 36,
 151         0,
 152         '&',                    //SDLK_AMPERSAND        = 38,
 153         '\'',                   //SDLK_QUOTE            = 39,
 154         '(',                    //SDLK_LEFTPAREN        = 40,
 155         ')',                    //SDLK_RIGHTPAREN       = 41,
 156         '*',                    //SDLK_ASTERISK         = 42,
 157         '+',                    //SDLK_PLUS                     = 43,
 158         ',',                    //SDLK_COMMA            = 44,
 159         '-',                    //SDLK_MINUS            = 45,
 160         '.',                    //SDLK_PERIOD           = 46,
 161         '/',                    //SDLK_SLASH            = 47,
 162         '0',                    //SDLK_0                        = 48,
 163         '1',                    //SDLK_1                        = 49,
 164         '2',                    //SDLK_2                        = 50,
 165         '3',                    //SDLK_3                        = 51,
 166         '4',                    //SDLK_4                        = 52,
 167         '5',                    //SDLK_5                        = 53,
 168         '6',                    //SDLK_6                        = 54,
 169         '7',                    //SDLK_7                        = 55,
 170         '8',                    //SDLK_8                        = 56,
 171         '9',                    //SDLK_9                        = 57,
 172         ':',                    //SDLK_COLON            = 58,
 173         ';',                    //SDLK_SEMICOLON        = 59,
 174         '<',                    //SDLK_LESS                     = 60,
 175         '=',                    //SDLK_EQUALS           = 61,
 176         '>',                    //SDLK_GREATER          = 62,
 177         '?',                    //SDLK_QUESTION         = 63,
 178         '@',                    //SDLK_AT                       = 64,
 179         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,
 180         '[',            //SDLK_LEFTBRACKET      = 91,
 181         '\\',           //SDLK_BACKSLASH        = 92,
 182         ']',            //SDLK_RIGHTBRACKET     = 93,
 183         '^',            //SDLK_CARET            = 94,
 184         '_',            //SDLK_UNDERSCORE       = 95,
 185         '`',            //SDLK_BACKQUOTE        = 96,
 186         'a',            //SDLK_a                        = 97,
 187         'b',            //SDLK_b                        = 98,
 188         'c',            //SDLK_c                        = 99,
 189         'd',            //SDLK_d                        = 100,
 190         'e',            //SDLK_e                        = 101,
 191         'f',            //SDLK_f                        = 102,
 192         'g',            //SDLK_g                        = 103,
 193         'h',            //SDLK_h                        = 104,
 194         'i',            //SDLK_i                        = 105,
 195         'j',            //SDLK_j                        = 106,
 196         'k',            //SDLK_k                        = 107,
 197         'l',            //SDLK_l                        = 108,
 198         'm',            //SDLK_m                        = 109,
 199         'n',            //SDLK_n                        = 110,
 200         'o',            //SDLK_o                        = 111,
 201         'p',            //SDLK_p                        = 112,
 202         'q',            //SDLK_q                        = 113,
 203         'r',            //SDLK_r                        = 114,
 204         's',            //SDLK_s                        = 115,
 205         't',            //SDLK_t                        = 116,
 206         'u',            //SDLK_u                        = 117,
 207         'v',            //SDLK_v                        = 118,
 208         'w',            //SDLK_w                        = 119,
 209         'x',            //SDLK_x                        = 120,
 210         'y',            //SDLK_y                        = 121,
 211         'z',            //SDLK_z                        = 122,
 212         0,0,0,0,
 213         K_DEL,          //SDLK_DELETE           = 127,
 214         hundredoh /*227*/, tenoh, tenoh, 0,0,0,0,0,0,0,0,
 215         K_KP_0,         //SDLK_KP0              = 256,
 216         K_KP_1,         //SDLK_KP1              = 257,
 217         K_KP_2,         //SDLK_KP2              = 258,
 218         K_KP_3,         //SDLK_KP3              = 259,
 219         K_KP_4,         //SDLK_KP4              = 260,
 220         K_KP_5,         //SDLK_KP5              = 261,
 221         K_KP_6,         //SDLK_KP6              = 262,
 222         K_KP_7,         //SDLK_KP7              = 263,
 223         K_KP_8,         //SDLK_KP8              = 264,
 224         K_KP_9,         //SDLK_KP9              = 265,
 225         K_KP_PERIOD,//SDLK_KP_PERIOD    = 266,
 226         K_KP_DIVIDE,//SDLK_KP_DIVIDE    = 267,
 227         K_KP_MULTIPLY,//SDLK_KP_MULTIPLY= 268,
 228         K_KP_MINUS,     //SDLK_KP_MINUS         = 269,
 229         K_KP_PLUS,      //SDLK_KP_PLUS          = 270,
 230         K_KP_ENTER,     //SDLK_KP_ENTER         = 271,
 231         K_KP_EQUALS,//SDLK_KP_EQUALS    = 272,
 232         K_UPARROW,      //SDLK_UP               = 273,
 233         K_DOWNARROW,//SDLK_DOWN         = 274,
 234         K_RIGHTARROW,//SDLK_RIGHT       = 275,
 235         K_LEFTARROW,//SDLK_LEFT         = 276,
 236         K_INS,          //SDLK_INSERT   = 277,
 237         K_HOME,         //SDLK_HOME             = 278,
 238         K_END,          //SDLK_END              = 279,
 239         K_PGUP,         //SDLK_PAGEUP   = 280,
 240         K_PGDN,         //SDLK_PAGEDOWN = 281,
 241         K_F1,           //SDLK_F1               = 282,
 242         K_F2,           //SDLK_F2               = 283,
 243         K_F3,           //SDLK_F3               = 284,
 244         K_F4,           //SDLK_F4               = 285,
 245         K_F5,           //SDLK_F5               = 286,
 246         K_F6,           //SDLK_F6               = 287,
 247         K_F7,           //SDLK_F7               = 288,
 248         K_F8,           //SDLK_F8               = 289,
 249         K_F9,           //SDLK_F9               = 290,
 250         K_F10,          //SDLK_F10              = 291,
 251         K_F11,          //SDLK_F11              = 292,
 252         K_F12,          //SDLK_F12              = 293,
 253         0,                      //SDLK_F13              = 294,
 254         0,                      //SDLK_F14              = 295,
 255         0,                      //SDLK_F15              = 296,
 256         0,0,0,
 257         K_NUMLOCK,      //SDLK_NUMLOCK  = 300,
 258         K_CAPSLOCK,     //SDLK_CAPSLOCK = 301,
 259         K_SCROLLOCK,//SDLK_SCROLLOCK= 302,
 260         K_SHIFT,        //SDLK_RSHIFT   = 303,
 261         K_SHIFT,        //SDLK_LSHIFT   = 304,
 262         K_CTRL,         //SDLK_RCTRL    = 305,
 263         K_CTRL,         //SDLK_LCTRL    = 306,
 264         K_ALT,          //SDLK_RALT             = 307,
 265         K_ALT,          //SDLK_LALT             = 308,
 266         0,                      //SDLK_RMETA    = 309,
 267         0,                      //SDLK_LMETA    = 310,
 268         0,                      //SDLK_LSUPER   = 311,          /* Left "Windows" key */
 269         0,                      //SDLK_RSUPER   = 312,          /* Right "Windows" key */
 270         K_ALT,                  //SDLK_MODE             = 313,          /* "Alt Gr" key */
 271         0,                      //SDLK_COMPOSE  = 314,          /* Multi-key compose key */
 272         0,                      //SDLK_HELP             = 315,
 273         0,                      //SDLK_PRINT    = 316,
 274         0,                      //SDLK_SYSREQ   = 317,
 275         K_PAUSE,        //SDLK_BREAK    = 318,
 276         0,                      //SDLK_MENU             = 319,
 277         0,                      //SDLK_POWER    = 320,          /* Power Macintosh power key */
 278         'e',            //SDLK_EURO             = 321,          /* Some european keyboards */
 279         0                       //SDLK_UNDO             = 322,          /* Atari keyboard has Undo */
 280 };
 281 #undef tenoh
 282 #undef fiftyoh
 283 #undef hundredoh
 284
 285 static int MapKey( unsigned int sdlkey )
 286 {
 287         if( sdlkey > sizeof(tbl_sdltoquake)/ sizeof(int) )
 288                 return 0;
 289     return tbl_sdltoquake[ sdlkey ];
 290 }
 291
 292 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 293 {
 294 #ifndef __IPHONEOS__
 295 #ifdef MACOSX
 296         if(relative)
 297                 if(vid_usingmouse && (vid_usingnoaccel != !!apple_mouse_noaccel.integer))
 298                         VID_SetMouse(false, false, false); // ungrab first!
 299 #endif
 300 #endif
 301         if (vid_usingmouse != relative)
 302         {
 303                 vid_usingmouse = relative;
 304                 cl_ignoremousemoves = 2;
 305                 SDL_WM_GrabInput( relative ? SDL_GRAB_ON : SDL_GRAB_OFF );
 306 #ifndef __IPHONEOS__
 307 #ifdef MACOSX
 308                 if(relative)
 309                 {
 310                         // Save the status of mouse acceleration
 311                         originalMouseSpeed = -1.0; // in case of error
 312                         if(apple_mouse_noaccel.integer)
 313                         {
 314                                 io_connect_t mouseDev = IN_GetIOHandle();
 315                                 if(mouseDev != 0)
 316                                 {
 317                                         if(IOHIDGetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), &originalMouseSpeed) == kIOReturnSuccess)
 318                                         {
 319                                                 Con_DPrintf("previous mouse acceleration: %f\n", originalMouseSpeed);
 320                                                 if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), -1.0) != kIOReturnSuccess)
 321                                                 {
 322                                                         Con_Print("Could not disable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 323                                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 324                                                 }
 325                                         }
 326                                         else
 327                                         {
 328                                                 Con_Print("Could not disable mouse acceleration (failed at IOHIDGetAccelerationWithKey).\n");
 329                                                 Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 330                                         }
 331                                         IOServiceClose(mouseDev);
 332                                 }
 333                                 else
 334                                 {
 335                                         Con_Print("Could not disable mouse acceleration (failed at IO_GetIOHandle).\n");
 336                                         Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
 337                                 }
 338                         }
 339
 340                         vid_usingnoaccel = !!apple_mouse_noaccel.integer;
 341                 }
 342                 else
 343                 {
 344                         if(originalMouseSpeed != -1.0)
 345                         {
 346                                 io_connect_t mouseDev = IN_GetIOHandle();
 347                                 if(mouseDev != 0)
 348                                 {
 349                                         Con_DPrintf("restoring mouse acceleration to: %f\n", originalMouseSpeed);
 350                                         if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), originalMouseSpeed) != kIOReturnSuccess)
 351                                                 Con_Print("Could not re-enable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
 352                                         IOServiceClose(mouseDev);
 353                                 }
 354                                 else
 355                                         Con_Print("Could not re-enable mouse acceleration (failed at IO_GetIOHandle).\n");
 356                         }
 357                 }
 358 #endif
 359 #endif
 360         }
 361         if (vid_usinghidecursor != hidecursor)
 362         {
 363                 vid_usinghidecursor = hidecursor;
 364                 SDL_ShowCursor( hidecursor ? SDL_DISABLE : SDL_ENABLE);
 365         }
 366 }
 367
 368 static double IN_JoystickGetAxis(SDL_Joystick *joy, int axis, double sensitivity, double deadzone)
 369 {
 370         double value;
 371         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 372                 return 0; // no such axis on this joystick
 373         value = SDL_JoystickGetAxis(joy, axis) * (1.0 / 32767.0);
 374         value = bound(-1, value, 1);
 375         if (fabs(value) < deadzone)
 376                 return 0; // within deadzone around center
 377         return value * sensitivity;
 378 }
 379
 380 /////////////////////
 381 // Joystick axis keyevents
 382 // a sort of hack emulating Arrow keys for joystick axises
 383 // as some drives dont send such keyevents for them
 384 // additionally we should block drivers that do send arrow keyevents to prevent double events
 385 ////
 386
 387 static void IN_JoystickKeyeventForAxis(SDL_Joystick *joy, int axis, int key_pos, int key_neg)
 388 {
 389         double joytime;
 390
 391         if (axis < 0 || axis >= SDL_JoystickNumAxes(joy))
 392                 return; // no such axis on this joystick
 393
 394         joytime = Sys_DoubleTime();
 395         // no key event, continuous keydown event
 396         if (joy_axescache[axis].move == joy_axescache[axis].oldmove)
 397         {
 398                 if (joy_axescache[axis].move != 0 && joytime > joy_axescache[axis].keytime)
 399                 {
 400                         //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].move > 0) ? key_pos : key_neg), 1, cl.time);
 401                         Key_Event((joy_axescache[axis].move > 0) ? key_pos : key_neg, 0, 1);
 402                         joy_axescache[axis].keytime = joytime + 0.5 / 20;
 403                 }
 404                 return;
 405         }
 406         // generate key up event
 407         if (joy_axescache[axis].oldmove)
 408         {
 409                 //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].oldmove > 0) ? key_pos : key_neg), 1, cl.time);
 410                 Key_Event((joy_axescache[axis].oldmove > 0) ? key_pos : key_neg, 0, 0);
 411         }
 412         // generate key down event
 413         if (joy_axescache[axis].move)
 414         {
 415                 //Con_Printf("joy %s %i %f\n", Key_KeynumToString((joy_axescache[axis].move > 0) ? key_pos : key_neg), 1, cl.time);
 416                 Key_Event((joy_axescache[axis].move > 0) ? key_pos : key_neg, 0, 1);
 417                 joy_axescache[axis].keytime = joytime + 0.5;
 418         }
 419 }
 420
 421 static qboolean IN_JoystickBlockDoubledKeyEvents(int keycode)
 422 {
 423         if (!joy_axiskeyevents.integer)
 424                 return false;
 425
 426         // block keyevent if it's going to be provided by joystick keyevent system
 427         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 428         {
 429                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 430
 431                 if (keycode == K_UPARROW || keycode == K_DOWNARROW)
 432                         if (IN_JoystickGetAxis(joy, joy_axisforward.integer, 1, 0.01) || joy_axescache[joy_axisforward.integer].move || joy_axescache[joy_axisforward.integer].oldmove)
 433                                 return true;
 434                 if (keycode == K_RIGHTARROW || keycode == K_LEFTARROW)
 435                         if (IN_JoystickGetAxis(joy, joy_axisside.integer, 1, 0.01) || joy_axescache[joy_axisside.integer].move || joy_axescache[joy_axisside.integer].oldmove)
 436                                 return true;
 437         }
 438
 439         return false;
 440 }
 441
 442 /////////////////////
 443 // Movement handling
 444 ////
 445
 446 void IN_Move( void )
 447 {
 448         int j;
 449         static int old_x = 0, old_y = 0;
 450         static int stuck = 0;
 451         int x, y, numaxes, numballs;
 452
 453         if (vid_usingmouse)
 454         {
 455                 if(vid_stick_mouse.integer)
 456                 {
 457                         // have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
 458                         // window grabbing. --blub
 459
 460                         // we need 2 frames to initialize the center position
 461                         if(!stuck)
 462                         {
 463                                 SDL_WarpMouse(win_half_width, win_half_height);
 464                                 SDL_GetMouseState(&x, &y);
 465                                 SDL_GetRelativeMouseState(&x, &y);
 466                                 ++stuck;
 467                         } else {
 468                                 SDL_GetRelativeMouseState(&x, &y);
 469                                 in_mouse_x = x + old_x;
 470                                 in_mouse_y = y + old_y;
 471                                 SDL_GetMouseState(&x, &y);
 472                                 old_x = x - win_half_width;
 473                                 old_y = y - win_half_height;
 474                                 SDL_WarpMouse(win_half_width, win_half_height);
 475                         }
 476                 } else {
 477                         SDL_GetRelativeMouseState( &x, &y );
 478                         in_mouse_x = x;
 479                         in_mouse_y = y;
 480                 }
 481         }
 482
 483         SDL_GetMouseState(&x, &y);
 484         in_windowmouse_x = x;
 485         in_windowmouse_y = y;
 486
 487         if (vid_numjoysticks && joy_enable.integer && joy_index.integer >= 0 && joy_index.integer < vid_numjoysticks)
 488         {
 489                 SDL_Joystick *joy = vid_joysticks[joy_index.integer];
 490
 491                 // balls convert to mousemove
 492                 numballs = SDL_JoystickNumBalls(joy);
 493                 for (j = 0;j < numballs;j++)
 494                 {
 495                         SDL_JoystickGetBall(joy, j, &x, &y);
 496                         in_mouse_x += x;
 497                         in_mouse_y += y;
 498                 }
 499
 500                 // axes
 501                 cl.cmd.forwardmove += IN_JoystickGetAxis(joy, joy_axisforward.integer, joy_sensitivityforward.value, joy_deadzoneforward.value) * cl_forwardspeed.value;
 502                 cl.cmd.sidemove    += IN_JoystickGetAxis(joy, joy_axisside.integer, joy_sensitivityside.value, joy_deadzoneside.value) * cl_sidespeed.value;
 503                 cl.cmd.upmove      += IN_JoystickGetAxis(joy, joy_axisup.integer, joy_sensitivityup.value, joy_deadzoneup.value) * cl_upspeed.value;
 504                 cl.viewangles[0]   += IN_JoystickGetAxis(joy, joy_axispitch.integer, joy_sensitivitypitch.value, joy_deadzonepitch.value) * cl.realframetime * cl_pitchspeed.value;
 505                 cl.viewangles[1]   += IN_JoystickGetAxis(joy, joy_axisyaw.integer, joy_sensitivityyaw.value, joy_deadzoneyaw.value) * cl.realframetime * cl_yawspeed.value;
 506                 //cl.viewangles[2]   += IN_JoystickGetAxis(joy, joy_axisroll.integer, joy_sensitivityroll.value, joy_deadzoneroll.value) * cl.realframetime * cl_rollspeed.value;
 507
 508                 // cache state of axes to emulate button events for them
 509                 numaxes = min(MAX_JOYSTICK_AXES, SDL_JoystickNumAxes(joy));
 510                 for (j = 0; j < numaxes; j++)
 511                 {
 512                         joy_axescache[j].oldmove = joy_axescache[j].move;
 513                         joy_axescache[j].move = IN_JoystickGetAxis(joy, j, 1, 0.01);
 514                 }
 515
 516                 // run keyevents
 517                 if (joy_axiskeyevents.integer)
 518                 {
 519                         IN_JoystickKeyeventForAxis(joy, joy_axisforward.integer, K_DOWNARROW, K_UPARROW);
 520                         IN_JoystickKeyeventForAxis(joy, joy_axisside.integer, K_RIGHTARROW, K_LEFTARROW);
 521                 }
 522         }
 523 }
 524
 525 /////////////////////
 526 // Message Handling
 527 ////
 528
 529 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
 530 static int Sys_EventFilter( SDL_Event *event )
 531 {
 532         //TODO: Add a quit query in linux, too - though linux user are more likely to know what they do
 533         if (event->type == SDL_QUIT)
 534         {
 535 #ifdef WIN32
 536                 if (MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO)
 537                         return 0;
 538 #endif
 539         }
 540         return 1;
 541 }
 542 #endif
 543
 544 #ifdef SDL_R_RESTART
 545 static qboolean sdl_needs_restart;
 546 static void sdl_start(void)
 547 {
 548 }
 549 static void sdl_shutdown(void)
 550 {
 551         sdl_needs_restart = false;
 552 }
 553 static void sdl_newmap(void)
 554 {
 555 }
 556 #endif
 557
 558 static keynum_t buttonremap[18] =
 559 {
 560         K_MOUSE1,
 561         K_MOUSE3,
 562         K_MOUSE2,
 563         K_MWHEELUP,
 564         K_MWHEELDOWN,
 565         K_MOUSE4,
 566         K_MOUSE5,
 567         K_MOUSE6,
 568         K_MOUSE7,
 569         K_MOUSE8,
 570         K_MOUSE9,
 571         K_MOUSE10,
 572         K_MOUSE11,
 573         K_MOUSE12,
 574         K_MOUSE13,
 575         K_MOUSE14,
 576         K_MOUSE15,
 577         K_MOUSE16,
 578 };
 579
 580 void Sys_SendKeyEvents( void )
 581 {
 582         static qboolean sound_active = true;
 583         int keycode;
 584         SDL_Event event;
 585
 586         while( SDL_PollEvent( &event ) )
 587                 switch( event.type ) {
 588                         case SDL_QUIT:
 589 #if !(SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2)
 590 #ifdef WIN32
 591                                 if (MessageBox( NULL, "Are you sure you want to quit?", "Confirm Exit", MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION ) == IDNO)
 592                                         return 0;
 593 #endif
 594 #endif
 595                                 Sys_Quit(0);
 596                                 break;
 597                         case SDL_KEYDOWN:
 598                         case SDL_KEYUP:
 599                                 keycode = MapKey(event.key.keysym.sym);
 600                                 if (!IN_JoystickBlockDoubledKeyEvents(keycode))
 601                                         Key_Event(keycode, event.key.keysym.unicode, (event.key.state == SDL_PRESSED));
 602                                 break;
 603                         case SDL_ACTIVEEVENT:
 604                                 if( event.active.state & SDL_APPACTIVE )
 605                                 {
 606                                         if( event.active.gain )
 607                                                 vid_hidden = false;
 608                                         else
 609                                                 vid_hidden = true;
 610                                 }
 611                                 break;
 612                         case SDL_MOUSEBUTTONDOWN:
 613                         case SDL_MOUSEBUTTONUP:
 614                                 if (event.button.button <= 18)
 615                                         Key_Event( buttonremap[event.button.button - 1], 0, event.button.state == SDL_PRESSED );
 616                                 break;
 617                         case SDL_JOYBUTTONDOWN:
 618                                 if (!joy_enable.integer)
 619                                         break; // ignore down events if joystick has been disabled
 620                         case SDL_JOYBUTTONUP:
 621                                 if (event.jbutton.button < 48)
 622                                         Key_Event( event.jbutton.button + (event.jbutton.button < 16 ? K_JOY1 : K_AUX1 - 16), 0, (event.jbutton.state == SDL_PRESSED) );
 623                                 break;
 624                         case SDL_VIDEORESIZE:
 625                                 if(vid_resizable.integer < 2)
 626                                 {
 627                                         vid.width = event.resize.w;
 628                                         vid.height = event.resize.h;
 629                                         SDL_SetVideoMode(vid.width, vid.height, video_bpp, video_flags);
 630                                         if (vid_softsurface)
 631                                         {
 632                                                 SDL_FreeSurface(vid_softsurface);
 633                                                 vid_softsurface = SDL_CreateRGBSurface(SDL_SWSURFACE, vid.width, vid.height, 32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000);
 634                                                 vid.softpixels = (unsigned int *)vid_softsurface->pixels;
 635                                                 SDL_SetAlpha(vid_softsurface, 0, 255);
 636                                                 if (vid.softdepthpixels)
 637                                                         free(vid.softdepthpixels);
 638                                                 vid.softdepthpixels = (unsigned int*)calloc(1, vid.width * vid.height * 4);
 639                                         }
 640 #ifdef SDL_R_RESTART
 641                                         // better not call R_Modules_Restart from here directly, as this may wreak havoc...
 642                                         // so, let's better queue it for next frame
 643                                         if(!sdl_needs_restart)
 644                                         {
 645                                                 Cbuf_AddText("\nr_restart\n");
 646                                                 sdl_needs_restart = true;
 647                                         }
 648 #endif
 649                                 }
 650                                 break;
 651                 }
 652
 653         // enable/disable sound on focus gain/loss
 654         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
 655         {
 656                 if (!sound_active)
 657                 {
 658                         S_UnblockSound ();
 659                         sound_active = true;
 660                 }
 661         }
 662         else
 663         {
 664                 if (sound_active)
 665                 {
 666                         S_BlockSound ();
 667                         sound_active = false;
 668                 }
 669         }
 670 }
 671
 672 /////////////////
 673 // Video system
 674 ////
 675
 676 void *GL_GetProcAddress(const char *name)
 677 {
 678         void *p = NULL;
 679         p = SDL_GL_GetProcAddress(name);
 680         return p;
 681 }
 682
 683 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
 684 static int Sys_EventFilter( SDL_Event *event );
 685 #endif
 686 static qboolean vid_sdl_initjoysticksystem = false;
 687
 688 void VID_Init (void)
 689 {
 690 #ifndef __IPHONEOS__
 691 #ifdef MACOSX
 692         Cvar_RegisterVariable(&apple_mouse_noaccel);
 693 #endif
 694 #endif
 695         Cvar_RegisterVariable(&vid_soft);
 696         Cvar_RegisterVariable(&vid_soft_threads);
 697         Cvar_RegisterVariable(&joy_detected);
 698         Cvar_RegisterVariable(&joy_enable);
 699         Cvar_RegisterVariable(&joy_index);
 700         Cvar_RegisterVariable(&joy_axisforward);
 701         Cvar_RegisterVariable(&joy_axisside);
 702         Cvar_RegisterVariable(&joy_axisup);
 703         Cvar_RegisterVariable(&joy_axispitch);
 704         Cvar_RegisterVariable(&joy_axisyaw);
 705         //Cvar_RegisterVariable(&joy_axisroll);
 706         Cvar_RegisterVariable(&joy_deadzoneforward);
 707         Cvar_RegisterVariable(&joy_deadzoneside);
 708         Cvar_RegisterVariable(&joy_deadzoneup);
 709         Cvar_RegisterVariable(&joy_deadzonepitch);
 710         Cvar_RegisterVariable(&joy_deadzoneyaw);
 711         //Cvar_RegisterVariable(&joy_deadzoneroll);
 712         Cvar_RegisterVariable(&joy_sensitivityforward);
 713         Cvar_RegisterVariable(&joy_sensitivityside);
 714         Cvar_RegisterVariable(&joy_sensitivityup);
 715         Cvar_RegisterVariable(&joy_sensitivitypitch);
 716         Cvar_RegisterVariable(&joy_sensitivityyaw);
 717         //Cvar_RegisterVariable(&joy_sensitivityroll);
 718         Cvar_RegisterVariable(&joy_axiskeyevents);
 719
 720 #ifdef SDL_R_RESTART
 721         R_RegisterModule("SDL", sdl_start, sdl_shutdown, sdl_newmap, NULL, NULL);
 722 #endif
 723
 724         if (SDL_Init(SDL_INIT_VIDEO) < 0)
 725                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
 726         vid_sdl_initjoysticksystem = SDL_InitSubSystem(SDL_INIT_JOYSTICK) >= 0;
 727         if (vid_sdl_initjoysticksystem)
 728                 Con_Printf("Failed to init SDL joystick subsystem: %s\n", SDL_GetError());
 729         vid_isfullscreen = false;
 730 }
 731
 732 // set the icon (we dont use SDL here since it would be too much a PITA)
 733 #ifdef WIN32
 734 #include "resource.h"
 735 #include <SDL_syswm.h>
 736 static void VID_SetCaption(void)
 737 {
 738     SDL_SysWMinfo       info;
 739         HICON                   icon;
 740
 741         // set the caption
 742         SDL_WM_SetCaption( gamename, NULL );
 743
 744         // get the HWND handle
 745     SDL_VERSION( &info.version );
 746         if( !SDL_GetWMInfo( &info ) )
 747                 return;
 748
 749         icon = LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_ICON1 ) );
 750 #ifndef _W64 //If Windows 64bit data types don't exist
 751 #ifndef SetClassLongPtr
 752 #define SetClassLongPtr SetClassLong
 753 #endif
 754 #ifndef GCLP_HICON
 755 #define GCLP_HICON GCL_HICON
 756 #endif
 757 #ifndef LONG_PTR
 758 #define LONG_PTR LONG
 759 #endif
 760 #endif
 761         SetClassLongPtr( info.window, GCLP_HICON, (LONG_PTR)icon );
 762 }
 763 static void VID_SetIcon_Pre(void)
 764 {
 765 }
 766 static void VID_SetIcon_Post(void)
 767 {
 768 }
 769 #else
 770 // Adding the OS independent XPM version --blub
 771 #include "darkplaces.xpm"
 772 #include "nexuiz.xpm"
 773 static SDL_Surface *icon = NULL;
 774 static void VID_SetIcon_Pre(void)
 775 {
 776         /*
 777          * Somewhat restricted XPM reader. Only supports XPMs saved by GIMP 2.4 at
 778          * default settings with less than 91 colors and transparency.
 779          */
 780
 781         int width, height, colors, isize, i, j;
 782         int thenone = -1;
 783         static SDL_Color palette[256];
 784         unsigned short palenc[256]; // store color id by char
 785         char *xpm;
 786         char **idata, *data;
 787         const SDL_version *version;
 788
 789         version = SDL_Linked_Version();
 790         // only use non-XPM icon support in SDL v1.3 and higher
 791         // SDL v1.2 does not support "smooth" transparency, and thus is better
 792         // off the xpm way
 793         if(version->major >= 2 || (version->major == 1 && version->minor >= 3))
 794         {
 795                 data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 796                 if(data)
 797                 {
 798                         unsigned int red = 0x00FF0000;
 799                         unsigned int green = 0x0000FF00;
 800                         unsigned int blue = 0x000000FF;
 801                         unsigned int alpha = 0xFF000000;
 802                         width = image_width;
 803                         height = image_height;
 804
 805                         // reallocate with malloc, as this is in tempmempool (do not want)
 806                         xpm = data;
 807                         data = malloc(width * height * 4);
 808                         memcpy(data, xpm, width * height * 4);
 809                         Mem_Free(xpm);
 810                         xpm = NULL;
 811
 812                         icon = SDL_CreateRGBSurface(SDL_SRCALPHA, width, height, 32, LittleLong(red), LittleLong(green), LittleLong(blue), LittleLong(alpha));
 813
 814                         if(icon == NULL) {
 815                                 Con_Printf(     "Failed to create surface for the window Icon!\n"
 816                                                 "%s\n", SDL_GetError());
 817                                 free(data);
 818                                 return;
 819                         }
 820
 821                         icon->pixels = data;
 822                 }
 823         }
 824
 825         // we only get here if non-XPM icon was missing, or SDL version is not
 826         // sufficient for transparent non-XPM icons
 827         if(!icon)
 828         {
 829                 xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
 830                 idata = NULL;
 831                 if(xpm)
 832                         idata = XPM_DecodeString(xpm);
 833                 if(!idata)
 834                         idata = ENGINE_ICON;
 835                 if(xpm)
 836                         Mem_Free(xpm);
 837
 838                 data = idata[0];
 839
 840                 if(sscanf(data, "%i %i %i %i", &width, &height, &colors, &isize) != 4)
 841                 {
 842                         // NOTE: Only 1-char colornames are supported
 843                         Con_Printf("Sorry, but this does not even look similar to an XPM.\n");
 844                         return;
 845                 }
 846
 847                 if(isize != 1)
 848                 {
 849                         // NOTE: Only 1-char colornames are supported
 850                         Con_Printf("This XPM's palette is either huge or idiotically unoptimized. It's key size is %i\n", isize);
 851                         return;
 852                 }
 853
 854                 for(i = 0; i < colors; ++i)
 855                 {
 856                         unsigned int r, g, b;
 857                         char idx;
 858
 859                         if(sscanf(idata[i+1], "%c c #%02x%02x%02x", &idx, &r, &g, &b) != 4)
 860                         {
 861                                 char foo[2];
 862                                 if(sscanf(idata[i+1], "%c c Non%1[e]", &idx, foo) != 2) // I take the DailyWTF credit for this. --div0
 863                                 {
 864                                         Con_Printf("This XPM's palette looks odd. Can't continue.\n");
 865                                         return;
 866                                 }
 867                                 else
 868                                 {
 869                                         palette[i].r = 255; // color key
 870                                         palette[i].g = 0;
 871                                         palette[i].b = 255;
 872                                         thenone = i; // weeeee
 873                                 }
 874                         }
 875                         else
 876                         {
 877                                 palette[i].r = r - (r == 255 && g == 0 && b == 255); // change 255/0/255 pink to 254/0/255 for color key
 878                                 palette[i].g = g;
 879                                 palette[i].b = b;
 880                         }
 881
 882                         palenc[(unsigned char) idx] = i;
 883                 }
 884
 885                 // allocate the image data
 886                 data = (char*) malloc(width*height);
 887
 888                 for(j = 0; j < height; ++j)
 889                 {
 890                         for(i = 0; i < width; ++i)
 891                         {
 892                                 // casting to the safest possible datatypes ^^
 893                                 data[j * width + i] = palenc[((unsigned char*)idata[colors+j+1])[i]];
 894                         }
 895                 }
 896
 897                 if(icon != NULL)
 898                 {
 899                         // SDL_FreeSurface should free the data too
 900                         // but for completeness' sake...
 901                         if(icon->flags & SDL_PREALLOC)
 902                         {
 903                                 free(icon->pixels);
 904                                 icon->pixels = NULL; // safety
 905                         }
 906                         SDL_FreeSurface(icon);
 907                 }
 908
 909                 icon = SDL_CreateRGBSurface(SDL_SRCCOLORKEY, width, height, 8, 0,0,0,0);// rmask, gmask, bmask, amask); no mask needed
 910                 // 8 bit surfaces get an empty palette allocated according to the docs
 911                 // so it's a palette image for sure :) no endian check necessary for the mask
 912
 913                 if(icon == NULL) {
 914                         Con_Printf(     "Failed to create surface for the window Icon!\n"
 915                                         "%s\n", SDL_GetError());
 916                         free(data);
 917                         return;
 918                 }
 919
 920                 icon->pixels = data;
 921                 SDL_SetPalette(icon, SDL_PHYSPAL|SDL_LOGPAL, palette, 0, colors);
 922                 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, thenone);
 923         }
 924
 925         SDL_WM_SetIcon(icon, NULL);
 926 }
 927 static void VID_SetIcon_Post(void)
 928 {
 929 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
 930 // LordHavoc: info.info.x11.lock_func and accompanying code do not seem to compile with SDL 1.3
 931 #if SDL_VIDEO_DRIVER_X11 && !SDL_VIDEO_DRIVER_QUARTZ
 932         int j;
 933         char *data;
 934         const SDL_version *version;
 935
 936         version = SDL_Linked_Version();
 937         // only use non-XPM icon support in SDL v1.3 and higher
 938         // SDL v1.2 does not support "smooth" transparency, and thus is better
 939         // off the xpm way
 940         if(!(version->major >= 2 || (version->major == 1 && version->minor >= 3)))
 941         {
 942                 // in this case, we did not set the good icon yet
 943                 SDL_SysWMinfo info;
 944                 SDL_VERSION(&info.version);
 945                 if(SDL_GetWMInfo(&info) == 1 && info.subsystem == SDL_SYSWM_X11)
 946                 {
 947                         data = (char *) loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
 948                         if(data)
 949                         {
 950                                 // use _NET_WM_ICON too
 951                                 static long netwm_icon[MAX_NETWM_ICON];
 952                                 int pos = 0;
 953                                 int i = 1;
 954
 955                                 while(data)
 956                                 {
 957                                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
 958                                         {
 959                                                 netwm_icon[pos++] = image_width;
 960                                                 netwm_icon[pos++] = image_height;
 961                                                 for(i = 0; i < image_height; ++i)
 962                                                         for(j = 0; j < image_width; ++j)
 963                                                                 netwm_icon[pos++] = BuffLittleLong((unsigned char *) &data[(i*image_width+j)*4]);
 964                                         }
 965                                         else
 966                                         {
 967                                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
 968                                         }
 969                                         ++i;
 970                                         Mem_Free(data);
 971                                         data = (char *) loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
 972                                 }
 973
 974                                 info.info.x11.lock_func();
 975                                 {
 976                                         Atom net_wm_icon = XInternAtom(info.info.x11.display, "_NET_WM_ICON", false);
 977                                         XChangeProperty(info.info.x11.display, info.info.x11.wmwindow, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
 978                                 }
 979                                 info.info.x11.unlock_func();
 980                         }
 981                 }
 982         }
 983 #endif
 984 #endif
 985 }
 986
 987
 988 static void VID_SetCaption(void)
 989 {
 990         SDL_WM_SetCaption( gamename, NULL );
 991 }
 992 #endif
 993
 994 static void VID_OutputVersion(void)
 995 {
 996         const SDL_version *version;
 997         version = SDL_Linked_Version();
 998         Con_Printf(     "Linked against SDL version %d.%d.%d\n"
 999                                         "Using SDL library version %d.%d.%d\n",
1000                                         SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
1001                                         version->major, version->minor, version->patch );
1002 }
1003
1004 qboolean VID_InitModeGL(viddef_mode_t *mode)
1005 {
1006         int i;
1007 // FIXME SDL_SetVideoMode
1008         static int notfirstvideomode = false;
1009         int flags = SDL_OPENGL;
1010         const char *drivername;
1011
1012         win_half_width = mode->width>>1;
1013         win_half_height = mode->height>>1;
1014
1015         if(vid_resizable.integer)
1016                 flags |= SDL_RESIZABLE;
1017
1018         VID_OutputVersion();
1019
1020         /*
1021         SDL Hack
1022                 We cant switch from one OpenGL video mode to another.
1023                 Thus we first switch to some stupid 2D mode and then back to OpenGL.
1024         */
1025         if (notfirstvideomode)
1026                 SDL_SetVideoMode( 0, 0, 0, 0 );
1027         notfirstvideomode = true;
1028
1029         // SDL usually knows best
1030         drivername = NULL;
1031
1032 // 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
1033         i = COM_CheckParm("-gl_driver");
1034         if (i && i < com_argc - 1)
1035                 drivername = com_argv[i + 1];
1036         if (SDL_GL_LoadLibrary(drivername) < 0)
1037         {
1038                 Con_Printf("Unable to load GL driver \"%s\": %s\n", drivername, SDL_GetError());
1039                 return false;
1040         }
1041
1042         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1043         {
1044                 VID_Shutdown();
1045                 Con_Print("Required OpenGL function glGetString not found\n");
1046                 return false;
1047         }
1048
1049         // Knghtbrd: should do platform-specific extension string function here
1050
1051         vid_isfullscreen = false;
1052         if (mode->fullscreen) {
1053                 flags |= SDL_FULLSCREEN;
1054                 vid_isfullscreen = true;
1055         }
1056         //flags |= SDL_HWSURFACE;
1057
1058         SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
1059         if (mode->bitsperpixel >= 32)
1060         {
1061                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 8);
1062                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 8);
1063                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 8);
1064                 SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 8);
1065                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
1066                 SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 8);
1067         }
1068         else
1069         {
1070                 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
1071                 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
1072                 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
1073                 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
1074         }
1075         if (mode->stereobuffer)
1076                 SDL_GL_SetAttribute (SDL_GL_STEREO, 1);
1077         if (mode->samples > 1)
1078         {
1079                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
1080                 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, mode->samples);
1081         }
1082 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
1083         if (vid_vsync.integer)
1084                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 1);
1085         else
1086                 SDL_GL_SetAttribute (SDL_GL_SWAP_CONTROL, 0);
1087 #else
1088         // TODO: SDL_GL_CONTEXT_MAJOR_VERSION, SDL_GL_CONTEXT_MINOR_VERSION
1089 #endif
1090
1091         video_bpp = mode->bitsperpixel;
1092         video_flags = flags;
1093         VID_SetIcon_Pre();
1094         screen = SDL_SetVideoMode(mode->width, mode->height, mode->bitsperpixel, flags);
1095         VID_SetIcon_Post();
1096
1097         if (screen == NULL)
1098         {
1099                 Con_Printf("Failed to set video mode to %ix%i: %s\n", mode->width, mode->height, SDL_GetError());
1100                 VID_Shutdown();
1101                 return false;
1102         }
1103
1104         vid_softsurface = NULL;
1105         vid.softpixels = NULL;
1106
1107         // set window title
1108         VID_SetCaption();
1109 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
1110         // set up an event filter to ask confirmation on close button in WIN32
1111         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
1112 #endif
1113         // init keyboard
1114         SDL_EnableUNICODE( SDL_ENABLE );
1115         // enable key repeat since everyone expects it
1116         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
1117
1118 #if !(SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2)
1119         SDL_GL_SetSwapInterval(vid_vsync.integer != 0);
1120         vid_usingvsync = (vid_vsync.integer != 0);
1121 #endif
1122
1123         gl_platform = "SDL";
1124         gl_platformextensions = "";
1125
1126         GL_Init();
1127
1128         vid_numjoysticks = SDL_NumJoysticks();
1129         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
1130         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
1131         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
1132         memset(vid_joysticks, 0, sizeof(vid_joysticks));
1133         for (i = 0;i < vid_numjoysticks;i++)
1134         {
1135                 SDL_Joystick *joy;
1136                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
1137                 if (!joy)
1138                 {
1139                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
1140                         continue;
1141                 }
1142                 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));
1143         }
1144
1145         vid_hidden = false;
1146         vid_activewindow = false;
1147         vid_usingmouse = false;
1148         vid_usinghidecursor = false;
1149
1150         SDL_WM_GrabInput(SDL_GRAB_OFF);
1151         return true;
1152 }
1153
1154 extern cvar_t gl_info_extensions;
1155 extern cvar_t gl_info_vendor;
1156 extern cvar_t gl_info_renderer;
1157 extern cvar_t gl_info_version;
1158 extern cvar_t gl_info_platform;
1159 extern cvar_t gl_info_driver;
1160
1161 qboolean VID_InitModeSoft(viddef_mode_t *mode)
1162 {
1163 // FIXME SDL_SetVideoMode
1164         int i;
1165         int flags = SDL_HWSURFACE;
1166
1167         win_half_width = mode->width>>1;
1168         win_half_height = mode->height>>1;
1169
1170         if(vid_resizable.integer)
1171                 flags |= SDL_RESIZABLE;
1172
1173         VID_OutputVersion();
1174
1175         vid_isfullscreen = false;
1176         if (mode->fullscreen) {
1177                 flags |= SDL_FULLSCREEN;
1178                 vid_isfullscreen = true;
1179         }
1180
1181         video_bpp = mode->bitsperpixel;
1182         video_flags = flags;
1183         VID_SetIcon_Pre();
1184         screen = SDL_SetVideoMode(mode->width, mode->height, mode->bitsperpixel, flags);
1185         VID_SetIcon_Post();
1186
1187         if (screen == NULL)
1188         {
1189                 Con_Printf("Failed to set video mode to %ix%i: %s\n", mode->width, mode->height, SDL_GetError());
1190                 VID_Shutdown();
1191                 return false;
1192         }
1193
1194         // create a framebuffer using our specific color format, we let the SDL blit function convert it in VID_Finish
1195         vid_softsurface = SDL_CreateRGBSurface(SDL_SWSURFACE, mode->width, mode->height, 32, 0x00FF0000, 0x0000FF00, 0x00000000FF, 0xFF000000);
1196         if (vid_softsurface == NULL)
1197         {
1198                 Con_Printf("Failed to setup software rasterizer framebuffer %ix%ix32bpp: %s\n", mode->width, mode->height, SDL_GetError());
1199                 VID_Shutdown();
1200                 return false;
1201         }
1202         SDL_SetAlpha(vid_softsurface, 0, 255);
1203
1204         vid.softpixels = (unsigned int *)vid_softsurface->pixels;
1205         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1206         DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, (unsigned int *)vid_softsurface->pixels, (unsigned int *)vid.softdepthpixels);
1207
1208         // set window title
1209         VID_SetCaption();
1210         // set up an event filter to ask confirmation on close button in WIN32
1211 #if SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2
1212         SDL_SetEventFilter( (SDL_EventFilter) Sys_EventFilter );
1213 #endif
1214         // init keyboard
1215         SDL_EnableUNICODE( SDL_ENABLE );
1216         // enable key repeat since everyone expects it
1217         SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
1218
1219         gl_platform = "SDLSoft";
1220         gl_platformextensions = "";
1221
1222         gl_renderer = "DarkPlaces-Soft";
1223         gl_vendor = "Forest Hale";
1224         gl_version = "0.0";
1225         gl_extensions = "";
1226
1227         // clear the extension flags
1228         memset(&vid.support, 0, sizeof(vid.support));
1229         Cvar_SetQuick(&gl_info_extensions, "");
1230
1231         vid.forcevbo = false;
1232         vid.support.arb_depth_texture = true;
1233         vid.support.arb_draw_buffers = true;
1234         vid.support.arb_occlusion_query = true;
1235         vid.support.arb_shadow = true;
1236         //vid.support.arb_texture_compression = true;
1237         vid.support.arb_texture_cube_map = true;
1238         vid.support.arb_texture_non_power_of_two = false;
1239         vid.support.arb_vertex_buffer_object = true;
1240         vid.support.ext_blend_subtract = true;
1241         vid.support.ext_draw_range_elements = true;
1242         vid.support.ext_framebuffer_object = true;
1243         vid.support.ext_texture_3d = true;
1244         //vid.support.ext_texture_compression_s3tc = true;
1245         vid.support.ext_texture_filter_anisotropic = true;
1246         vid.support.ati_separate_stencil = true;
1247
1248         vid.maxtexturesize_2d = 16384;
1249         vid.maxtexturesize_3d = 512;
1250         vid.maxtexturesize_cubemap = 16384;
1251         vid.texunits = 4;
1252         vid.teximageunits = 32;
1253         vid.texarrayunits = 8;
1254         vid.max_anisotropy = 1;
1255         vid.maxdrawbuffers = 4;
1256
1257         vid.texunits = bound(4, vid.texunits, MAX_TEXTUREUNITS);
1258         vid.teximageunits = bound(16, vid.teximageunits, MAX_TEXTUREUNITS);
1259         vid.texarrayunits = bound(8, vid.texarrayunits, MAX_TEXTUREUNITS);
1260         Con_DPrintf("Using DarkPlaces Software Rasterizer rendering path\n");
1261         vid.renderpath = RENDERPATH_SOFT;
1262         vid.useinterleavedarrays = false;
1263
1264         Cvar_SetQuick(&gl_info_vendor, gl_vendor);
1265         Cvar_SetQuick(&gl_info_renderer, gl_renderer);
1266         Cvar_SetQuick(&gl_info_version, gl_version);
1267         Cvar_SetQuick(&gl_info_platform, gl_platform ? gl_platform : "");
1268         Cvar_SetQuick(&gl_info_driver, gl_driver);
1269
1270         // LordHavoc: report supported extensions
1271         Con_DPrintf("\nQuakeC extensions for server and client: %s\nQuakeC extensions for menu: %s\n", vm_sv_extensions, vm_m_extensions );
1272
1273         // clear to black (loading plaque will be seen over this)
1274         GL_Clear(GL_COLOR_BUFFER_BIT, NULL, 1.0f, 128);
1275
1276         vid_numjoysticks = SDL_NumJoysticks();
1277         vid_numjoysticks = bound(0, vid_numjoysticks, MAX_JOYSTICKS);
1278         Cvar_SetValueQuick(&joy_detected, vid_numjoysticks);
1279         Con_Printf("%d SDL joystick(s) found:\n", vid_numjoysticks);
1280         memset(vid_joysticks, 0, sizeof(vid_joysticks));
1281         for (i = 0;i < vid_numjoysticks;i++)
1282         {
1283                 SDL_Joystick *joy;
1284                 joy = vid_joysticks[i] = SDL_JoystickOpen(i);
1285                 if (!joy)
1286                 {
1287                         Con_Printf("joystick #%i: open failed: %s\n", i, SDL_GetError());
1288                         continue;
1289                 }
1290                 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));
1291         }
1292
1293         vid_hidden = false;
1294         vid_activewindow = false;
1295         vid_usingmouse = false;
1296         vid_usinghidecursor = false;
1297
1298         SDL_WM_GrabInput(SDL_GRAB_OFF);
1299         return true;
1300 }
1301
1302 qboolean VID_InitMode(viddef_mode_t *mode)
1303 {
1304         if (!SDL_WasInit(SDL_INIT_VIDEO) && SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
1305                 Sys_Error ("Failed to init SDL video subsystem: %s", SDL_GetError());
1306 #ifdef SSE2_PRESENT
1307         if (vid_soft.integer)
1308                 return VID_InitModeSoft(mode);
1309         else
1310 #endif
1311                 return VID_InitModeGL(mode);
1312 }
1313
1314 void VID_Shutdown (void)
1315 {
1316         VID_SetMouse(false, false, false);
1317         VID_RestoreSystemGamma();
1318
1319 #ifndef WIN32
1320         if (icon)
1321                 SDL_FreeSurface(icon);
1322         icon = NULL;
1323 #endif
1324
1325         if (vid_softsurface)
1326                 SDL_FreeSurface(vid_softsurface);
1327         vid_softsurface = NULL;
1328         vid.softpixels = NULL;
1329         if (vid.softdepthpixels)
1330                 free(vid.softdepthpixels);
1331         vid.softdepthpixels = NULL;
1332
1333         SDL_QuitSubSystem(SDL_INIT_VIDEO);
1334
1335         gl_driver[0] = 0;
1336         gl_extensions = "";
1337         gl_platform = "";
1338         gl_platformextensions = "";
1339 }
1340
1341 int VID_SetGamma (unsigned short *ramps, int rampsize)
1342 {
1343         return !SDL_SetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1344 }
1345
1346 int VID_GetGamma (unsigned short *ramps, int rampsize)
1347 {
1348         return !SDL_GetGammaRamp (ramps, ramps + rampsize, ramps + rampsize*2);
1349 }
1350
1351 void VID_Finish (void)
1352 {
1353         Uint8 appstate;
1354
1355         //react on appstate changes
1356         appstate = SDL_GetAppState();
1357
1358         vid_hidden = !(appstate & SDL_APPACTIVE);
1359
1360         if( vid_hidden || !( appstate & SDL_APPMOUSEFOCUS ) || !( appstate & SDL_APPINPUTFOCUS ) )
1361                 vid_activewindow = false;
1362         else
1363                 vid_activewindow = true;
1364
1365         VID_UpdateGamma(false, 256);
1366
1367         if (!vid_hidden)
1368         {
1369                 switch(vid.renderpath)
1370                 {
1371                 case RENDERPATH_GL11:
1372                 case RENDERPATH_GL13:
1373                 case RENDERPATH_GL20:
1374                 case RENDERPATH_CGGL:
1375                         CHECKGLERROR
1376                         if (r_speeds.integer == 2 || gl_finish.integer)
1377                         {
1378                                 qglFinish();CHECKGLERROR
1379                         }
1380 #if !(SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION == 2)
1381 {
1382         qboolean vid_usevsync;
1383         vid_usevsync = (vid_vsync.integer && !cls.timedemo);
1384         if (vid_usingvsync != vid_usevsync)
1385         {
1386                 if (SDL_GL_SetSwapInterval(vid_usevsync != 0) >= 0)
1387                         Con_DPrintf("Vsync %s\n", vid_usevsync ? "activated" : "deactivated");
1388                 else
1389                         Con_DPrintf("ERROR: can't %s vsync\n", vid_usevsync ? "activate" : "deactivate");
1390         }
1391 }
1392 #endif
1393                         SDL_GL_SwapBuffers();
1394                         break;
1395                 case RENDERPATH_SOFT:
1396                         DPSOFTRAST_Flush();
1397                         SDL_BlitSurface(vid_softsurface, NULL, screen, NULL);
1398                         SDL_Flip(screen);
1399                         break;
1400                 case RENDERPATH_D3D9:
1401                 case RENDERPATH_D3D10:
1402                 case RENDERPATH_D3D11:
1403                         break;
1404                 }
1405         }
1406 }
1407
1408 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1409 {
1410         size_t k;
1411         SDL_Rect **vidmodes;
1412         int bpp = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
1413
1414         k = 0;
1415         for(vidmodes = SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_HWSURFACE); *vidmodes; ++vidmodes)
1416         {
1417                 if(k >= maxcount)
1418                         break;
1419                 modes[k].width = (*vidmodes)->w;
1420                 modes[k].height = (*vidmodes)->h;
1421                 modes[k].bpp = bpp;
1422                 modes[k].refreshrate = 60; // no support for refresh rate in SDL
1423                 modes[k].pixelheight_num = 1;
1424                 modes[k].pixelheight_denom = 1; // SDL does not provide this
1425                 ++k;
1426         }
1427         return k;
1428 }