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vid_sdl.c
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/*
Copyright (C) 2003 T. Joseph Carter
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#undef WIN32_LEAN_AND_MEAN //hush a warning, SDL.h redefines this
#include <SDL.h>
#include <stdio.h>
#include "quakedef.h"
#include "image.h"
#include "utf8lib.h"
#ifndef __IPHONEOS__
#ifdef MACOSX
#include <Carbon/Carbon.h>
#include <IOKit/hidsystem/IOHIDLib.h>
#include <IOKit/hidsystem/IOHIDParameter.h>
#include <IOKit/hidsystem/event_status_driver.h>
#if (MAC_OS_X_VERSION_MIN_REQUIRED < 120000)
#define IOMainPort IOMasterPort
#endif
static cvar_t apple_mouse_noaccel = {CF_CLIENT | CF_ARCHIVE, "apple_mouse_noaccel", "1", "disables mouse acceleration while DarkPlaces is active"};
static qbool vid_usingnoaccel;
static double originalMouseSpeed = -1.0;
static io_connect_t IN_GetIOHandle(void)
{
io_connect_t iohandle = MACH_PORT_NULL;
kern_return_t status;
io_service_t iohidsystem = MACH_PORT_NULL;
mach_port_t masterport;
status = IOMainPort(MACH_PORT_NULL, &masterport);
if(status != KERN_SUCCESS)
return 0;
iohidsystem = IORegistryEntryFromPath(masterport, kIOServicePlane ":/IOResources/IOHIDSystem");
if(!iohidsystem)
return 0;
status = IOServiceOpen(iohidsystem, mach_task_self(), kIOHIDParamConnectType, &iohandle);
IOObjectRelease(iohidsystem);
return iohandle;
}
#endif
#endif
// Tell startup code that we have a client
int cl_available = true;
qbool vid_supportrefreshrate = false;
static qbool vid_usingmouse = false;
static qbool vid_usingmouse_relativeworks = false; // SDL2 workaround for unimplemented RelativeMouse mode
static qbool vid_usinghidecursor = false;
static qbool vid_hasfocus = false;
static qbool vid_wmborder_waiting, vid_wmborderless;
static SDL_Joystick *vid_sdljoystick = NULL;
static SDL_GameController *vid_sdlgamecontroller = NULL;
static cvar_t joy_sdl2_trigger_deadzone = {CF_ARCHIVE | CF_CLIENT, "joy_sdl2_trigger_deadzone", "0.5", "deadzone for triggers to be registered as key presses"};
// GAME_STEELSTORM specific
static cvar_t *steelstorm_showing_map = NULL; // detect but do not create the cvar
static cvar_t *steelstorm_showing_mousecursor = NULL; // detect but do not create the cvar
static SDL_GLContext context;
static SDL_Window *window;
// Input handling
#ifndef SDLK_PERCENT
#define SDLK_PERCENT '%'
#endif
static int MapKey( unsigned int sdlkey )
{
switch(sdlkey)
{
// sdlkey can be Unicode codepoint for non-ascii keys, which are valid
default: return sdlkey & SDLK_SCANCODE_MASK ? 0 : sdlkey;
// case SDLK_UNKNOWN: return K_UNKNOWN;
case SDLK_RETURN: return K_ENTER;
case SDLK_ESCAPE: return K_ESCAPE;
case SDLK_BACKSPACE: return K_BACKSPACE;
case SDLK_TAB: return K_TAB;
case SDLK_SPACE: return K_SPACE;
case SDLK_EXCLAIM: return '!';
case SDLK_QUOTEDBL: return '"';
case SDLK_HASH: return '#';
case SDLK_PERCENT: return '%';
case SDLK_DOLLAR: return '$';
case SDLK_AMPERSAND: return '&';
case SDLK_QUOTE: return '\'';
case SDLK_LEFTPAREN: return '(';
case SDLK_RIGHTPAREN: return ')';
case SDLK_ASTERISK: return '*';
case SDLK_PLUS: return '+';
case SDLK_COMMA: return ',';
case SDLK_MINUS: return '-';
case SDLK_PERIOD: return '.';
case SDLK_SLASH: return '/';
case SDLK_0: return '0';
case SDLK_1: return '1';
case SDLK_2: return '2';
case SDLK_3: return '3';
case SDLK_4: return '4';
case SDLK_5: return '5';
case SDLK_6: return '6';
case SDLK_7: return '7';
case SDLK_8: return '8';
case SDLK_9: return '9';
case SDLK_COLON: return ':';
case SDLK_SEMICOLON: return ';';
case SDLK_LESS: return '<';
case SDLK_EQUALS: return '=';
case SDLK_GREATER: return '>';
case SDLK_QUESTION: return '?';
case SDLK_AT: return '@';
case SDLK_LEFTBRACKET: return '[';
case SDLK_BACKSLASH: return '\\';
case SDLK_RIGHTBRACKET: return ']';
case SDLK_CARET: return '^';
case SDLK_UNDERSCORE: return '_';
case SDLK_BACKQUOTE: return '`';
case SDLK_a: return 'a';
case SDLK_b: return 'b';
case SDLK_c: return 'c';
case SDLK_d: return 'd';
case SDLK_e: return 'e';
case SDLK_f: return 'f';
case SDLK_g: return 'g';
case SDLK_h: return 'h';
case SDLK_i: return 'i';
case SDLK_j: return 'j';
case SDLK_k: return 'k';
case SDLK_l: return 'l';
case SDLK_m: return 'm';
case SDLK_n: return 'n';
case SDLK_o: return 'o';
case SDLK_p: return 'p';
case SDLK_q: return 'q';
case SDLK_r: return 'r';
case SDLK_s: return 's';
case SDLK_t: return 't';
case SDLK_u: return 'u';
case SDLK_v: return 'v';
case SDLK_w: return 'w';
case SDLK_x: return 'x';
case SDLK_y: return 'y';
case SDLK_z: return 'z';
case SDLK_CAPSLOCK: return K_CAPSLOCK;
case SDLK_F1: return K_F1;
case SDLK_F2: return K_F2;
case SDLK_F3: return K_F3;
case SDLK_F4: return K_F4;
case SDLK_F5: return K_F5;
case SDLK_F6: return K_F6;
case SDLK_F7: return K_F7;
case SDLK_F8: return K_F8;
case SDLK_F9: return K_F9;
case SDLK_F10: return K_F10;
case SDLK_F11: return K_F11;
case SDLK_F12: return K_F12;
case SDLK_PRINTSCREEN: return K_PRINTSCREEN;
case SDLK_SCROLLLOCK: return K_SCROLLOCK;
case SDLK_PAUSE: return K_PAUSE;
case SDLK_INSERT: return K_INS;
case SDLK_HOME: return K_HOME;
case SDLK_PAGEUP: return K_PGUP;
#ifdef __IPHONEOS__
case SDLK_DELETE: return K_BACKSPACE;
#else
case SDLK_DELETE: return K_DEL;
#endif
case SDLK_END: return K_END;
case SDLK_PAGEDOWN: return K_PGDN;
case SDLK_RIGHT: return K_RIGHTARROW;
case SDLK_LEFT: return K_LEFTARROW;
case SDLK_DOWN: return K_DOWNARROW;
case SDLK_UP: return K_UPARROW;
case SDLK_NUMLOCKCLEAR: return K_NUMLOCK;
case SDLK_KP_DIVIDE: return K_KP_DIVIDE;
case SDLK_KP_MULTIPLY: return K_KP_MULTIPLY;
case SDLK_KP_MINUS: return K_KP_MINUS;
case SDLK_KP_PLUS: return K_KP_PLUS;
case SDLK_KP_ENTER: return K_KP_ENTER;
case SDLK_KP_1: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_1 : K_END);
case SDLK_KP_2: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_2 : K_DOWNARROW);
case SDLK_KP_3: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_3 : K_PGDN);
case SDLK_KP_4: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_4 : K_LEFTARROW);
case SDLK_KP_5: return K_KP_5;
case SDLK_KP_6: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_6 : K_RIGHTARROW);
case SDLK_KP_7: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_7 : K_HOME);
case SDLK_KP_8: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_8 : K_UPARROW);
case SDLK_KP_9: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_9 : K_PGUP);
case SDLK_KP_0: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_0 : K_INS);
case SDLK_KP_PERIOD: return ((SDL_GetModState() & KMOD_NUM) ? K_KP_PERIOD : K_DEL);
// case SDLK_APPLICATION: return K_APPLICATION;
// case SDLK_POWER: return K_POWER;
case SDLK_KP_EQUALS: return K_KP_EQUALS;
// case SDLK_F13: return K_F13;
// case SDLK_F14: return K_F14;
// case SDLK_F15: return K_F15;
// case SDLK_F16: return K_F16;
// case SDLK_F17: return K_F17;
// case SDLK_F18: return K_F18;
// case SDLK_F19: return K_F19;
// case SDLK_F20: return K_F20;
// case SDLK_F21: return K_F21;
// case SDLK_F22: return K_F22;
// case SDLK_F23: return K_F23;
// case SDLK_F24: return K_F24;
// case SDLK_EXECUTE: return K_EXECUTE;
// case SDLK_HELP: return K_HELP;
// case SDLK_MENU: return K_MENU;
// case SDLK_SELECT: return K_SELECT;
// case SDLK_STOP: return K_STOP;
// case SDLK_AGAIN: return K_AGAIN;
// case SDLK_UNDO: return K_UNDO;
// case SDLK_CUT: return K_CUT;
// case SDLK_COPY: return K_COPY;
// case SDLK_PASTE: return K_PASTE;
// case SDLK_FIND: return K_FIND;
// case SDLK_MUTE: return K_MUTE;
// case SDLK_VOLUMEUP: return K_VOLUMEUP;
// case SDLK_VOLUMEDOWN: return K_VOLUMEDOWN;
// case SDLK_KP_COMMA: return K_KP_COMMA;
// case SDLK_KP_EQUALSAS400: return K_KP_EQUALSAS400;
// case SDLK_ALTERASE: return K_ALTERASE;
// case SDLK_SYSREQ: return K_SYSREQ;
// case SDLK_CANCEL: return K_CANCEL;
// case SDLK_CLEAR: return K_CLEAR;
// case SDLK_PRIOR: return K_PRIOR;
// case SDLK_RETURN2: return K_RETURN2;
// case SDLK_SEPARATOR: return K_SEPARATOR;
// case SDLK_OUT: return K_OUT;
// case SDLK_OPER: return K_OPER;
// case SDLK_CLEARAGAIN: return K_CLEARAGAIN;
// case SDLK_CRSEL: return K_CRSEL;
// case SDLK_EXSEL: return K_EXSEL;
// case SDLK_KP_00: return K_KP_00;
// case SDLK_KP_000: return K_KP_000;
// case SDLK_THOUSANDSSEPARATOR: return K_THOUSANDSSEPARATOR;
// case SDLK_DECIMALSEPARATOR: return K_DECIMALSEPARATOR;
// case SDLK_CURRENCYUNIT: return K_CURRENCYUNIT;
// case SDLK_CURRENCYSUBUNIT: return K_CURRENCYSUBUNIT;
// case SDLK_KP_LEFTPAREN: return K_KP_LEFTPAREN;
// case SDLK_KP_RIGHTPAREN: return K_KP_RIGHTPAREN;
// case SDLK_KP_LEFTBRACE: return K_KP_LEFTBRACE;
// case SDLK_KP_RIGHTBRACE: return K_KP_RIGHTBRACE;
// case SDLK_KP_TAB: return K_KP_TAB;
// case SDLK_KP_BACKSPACE: return K_KP_BACKSPACE;
// case SDLK_KP_A: return K_KP_A;
// case SDLK_KP_B: return K_KP_B;
// case SDLK_KP_C: return K_KP_C;
// case SDLK_KP_D: return K_KP_D;
// case SDLK_KP_E: return K_KP_E;
// case SDLK_KP_F: return K_KP_F;
// case SDLK_KP_XOR: return K_KP_XOR;
// case SDLK_KP_POWER: return K_KP_POWER;
// case SDLK_KP_PERCENT: return K_KP_PERCENT;
// case SDLK_KP_LESS: return K_KP_LESS;
// case SDLK_KP_GREATER: return K_KP_GREATER;
// case SDLK_KP_AMPERSAND: return K_KP_AMPERSAND;
// case SDLK_KP_DBLAMPERSAND: return K_KP_DBLAMPERSAND;
// case SDLK_KP_VERTICALBAR: return K_KP_VERTICALBAR;
// case SDLK_KP_DBLVERTICALBAR: return K_KP_DBLVERTICALBAR;
// case SDLK_KP_COLON: return K_KP_COLON;
// case SDLK_KP_HASH: return K_KP_HASH;
// case SDLK_KP_SPACE: return K_KP_SPACE;
// case SDLK_KP_AT: return K_KP_AT;
// case SDLK_KP_EXCLAM: return K_KP_EXCLAM;
// case SDLK_KP_MEMSTORE: return K_KP_MEMSTORE;
// case SDLK_KP_MEMRECALL: return K_KP_MEMRECALL;
// case SDLK_KP_MEMCLEAR: return K_KP_MEMCLEAR;
// case SDLK_KP_MEMADD: return K_KP_MEMADD;
// case SDLK_KP_MEMSUBTRACT: return K_KP_MEMSUBTRACT;
// case SDLK_KP_MEMMULTIPLY: return K_KP_MEMMULTIPLY;
// case SDLK_KP_MEMDIVIDE: return K_KP_MEMDIVIDE;
// case SDLK_KP_PLUSMINUS: return K_KP_PLUSMINUS;
// case SDLK_KP_CLEAR: return K_KP_CLEAR;
// case SDLK_KP_CLEARENTRY: return K_KP_CLEARENTRY;
// case SDLK_KP_BINARY: return K_KP_BINARY;
// case SDLK_KP_OCTAL: return K_KP_OCTAL;
// case SDLK_KP_DECIMAL: return K_KP_DECIMAL;
// case SDLK_KP_HEXADECIMAL: return K_KP_HEXADECIMAL;
case SDLK_LCTRL: return K_CTRL;
case SDLK_LSHIFT: return K_SHIFT;
case SDLK_LALT: return K_ALT;
// case SDLK_LGUI: return K_LGUI;
case SDLK_RCTRL: return K_CTRL;
case SDLK_RSHIFT: return K_SHIFT;
case SDLK_RALT: return K_ALT;
// case SDLK_RGUI: return K_RGUI;
// case SDLK_MODE: return K_MODE;
// case SDLK_AUDIONEXT: return K_AUDIONEXT;
// case SDLK_AUDIOPREV: return K_AUDIOPREV;
// case SDLK_AUDIOSTOP: return K_AUDIOSTOP;
// case SDLK_AUDIOPLAY: return K_AUDIOPLAY;
// case SDLK_AUDIOMUTE: return K_AUDIOMUTE;
// case SDLK_MEDIASELECT: return K_MEDIASELECT;
// case SDLK_WWW: return K_WWW;
// case SDLK_MAIL: return K_MAIL;
// case SDLK_CALCULATOR: return K_CALCULATOR;
// case SDLK_COMPUTER: return K_COMPUTER;
// case SDLK_AC_SEARCH: return K_AC_SEARCH; // Android button
// case SDLK_AC_HOME: return K_AC_HOME; // Android button
case SDLK_AC_BACK: return K_ESCAPE; // Android button
// case SDLK_AC_FORWARD: return K_AC_FORWARD; // Android button
// case SDLK_AC_STOP: return K_AC_STOP; // Android button
// case SDLK_AC_REFRESH: return K_AC_REFRESH; // Android button
// case SDLK_AC_BOOKMARKS: return K_AC_BOOKMARKS; // Android button
// case SDLK_BRIGHTNESSDOWN: return K_BRIGHTNESSDOWN;
// case SDLK_BRIGHTNESSUP: return K_BRIGHTNESSUP;
// case SDLK_DISPLAYSWITCH: return K_DISPLAYSWITCH;
// case SDLK_KBDILLUMTOGGLE: return K_KBDILLUMTOGGLE;
// case SDLK_KBDILLUMDOWN: return K_KBDILLUMDOWN;
// case SDLK_KBDILLUMUP: return K_KBDILLUMUP;
// case SDLK_EJECT: return K_EJECT;
// case SDLK_SLEEP: return K_SLEEP;
}
}
qbool VID_HasScreenKeyboardSupport(void)
{
return SDL_HasScreenKeyboardSupport() != SDL_FALSE;
}
void VID_ShowKeyboard(qbool show)
{
if (!SDL_HasScreenKeyboardSupport())
return;
if (show)
{
if (!SDL_IsTextInputActive())
SDL_StartTextInput();
}
else
{
if (SDL_IsTextInputActive())
SDL_StopTextInput();
}
}
qbool VID_ShowingKeyboard(void)
{
return SDL_IsTextInputActive() != 0;
}
static void VID_SetMouse(qbool relative, qbool hidecursor)
{
#ifndef DP_MOBILETOUCH
#ifdef MACOSX
if(relative)
if(vid_usingmouse && (vid_usingnoaccel != !!apple_mouse_noaccel.integer))
VID_SetMouse(false, false); // ungrab first!
#endif
if (vid_usingmouse != relative)
{
vid_usingmouse = relative;
cl_ignoremousemoves = 2;
vid_usingmouse_relativeworks = SDL_SetRelativeMouseMode(relative ? SDL_TRUE : SDL_FALSE) == 0;
// Con_Printf("VID_SetMouse(%i, %i) relativeworks = %i\n", (int)relative, (int)hidecursor, (int)vid_usingmouse_relativeworks);
#ifdef MACOSX
if(relative)
{
// Save the status of mouse acceleration
originalMouseSpeed = -1.0; // in case of error
if(apple_mouse_noaccel.integer)
{
io_connect_t mouseDev = IN_GetIOHandle();
if(mouseDev != 0)
{
if(IOHIDGetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), &originalMouseSpeed) == kIOReturnSuccess)
{
Con_DPrintf("previous mouse acceleration: %f\n", originalMouseSpeed);
if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), -1.0) != kIOReturnSuccess)
{
Con_Print("Could not disable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
}
}
else
{
Con_Print("Could not disable mouse acceleration (failed at IOHIDGetAccelerationWithKey).\n");
Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
}
IOServiceClose(mouseDev);
}
else
{
Con_Print("Could not disable mouse acceleration (failed at IO_GetIOHandle).\n");
Cvar_SetValueQuick(&apple_mouse_noaccel, 0);
}
}
vid_usingnoaccel = !!apple_mouse_noaccel.integer;
}
else
{
if(originalMouseSpeed != -1.0)
{
io_connect_t mouseDev = IN_GetIOHandle();
if(mouseDev != 0)
{
Con_DPrintf("restoring mouse acceleration to: %f\n", originalMouseSpeed);
if(IOHIDSetAccelerationWithKey(mouseDev, CFSTR(kIOHIDMouseAccelerationType), originalMouseSpeed) != kIOReturnSuccess)
Con_Print("Could not re-enable mouse acceleration (failed at IOHIDSetAccelerationWithKey).\n");
IOServiceClose(mouseDev);
}
else
Con_Print("Could not re-enable mouse acceleration (failed at IO_GetIOHandle).\n");
}
}
#endif
}
if (vid_usinghidecursor != hidecursor)
{
vid_usinghidecursor = hidecursor;
SDL_ShowCursor( hidecursor ? SDL_DISABLE : SDL_ENABLE);
}
#endif
}
// multitouch[10][] represents the mouse pointer
// multitouch[][0]: finger active
// multitouch[][1]: Y
// multitouch[][2]: Y
// X and Y coordinates are 0-1.
#define MAXFINGERS 11
float multitouch[MAXFINGERS][3];
// this one stores how many areas this finger has touched
int multitouchs[MAXFINGERS];
// modified heavily by ELUAN
static qbool VID_TouchscreenArea(int corner, float px, float py, float pwidth, float pheight, const char *icon, float textheight, const char *text, float *resultmove, qbool *resultbutton, keynum_t key, const char *typedtext, float deadzone, float oversizepixels_x, float oversizepixels_y, qbool iamexclusive)
{
int finger;
float fx, fy, fwidth, fheight;
float overfx, overfy, overfwidth, overfheight;
float rel[3];
float sqsum;
qbool button = false;
VectorClear(rel);
if (pwidth > 0 && pheight > 0)
{
if (corner & 1) px += vid_conwidth.value;
if (corner & 2) py += vid_conheight.value;
if (corner & 4) px += vid_conwidth.value * 0.5f;
if (corner & 8) py += vid_conheight.value * 0.5f;
if (corner & 16) {px *= vid_conwidth.value * (1.0f / 640.0f);py *= vid_conheight.value * (1.0f / 480.0f);pwidth *= vid_conwidth.value * (1.0f / 640.0f);pheight *= vid_conheight.value * (1.0f / 480.0f);}
fx = px / vid_conwidth.value;
fy = py / vid_conheight.value;
fwidth = pwidth / vid_conwidth.value;
fheight = pheight / vid_conheight.value;
// try to prevent oversizepixels_* from interfering with the iamexclusive cvar by not letting we start controlling from too far of the actual touch area (areas without resultbuttons should NEVER have the oversizepixels_* parameters set to anything other than 0)
if (resultbutton)
if (!(*resultbutton))
{
oversizepixels_x *= 0.2;
oversizepixels_y *= 0.2;
}
oversizepixels_x /= vid_conwidth.value;
oversizepixels_y /= vid_conheight.value;
overfx = fx - oversizepixels_x;
overfy = fy - oversizepixels_y;
overfwidth = fwidth + 2*oversizepixels_x;
overfheight = fheight + 2*oversizepixels_y;
for (finger = 0;finger < MAXFINGERS;finger++)
{
if (multitouchs[finger] && iamexclusive) // for this to work correctly, you must call touch areas in order of highest to lowest priority
continue;
if (multitouch[finger][0] && multitouch[finger][1] >= overfx && multitouch[finger][2] >= overfy && multitouch[finger][1] < overfx + overfwidth && multitouch[finger][2] < overfy + overfheight)
{
multitouchs[finger]++;
rel[0] = bound(-1, (multitouch[finger][1] - (fx + 0.5f * fwidth)) * (2.0f / fwidth), 1);
rel[1] = bound(-1, (multitouch[finger][2] - (fy + 0.5f * fheight)) * (2.0f / fheight), 1);
rel[2] = 0;
sqsum = rel[0]*rel[0] + rel[1]*rel[1];
// 2d deadzone
if (sqsum < deadzone*deadzone)
{
rel[0] = 0;
rel[1] = 0;
}
else if (sqsum > 1)
{
// ignore the third component
Vector2Normalize2(rel, rel);
}
button = true;
break;
}
}
if (scr_numtouchscreenareas < 128)
{
scr_touchscreenareas[scr_numtouchscreenareas].pic = icon;
scr_touchscreenareas[scr_numtouchscreenareas].text = text;
scr_touchscreenareas[scr_numtouchscreenareas].textheight = textheight;
scr_touchscreenareas[scr_numtouchscreenareas].rect[0] = px;
scr_touchscreenareas[scr_numtouchscreenareas].rect[1] = py;
scr_touchscreenareas[scr_numtouchscreenareas].rect[2] = pwidth;
scr_touchscreenareas[scr_numtouchscreenareas].rect[3] = pheight;
scr_touchscreenareas[scr_numtouchscreenareas].active = button;
// the pics may have alpha too.
scr_touchscreenareas[scr_numtouchscreenareas].activealpha = 1.f;
scr_touchscreenareas[scr_numtouchscreenareas].inactivealpha = 0.95f;
scr_numtouchscreenareas++;
}
}
if (resultmove)
{
if (button)
VectorCopy(rel, resultmove);
else
VectorClear(resultmove);
}
if (resultbutton)
{
if (*resultbutton != button)
{
if ((int)key > 0)
Key_Event(key, 0, button);
if (typedtext && typedtext[0] && !*resultbutton)
{
// FIXME: implement UTF8 support - nothing actually specifies a UTF8 string here yet, but should support it...
int i;
for (i = 0;typedtext[i];i++)
{
Key_Event(K_TEXT, typedtext[i], true);
Key_Event(K_TEXT, typedtext[i], false);
}
}
}
*resultbutton = button;
}
return button;
}
// ELUAN:
// not reentrant, but we only need one mouse cursor anyway...
static void VID_TouchscreenCursor(float px, float py, float pwidth, float pheight, qbool *resultbutton, keynum_t key)
{
int finger;
float fx, fy, fwidth, fheight;
qbool button = false;
static int cursorfinger = -1;
static int cursorfreemovement = false;
static int canclick = false;
static int clickxy[2];
static int relclickxy[2];
static double clickrealtime = 0;
if (steelstorm_showing_mousecursor && steelstorm_showing_mousecursor->integer)
if (pwidth > 0 && pheight > 0)
{
fx = px / vid_conwidth.value;
fy = py / vid_conheight.value;
fwidth = pwidth / vid_conwidth.value;
fheight = pheight / vid_conheight.value;
for (finger = 0;finger < MAXFINGERS;finger++)
{
if (multitouch[finger][0] && multitouch[finger][1] >= fx && multitouch[finger][2] >= fy && multitouch[finger][1] < fx + fwidth && multitouch[finger][2] < fy + fheight)
{
if (cursorfinger == -1)
{
clickxy[0] = multitouch[finger][1] * vid_width.value - 0.5f * pwidth;
clickxy[1] = multitouch[finger][2] * vid_height.value - 0.5f * pheight;
relclickxy[0] = (multitouch[finger][1] - fx) * vid_width.value - 0.5f * pwidth;
relclickxy[1] = (multitouch[finger][2] - fy) * vid_height.value - 0.5f * pheight;
}
cursorfinger = finger;
button = true;
canclick = true;
cursorfreemovement = false;
break;
}
}
if (scr_numtouchscreenareas < 128)
{
if (clickrealtime + 1 > host.realtime)
{
scr_touchscreenareas[scr_numtouchscreenareas].pic = "gfx/gui/touch_puck_cur_click.tga";
}
else if (button)
{
scr_touchscreenareas[scr_numtouchscreenareas].pic = "gfx/gui/touch_puck_cur_touch.tga";
}
else
{
switch ((int)host.realtime * 10 % 20)
{
case 0:
scr_touchscreenareas[scr_numtouchscreenareas].pic = "gfx/gui/touch_puck_cur_touch.tga";
break;
default:
scr_touchscreenareas[scr_numtouchscreenareas].pic = "gfx/gui/touch_puck_cur_idle.tga";
}
}
scr_touchscreenareas[scr_numtouchscreenareas].text = "";
scr_touchscreenareas[scr_numtouchscreenareas].textheight = 0;
scr_touchscreenareas[scr_numtouchscreenareas].rect[0] = px;
scr_touchscreenareas[scr_numtouchscreenareas].rect[1] = py;
scr_touchscreenareas[scr_numtouchscreenareas].rect[2] = pwidth;
scr_touchscreenareas[scr_numtouchscreenareas].rect[3] = pheight;
scr_touchscreenareas[scr_numtouchscreenareas].active = button;
scr_touchscreenareas[scr_numtouchscreenareas].activealpha = 1.0f;
scr_touchscreenareas[scr_numtouchscreenareas].inactivealpha = 1.0f;
scr_numtouchscreenareas++;
}
}
if (cursorfinger != -1)
{
if (multitouch[cursorfinger][0])
{
if (multitouch[cursorfinger][1] * vid_width.value - 0.5f * pwidth < clickxy[0] - 1 ||
multitouch[cursorfinger][1] * vid_width.value - 0.5f * pwidth > clickxy[0] + 1 ||
multitouch[cursorfinger][2] * vid_height.value - 0.5f * pheight< clickxy[1] - 1 ||
multitouch[cursorfinger][2] * vid_height.value - 0.5f * pheight> clickxy[1] + 1) // finger drifted more than the allowed amount
{
cursorfreemovement = true;
}
if (cursorfreemovement)
{
// in_windowmouse_x* is in screen resolution coordinates, not console resolution
in_windowmouse_x = multitouch[cursorfinger][1] * vid_width.value - 0.5f * pwidth - relclickxy[0];
in_windowmouse_y = multitouch[cursorfinger][2] * vid_height.value - 0.5f * pheight - relclickxy[1];
}
}
else
{
cursorfinger = -1;
}
}
if (resultbutton)
{
if (/**resultbutton != button && */(int)key > 0)
{
if (!button && !cursorfreemovement && canclick)
{
Key_Event(key, 0, true);
canclick = false;
clickrealtime = host.realtime;
}
// SS:BR can't qc can't cope with presses and releases on the same frame
if (clickrealtime && clickrealtime + 0.1 < host.realtime)
{
Key_Event(key, 0, false);
clickrealtime = 0;
}
}
*resultbutton = button;
}
}
void VID_BuildJoyState(vid_joystate_t *joystate)
{
VID_Shared_BuildJoyState_Begin(joystate);
if (vid_sdljoystick)
{
SDL_Joystick *joy = vid_sdljoystick;
int j;
if (vid_sdlgamecontroller)
{
for (j = 0; j <= SDL_CONTROLLER_AXIS_MAX; ++j)
{
joystate->axis[j] = SDL_GameControllerGetAxis(vid_sdlgamecontroller, (SDL_GameControllerAxis)j) * (1.0f / 32767.0f);
}
for (j = 0; j < SDL_CONTROLLER_BUTTON_MAX; ++j)
joystate->button[j] = SDL_GameControllerGetButton(vid_sdlgamecontroller, (SDL_GameControllerButton)j);
// emulate joy buttons for trigger "axes"
joystate->button[SDL_CONTROLLER_BUTTON_MAX] = VID_JoyState_GetAxis(joystate, SDL_CONTROLLER_AXIS_TRIGGERLEFT, 1, joy_sdl2_trigger_deadzone.value) > 0.0f;
joystate->button[SDL_CONTROLLER_BUTTON_MAX+1] = VID_JoyState_GetAxis(joystate, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 1, joy_sdl2_trigger_deadzone.value) > 0.0f;
}
else
{
int numaxes;
int numbuttons;
numaxes = SDL_JoystickNumAxes(joy);
for (j = 0;j < numaxes;j++)
joystate->axis[j] = SDL_JoystickGetAxis(joy, j) * (1.0f / 32767.0f);
numbuttons = SDL_JoystickNumButtons(joy);
for (j = 0;j < numbuttons;j++)
joystate->button[j] = SDL_JoystickGetButton(joy, j);
}
}
VID_Shared_BuildJoyState_Finish(joystate);
}
// clear every touch screen area, except the one with button[skip]
#define Vid_ClearAllTouchscreenAreas(skip) \
if (skip != 0) \
VID_TouchscreenCursor(0, 0, 0, 0, &buttons[0], K_MOUSE1); \
if (skip != 1) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, move, &buttons[1], K_MOUSE4, NULL, 0, 0, 0, false); \
if (skip != 2) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, aim, &buttons[2], K_MOUSE5, NULL, 0, 0, 0, false); \
if (skip != 3) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[3], K_SHIFT, NULL, 0, 0, 0, false); \
if (skip != 4) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[4], K_MOUSE2, NULL, 0, 0, 0, false); \
if (skip != 9) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[9], K_MOUSE3, NULL, 0, 0, 0, false); \
if (skip != 10) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[10], (keynum_t)'m', NULL, 0, 0, 0, false); \
if (skip != 11) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[11], (keynum_t)'b', NULL, 0, 0, 0, false); \
if (skip != 12) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[12], (keynum_t)'q', NULL, 0, 0, 0, false); \
if (skip != 13) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, false); \
if (skip != 14) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, false); \
if (skip != 15) \
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[15], K_SPACE, NULL, 0, 0, 0, false); \
/////////////////////
// Movement handling
////
static void IN_Move_TouchScreen_SteelStorm(void)
{
// ELUAN
int i, numfingers;
float xscale, yscale;
float move[3], aim[3];
static qbool oldbuttons[128];
static qbool buttons[128];
keydest_t keydest = (key_consoleactive & KEY_CONSOLEACTIVE_USER) ? key_console : key_dest;
memcpy(oldbuttons, buttons, sizeof(oldbuttons));
memset(multitouchs, 0, sizeof(multitouchs));
for (i = 0, numfingers = 0; i < MAXFINGERS - 1; i++)
if (multitouch[i][0])
numfingers++;
/*
Enable this to use a mouse as a touch device (it may conflict with the iamexclusive parameter if a finger is also reported as a mouse at the same location
if (numfingers == 1)
{
multitouch[MAXFINGERS-1][0] = SDL_GetMouseState(&x, &y) ? 11 : 0;
multitouch[MAXFINGERS-1][1] = (float)x / vid.width;
multitouch[MAXFINGERS-1][2] = (float)y / vid.height;
}
else
{
// disable it so it doesn't get stuck, because SDL seems to stop updating it if there are more than 1 finger on screen
multitouch[MAXFINGERS-1][0] = 0;
}*/
// TODO: make touchscreen areas controlled by a config file or the VMs. THIS IS A MESS!
// TODO: can't just clear buttons[] when entering a new keydest, some keys would remain pressed
// SS:BR menuqc has many peculiarities, including that it can't accept more than one command per frame and pressing and releasing on the same frame
// Tuned for the SGS3, use it's value as a base. CLEAN THIS.
xscale = vid_touchscreen_density.value / 2.0f;
yscale = vid_touchscreen_density.value / 2.0f;
switch(keydest)
{
case key_console:
Vid_ClearAllTouchscreenAreas(14);
VID_TouchscreenArea( 0, 0, 160, 64, 64, "gfx/gui/touch_menu_button.tga" , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, false);
break;
case key_game:
if (steelstorm_showing_map && steelstorm_showing_map->integer) // FIXME: another hack to be removed when touchscreen areas go to QC
{
VID_TouchscreenArea( 0, 0, 0, vid_conwidth.value, vid_conheight.value, NULL , 0.0f, NULL, NULL, &buttons[10], (keynum_t)'m', NULL, 0, 0, 0, false);
Vid_ClearAllTouchscreenAreas(10);
}
else if (steelstorm_showing_mousecursor && steelstorm_showing_mousecursor->integer)
{
// in_windowmouse_x* is in screen resolution coordinates, not console resolution
VID_TouchscreenCursor((float)in_windowmouse_x/vid_width.value*vid_conwidth.value, (float)in_windowmouse_y/vid_height.value*vid_conheight.value, 192*xscale, 192*yscale, &buttons[0], K_MOUSE1);
Vid_ClearAllTouchscreenAreas(0);
}
else
{
VID_TouchscreenCursor(0, 0, 0, 0, &buttons[0], K_MOUSE1);
VID_TouchscreenArea( 2,16*xscale,-240*yscale, 224*xscale, 224*yscale, "gfx/gui/touch_l_thumb_dpad.tga", 0.0f, NULL, move, &buttons[1], (keynum_t)0, NULL, 0.15, 112*xscale, 112*yscale, false);
VID_TouchscreenArea( 3,-240*xscale,-160*yscale, 224*xscale, 128*yscale, "gfx/gui/touch_r_thumb_turn_n_shoot.tga" , 0.0f, NULL, NULL, 0, (keynum_t)0, NULL, 0, 56*xscale, 0, false);
VID_TouchscreenArea( 3,-240*xscale,-256*yscale, 224*xscale, 224*yscale, NULL , 0.0f, NULL, aim, &buttons[2], (keynum_t)0, NULL, 0.2, 56*xscale, 0, false);
VID_TouchscreenArea( 2, (vid_conwidth.value / 2) - 128,-80, 256, 80, NULL, 0.0f, NULL, NULL, &buttons[3], K_SHIFT, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 3,-240*xscale,-256*yscale, 224*xscale, 64*yscale, "gfx/gui/touch_secondary_slide.tga", 0.0f, NULL, NULL, &buttons[4], K_MOUSE2, NULL, 0, 56*xscale, 0, false);
VID_TouchscreenArea( 3,-240*xscale,-256*yscale, 224*xscale, 160*yscale, NULL , 0.0f, NULL, NULL, &buttons[9], K_MOUSE3, NULL, 0.2, 56*xscale, 0, false);
VID_TouchscreenArea( 1,-100, 0, 100, 100, NULL , 0.0f, NULL, NULL, &buttons[10], (keynum_t)'m', NULL, 0, 0, 0, true);
VID_TouchscreenArea( 1,-100, 120, 100, 100, NULL , 0.0f, NULL, NULL, &buttons[11], (keynum_t)'b', NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 64, 64, NULL , 0.0f, NULL, NULL, &buttons[12], (keynum_t)'q', NULL, 0, 0, 0, true);
if (developer.integer)
VID_TouchscreenArea( 0, 0, 96, 64, 64, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, true);
else
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, false);
VID_TouchscreenArea( 0, 0, 160, 64, 64, "gfx/gui/touch_menu_button.tga" , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, true);
switch(cl.activeweapon)
{
case 14:
VID_TouchscreenArea( 2, 16*xscale,-320*yscale, 224*xscale, 64*yscale, "gfx/gui/touch_booster.tga" , 0.0f, NULL, NULL, &buttons[15], K_SPACE, NULL, 0, 0, 0, true);
break;
case 12:
VID_TouchscreenArea( 2, 16*xscale,-320*yscale, 224*xscale, 64*yscale, "gfx/gui/touch_shockwave.tga" , 0.0f, NULL, NULL, &buttons[15], K_SPACE, NULL, 0, 0, 0, true);
break;
default:
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[15], K_SPACE, NULL, 0, 0, 0, false);
}
}
break;
default:
if (!steelstorm_showing_mousecursor || !steelstorm_showing_mousecursor->integer)
{
Vid_ClearAllTouchscreenAreas(14);
// this way we can skip cutscenes
VID_TouchscreenArea( 0, 0, 0, vid_conwidth.value, vid_conheight.value, NULL , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, false);
}
else
{
// in_windowmouse_x* is in screen resolution coordinates, not console resolution
VID_TouchscreenCursor((float)in_windowmouse_x/vid_width.value*vid_conwidth.value, (float)in_windowmouse_y/vid_height.value*vid_conheight.value, 192*xscale, 192*yscale, &buttons[0], K_MOUSE1);
Vid_ClearAllTouchscreenAreas(0);
}
break;
}
if (VID_ShowingKeyboard() && (float)in_windowmouse_y > vid_height.value / 2 - 10)
in_windowmouse_y = 128;
cl.cmd.forwardmove -= move[1] * cl_forwardspeed.value;
cl.cmd.sidemove += move[0] * cl_sidespeed.value;
cl.viewangles[0] += aim[1] * cl_pitchspeed.value * cl.realframetime;
cl.viewangles[1] -= aim[0] * cl_yawspeed.value * cl.realframetime;
}
static void IN_Move_TouchScreen_Quake(void)
{
int x, y;
float move[3], aim[3], click[3];
static qbool oldbuttons[128];
static qbool buttons[128];
keydest_t keydest = (key_consoleactive & KEY_CONSOLEACTIVE_USER) ? key_console : key_dest;
memcpy(oldbuttons, buttons, sizeof(oldbuttons));
memset(multitouchs, 0, sizeof(multitouchs));
// simple quake controls
multitouch[MAXFINGERS-1][0] = SDL_GetMouseState(&x, &y);
multitouch[MAXFINGERS-1][1] = x * 32768 / vid.mode.width;
multitouch[MAXFINGERS-1][2] = y * 32768 / vid.mode.height;
// top of screen is toggleconsole and K_ESCAPE
switch(keydest)
{
case key_console:
VID_TouchscreenArea( 0, 0, 0, 64, 64, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 64, 0, 64, 64, "gfx/touch_menu.tga" , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, true);
if (!VID_ShowingKeyboard())
{
// user entered a command, close the console now
Con_ToggleConsole_f(cmd_local);
}
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[15], (keynum_t)0, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, move, &buttons[0], K_MOUSE4, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, aim, &buttons[1], K_MOUSE5, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, click,&buttons[2], K_MOUSE1, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[3], K_SPACE, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[4], K_MOUSE2, NULL, 0, 0, 0, true);
break;
case key_game:
VID_TouchscreenArea( 0, 0, 0, 64, 64, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 64, 0, 64, 64, "gfx/touch_menu.tga" , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 2, 0,-128, 128, 128, "gfx/touch_movebutton.tga" , 0.0f, NULL, move, &buttons[0], K_MOUSE4, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 3,-128,-128, 128, 128, "gfx/touch_aimbutton.tga" , 0.0f, NULL, aim, &buttons[1], K_MOUSE5, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 2, 0,-160, 64, 32, "gfx/touch_jumpbutton.tga" , 0.0f, NULL, NULL, &buttons[3], K_SPACE, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 3,-128,-160, 64, 32, "gfx/touch_attackbutton.tga" , 0.0f, NULL, NULL, &buttons[2], K_MOUSE1, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 3, -64,-160, 64, 32, "gfx/touch_attack2button.tga", 0.0f, NULL, NULL, &buttons[4], K_MOUSE2, NULL, 0, 0, 0, true);
buttons[15] = false;
break;
default:
VID_TouchscreenArea( 0, 0, 0, 64, 64, NULL , 0.0f, NULL, NULL, &buttons[13], (keynum_t)'`', NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 64, 0, 64, 64, "gfx/touch_menu.tga" , 0.0f, NULL, NULL, &buttons[14], K_ESCAPE, NULL, 0, 0, 0, true);
// in menus, an icon in the corner activates keyboard
VID_TouchscreenArea( 2, 0, -32, 32, 32, "gfx/touch_keyboard.tga" , 0.0f, NULL, NULL, &buttons[15], (keynum_t)0, NULL, 0, 0, 0, true);
if (buttons[15])
VID_ShowKeyboard(true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, move, &buttons[0], K_MOUSE4, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, aim, &buttons[1], K_MOUSE5, NULL, 0, 0, 0, true);
VID_TouchscreenArea(16, -320,-480,640, 960, NULL , 0.0f, NULL, click,&buttons[2], K_MOUSE1, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[3], K_SPACE, NULL, 0, 0, 0, true);
VID_TouchscreenArea( 0, 0, 0, 0, 0, NULL , 0.0f, NULL, NULL, &buttons[4], K_MOUSE2, NULL, 0, 0, 0, true);
if (buttons[2])
{
in_windowmouse_x = x;
in_windowmouse_y = y;
}
break;
}
cl.cmd.forwardmove -= move[1] * cl_forwardspeed.value;
cl.cmd.sidemove += move[0] * cl_sidespeed.value;
cl.viewangles[0] += aim[1] * cl_pitchspeed.value * cl.realframetime;
cl.viewangles[1] -= aim[0] * cl_yawspeed.value * cl.realframetime;
}
void IN_Move( void )
{
static int old_x = 0, old_y = 0;
static int stuck = 0;
static keydest_t oldkeydest;
static qbool oldshowkeyboard;
int x, y;
vid_joystate_t joystate;
keydest_t keydest = (key_consoleactive & KEY_CONSOLEACTIVE_USER) ? key_console : key_dest;
scr_numtouchscreenareas = 0;
// Only apply the new keyboard state if the input changes.
if (keydest != oldkeydest || !!vid_touchscreen_showkeyboard.integer != oldshowkeyboard)
{
switch(keydest)
{
case key_console: VID_ShowKeyboard(true);break;
case key_message: VID_ShowKeyboard(true);break;
default: VID_ShowKeyboard(!!vid_touchscreen_showkeyboard.integer); break;
}
}
oldkeydest = keydest;
oldshowkeyboard = !!vid_touchscreen_showkeyboard.integer;
if (vid_touchscreen.integer)
{
switch(gamemode)
{
case GAME_STEELSTORM:
IN_Move_TouchScreen_SteelStorm();
break;
default:
IN_Move_TouchScreen_Quake();
break;
}
}
else
{
if (vid_usingmouse)
{
if (vid_stick_mouse.integer || !vid_usingmouse_relativeworks)
{
// have the mouse stuck in the middle, example use: prevent expose effect of beryl during the game when not using
// window grabbing. --blub
int win_half_width = vid.mode.width>>1;
int win_half_height = vid.mode.height>>1;
// we need 2 frames to initialize the center position
if(!stuck)
{
SDL_WarpMouseInWindow(window, win_half_width, win_half_height);
SDL_GetMouseState(&x, &y);
SDL_GetRelativeMouseState(&x, &y);
++stuck;
} else {
SDL_GetRelativeMouseState(&x, &y);
in_mouse_x = x + old_x;
in_mouse_y = y + old_y;
SDL_GetMouseState(&x, &y);
old_x = x - win_half_width;
old_y = y - win_half_height;
SDL_WarpMouseInWindow(window, win_half_width, win_half_height);
}
} else {