Xash3D FWGS engine.
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/*
events.c - SDL event system handlers
Copyright (C) 2015-2017 a1batross
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 3 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.
*/
#ifdef XASH_SDL
#include <SDL.h>
#include "common.h"
#include "keydefs.h"
#include "input.h"
#include "client.h"
#include "vgui_draw.h"
#include "events.h"
#include "sound.h"
#include "vid_common.h"
#include "gl_local.h"
extern convar_t *vid_fullscreen;
extern convar_t *snd_mute_losefocus;
static int wheelbutton;
static SDL_Joystick *joy;
static SDL_GameController *gamecontroller;
void R_ChangeDisplaySettingsFast( int w, int h );
/*
=============
SDLash_KeyEvent
=============
*/
static void SDLash_KeyEvent( SDL_KeyboardEvent key )
{
int down = key.state != SDL_RELEASED;
int keynum = key.keysym.scancode;
qboolean numLock = SDL_GetModState() & KMOD_NUM;
if( SDL_IsTextInputActive() && down )
{
if( SDL_GetModState() & KMOD_CTRL )
{
if( keynum >= SDL_SCANCODE_A && keynum <= SDL_SCANCODE_Z )
{
keynum = keynum - SDL_SCANCODE_A + 1;
CL_CharEvent( keynum );
}
return;
}
}
#define DECLARE_KEY_RANGE( min, max, repl ) \
if( keynum >= (min) && keynum <= (max) ) \
{ \
keynum = keynum - (min) + (repl); \
}
DECLARE_KEY_RANGE( SDL_SCANCODE_A, SDL_SCANCODE_Z, 'a' )
else DECLARE_KEY_RANGE( SDL_SCANCODE_1, SDL_SCANCODE_9, '1' )
else DECLARE_KEY_RANGE( SDL_SCANCODE_F1, SDL_SCANCODE_F12, K_F1 )
#undef DECLARE_KEY_RANGE
else
{
switch( keynum )
{
case SDL_SCANCODE_GRAVE: keynum = '`'; break;
case SDL_SCANCODE_0: keynum = '0'; break;
case SDL_SCANCODE_BACKSLASH: keynum = '\\'; break;
case SDL_SCANCODE_LEFTBRACKET: keynum = '['; break;
case SDL_SCANCODE_RIGHTBRACKET: keynum = ']'; break;
case SDL_SCANCODE_EQUALS: keynum = '='; break;
case SDL_SCANCODE_MINUS: keynum = '-'; break;
case SDL_SCANCODE_TAB: keynum = K_TAB; break;
case SDL_SCANCODE_RETURN: keynum = K_ENTER; break;
case SDL_SCANCODE_ESCAPE: keynum = K_ESCAPE; break;
case SDL_SCANCODE_SPACE: keynum = K_SPACE; break;
case SDL_SCANCODE_BACKSPACE: keynum = K_BACKSPACE; break;
case SDL_SCANCODE_UP: keynum = K_UPARROW; break;
case SDL_SCANCODE_LEFT: keynum = K_LEFTARROW; break;
case SDL_SCANCODE_DOWN: keynum = K_DOWNARROW; break;
case SDL_SCANCODE_RIGHT: keynum = K_RIGHTARROW; break;
case SDL_SCANCODE_LALT:
case SDL_SCANCODE_RALT: keynum = K_ALT; break;
case SDL_SCANCODE_LCTRL:
case SDL_SCANCODE_RCTRL: keynum = K_CTRL; break;
case SDL_SCANCODE_LSHIFT:
case SDL_SCANCODE_RSHIFT: keynum = K_SHIFT; break;
case SDL_SCANCODE_LGUI:
case SDL_SCANCODE_RGUI: keynum = K_WIN; break;
case SDL_SCANCODE_INSERT: keynum = K_INS; break;
case SDL_SCANCODE_DELETE: keynum = K_DEL; break;
case SDL_SCANCODE_PAGEDOWN: keynum = K_PGDN; break;
case SDL_SCANCODE_PAGEUP: keynum = K_PGUP; break;
case SDL_SCANCODE_HOME: keynum = K_HOME; break;
case SDL_SCANCODE_END: keynum = K_END; break;
case SDL_SCANCODE_KP_1: keynum = numLock ? '1' : K_KP_END; break;
case SDL_SCANCODE_KP_2: keynum = numLock ? '2' : K_KP_DOWNARROW; break;
case SDL_SCANCODE_KP_3: keynum = numLock ? '3' : K_KP_PGDN; break;
case SDL_SCANCODE_KP_4: keynum = numLock ? '4' : K_KP_LEFTARROW; break;
case SDL_SCANCODE_KP_5: keynum = numLock ? '5' : K_KP_5; break;
case SDL_SCANCODE_KP_6: keynum = numLock ? '6' : K_KP_RIGHTARROW; break;
case SDL_SCANCODE_KP_7: keynum = numLock ? '7' : K_KP_HOME; break;
case SDL_SCANCODE_KP_8: keynum = numLock ? '8' : K_KP_UPARROW; break;
case SDL_SCANCODE_KP_9: keynum = numLock ? '9' : K_KP_PGUP; break;
case SDL_SCANCODE_KP_0: keynum = numLock ? '0' : K_KP_INS; break;
case SDL_SCANCODE_KP_PERIOD: keynum = K_KP_DEL; break;
case SDL_SCANCODE_KP_ENTER: keynum = K_KP_ENTER; break;
case SDL_SCANCODE_KP_PLUS: keynum = K_KP_PLUS; break;
case SDL_SCANCODE_KP_MINUS: keynum = K_KP_MINUS; break;
case SDL_SCANCODE_KP_DIVIDE: keynum = K_KP_SLASH; break;
case SDL_SCANCODE_KP_MULTIPLY: keynum = '*'; break;
case SDL_SCANCODE_NUMLOCKCLEAR: keynum = K_KP_NUMLOCK; break;
case SDL_SCANCODE_CAPSLOCK: keynum = K_CAPSLOCK; break;
case SDL_SCANCODE_APPLICATION: keynum = K_WIN; break; // (compose key) ???
case SDL_SCANCODE_SLASH: keynum = '/'; break;
case SDL_SCANCODE_PERIOD: keynum = '.'; break;
case SDL_SCANCODE_SEMICOLON: keynum = ';'; break;
case SDL_SCANCODE_APOSTROPHE: keynum = '\''; break;
case SDL_SCANCODE_COMMA: keynum = ','; break;
case SDL_SCANCODE_PRINTSCREEN:
{
host.force_draw_version = true;
host.force_draw_version_time = host.realtime + FORCE_DRAW_VERSION_TIME;
break;
}
// don't console spam on known functional buttons, but not used in engine
case SDL_SCANCODE_MUTE:
case SDL_SCANCODE_VOLUMEUP:
case SDL_SCANCODE_VOLUMEDOWN:
case SDL_SCANCODE_BRIGHTNESSDOWN:
case SDL_SCANCODE_BRIGHTNESSUP:
return;
case SDL_SCANCODE_UNKNOWN:
{
if( down ) MsgDev( D_INFO, "SDLash_KeyEvent: Unknown scancode\n" );
return;
}
default:
if( down ) MsgDev( D_INFO, "SDLash_KeyEvent: Unknown key: %s = %i\n", SDL_GetScancodeName( keynum ), keynum );
return;
}
}
Key_Event( keynum, down );
}
/*
=============
SDLash_MouseEvent
=============
*/
static void SDLash_MouseEvent( SDL_MouseButtonEvent button )
{
int down = button.state != SDL_RELEASED;
if( in_mouseinitialized && !m_ignore->value && button.which != SDL_TOUCH_MOUSEID )
{
Key_Event( K_MOUSE1 - 1 + button.button, down );
}
}
/*
=============
SDLash_InputEvent
=============
*/
static void SDLash_InputEvent( SDL_TextInputEvent input )
{
for( char *text = input.text; *text; text++ )
{
int ch;
if( !Q_stricmp( cl_charset->string, "utf-8" ) )
ch = (unsigned char)*text;
else
ch = Con_UtfProcessCharForce( (unsigned char)*text );
if( !ch )
continue;
CL_CharEvent( ch );
}
}
/*
=============
SDLash_EnableTextInput
=============
*/
void SDLash_EnableTextInput( qboolean enable )
{
enable ? SDL_StartTextInput() : SDL_StopTextInput();
}
/*
=============
SDLash_EventFilter
=============
*/
static void SDLash_EventFilter( SDL_Event *event )
{
static int mdown;
if( wheelbutton )
{
Key_Event( wheelbutton, false );
wheelbutton = 0;
}
switch ( event->type )
{
/* Mouse events */
case SDL_MOUSEMOTION:
if( !host.mouse_visible && event->motion.which != SDL_TOUCH_MOUSEID )
IN_MouseEvent();
#ifdef TOUCHEMU
if( mdown )
IN_TouchEvent( event_motion, 0,
event->motion.x/scr_width->value,
event->motion.y/scr_height->value,
event->motion.xrel/scr_width->value,
event->motion.yrel/scr_height->value );
SDL_ShowCursor( true );
#endif
break;
case SDL_MOUSEBUTTONUP:
case SDL_MOUSEBUTTONDOWN:
#ifdef TOUCHEMU
mdown = event->button.state != SDL_RELEASED;
IN_TouchEvent( event_down, 0,
event->button.x/scr_width->value,
event->button.y/scr_height->value, 0, 0);
#else
SDLash_MouseEvent( event->button );
#endif
break;
case SDL_MOUSEWHEEL:
wheelbutton = event->wheel.y < 0 ? K_MWHEELDOWN : K_MWHEELUP;
Key_Event( wheelbutton, true );
break;
/* Keyboard events */
case SDL_KEYDOWN:
case SDL_KEYUP:
SDLash_KeyEvent( event->key );
break;
/* Touch events */
case SDL_FINGERDOWN:
case SDL_FINGERUP:
case SDL_FINGERMOTION:
{
touchEventType type;
static int scale = 0;
float x, y, dx, dy;
if( event->type == SDL_FINGERDOWN )
type = event_down;
else if( event->type == SDL_FINGERUP )
type = event_up ;
else if(event->type == SDL_FINGERMOTION )
type = event_motion;
else break;
/*
SDL sends coordinates in [0..width],[0..height] values
on some devices
*/
if( !scale )
{
if( ( event->tfinger.x > 0 ) && ( event->tfinger.y > 0 ) )
{
if( ( event->tfinger.x > 2 ) && ( event->tfinger.y > 2 ) )
{
scale = 2;
MsgDev( D_INFO, "SDL reports screen coordinates, workaround enabled!\n");
}
else
{
scale = 1;
}
}
}
x = event->tfinger.x;
y = event->tfinger.y;
dx = event->tfinger.dx;
dy = event->tfinger.dy;
if( scale == 2 )
{
x /= (float)glState.width;
y /= (float)glState.height;
dx /= (float)glState.width;
dy /= (float)glState.height;
}
IN_TouchEvent( type, event->tfinger.fingerId, x, y, dx, dy );
break;
}
/* IME */
case SDL_TEXTINPUT:
SDLash_InputEvent( event->text );
break;
/* Joystick events */
case SDL_JOYAXISMOTION:
Joy_AxisMotionEvent( event->jaxis.which, event->jaxis.axis, event->jaxis.value );
break;
case SDL_JOYBALLMOTION:
Joy_BallMotionEvent( event->jball.which, event->jball.ball, event->jball.xrel, event->jball.yrel );
break;
case SDL_JOYHATMOTION:
Joy_HatMotionEvent( event->jhat.which, event->jhat.hat, event->jhat.value );
break;
case SDL_JOYBUTTONDOWN:
case SDL_JOYBUTTONUP:
Joy_ButtonEvent( event->jbutton.which, event->jbutton.button, event->jbutton.state );
break;
case SDL_JOYDEVICEADDED:
Joy_AddEvent( event->jdevice.which );
break;
case SDL_JOYDEVICEREMOVED:
Joy_RemoveEvent( event->jdevice.which );
break;
/* GameController API */
case SDL_CONTROLLERAXISMOTION:
if( event->caxis.axis == (Uint8)SDL_CONTROLLER_AXIS_INVALID )
break;
// Swap axis to follow default axis binding:
// LeftX, LeftY, RightX, RightY, TriggerRight, TriggerLeft
if( event->caxis.axis == SDL_CONTROLLER_AXIS_TRIGGERLEFT )
event->caxis.axis = SDL_CONTROLLER_AXIS_TRIGGERRIGHT;
else if( event->caxis.axis == SDL_CONTROLLER_AXIS_TRIGGERRIGHT )
event->caxis.axis = SDL_CONTROLLER_AXIS_TRIGGERLEFT;
Joy_AxisMotionEvent( event->caxis.which, event->caxis.axis, event->caxis.value );
break;
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
{
static int sdlControllerButtonToEngine[] =
{
K_AUX16, // invalid
K_A_BUTTON, K_B_BUTTON, K_X_BUTTON, K_Y_BUTTON,
K_BACK_BUTTON, K_MODE_BUTTON, K_START_BUTTON,
K_LSTICK, K_RSTICK,
K_L1_BUTTON, K_R1_BUTTON,
K_UPARROW, K_DOWNARROW, K_LEFTARROW, K_RIGHTARROW
};
// TODO: Use joyinput funcs, for future multiple gamepads support
if( Joy_IsActive() )
Key_Event( sdlControllerButtonToEngine[event->cbutton.button], event->cbutton.state );
break;
}
case SDL_CONTROLLERDEVICEADDED:
Joy_AddEvent( event->cdevice.which );
break;
case SDL_CONTROLLERDEVICEREMOVED:
Joy_RemoveEvent( event->cdevice.which );
break;
case SDL_QUIT:
Sys_Quit();
break;
case SDL_WINDOWEVENT:
if( event->window.windowID != SDL_GetWindowID( host.hWnd ) )
return;
if( ( host.status == HOST_SHUTDOWN ) ||
( host.type == HOST_DEDICATED ) )
break; // no need to activate
switch( event->window.event )
{
case SDL_WINDOWEVENT_MOVED:
if( !vid_fullscreen->value )
{
Cvar_SetValue( "_window_xpos", (float)event->window.data1 );
Cvar_SetValue( "_window_ypos", (float)event->window.data1 );
}
break;
case SDL_WINDOWEVENT_RESTORED:
host.status = HOST_FRAME;
host.force_draw_version = true;
host.force_draw_version_time = host.realtime + 2;
if( vid_fullscreen->value )
VID_SetMode();
break;
case SDL_WINDOWEVENT_FOCUS_GAINED:
host.status = HOST_FRAME;
IN_ActivateMouse(true);
if( snd_mute_losefocus->value )
{
S_Activate( true );
}
host.force_draw_version = true;
host.force_draw_version_time = host.realtime + 2;
if( vid_fullscreen->value )
VID_SetMode();
break;
case SDL_WINDOWEVENT_MINIMIZED:
host.status = HOST_SLEEP;
VID_RestoreScreenResolution();
break;
case SDL_WINDOWEVENT_FOCUS_LOST:
#if TARGET_OS_IPHONE
{
// Keep running if ftp server enabled
void IOS_StartBackgroundTask( void );
IOS_StartBackgroundTask();
}
#endif
host.status = HOST_NOFOCUS;
IN_DeactivateMouse();
if( snd_mute_losefocus->value )
{
S_Activate( false );
}
host.force_draw_version = true;
host.force_draw_version_time = host.realtime + 1;
VID_RestoreScreenResolution();
break;
case SDL_WINDOWEVENT_CLOSE:
Sys_Quit();
break;
case SDL_WINDOWEVENT_RESIZED:
if( vid_fullscreen->value ) break;
Cvar_SetValue( "vid_mode", VID_NOMODE ); // no mode
R_ChangeDisplaySettingsFast( event->window.data1,
event->window.data2 );
break;
case SDL_WINDOWEVENT_MAXIMIZED:
{
int w, h;
if( vid_fullscreen->value ) break;
Cvar_SetValue( "vid_mode", VID_NOMODE ); // no mode
SDL_GL_GetDrawableSize( host.hWnd, &w, &h );
R_ChangeDisplaySettingsFast( w, h );
break;
}
default:
break;
}
}
}
/*
=============
SDLash_RunEvents
=============
*/
void SDLash_RunEvents( void )
{
SDL_Event event;
while( !host.crashed && !host.shutdown_issued && SDL_PollEvent( &event ) )
SDLash_EventFilter( &event );
}
/*
=============
SDLash_JoyInit_Old
=============
*/
static int SDLash_JoyInit_Old( int numjoy )
{
int num;
int i;
MsgDev( D_INFO, "Joystick: SDL\n" );
if( SDL_WasInit( SDL_INIT_JOYSTICK ) != SDL_INIT_JOYSTICK &&
SDL_InitSubSystem( SDL_INIT_JOYSTICK ) )
{
MsgDev( D_INFO, "Failed to initialize SDL Joysitck: %s\n", SDL_GetError() );
return 0;
}
if( joy )
{
SDL_JoystickClose( joy );
}
num = SDL_NumJoysticks();
if( num > 0 )
MsgDev( D_INFO, "%i joysticks found:\n", num );
else
{
MsgDev( D_INFO, "No joystick found.\n" );
return 0;
}
for( i = 0; i < num; i++ )
MsgDev( D_INFO, "%i\t: %s\n", i, SDL_JoystickNameForIndex( i ) );
MsgDev( D_INFO, "Pass +set joy_index N to command line, where N is number, to select active joystick\n" );
joy = SDL_JoystickOpen( numjoy );
if( !joy )
{
MsgDev( D_INFO, "Failed to select joystick: %s\n", SDL_GetError( ) );
return 0;
}
MsgDev( D_INFO, "Selected joystick: %s\n"
"\tAxes: %i\n"
"\tHats: %i\n"
"\tButtons: %i\n"
"\tBalls: %i\n",
SDL_JoystickName( joy ), SDL_JoystickNumAxes( joy ), SDL_JoystickNumHats( joy ),
SDL_JoystickNumButtons( joy ), SDL_JoystickNumBalls( joy ) );
SDL_GameControllerEventState( SDL_DISABLE );
SDL_JoystickEventState( SDL_ENABLE );
return num;
}
/*
=============
SDLash_JoyInit_New
=============
*/
static int SDLash_JoyInit_New( int numjoy )
{
int temp, num;
int i;
MsgDev( D_INFO, "Joystick: SDL GameController API\n" );
if( SDL_WasInit( SDL_INIT_GAMECONTROLLER ) != SDL_INIT_GAMECONTROLLER &&
SDL_InitSubSystem( SDL_INIT_GAMECONTROLLER ) )
{
MsgDev( D_INFO, "Failed to initialize SDL GameController API: %s\n", SDL_GetError() );
return 0;
}
// chance to add mappings from file
SDL_GameControllerAddMappingsFromFile( "controllermappings.txt" );
if( gamecontroller )
{
SDL_GameControllerClose( gamecontroller );
}
temp = SDL_NumJoysticks();
num = 0;
for( i = 0; i < temp; i++ )
{
if( SDL_IsGameController( i ))
num++;
}
if( num > 0 )
MsgDev( D_INFO, "%i joysticks found:\n", num );
else
{
MsgDev( D_INFO, "No joystick found.\n" );
return 0;
}
for( i = 0; i < num; i++ )
MsgDev( D_INFO, "%i\t: %s\n", i, SDL_GameControllerNameForIndex( i ) );
MsgDev( D_INFO, "Pass +set joy_index N to command line, where N is number, to select active joystick\n" );
gamecontroller = SDL_GameControllerOpen( numjoy );
if( !gamecontroller )
{
MsgDev( D_INFO, "Failed to select joystick: %s\n", SDL_GetError( ) );
return 0;
}
// was added in SDL2-2.0.6, allow build with earlier versions just in case
#if SDL_MAJOR_VERSION > 2 || SDL_MINOR_VERSION > 0 || SDL_PATCHLEVEL >= 6
MsgDev( D_INFO, "Selected joystick: %s (%i:%i:%i)\n",
SDL_GameControllerName( gamecontroller ),
SDL_GameControllerGetVendor( gamecontroller ),
SDL_GameControllerGetProduct( gamecontroller ),
SDL_GameControllerGetProductVersion( gamecontroller ));
#endif
SDL_GameControllerEventState( SDL_ENABLE );
SDL_JoystickEventState( SDL_DISABLE );
return num;
}
/*
=============
SDLash_JoyInit
=============
*/
int SDLash_JoyInit( int numjoy )
{
// SDL_Joystick is now an old API
// SDL_GameController is preferred
if( Sys_CheckParm( "-sdl_joy_old_api" ) )
return SDLash_JoyInit_Old(numjoy);
return SDLash_JoyInit_New(numjoy);
}
#endif // XASH_SDL