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sdl_input.cpp
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sdl_input.cpp
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/*
===========================================================================
Daemon GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company.
This file is part of the Daemon GPL Source Code (Daemon Source Code).
Daemon Source Code 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.
Daemon Source Code 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 Daemon Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Daemon Source Code is also subject to certain additional terms.
You should have received a copy of these additional terms immediately following the
terms and conditions of the GNU General Public License which accompanied the Daemon
Source Code. If not, please request a copy in writing from id Software at the address
below.
If you have questions concerning this license or the applicable additional terms, you
may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville,
Maryland 20850 USA.
===========================================================================
*/
#include <SDL.h>
#include "../client/client.h"
#include "../qcommon/q_unicode.h"
#include "../sys/sys_local.h"
#include "../framework/CommandSystem.h"
static cvar_t *in_keyboardDebug = NULL;
static SDL_Joystick *stick = NULL;
static qboolean mouseAvailable = qfalse;
qboolean mouseActive = qfalse;
static cvar_t *in_mouse = NULL;
static cvar_t *in_nograb;
static cvar_t *in_uigrab;
static cvar_t *in_joystick = NULL;
static cvar_t *in_joystickDebug = NULL;
static cvar_t *in_joystickThreshold = NULL;
static cvar_t *in_joystickNo = NULL;
static cvar_t *in_joystickUseAnalog = NULL;
//static cvar_t *in_fullscreen = NULL;
static cvar_t *in_xbox360Controller = NULL;
static cvar_t *in_xbox360ControllerAvailable = NULL;
static cvar_t *in_xbox360ControllerDebug = NULL;
#define CTRL(a) (( a ) - 'a' + 1 )
static SDL_Window *window = NULL;
void *IN_GetWindow( void )
{
return window;
}
/*
===============
IN_PrintKey
===============
*/
static void IN_PrintKey( const SDL_Keysym *keysym, keyNum_t key, qboolean down )
{
if ( keysym->mod & KMOD_LSHIFT ) { Com_Printf( " KMOD_LSHIFT" ); }
if ( keysym->mod & KMOD_RSHIFT ) { Com_Printf( " KMOD_RSHIFT" ); }
if ( keysym->mod & KMOD_LCTRL ) { Com_Printf( " KMOD_LCTRL" ); }
if ( keysym->mod & KMOD_RCTRL ) { Com_Printf( " KMOD_RCTRL" ); }
if ( keysym->mod & KMOD_LALT ) { Com_Printf( " KMOD_LALT" ); }
if ( keysym->mod & KMOD_RALT ) { Com_Printf( " KMOD_RALT" ); }
if ( keysym->mod & KMOD_LGUI ) { Com_Printf( " KMOD_LGUI" ); }
if ( keysym->mod & KMOD_RGUI ) { Com_Printf( " KMOD_RGUI" ); }
if ( keysym->mod & KMOD_NUM ) { Com_Printf( " KMOD_NUM" ); }
if ( keysym->mod & KMOD_CAPS ) { Com_Printf( " KMOD_CAPS" ); }
if ( keysym->mod & KMOD_MODE ) { Com_Printf( " KMOD_MODE" ); }
if ( keysym->mod & KMOD_RESERVED ) { Com_Printf( " KMOD_RESERVED" ); }
Com_Printf( "%c 0x%02x \"%s\" Q:0x%02x(%s)\n", down ? '+' : ' ', keysym->scancode,
SDL_GetKeyName( keysym->sym ), key, Key_KeynumToString( key ) );
}
#define MAX_CONSOLE_KEYS 16
/*
===============
IN_IsConsoleKey
TODO: If the SDL_Scancode situation improves, use it instead of
both of these methods
===============
*/
static qboolean IN_IsConsoleKey( keyNum_t key, const unsigned char character )
{
typedef struct consoleKey_s
{
enum
{
KEY,
CHARACTER
} type;
union
{
keyNum_t key;
int character;
} u;
} consoleKey_t;
static const struct {
char name[8];
int key;
} modMap[] = {
{ "shift", K_SHIFT },
{ "ctrl", K_CTRL },
{ "alt", K_ALT },
{ "super", K_SUPER },
};
static consoleKey_t consoleKeys[ MAX_CONSOLE_KEYS ];
static int numConsoleKeys = 0;
static int ifMod, unlessMod = 0;
int i;
// Only parse the variable when it changes
if ( cl_consoleKeys->modified )
{
char *text_p, *token;
cl_consoleKeys->modified = qfalse;
text_p = cl_consoleKeys->string;
numConsoleKeys = 0;
ifMod = unlessMod = 0;
while ( numConsoleKeys < MAX_CONSOLE_KEYS )
{
consoleKey_t *c = &consoleKeys[ numConsoleKeys ];
int charCode = 0;
token = COM_Parse( &text_p );
if ( !token[ 0 ] )
{
break;
}
if ( token[ 0 ] == '+' && token[ 1 ] )
{
for ( i = 0; i < ARRAY_LEN( modMap ); ++i )
{
if ( !Q_stricmp( token + 1, modMap[i].name ) )
{
ifMod |= 1 << i;
}
}
}
else if ( token[ 0 ] == '-' && token[ 1 ] )
{
for ( i = 0; i < ARRAY_LEN( modMap ); ++i )
{
if ( !Q_stricmp( token + 1, modMap[i].name ) )
{
unlessMod |= 1 << i;
}
}
}
else if ( strlen( token ) == 4 )
{
charCode = Com_HexStrToInt( token );
}
if ( charCode > 0 )
{
c->type = consoleKey_t::CHARACTER;
c->u.character = charCode;
}
else
{
c->type = consoleKey_t::KEY;
c->u.key = (keyNum_t) Key_StringToKeynum( token );
// 0 isn't a key
if ( c->u.key <= 0 )
{
continue;
}
}
numConsoleKeys++;
}
// if MOD is requested pressed and released, clear released
unlessMod &= ~ifMod;
}
// require a +MOD, if there are any, to be pressed
if ( ifMod )
{
qboolean flag = qfalse;
for ( i = 0; i < ARRAY_LEN( modMap ); ++i )
{
if ( ( ifMod & 1 << i ) && keys[ modMap[i].key ].down )
{
flag = qtrue;
break;
}
}
if ( !flag )
{
return qfalse;
}
}
// require all -MOD not to be pressed
if ( unlessMod )
{
for ( i = 0; i < ARRAY_LEN( modMap ); ++i )
{
if ( ( unlessMod & 1 << i ) && keys[ modMap[i].key ].down )
{
return qfalse;
}
}
}
// If the character is the same as the key, prefer the character
if ( key == character )
{
key = (keyNum_t) 0;
}
for ( i = 0; i < numConsoleKeys; i++ )
{
consoleKey_t *c = &consoleKeys[ i ];
switch ( c->type )
{
case consoleKey_t::KEY:
if ( key && c->u.key == key )
{
return qtrue;
}
break;
case consoleKey_t::CHARACTER:
if ( c->u.character == character )
{
return qtrue;
}
break;
}
}
return qfalse;
}
/*
===============
IN_TranslateSDLToQ3Key
===============
*/
static keyNum_t IN_TranslateSDLToQ3Key( SDL_Keysym *keysym, qboolean down )
{
keyNum_t key = (keyNum_t) 0;
if ( keysym->sym >= SDLK_SPACE && keysym->sym < SDLK_DELETE )
{
// These happen to match the ASCII chars
key = ( keyNum_t ) keysym->sym;
}
else
{
switch ( keysym->sym )
{
case SDLK_PAGEUP:
key = K_PGUP;
break;
case SDLK_KP_9:
key = K_KP_PGUP;
break;
case SDLK_PAGEDOWN:
key = K_PGDN;
break;
case SDLK_KP_3:
key = K_KP_PGDN;
break;
case SDLK_KP_7:
key = K_KP_HOME;
break;
case SDLK_HOME:
key = K_HOME;
break;
case SDLK_KP_1:
key = K_KP_END;
break;
case SDLK_END:
key = K_END;
break;
case SDLK_KP_4:
key = K_KP_LEFTARROW;
break;
case SDLK_LEFT:
key = K_LEFTARROW;
break;
case SDLK_KP_6:
key = K_KP_RIGHTARROW;
break;
case SDLK_RIGHT:
key = K_RIGHTARROW;
break;
case SDLK_KP_2:
key = K_KP_DOWNARROW;
break;
case SDLK_DOWN:
key = K_DOWNARROW;
break;
case SDLK_KP_8:
key = K_KP_UPARROW;
break;
case SDLK_UP:
key = K_UPARROW;
break;
case SDLK_ESCAPE:
key = K_ESCAPE;
break;
case SDLK_KP_ENTER:
key = K_KP_ENTER;
break;
case SDLK_RETURN:
key = K_ENTER;
break;
case SDLK_TAB:
key = K_TAB;
break;
case SDLK_F1:
key = K_F1;
break;
case SDLK_F2:
key = K_F2;
break;
case SDLK_F3:
key = K_F3;
break;
case SDLK_F4:
key = K_F4;
break;
case SDLK_F5:
key = K_F5;
break;
case SDLK_F6:
key = K_F6;
break;
case SDLK_F7:
key = K_F7;
break;
case SDLK_F8:
key = K_F8;
break;
case SDLK_F9:
key = K_F9;
break;
case SDLK_F10:
key = K_F10;
break;
case SDLK_F11:
key = K_F11;
break;
case SDLK_F12:
key = K_F12;
break;
case SDLK_F13:
key = K_F13;
break;
case SDLK_F14:
key = K_F14;
break;
case SDLK_F15:
key = K_F15;
break;
case SDLK_BACKSPACE:
key = K_BACKSPACE;
break;
case SDLK_KP_PERIOD:
key = K_KP_DEL;
break;
case SDLK_DELETE:
key = K_DEL;
break;
case SDLK_PAUSE:
key = K_PAUSE;
break;
case SDLK_LSHIFT:
case SDLK_RSHIFT:
key = K_SHIFT;
break;
case SDLK_LCTRL:
case SDLK_RCTRL:
key = K_CTRL;
break;
case SDLK_RGUI:
case SDLK_LGUI:
key = K_COMMAND;
break;
case SDLK_RALT:
case SDLK_LALT:
key = K_ALT;
break;
case SDLK_KP_5:
key = K_KP_5;
break;
case SDLK_INSERT:
key = K_INS;
break;
case SDLK_KP_0:
key = K_KP_INS;
break;
case SDLK_KP_MULTIPLY:
key = K_KP_STAR;
break;
case SDLK_KP_PLUS:
key = K_KP_PLUS;
break;
case SDLK_KP_MINUS:
key = K_KP_MINUS;
break;
case SDLK_KP_DIVIDE:
key = K_KP_SLASH;
break;
case SDLK_MODE:
key = K_MODE;
break;
case SDLK_HELP:
key = K_HELP;
break;
case SDLK_PRINTSCREEN:
key = K_PRINT;
break;
case SDLK_SYSREQ:
key = K_SYSREQ;
break;
case SDLK_MENU:
key = K_MENU;
break;
case SDLK_APPLICATION:
key = K_COMPOSE;
break;
case SDLK_POWER:
key = K_POWER;
break;
case SDLK_UNDO:
key = K_UNDO;
break;
case SDLK_SCROLLLOCK:
key = K_SCROLLOCK;
break;
case SDLK_NUMLOCKCLEAR:
key = K_KP_NUMLOCK;
break;
case SDLK_CAPSLOCK:
key = K_CAPSLOCK;
break;
default:
break;
}
}
if ( in_keyboardDebug->integer )
{
IN_PrintKey( keysym, key, down );
}
if ( IN_IsConsoleKey( key, 0 ) && !keys[ K_ALT ].down)
{
// Console keys can't be bound or generate characters
// (but allow Alt+key for text input)
key = K_CONSOLE;
}
return key;
}
/*
===============
IN_GobbleMotionEvents
===============
*/
static void IN_GobbleMotionEvents( void )
{
SDL_Event dummy[ 1 ];
// Gobble any mouse motion events
SDL_PumpEvents();
while ( SDL_PeepEvents( dummy, 1, SDL_GETEVENT,
SDL_MOUSEMOTION, SDL_MOUSEMOTION ) ) { }
}
/*
===============
IN_ActivateMouse
===============
*/
static void IN_ActivateMouse( void )
{
if ( !mouseAvailable || !SDL_WasInit( SDL_INIT_VIDEO ) )
{
return;
}
if ( !mouseActive )
{
SDL_ShowCursor( 0 );
SDL_SetRelativeMouseMode( SDL_TRUE );
SDL_SetWindowGrab( window, SDL_TRUE );
IN_GobbleMotionEvents();
}
// in_nograb makes no sense in fullscreen mode
if ( !cls.glconfig.isFullscreen )
{
if ( in_nograb->modified || !mouseActive )
{
if ( in_nograb->integer )
{
SDL_SetWindowGrab( window, SDL_FALSE );
}
else
{
SDL_SetWindowGrab( window, SDL_TRUE );
}
in_nograb->modified = qfalse;
}
}
mouseActive = qtrue;
}
/*
===============
IN_DeactivateMouse
===============
*/
void IN_DeactivateMouse( qboolean showCursor )
{
if ( !SDL_WasInit( SDL_INIT_VIDEO ) )
{
return;
}
// Show the cursor when the mouse is disabled,
// but not when fullscreen
SDL_ShowCursor( showCursor );
if ( !mouseAvailable )
{
return;
}
if ( mouseActive )
{
IN_GobbleMotionEvents();
SDL_SetWindowGrab( window, SDL_FALSE );
SDL_SetRelativeMouseMode( SDL_FALSE );
IN_GobbleMotionEvents();
mouseActive = qfalse;
}
}
// We translate axes movement into keypresses
static int joy_keys[ 16 ] =
{
K_LEFTARROW, K_RIGHTARROW,
K_UPARROW, K_DOWNARROW,
K_JOY16, K_JOY17,
K_JOY18, K_JOY19,
K_JOY20, K_JOY21,
K_JOY22, K_JOY23,
K_JOY24, K_JOY25,
K_JOY26, K_JOY27
};
// translate hat events into keypresses
// the 4 highest buttons are used for the first hat ...
static int hat_keys[ 16 ] =
{
K_JOY29, K_JOY30,
K_JOY31, K_JOY32,
K_JOY25, K_JOY26,
K_JOY27, K_JOY28,
K_JOY21, K_JOY22,
K_JOY23, K_JOY24,
K_JOY17, K_JOY18,
K_JOY19, K_JOY20
};
struct
{
qboolean buttons[ 16 ]; // !!! FIXME: these might be too many.
unsigned int oldaxes;
int oldaaxes[ 16 ];
unsigned int oldhats;
} stick_state;
/*
===============
IN_InitJoystick
===============
*/
static void IN_InitJoystick( void )
{
int i = 0;
int total = 0;
if ( stick != NULL )
{
SDL_JoystickClose( stick );
}
stick = NULL;
memset( &stick_state, '\0', sizeof( stick_state ) );
if ( !in_joystick->integer && !in_xbox360Controller->integer )
{
Com_DPrintf( "Joystick is not active.\n" );
if ( !in_xbox360Controller->integer )
{
Com_DPrintf( "Gamepad is not active.\n" );
Cvar_Set( "in_xbox360ControllerAvailable", "0" );
}
return;
}
if ( !SDL_WasInit( SDL_INIT_JOYSTICK ) )
{
Com_DPrintf( "Calling SDL_Init(SDL_INIT_JOYSTICK)...\n" );
if ( SDL_Init( SDL_INIT_JOYSTICK ) == -1 )
{
Com_DPrintf( "SDL_Init(SDL_INIT_JOYSTICK) failed: %s\n", SDL_GetError() );
return;
}
Com_DPrintf( "SDL_Init(SDL_INIT_JOYSTICK) passed.\n" );
}
total = SDL_NumJoysticks();
Com_DPrintf( "%d possible joysticks\n", total );
for ( i = 0; i < total; i++ )
{
Com_DPrintf( "[%d] %s\n", i, SDL_JoystickNameForIndex( i ) );
}
in_joystickNo = Cvar_Get( "in_joystickNo", "0", 0 );
if ( in_joystickNo->integer < 0 || in_joystickNo->integer >= total )
{
Cvar_Set( "in_joystickNo", "0" );
}
in_joystickUseAnalog = Cvar_Get( "in_joystickUseAnalog", "0", 0 );
stick = SDL_JoystickOpen( in_joystickNo->integer );
if ( stick == NULL )
{
Com_DPrintf( "No joystick opened.\n" );
return;
}
Com_DPrintf( "Joystick %d opened\n", in_joystickNo->integer );
Com_DPrintf( "Name: %s\n", SDL_JoystickNameForIndex( in_joystickNo->integer ) );
Com_DPrintf( "Axes: %d\n", SDL_JoystickNumAxes( stick ) );
Com_DPrintf( "Hats: %d\n", SDL_JoystickNumHats( stick ) );
Com_DPrintf( "Buttons: %d\n", SDL_JoystickNumButtons( stick ) );
Com_DPrintf( "Balls: %d\n", SDL_JoystickNumBalls( stick ) );
Com_DPrintf( "Use Analog: %s\n", in_joystickUseAnalog->integer ? "Yes" : "No" );
SDL_JoystickEventState( SDL_QUERY );
// XBox 360 controller support
if ( !Q_stricmp( SDL_JoystickNameForIndex( in_joystickNo->integer ), "Microsoft X-Box 360 pad" ) )
{
Cvar_Set( "in_xbox360ControllerAvailable", "1" );
}
else
{
Cvar_Set( "in_xbox360ControllerAvailable", "0" );
}
}
/*
===============
IN_ShutdownJoystick
===============
*/
static void IN_ShutdownJoystick( void )
{
if ( stick )
{
SDL_JoystickClose( stick );
stick = NULL;
}
SDL_QuitSubSystem( SDL_INIT_JOYSTICK );
}
/*
===============
IN_JoyMove
===============
*/
static void IN_JoyMove( void )
{
qboolean joy_pressed[ ARRAY_LEN( joy_keys ) ];
unsigned int axes = 0;
unsigned int hats = 0;
int total = 0;
int i = 0;
if ( !stick )
{
return;
}
if ( !in_joystick->integer )
{
return;
}
SDL_JoystickUpdate();
memset( joy_pressed, '\0', sizeof( joy_pressed ) );
// update the ball state.
total = SDL_JoystickNumBalls( stick );
if ( total > 0 )
{
int balldx = 0;
int balldy = 0;
for ( i = 0; i < total; i++ )
{
int dx = 0;
int dy = 0;
SDL_JoystickGetBall( stick, i, &dx, &dy );
balldx += dx;
balldy += dy;
}
if ( balldx || balldy )
{
// !!! FIXME: is this good for stick balls, or just mice?
// Scale like the mouse input...
if ( abs( balldx ) > 1 )
{
balldx *= 2;
}
if ( abs( balldy ) > 1 )
{
balldy *= 2;
}
Com_QueueEvent( 0, SE_MOUSE, balldx, balldy, 0, NULL );
}
}
// now query the stick buttons...
total = SDL_JoystickNumButtons( stick );
if ( total > 0 )
{
if ( total > ARRAY_LEN( stick_state.buttons ) )
{
total = ARRAY_LEN( stick_state.buttons );
}
for ( i = 0; i < total; i++ )
{
qboolean pressed = ( SDL_JoystickGetButton( stick, i ) != 0 );
if ( pressed != stick_state.buttons[ i ] )
{
if ( in_xbox360ControllerAvailable->integer )
{
if ( i == 0 )
{
Com_QueueEvent( 0, SE_KEY, K_XBOX360_A, pressed, 0, NULL );
}
}
else
{
Com_QueueEvent( 0, SE_KEY, K_JOY1 + i, pressed, 0, NULL );
}
stick_state.buttons[ i ] = pressed;
}
}
}
// look at the hats...
total = SDL_JoystickNumHats( stick );
if ( total > 0 )
{
if ( total > 4 ) { total = 4; }
for ( i = 0; i < total; i++ )
{
( ( Uint8 * ) &hats ) [ i ] = SDL_JoystickGetHat( stick, i );
}
}
// update hat state
if ( hats != stick_state.oldhats )
{
for ( i = 0; i < 4; i++ )
{
if ( ( ( Uint8 * ) &hats ) [ i ] != ( ( Uint8 * ) &stick_state.oldhats ) [ i ] )
{
// release event
switch ( ( ( Uint8 * ) &stick_state.oldhats ) [ i ] )
{
case SDL_HAT_UP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHT:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qfalse, 0, NULL );
break;
case SDL_HAT_DOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qfalse, 0, NULL );
break;
case SDL_HAT_LEFT:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHTUP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qfalse, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHTDOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qfalse, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qfalse, 0, NULL );
break;
case SDL_HAT_LEFTUP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qfalse, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qfalse, 0, NULL );
break;
case SDL_HAT_LEFTDOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qfalse, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qfalse, 0, NULL );
break;
default:
break;
}
// press event
switch ( ( ( Uint8 * ) &hats ) [ i ] )
{
case SDL_HAT_UP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHT:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qtrue, 0, NULL );
break;
case SDL_HAT_DOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qtrue, 0, NULL );
break;
case SDL_HAT_LEFT:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHTUP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qtrue, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHTDOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qtrue, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 1 ], qtrue, 0, NULL );
break;
case SDL_HAT_LEFTUP:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 0 ], qtrue, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qtrue, 0, NULL );
break;
case SDL_HAT_LEFTDOWN:
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 2 ], qtrue, 0, NULL );
Com_QueueEvent( 0, SE_KEY, hat_keys[ 4 * i + 3 ], qtrue, 0, NULL );