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quadrilateralcowboy/sys/events.cpp

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/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
Doom 3 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.
Doom 3 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 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 Doom 3 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.
===========================================================================
*/
#ifdef USE_SDL
#include "../idlib/precompiled.h"
#include "../idlib/containers/List.h"
#include "../idlib/Heap.h"
#include "../framework/Common.h"
#include "../framework/KeyInput.h"
#include "../renderer/RenderSystem.h"
#include "../renderer/tr_local.h"
#include "../sys/sys_public.h"
#ifdef __WINDOWS__
#include "win32/win_local.h"
#include <SDL_syswm.h>
#endif
extern bool g_inputGrabbed;
const char *kbdNames[] = {
"english", "french", "german", "italian", "spanish", "turkish", "norwegian", NULL
};
idCVar in_kbd("in_kbd", "english", CVAR_SYSTEM | CVAR_ARCHIVE | CVAR_NOCHEAT, "keyboard layout", kbdNames, idCmdSystem::ArgCompletion_String<kbdNames> );
struct kbd_poll_t {
int key;
bool state;
kbd_poll_t() {
}
kbd_poll_t(int k, bool s) {
key = k;
state = s;
}
};
struct mouse_poll_t {
int action;
int value;
mouse_poll_t() {
}
mouse_poll_t(int a, int v) {
action = a;
value = v;
}
};
struct joystick_poll_t {
int action;
int value;
joystick_poll_t() {
}
joystick_poll_t(int a, int v) {
action = a;
value = v;
}
};
static idList<kbd_poll_t> kbd_polls;
static idList<mouse_poll_t> mouse_polls;
static idList<joystick_poll_t> joystick_polls;
static bool buttonStates[K_LAST_KEY];
static int joyAxis[MAX_JOYSTICK_AXIS];
static idList<sysEvent_t> event_overflow;
static byte mapkey(SDL_Keycode key) {
switch (key) {
case SDLK_BACKSPACE:
return K_BACKSPACE;
case SDLK_PAUSE:
return K_PAUSE;
}
if (key <= SDLK_z)
return key & 0xff;
switch (key) {
case SDLK_APPLICATION:
return K_COMMAND;
case SDLK_CAPSLOCK:
return K_CAPSLOCK;
case SDLK_SCROLLLOCK:
return K_SCROLL;
case SDLK_POWER:
return K_POWER;
case SDLK_UP:
return K_UPARROW;
case SDLK_DOWN:
return K_DOWNARROW;
case SDLK_LEFT:
return K_LEFTARROW;
case SDLK_RIGHT:
return K_RIGHTARROW;
case SDLK_LGUI:
return K_LWIN;
case SDLK_RGUI:
return K_RWIN;
case SDLK_MENU:
return K_MENU;
case SDLK_LALT:
case SDLK_RALT:
return K_ALT;
case SDLK_RCTRL:
case SDLK_LCTRL:
return K_CTRL;
case SDLK_RSHIFT:
case SDLK_LSHIFT:
return K_SHIFT;
case SDLK_INSERT:
return K_INS;
case SDLK_DELETE:
return K_DEL;
case SDLK_PAGEDOWN:
return K_PGDN;
case SDLK_PAGEUP:
return K_PGUP;
case SDLK_HOME:
return K_HOME;
case SDLK_END:
return K_END;
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;
// K_INVERTED_EXCLAMATION;
case SDLK_F13:
return K_F13;
case SDLK_F14:
return K_F14;
case SDLK_F15:
return K_F15;
case SDLK_KP_7:
return K_KP_HOME;
case SDLK_KP_8:
return K_KP_UPARROW;
case SDLK_KP_9:
return K_KP_PGUP;
case SDLK_KP_4:
return K_KP_LEFTARROW;
case SDLK_KP_5:
return K_KP_5;
case SDLK_KP_6:
return K_KP_RIGHTARROW;
case SDLK_KP_1:
return K_KP_END;
case SDLK_KP_2:
return K_KP_DOWNARROW;
case SDLK_KP_3:
return K_KP_PGDN;
case SDLK_KP_ENTER:
return K_KP_ENTER;
case SDLK_KP_0:
return K_KP_INS;
case SDLK_KP_PERIOD:
return K_KP_DEL;
case SDLK_KP_DIVIDE:
return K_KP_SLASH;
// K_SUPERSCRIPT_TWO;
case SDLK_KP_MINUS:
return K_KP_MINUS;
// K_ACUTE_ACCENT;
case SDLK_KP_PLUS:
return K_KP_PLUS;
case SDLK_NUMLOCKCLEAR:
return K_KP_NUMLOCK;
case SDLK_KP_MULTIPLY:
return K_KP_STAR;
case SDLK_KP_EQUALS:
return K_KP_EQUALS;
// K_MASCULINE_ORDINATOR;
// K_GRAVE_A;
// K_AUX1;
// K_CEDILLA_C;
// K_GRAVE_E;
// K_AUX2;
// K_AUX3;
// K_AUX4;
// K_GRAVE_I;
// K_AUX5;
// K_AUX6;
// K_AUX7;
// K_AUX8;
// K_TILDE_N;
// K_GRAVE_O;
// K_AUX9;
// K_AUX10;
// K_AUX11;
// K_AUX12;
// K_AUX13;
// K_AUX14;
// K_GRAVE_U;
// K_AUX15;
// K_AUX16;
case SDLK_PRINTSCREEN:
return K_PRINT_SCR;
case SDLK_MODE:
return K_RIGHT_ALT;
}
return 0;
}
static sys_jEvents mapjoybutton(SDL_GameControllerButton button) {
switch (button)
{
case SDL_CONTROLLER_BUTTON_A:
return J_ACTION1;
case SDL_CONTROLLER_BUTTON_B:
return J_ACTION2;
case SDL_CONTROLLER_BUTTON_X:
return J_ACTION3;
case SDL_CONTROLLER_BUTTON_Y:
return J_ACTION4;
case SDL_CONTROLLER_BUTTON_BACK:
return J_ACTION10;
case SDL_CONTROLLER_BUTTON_GUIDE:
// TODO:
break;
case SDL_CONTROLLER_BUTTON_START:
return J_ACTION9;
case SDL_CONTROLLER_BUTTON_LEFTSTICK:
return J_ACTION7;
case SDL_CONTROLLER_BUTTON_RIGHTSTICK:
return J_ACTION8;
case SDL_CONTROLLER_BUTTON_LEFTSHOULDER:
return J_ACTION5;
case SDL_CONTROLLER_BUTTON_RIGHTSHOULDER:
return J_ACTION6;
case SDL_CONTROLLER_BUTTON_DPAD_UP:
return J_DPAD_UP;
case SDL_CONTROLLER_BUTTON_DPAD_DOWN:
return J_DPAD_DOWN;
case SDL_CONTROLLER_BUTTON_DPAD_LEFT:
return J_DPAD_LEFT;
case SDL_CONTROLLER_BUTTON_DPAD_RIGHT:
return J_DPAD_RIGHT;
default:
common->Warning("unknown game controller button %u", button);
break;
}
return MAX_JOY_EVENT;
}
static sys_jEvents mapjoyaxis(SDL_GameControllerAxis axis) {
switch (axis)
{
case SDL_CONTROLLER_AXIS_LEFTX:
return J_AXIS_LEFT_X;
case SDL_CONTROLLER_AXIS_LEFTY:
return J_AXIS_LEFT_Y;
case SDL_CONTROLLER_AXIS_RIGHTX:
return J_AXIS_RIGHT_X;
case SDL_CONTROLLER_AXIS_RIGHTY:
return J_AXIS_RIGHT_Y;
case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
return J_AXIS_LEFT_TRIG;
case SDL_CONTROLLER_AXIS_TRIGGERRIGHT:
return J_AXIS_RIGHT_TRIG;
default:
common->Warning("unknown game controller axis %u", axis);
break;
}
return J_AXIS_MAX;
}
static void PushConsoleEvent(const char *s) {
char *b;
size_t len;
len = strlen(s) + 1;
b = (char *)Mem_Alloc(len);
strcpy(b, s);
SDL_Event event;
event.type = SDL_USEREVENT;
event.user.code = SE_CONSOLE;
event.user.data1 = (void *)len;
event.user.data2 = b;
SDL_PushEvent(&event);
}
/*
=================
Sys_InitInput
=================
*/
void Sys_InitInput() {
kbd_polls.SetGranularity(64);
mouse_polls.SetGranularity(64);
joystick_polls.SetGranularity(64);
event_overflow.SetGranularity(64);
memset( buttonStates, 0, sizeof( buttonStates ) );
memset( joyAxis, 0, sizeof( joyAxis ) );
in_kbd.SetModified();
const int NumJoysticks = SDL_NumJoysticks();
for( int i = 0; i < NumJoysticks; ++i )
{
SDL_GameControllerOpen( i );
}
}
/*
=================
Sys_ShutdownInput
=================
*/
void Sys_ShutdownInput() {
kbd_polls.Clear();
mouse_polls.Clear();
joystick_polls.Clear();
event_overflow.Clear();
}
/*
===========
Sys_InitScanTable
===========
*/
// Windows has its own version due to the tools
#ifndef _WIN32
void Sys_InitScanTable() {
}
#endif
/*
===============
Sys_GetConsoleKey
===============
*/
unsigned char Sys_GetConsoleKey(bool shifted) {
static unsigned char keys[2] = { '`', '~' };
if (in_kbd.IsModified()) {
idStr lang = in_kbd.GetString();
if (lang.Length()) {
if (!lang.Icmp("french")) {
keys[0] = '<';
keys[1] = '>';
} else if (!lang.Icmp("german")) {
keys[0] = '^';
keys[1] = 176; // °
} else if (!lang.Icmp("italian")) {
keys[0] = '\\';
keys[1] = '|';
} else if (!lang.Icmp("spanish")) {
keys[0] = 186; // º
keys[1] = 170; // ª
} else if (!lang.Icmp("turkish")) {
keys[0] = '"';
keys[1] = 233; // é
} else if (!lang.Icmp("norwegian")) {
keys[0] = 124; // |
keys[1] = 167; // §
}
}
in_kbd.ClearModified();
}
return shifted ? keys[1] : keys[0];
}
/*
===============
Sys_MapCharForKey
===============
*/
unsigned char Sys_MapCharForKey(int key) {
return key & 0xff;
}
/*
===============
Sys_GrabMouseCursor
===============
*/
void Sys_GrabMouseCursor(bool grabIt) {
int flags;
if (grabIt)
flags = GRAB_ENABLE | GRAB_HIDECURSOR;
else
flags = 0;
GLimp_GrabInput(flags);
}
void PushButton( int key, bool value ) {
// So we don't keep sending the same SE_KEY message over and over again
if ( buttonStates[key] != value ) {
buttonStates[key] = value;
sysEvent_t res = { SE_KEY, key, value ? 1 : 0, 0, NULL };
event_overflow.Append(res);
}
}
/*
================
Sys_GetEvent
================
*/
sysEvent_t Sys_GetEvent() {
SDL_Event ev;
sysEvent_t res = { };
byte key;
static const sysEvent_t res_none = { SE_NONE, 0, 0, 0, NULL };
// process any overflow.
if (event_overflow.Num() > 0)
{
res = event_overflow[0];
event_overflow.RemoveIndex(0);
return res;
}
// overflow text input.
static char *s = NULL;
static size_t s_pos = 0;
if (s) {
res.evType = SE_CHAR;
res.evValue = s[s_pos];
s_pos++;
if (!s[s_pos]) {
free(s);
s = NULL;
s_pos = 0;
}
return res;
}
static byte c = 0;
if (c) {
res.evType = SE_CHAR;
res.evValue = c;
c = 0;
return res;
}
bool getNext = true;
while (SDL_PollEvent(&ev) && getNext) {
getNext = false;
switch (ev.type) {
#ifdef __WINDOWS__ // on windows we need to grab the hwnd.
case SDL_SYSWMEVENT:
if (win32.hWnd == NULL)
{
win32.hWnd = ev.syswm.msg->msg.win.hwnd;
}
getNext = true; // try to get a decent event.
break;
#endif
case SDL_WINDOWEVENT:
switch (ev.window.event) {
case SDL_WINDOWEVENT_FOCUS_GAINED: {
// unset modifier, in case alt-tab was used to leave window and ALT is still set
// as that can cause fullscreen-toggling when pressing enter...
SDL_Keymod currentmod = SDL_GetModState();
int newmod = KMOD_NONE;
if (currentmod & KMOD_CAPS) // preserve capslock
newmod |= KMOD_CAPS;
SDL_SetModState((SDL_Keymod)newmod);
} // new context because visual studio complains about newmod and currentmod not initialized because of the case SDL_WINDOWEVENT_FOCUS_LOST
GLimp_GrabInput(GRAB_ENABLE | GRAB_REENABLE | GRAB_HIDECURSOR);
break;
case SDL_WINDOWEVENT_FOCUS_LOST:
GLimp_GrabInput(0);
break;
}
return res_none;
case SDL_KEYDOWN:
if (ev.key.keysym.sym == SDLK_RETURN && (ev.key.keysym.mod & KMOD_ALT) > 0) {
cvarSystem->SetCVarBool("r_fullscreen", !renderSystem->IsFullScreen());
PushConsoleEvent("vid_restart");
return res_none;
}
// fall through
case SDL_KEYUP:
key = mapkey(ev.key.keysym.sym);
if(!key) {
if (ev.key.keysym.scancode == SDL_SCANCODE_GRAVE) {
key = Sys_GetConsoleKey(true);
} else {
if (ev.type == SDL_KEYDOWN) {
common->Warning("unmapped SDL key %d", ev.key.keysym.sym);
getNext = true; // try to get a decent event.
break;
}
}
}
res.evType = SE_KEY;
res.evValue = key;
res.evValue2 = ev.key.state == SDL_PRESSED ? 1 : 0;
kbd_polls.Append(kbd_poll_t(key, ev.key.state == SDL_PRESSED));
if ( (key == K_BACKSPACE && ev.key.state == SDL_PRESSED)
|| SDL_GetEventState(SDL_TEXTINPUT) == SDL_DISABLE)
c = key;
return res;
case SDL_TEXTINPUT:
if (ev.text.text && *ev.text.text) {
res.evType = SE_CHAR;
res.evValue = *ev.text.text;
// if there are more characters hold onto them for later events.
if (ev.text.text[1] != 0)
s = strdup(ev.text.text+1);
return res;
}
getNext = true; // try to get a decent event.
break;
case SDL_MOUSEMOTION:
if (g_inputGrabbed)
{
res.evType = SE_MOUSE;
res.evValue = ev.motion.xrel;
res.evValue2 = ev.motion.yrel;
mouse_polls.Append(mouse_poll_t(M_DELTAX, ev.motion.xrel));
mouse_polls.Append(mouse_poll_t(M_DELTAY, ev.motion.yrel));
return res;
}
getNext = true;
break;
case SDL_MOUSEWHEEL:
if (g_inputGrabbed)
{
res.evType = SE_KEY;
if (ev.wheel.y > 0) {
res.evValue = K_MWHEELUP;
mouse_polls.Append(mouse_poll_t(M_DELTAZ, 1));
} else {
res.evValue = K_MWHEELDOWN;
mouse_polls.Append(mouse_poll_t(M_DELTAZ, -1));
}
res.evValue2 = 1;
return res;
}
getNext = true;
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
if (g_inputGrabbed)
{
res.evType = SE_KEY;
switch (ev.button.button) {
case SDL_BUTTON_LEFT:
res.evValue = K_MOUSE1;
mouse_polls.Append(mouse_poll_t(M_ACTION1, ev.button.state == SDL_PRESSED ? 1 : 0));
break;
case SDL_BUTTON_MIDDLE:
res.evValue = K_MOUSE3;
mouse_polls.Append(mouse_poll_t(M_ACTION3, ev.button.state == SDL_PRESSED ? 1 : 0));
break;
case SDL_BUTTON_RIGHT:
res.evValue = K_MOUSE2;
mouse_polls.Append(mouse_poll_t(M_ACTION2, ev.button.state == SDL_PRESSED ? 1 : 0));
break;
}
res.evValue2 = ev.button.state == SDL_PRESSED ? 1 : 0;
return res;
}
getNext = true;
break;
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
{
sys_jEvents jEvent = mapjoybutton( (SDL_GameControllerButton)ev.cbutton.button);
joystick_polls.Append(joystick_poll_t( jEvent,
ev.cbutton.state == SDL_PRESSED ? 1 : 0) );
res.evType = SE_KEY;
res.evValue2 = ev.cbutton.state == SDL_PRESSED ? 1 : 0;
if ( ( jEvent >= J_ACTION1 ) && ( jEvent <= J_ACTION_MAX ) ) {
res.evValue = K_JOY1 + ( jEvent - J_ACTION1 );
return res;
} else if ( ( jEvent >= J_DPAD_UP ) && ( jEvent <= J_DPAD_RIGHT ) ) {
res.evValue = K_JOY_DPAD_UP + ( jEvent - J_DPAD_UP );
return res;
}
getNext = true; // try to get a decent event.
}
break;
case SDL_CONTROLLERAXISMOTION:
{
const int range = 16384;
sys_jEvents jEvent = mapjoyaxis( (SDL_GameControllerAxis)ev.caxis.axis);
joystick_polls.Append(joystick_poll_t( jEvent, ev.caxis.value) );
if ( jEvent == J_AXIS_LEFT_X ) {
PushButton( K_JOY_STICK1_LEFT, ( ev.caxis.value < -range ) );
PushButton( K_JOY_STICK1_RIGHT, ( ev.caxis.value > range ) );
} else if ( jEvent == J_AXIS_LEFT_Y ) {
PushButton( K_JOY_STICK1_UP, ( ev.caxis.value < -range ) );
PushButton( K_JOY_STICK1_DOWN, ( ev.caxis.value > range ) );
} else if ( jEvent == J_AXIS_RIGHT_X ) {
PushButton( K_JOY_STICK2_LEFT, ( ev.caxis.value < -range ) );
PushButton( K_JOY_STICK2_RIGHT, ( ev.caxis.value > range ) );
} else if ( jEvent == J_AXIS_RIGHT_Y ) {
PushButton( K_JOY_STICK2_UP, ( ev.caxis.value < -range ) );
PushButton( K_JOY_STICK2_DOWN, ( ev.caxis.value > range ) );
} else if ( jEvent == J_AXIS_LEFT_TRIG ) {
PushButton( K_JOY_TRIGGER1, ( ev.caxis.value > range ) );
} else if ( jEvent == J_AXIS_RIGHT_TRIG ) {
PushButton( K_JOY_TRIGGER2, ( ev.caxis.value > range ) );
}
if ( jEvent >= J_AXIS_MIN && jEvent <= J_AXIS_MAX ) {
int axis = jEvent - J_AXIS_MIN;
int percent = ( ev.caxis.value * 16 ) / range;
if ( joyAxis[axis] != percent ) {
joyAxis[axis] = percent;
res.evType = SE_JOYSTICK;
res.evValue = axis;
res.evValue2 = percent;
return res;
}
}
getNext = true; // try to get a decent event.
}
break;
case SDL_JOYDEVICEADDED:
SDL_GameControllerOpen( ev.jdevice.which );
// TODO: hot swapping maybe.
//lbOnControllerPlugIn(event.jdevice.which);
break;
case SDL_JOYDEVICEREMOVED:
// TODO: hot swapping maybe.
//lbOnControllerUnPlug(event.jdevice.which);
break;
case SDL_QUIT:
PushConsoleEvent("quit");
return res_none;
case SDL_USEREVENT:
switch (ev.user.code) {
case SE_CONSOLE:
res.evType = SE_CONSOLE;
res.evPtrLength = (intptr_t)ev.user.data1;
res.evPtr = ev.user.data2;
return res;
default:
common->Warning("unknown user event %u", ev.user.code);
getNext = true; // try to get a decent event.
break;
}
default:
getNext = true; // try to get a decent event.
break;
}
}
return res_none;
}
/*
================
Sys_ClearEvents
================
*/
void Sys_ClearEvents() {
SDL_Event ev;
while (SDL_PollEvent(&ev))
;
kbd_polls.SetNum(0, false);
mouse_polls.SetNum(0, false);
joystick_polls.SetNum(0, false);
memset( buttonStates, 0, sizeof( buttonStates ) );
memset( joyAxis, 0, sizeof( joyAxis ) );
event_overflow.SetNum(0, false);
}
/*
================
Sys_GenerateEvents
================
*/
void Sys_GenerateEvents() {
char *s = Sys_ConsoleInput();
if (s)
PushConsoleEvent(s);
SDL_PumpEvents();
}
/*
================
Sys_PollKeyboardInputEvents
================
*/
int Sys_PollKeyboardInputEvents() {
return kbd_polls.Num();
}
/*
================
Sys_ReturnKeyboardInputEvent
================
*/
int Sys_ReturnKeyboardInputEvent(const int n, int &key, bool &state) {
if (n >= kbd_polls.Num())
return 0;
key = kbd_polls[n].key;
state = kbd_polls[n].state;
return 1;
}
/*
================
Sys_EndKeyboardInputEvents
================
*/
void Sys_EndKeyboardInputEvents() {
kbd_polls.SetNum(0, false);
}
/*
================
Sys_PollMouseInputEvents
================
*/
int Sys_PollMouseInputEvents() {
return mouse_polls.Num();
}
/*
================
Sys_ReturnMouseInputEvent
================
*/
int Sys_ReturnMouseInputEvent(const int n, int &action, int &value) {
if (n >= mouse_polls.Num())
return 0;
action = mouse_polls[n].action;
value = mouse_polls[n].value;
return 1;
}
/*
================
Sys_EndMouseInputEvents
================
*/
void Sys_EndMouseInputEvents() {
mouse_polls.SetNum(0, false);
}
/*
================
Joystick Input Methods
================
*/
void Sys_SetRumble( int device, int low, int hi ) {
// TODO: support multiple controllers.
assert(device == 0);
// TODO: support rumble maybe.
assert(0);
}
int Sys_PollJoystickInputEvents( int deviceNum ) {
// TODO: support multiple controllers.
assert(deviceNum == 0);
return joystick_polls.Num();
}
int Sys_ReturnJoystickInputEvent( const int n, int &action, int &value ) {
if (n >= joystick_polls.Num())
return 0;
action = joystick_polls[n].action;
value = joystick_polls[n].value;
return 1;
}
void Sys_EndJoystickInputEvents() {
joystick_polls.SetNum(0, false);
}
#endif
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