jkxr/Projects/Android/jni/OpenJK/shared/sys/sys_event.cpp
Simon 4597b03873 Initial Commit
Opens in Android Studio but haven't even tried to build it yet (it won't.. I know that much!)
2022-09-18 16:37:21 +01:00

150 lines
3.6 KiB
C++

/*
===========================================================================
Copyright (C) 1999 - 2005, Id Software, Inc.
Copyright (C) 2000 - 2013, Raven Software, Inc.
Copyright (C) 2001 - 2013, Activision, Inc.
Copyright (C) 2005 - 2015, ioquake3 contributors
Copyright (C) 2013 - 2015, OpenJK contributors
This file is part of the OpenJK source code.
OpenJK is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
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, see <http://www.gnu.org/licenses/>.
===========================================================================
*/
#include "qcommon/qcommon.h"
#include "sys_local.h"
#include "sys_public.h"
/*
========================================================================
EVENT LOOP
========================================================================
*/
#define MAX_QUED_EVENTS 256
#define MASK_QUED_EVENTS ( MAX_QUED_EVENTS - 1 )
static sysEvent_t eventQue[MAX_QUED_EVENTS] = {};
static sysEvent_t *lastEvent = nullptr;
static uint32_t eventHead = 0, eventTail = 0;
static const char *Sys_EventName( sysEventType_t evType ) {
static const char *evNames[SE_MAX] = {
"SE_NONE",
"SE_KEY",
"SE_CHAR",
"SE_MOUSE",
"SE_JOYSTICK_AXIS",
"SE_CONSOLE"
};
if ( evType >= SE_MAX ) {
return "SE_UNKNOWN";
} else {
return evNames[evType];
}
}
sysEvent_t Sys_GetEvent( void ) {
sysEvent_t ev;
char *s;
// return if we have data
if ( eventHead > eventTail ) {
eventTail++;
return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
}
// check for console commands
s = Sys_ConsoleInput();
if ( s ) {
char *b;
int len;
len = strlen( s ) + 1;
b = (char *)Z_Malloc( len,TAG_EVENT,qfalse );
strcpy( b, s );
Sys_QueEvent( 0, SE_CONSOLE, 0, 0, len, b );
}
// return if we have data
if ( eventHead > eventTail ) {
eventTail++;
return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
}
// create an empty event to return
memset( &ev, 0, sizeof( ev ) );
ev.evTime = Sys_Milliseconds();
return ev;
}
/*
================
Sys_QueEvent
A time of 0 will get the current time
Ptr should either be null, or point to a block of data that can
be freed by the game later.
================
*/
void Sys_QueEvent( int evTime, sysEventType_t evType, int value, int value2, int ptrLength, void *ptr ) {
sysEvent_t *ev;
if ( evTime == 0 ) {
evTime = Sys_Milliseconds();
}
// try to combine all sequential mouse moves in one event
if ( evType == SE_MOUSE && lastEvent && lastEvent->evType == SE_MOUSE ) {
// try to reuse already processed item
if ( eventTail == eventHead ) {
lastEvent->evValue = value;
lastEvent->evValue2 = value2;
eventTail--;
} else {
lastEvent->evValue += value;
lastEvent->evValue2 += value2;
}
lastEvent->evTime = evTime;
return;
}
ev = &eventQue[ eventHead & MASK_QUED_EVENTS ];
if ( eventHead - eventTail >= MAX_QUED_EVENTS ) {
Com_Printf( "Sys_QueEvent(%s,time=%i): overflow\n", Sys_EventName(evType), evTime );
// we are discarding an event, but don't leak memory
if ( ev->evPtr ) {
Z_Free( ev->evPtr );
}
eventTail++;
}
eventHead++;
ev->evTime = evTime;
ev->evType = evType;
ev->evValue = value;
ev->evValue2 = value2;
ev->evPtrLength = ptrLength;
ev->evPtr = ptr;
lastEvent = ev;
}