ref: 928de2ce5c6140c19c348ad782bfbe5fa6e35fc4
dir: /in.c/
#include <u.h>
#include <libc.h>
#include <stdio.h>
#include <draw.h>
#include <thread.h>
#include <mouse.h>
#include <keyboard.h>
#include "quakedef.h"
/* vid.c */
extern int resized;
extern Point center;
typedef struct Kev Kev;
enum{
Nbuf = 24
};
struct Kev{
int key;
int down;
};
static Channel *kchan;
static cvar_t m_windowed = {"m_windowed", "0", true};
static cvar_t m_filter = {"m_filter", "0", true};
static int mouseon;
static int oldmwin;
static float mx;
static float my;
static float oldmx;
static float oldmy;
static int mb;
static int oldmb;
static int pfd[2];
char *
Sys_ConsoleInput(void)
{
char buf[256];
if(cls.state == ca_dedicated){
if(flen(pfd[1]) < 1) /* only poll for input */
return nil;
if(read(pfd[1], buf, sizeof buf) < 0)
sysfatal("Sys_ConsoleInput:read: %r");
return buf;
}
return nil;
}
void
Sys_SendKeyEvents(void)
{
Kev ev;
int r;
if(kchan == nil)
return;
if(oldmwin != (int)m_windowed.value){
oldmwin = (int)m_windowed.value;
IN_Grabm(oldmwin);
}
while((r = nbrecv(kchan, &ev)) > 0)
Key_Event(ev.key, ev.down);
if(r < 0)
fprint(2, "Sys_SendKeyEvents:nbrecv: %r\n");
}
void
IN_Commands(void)
{
int i, r;
if(!mouseon)
return;
for(i=0; i<3; i++){
r = mb & 1<<i;
if(r ^ oldmb & 1<<i)
Key_Event(K_MOUSE1+i, r);
}
oldmb = mb;
}
void
IN_Move(usercmd_t *cmd)
{
if(!mouseon)
return;
if(m_filter.value){
mx = (mx + oldmx) * 0.5;
my = (my + oldmy) * 0.5;
}
oldmx = mx;
oldmy = my;
mx *= sensitivity.value;
my *= sensitivity.value;
if(in_strafe.state & 1 || lookstrafe.value && in_mlook.state & 1)
cmd->sidemove += m_side.value * mx;
else
cl.viewangles[YAW] -= m_yaw.value * mx;
if(in_mlook.state & 1)
V_StopPitchDrift();
if(in_mlook.state & 1 && ~in_strafe.state & 1){
cl.viewangles[PITCH] += m_pitch.value * my;
if(cl.viewangles[PITCH] > 80)
cl.viewangles[PITCH] = 80;
if(cl.viewangles[PITCH] < -70)
cl.viewangles[PITCH] = -70;
}else{
if(in_strafe.state & 1 && noclip_anglehack)
cmd->upmove -= m_forward.value * my;
else
cmd->forwardmove -= m_forward.value * my;
}
mx = my = 0.0;
}
static int
runetokey(Rune r)
{
int k = 0;
switch(r){
case Kpgup: k = K_PGUP; break;
case Kpgdown: k = K_PGDN; break;
case Khome: k = K_HOME; break;
case Kend: k = K_END; break;
case Kleft: k = K_LEFTARROW; break;
case Kright: k = K_RIGHTARROW; break;
case Kdown: k = K_DOWNARROW; break;
case Kup: k = K_UPARROW; break;
case Kesc: k = K_ESCAPE; break;
case '\n': k = K_ENTER; break;
case '\t': k = K_TAB; break;
case KF|1: k = K_F1; break;
case KF|2: k = K_F2; break;
case KF|3: k = K_F3; break;
case KF|4: k = K_F4; break;
case KF|5: k = K_F5; break;
case KF|6: k = K_F6; break;
case KF|7: k = K_F7; break;
case KF|8: k = K_F8; break;
case KF|9: k = K_F9; break;
case KF|10: k = K_F10; break;
case KF|11: k = K_F11; break;
case KF|12: k = K_F12; break;
case Kbs: k = K_BACKSPACE; break;
case Kdel: k = K_DEL; break;
case Kbreak: k = K_PAUSE; break;
case Kshift: k = K_SHIFT; break;
case Kctl: k = K_CTRL; break;
case Kalt:
case Kaltgr: k = K_ALT; break;
case Kins: k = K_INS; break;
default:
if(r < 0x80)
k = r;
}
return k;
}
static void
kproc(void *)
{
int n, k, fd;
char buf[128], kdown[128], *s;
Rune r;
Kev ev;
threadsetgrp(THin);
kdown[1] = kdown[0] = 0;
if((fd = open("/dev/kbd", OREAD)) < 0)
sysfatal("open /dev/kbd: %r");
while((n = read(fd, buf, sizeof buf)) > 0){
buf[n-1] = 0;
switch(*buf){
case 'c':
default:
continue;
case 'k':
s = buf+1;
while(*s){
s += chartorune(&r, s);
if(utfrune(kdown+1, r) == nil){
if(k = runetokey(r)){
ev.key = k;
ev.down = true;
if(nbsend(kchan, &ev) < 0)
fprint(2, "kproc:nbsend: %r\n");
}
}
}
break;
case 'K':
s = kdown+1;
while(*s){
s += chartorune(&r, s);
if(utfrune(buf+1, r) == nil){
if(k = runetokey(r)){
ev.key = k;
ev.down = false;
if(nbsend(kchan, &ev) < 0)
fprint(2, "kproc:nbsend: %r\n");
}
}
}
break;
}
strcpy(kdown, buf);
}
close(fd);
}
static void
mproc(void *)
{
int b, n, nerr, fd;
char buf[1+5*12];
float x, y;
threadsetgrp(THin);
if((fd = open("/dev/mouse", ORDWR)) < 0)
sysfatal("open /dev/mouse: %r");
nerr = 0;
for(;;){
if((n = read(fd, buf, sizeof buf)) != 1+4*12){
fprint(2, "mproc:read: bad count %d not 49: %r\n", n);
sleep(1); /* why */
if(n < 0 || ++nerr > 10)
break;
continue;
}
nerr = 0;
switch(*buf){
case 'r':
resized = 1;
/* fall through */
case 'm':
if(!mouseon)
break;
/* FIXME: this sucks: mouse movement is much smoother
* and cursor rarely escapes the window, at the expense
* of much more cpu and devmouse use */
x = atoi(buf+1+0*12) - center.x;
y = atoi(buf+1+1*12) - center.y;
b = atoi(buf+1+2*12);
mx += x;
my += y;
if(x != 0.0 || y != 0.0)
fprint(fd, "m%d %d", center.x, center.y);
mb = b&1 | (b&2)<<1 | (b&4)>>1;
break;
}
}
close(fd);
}
static void
iproc(void *)
{
int n;
char s[256];
threadsetgrp(THin);
for(;;){
if((n = read(0, s, sizeof s)) <= 0)
break;
s[n-1] = 0;
if((write(pfd[0], s, n)) != n)
break;
}
}
void
IN_Grabm(int on)
{
static char nocurs[2*4+2*2*16];
static int fd = -1;
if(mouseon == on)
return;
if(mouseon = on && m_windowed.value){
if((fd = open("/dev/cursor", ORDWR|OCEXEC)) < 0){
fprint(2, "IN_Grabm:open: %r\n");
return;
}
write(fd, nocurs, sizeof nocurs);
}else if(fd >= 0){
close(fd);
fd = -1;
}
}
void
IN_Shutdown(void)
{
IN_Grabm(0);
threadintgrp(THin);
close(pfd[0]);
close(pfd[1]);
if(kchan != nil){
chanfree(kchan);
kchan = nil;
}
}
void
IN_Init(void)
{
if(cls.state == ca_dedicated){
if(pipe(pfd) < 0)
sysfatal("iproc:pipe: %r");
if(proccreate(iproc, nil, 8192) < 0)
sysfatal("proccreate iproc: %r");
return;
}
Cvar_RegisterVariable(&m_windowed);
Cvar_RegisterVariable(&m_filter);
if((kchan = chancreate(sizeof(Kev), Nbuf)) == nil)
sysfatal("chancreate kchan: %r");
if(proccreate(kproc, nil, 8192) < 0)
sysfatal("proccreate kproc: %r");
if(COM_CheckParm("-nomouse"))
return;
if(proccreate(mproc, nil, 8192) < 0)
sysfatal("proccreate mproc: %r");
mx = my = 0.0;
}