ref: 73fca33b06e2ebb61473d295fdd39f8bbf57e4dd
dir: /qw/in.c/
#include <u.h>
#include <libc.h>
#include <stdio.h>
#include <bio.h>
#include <draw.h>
#include <thread.h>
#include <mouse.h>
#include <keyboard.h>
#include "quakedef.h"
/* vid.c */
extern int resized;
extern Point center;
extern Rectangle grabr;
typedef struct Kev Kev;
enum{
Nbuf = 20
};
struct Kev{
int key;
int down;
};
static Channel *inchan;
static QLock mlck;
cvar_t m_windowed = {"m_windowed", "1", true};
static cvar_t m_filter = {"m_filter", "0", true};
static int mouseon, fixms;
static int oldmwin;
static float olddx, olddy;
static int mΔx, mΔy, mb, oldmb;
void
Sys_SendKeyEvents(void)
{
Kev ev;
int r;
if(oldmwin != (int)m_windowed.value){
oldmwin = (int)m_windowed.value;
IN_Grabm(oldmwin && cls.state == ca_active);
}
while(r = nbrecv(inchan, &ev), r > 0)
Key_Event(ev.key, ev.down);
if(r < 0)
fprint(2, "Sys_SendKeyEvents: %r\n");
}
void
IN_Commands(void)
{
int b, i, k, r;
if(!mouseon)
return;
qlock(&mlck);
b = mb;
qunlock(&mlck);
b = b & 0x19 | (b & 2) << 1 | (b & 4) >> 1;
for(i=0, k=K_MOUSE1; i<5; i++, k++){
if(i == 3)
k = K_MWHEELUP;
r = b & 1<<i;
if(r ^ oldmb & 1<<i)
Key_Event(k, r);
}
oldmb = b & 7;
}
void
IN_Move(usercmd_t *cmd)
{
float dx, dy;
if(!mouseon)
return;
qlock(&mlck);
dx = mΔx;
dy = mΔy;
mΔx = 0;
mΔy = 0;
qunlock(&mlck);
if(m_filter.value){
dx = (dx + olddx) * 0.5;
dy = (dy + olddy) * 0.5;
}
olddx = dx;
olddy = dy;
dx *= sensitivity.value;
dy *= sensitivity.value;
if(in_strafe.state & 1 || lookstrafe.value && in_mlook.state & 1)
cmd->sidemove += m_side.value * dx;
else
cl.viewangles[YAW] -= m_yaw.value * dx;
if(in_mlook.state & 1)
V_StopPitchDrift();
if(in_mlook.state & 1 && ~in_strafe.state & 1){
cl.viewangles[PITCH] += m_pitch.value * dy;
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 * dy;
else
cmd->forwardmove -= m_forward.value * dy;
}
}
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;
case L'§': k = '~'; break;
default:
if(r < 0x80)
k = r;
}
return k;
}
static void
kproc(void *)
{
int n, k, fd;
char buf[256], kdown[128], *s, *p;
Rune r;
Kev ev, evc;
fd = open("/dev/kbd", OREAD);
if(fd < 0)
sysfatal("open /dev/kbd: %r");
memset(buf, 0, sizeof buf);
memset(kdown, 0, sizeof kdown);
evc.key = K_ENTER;
evc.down = true;
for(;;){
if(buf[0] != 0){
n = strlen(buf)+1;
memmove(buf, buf+n, sizeof(buf)-n);
}
if(buf[0] == 0){
if(n = read(fd, buf, sizeof(buf)-1), n <= 0)
break;
buf[n-1] = 0;
buf[n] = 0;
}
switch(buf[0]){
case 'c':
if(send(inchan, &evc) < 0)
threadexits(nil);
default:
continue;
case 'k':
ev.down = true;
s = buf+1;
p = kdown+1;
break;
case 'K':
ev.down = false;
s = kdown+1;
p = buf+1;
break;
}
while(*s != 0){
s += chartorune(&r, s);
if(utfrune(p, r) == nil){
k = runetokey(r);
if(k == 0)
continue;
ev.key = k;
if(send(inchan, &ev) < 0)
threadexits(nil);
if(ev.down)
evc.key = k;
}
}
strcpy(kdown, buf);
}
}
static void
mproc(void *)
{
int b, n, nerr, fd;
char buf[1+5*12];
Point p, o;
fd = open("/dev/mouse", ORDWR);
if(fd < 0)
sysfatal("open /dev/mouse: %r");
nerr = 0;
o = center;
for(;;){
if(n = read(fd, buf, sizeof buf), n != 1+4*12){
if(n < 0 || ++nerr > 10)
break;
fprint(2, "mproc: bad count %d not 49: %r\n", n);
continue;
}
nerr = 0;
switch(*buf){
case 'r':
resized = 1;
/* fall through */
case 'm':
if(!mouseon)
break;
if(fixms){
fixms = 0;
goto res;
}
p.x = atoi(buf+1+0*12);
p.y = atoi(buf+1+1*12);
b = atoi(buf+1+2*12);
qlock(&mlck);
mΔx += p.x - o.x;
mΔy += p.y - o.y;
mb = b;
qunlock(&mlck);
if(!ptinrect(p, grabr)){
res:
fprint(fd, "m%d %d", center.x, center.y);
p = center;
}
o = p;
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){
fd = open("/dev/cursor", ORDWR|OCEXEC);
if(fd < 0){
fprint(2, "IN_Grabm:open: %r\n");
return;
}
write(fd, nocurs, sizeof nocurs);
fixms++;
}else if(fd >= 0){
close(fd);
fd = -1;
}
}
void
IN_Shutdown(void)
{
if(inchan != nil)
chanfree(inchan);
IN_Grabm(0);
}
void
IN_Init(void)
{
Cvar_RegisterVariable(&m_windowed);
Cvar_RegisterVariable(&m_filter);
if(inchan = chancreate(sizeof(Kev), Nbuf), inchan == nil)
sysfatal("chancreate: %r");
if(proccreate(kproc, nil, 8192) < 0)
sysfatal("proccreate kproc: %r");
if(proccreate(mproc, nil, 8192) < 0)
sysfatal("proccreate mproc: %r");
}