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basic-hud.c
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basic-hud.c
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/*
* SPDX-FileCopyrightText: 2021 Samuel Cuella <samuel.cuella@gmail.com>
*
* This file is part of SoFIS - an open source EFIS
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "airspeed-indicator.h"
#include "alt-group.h"
#include "attitude-indicator.h"
#include "base-gauge.h"
#include "basic-hud.h"
#include "misc.h"
#include "compass-gauge.h"
#include "roll-slip-gauge.h"
#include "sfv-gauge.h"
#include "tape-gauge.h"
static BaseGaugeOps basic_hud_ops = {
.render = (RenderFunc)NULL,
.update_state = (StateUpdateFunc)NULL,
.dispose = (DisposeFunc)NULL
};
BasicHud *basic_hud_new(void)
{
BasicHud *self;
self = calloc(1, sizeof(BasicHud));
if(self){
if(!basic_hud_init(self)){
return base_gauge_free(BASE_GAUGE(self));
}
}
return self;
}
BasicHud *basic_hud_init(BasicHud *self)
{
base_gauge_init(
BASE_GAUGE(self),
&basic_hud_ops,
640, /*Fixed for now, should be made dynamic and set through params*/
480
);
self->attitude = attitude_indicator_new(640, 480);
base_gauge_add_child(BASE_GAUGE(self),
BASE_GAUGE(self->attitude),
0, 0
);
self->altgroup = alt_group_new();
self->altgroup->altimeter->src = ALT_SRC_GPS;
base_gauge_add_child(BASE_GAUGE(self),
BASE_GAUGE(self->altgroup),
460, 53
);
self->airspeed = airspeed_indicator_new(50,60,85,155,200);
base_gauge_add_child(BASE_GAUGE(self),
BASE_GAUGE(self->airspeed),
96, 72
);
self->compass = compass_gauge_new();
base_gauge_add_child(BASE_GAUGE(self),
BASE_GAUGE(self->compass),
640/2 - base_gauge_w(BASE_GAUGE(self->compass))/2,
(480-1) - base_gauge_h(BASE_GAUGE(self->compass))
);
self->locations[ALT_GROUP] = (SDL_Rect){460,53,0,0};
self->locations[SPEED] = (SDL_Rect){96,72,0,0};
self->locations[COMPASS] = (SDL_Rect){
.x = 640/2 - base_gauge_w(BASE_GAUGE(self->compass))/2,
.y = (480-1) - base_gauge_h(BASE_GAUGE(self->compass)),
.w = base_gauge_w(BASE_GAUGE(self->compass)),
.h = base_gauge_h(BASE_GAUGE(self->compass))
};
return self;
}
void basic_hud_set(BasicHud *self, int nvalues, ...)
{
va_list args;
va_start(args, nvalues);
basic_hud_set_values(self, nvalues, args);
va_end(args);
}
void basic_hud_set_values(BasicHud *self, int nvalues, va_list ap)
{
HudValue hv;
double val;
for(int i = 0; i < nvalues; i++){
hv = va_arg(ap, HudValue);
val = va_arg(ap, double);
switch(hv){
case ALTITUDE:
alt_group_set_altitude(self->altgroup, val);
break;
case VERTICAL_SPEED:
alt_group_set_vertical_speed(self->altgroup, val);
break;
case AIRSPEED:
airspeed_indicator_set_value(self->airspeed, val);
break;
case PITCH:
attitude_indicator_set_pitch(self->attitude, val, true);
break;
case ROLL:
attitude_indicator_set_roll(self->attitude, val, true);
break;
case SLIP:
roll_slip_gauge_set_slip(self->attitude->rollslip, val, true);
break;
case HEADING:
compass_gauge_set_value(self->compass, val, true);
attitude_indicator_set_heading(self->attitude, val);
break;
case HUD_VALUE_MAX: /*Fall through*/
default:
break;
}
}
}
float basic_hud_get(BasicHud *self, HudValue hv)
{
switch(hv){
case ALTITUDE:
return tape_gauge_get_value(self->altgroup->altimeter->tape);
break;
case VERTICAL_SPEED:
return sfv_gauge_get_value(SFV_GAUGE(self->altgroup->vsi));
break;
case AIRSPEED:
return tape_gauge_get_value(self->airspeed->tape);
break;
case PITCH:
return self->attitude->pitch; /*will return the frame's value*/
break;
case ROLL:
return sfv_gauge_get_value(SFV_GAUGE(self->attitude->rollslip));
break;
case HEADING:
return sfv_gauge_get_value(SFV_GAUGE(self->compass));
break;
case SLIP:
return self->attitude->rollslip->slip;
break;
case HUD_VALUE_MAX: /*Fall through*/
default:
break;
}
return NAN;
}
void basic_hud_attitude_changed(BasicHud *self, AttitudeData *newv)
{
attitude_indicator_set_pitch(self->attitude, newv->pitch, true);
attitude_indicator_set_roll(self->attitude, newv->roll, true);
compass_gauge_set_value(self->compass, newv->heading, true);
attitude_indicator_set_heading(self->attitude, newv->heading);
}
void basic_hud_dynamics_changed(BasicHud *self, DynamicsData *newv)
{
// printf("called with airpseed: %f, vertical speed: %f\n", newv->airspeed, newv->vertical_speed*60);
airspeed_indicator_set_value(self->airspeed, newv->airspeed);
/* Convert fps to fpm
* TODO: Document and make units consistent
* */
alt_group_set_vertical_speed(self->altgroup, newv->vertical_speed * 60);
roll_slip_gauge_set_slip(self->attitude->rollslip, newv->slip_rad * 180.0/M_PI, true);
}
void basic_hud_location_changed(BasicHud *self, LocationData *newv)
{
alt_group_set_altitude(self->altgroup, newv->altitude);
}