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#include <sys/stat.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
const char DEFAULT_CONFIG[] =
"# fhvkov - forza horizon overlay (vulkan layer)\n"
"# positions and sizes are fractions of the game window;\n"
"# _x/_y are gauge centers. this file is re-read every second,\n"
"# so you can edit and save while driving.\n"
"port=9999\n"
"units=kmh\n"
"keep=0\n"
"scale=1.0\n"
"# needle motion blur: seconds of smear (try 0.06-0.15), 0 = off\n"
"blur=0.10\n"
"\n"
"tach_x=0.878\n"
"tach_y=0.830\n"
"tach_r=0.130\n"
"flash_needle=1\n"
"# whether to scale max rpm based on rpm reached by car\n"
"autoscale_rpm=1\n"
"# offset from max rpm at which needle starts flashing red\n"
"rpm_off=800.0\n"
"\n"
"show_boost=1\n"
"boost_x=0.775\n"
"boost_y=0.907\n"
"boost_r=0.060\n"
"\n"
"# lamps: abs, tcs (wheel slip) and tcs launch-control flash\n"
"show_abs=1\n"
"show_tcs=0\n"
"# enabling LC shows the \"tcs\" lamp\n"
"show_lc=1\n"
"show_tires=1\n"
"tire_x=0.970\n"
"tire_y=0.710\n"
"tire_sc=1.0\n";
void config_defaults( CONFIG* c ) {
c->port = 9999;
c->units = 0;
c->keep = 0;
c->tach_x = 0.878; c->tach_y = 0.830; c->tach_r = 0.130;
c->scale = 1.0;
c->blur = 0.10;
c->show_boost = 1;
c->boost_x = 0.775; c->boost_y = 0.907; c->boost_r = 0.060;
c->show_abs = 1; c->show_tcs = 1; c->show_lc = 1;
c->show_tires = 1;
c->tire_x = 0.97; c->tire_y = 0.71, c->tire_sc = 1.0;
c->flash_needle = 1;
c->autoscale_rpm = 1;
c->rpm_off = 800.0;
}
void config_resolve_path( CONFIG* c ) {
const char* env = getenv( "FHRPM_CONFIG" );
if( env ) {
snprintf( c->path, sizeof( c->path ), "%s", env );
return;
}
const char* home = getenv( "HOME" );
if( !home )
home = ".";
snprintf( c->path, sizeof( c->path ), "%s/.config/fhvkov/fhvkov.conf", home );
}
void config_write_default( const CONFIG* c ) {
char dir[512];
const char* home = getenv( "HOME" );
if( home ) {
snprintf( dir, sizeof( dir ), "%s/.config", home );
mkdir( dir, 0755 );
snprintf( dir, sizeof( dir ), "%s/.config/fhvkov", home );
mkdir( dir, 0755 );
}
FILE* f = fopen( c->path, "w" );
if( !f )
return;
defer( fclose( f ) );
fwrite( DEFAULT_CONFIG, 1, sizeof( DEFAULT_CONFIG ) - 1, f );
dlog( "fhvkov: wrote default config to %s\n", c->path );
}
void config_parse_line( CONFIG* c, char* key, char* val ) {
if( !strcmp( key, "port" ) ) c->port = atoi( val );
else if( !strcmp( key, "units" ) ) c->units = !strcmp( val, "mph" );
else if( !strcmp( key, "keep" ) ) c->keep = atoi( val );
else if( !strcmp( key, "tach_x" ) ) c->tach_x = atof( val );
else if( !strcmp( key, "tach_y" ) ) c->tach_y = atof( val );
else if( !strcmp( key, "tach_r" ) ) c->tach_r = atof( val );
else if( !strcmp( key, "show_boost" ) ) c->show_boost = atoi( val );
else if( !strcmp( key, "boost_x" ) ) c->boost_x = atof( val );
else if( !strcmp( key, "boost_y" ) ) c->boost_y = atof( val );
else if( !strcmp( key, "boost_r" ) ) c->boost_r = atof( val );
else if( !strcmp( key, "scale" ) ) c->scale = atof( val );
else if( !strcmp( key, "blur" ) ) c->blur = atof( val );
else if( !strcmp( key, "show_abs" ) ) c->show_abs = atoi( val );
else if( !strcmp( key, "show_tcs" ) ) c->show_tcs = atoi( val );
else if( !strcmp( key, "show_lc" ) ) c->show_lc = atoi( val );
else if( !strcmp( key, "show_tires" ) ) c->show_tires = atoi( val );
else if( !strcmp( key, "tire_x" ) ) c->tire_x = atof( val );
else if( !strcmp( key, "tire_y" ) ) c->tire_y = atof( val );
else if( !strcmp( key, "tire_sc" ) ) c->tire_sc = atof( val );
else if( !strcmp( key, "flash_needle" ) ) c->flash_needle = atoi( val );
else if( !strcmp( key, "autoscale_rpm" ) ) c->autoscale_rpm = atoi( val );
else if( !strcmp( key, "rpm_off" ) ) c->rpm_off = atof( val );
}
STAT config_load( CONFIG* c ) {
FILE* f = fopen( c->path, "r" );
if( !f )
return STAT_ERR;
defer( fclose( f ) );
char line[256];
while( fgets( line, sizeof( line ), f ) ) {
char* p = line;
while( *p == ' ' || *p == '\t' )
p++;
if( *p == '#' || *p == '\n' ||* p == 0 )
continue;
char* eq = strchr( p, '=' );
if( !eq )
continue;
*eq = 0;
char* key = p, *val = eq + 1;
char* nl = strchr( val, '\n' );
if( nl )
*nl = 0;
char* e = key + strlen( key );
while( e > key && ( e[-1] == ' ' || e[-1] == '\t' ) )
*--e = 0;
config_parse_line( c, key, val );
}
struct stat st;
if( stat( c->path, &st ) == 0 )
c->mtime = st.st_mtime;
return STAT_OK;
}
void config_init( CONFIG* c ) {
config_defaults( c );
config_resolve_path( c );
if( !OK( config_load( c ) ) ) {
config_write_default( c );
config_load( c );
}
}
U8 config_poll( CONFIG* c ) {
struct stat st;
if( stat( c->path, &st ) != 0 )
return 0;
if( st.st_mtime == c->mtime )
return 0;
CONFIG fresh;
config_defaults( &fresh );
memcpy( fresh.path, c->path, sizeof( fresh.path ) );
if( !OK( config_load( &fresh ) ) )
return 0;
fresh.port = c->port;
*c = fresh;
dlog( "fhvkov: config reloaded\n" );
return 1;
}
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