diff options
Diffstat (limited to 'src/config.cpp')
| -rw-r--r-- | src/config.cpp | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/config.cpp b/src/config.cpp new file mode 100644 index 0000000..22ea4aa --- /dev/null +++ b/src/config.cpp @@ -0,0 +1,180 @@ +#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; +} |