From b666cb3b757b408c9515b4749c7e8a05971ec451 Mon Sep 17 00:00:00 2001 From: axtloss Date: Tue, 28 May 2024 13:01:13 +0200 Subject: add files --- COPYING | 675 ++++++++++++++++++++++++++++++++++++++++++++++++++ README.md | 3 + meson.build | 84 +++++++ src/main.c | 71 ++++++ src/meson.build | 15 ++ src/sun.c | 156 ++++++++++++ src/sun.h | 2 + xen.nya.autodark.json | 33 +++ 8 files changed, 1039 insertions(+) create mode 100644 COPYING create mode 100644 README.md create mode 100644 meson.build create mode 100644 src/main.c create mode 100644 src/meson.build create mode 100644 src/sun.c create mode 100644 src/sun.h create mode 100644 xen.nya.autodark.json diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..c94d07f --- /dev/null +++ b/COPYING @@ -0,0 +1,675 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. + diff --git a/README.md b/README.md new file mode 100644 index 0000000..bc2ee88 --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# autodarkmode + +A description of this project. diff --git a/meson.build b/meson.build new file mode 100644 index 0000000..ae62c25 --- /dev/null +++ b/meson.build @@ -0,0 +1,84 @@ +project('autodarkmode', 'c', + version: '0.1.0', + meson_version: '>= 0.62.0', + default_options: [ 'warning_level=2', 'werror=false', 'c_std=gnu11', ], +) + +cc = meson.get_compiler('c') + +config_h = configuration_data() +config_h.set_quoted('PACKAGE_VERSION', meson.project_version()) +configure_file(output: 'config.h', configuration: config_h) +add_project_arguments(['-I' + meson.project_build_root()], language: 'c') + +project_c_args = ['-lm',] +test_c_args = [ + '-Wcast-align', + '-Wdeclaration-after-statement', + '-Werror=address', + '-Werror=array-bounds', + '-Werror=empty-body', + '-Werror=implicit', + '-Werror=implicit-function-declaration', + '-Werror=incompatible-pointer-types', + '-Werror=init-self', + '-Werror=int-conversion', + '-Werror=int-to-pointer-cast', + '-Werror=main', + '-Werror=misleading-indentation', + '-Werror=missing-braces', + '-Werror=missing-include-dirs', + '-Werror=nonnull', + '-Werror=overflow', + '-Werror=parenthesis', + '-Werror=pointer-arith', + '-Werror=pointer-to-int-cast', + '-Werror=redundant-decls', + '-Werror=return-type', + '-Werror=sequence-point', + '-Werror=shadow', + '-Werror=strict-prototypes', + '-Werror=trigraphs', + '-Werror=undef', + '-Werror=write-strings', + '-Wformat-nonliteral', + '-Wignored-qualifiers', + '-Wimplicit-function-declaration', + '-Wlogical-op', + '-Wmissing-declarations', + '-Wmissing-format-attribute', + '-Wmissing-include-dirs', + '-Wmissing-noreturn', + '-Wnested-externs', + '-Wno-cast-function-type', + '-Wno-dangling-pointer', + '-Wno-missing-field-initializers', + '-Wno-sign-compare', + '-Wno-unused-parameter', + '-Wold-style-definition', + '-Wpointer-arith', + '-Wredundant-decls', + '-Wstrict-prototypes', + '-Wswitch-default', + '-Wswitch-enum', + '-Wundef', + '-Wuninitialized', + '-Wunused', + '-fno-strict-aliasing', + '-lm', + ['-Werror=format-security', '-Werror=format=2'], +] +if get_option('buildtype') != 'plain' + test_c_args += '-fstack-protector-strong' +endif +foreach arg: test_c_args + if cc.has_multi_arguments(arg) + project_c_args += arg + endif +endforeach +add_project_arguments(project_c_args, language: 'c') +add_project_arguments('-lm', language: 'c') +# add_project_arguments('-fsanitize=undefined,address', language: 'c') + +subdir('src') + diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..34f528a --- /dev/null +++ b/src/main.c @@ -0,0 +1,71 @@ +/* main.c + * + * Copyright 2024 Unknown + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 3 of the License only. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +#include "config.h" +#include "sun.h" +#include + +#include +#include + +gint +main (gint argc, + gchar *argv[]) +{ + g_autoptr(GOptionContext) context = NULL; + g_autoptr(GError) error = NULL; + gboolean version = FALSE; + GOptionEntry main_entries[] = { + { "version", 0, 0, G_OPTION_ARG_NONE, &version, "Show program version" }, + { NULL } + }; + + context = g_option_context_new ("- my command line tool"); + g_option_context_add_main_entries (context, main_entries, NULL); + + if (!g_option_context_parse (context, &argc, &argv, &error)) + { + g_printerr ("%s\n", error->message); + return EXIT_FAILURE; + } + + if (version) + { + g_printerr ("%s\n", PACKAGE_VERSION); + return EXIT_SUCCESS; + } + + int year = 2024, month = 5, day = 28; + double latitude = 51.01; + double longitude = 7.563; + + float localT = calculateSunrise(year, month, day, latitude, longitude, 2); + double hours; + float minutes = modf(localT,&hours)*60; + g_print("Sunrise: %.0f:%.0f\n",hours,minutes); + + float sunsetT = calculateSunset(year, month, day, latitude, longitude, 2); + double sunHours; + float sunMinutes = modf(sunsetT,&sunHours)*60; + g_print("Sunset: %.0f:%.0f\n",sunHours,sunMinutes); + + return 0; + + return EXIT_SUCCESS; +} diff --git a/src/meson.build b/src/meson.build new file mode 100644 index 0000000..4848423 --- /dev/null +++ b/src/meson.build @@ -0,0 +1,15 @@ +autodarkmode_sources = [ + 'main.c', + 'sun.c' +] + +autodarkmode_deps = [ + dependency('glib-2.0'), +] + +executable('autodarkmode', autodarkmode_sources, + dependencies: autodarkmode_deps, + install: true, + link_args: '-lm', +) + diff --git a/src/sun.c b/src/sun.c new file mode 100644 index 0000000..f08dfd8 --- /dev/null +++ b/src/sun.c @@ -0,0 +1,156 @@ +#include +#include +#define PI 3.1415926 +#define ZENITH -.83 + +float calculateSunrise(int year,int month,int day,float lat, float lng,int localOffset) { + /* + localOffset will be <0 for western hemisphere and >0 for eastern hemisphere + daylightSavings should be 1 if it is in effect during the summer otherwise it should be 0 + */ + //1. first calculate the day of the year + float N1 = floor(275 * month / 9); + float N2 = floor((month + 9) / 12); + float N3 = (1 + floor((year - 4 * floor(year / 4) + 2) / 3)); + float N = N1 - (N2 * N3) + day - 30; + + //2. convert the longitude to hour value and calculate an approximate time + float lngHour = lng / 15.0; + float t = N + ((6 - lngHour) / 24); + + //3. calculate the Sun's mean anomaly + float M = (0.9856 * t) - 3.289; + + //4. calculate the Sun's true longitude + float L = fmod(M + (1.916 * sin((PI/180)*M)) + (0.020 * sin(2 *(PI/180) * M)) + 282.634,360.0); + + if ( L < 0 ) + L = L+360; + else if ( L > 360) + L = L-360; + + //5a. calculate the Sun's right ascension + float RA = fmod(180/PI*atan(0.91764 * tan((PI/180)*L)),360.0); + + if ( RA < 0 ) + RA = RA+360; + else if ( RA > 360) + RA = RA-360; + + //5b. right ascension value needs to be in the same quadrant as L + float Lquadrant = floor( L/90) * 90; + float RAquadrant = floor(RA/90) * 90; + RA = RA + (Lquadrant - RAquadrant); + + //5c. right ascension value needs to be converted into hours + RA = RA / 15; + + //6. calculate the Sun's declination + float sinDec = 0.39782 * sin((PI/180)*L); + float cosDec = cos(asin(sinDec)); + + //7a. calculate the Sun's local hour angle + float cosH = (sin((PI/180)*ZENITH) - (sinDec * sin((PI/180)*lat))) / (cosDec * cos((PI/180)*lat)); + + if (cosH > 1) + g_print("Never rising\n"); + else if (cosH < -1) + g_print("Never setting\n"); + + //7b. finish calculating H and convert into hours + float H = 360 - (180/PI)*acos(cosH); // if if rising time is desired: + + H = H / 15; + + //8. calculate local mean time of rising/setting + float T = H + RA - (0.06571 * t) - 6.622; + + //9. adjust back to UTC + float UT = fmod(T - lngHour,24.0); + + if ( UT < 0 ) + UT = UT+24; + else if (UT > 24) + UT = UT-24; + + //10. convert UT value to local time zone of latitude/longitude + return UT + localOffset; + + } + +float calculateSunset(int year,int month,int day,float lat, float lng,int localOffset) { + /* + localOffset will be <0 for western hemisphere and >0 for eastern hemisphere + daylightSavings should be 1 if it is in effect during the summer otherwise it should be 0 + */ + //1. first calculate the day of the year + float N1 = floor(275 * month / 9); + float N2 = floor((month + 9) / 12); + float N3 = (1 + floor((year - 4 * floor(year / 4) + 2) / 3)); + float N = N1 - (N2 * N3) + day - 30; + + //2. convert the longitude to hour value and calculate an approximate time + float lngHour = lng / 15.0; + + float t = N + ((18 - lngHour) / 24); //if setting time is desired: + + //3. calculate the Sun's mean anomaly + float M = (0.9856 * t) - 3.289; + + //4. calculate the Sun's true longitude + float L = fmod(M + (1.916 * sin((PI/180)*M)) + (0.020 * sin(2 *(PI/180) * M)) + 282.634,360.0); + + if ( L < 0 ) + L = L+360; + else if ( L > 360) + L = L-360; + + //5a. calculate the Sun's right ascension + float RA = fmod(180/PI*atan(0.91764 * tan((PI/180)*L)),360.0); + + if ( RA < 0 ) + RA = RA+360; + else if ( RA > 360) + RA = RA-360; + + //5b. right ascension value needs to be in the same quadrant as L + float Lquadrant = floor( L/90) * 90; + float RAquadrant = floor(RA/90) * 90; + RA = RA + (Lquadrant - RAquadrant); + + //5c. right ascension value needs to be converted into hours + RA = RA / 15; + + //6. calculate the Sun's declination + float sinDec = 0.39782 * sin((PI/180)*L); + float cosDec = cos(asin(sinDec)); + + //7a. calculate the Sun's local hour angle + float cosH = (sin((PI/180)*ZENITH) - (sinDec * sin((PI/180)*lat))) / (cosDec * cos((PI/180)*lat)); + + if (cosH > 1) + g_print("Never rising\n"); + else if (cosH < -1) + g_print("Never setting\n"); + + + //7b. finish calculating H and convert into hours + + float H = (180/PI)*acos(cosH); // if setting time is desired: + H = H / 15; + + //8. calculate local mean time of rising/setting + float T = H + RA - (0.06571 * t) - 6.622; + + //9. adjust back to UTC + float UT = fmod(T - lngHour,24.0); + + if ( UT < 0 ) + UT = UT+24; + else if (UT > 24) + UT = UT-24; + + //10. convert UT value to local time zone of latitude/longitude + return UT + localOffset; + +} diff --git a/src/sun.h b/src/sun.h new file mode 100644 index 0000000..0eeb187 --- /dev/null +++ b/src/sun.h @@ -0,0 +1,2 @@ +float calculateSunrise(int year,int month,int day,float lat, float lng,int localOffset); +float calculateSunset(int year,int month,int day,float lat, float lng,int localOffset); diff --git a/xen.nya.autodark.json b/xen.nya.autodark.json new file mode 100644 index 0000000..1ef1a21 --- /dev/null +++ b/xen.nya.autodark.json @@ -0,0 +1,33 @@ +{ + "id" : "xen.nya.autodark", + "runtime" : "org.freedesktop.Platform", + "runtime-version" : "23.08", + "sdk" : "org.freedesktop.Sdk", + "command" : "autodarkmode", + "finish-args" : [ + ], + "cleanup" : [ + "/include", + "/lib/pkgconfig", + "/man", + "/share/doc", + "/share/gtk-doc", + "/share/man", + "/share/pkgconfig", + "*.la", + "*.a" + ], + "modules" : [ + { + "name" : "autodarkmode", + "builddir" : true, + "buildsystem" : "meson", + "sources" : [ + { + "type" : "git", + "url" : "file:///home/xen/Projects" + } + ] + } + ] +} -- cgit v1.2.3