diff options
author | Mattias Andrée <maandree@kth.se> | 2019-10-07 16:39:46 +0200 |
---|---|---|
committer | Mattias Andrée <maandree@kth.se> | 2019-10-07 16:39:46 +0200 |
commit | 5eb6165d6806f5656802a6f58feea9469dad6141 (patch) | |
tree | 46fc5bc7fa308d73ed722059163098dca7c96c22 /src/cg-rainbow.c | |
parent | Add cg-shallow, minor fixes, and bump year (diff) | |
download | cg-tools-5eb6165d6806f5656802a6f58feea9469dad6141.tar.gz cg-tools-5eb6165d6806f5656802a6f58feea9469dad6141.tar.bz2 cg-tools-5eb6165d6806f5656802a6f58feea9469dad6141.tar.xz |
Reorganise, change license, portable makefile, and reference radharc
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src/cg-rainbow.c')
-rw-r--r-- | src/cg-rainbow.c | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/src/cg-rainbow.c b/src/cg-rainbow.c deleted file mode 100644 index 067785f..0000000 --- a/src/cg-rainbow.c +++ /dev/null @@ -1,279 +0,0 @@ -/** - * cg-tools -- Cooperative gamma-enabled tools - * Copyright (C) 2016, 2018 Mattias Andrée (maandree@kth.se) - * - * 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, either version 3 of the License, or - * (at your option) any later version. - * - * 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 <http://www.gnu.org/licenses/>. - */ -#include "cg-base.h" - -#include <libclut.h> - -#include <errno.h> -#include <math.h> -#include <sched.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> - - - -/** - * The default filter priority for the program - */ -const int64_t default_priority = (int64_t)1 << 60; - -/** - * The default class for the program - */ -char default_class[] = PKGNAME "::cg-rainbow::standard"; - -/** - * Class suffixes - */ -const char* const* class_suffixes = (const char* const[]){NULL}; - - - -/** - * -s: rainbow-frequency in Hz - */ -static char* sflag = NULL; - -/** - * -l: base luminosity - */ -static char* lflag = NULL; - -/** - * The rainbow-frequency multiplied by 3 - */ -double rainbows_per_third_second = 1; - -/** - * The base luminosity - */ -double luminosity = (double)1 / 3; - - - -/** - * Print usage information and exit - */ -void usage(void) -{ - fprintf(stderr, - "Usage: %s [-M method] [-S site] [-c crtc]... [-R rule] [-p priority]" - " [-l luminosity] [-s rainbowhz]\n", - argv0); - exit(1); -} - - -/** - * Handle a command line option - * - * @param opt The option, it is a NUL-terminate two-character - * string starting with either '-' or '+', if the - * argument is not recognised, call `usage`. This - * string will not be "-M", "-S", "-c", "-p", or "-R". - * @param arg The argument associated with `opt`, - * `NULL` there is no next argument, if this - * parameter is `NULL` but needed, call `usage` - * @return 0 if `arg` was not used, - * 1 if `arg` was used, - * -1 on error - */ -int handle_opt(char* opt, char* arg) -{ - if (opt[0] == '-') - switch (opt[1]) - { - case 'l': - if (lflag || !(lflag = arg)) - usage(); - return 1; - case 's': - if (sflag || !(sflag = arg)) - usage(); - return 1; - default: - usage(); - } - else - usage(); - return 0; -} - - -/** - * Parse a non-negative double encoded as a string - * - * @param out Output parameter for the value - * @param str The string - * @return Zero on success, -1 if the string is invalid - */ -static int parse_double(double* restrict out, const char* restrict str) -{ - char* end; - errno = 0; - *out = strtod(str, &end); - if (errno || (*out < 0) || isinf(*out) || isnan(*out) || *end) - return -1; - if (!*str || !strchr("0123456789.", *str)) - return -1; - return 0; -} - - -/** - * This function is called after the last - * call to `handle_opt` - * - * @param argc The number of unparsed arguments - * @param argv `NULL` terminated list of unparsed arguments - * @param prio The argument associated with the "-p" option - * @return Zero on success, -1 on error - */ -int handle_args(int argc, char* argv[], char* prio) -{ - int q = (lflag || sflag); - if ((q > 1) || argc) - usage(); - if (sflag != NULL) - { - if (parse_double(&rainbows_per_third_second, sflag) < 0) - usage(); - rainbows_per_third_second *= 3; - } - if (lflag != NULL) - { - if (parse_double(&luminosity, lflag) < 0) - usage(); - } - return 0; - (void) argv; - (void) prio; -} - - -/** - * Fill a filter - * - * @param filter The filter to fill - * @param red The red brightness - * @param green The green brightness - * @param blue The blue brightness - */ -static void fill_filter(libcoopgamma_filter_t* restrict filter, double red, double green, double blue) -{ - switch (filter->depth) - { -#define X(CONST, MEMBER, MAX, TYPE)\ - case CONST:\ - libclut_start_over(&(filter->ramps.MEMBER), MAX, TYPE, 1, 1, 1);\ - libclut_rgb_brightness(&(filter->ramps.MEMBER), MAX, TYPE, red, green, blue);\ - break; -LIST_DEPTHS -#undef X - default: - abort(); - } -} - - -/** - * Get the current monotonic time as a double - * - * @param now Output parameter for the current time (monotonic) - * @return Zero on success, -1 on error - */ -static int double_time(double* restrict now) -{ -#ifndef CLOCK_MONOTONIC_RAW -# define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC -#endif - struct timespec ts; - if (clock_gettime(CLOCK_MONOTONIC_RAW, &ts) < 0) - return -1; - *now = (double)(ts.tv_nsec); - *now /= 1000000000L; - *now += (double)(ts.tv_sec); - return 0; -} - - -/** - * The main function for the program-specific code - * - * @return 0: Success - * -1: Error, `errno` set - * -2: Error, `cg.error` set - * -3: Error, message already printed - */ -int start(void) -{ - int r; - size_t i, j; - double pal[3]; - double t, starttime; - - for (i = 0; i < filters_n; i++) - crtc_updates[i].filter.lifespan = LIBCOOPGAMMA_UNTIL_DEATH; - - if ((r = make_slaves()) < 0) - return r; - - if ((r = double_time(&starttime)) < 0) - return r; - - for (;;) - { - if ((r = double_time(&t)) < 0) - return r; - t -= starttime; - t *= rainbows_per_third_second; - pal[0] = pal[1] = pal[2] = luminosity; - pal[((long)t) % 3] += 1 - fmod(t, 1); - pal[((long)t + 1) % 3] += fmod(t, 1); - if (pal[0] > 1) pal[0] = 1; - if (pal[1] > 1) pal[1] = 1; - if (pal[2] > 1) pal[2] = 1; - - for (i = 0, r = 1; i < filters_n; i++) - { - if (!(crtc_updates[i].master) || !(crtc_info[crtc_updates[i].crtc].supported)) - continue; - fill_filter(&(crtc_updates[i].filter), pal[0], pal[1], pal[2]); - r = update_filter(i, 0); - if ((r == -2) || ((r == -1) && (errno != EAGAIN))) - return r; - if (crtc_updates[i].slaves != NULL) - for (j = 0; crtc_updates[i].slaves[j] != 0; j++) - { - r = update_filter(crtc_updates[i].slaves[j], 0); - if ((r == -2) || ((r == -1) && (errno != EAGAIN))) - return r; - } - } - - while (r != 1) - if ((r = synchronise(-1)) < 0) - return r; - - sched_yield(); - } -} - |