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-rw-r--r--src/cg-gamma.c541
1 files changed, 0 insertions, 541 deletions
diff --git a/src/cg-gamma.c b/src/cg-gamma.c
deleted file mode 100644
index 1d24d07..0000000
--- a/src/cg-gamma.c
+++ /dev/null
@@ -1,541 +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 <sys/stat.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-
-
-/**
- * The default filter priority for the program
- */
-const int64_t default_priority = 0;
-
-/**
- * The default class for the program
- */
-char default_class[] = PKGNAME "::cg-gamma::standard";
-
-/**
- * Class suffixes
- */
-const char* const* class_suffixes = (const char* const[]){NULL};
-
-
-
-/**
- * -d: keep process alive and remove filter on death
- */
-static int dflag = 0;
-
-/**
- * -x: remove filter rather than adding it
- */
-static int xflag = 0;
-
-/**
- * -f: gamma listing file
- */
-static char* fflag = NULL;
-
-/**
- * The gamma of the red channel
- */
-static double rgamma = 1;
-
-/**
- * The gamma of the green channel
- */
-static double ggamma = 1;
-
-/**
- * The gamma of the blue channel
- */
-static double bgamma = 1;
-
-/**
- * `NULL`-terminated list of output
- * names listed in the configuration file
- */
-static char** names = NULL;
-
-/**
- * The gamma of the red channel on monitor
- * with same index in `names`
- */
-static double* rgammas = NULL;
-
-/**
- * The gamma of the green channel on monitor
- * with same index in `names`
- */
-static double* ggammas = NULL;
-
-/**
- * The gamma of the blue channel on monitor
- * with same index in `names`
- */
-static double* bgammas = NULL;
-
-
-
-/**
- * Print usage information and exit
- */
-void usage(void)
-{
- fprintf(stderr,
- "Usage: %s [-M method] [-S site] [-c crtc]... [-R rule] "
- "(-x | [-p priority] [-d] [-f file | all | red green blue])\n",
- argv0);
- exit(1);
-}
-
-
-/**
- * Perform cleanup so valgrind output is clean
- *
- * @param ret The value to return
- * @return `ret` is returned as is
- */
-static int cleanup(int ret)
-{
- int saved_errno = errno;
- if (names != NULL)
- {
- char** p = names;
- while (*p)
- free(*p++);
- }
- free(names);
- free(rgammas);
- free(ggammas);
- free(bgammas);
- errno = saved_errno;
- return ret;
-}
-
-
-/**
- * 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 'd':
- if (dflag || xflag)
- usage();
- dflag = 1;
- break;
- case 'x':
- if (xflag || dflag)
- usage();
- xflag = 1;
- break;
- case 'f':
- if (fflag || !(fflag = arg))
- usage();
- return 1;
- default:
- usage();
- }
- return 0;
-}
-
-
-/**
- * Get the pathname of a configuration file
- *
- * @param confname The filename (excluding directory) of the configuration file
- * @return The full pathname of the configuration file, `NULL` on error
- */
-static char* get_conf_file(const char* restrict confname)
-{
- struct passwd* pw;
- char* path;
-
- pw = getpwuid(getuid());
- if ((pw == NULL) || (pw->pw_dir == NULL))
- return NULL;
-
- path = malloc(strlen(pw->pw_dir) + strlen(confname) + sizeof("/.config/"));
- if (path == NULL)
- return NULL;
-
- sprintf(path, "%s/.config/%s", pw->pw_dir, confname);
-
- if (access(path, F_OK) < 0)
- sprintf(path, "/etc/%s", confname);
-
- return path;
-}
-
-
-/**
- * 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;
-}
-
-
-/**
- * Parse gamma configuration file
- *
- * @param pathname The pathname of the file
- * @return Zero on success, -1 on error
- */
-static int parse_gamma_file(const char* restrict pathname)
-{
- int fd, saved_errno;
- char* line = NULL;
- size_t size = 0, lineno = 0, ptr = 0, alloc = 0;
- ssize_t n;
- FILE* f = NULL;
- char* p;
- char* q;
- char* r;
- char* g;
- char* b;
-
- fd = open(pathname, O_RDONLY);
- if (fd == -1)
- return -1;
-
- f = fdopen(fd, "rb");
- if (f == NULL)
- goto fail;
-
- while (n = getline(&line, &size, f), n >= 0)
- {
- lineno += 1;
-
- if ((n > 0) && (line[n - 1] == '\n'))
- line[n - 1] = '\0';
- p = line;
- while ((*p == ' ') || (*p == '\t')) p++;
- if ((!*p) || (*p == '#'))
- continue;
-
- r = strpbrk(line, " \t");
- if (r == NULL)
- goto bad;
- while (r[1] == ' ' || r[1] == '\t') r++;
- g = strpbrk(r + 1, " \t");
- if (g == NULL)
- goto bad;
- while (g[1] == ' ' || g[1] == '\t') g++;
- b = strpbrk(g + 1, " \t");
- if (b == NULL)
- goto bad;
- while (b[1] == ' ' || b[1] == '\t') b++;
-
- for (;;)
- {
- q = strpbrk(b + 1, " \t");
- if (q == NULL)
- break;
- while (q[1] == ' ' || q[1] == '\t') q++;
- if (!*q)
- break;
- r = g, g = b, b = q;
- }
-
- *r++ = '\0';
- *g++ = '\0';
- *b++ = '\0';
-
- q = strpbrk(r, " \t");
- if (q != NULL)
- *q = '\0';
- q = strpbrk(g, " \t");
- if (q != NULL)
- *q = '\0';
- q = strpbrk(b, " \t");
- if (q != NULL)
- *q = '\0';
-
- q = strchr(p, '\0');
- while ((q != p) && ((q[-1] == ' ') || (q[-1] == '\t')))
- q--;
- *q = '\0';
-
- if (ptr == alloc)
- {
- void* new;
- size_t new_size = alloc ? (alloc << 1) : 4;
-
- new = realloc(rgammas, new_size * sizeof(*rgammas));
- if (new == NULL)
- goto fail;
- rgammas = new;
-
- new = realloc(ggammas, new_size * sizeof(*ggammas));
- if (new == NULL)
- goto fail;
- ggammas = new;
-
- new = realloc(bgammas, new_size * sizeof(*bgammas));
- if (new == NULL)
- goto fail;
- bgammas = new;
-
- new = realloc(names, (new_size + 1) * sizeof(*names));
- if (new == NULL)
- goto fail;
- names = new;
- memset(names + alloc, 0, (new_size + 1 - alloc) * sizeof(*names));
-
- alloc = new_size;
- }
-
- if ((parse_double(rgammas + ptr, r) < 0) ||
- (parse_double(ggammas + ptr, g) < 0) ||
- (parse_double(bgammas + ptr, b) < 0))
- goto bad;
- names[ptr] = malloc(strlen(p) + 1);
- if (names[ptr] == NULL)
- goto fail;
- strcpy(names[ptr], p);
- ptr++;
-
- continue;
- bad:
- fprintf(stderr, "%s: ignoring malformatted line in %s: %zu\n", argv0, pathname, lineno);
- }
-
- if (fclose(f) < 0)
- {
- f = NULL;
- goto fail;
- }
- close(fd);
- free(line);
- return 0;
- fail:
- saved_errno = errno;
- free(line);
- if (f != NULL)
- fclose(f);
- if (fd >= 0)
- close(fd);
- errno = saved_errno;
- return -1;
-}
-
-
-/**
- * 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 free_fflag = 0, saved_errno;
- int q = xflag + dflag;
- if ((q > 1) || (fflag && argc) || (xflag && ((fflag != NULL) || (argc > 0) || (prio != NULL))))
- usage();
- if (argc == 1)
- {
- if (parse_double(&rgamma, argv[0]) < 0)
- usage();
- bgamma = ggamma = rgamma;
- }
- else if (argc == 3)
- {
- if (parse_double(&rgamma, argv[0]) < 0)
- usage();
- if (parse_double(&ggamma, argv[1]) < 0)
- usage();
- if (parse_double(&bgamma, argv[2]) < 0)
- usage();
- }
- else if (argc)
- usage();
- if (!argc && !fflag && !xflag)
- {
- fflag = get_conf_file("gamma");
- if (fflag == NULL)
- return -1;
- free_fflag = 1;
- }
- if (fflag)
- if (parse_gamma_file(fflag) < 0)
- goto fail;
- if (free_fflag)
- free(fflag), fflag = NULL;
- return 0;
- fail:
- saved_errno = errno;
- if (free_fflag)
- free(fflag), fflag = NULL;
- errno = saved_errno;
- return cleanup(-1);
-}
-
-
-/**
- * Fill a filter
- *
- * @param filter The filter to fill
- * @param r The red gamma
- * @param g The green gamma
- * @param b The blue gamma
- */
-static void fill_filter(libcoopgamma_filter_t* restrict filter, double r, double g, double b)
-{
- switch (filter->depth)
- {
-#define X(CONST, MEMBER, MAX, TYPE)\
- case CONST:\
- libclut_gamma(&(filter->ramps.MEMBER), MAX, TYPE, r, g, b);\
- break;
-LIST_DEPTHS
-#undef X
- default:
- abort();
- }
-}
-
-
-/**
- * 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;
-
- if (xflag)
- for (i = 0; i < filters_n; i++)
- crtc_updates[i].filter.lifespan = LIBCOOPGAMMA_REMOVE;
- else if (dflag)
- for (i = 0; i < filters_n; i++)
- crtc_updates[i].filter.lifespan = LIBCOOPGAMMA_UNTIL_DEATH;
- else
- for (i = 0; i < filters_n; i++)
- crtc_updates[i].filter.lifespan = LIBCOOPGAMMA_UNTIL_REMOVAL;
-
- if (!xflag && (names != NULL))
- if ((r = make_slaves()) < 0)
- return cleanup(r);
-
- if (names == NULL)
- for (i = 0, r = 1; i < filters_n; i++)
- {
- if (!(crtc_updates[i].master) || !(crtc_info[crtc_updates[i].crtc].supported))
- continue;
- if (!xflag)
- fill_filter(&(crtc_updates[i].filter), rgamma, ggamma, bgamma);
- r = update_filter(i, 0);
- if ((r == -2) || ((r == -1) && (errno != EAGAIN)))
- return cleanup(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 cleanup(r);
- }
- }
- else
- for (i = 0, r = 1; i < filters_n; i++)
- {
- if (!(crtc_info[crtc_updates[i].crtc].supported))
- continue;
- for (j = 0; names[j] != NULL; j++)
- if (!strcasecmp(crtc_updates[i].filter.crtc, names[j]))
- {
- fill_filter(&(crtc_updates[i].filter), rgammas[j], ggammas[j], bgammas[j]);
- r = update_filter(i, 0);
- if ((r == -2) || ((r == -1) && (errno != EAGAIN)))
- return cleanup(r);
- break;
- }
- }
-
- while (r != 1)
- if ((r = synchronise(-1)) < 0)
- return cleanup(r);
-
- if (!dflag)
- return cleanup(0);
-
- if (libcoopgamma_set_nonblocking(&cg, 0) < 0)
- return cleanup(-1);
- for (;;)
- if (libcoopgamma_synchronise(&cg, NULL, 0, &j) < 0)
- switch (errno)
- {
- case 0:
- break;
- case ENOTRECOVERABLE:
- goto enotrecoverable;
- default:
- return cleanup(-1);
- }
-
- enotrecoverable:
- for (;;)
- if (pause() < 0)
- return cleanup(-1);
-}
-
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-25 06:25:06 +0000