aboutsummaryrefslogtreecommitdiffstats
path: root/src/cg-limits.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/cg-limits.c')
-rw-r--r--src/cg-limits.c731
1 files changed, 0 insertions, 731 deletions
diff --git a/src/cg-limits.c b/src/cg-limits.c
deleted file mode 100644
index 8390385..0000000
--- a/src/cg-limits.c
+++ /dev/null
@@ -1,731 +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 = -((int64_t)1 << 62);
-
-/**
- * The default class for the program
- */
-char default_class[] = PKGNAME "::cg-limits::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;
-
-/**
- * -B: brightness listing file
- */
-static char* Bflag = NULL;
-
-/**
- * -C: constrat listing file
- */
-static char* Cflag = NULL;
-
-/**
- * The brightness of the red channel
- */
-static double rbrightness = 0;
-
-/**
- * The brightness of the green channel
- */
-static double gbrightness = 0;
-
-/**
- * The brightness of the blue channel
- */
-static double bbrightness = 0;
-
-/**
- * The contrast of the red channel
- */
-static double rcontrast = 1;
-
-/**
- * The contrast of the green channel
- */
-static double gcontrast = 1;
-
-/**
- * The contrast of the blue channel
- */
-static double bcontrast = 1;
-
-/**
- * `NULL`-terminated list of output names
- * listed in the brightness configuration file
- */
-static char** brightness_names = NULL;
-
-/**
- * The brightness of the red channel on monitor
- * with same index in `brightness_names`
- */
-static double* rbrightnesses = NULL;
-
-/**
- * The brightness of the green channel on monitor
- * with same index in `brightness_names`
- */
-static double* gbrightnesses = NULL;
-
-/**
- * The brightness of the blue channel on monitor
- * with same index in `brightness_names`
- */
-static double* bbrightnesses = NULL;
-
-/**
- * `NULL`-terminated list of output names
- * listed in the contrast configuration file
- */
-static char** contrast_names = NULL;
-
-/**
- * The contrast of the red channel on monitor
- * with same index in `contrast_names`
- */
-static double* rcontrasts = NULL;
-
-/**
- * The contrast of the green channel on monitor
- * with same index in `contrast_names`
- */
-static double* gcontrasts = NULL;
-
-/**
- * The contrast of the blue channel on monitor
- * with same index in `contrast_names`
- */
-static double* bcontrasts = 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] "
- "([-B brightness-file] [-C contrast-file] | brightness-all:contrast-all | "
- "brightness-red:contrast-red brightness-green:contrast-green brightness-blue:contrast-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 (brightness_names != NULL)
- {
- char** p = brightness_names;
- while (*p)
- free(*p++);
- }
- free(brightness_names);
- free(rbrightnesses);
- free(gbrightnesses);
- free(bbrightnesses);
- if (contrast_names != NULL)
- {
- char** p = contrast_names;
- while (*p)
- free(*p++);
- }
- free(contrast_names);
- free(rcontrasts);
- free(gcontrasts);
- free(bcontrasts);
- 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 'B':
- if (Bflag || !(Bflag = arg))
- usage();
- return 1;
- case 'C':
- if (Cflag || !(Cflag = 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 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 || isinf(*out) || isnan(*out) || *end)
- return -1;
- if (!*str || !strchr("-0123456789.", *str))
- return -1;
- return 0;
-}
-
-
-/**
- * Parse two doubles encoded as a "%lf:%lf" string
- *
- * @param left Output parameter for the first value
- * @param right Output parameter for the second value
- * @param str The string
- * @return Zero on success, -1 if the string is invalid
- */
-static int parse_twidouble(double* restrict left, double* restrict right, const char* restrict str)
-{
- char* p = strchr(str, ':');
- int r;
- if (p == NULL)
- return -1;
- *p = '\0';
- r = -((parse_double(left, str) < 0) || (parse_double(right, p + 1) < 0));
- *p = ':';
- return r;
-}
-
-
-/**
- * Parse configuration file
- *
- * @param pathname The pathname of the file
- * @param names Reference to the list of names
- * @param rs Reference to the list of red values
- * @param gs Reference to the list of green values
- * @param bs Reference to the list of blue values
- * @return Zero on success, -1 on error
- */
-static int parse_conf_file(const char* restrict pathname, char*** restrict names,
- double** restrict rs, double** restrict gs, double** restrict bs)
-{
- 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(*rs, new_size * sizeof(**rs));
- if (new == NULL)
- goto fail;
- *rs = new;
-
- new = realloc(*gs, new_size * sizeof(**gs));
- if (new == NULL)
- goto fail;
- *gs = new;
-
- new = realloc(*bs, new_size * sizeof(**bs));
- if (new == NULL)
- goto fail;
- *bs = 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((*rs) + ptr, r) < 0) ||
- (parse_double((*gs) + ptr, g) < 0) ||
- (parse_double((*bs) + 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;
-}
-
-
-/**
- * Parse brightness configuration file
- *
- * @param pathname The pathname of the file
- * @return Zero on success, -1 on error
- */
-static int parse_brightness_file(const char* restrict pathname)
-{
- return parse_conf_file(pathname, &brightness_names, &rbrightnesses, &gbrightnesses, &bbrightnesses);
-}
-
-
-/**
- * Parse contrast configuration file
- *
- * @param pathname The pathname of the file
- * @return Zero on success, -1 on error
- */
-static int parse_contrast_file(const char* restrict pathname)
-{
- return parse_conf_file(pathname, &contrast_names, &rcontrasts, &gcontrasts, &bcontrasts);
-}
-
-
-/**
- * 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_Bflag = 0, free_Cflag = 0, saved_errno;
- int q = xflag + dflag;
- if ((q > 1) || (xflag && ((Bflag != NULL) || (Cflag != NULL) || (argc > 0) || (prio != NULL))))
- usage();
- if ((Bflag || Cflag) && argc)
- usage();
-
- if (argc == 1)
- {
- if (parse_twidouble(&rbrightness, &rcontrast, argv[0]) < 0)
- usage();
- bbrightness = gbrightness = rbrightness;
- bcontrast = gcontrast = rcontrast;
- }
- else if (argc == 3)
- {
- if (parse_twidouble(&rbrightness, &rcontrast, argv[0]) < 0)
- usage();
- if (parse_twidouble(&gbrightness, &gcontrast, argv[1]) < 0)
- usage();
- if (parse_twidouble(&bbrightness, &bcontrast, argv[2]) < 0)
- usage();
- }
- else if (argc)
- usage();
-
- if (!argc && !Bflag && !xflag)
- {
- Bflag = get_conf_file("brightness");
- if (Bflag == NULL)
- return -1;
- free_Bflag = 1;
- }
- if (Bflag)
- if (parse_brightness_file(Bflag) < 0)
- goto fail;
- if (free_Bflag)
- free(Bflag), Bflag = NULL;
-
- if (!argc && !Cflag && !xflag)
- {
- Cflag = get_conf_file("contrast");
- if (Cflag == NULL)
- return -1;
- free_Cflag = 1;
- }
- if (Cflag)
- if (parse_contrast_file(Cflag) < 0)
- goto fail;
- if (free_Cflag)
- free(Cflag), Cflag = NULL;
-
- return 0;
- fail:
- saved_errno = errno;
- if (free_Bflag)
- free(Bflag), Bflag = NULL;
- if (free_Cflag)
- free(Cflag), Cflag = NULL;
- errno = saved_errno;
- return cleanup(-1);
-}
-
-
-/**
- * Fill a filter
- *
- * @param filter The filter to fill
- * @param rb The red brightness
- * @param rc The red contrast
- * @param gb The green brightness
- * @param gc The green contrast
- * @param bb The blue brightness
- * @param bc The blue contrast
- * @return Zero on success, -1 on error
- */
-static int fill_filter(libcoopgamma_filter_t* restrict filter,
- double rb, double rc, double gb, double gc, double bb, double bc)
-{
- union libcoopgamma_ramps dramps;
- size_t size;
-
- if (filter->depth == LIBCOOPGAMMA_DOUBLE)
- {
- libclut_rgb_limits(&(filter->ramps.d), (double)1, double, rb, rc, gb, gc, bb, bc);
- libclut_clip(&(filter->ramps.d), (double)1, double, 1, 1, 1);
- return 0;
- }
- if (filter->depth == LIBCOOPGAMMA_FLOAT)
- {
- libclut_rgb_limits(&(filter->ramps.f), (float)1, float, rb, rc, gb, gc, bb, bc);
- libclut_clip(&(filter->ramps.f), (float)1, float, 1, 1, 1);
- return 0;
- }
-
- size = dramps.d.red_size = filter->ramps.d.red_size;
- size += dramps.d.green_size = filter->ramps.d.green_size;
- size += dramps.d.blue_size = filter->ramps.d.blue_size;
- dramps.d.red = calloc(size, sizeof(double));
- if (dramps.d.red == NULL)
- return -1;
- dramps.d.green = dramps.d.red + dramps.d.red_size;
- dramps.d.blue = dramps.d.green + dramps.d.green_size;
-
- libclut_start_over(&(dramps.d), (double)1, double, 1, 1, 1);
- libclut_rgb_limits(&(dramps.d), (double)1, double, rb, rc, gb, gc, bb, bc);
- libclut_clip(&(dramps.d), (double)1, double, 1, 1, 1);
-
- switch (filter->depth)
- {
- case LIBCOOPGAMMA_UINT8:
- libclut_translate(&(filter->ramps.u8), UINT8_MAX, uint8_t, &(dramps.d), (double)1, double);
- break;
- case LIBCOOPGAMMA_UINT16:
- libclut_translate(&(filter->ramps.u16), UINT16_MAX, uint16_t, &(dramps.d), (double)1, double);
- break;
- case LIBCOOPGAMMA_UINT32:
- libclut_translate(&(filter->ramps.u32), UINT32_MAX, uint32_t, &(dramps.d), (double)1, double);
- break;
- case LIBCOOPGAMMA_UINT64:
- libclut_translate(&(filter->ramps.u64), UINT64_MAX, uint64_t, &(dramps.d), (double)1, double);
- break;
- default:
- abort();
- }
-
- free(dramps.d.red);
- 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, k;
-
- 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 && ((brightness_names != NULL) || (contrast_names != NULL)))
- if ((r = make_slaves()) < 0)
- return cleanup(r);
-
- if ((brightness_names == NULL) && (contrast_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)
- if ((r = fill_filter(&(crtc_updates[i].filter), rbrightness, rcontrast,
- gbrightness, gcontrast, bbrightness, bcontrast)) < 0)
- return cleanup(r);
- 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
- {
- char* empty = NULL;
- char** bnames = brightness_names ? brightness_names : &empty;
- char** cnames = contrast_names ? contrast_names : &empty;
- for (i = 0, r = 1; i < filters_n; i++)
- {
- if (!(crtc_info[crtc_updates[i].crtc].supported))
- continue;
- for (j = 0; bnames[j] != NULL; j++)
- if (!strcasecmp(crtc_updates[i].filter.crtc, bnames[j]))
- break;
- for (k = 0; cnames[k] != NULL; k++)
- if (!strcasecmp(crtc_updates[i].filter.crtc, cnames[k]))
- break;
- if ((bnames[j] != NULL) || (cnames[k] != NULL))
- {
- double rb = 0, gb = 0, bb = 0, rc = 1, bc = 1, gc = 1;
- if (bnames[j] != NULL)
- rb = rbrightnesses[j], gb = gbrightnesses[j], bb = bbrightnesses[j];
- if (cnames[j] != NULL)
- rc = rcontrasts[j], gc = gcontrasts[j], bc = bcontrasts[j];
- if ((r = fill_filter(&(crtc_updates[i].filter), rb, rc, gb, gc, bb, bc)) < 0)
- return cleanup(r);
- r = update_filter(i, 0);
- if ((r == -2) || ((r == -1) && (errno != EAGAIN)))
- return cleanup(r);
- }
- }
- }
-
- 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 2024-11-28 23:04:28 +0000