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-rw-r--r--src/redshift.c153
1 files changed, 98 insertions, 55 deletions
diff --git a/src/redshift.c b/src/redshift.c
index bb418c7..18cc2c5 100644
--- a/src/redshift.c
+++ b/src/redshift.c
@@ -128,7 +128,7 @@ static const gamma_method_t gamma_methods[] = {
(gamma_method_set_temperature_func *)w32gdi_set_temperature
},
#endif
- { NULL, NULL, NULL, NULL, NULL }
+ { NULL }
};
@@ -169,7 +169,7 @@ static const location_provider_t location_providers[] = {
(location_provider_get_location_func *)
location_manual_get_location
},
- { NULL, NULL, NULL, NULL }
+ { NULL }
};
/* Bounds for parameters. */
@@ -187,6 +187,9 @@ static const location_provider_t location_providers[] = {
#define DEFAULT_NIGHT_TEMP 3700
#define DEFAULT_GAMMA 1.0
+/* The color temperature when no adjustment is applied. */
+#define NEUTRAL_TEMP 6500
+
/* Angular elevation of the sun at which the color temperature
transition period starts and ends (in degress).
Transition during twilight, and while the sun is lower than
@@ -194,6 +197,13 @@ static const location_provider_t location_providers[] = {
#define TRANSITION_LOW SOLAR_CIVIL_TWILIGHT_ELEV
#define TRANSITION_HIGH 3.0
+/* Program modes. */
+typedef enum {
+ PROGRAM_MODE_CONTINUAL,
+ PROGRAM_MODE_ONE_SHOT,
+ PROGRAM_MODE_RESET
+} program_mode_t;
+
#ifdef HAVE_SYS_SIGNAL_H
@@ -284,6 +294,7 @@ print_help(const char *program_name)
" \t\t(Type `list' to see available methods)\n"
" -o\t\tOne shot mode (do not continously adjust"
" color temperature)\n"
+ " -x\t\tReset mode (remove adjustment from screen)\n"
" -r\t\tDisable temperature transitions\n"
" -t DAY:NIGHT\tColor temperature to set at daytime/night\n"),
stdout);
@@ -466,13 +477,13 @@ main(int argc, char *argv[])
char *provider_args = NULL;
int transition = 1;
- int one_shot = 0;
+ program_mode_t mode = PROGRAM_MODE_CONTINUAL;
int verbose = 0;
char *s;
/* Parse arguments. */
int opt;
- while ((opt = getopt(argc, argv, "g:hl:m:ort:v")) != -1) {
+ while ((opt = getopt(argc, argv, "g:hl:m:ort:vx")) != -1) {
switch (opt) {
case 'g':
s = strchr(optarg, ':');
@@ -594,7 +605,7 @@ main(int argc, char *argv[])
}
break;
case 'o':
- one_shot = 1;
+ mode = PROGRAM_MODE_ONE_SHOT;
break;
case 'r':
transition = 0;
@@ -615,6 +626,9 @@ main(int argc, char *argv[])
case 'v':
verbose = 1;
break;
+ case 'x':
+ mode = PROGRAM_MODE_RESET;
+ break;
case '?':
fputs(_("Try `-h' for more information.\n"), stderr);
exit(EXIT_FAILURE);
@@ -626,66 +640,77 @@ main(int argc, char *argv[])
try all providers until one that works is found. */
location_state_t location_state;
- if (provider != NULL) {
- /* Use provider specified on command line. */
- r = provider_try_start(provider, &location_state,
- provider_args);
- if (r < 0) exit(EXIT_FAILURE);
- } else {
- /* Try all providers, use the first that works. */
- for (int i = 0; location_providers[i].name != NULL; i++) {
- const location_provider_t *p = &location_providers[i];
- r = provider_try_start(p, &location_state, NULL);
- if (r < 0) {
- fputs(_("Trying other provider...\n"), stderr);
- continue;
- }
+ /* Location is not needed for reset mode. */
+ if (mode != PROGRAM_MODE_RESET) {
+ if (provider != NULL) {
+ /* Use provider specified on command line. */
+ r = provider_try_start(provider, &location_state,
+ provider_args);
+ if (r < 0) exit(EXIT_FAILURE);
+ } else {
+ /* Try all providers, use the first that works. */
+ for (int i = 0;
+ location_providers[i].name != NULL; i++) {
+ const location_provider_t *p =
+ &location_providers[i];
+ r = provider_try_start(p, &location_state,
+ NULL);
+ if (r < 0) {
+ fputs(_("Trying other provider...\n"),
+ stderr);
+ continue;
+ }
- provider = p;
- break;
- }
+ provider = p;
+ break;
+ }
- /* Failure if no providers were successful at this point. */
- if (provider == NULL) {
- fputs(_("No more location providers to try.\n"),
- stderr);
- exit(EXIT_FAILURE);
+ /* Failure if no providers were successful at this
+ point. */
+ if (provider == NULL) {
+ fputs(_("No more location providers"
+ " to try.\n"), stderr);
+ exit(EXIT_FAILURE);
+ }
}
}
float lat = NAN;
float lon = NAN;
- /* Get current location. */
- r = provider->get_location(&location_state, &lat, &lon);
- if (r < 0) {
- fputs(_("Unable to get location from provider.\n"), stderr);
- exit(EXIT_FAILURE);
- }
+ if (mode != PROGRAM_MODE_RESET) {
+ /* Get current location. */
+ r = provider->get_location(&location_state, &lat, &lon);
+ if (r < 0) {
+ fputs(_("Unable to get location from provider.\n"),
+ stderr);
+ exit(EXIT_FAILURE);
+ }
- provider->free(&location_state);
+ provider->free(&location_state);
- if (verbose) {
- /* TRANSLATORS: Append degree symbols if possible. */
- printf(_("Location: %f, %f\n"), lat, lon);
- }
+ if (verbose) {
+ /* TRANSLATORS: Append degree symbols if possible. */
+ printf(_("Location: %f, %f\n"), lat, lon);
+ }
- /* Latitude */
- if (lat < MIN_LAT || lat > MAX_LAT) {
- /* TRANSLATORS: Append degree symbols if possible. */
- fprintf(stderr,
- _("Latitude must be between %.1f and %.1f.\n"),
- MIN_LAT, MAX_LAT);
- exit(EXIT_FAILURE);
- }
+ /* Latitude */
+ if (lat < MIN_LAT || lat > MAX_LAT) {
+ /* TRANSLATORS: Append degree symbols if possible. */
+ fprintf(stderr,
+ _("Latitude must be between %.1f and %.1f.\n"),
+ MIN_LAT, MAX_LAT);
+ exit(EXIT_FAILURE);
+ }
- /* Longitude */
- if (lon < MIN_LON || lon > MAX_LON) {
- /* TRANSLATORS: Append degree symbols if possible. */
- fprintf(stderr,
- _("Longitude must be between %.1f and %.1f.\n"),
- MIN_LON, MAX_LON);
- exit(EXIT_FAILURE);
+ /* Longitude */
+ if (lon < MIN_LON || lon > MAX_LON) {
+ /* TRANSLATORS: Append degree symbols if possible. */
+ fprintf(stderr,
+ _("Longitude must be between"
+ " %.1f and %.1f.\n"), MIN_LON, MAX_LON);
+ exit(EXIT_FAILURE);
+ }
}
/* Color temperature at daytime */
@@ -748,7 +773,9 @@ main(int argc, char *argv[])
}
}
- if (one_shot) {
+ switch (mode) {
+ case PROGRAM_MODE_ONE_SHOT:
+ {
/* Current angular elevation of the sun */
double now;
r = systemtime_get_time(&now);
@@ -778,7 +805,21 @@ main(int argc, char *argv[])
method->free(&state);
exit(EXIT_FAILURE);
}
- } else {
+ }
+ break;
+ case PROGRAM_MODE_RESET:
+ {
+ /* Reset screen */
+ r = method->set_temperature(&state, NEUTRAL_TEMP, gamma);
+ if (r < 0) {
+ fputs(_("Temperature adjustment failed.\n"), stderr);
+ method->free(&state);
+ exit(EXIT_FAILURE);
+ }
+ }
+ break;
+ case PROGRAM_MODE_CONTINUAL:
+ {
/* Transition state */
double short_trans_end = 0;
int short_trans = 0;
@@ -955,6 +996,8 @@ main(int argc, char *argv[])
/* Restore saved gamma ramps */
method->restore(&state);
}
+ break;
+ }
/* Clean up gamma adjustment state */
method->free(&state);
generated by cgit v1.2.3-70-g09d2 (git 2.48.0) at 2025-04-07 21:44:34 +0000