Commit: 3e72978d2e43e69c27c6c27a9a9b9f1ee8ca8278
Parent: 1eb485b505a79966f9ea21c8bf8cb072138a55b1
Author: Randy Palamar
Date: Sun, 2 Apr 2023 17:45:55 -0600
ssct.c: reformat
Diffstat:
| M | ssct.c | | | 514 | +++++++++++++++++++++++++++++++++++++++++-------------------------------------- |
1 file changed, 268 insertions(+), 246 deletions(-)
diff --git a/ssct.c b/ssct.c
@@ -6,277 +6,299 @@
#include "ssct.h"
-static void usage(char * pname)
+static void
+usage(char *pname)
{
- printf("Xsct (%s)\n"
- "Usage: %s [options] [temperature] [brightness]\n"
- "\tIf the argument is 0, xsct resets the display to the default temperature (6500K)\n"
- "\tIf no arguments are passed, xsct estimates the current display temperature and brightness\n"
- "Options:\n"
- "\t-h, --help \t xsct will display this usage information\n"
- "\t-v, --verbose \t xsct will display debugging information\n"
- "\t-d, --delta\t xsct will shift temperature by the temperature value\n"
- "\t-s, --screen N\t xsct will only select screen specified by given zero-based index\n"
- "\t-c, --crtc N\t xsct will only select CRTC specified by given zero-based index\n", XSCT_VERSION, pname);
+ printf("Xsct (%s)\n"
+ "Usage: %s [options] [temperature] [brightness]\n"
+ "\tIf the argument is 0, xsct resets the display to the default "
+ "temperature (6500K)\n"
+ "\tIf no arguments are passed, xsct estimates the current "
+ "display temperature and brightness\n"
+ "Options:\n"
+ "\t-h, --help \t xsct will display this usage information\n"
+ "\t-v, --verbose \t xsct will display debugging information\n"
+ "\t-d, --delta\t xsct will shift temperature by the temperature "
+ "value\n"
+ "\t-s, --screen N\t xsct will only select screen specified by "
+ "given zero-based index\n"
+ "\t-c, --crtc N\t xsct will only select CRTC specified by given "
+ "zero-based index\n",
+ XSCT_VERSION, pname);
}
-static double DoubleTrim(double x, double a, double b)
+static double
+DoubleTrim(double x, double a, double b)
{
- double buff[3] = {a, x, b};
- return buff[ (int)(x > a) + (int)(x > b) ];
+ double buff[3] = { a, x, b };
+ return buff[(int)(x > a) + (int)(x > b)];
}
-static struct temp_status get_sct_for_screen(Display *dpy, int screen, int icrtc, int fdebug)
+static struct temp_status
+get_sct_for_screen(Display *dpy, int screen, int icrtc, int fdebug)
{
- Window root = RootWindow(dpy, screen);
- XRRScreenResources *res = XRRGetScreenResourcesCurrent(dpy, root);
+ Window root = RootWindow(dpy, screen);
+ XRRScreenResources *res = XRRGetScreenResourcesCurrent(dpy, root);
- int n, c;
- double t = 0.0;
- double gammar = 0.0, gammag = 0.0, gammab = 0.0, gammad = 0.0;
- struct temp_status temp;
- temp.temp = 0;
- temp.brightness = 1.0;
+ int n, c;
+ double t = 0.0;
+ double gammar = 0.0, gammag = 0.0, gammab = 0.0, gammad = 0.0;
+ struct temp_status temp;
+ temp.temp = 0;
+ temp.brightness = 1.0;
- n = res->ncrtc;
- if ((icrtc >= 0) && (icrtc < n))
- n = 1;
- else
- icrtc = 0;
- for (c = icrtc; c < (icrtc + n); c++)
- {
- RRCrtc crtcxid;
- int size;
- XRRCrtcGamma *crtc_gamma;
- crtcxid = res->crtcs[c];
- crtc_gamma = XRRGetCrtcGamma(dpy, crtcxid);
- size = crtc_gamma->size;
- gammar += crtc_gamma->red[size - 1];
- gammag += crtc_gamma->green[size - 1];
- gammab += crtc_gamma->blue[size - 1];
+ n = res->ncrtc;
+ if ((icrtc >= 0) && (icrtc < n))
+ n = 1;
+ else
+ icrtc = 0;
+ for (c = icrtc; c < (icrtc + n); c++) {
+ RRCrtc crtcxid;
+ int size;
+ XRRCrtcGamma *crtc_gamma;
+ crtcxid = res->crtcs[c];
+ crtc_gamma = XRRGetCrtcGamma(dpy, crtcxid);
+ size = crtc_gamma->size;
+ gammar += crtc_gamma->red[size - 1];
+ gammag += crtc_gamma->green[size - 1];
+ gammab += crtc_gamma->blue[size - 1];
- XRRFreeGamma(crtc_gamma);
- }
- XFree(res);
- temp.brightness = (gammar > gammag) ? gammar : gammag;
- temp.brightness = (gammab > temp.brightness) ? gammab : temp.brightness;
- if (temp.brightness > 0.0 && n > 0)
- {
- gammar /= temp.brightness;
- gammag /= temp.brightness;
- gammab /= temp.brightness;
- temp.brightness /= n;
- temp.brightness /= BRIGHTHESS_DIV;
- temp.brightness = DoubleTrim(temp.brightness, 0.0, 1.0);
- if (fdebug > 0) fprintf(stderr, "DEBUG: Gamma: %f, %f, %f, brightness: %f\n", gammar, gammag, gammab, temp.brightness);
- gammad = gammab - gammar;
- if (gammad < 0.0)
- {
- if (gammab > 0.0)
- {
- t = exp((gammag + 1.0 + gammad - (GAMMA_K0GR + GAMMA_K0BR)) / (GAMMA_K1GR + GAMMA_K1BR)) + TEMPERATURE_ZERO;
- }
- else
- {
- t = (gammag > 0.0) ? (exp((gammag - GAMMA_K0GR) / GAMMA_K1GR) + TEMPERATURE_ZERO) : TEMPERATURE_ZERO;
- }
- }
- else
- {
- t = exp((gammag + 1.0 - gammad - (GAMMA_K0GB + GAMMA_K0RB)) / (GAMMA_K1GB + GAMMA_K1RB)) + (TEMPERATURE_NORM - TEMPERATURE_ZERO);
- }
- }
- else
- temp.brightness = DoubleTrim(temp.brightness, 0.0, 1.0);
+ XRRFreeGamma(crtc_gamma);
+ }
+ XFree(res);
+ temp.brightness = (gammar > gammag) ? gammar : gammag;
+ temp.brightness = (gammab > temp.brightness) ? gammab : temp.brightness;
+ if (temp.brightness > 0.0 && n > 0) {
+ gammar /= temp.brightness;
+ gammag /= temp.brightness;
+ gammab /= temp.brightness;
+ temp.brightness /= n;
+ temp.brightness /= BRIGHTHESS_DIV;
+ temp.brightness = DoubleTrim(temp.brightness, 0.0, 1.0);
+ if (fdebug > 0)
+ fprintf(stderr,
+ "DEBUG: Gamma: %f, %f, %f, brightness: %f\n",
+ gammar, gammag, gammab, temp.brightness);
+ gammad = gammab - gammar;
+ if (gammad < 0.0) {
+ if (gammab > 0.0) {
+ t = exp((gammag + 1.0 + gammad
+ - (GAMMA_K0GR + GAMMA_K0BR))
+ / (GAMMA_K1GR + GAMMA_K1BR))
+ + TEMPERATURE_ZERO;
+ } else {
+ t = (gammag > 0.0) ? (
+ exp((gammag - GAMMA_K0GR) / GAMMA_K1GR)
+ + TEMPERATURE_ZERO)
+ : TEMPERATURE_ZERO;
+ }
+ } else {
+ t = exp((gammag + 1.0 - gammad
+ - (GAMMA_K0GB + GAMMA_K0RB))
+ / (GAMMA_K1GB + GAMMA_K1RB))
+ + (TEMPERATURE_NORM - TEMPERATURE_ZERO);
+ }
+ } else
+ temp.brightness = DoubleTrim(temp.brightness, 0.0, 1.0);
- temp.temp = (int)(t + 0.5);
+ temp.temp = (int)(t + 0.5);
- return temp;
+ return temp;
}
-static void sct_for_screen(Display *dpy, int screen, int icrtc, struct temp_status temp, int fdebug)
+static void
+sct_for_screen(Display *dpy, int screen, int icrtc, struct temp_status temp,
+ int fdebug)
{
- double t = 0.0, b = 1.0, g = 0.0, gammar, gammag, gammab;
- int n, c;
- Window root = RootWindow(dpy, screen);
- XRRScreenResources *res = XRRGetScreenResourcesCurrent(dpy, root);
+ double t = 0.0, b = 1.0, g = 0.0, gammar, gammag, gammab;
+ int n, c;
+ Window root = RootWindow(dpy, screen);
+ XRRScreenResources *res = XRRGetScreenResourcesCurrent(dpy, root);
- t = (double)temp.temp;
- b = DoubleTrim(temp.brightness, 0.0, 1.0);
- if (temp.temp < TEMPERATURE_NORM)
- {
- gammar = 1.0;
- if (temp.temp > TEMPERATURE_ZERO)
- {
- g = log(t - TEMPERATURE_ZERO);
- gammag = DoubleTrim(GAMMA_K0GR + GAMMA_K1GR * g, 0.0, 1.0);
- gammab = DoubleTrim(GAMMA_K0BR + GAMMA_K1BR * g, 0.0, 1.0);
- }
- else
- {
- gammag = 0.0;
- gammab = 0.0;
- }
- }
- else
- {
- g = log(t - (TEMPERATURE_NORM - TEMPERATURE_ZERO));
- gammar = DoubleTrim(GAMMA_K0RB + GAMMA_K1RB * g, 0.0, 1.0);
- gammag = DoubleTrim(GAMMA_K0GB + GAMMA_K1GB * g, 0.0, 1.0);
- gammab = 1.0;
- }
- if (fdebug > 0) fprintf(stderr, "DEBUG: Gamma: %f, %f, %f, brightness: %f\n", gammar, gammag, gammab, b);
- n = res->ncrtc;
- if ((icrtc >= 0) && (icrtc < n))
- n = 1;
- else
- icrtc = 0;
- for (c = icrtc; c < (icrtc + n); c++)
- {
- int size, i;
- RRCrtc crtcxid;
- XRRCrtcGamma *crtc_gamma;
- crtcxid = res->crtcs[c];
- size = XRRGetCrtcGammaSize(dpy, crtcxid);
+ t = (double)temp.temp;
+ b = DoubleTrim(temp.brightness, 0.0, 1.0);
+ if (temp.temp < TEMPERATURE_NORM) {
+ gammar = 1.0;
+ if (temp.temp > TEMPERATURE_ZERO) {
+ g = log(t - TEMPERATURE_ZERO);
+ gammag =
+ DoubleTrim(GAMMA_K0GR + GAMMA_K1GR * g, 0.0, 1.0);
+ gammab =
+ DoubleTrim(GAMMA_K0BR + GAMMA_K1BR * g, 0.0, 1.0);
+ } else {
+ gammag = 0.0;
+ gammab = 0.0;
+ }
+ } else {
+ g = log(t - (TEMPERATURE_NORM - TEMPERATURE_ZERO));
+ gammar = DoubleTrim(GAMMA_K0RB + GAMMA_K1RB * g, 0.0, 1.0);
+ gammag = DoubleTrim(GAMMA_K0GB + GAMMA_K1GB * g, 0.0, 1.0);
+ gammab = 1.0;
+ }
+ if (fdebug > 0)
+ fprintf(stderr, "DEBUG: Gamma: %f, %f, %f, brightness: %f\n",
+ gammar, gammag, gammab, b);
+ n = res->ncrtc;
+ if ((icrtc >= 0) && (icrtc < n))
+ n = 1;
+ else
+ icrtc = 0;
+ for (c = icrtc; c < (icrtc + n); c++) {
+ int size, i;
+ RRCrtc crtcxid;
+ XRRCrtcGamma *crtc_gamma;
+ crtcxid = res->crtcs[c];
+ size = XRRGetCrtcGammaSize(dpy, crtcxid);
- crtc_gamma = XRRAllocGamma(size);
+ crtc_gamma = XRRAllocGamma(size);
- for (i = 0; i < size; i++)
- {
- g = GAMMA_MULT * b * (double)i / (double)size;
- crtc_gamma->red[i] = (unsigned short int)(g * gammar + 0.5);
- crtc_gamma->green[i] = (unsigned short int)(g * gammag + 0.5);
- crtc_gamma->blue[i] = (unsigned short int)(g * gammab + 0.5);
- }
+ for (i = 0; i < size; i++) {
+ g = GAMMA_MULT * b * (double)i / (double)size;
+ crtc_gamma->red[i] =
+ (unsigned short int)(g * gammar + 0.5);
+ crtc_gamma->green[i] =
+ (unsigned short int)(g * gammag + 0.5);
+ crtc_gamma->blue[i] =
+ (unsigned short int)(g * gammab + 0.5);
+ }
- XRRSetCrtcGamma(dpy, crtcxid, crtc_gamma);
- XRRFreeGamma(crtc_gamma);
- }
+ XRRSetCrtcGamma(dpy, crtcxid, crtc_gamma);
+ XRRFreeGamma(crtc_gamma);
+ }
- XFree(res);
+ XFree(res);
}
-int main(int argc, char **argv)
+int
+main(int argc, char **argv)
{
- int i, screen, screens;
- int screen_specified, screen_first, screen_last, crtc_specified;
- struct temp_status temp;
- int fdebug = 0, fdelta = 0, fhelp = 0;
- Display *dpy = XOpenDisplay(NULL);
+ int i, screen, screens;
+ int screen_specified, screen_first, screen_last, crtc_specified;
+ struct temp_status temp;
+ int fdebug = 0, fdelta = 0, fhelp = 0;
+ Display *dpy = XOpenDisplay(NULL);
- if (!dpy)
- {
- perror("XOpenDisplay(NULL) failed");
- fprintf(stderr, "ERROR! Ensure DISPLAY is set correctly!\n");
- return EXIT_FAILURE;
- }
- screens = XScreenCount(dpy);
- screen_first = 0;
- screen_last = screens - 1;
- screen_specified = -1;
- crtc_specified = -1;
- temp.temp = DELTA_MIN;
- temp.brightness = -1.0;
- for (i = 1; i < argc; i++)
- {
- if ((strcmp(argv[i],"-h") == 0) || (strcmp(argv[i],"--help") == 0)) fhelp = 1;
- else if ((strcmp(argv[i],"-v") == 0) || (strcmp(argv[i],"--verbose") == 0)) fdebug = 1;
- else if ((strcmp(argv[i],"-d") == 0) || (strcmp(argv[i],"--delta") == 0)) fdelta = 1;
- else if ((strcmp(argv[i],"-s") == 0) || (strcmp(argv[i],"--screen") == 0))
- {
- i++;
- if (i < argc)
- {
- screen_specified = atoi(argv[i]);
- } else {
- fprintf(stderr, "ERROR! Required value for screen not specified!\n");
- fhelp = 1;
- }
- }
- else if ((strcmp(argv[i],"-c") == 0) || (strcmp(argv[i],"--crtc") == 0))
- {
- i++;
- if (i < argc)
- {
- crtc_specified = atoi(argv[i]);
- } else {
- fprintf(stderr, "ERROR! Required value for crtc not specified!\n");
- fhelp = 1;
- }
- }
- else if (temp.temp == DELTA_MIN) temp.temp = atoi(argv[i]);
- else if (temp.brightness < 0.0) temp.brightness = atof(argv[i]);
- else
- {
- fprintf(stderr, "ERROR! Unknown parameter: %s\n!", argv[i]);
- fhelp = 1;
- }
- }
+ if (!dpy) {
+ perror("XOpenDisplay(NULL) failed");
+ fprintf(stderr, "ERROR! Ensure DISPLAY is set correctly!\n");
+ return EXIT_FAILURE;
+ }
+ screens = XScreenCount(dpy);
+ screen_first = 0;
+ screen_last = screens - 1;
+ screen_specified = -1;
+ crtc_specified = -1;
+ temp.temp = DELTA_MIN;
+ temp.brightness = -1.0;
+ for (i = 1; i < argc; i++) {
+ if ((strcmp(argv[i], "-h") == 0)
+ || (strcmp(argv[i], "--help") == 0))
+ fhelp = 1;
+ else if ((strcmp(argv[i], "-v") == 0)
+ || (strcmp(argv[i], "--verbose") == 0))
+ fdebug = 1;
+ else if ((strcmp(argv[i], "-d") == 0)
+ || (strcmp(argv[i], "--delta") == 0))
+ fdelta = 1;
+ else if ((strcmp(argv[i], "-s") == 0)
+ || (strcmp(argv[i], "--screen") == 0)) {
+ i++;
+ if (i < argc) {
+ screen_specified = atoi(argv[i]);
+ } else {
+ fprintf(stderr, "ERROR! Required value for "
+ "screen not specified!\n");
+ fhelp = 1;
+ }
+ } else if ((strcmp(argv[i], "-c") == 0)
+ || (strcmp(argv[i], "--crtc") == 0)) {
+ i++;
+ if (i < argc) {
+ crtc_specified = atoi(argv[i]);
+ } else {
+ fprintf(stderr, "ERROR! Required value for "
+ "crtc not specified!\n");
+ fhelp = 1;
+ }
+ } else if (temp.temp == DELTA_MIN)
+ temp.temp = atoi(argv[i]);
+ else if (temp.brightness < 0.0)
+ temp.brightness = atof(argv[i]);
+ else {
+ fprintf(stderr, "ERROR! Unknown parameter: %s\n!",
+ argv[i]);
+ fhelp = 1;
+ }
+ }
- if (fhelp > 0)
- {
- usage(argv[0]);
- }
- else if (screen_specified >= screens)
- {
- fprintf(stderr, "ERROR! Invalid screen index: %d!\n", screen_specified);
- }
- else
- {
- if (temp.brightness < 0.0) temp.brightness = 1.0;
- if (screen_specified >= 0)
- {
- screen_first = screen_specified;
- screen_last = screen_specified;
- }
- if ((temp.temp < 0) && (fdelta == 0))
- {
- // No arguments, so print estimated temperature for each screen
- for (screen = screen_first; screen <= screen_last; screen++)
- {
- temp = get_sct_for_screen(dpy, screen, crtc_specified, fdebug);
- printf("Screen %d: temperature ~ %d %f\n", screen, temp.temp, temp.brightness);
- }
- }
- else
- {
- if (fdelta == 0)
- {
- // Set temperature to given value or default for a value of 0
- if (temp.temp == 0)
- {
- temp.temp = TEMPERATURE_NORM;
- }
- else if (temp.temp < TEMPERATURE_ZERO)
- {
- fprintf(stderr, "WARNING! Temperatures below %d cannot be displayed.\n", TEMPERATURE_ZERO);
- temp.temp = TEMPERATURE_ZERO;
- }
- for (screen = screen_first; screen <= screen_last; screen++)
- {
- sct_for_screen(dpy, screen, crtc_specified, temp, fdebug);
- }
- }
- else
- {
- // Delta mode: Shift temperature of each screen by given value
- for (screen = screen_first; screen <= screen_last; screen++)
- {
- struct temp_status tempd = get_sct_for_screen(dpy, screen, crtc_specified, fdebug);
- tempd.temp += temp.temp;
- if (tempd.temp < TEMPERATURE_ZERO)
- {
- fprintf(stderr, "WARNING! Temperatures below %d cannot be displayed.\n", TEMPERATURE_ZERO);
- tempd.temp = TEMPERATURE_ZERO;
- }
- sct_for_screen(dpy, screen, crtc_specified, tempd, fdebug);
- }
- }
- }
- }
+ if (fhelp > 0) {
+ usage(argv[0]);
+ } else if (screen_specified >= screens) {
+ fprintf(stderr, "ERROR! Invalid screen index: %d!\n",
+ screen_specified);
+ } else {
+ if (temp.brightness < 0.0)
+ temp.brightness = 1.0;
+ if (screen_specified >= 0) {
+ screen_first = screen_specified;
+ screen_last = screen_specified;
+ }
+ if ((temp.temp < 0) && (fdelta == 0)) {
+ // No arguments, so print estimated temperature for each
+ // screen
+ for (screen = screen_first; screen <= screen_last;
+ screen++) {
+ temp = get_sct_for_screen(
+ dpy, screen, crtc_specified, fdebug);
+ printf("Screen %d: temperature ~ %d %f\n",
+ screen, temp.temp, temp.brightness);
+ }
+ } else {
+ if (fdelta == 0) {
+ // Set temperature to given value or default for
+ // a value of 0
+ if (temp.temp == 0) {
+ temp.temp = TEMPERATURE_NORM;
+ } else if (temp.temp < TEMPERATURE_ZERO) {
+ fprintf(stderr,
+ "WARNING! Temperatures below "
+ "%d cannot be displayed.\n",
+ TEMPERATURE_ZERO);
+ temp.temp = TEMPERATURE_ZERO;
+ }
+ for (screen = screen_first;
+ screen <= screen_last; screen++) {
+ sct_for_screen(dpy, screen,
+ crtc_specified, temp,
+ fdebug);
+ }
+ } else {
+ // Delta mode: Shift temperature of each screen
+ // by given value
+ for (screen = screen_first;
+ screen <= screen_last; screen++) {
+ struct temp_status tempd =
+ get_sct_for_screen(dpy, screen,
+ crtc_specified,
+ fdebug);
+ tempd.temp += temp.temp;
+ if (tempd.temp < TEMPERATURE_ZERO) {
+ fprintf(stderr,
+ "WARNING! Temperatures "
+ "below %d cannot be "
+ "displayed.\n",
+ TEMPERATURE_ZERO);
+ tempd.temp = TEMPERATURE_ZERO;
+ }
+ sct_for_screen(dpy, screen,
+ crtc_specified, tempd,
+ fdebug);
+ }
+ }
+ }
+ }
- XCloseDisplay(dpy);
+ XCloseDisplay(dpy);
- return EXIT_SUCCESS;
+ return EXIT_SUCCESS;
}
-