rgbtemp/src/rgbtemp.c
2021-05-28 12:09:46 -05:00

135 lines
4.2 KiB
C

#include <stdio.h>
#include <stdlib.h> /* For exit() function */
#include <unistd.h> /* For sleep() function */
#include <signal.h>
#include <string.h>
unsigned int sleep(unsigned int seconds);
#define FALSE 0
#define TRUE 1
#define SLEEP 0.1 /* Sleeping time in seconds */
#define BLACK "00000000 00000000 00000000" /* off */
#define WHITE "FFFFFFFF FFFFFFFF FFFFFFFF" /* >20º */
#define CYAN "00000000 FFFFFFFF FFFFFFFF" /* >30º */
#define BLUE "00000000 00000000 FFFFFFFF" /* >40º */
#define GREEN "00000000 FFFFFFFF 00000000" /* >50º */
#define YELLOW "FFFFFFFF FFFFFFFF 00000000" /* >60º */
#define ORANGE "FFFFFFFF 33333333 00000000" /* >70º */
#define RED "FFFFFFFF 00000000 00000000" /* >80º */
#define PINK "FFFFFFFF 00000000 FFFFFFFF" /* >90º */
/* #define DEF_PATH "/sys/class/hwmon/hwmon1/temp3_input" */
int running = TRUE;
void set_color(int celsius) {
/* printf("Los grados son: %i\n", celsius); */
int exitstatus = 0;
char s[50];
if (celsius >= 90000) { snprintf(s, 50, "openrgb -c FF00%X", (celsius-90000)*256/10000); exitstatus = system(s); } // PINK
else if (celsius >= 80000) { snprintf(s, 50, "openrgb -c FF%X00", (90000-celsius)*64/10000); exitstatus = system(s); } // RED
else if (celsius >= 70000) { snprintf(s, 50, "openrgb -c FF%X00", (80000-celsius)*192/10000); exitstatus = system(s); } // ORANGE
else if (celsius >= 60000) { snprintf(s, 50, "openrgb -c %XFF00", (celsius-60000)*256/10000); exitstatus = system(s); } // YELLOW
else if (celsius >= 50000) { snprintf(s, 50, "openrgb -c 00%X%X", (celsius-50000)*256/10000, (60000-celsius)*256/10000); exitstatus = system(s); } // GREEN
else if (celsius >= 40000) { snprintf(s, 50, "openrgb -c 00%XFF", (50000-celsius)*256/10000); exitstatus = system(s); } // BLUE
else if (celsius >= 30000) { snprintf(s, 50, "openrgb -c %XFFFF", (40000-celsius)*256/10000); exitstatus = system(s); } // CYAN
else if (celsius >= 20000) { exitstatus = system("openrgb -c FFFFFF"); }
else { exitstatus = system("openrgb -c 000000"); }
if (exitstatus) running = FALSE;
}
void sig_handler(int signo)
{
if (signo == SIGUSR1) {
fprintf(stderr, "\nINFO: Received SIGUSR1\n");
running = FALSE;
}
else if (signo == SIGTERM) {
fprintf(stderr, "\nINFO: Received SIGTERM\n");
running = FALSE;
}
else if (signo == SIGINT) {
fprintf(stderr, "\nINFO: Received SIGINT\n");
running = FALSE;
}
else if (signo == SIGKILL)
fprintf(stderr, "\nINFO: Received SIGKILL\n");
else if (signo == SIGSTOP)
fprintf(stderr, "\nINFO: Received SIGSTOP\n");
else
fprintf(stderr, "\nINFO: Received: %d", signo);
}
int main(int argc, char *argv[]) {
int i;
int cleanexit;
int fscanf_ok;
char c[8];
char fileaddr[255];
const char* env = getenv("RGBTEMP");
FILE *fptr;
switch (argc)
{
case 1:
if (env != NULL) strcpy(fileaddr, env);
else
{
fprintf(stderr, "RGBTEMP environment variable is empty.\n"
"Please, supply a file in such variable or by command line.\n"
"Exiting.\n");
exit(2);
}
break;
case 2:
strcpy(fileaddr, argv[1]);
break;
default:
fprintf(stderr, "\nWarning: incorrect number of args: %d.", argc);
break;
}
if (signal(SIGUSR1, sig_handler) == SIG_ERR)
fprintf(stderr, "WARNING: Can't catch SIGUSR1\n");
if (signal(SIGTERM, sig_handler) == SIG_ERR)
fprintf(stderr, "WARNING: Can't catch SIGTERM\n");
if (signal(SIGINT, sig_handler) == SIG_ERR)
fprintf(stderr, "WARNING: Can't catch SIGINT\n");
/*if (signal(SIGKILL, sig_handler) == SIG_ERR)
fprintf(stderr, "%s", "WARNING: Can't catch SIGKILL\n");
if (signal(SIGSTOP, sig_handler) == SIG_ERR)
fprintf(stderr, "%s", "WARNING: Can't catch SIGSTOP\n"); */
while (running) {
if ((fptr = fopen(fileaddr, "r")) == NULL) {
fprintf(stderr, "ERROR: Opening file %s", fileaddr);
/* Program exits if file pointer returns NULL. */
exit(1);
}
/* Reads text until newline is encountered */
fscanf_ok = fscanf(fptr, "%[^\n]", c);
fclose(fptr);
system("openrgb -m Static");
if (!fscanf_ok) { return 0; }
i = atoi(c);
set_color(i);
sleep(SLEEP);
}
/* system("msi-rgb --disable --base-port 4e " WHITE); */
cleanexit = system("openrgb -m Off"); /* No pulsing */
if (cleanexit) { return 1; }
return 0;
}