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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "config.h"
#include "color.h"
#include "iniparser/src/iniparser.h"
void
conf_destroy(config_t* conf) {
if(conf->iters) {
free(conf->iters);
}
if(conf->colors) {
free(conf->colors);
}
free(conf);
}
static int
parse_color(dictionary* ini, char* key, color_t* col) {
char r[3];
char g[3];
char b[3];
char* endptr;
char* s = iniparser_getstring(ini, key, "");
if(strlen(s) != 6) {
fprintf(stderr, "Config value '%s' is not a color or is missing.\n", key);
return 0;
}
memcpy(r, s, 2);
memcpy(g, s + 2, 2);
memcpy(b, s + 4, 2);
r[2] = '\0';
g[2] = '\0';
b[2] = '\0';
col->r = strtol(r, &endptr, 16);
if(*endptr != '\0') {
fprintf(stderr, "Config value '%s' is not a color.\n", key);
return 0;
}
col->g = strtol(g, &endptr, 16);
if(*endptr != '\0') {
fprintf(stderr, "Config value '%s' is not a color.\n", key);
return 0;
}
col->b = strtol(b, &endptr, 16);
if(*endptr != '\0') {
fprintf(stderr, "Config value '%s' is not a color.\n", key);
return 0;
}
return 1;
}
#define NAMEBUF_SIZE 32
static int
conf_get_int(dictionary* ini, char* key, int* val) {
if(!iniparser_find_entry(ini, key)) {
fprintf(stderr, "Missing config key: %s\n", key);
return 0;
}
*val = iniparser_getint(ini, key, -1);
if(*val <= 0) {
fprintf(stderr, "Value for key '%s' is invalid.\n", key);
return 0;
}
return 1;
}
static char*
conf_get_string(dictionary* ini, char* key, char* def) {
char* _s;
char* s;
size_t l;
_s = iniparser_getstring(ini, key, def);
l = strlen(_s) + 1;
if(!(s = malloc(sizeof(char) * l))) {
return NULL;
}
return strcpy(s, _s);
}
int
conf_load(char* path, config_t** conf) {
int i;
dictionary* ini = NULL;
char namebuf[NAMEBUF_SIZE];
int last_iter = 0;
if(!(*conf = malloc(sizeof(config_t)))) {
fputs("Could not allocate memory.\n", stderr);
goto failed;
}
(*conf)->iters = NULL;
(*conf)->colors = NULL;
(*conf)->statefile = NULL;
(*conf)->output = NULL;
if(!(ini = iniparser_load(path))) {
fputs("Could not parse ini file.\n", stderr);
goto failed;
}
if(
(!conf_get_int(ini, "nebula2:width", &((*conf)->width))) ||
(!conf_get_int(ini, "nebula2:height", &((*conf)->height))) ||
(!conf_get_int(ini, "nebula2:jobsize", &((*conf)->jobsize))) ||
(!conf_get_int(ini, "nebula2:jobs", &((*conf)->jobs))) ||
(!conf_get_int(ini, "nebula2:threads", &((*conf)->threads)))) {
goto failed;
}
if(!((*conf)->statefile = conf_get_string(ini, "nebula2:statefile", ""))) {
goto failed;
}
if(!((*conf)->output = conf_get_string(ini, "nebula2:output", ""))) {
goto failed;
}
for((*conf)->iters_n = 0;; ((*conf)->iters_n)++) {
if(snprintf(namebuf, NAMEBUF_SIZE, "nebula2:iter%d", (*conf)->iters_n) < 0) {
fputs("Error while counting iterX values.\n", stderr);
goto failed;
}
if(!iniparser_find_entry(ini, namebuf)) {
break;
}
}
if((*conf)->iters_n == 0) {
fputs("Need at least one iterX value.\n", stderr);
goto failed;
}
if(!((*conf)->iters = malloc(sizeof(int) * ((*conf)->iters_n)))) {
fputs("Could not allocate memory.\n", stderr);
goto failed;
}
if(!((*conf)->colors = malloc(sizeof(color_t) * ((*conf)->iters_n)))) {
fputs("Could not allocate memory.\n", stderr);
goto failed;
}
for(i = 0; i < (*conf)->iters_n; i++) {
if(snprintf(namebuf, NAMEBUF_SIZE, "nebula2:iter%d", i) < 0) {
fputs("Error while reading iterX values.\n", stderr);
goto failed;
}
if(!conf_get_int(ini, namebuf, &((*conf)->iters[i]))) {
goto failed;
}
if((*conf)->iters[i] <= last_iter) {
fputs("iterX values must be in ascending order.\n", stderr);
goto failed;
}
last_iter = (*conf)->iters[i];
if(snprintf(namebuf, NAMEBUF_SIZE, "nebula2:color%d", i) < 0) {
fputs("Error while reading colorX values.\n", stderr);
goto failed;
}
if(!parse_color(ini, namebuf, &((*conf)->colors[i]))) {
goto failed;
}
}
iniparser_freedict(ini);
return 1;
failed:
if(*conf) {
conf_destroy(*conf);
*conf = NULL;
}
if(ini) {
iniparser_freedict(ini);
}
return 0;
}
void
conf_print(config_t* conf) {
int i;
color_t col;
printf("width: %d\n", conf->width);
printf("height: %d\n", conf->height);
printf("jobsize: %d\n", conf->jobsize);
printf("jobs: %d\n", conf->jobs);
printf("threads: %d\n", conf->threads);
printf("statefile: %s\n", conf->statefile);
printf("output: %s\n", conf->output);
for(i = 0; i < conf->iters_n; i++) {
col = conf->colors[i];
printf("Iteration %d: %d, %02x%02x%02x\n", i, conf->iters[i], col.r, col.g, col.b);
}
}
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