diff options
Diffstat (limited to 'nebula2.c')
| -rw-r--r-- | nebula2.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/nebula2.c b/nebula2.c new file mode 100644 index 0000000..e22e255 --- /dev/null +++ b/nebula2.c @@ -0,0 +1,251 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "iniparser/src/iniparser.h" + +typedef struct { + int r, g, b; +} color_t; + +typedef struct { + int width, height; + int jobsize, jobs, procn; + + char* statefile; + char* output; + + int iters_n; + int* iters; + color_t* colors; +} config_t; + +void +usage(void) {} + +void +conf_destroy(config_t* conf) { + if(conf->iters) { + free(conf->iters); + } + if(conf->colors) { + free(conf->colors); + } + free(conf); +} + +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 + +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; +} + +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]; + + 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:procn", &((*conf)->procn)))) { + 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(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("procn: %d\n", conf->procn); + 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); + } +} + +int +main(int argc, char** argv) { + int rv = 1; + config_t* conf = NULL; + + if(argc < 2) { + usage(); + goto tidyup; + } + + if(!conf_load(argv[1], &conf)) { + goto tidyup; + } + + conf_print(conf); + + /*nebula2(conf);*/ + + rv = 0; /* All OK, we return with no error. */ +tidyup: + if(conf) { + conf_destroy(conf); + } + + return rv; +} |