Files
forge-steel/src/args.c
T

231 lines
7.7 KiB
C

#include <bsd/string.h>
#include <limits.h>
#include <log.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "types.h"
#include "args.h"
#include "config.h"
#include "string.h"
static void print_help(int status_code) {
puts(
PACKAGE
" " VERSION "\n\n"
"usage: " PACKAGE " "
"[-h] "
"[-v] "
"[-p=PROJECT_PATH] "
"[-c=CFG_FILE] "
"[-hr] "
"[-s=SCREEN] "
"[-m=SCREEN] "
"[-mo] "
"[-w] "
"[-t=TEMPO] "
"[-d] "
"[-ar / -nar] "
"[-arc=CYCLES] "
#ifdef VIDEO_IN
"[-vi=FILE] "
"[-vs=SIZE] "
#endif /* VIDEO_IN */
"[-is=SIZE] "
"[-ls / -nls] "
"[-ss / -nss] "
"[-tm] "
"[-tf] "
"\n\n"
"Fusion Of Real-time Generative Effects.\n\n"
"options:\n"
" -h, --help show this help message and exit\n"
" -v, --version print version\n"
" -p, --project forge project directory (default: " DATADIR
"/default)\n"
" -c, --config config file name (default: "
"forge_project.cfg)\n"
" -hr, --hot-reload hot reload of shaders scripts\n"
" -s, --screen output screen number (default: primary)\n"
" -m, --monitor monitor screen number (default: none)\n"
" -mo, --monitor-only no output screen\n"
" -w, --windowed not fullscreen\n"
" -t, --tempo base tempo (default: 60)\n"
" -d, --demo demonstration mode (assume "
"--no-save-state, --no-load-state, --auto-random)\n"
" -ar, --auto-random randomize state every cycle (4 beats)\n"
" -nar, --no-auto-random do not randomize state (default)\n"
" -arc, --auto-random-cycle auto random cycle length (default: 4)\n"
#ifdef VIDEO_IN
" -vi, --video-in path to video capture device (multiple "
"allowed)\n"
" -vs, --video-size video capture desired height (default: "
"internal texture height)\n"
#endif /* VIDEO_IN */
" -is, --internal-size internal texture height (default: 720)\n"
" -ls, --load-state load saved state (default)\n"
" -nls, --no-load-state do not load saved state\n"
" -ss, --save-state save state (default)\n"
" -nss, --no-save-state do not save state\n"
" -tm, --trace-midi print midi code and values\n"
" -tf, --trace-fps print fps status of subsystems\n");
exit(status_code);
}
static void invalid_arg(const char *arg) {
log_error("invalid argument: '%s'", arg);
print_help(EXIT_FAILURE);
}
static void invalid_value(const char *arg, const char *value) {
log_error("invalid value for argument '%s': '%s'", arg, value);
print_help(EXIT_FAILURE);
}
static bool is_arg(const char *arg, const char *ref) {
return strcoll(arg, ref) == 0;
}
static const char *split_arg_value(char *arg) {
char *rest;
strtok_r(arg, "=", &rest);
return rest;
}
static unsigned int parse_uint(const char *arg, const char *value) {
unsigned long long tmp_value;
if (!string_is_number(value)) {
invalid_value(arg, value);
}
tmp_value = (unsigned long long)atoll(value);
if (tmp_value >= UINT_MAX) {
invalid_value(arg, value);
}
return (unsigned int)tmp_value;
}
void args_parse(Parameters *params, int argc, char **argv) {
char *arg;
const char *value;
strlcpy(params->project_path, DATADIR "/default", STR_LEN);
strlcpy(params->config_file, "forge_project.cfg", STR_LEN);
params->hot_reload = false;
params->output = true;
params->output_screen = 0;
params->monitor = false;
params->monitor_screen = 0;
params->windowed = false;
params->base_tempo = 60.0f;
params->demo = false;
params->auto_random = false;
params->auto_random_cycle = 4;
params->video_in.length = 0;
params->video_size = 0;
params->internal_size = 720;
params->load_state = true;
params->save_state = true;
params->trace_midi = false;
params->trace_fps = false;
for (int i = 1; i < argc; i++) {
arg = argv[i];
value = split_arg_value(arg);
if (is_arg(arg, "-h") || is_arg(arg, "--help")) {
print_help(EXIT_SUCCESS);
} else if (is_arg(arg, "-v") || is_arg(arg, "--version")) {
puts(PACKAGE " " VERSION);
exit(EXIT_SUCCESS);
} else if (is_arg(arg, "-p") || is_arg(arg, "--project")) {
strlcpy(params->project_path, value, STR_LEN);
} else if (is_arg(arg, "-c") || is_arg(arg, "--config")) {
strlcpy(params->config_file, value, STR_LEN);
} else if (is_arg(arg, "-hr") || is_arg(arg, "--hot-reload")) {
params->hot_reload = true;
} else if (is_arg(arg, "-s") || is_arg(arg, "--screen")) {
params->output_screen = parse_uint(arg, value);
} else if (is_arg(arg, "-m") || is_arg(arg, "--monitor")) {
params->monitor = true;
params->monitor_screen = parse_uint(arg, value);
} else if (is_arg(arg, "-mo") || is_arg(arg, "--monitor-only")) {
params->output = false;
params->monitor = true;
} else if (is_arg(arg, "-w") || is_arg(arg, "--windowed")) {
params->windowed = true;
} else if (is_arg(arg, "-t") || is_arg(arg, "--tempo")) {
params->base_tempo = (float)parse_uint(arg, value);
} else if (is_arg(arg, "-d") || is_arg(arg, "--demo")) {
params->demo = true;
params->load_state = false;
params->save_state = false;
params->auto_random = true;
} else if (is_arg(arg, "-ar") || is_arg(arg, "--auto-random")) {
params->auto_random = true;
} else if (is_arg(arg, "-nar") || is_arg(arg, "--no-auto-random")) {
params->auto_random = false;
} else if (is_arg(arg, "-arc") || is_arg(arg, "--auto-random-cycle")) {
params->auto_random_cycle = parse_uint(arg, value);
if (params->auto_random_cycle == 0) {
invalid_value(arg, value);
}
} else if (is_arg(arg, "-vi") || is_arg(arg, "--video-in")) {
#ifdef VIDEO_IN
if (params->video_in.length == MAX_VIDEO) {
log_error("maximum video input reached");
exit(EXIT_FAILURE);
}
strlcpy(params->video_in.values[params->video_in.length++], value,
STR_LEN);
#else
invalid_arg(arg);
#endif /* VIDEO_IN */
} else if (is_arg(arg, "-vs") || is_arg(arg, "--video-size")) {
#ifdef VIDEO_IN
params->video_size = parse_uint(arg, value);
if (params->video_size == 0) {
invalid_value(arg, value);
}
#else
invalid_arg(arg);
#endif /* VIDEO_IN */
} else if (is_arg(arg, "-is") || is_arg(arg, "--internal-size")) {
params->internal_size = parse_uint(arg, value);
if (params->internal_size == 0) {
invalid_value(arg, value);
}
} else if (is_arg(arg, "-ls") || is_arg(arg, "--load-state")) {
params->load_state = true;
} else if (is_arg(arg, "-nls") || is_arg(arg, "--no-load-state")) {
params->load_state = false;
} else if (is_arg(arg, "-ss") || is_arg(arg, "--save-state")) {
params->save_state = true;
} else if (is_arg(arg, "-nss") || is_arg(arg, "--no-save-state")) {
params->save_state = false;
} else if (is_arg(arg, "-tm") || is_arg(arg, "--trace-midi")) {
params->trace_midi = true;
} else if (is_arg(arg, "-tf") || is_arg(arg, "--trace-fps")) {
params->trace_fps = true;
} else {
invalid_arg(arg);
}
}
if (params->monitor && params->output &&
params->monitor_screen == params->output_screen && !params->windowed) {
log_error("monitor screen cannot be the same as output screen");
exit(EXIT_FAILURE);
}
if (params->video_size == 0) {
params->video_size = params->internal_size;
}
}