102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
#include "./args.h"
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#include <assert.h>
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#include <inttypes.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "util/parsarg/parsarg.h"
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#include "core/loscene/param.h"
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void app_args_parse(app_args_t* args, int argc, char** argv) {
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assert(args != NULL);
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assert(argc > 0);
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parsarg_t pa;
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parsarg_initialize(&pa, argc-1, argv+1);
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while (!parsarg_finished(&pa)) {
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size_t nlen;
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char* n = parsarg_pop_name(&pa, &nlen);
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char* v;
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parsarg_pop_value(&pa, &v);
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if (n == NULL && v == NULL) continue;
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bool ok = false;
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# define bool_(name, var) do { \
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if (strncmp(name, n, nlen) == 0 && name[nlen] == 0) { \
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if (v == NULL) { \
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var = true; \
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ok = true; \
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} else { \
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fprintf(stderr, "option '"name"' cannot take any values"); \
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abort(); \
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} \
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} \
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} while (0)
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# define int_(name, var, min, max) do { \
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if (strncmp(name, n, nlen) == 0 && name[nlen] == 0) { \
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char* end; \
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const intmax_t i = strtoimax(v, &end, 0); \
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if (*end == 0 && min <= i && i < max) { \
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var = i; \
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ok = true; \
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} else { \
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fprintf(stderr, \
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"option '"name"' requires " \
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"an integer value (%"PRIdMAX"~%"PRIdMAX")\n", \
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(intmax_t) min, (intmax_t) max); \
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abort(); \
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} \
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continue; \
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} \
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} while (0)
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/* ---- scene parameters ---- */
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int_("width", args->scene.width, 640, INT32_MAX);
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int_("height", args->scene.height, 360, INT32_MAX);
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int_("dpi-x", args->scene.dpi.x, 1, INT32_MAX);
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int_("dpi-y", args->scene.dpi.y, 1, INT32_MAX);
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int_("max-msaa", args->scene.max_msaa, 1, INT32_MAX);
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int_("brightness", args->scene.brightness, 0, 2000);
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bool_("disable-heavy-backwall",
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args->scene.environment.disable_heavy_backwall);
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bool_("disable-heavy-fog",
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args->scene.environment.disable_heavy_fog);
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bool_("skip-title", args->scene.skip_title);
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/* ---- app parameters ---- */
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int_("max-fps", args->max_fps, 1, INT32_MAX);
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bool_("override-dpi", args->override_dpi);
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bool_("force-window", args->force_window);
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bool_("force-desktop-fullscreen", args->force_desktop_fullscreen);
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bool_("force-fullscreen", args->force_fullscreen);
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# undef int_
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# undef bool_
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if (!ok) {
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if (n == NULL) {
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fprintf(stderr, "missing option name for the value '%s'\n", v);
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} else {
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fprintf(stderr, "unknown option '%.*s'\n", (int) nlen, n);
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}
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abort();
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}
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}
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parsarg_deinitialize(&pa);
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}
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