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beta argp code

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This commit is contained in:
Lexxy Fox 2023-11-01 18:27:12 -05:00
parent 086060b9f5
commit bf9578a97a
2 changed files with 40 additions and 3 deletions
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4
Makefile
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@ -1,3 +1,6 @@
# Options (e.g. `CFLAGS=-DUSE_ARGP make`)
# USE_ARGP: use `argp` for argument parsing.
VERSION ?= 9.0.1
prefix ?= /usr/local
@ -37,6 +40,7 @@ WFLAGS := \
-Wextra \
-Wformat-security \
-Wno-ignored-optimization-argument \
-Wno-missing-field-initializers \
-Wno-unknown-warning-option \
-Wsuggest-attribute=const \
-Wsuggest-attribute=format \

39
glxgears.c
View File

@ -12,6 +12,9 @@
* Other modifications by Lexxy Fox.
*/
#ifdef USE_ARGP
#include <argp.h>
#endif
#include <GL/gl.h>
#include <math.h>
#include <stdio.h>
@ -364,25 +367,55 @@ static void visible(int vis) {
static char *window_title = "Gears";
static void parse_args(int argc, char *argv[]) {
#ifdef USE_ARGP
static const struct argp_option options[] = {
{"info", 256, 0, 0, "Display OpenGL renderer information"},
{"exit", 257, 0, 0, "Automatically exit after 30 seconds"},
{"noanim", 258, 0, 0, "Don't start animation"},
{"title", 259, "title", 0, "Set window title (defaults to \"Gears\")"},
{0}};
static error_t parse_opt(int key, char *val, struct argp_state *) {
switch (key) {
case 256:
print_glinfo = GL_TRUE;
break;
case 257:
autoexit = 30;
break;
case 258:
Animate = GL_FALSE;
break;
case 259:
window_title = val;
break;
}
return 0;
}
static const struct argp argp = {
options, parse_opt, 0, "Universal rights are universal."};
#else
static void parse_args(int argc, char *argv[]) {
for (GLint i = 1; i < argc; i++)
if (strcmp(argv[i], "-exit") == 0) {
autoexit = 30;
printf("Auto Exit after %i seconds.\n", autoexit);
printf("Auto exiting after %i seconds.\n", autoexit);
fflush(stdout);
} else if (strcmp(argv[i], "-info") == 0)
print_glinfo = GL_TRUE;
else if (strcmp(argv[i], "-noanim") == 0)
Animate = GL_FALSE;
#endif
}
#endif
int main(int argc, char *argv[]) {
glutInit(&argc, argv);
#ifdef USE_ARGP
argp_parse(&argp, argc, argv, ARGP_LONG_ONLY, 0, 0);
#else
parse_args(argc, argv);
#endif
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
win = glutCreateWindow(window_title);
init_scene();