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Proper command line parsing

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This commit is contained in:
Peter De Wachter 2014-05-03 23:09:17 +02:00
parent 8b94f07a53
commit a635262f75
1 changed files with 37 additions and 22 deletions
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59
src/sdl-main.c
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@ -4,6 +4,7 @@
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <getopt.h>
#include <SDL.h>
#include "risc.h"
#include "disk.h"
@ -53,41 +54,55 @@ static int best_display(const SDL_Rect *rect) {
return result;
}
static struct option long_options[] = {
{ "fullscreen", no_argument, NULL, 'f' },
{ "size", required_argument, NULL, 's' },
{ "serial-fd", required_argument, NULL, 'F' },
{ NULL }
};
int main (int argc, char *argv[]) {
struct RISC *risc = risc_new();
risc_set_serial(risc, &pclink);
risc_set_clipboard(risc, &sdl_clipboard);
bool fullscreen = false;
SDL_Rect risc_rect = {
.w = RISC_FRAMEBUFFER_WIDTH,
.h = RISC_FRAMEBUFFER_HEIGHT
};
struct RISC *risc = risc_new();
risc_set_serial(risc, &pclink);
//risc_set_serial(risc, raw_serial_new(3, 4));
risc_set_clipboard(risc, &sdl_clipboard);
while (argc > 1 && argv[1][0] == '-') {
if (strcmp(argv[1], "--fullscreen") == 0) {
fullscreen = true;
} else if (strcmp(argv[1], "--size") == 0 && argc > 2) {
if (sscanf(argv[2], "%dx%d", &risc_rect.w, &risc_rect.h) != 2 ||
clamp(risc_rect.h, 32, RISC_FRAMEBUFFER_HEIGHT) != risc_rect.h ||
clamp(risc_rect.w, 32, RISC_FRAMEBUFFER_WIDTH) != risc_rect.w) {
int opt;
while ((opt = getopt_long(argc, argv, "fS:F:", long_options, NULL)) != -1) {
switch (opt) {
case 'f': {
fullscreen = true;
break;
}
case 's': {
int w, h;
if (sscanf(optarg, "%dx%d", &w, &h) != 2) {
usage();
}
risc_rect.w = clamp(w, 32, RISC_FRAMEBUFFER_WIDTH) & ~31;
risc_rect.h = clamp(h, 32, RISC_FRAMEBUFFER_HEIGHT);
risc_rect.y = RISC_FRAMEBUFFER_HEIGHT - risc_rect.h;
risc_screen_size_hack(risc, risc_rect.w, risc_rect.h);
break;
}
case 'F': {
risc_set_serial(risc, raw_serial_new(atoi(optarg), atoi(optarg) + 1));
break;
}
default: {
usage();
}
risc_rect.w &= ~31;
risc_rect.y = RISC_FRAMEBUFFER_HEIGHT - risc_rect.h;
risc_screen_size_hack(risc, risc_rect.w, risc_rect.h);
argc--; argv++;
} else {
usage();
}
argc--; argv++;
}
if (argc != 2) {
if (optind != argc - 1) {
usage();
}
risc_set_spi(risc, 1, disk_new(argv[1]));
risc_set_spi(risc, 1, disk_new(argv[optind]));
sdl_error_if(SDL_Init(SDL_INIT_VIDEO) != 0, "Unable to initialize SDL");
atexit(SDL_Quit);