git.sesse.net Git - nageru/blob - flags.cpp

   1 #include "flags.h"
   2
   3 #include <getopt.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 Flags global_flags;
   8
   9 void usage()
  10 {
  11         fprintf(stderr, "Usage: nageru [OPTION]...\n");
  12         fprintf(stderr, "\n");
  13         fprintf(stderr, "  -h, --help                      print usage information\n");
  14         fprintf(stderr, "  -c, --num-cards                 set number of input cards (default 2)\n");
  15         fprintf(stderr, "  -t, --theme=FILE                choose theme (default theme.lua)\n");
  16         fprintf(stderr, "  -v, --va-display=SPEC           VA-API device for H.264 encoding\n");
  17         fprintf(stderr, "                                    ($DISPLAY spec or /dev/dri/render* path)\n");
  18         fprintf(stderr, "      --http-uncompressed-video   send uncompressed NV12 video to HTTP clients\n");
  19         fprintf(stderr, "      --flat-audio                start with most audio processing turned off\n");
  20         fprintf(stderr, "      --no-flush-pbos             do not explicitly signal texture data uploads\n");
  21         fprintf(stderr, "                                    (will give display corruption, but makes it\n");
  22         fprintf(stderr, "                                    possible to run with apitrace in real time)\n");
  23 }
  24
  25 void parse_flags(int argc, char * const argv[])
  26 {
  27         static const option long_options[] = {
  28                 { "help", no_argument, 0, 'h' },
  29                 { "num-cards", required_argument, 0, 'c' },
  30                 { "theme", required_argument, 0, 't' },
  31                 { "va-display", required_argument, 0, 1000 },
  32                 { "http-uncompressed-video", no_argument, 0, 1001 },
  33                 { "flat-audio", no_argument, 0, 1002 },
  34                 { "no-flush-pbos", no_argument, 0, 1003 },
  35                 { 0, 0, 0, 0 }
  36         };
  37         for ( ;; ) {
  38                 int option_index = 0;
  39                 int c = getopt_long(argc, argv, "c:t:", long_options, &option_index);
  40
  41                 if (c == -1) {
  42                         break;
  43                 }
  44                 switch (c) {
  45                 case 'c':
  46                         global_flags.num_cards = atoi(optarg);
  47                         break;
  48                 case 't':
  49                         global_flags.theme_filename = optarg;
  50                         break;
  51                 case 1000:
  52                         global_flags.va_display = optarg;
  53                         break;
  54                 case 1001:
  55                         global_flags.uncompressed_video_to_http = true;
  56                         break;
  57                 case 1002:
  58                         global_flags.flat_audio = true;
  59                         break;
  60                 case 1003:
  61                         global_flags.flush_pbos = false;
  62                         break;
  63                 case 'h':
  64                         usage();
  65                         exit(0);
  66                 default:
  67                         fprintf(stderr, "Unknown option '%s'\n", argv[option_index]);
  68                         fprintf(stderr, "\n");
  69                         usage();
  70                         exit(1);
  71                 }
  72         }
  73 }