Add an option to add fake capture cards, for easier standalone theme testing.

[nageru] / flags.cpp

diff --git a/flags.cpp b/flags.cpp
index 33d47b9d481e23de79d5c56d10b1624475c2b96a..580b42123e4f08d568f7f33bd12a003eef92ceb7 100644 (file)
--- a/flags.cpp
+++ b/flags.cpp
@@ -16,7 +16,8 @@ void usage()
        fprintf(stderr, "Usage: nageru [OPTION]...\n");
        fprintf(stderr, "\n");
        fprintf(stderr, "  -h, --help                      print usage information\n");
-       fprintf(stderr, "  -c, --num-cards                 set number of input cards (default 2)\n");
+       fprintf(stderr, "  -c, --num-cards                 set number of input cards, including fake cards (default 2)\n");
+       fprintf(stderr, "  -C, --num-fake-cards            set number of fake cards (default 0)\n");
        fprintf(stderr, "  -t, --theme=FILE                choose theme (default theme.lua)\n");
        fprintf(stderr, "  -v, --va-display=SPEC           VA-API device for H.264 encoding\n");
        fprintf(stderr, "                                    ($DISPLAY spec or /dev/dri/render* path)\n");
@@ -54,6 +55,7 @@ void parse_flags(int argc, char * const argv[])
        static const option long_options[] = {
                { "help", no_argument, 0, 'h' },
                { "num-cards", required_argument, 0, 'c' },
+               { "num-fake-cards", required_argument, 0, 'C' },
                { "theme", required_argument, 0, 't' },
                { "map-signal", required_argument, 0, 'm' },
                { "va-display", required_argument, 0, 1000 },
@@ -78,7 +80,7 @@ void parse_flags(int argc, char * const argv[])
        };
        for ( ;; ) {
                int option_index = 0;
-               int c = getopt_long(argc, argv, "c:t:v:m:", long_options, &option_index);
+               int c = getopt_long(argc, argv, "c:C:t:v:m:", long_options, &option_index);
 
                if (c == -1) {
                        break;
@@ -87,6 +89,9 @@ void parse_flags(int argc, char * const argv[])
                case 'c':
                        global_flags.num_cards = atoi(optarg);
                        break;
+               case 'C':
+                       global_flags.num_fake_cards = atoi(optarg);
+                       break;
                case 't':
                        global_flags.theme_filename = optarg;
                        break;
@@ -177,6 +182,18 @@ void parse_flags(int argc, char * const argv[])
                fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
                exit(1);
        }
+       if (global_flags.num_fake_cards > global_flags.num_cards) {
+               fprintf(stderr, "ERROR: More fake cards then total cards makes no sense\n");
+               exit(1);
+       }
+       if (global_flags.num_cards <= 0) {
+               fprintf(stderr, "ERROR: --num-cards must be at least 1\n");
+               exit(1);
+       }
+       if (global_flags.num_fake_cards < 0) {
+               fprintf(stderr, "ERROR: --num-fake-cards cannot be negative\n");
+               exit(1);
+       }
        if (global_flags.x264_speedcontrol) {
                if (!global_flags.x264_preset.empty() && global_flags.x264_preset != "faster") {
                        fprintf(stderr, "WARNING: --x264-preset is overridden by --x264-speedcontrol (implicitly uses \"faster\" as base preset)\n");