Add a simple helper program, glaze

[glaze] / glaze.c

diff --git a/glaze.c b/glaze.c
new file mode 100644 (file)
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--- /dev/null
+++ b/glaze.c
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+/* Copyright © 2013, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <limits.h>
+
+#include <glaze.h>
+
+static void
+usage (void)
+{
+       printf ("Usage: glaze --wrapper=<wrapper> <program> [program args...]\n"
+               "\n"
+               "Execute <program> with <wrapper> providing alternate OpenGL functions.\n");
+}
+
+enum {
+       WRAPPER_OPT = CHAR_MAX + 1
+};
+
+int
+main (int argc, char *argv[])
+{
+       const char *wrapper = NULL;
+       int opt;
+
+       const char *short_options="h";
+       const struct option long_options[] = {
+               {"help", no_argument, 0, 'h'},
+               {"wrapper", required_argument, 0, WRAPPER_OPT},
+               {0, 0, 0, 0}
+       };
+
+       while (1)
+       {
+               opt = getopt_long (argc, argv, short_options, long_options, NULL);
+               if (opt == -1)
+                       break;
+
+               switch (opt) {
+               case 'h':
+                       usage ();
+                       return 0;
+               case WRAPPER_OPT:
+                       wrapper = optarg;
+                       break;
+               default:
+                       fprintf (stderr, "Internal error: "
+                                "unexpected getopt value: %d\n", opt);
+                       exit (1);
+               }
+       }
+
+       if (optind >= argc) {
+               fprintf (stderr, "Error: No program name provided, "
+                        "see (glaze --help)\n");
+               exit (1);
+       }
+
+       glaze_execute (argc - optind, &argv[optind], wrapper);
+
+       /* If glaze_execute returns then something went wrong. */
+       return 1;
+}