From bcf4864bb76963059f8ca983103e9031adc719e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= <krh@bitplanet.net>
Date: Fri, 3 Aug 2012 15:29:08 -0400
Subject: [PATCH] simple-egl: Add help message

---
 clients/simple-egl.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/clients/simple-egl.c b/clients/simple-egl.c
index ef2f9b2b..c52c82ca 100644
--- a/clients/simple-egl.c
+++ b/clients/simple-egl.c
@@ -572,6 +572,17 @@ signal_int(int signum)
 	running = 0;
 }
 
+static void
+usage(int error_code)
+{
+	fprintf(stderr, "Usage: simple-egl [OPTIONS]\n\n"
+		"  -f\tRun in fullscreen mode\n"
+		"  -o\tCreate an opaque surface\n"
+		"  -h\tThis help text\n\n");
+
+	exit(error_code);
+}
+
 int
 main(int argc, char **argv)
 {
@@ -588,8 +599,12 @@ main(int argc, char **argv)
 	for (i = 1; i < argc; i++) {
 		if (strcmp("-f", argv[i]) == 0)
 			window.fullscreen = 1;
-		if (strcmp("-o", argv[i]) == 0)
-			alpha_size = 0;
+		else if (strcmp("-o", argv[i]) == 0)
+			window.opaque = 1;
+		else if (strcmp("-h", argv[i]) == 0)
+			usage(EXIT_SUCCESS);
+		else
+			usage(EXIT_FAILURE);
 	}
 
 	display.display = wl_display_connect(NULL);