X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/695126e3e077329a70277805f47c5bc071172c28..e2c8afa72334152016d1344217839abe54718a77:/examples/picoproj.c

diff --git a/examples/picoproj.c b/examples/picoproj.c
index 105169c..e18cc7d 100644
--- a/examples/picoproj.c
+++ b/examples/picoproj.c
@@ -74,6 +74,8 @@ int main(int argc, char *argv[])
 	while ((opt = getopt(argc, argv, "f:F:l:p:W:H:h")) != -1) {
 		switch (opt) {
 		case 'f':
+			if (filename[0] != '\0')
+				fprintf(stderr, "Warning: image file already specified\n");
 			strncpy(filename, optarg, FILENAME_MAX);
 			break;
 		case 'F':
@@ -155,7 +157,7 @@ int main(int argc, char *argv[])
 	}
 	size = st.st_size;
 
-	image = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, image_fd, 0);
+	image = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, image_fd, 0);
 	if (image == NULL) {
 		perror("mmap");
 		exit_code = EXIT_FAILURE;
@@ -209,6 +211,10 @@ int main(int argc, char *argv[])
 		goto cleanup;
 	}
 
+	if ((unsigned int)width > device_info.native_width ||
+	    (unsigned int)height > device_info.native_height)
+		fprintf(stderr, "WARNING: image not fitting the native resolution, it may be displayed wrongly!\n");
+
 	ret = am7xxx_send_image(dev, format, width, height, image, size);
 	if (ret < 0) {
 		perror("am7xxx_send_image");