From b3cc25c31d6bfc95aa1bd8a63c85f0b5cab60d11 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ospite@studenti.unina.it>
Date: Thu, 21 Jun 2012 10:32:32 +0200
Subject: [PATCH] am7xxx-play: support setting the zoom mode

---
 doc/man/am7xxx-play.1.txt |  3 +++
 examples/am7xxx-play.c    | 30 +++++++++++++++++++++++++++++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/doc/man/am7xxx-play.1.txt b/doc/man/am7xxx-play.1.txt
index 5054da4..193835f 100644
--- a/doc/man/am7xxx-play.1.txt
+++ b/doc/man/am7xxx-play.1.txt
@@ -58,6 +58,9 @@ EXAMPLE:
     WARNING: Level 2 and greater require the master AND
              the slave connector to be plugged in.
 
+*-z* '<zoom mode>'::
+    the display zoom mode, between 0 (original) and 3 (test)
+
 *-h*::
     this help message
 
diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
index 324ed89..af15949 100644
--- a/examples/am7xxx-play.c
+++ b/examples/am7xxx-play.c
@@ -596,6 +596,8 @@ static void usage(char *name)
 	printf("\t-l <log level>\t\tthe verbosity level of libam7xxx output (0-5)\n");
 	printf("\t-p <power level>\tpower level of device, between %x (off) and %x (maximum)\n", AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
 	printf("\t\t\t\tWARNING: Level 2 and greater require the master AND\n\t\t\t\t\t the slave connector to be plugged in.\n");
+	printf("\t-z <zoom mode>\t\tthe display zoom mode, between %d (original) and %d (test)\n",
+	       AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
 	printf("\t-h \t\t\tthis help message\n");
 	printf("\n\nEXAMPLES OF USE:\n");
 	printf("\t%s -f x11grab -i :0.0 -o video_size=800x480\n", name);
@@ -619,11 +621,12 @@ int main(int argc, char *argv[])
 	unsigned int quality = 95;
 	int log_level = AM7XXX_LOG_INFO;
 	am7xxx_power_mode power_mode = AM7XXX_POWER_LOW;
+	am7xxx_zoom_mode zoom = AM7XXX_ZOOM_ORIGINAL;
 	int format = AM7XXX_IMAGE_FORMAT_JPEG;
 	am7xxx_context *ctx;
 	am7xxx_device *dev;
 
-	while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:p:h")) != -1) {
+	while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:p:z:h")) != -1) {
 		switch (opt) {
 		case 'f':
 			input_format_string = strdup(optarg);
@@ -723,6 +726,21 @@ int main(int argc, char *argv[])
 				goto out;
 			}
 			break;
+		case 'z':
+			zoom = atoi(optarg);
+			switch(zoom) {
+			case AM7XXX_ZOOM_ORIGINAL:
+			case AM7XXX_ZOOM_H:
+			case AM7XXX_ZOOM_H_V:
+			case AM7XXX_ZOOM_TEST:
+				fprintf(stdout, "Zoom: %d\n", zoom);
+				break;
+			default:
+				fprintf(stderr, "Invalid zoom mode value, must be between %d and %d\n",
+					AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
+				exit(EXIT_FAILURE);
+			}
+			break;
 		case 'h':
 			usage(argv[0]);
 			ret = 0;
@@ -782,12 +800,22 @@ int main(int argc, char *argv[])
 		goto cleanup;
 	}
 
+	ret = am7xxx_set_zoom_mode(dev, zoom);
+	if (ret < 0) {
+		perror("am7xxx_set_zoom_mode");
+		goto cleanup;
+	}
+
 	ret = am7xxx_set_power_mode(dev, power_mode);
 	if (ret < 0) {
 		perror("am7xxx_set_power_mode");
 		goto cleanup;
 	}
 
+	/* When setting AM7XXX_ZOOM_TEST don't display the actual image */
+	if (zoom == AM7XXX_ZOOM_TEST)
+		goto cleanup;
+
 	ret = am7xxx_play(input_format_string,
 			  &options,
 			  input_path,
-- 
2.1.4