picoproj: support setting the zoom mode

diff --git a/doc/man/picoproj.1.txt b/doc/man/picoproj.1.txt
index ce56f0e..309402c 100644 (file)
--- a/doc/man/picoproj.1.txt
+++ b/doc/man/picoproj.1.txt
@@ -42,6 +42,9 @@ OPTIONS
     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)
+
 *-W* '<image width>'::
     the width of the image to upload
 

diff --git a/examples/picoproj.c b/examples/picoproj.c
index 8503612..b643918 100644 (file)
--- a/examples/picoproj.c
+++ b/examples/picoproj.c
@@ -43,6 +43,8 @@ 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-W <image width>\tthe width of the image to upload\n");
        printf("\t-H <image height>\tthe height of the image to upload\n");
        printf("\t-h \t\t\tthis help message\n");
@@ -63,6 +65,7 @@ int main(int argc, char *argv[])
        am7xxx_device *dev;
        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;
        int width = 800;
        int height = 480;
@@ -70,7 +73,7 @@ int main(int argc, char *argv[])
        unsigned int size;
        am7xxx_device_info device_info;
 
-       while ((opt = getopt(argc, argv, "f:F:l:p:W:H:h")) != -1) {
+       while ((opt = getopt(argc, argv, "f:F:l:p:z:W:H:h")) != -1) {
                switch (opt) {
                case 'f':
                        if (filename[0] != '\0')
@@ -113,6 +116,21 @@ int main(int argc, char *argv[])
                                exit(EXIT_FAILURE);
                        }
                        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 'W':
                        width = atoi(optarg);
                        if (width < 0) {
@@ -215,6 +233,13 @@ int main(int argc, char *argv[])
        printf("Native resolution: %dx%d\n",
               device_info.native_width, device_info.native_height);
 
+       ret = am7xxx_set_zoom_mode(dev, zoom);
+       if (ret < 0) {
+               perror("am7xxx_set_zoom_mode");
+               exit_code = EXIT_FAILURE;
+               goto cleanup;
+       }
+
        ret = am7xxx_set_power_mode(dev, power_mode);
        if (ret < 0) {
                perror("am7xxx_set_power_mode");
@@ -222,6 +247,11 @@ int main(int argc, char *argv[])
                goto cleanup;
        }
 
+       /* When setting AM7XXX_ZOOM_TEST don't display the actual image */
+       if (zoom == AM7XXX_ZOOM_TEST)
+               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");