Implement single frame grabbing

1 files changed, 31 insertions, 42 deletions

diff --git a/test/grab.c b/test/grab.c
index 740522b..56b7cd6 100644
--- a/test/grab.c
+++ b/test/grab.c
@@ -15,80 +15,69 @@
    with this library; if not, write to the Free Software Foundation, Inc., 51
    Franklin St, Fifth Floor, Boston, MA 02110, USA */
 
+#include <glib-object.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <signal.h>
-#include <unistd.h>
-#include "uca.h"
+#include "uca-camera.h"
 
 #define handle_error(errno) {if ((errno) != UCA_NO_ERROR) printf("error at <%s:%i>\n", \
     __FILE__, __LINE__);}
 
-uca *u = NULL;
+static UcaCamera *camera = NULL;
 
 void sigint_handler(int signal)
 {
     printf("Closing down libuca\n");
-    handle_error(uca_cam_stop_recording(u->cameras));
-    uca_destroy(u);
+    uca_camera_stop_recording(camera, NULL);
+    g_object_unref(camera);
     exit(signal);
 }
 
 int main(int argc, char *argv[])
 {
+    GError *error = NULL;
     (void) signal(SIGINT, sigint_handler);
 
-    u = uca_init(NULL);
-    if (u == NULL) {
-        printf("Couldn't find a camera\n");
+    g_type_init();
+    camera = uca_camera_new("pco", &error);
+
+    if (camera == NULL) {
+        g_print("Couldn't initialize camera\n");
         return 1;
     }
 
-    /* take first camera */
-    uca_camera *cam = u->cameras;
-
-    uint32_t val = 5000;
-    handle_error(uca_cam_set_property(cam, UCA_PROP_EXPOSURE, &val));
-    val = 0;
-    handle_error(uca_cam_set_property(cam, UCA_PROP_DELAY, &val));
-    val = UCA_TIMESTAMP_ASCII | UCA_TIMESTAMP_BINARY;
-    handle_error(uca_cam_set_property(cam, UCA_PROP_TIMESTAMP_MODE, &val));
-    val = 1;
-    handle_error(uca_cam_set_property(cam, UCA_PROP_GRAB_AUTO, &val));
-
-    uint32_t width, height, bits;
-    handle_error(uca_cam_get_property(cam, UCA_PROP_WIDTH, &width, 0));
-    handle_error(uca_cam_get_property(cam, UCA_PROP_HEIGHT, &height, 0));
-    handle_error(uca_cam_get_property(cam, UCA_PROP_BITDEPTH, &bits, 0));
-
-    handle_error(uca_cam_alloc(cam, 20));
+    guint width, height, bits;
+    g_object_get(G_OBJECT(camera),
+            "sensor-width", &width,
+            "sensor-height", &height,
+            "sensor-bitdepth", &bits,
+            NULL);
 
     const int pixel_size = bits == 8 ? 1 : 2;
-    uint16_t *buffer = (uint16_t *) malloc(width * height * pixel_size);
+    gpointer buffer = g_malloc0(width * height * pixel_size);
 
-    handle_error(uca_cam_start_recording(cam));
-    /* sleep(3); */
+    uca_camera_start_recording(camera, &error);
 
-    uint32_t error = UCA_NO_ERROR;
-    char filename[FILENAME_MAX];
-    int counter = 0;
+    gchar filename[FILENAME_MAX];
+    gint counter = 0;
 
-    while ((error == UCA_NO_ERROR) && (counter < 20)) {
-        printf(" grab frame ... ");
-        error = uca_cam_grab(cam, (char *) buffer, NULL);
-        if (error != UCA_NO_ERROR)
+    while (counter < 20) {
+        g_print(" grab frame ... ");
+        uca_camera_grab(camera, &buffer, &error);
+        if (error != NULL)
             break;
-        printf("done\n");
+        g_print("done\n");
 
         snprintf(filename, FILENAME_MAX, "frame-%08i.raw", counter++);
         FILE *fp = fopen(filename, "wb");
         fwrite(buffer, width*height, pixel_size, fp);
         fclose(fp);
     }
-    handle_error(uca_cam_stop_recording(cam));
 
-    uca_destroy(u);
-    free(buffer);
+    uca_camera_stop_recording(camera, &error);
+    g_object_unref(camera);
+    g_free(buffer);
 
-    return error != UCA_NO_ERROR ? 1 : 0;
+    return error != NULL ? 1 : 0;
 }