From 2480178acbf97c72205d525d3d4d4f589477c2b0 Mon Sep 17 00:00:00 2001
From: Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
Date: Tue, 16 Dec 2014 17:17:30 +0100
Subject: Add uca_camera_write to write arbitrary data

This is necessary for cameras that provide a custom calibration.
---
 src/uca-camera.c | 33 +++++++++++++++++++++++++++++++++
 src/uca-camera.h |  6 ++++++
 2 files changed, 39 insertions(+)

(limited to 'src')

diff --git a/src/uca-camera.c b/src/uca-camera.c
index 50a9aea..965015b 100644
--- a/src/uca-camera.c
+++ b/src/uca-camera.c
@@ -342,6 +342,7 @@ uca_camera_class_init (UcaCameraClass *klass)
     klass->start_recording = NULL;
     klass->stop_recording = NULL;
     klass->grab = NULL;
+    klass->write = NULL;
 
     camera_properties[PROP_NAME] =
         g_param_spec_string("name",
@@ -918,6 +919,38 @@ uca_camera_trigger (UcaCamera *camera, GError **error)
     g_static_mutex_unlock (&mutex);
 }
 
+/**
+ * uca_camera_write:
+ * @camera: A #UcaCamera object
+ * @name: String that identifies the written data.
+ * @data: (type gulong): Pointer to suitably sized data buffer. Must not be
+ *  %NULL.
+ * @size: Size of the data buffer in bytes.
+ * @error: Location to store a #UcaCameraError or %NULL.
+ *
+ * Writes camera-specific @data containing @size bytes and identified by @name.
+ */
+void
+uca_camera_write (UcaCamera *camera, const gchar *name, gpointer data, gsize size, GError **error)
+{
+    UcaCameraClass *klass;
+
+    g_return_if_fail (UCA_IS_CAMERA (camera));
+
+    klass = UCA_CAMERA_GET_CLASS (camera);
+
+    g_return_if_fail (klass != NULL);
+
+    if (klass->write == NULL) {
+        g_set_error (error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_IMPLEMENTED,
+                     "`%s' does not provide a `write' method",
+                     G_OBJECT_TYPE_NAME (G_OBJECT (camera)));
+    }
+    else {
+        (*klass->write) (camera, name, data, size, error);
+    }
+}
+
 /**
  * uca_camera_grab:
  * @camera: A #UcaCamera object
diff --git a/src/uca-camera.h b/src/uca-camera.h
index 62a6c89..156df8b 100644
--- a/src/uca-camera.h
+++ b/src/uca-camera.h
@@ -135,6 +135,7 @@ struct _UcaCameraClass {
     void (*start_readout)   (UcaCamera *camera, GError **error);
     void (*stop_readout)    (UcaCamera *camera, GError **error);
     void (*trigger)         (UcaCamera *camera, GError **error);
+    void (*write)           (UcaCamera *camera, const gchar *name, gpointer data, gsize size, GError **error);
     gboolean (*grab)        (UcaCamera *camera, gpointer data, GError **error);
 };
 
@@ -151,6 +152,11 @@ void        uca_camera_stop_readout     (UcaCamera          *camera,
                                          GError            **error);
 void        uca_camera_trigger          (UcaCamera          *camera,
                                          GError            **error);
+void        uca_camera_write            (UcaCamera          *camera,
+                                         const gchar        *name,
+                                         gpointer            data,
+                                         gsize               size,
+                                         GError            **error);
 gboolean    uca_camera_grab             (UcaCamera          *camera,
                                          gpointer            data,
                                          GError            **error)
-- 
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