Initial prototype of GObject-based libuca

1 files changed, 138 insertions, 0 deletions

diff --git a/src/cameras/uca-pco-camera.c b/src/cameras/uca-pco-camera.c
new file mode 100644
index 0000000..9ca52cf
--- /dev/null
+++ b/src/cameras/uca-pco-camera.c
@@ -0,0 +1,138 @@
+/* Copyright (C) 2011, 2012 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
+   (Karlsruhe Institute of Technology)
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as published by the
+   Free Software Foundation; either version 2.1 of the License, or (at your
+   option) any later version.
+
+   This library is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+   FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+   details.
+
+   You should have received a copy of the GNU Lesser General Public License along
+   with this library; if not, write to the Free Software Foundation, Inc., 51
+   Franklin St, Fifth Floor, Boston, MA 02110, USA */
+
+#include <stdlib.h>
+#include <libpco/libpco.h>
+#include <libpco/sc2_defs.h>
+#include "uca-camera.h"
+#include "uca-pco-camera.h"
+
+#define UCA_PCO_CAMERA_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UCA_TYPE_PCO_CAMERA, UcaPcoCameraPrivate))
+
+static void uca_pco_camera_interface_init(UcaCameraInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE(UcaPcoCamera, uca_pco_camera, G_TYPE_OBJECT,
+                        G_IMPLEMENT_INTERFACE(UCA_TYPE_CAMERA,
+                                              uca_pco_camera_interface_init));
+
+enum {
+    PROP_0,
+    PROP_SENSOR_WIDTH,
+    PROP_SENSOR_HEIGHT,
+    N_PROPERTIES
+};
+
+static const gchar *pco_overrideables[N_PROPERTIES] = {
+    "sensor-width",
+    "sensor-height"
+};
+
+struct _UcaPcoCameraPrivate {
+    pco_handle pco;
+};
+
+UcaPcoCamera *uca_pco_camera_new(GError **error)
+{
+    pco_handle pco = pco_init();
+
+    if (pco == NULL) {
+        /* TODO: throw error */ 
+        return NULL;
+    }
+
+    UcaPcoCamera *camera = g_object_new(UCA_TYPE_PCO_CAMERA, NULL);
+    camera->priv->pco = pco;
+    return camera;
+}
+
+static void uca_pco_camera_start_recording(UcaCamera *camera)
+{
+    g_return_if_fail(UCA_IS_PCO_CAMERA(camera));
+}
+
+static void uca_pco_camera_stop_recording(UcaCamera *camera)
+{
+    g_return_if_fail(UCA_IS_PCO_CAMERA(camera));
+}
+
+static void uca_pco_camera_grab(UcaCamera *camera, gchar *data)
+{
+    g_return_if_fail(UCA_IS_PCO_CAMERA(camera));
+}
+
+static void uca_pco_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
+{
+    UcaPcoCameraPrivate *priv = UCA_PCO_CAMERA_GET_PRIVATE(object);
+
+    switch (property_id) {
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
+            break;
+    }
+}
+
+static void uca_pco_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
+{
+    UcaPcoCameraPrivate *priv = UCA_PCO_CAMERA_GET_PRIVATE(object);
+
+    switch (property_id) {
+        case PROP_SENSOR_WIDTH: 
+            {
+                uint16_t width_std, height_std, width_ex, height_ex;
+                if (pco_get_resolution(priv->pco, &width_std, &height_std, &width_ex, &height_ex) == PCO_NOERROR)
+                    g_value_set_uint(value, width_std);
+            }
+            break;
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
+            break;
+    }
+}
+
+static void uca_pco_camera_finalize(GObject *object)
+{
+    UcaPcoCameraPrivate *priv = UCA_PCO_CAMERA_GET_PRIVATE(object);
+
+    pco_destroy(priv->pco);
+
+    G_OBJECT_CLASS(uca_pco_camera_parent_class)->finalize(object);
+}
+
+static void uca_pco_camera_interface_init(UcaCameraInterface *iface)
+{
+    iface->start_recording = uca_pco_camera_start_recording;
+    iface->stop_recording = uca_pco_camera_stop_recording;
+    iface->grab = uca_pco_camera_grab;
+}
+
+static void uca_pco_camera_class_init(UcaPcoCameraClass *klass)
+{
+    GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+    gobject_class->set_property = uca_pco_camera_set_property;
+    gobject_class->get_property = uca_pco_camera_get_property;
+    gobject_class->finalize = uca_pco_camera_finalize;
+
+    for (guint property_id = PROP_0+1; property_id < N_PROPERTIES; property_id++)
+        g_object_class_override_property(gobject_class, property_id, pco_overrideables[property_id-1]);
+
+    g_type_class_add_private(klass, sizeof(UcaPcoCameraPrivate));
+}
+
+static void uca_pco_camera_init(UcaPcoCamera *self)
+{
+    self->priv = UCA_PCO_CAMERA_GET_PRIVATE(self);
+}