From b29c78f818ac92f42621c69c29736fe5c8e32c6f Mon Sep 17 00:00:00 2001 From: Matthias Vogelgesang Date: Thu, 1 Mar 2012 12:32:10 +0100 Subject: Initial prototype of GObject-based libuca --- src/cameras/uca-pco-camera.c | 138 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 src/cameras/uca-pco-camera.c (limited to 'src/cameras/uca-pco-camera.c') 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 + (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 +#include +#include +#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); +} -- cgit v1.2.3