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/* 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 <glib.h>
#include "uca-camera.h"
#define UCA_CAMERA_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UCA_TYPE_CAMERA, UcaCameraPrivate))
G_DEFINE_TYPE(UcaCamera, uca_camera, G_TYPE_OBJECT)
/**
* UcaCameraError:
* @UCA_CAMERA_ERROR_RECORDING: Camera is already recording
* @UCA_CAMERA_ERROR_NOT_RECORDING: Camera is not recording
*/
GQuark uca_camera_error_quark()
{
return g_quark_from_static_string("uca-camera-error-quark");
}
enum {
RECORDING_STARTED,
RECORDING_STOPPED,
PROPERTY_CHANGED,
LAST_SIGNAL
};
enum {
PROP_0 = 0,
PROP_SENSOR_WIDTH,
PROP_SENSOR_HEIGHT,
PROP_SENSOR_BITDEPTH,
PROP_SENSOR_HORIZONTAL_BINNING,
PROP_SENSOR_HORIZONTAL_BINNINGS,
PROP_SENSOR_VERTICAL_BINNING,
PROP_SENSOR_VERTICAL_BINNINGS,
PROP_HAS_STREAMING,
PROP_HAS_CAMRAM_RECORDING,
N_PROPERTIES
};
struct _UcaCameraPrivate {
gboolean recording;
};
static GParamSpec *camera_properties[N_PROPERTIES] = { NULL, };
static guint camera_signals[LAST_SIGNAL] = { 0 };
static void uca_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
{
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
}
static void uca_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
{
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
}
static void uca_camera_class_init(UcaCameraClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
gobject_class->set_property = uca_camera_set_property;
gobject_class->get_property = uca_camera_get_property;
klass->start_recording = NULL;
klass->stop_recording = NULL;
klass->grab = NULL;
camera_properties[PROP_SENSOR_WIDTH] =
g_param_spec_uint("sensor-width",
"Width of sensor",
"Width of the sensor in pixels",
1, G_MAXUINT, 1,
G_PARAM_READABLE);
camera_properties[PROP_SENSOR_HEIGHT] =
g_param_spec_uint("sensor-height",
"Height of sensor",
"Height of the sensor in pixels",
1, G_MAXUINT, 1,
G_PARAM_READABLE);
camera_properties[PROP_SENSOR_BITDEPTH] =
g_param_spec_uint("sensor-bitdepth",
"Number of bits per pixel",
"Number of bits per pixel",
1, 32, 1,
G_PARAM_READABLE);
camera_properties[PROP_SENSOR_HORIZONTAL_BINNING] =
g_param_spec_uint("sensor-horizontal-binning",
"Horizontal binning",
"Number of sensor ADCs that are combined to one pixel in horizontal direction",
1, G_MAXUINT, 1,
G_PARAM_READWRITE);
camera_properties[PROP_SENSOR_HORIZONTAL_BINNINGS] =
g_param_spec_value_array("sensor-horizontal-binnings",
"Array of possible binnings",
"Array of possible binnings in horizontal direction",
g_param_spec_uint(
"sensor-horizontal-binning",
"Number of ADCs",
"Number of ADCs that make up one pixel",
1, G_MAXUINT, 1,
G_PARAM_READABLE), G_PARAM_READABLE);
camera_properties[PROP_SENSOR_VERTICAL_BINNING] =
g_param_spec_uint("sensor-vertical-binning",
"Vertical binning",
"Number of sensor ADCs that are combined to one pixel in vertical direction",
1, G_MAXUINT, 1,
G_PARAM_READWRITE);
camera_properties[PROP_SENSOR_VERTICAL_BINNINGS] =
g_param_spec_value_array("sensor-vertical-binnings",
"Array of possible binnings",
"Array of possible binnings in vertical direction",
g_param_spec_uint(
"sensor-vertical-binning",
"Number of ADCs",
"Number of ADCs that make up one pixel",
1, G_MAXUINT, 1,
G_PARAM_READABLE), G_PARAM_READABLE);
camera_properties[PROP_HAS_STREAMING] =
g_param_spec_boolean("has-streaming",
"Streaming capability",
"Is the camera able to stream the data",
TRUE, G_PARAM_READABLE);
camera_properties[PROP_HAS_CAMRAM_RECORDING] =
g_param_spec_boolean("has-camram-recording",
"Cam-RAM capability",
"Is the camera able to record the data in-camera",
FALSE, G_PARAM_READABLE);
for (guint id = PROP_0 + 1; id < N_PROPERTIES; id++)
g_object_class_install_property(gobject_class, id, camera_properties[id]);
camera_signals[RECORDING_STARTED] =
g_signal_new("recording-started",
G_OBJECT_CLASS_TYPE(gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET(UcaCameraClass, recording_started),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0, NULL);
camera_signals[RECORDING_STOPPED] =
g_signal_new("recording-stopped",
G_OBJECT_CLASS_TYPE(gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET(UcaCameraClass, recording_stopped),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0, NULL);
g_type_class_add_private(klass, sizeof(UcaCameraPrivate));
}
static void uca_camera_init(UcaCamera *camera)
{
camera->priv = UCA_CAMERA_GET_PRIVATE(camera);
camera->priv->recording = FALSE;
}
void uca_camera_start_recording(UcaCamera *camera, GError **error)
{
g_return_if_fail(UCA_IS_CAMERA(camera));
UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera);
g_return_if_fail(klass != NULL);
g_return_if_fail(klass->start_recording != NULL);
if (camera->priv->recording) {
g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_RECORDING,
"Camera is already recording");
return;
}
camera->priv->recording = TRUE;
(*klass->start_recording)(camera, error);
g_signal_emit_by_name(G_OBJECT(camera), "recording-started");
}
void uca_camera_stop_recording(UcaCamera *camera, GError **error)
{
g_return_if_fail(UCA_IS_CAMERA(camera));
UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera);
g_return_if_fail(klass != NULL);
g_return_if_fail(klass->stop_recording != NULL);
if (!camera->priv->recording) {
g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_RECORDING,
"Camera is not recording");
return;
}
camera->priv->recording = FALSE;
(*klass->stop_recording)(camera, error);
g_signal_emit_by_name(G_OBJECT(camera), "recording-stopped");
}
void uca_camera_grab(UcaCamera *camera, gchar *data, GError **error)
{
g_return_if_fail(UCA_IS_CAMERA(camera));
UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera);
g_return_if_fail(klass != NULL);
g_return_if_fail(klass->grab != NULL);
if (!camera->priv->recording) {
g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_RECORDING,
"Camera is not recording");
return;
}
(*klass->grab)(camera, data, error);
}
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