From a8436e9b42a1b5a2b30b13a13496539fc23f480e Mon Sep 17 00:00:00 2001 From: Matthias Vogelgesang Date: Fri, 2 Mar 2012 10:31:40 +0100 Subject: Make UcaCamera a base class not an interface --- src/cameras/uca-mock-camera.c | 50 +++++++++++++----------- src/cameras/uca-mock-camera.h | 7 +++- src/cameras/uca-pco-camera.c | 20 ++++------ src/cameras/uca-pco-camera.h | 5 ++- src/uca-camera.c | 88 +++++++++++++++++++++++++++++++++++-------- src/uca-camera.h | 24 ++++++++++-- 6 files changed, 137 insertions(+), 57 deletions(-) (limited to 'src') diff --git a/src/cameras/uca-mock-camera.c b/src/cameras/uca-mock-camera.c index ba92a67..12ba070 100644 --- a/src/cameras/uca-mock-camera.c +++ b/src/cameras/uca-mock-camera.c @@ -15,21 +15,18 @@ with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA */ -#include "uca-camera.h" +#include #include "uca-mock-camera.h" #define UCA_MOCK_CAMERA_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UCA_TYPE_MOCK_CAMERA, UcaMockCameraPrivate)) -static void uca_mock_camera_interface_init(UcaCameraInterface *iface); - -G_DEFINE_TYPE_WITH_CODE(UcaMockCamera, uca_mock_camera, G_TYPE_OBJECT, - G_IMPLEMENT_INTERFACE(UCA_TYPE_CAMERA, - uca_mock_camera_interface_init)); +G_DEFINE_TYPE(UcaMockCamera, uca_mock_camera, UCA_TYPE_CAMERA) enum { PROP_0, PROP_SENSOR_WIDTH, PROP_SENSOR_HEIGHT, + PROP_SENSOR_BITDEPTH, N_INTERFACE_PROPERTIES, N_PROPERTIES @@ -37,7 +34,8 @@ enum { static const gchar *mock_overrideables[N_PROPERTIES] = { "sensor-width", - "sensor-height" + "sensor-height", + "sensor-bitdepth" }; struct _UcaMockCameraPrivate { @@ -46,22 +44,28 @@ struct _UcaMockCameraPrivate { guint16 *dummy_data; }; +UcaMockCamera *uca_mock_camera_new(GError **error) +{ + UcaMockCamera *camera = g_object_new(UCA_TYPE_MOCK_CAMERA, NULL); + return camera; +} + static void uca_mock_camera_start_recording(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_MOCK_CAMERA(camera)); - g_print("start recording\n"); } static void uca_mock_camera_stop_recording(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_MOCK_CAMERA(camera)); - g_print("stop recording\n"); + UcaMockCameraPrivate *priv = UCA_MOCK_CAMERA_GET_PRIVATE(camera); } static void uca_mock_camera_grab(UcaCamera *camera, gchar *data, GError **error) { g_return_if_fail(UCA_IS_MOCK_CAMERA(camera)); - /* g_memmove(data, camera->priv->dummy_data, camera->priv->width * camera->priv->height * 2); */ + UcaMockCameraPrivate *priv = UCA_MOCK_CAMERA_GET_PRIVATE(camera); + g_memmove(data, priv->dummy_data, priv->width * priv->height); } static void uca_mock_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) @@ -81,7 +85,13 @@ static void uca_mock_camera_get_property(GObject *object, guint property_id, GVa switch (property_id) { case PROP_SENSOR_WIDTH: - g_value_set_uint(value, 1024); + g_value_set_uint(value, priv->width); + break; + case PROP_SENSOR_HEIGHT: + g_value_set_uint(value, priv->height); + break; + case PROP_SENSOR_BITDEPTH: + g_value_set_uint(value, 8); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); @@ -98,13 +108,6 @@ static void uca_mock_camera_finalize(GObject *object) G_OBJECT_CLASS(uca_mock_camera_parent_class)->finalize(object); } -static void uca_mock_camera_interface_init(UcaCameraInterface *iface) -{ - iface->start_recording = uca_mock_camera_start_recording; - iface->stop_recording = uca_mock_camera_stop_recording; - iface->grab = uca_mock_camera_grab; -} - static void uca_mock_camera_class_init(UcaMockCameraClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS(klass); @@ -112,6 +115,11 @@ static void uca_mock_camera_class_init(UcaMockCameraClass *klass) gobject_class->get_property = uca_mock_camera_get_property; gobject_class->finalize = uca_mock_camera_finalize; + UcaCameraClass *camera_class = UCA_CAMERA_CLASS(klass); + camera_class->start_recording = uca_mock_camera_start_recording; + camera_class->stop_recording = uca_mock_camera_stop_recording; + camera_class->grab = uca_mock_camera_grab; + for (guint id = PROP_0 + 1; id < N_INTERFACE_PROPERTIES; id++) g_object_class_override_property(gobject_class, id, mock_overrideables[id-1]); @@ -121,7 +129,7 @@ static void uca_mock_camera_class_init(UcaMockCameraClass *klass) static void uca_mock_camera_init(UcaMockCamera *self) { self->priv = UCA_MOCK_CAMERA_GET_PRIVATE(self); - self->priv->width = 1024; - self->priv->height = 768; - self->priv->dummy_data = (guint16 *) g_malloc0(self->priv->width * self->priv->height * 2); + self->priv->width = 640; + self->priv->height = 480; + self->priv->dummy_data = (guint16 *) g_malloc0(self->priv->width * self->priv->height); } diff --git a/src/cameras/uca-mock-camera.h b/src/cameras/uca-mock-camera.h index 708542a..aa196db 100644 --- a/src/cameras/uca-mock-camera.h +++ b/src/cameras/uca-mock-camera.h @@ -19,6 +19,7 @@ #define __UCA_MOCK_CAMERA_H #include +#include "uca-camera.h" #define UCA_TYPE_MOCK_CAMERA (uca_mock_camera_get_type()) #define UCA_MOCK_CAMERA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), UCA_TYPE_MOCK_CAMERA, UcaMockCamera)) @@ -40,7 +41,7 @@ typedef struct _UcaMockCameraPrivate UcaMockCameraPrivate; */ struct _UcaMockCamera { /*< private >*/ - GObject parent; + UcaCamera parent; UcaMockCameraPrivate *priv; }; @@ -52,9 +53,11 @@ struct _UcaMockCamera { */ struct _UcaMockCameraClass { /*< private >*/ - GObjectClass parent; + UcaCameraClass parent; }; +UcaMockCamera *uca_mock_camera_new(GError **error); + GType uca_mock_camera_get_type(void); #endif diff --git a/src/cameras/uca-pco-camera.c b/src/cameras/uca-pco-camera.c index 332d3ea..0e1267c 100644 --- a/src/cameras/uca-pco-camera.c +++ b/src/cameras/uca-pco-camera.c @@ -27,9 +27,7 @@ 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)); +G_DEFINE_TYPE(UcaPcoCamera, uca_pco_camera, UCA_TYPE_CAMERA) /** * UcaPcoCameraError: @@ -54,7 +52,7 @@ enum { N_PROPERTIES }; -static const gchar *pco_overrideables[N_PROPERTIES] = { +static const gchar *base_overrideables[N_PROPERTIES] = { "sensor-width", "sensor-height", "sensor-bitdepth" @@ -229,13 +227,6 @@ static void uca_pco_camera_finalize(GObject *object) 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); @@ -243,8 +234,13 @@ static void uca_pco_camera_class_init(UcaPcoCameraClass *klass) gobject_class->get_property = uca_pco_camera_get_property; gobject_class->finalize = uca_pco_camera_finalize; + UcaCameraClass *camera_class = UCA_CAMERA_CLASS(klass); + camera_class->start_recording = uca_pco_camera_start_recording; + camera_class->stop_recording = uca_pco_camera_stop_recording; + camera_class->grab = uca_pco_camera_grab; + for (guint id = PROP_0 + 1; id < N_INTERFACE_PROPERTIES; id++) - g_object_class_override_property(gobject_class, id, pco_overrideables[id-1]); + g_object_class_override_property(gobject_class, id, base_overrideables[id-1]); pco_properties[PROP_NAME] = g_param_spec_string("name", diff --git a/src/cameras/uca-pco-camera.h b/src/cameras/uca-pco-camera.h index 68e92fa..ba6a105 100644 --- a/src/cameras/uca-pco-camera.h +++ b/src/cameras/uca-pco-camera.h @@ -19,6 +19,7 @@ #define __UCA_PCO_CAMERA_H #include +#include "uca-camera.h" #define UCA_TYPE_PCO_CAMERA (uca_pco_camera_get_type()) #define UCA_PCO_CAMERA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), UCA_TYPE_PCO_CAMERA, UcaPcoCamera)) @@ -48,7 +49,7 @@ typedef struct _UcaPcoCameraPrivate UcaPcoCameraPrivate; */ struct _UcaPcoCamera { /*< private >*/ - GObject parent; + UcaCamera parent; UcaPcoCameraPrivate *priv; }; @@ -60,7 +61,7 @@ struct _UcaPcoCamera { */ struct _UcaPcoCameraClass { /*< private >*/ - GObjectClass parent; + UcaCameraClass parent; }; UcaPcoCamera *uca_pco_camera_new(GError **error); diff --git a/src/uca-camera.c b/src/uca-camera.c index cb7890b..d8c1a25 100644 --- a/src/uca-camera.c +++ b/src/uca-camera.c @@ -18,7 +18,19 @@ #include #include "uca-camera.h" -G_DEFINE_INTERFACE(UcaCamera, uca_camera, G_TYPE_OBJECT) +#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 { PROP_0 = 0, @@ -30,10 +42,26 @@ enum { N_PROPERTIES }; +struct _UcaCameraPrivate { + gboolean recording; +}; + static GParamSpec *uca_camera_properties[N_PROPERTIES] = { NULL, }; -static void uca_camera_default_init(UcaCameraInterface *klass) +static void uca_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) +{ +} + +static void uca_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *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; @@ -73,43 +101,71 @@ static void uca_camera_default_init(UcaCameraInterface *klass) 1, G_MAXUINT, 1, G_PARAM_READWRITE); - for (int i = PROP_0 + 1; i < N_PROPERTIES; i++) - g_object_interface_install_property(klass, uca_camera_properties[i]); + for (guint id = PROP_0 + 1; id < N_PROPERTIES; id++) + g_object_class_install_property(gobject_class, id, uca_camera_properties[id]); + + 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)); - UcaCameraInterface *iface = UCA_CAMERA_GET_INTERFACE(camera); + UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera); + + g_return_if_fail(klass != NULL); + g_return_if_fail(klass->start_recording != NULL); - g_return_if_fail(iface != NULL); - g_return_if_fail(iface->start_recording != NULL); + if (camera->priv->recording) { + g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_RECORDING, + "Camera is already recording"); + return; + } - (*iface->start_recording)(camera, error); + camera->priv->recording = TRUE; + (*klass->start_recording)(camera, error); } void uca_camera_stop_recording(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_CAMERA(camera)); - UcaCameraInterface *iface = UCA_CAMERA_GET_INTERFACE(camera); + UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera); - g_return_if_fail(iface != NULL); - g_return_if_fail(iface->start_recording != NULL); + g_return_if_fail(klass != NULL); + g_return_if_fail(klass->stop_recording != NULL); - (*iface->stop_recording)(camera, error); + 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); } void uca_camera_grab(UcaCamera *camera, gchar *data, GError **error) { g_return_if_fail(UCA_IS_CAMERA(camera)); - UcaCameraInterface *iface = UCA_CAMERA_GET_INTERFACE(camera); + UcaCameraClass *klass = UCA_CAMERA_GET_CLASS(camera); + + g_return_if_fail(klass != NULL); + g_return_if_fail(klass->grab != NULL); - g_return_if_fail(iface != NULL); - g_return_if_fail(iface->start_recording != NULL); + if (!camera->priv->recording) { + g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_RECORDING, + "Camera is not recording"); + return; + } - (*iface->grab)(camera, data, error); + (*klass->grab)(camera, data, error); } diff --git a/src/uca-camera.h b/src/uca-camera.h index 1d66d8f..4e30c0a 100644 --- a/src/uca-camera.h +++ b/src/uca-camera.h @@ -23,19 +23,35 @@ #define UCA_TYPE_CAMERA (uca_camera_get_type()) #define UCA_CAMERA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), UCA_TYPE_CAMERA, UcaCamera)) #define UCA_IS_CAMERA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), UCA_TYPE_CAMERA)) -#define UCA_CAMERA_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE((obj), UCA_TYPE_CAMERA, UcaCameraInterface)) +#define UCA_CAMERA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), UCA_TYPE_CAMERA, UcaCameraClass)) +#define UCA_IS_CAMERA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), UCA_TYPE_CAMERA)) +#define UCA_CAMERA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), UCA_TYPE_CAMERA, UcaCameraClass)) + +#define UCA_CAMERA_ERROR uca_camera_error_quark() +typedef enum { + UCA_CAMERA_ERROR_RECORDING, + UCA_CAMERA_ERROR_NOT_RECORDING +} UcaCameraError; typedef struct _UcaCamera UcaCamera; -typedef struct _UcaCameraInterface UcaCameraInterface; +typedef struct _UcaCameraClass UcaCameraClass; +typedef struct _UcaCameraPrivate UcaCameraPrivate; + +struct _UcaCamera { + /*< private >*/ + GObject parent; + + UcaCameraPrivate *priv; +}; /** * UcaCameraInterface: * * Base interface for cameras. */ -struct _UcaCameraInterface { +struct _UcaCameraClass { /*< private >*/ - GTypeInterface parent; + GObjectClass parent; void (*start_recording) (UcaCamera *camera, GError **error); void (*stop_recording) (UcaCamera *camera, GError **error); -- cgit v1.2.3