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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 */
#ifndef __UNIFIED_CAMERA_ACCESS_CAM_H
#define __UNIFIED_CAMERA_ACCESS_CAM_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file uca-cam.h
* \brief Abstract camera model
*
* The uca_camera_priv_t structure represents a common interface for cameras regardless of
* their connectivity. Each camera that adheres to this model must provide an
* initialization function implementing uca_cam_init() that probes the device
* and sets all function pointers to their respective implementations.
*/
enum uca_property_ids;
/*
* --- non-virtual methods ----------------------------------------------------
*/
typedef uint32_t (*uca_cam_init) (struct uca_camera_priv **cam, struct uca_grabber_priv *grabber);
/**
* Allocates memory for a new uca_camera_priv structure and initializes all fields to
* sane values.
*
* \return Pointer to block of memory for a uca_camera_priv structure
*
* \note This is is a utility function used internally by drivers
*/
struct uca_camera_priv *uca_cam_new(void);
/**
* Represents a camera abstraction, that concrete cameras must implement.
*/
typedef struct uca_camera_priv {
/* virtual methods to be overridden by concrete cameras */
uint32_t (*destroy) (struct uca_camera_priv *cam);
uint32_t (*set_property) (struct uca_camera_priv *cam, uca_property_ids property, void *data);
uint32_t (*get_property) (struct uca_camera_priv *cam, uca_property_ids property, void *data, size_t num);
uint32_t (*start_recording) (struct uca_camera_priv *cam);
uint32_t (*stop_recording) (struct uca_camera_priv *cam);
uint32_t (*trigger) (struct uca_camera_priv *cam);
uint32_t (*register_callback) (struct uca_camera_priv *cam, uca_cam_grab_callback callback, void *user);
uint32_t (*release_buffer) (struct uca_camera_priv *cam, void *buffer);
uint32_t (*grab) (struct uca_camera_priv *cam, char *buffer, void *meta_data);
uint32_t (*readout) (struct uca_camera_priv *cam);
struct uca_grabber_priv *grabber; /**< grabber associated with this camera */
uca_cam_state state; /**< camera state handled in uca.c */
uint32_t frame_width; /**< current frame width */
uint32_t frame_height; /**< current frame height */
uint64_t current_frame; /**< last grabbed frame number */
uca_cam_grab_callback callback;
void *callback_user; /**< user data for callback */
void *user; /**< private user data to be used by the camera driver */
} uca_camera_priv_t;
#ifdef __cplusplus
}
#endif
#endif
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