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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 <math.h>
#include <stdlib.h>
#include <string.h>
#include "uca.h"
#include "uca-cam.h"
#include "uca-grabber.h"
static uint32_t uca_simple_set_property(struct uca_camera_priv *cam, uca_property_ids property, void *data)
{
struct uca_grabber_priv *grabber = cam->grabber;
int err = UCA_NO_ERROR;
/* We try to set the property on the grabber. If it returns "invalid", we
* also try it via the PF SDK. Else, there was a more serious error.
*
* FIXME: This is actually not that good for cases where only the grabber
* should set a certain property and the camera itself is not able to do so. */
err = grabber->set_property(grabber, property, data);
if (((err & UCA_ERR_MASK_CODE) == UCA_ERR_INVALID) || (err == UCA_NO_ERROR))
err = UCA_ERR_CAMERA | UCA_ERR_PROP;
else
return err;
return UCA_NO_ERROR;
}
static uint32_t uca_simple_get_property(struct uca_camera_priv *cam, uca_property_ids property, void *data, size_t num)
{
struct uca_grabber_priv *grabber = cam->grabber;
uint32_t value32 = 0;
/* Handle all special cases */
switch (property) {
case UCA_PROP_NAME:
strncpy((char *) data, "Simple Framegrabber Access", num);
break;
case UCA_PROP_WIDTH:
grabber->get_property(grabber, UCA_PROP_WIDTH, &value32);
uca_set_void(data, uint32_t, value32);
break;
case UCA_PROP_HEIGHT:
grabber->get_property(grabber, UCA_PROP_HEIGHT, &value32);
uca_set_void(data, uint32_t, value32);
break;
case UCA_PROP_X_OFFSET:
grabber->get_property(grabber, UCA_PROP_X_OFFSET, &value32);
uca_set_void(data, uint32_t, value32);
break;
case UCA_PROP_Y_OFFSET:
grabber->get_property(grabber, UCA_PROP_Y_OFFSET, &value32);
uca_set_void(data, uint32_t, value32);
break;
case UCA_PROP_BITDEPTH:
uca_set_void(data, uint32_t, 8);
return UCA_NO_ERROR;
default:
break;
}
/* Try to get the property via frame grabber */
return cam->grabber->get_property(cam->grabber, property, data);
}
static uint32_t uca_simple_start_recording(struct uca_camera_priv *cam)
{
return cam->grabber->acquire(cam->grabber, -1);
}
static uint32_t uca_simple_stop_recording(struct uca_camera_priv *cam)
{
return cam->grabber->stop_acquire(cam->grabber);
}
static uint32_t uca_simple_trigger(struct uca_camera_priv *cam)
{
return cam->grabber->trigger(cam->grabber);
}
static uint32_t uca_simple_grab(struct uca_camera_priv *cam, char *buffer, void *metadata)
{
uint16_t *frame;
uint32_t err = cam->grabber->grab(cam->grabber, (void **) &frame, &cam->current_frame);
if (err != UCA_NO_ERROR)
return err;
memcpy(buffer, frame, cam->frame_width*cam->frame_height);
return UCA_NO_ERROR;
}
static uint32_t uca_simple_register_callback(struct uca_camera_priv *cam, uca_cam_grab_callback callback, void *user)
{
if (cam->callback == NULL) {
cam->callback = callback;
cam->callback_user = user;
return cam->grabber->register_callback(cam->grabber, callback, NULL, user);
}
return UCA_ERR_CAMERA | UCA_ERR_CALLBACK | UCA_ERR_ALREADY_REGISTERED;
}
static uint32_t uca_simple_destroy(struct uca_camera_priv *cam)
{
return UCA_NO_ERROR;
}
uint32_t uca_simple_init(struct uca_camera_priv **cam, struct uca_grabber_priv *grabber)
{
if (grabber == NULL)
return UCA_ERR_CAMERA | UCA_ERR_INIT | UCA_ERR_NOT_FOUND;
struct uca_camera_priv *uca = uca_cam_new();
uca->grabber = grabber;
uca->grabber->synchronous = false;
/* Camera found, set function pointers... */
uca->destroy = &uca_simple_destroy;
uca->set_property = &uca_simple_set_property;
uca->get_property = &uca_simple_get_property;
uca->start_recording = &uca_simple_start_recording;
uca->stop_recording = &uca_simple_stop_recording;
uca->trigger = &uca_simple_trigger;
uca->grab = &uca_simple_grab;
uca->register_callback = &uca_simple_register_callback;
/* Prepare frame grabber for recording */
int val = UCA_CL_8BIT_FULL_8;
grabber->set_property(grabber, UCA_GRABBER_CAMERALINK_TYPE, &val);
val = UCA_FORMAT_GRAY8;
grabber->set_property(grabber, UCA_GRABBER_FORMAT, &val);
val = UCA_TRIGGER_AUTO;
grabber->set_property(grabber, UCA_GRABBER_TRIGGER_MODE, &val);
grabber->get_property(grabber, UCA_PROP_WIDTH, &uca->frame_width);
grabber->get_property(grabber, UCA_PROP_HEIGHT, &uca->frame_height);
uca->state = UCA_CAM_CONFIGURABLE;
*cam = uca;
return UCA_NO_ERROR;
}
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