diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cameras/dummy.c | 24 | ||||
| -rw-r--r-- | src/cameras/dummy.h | 2 | ||||
| -rw-r--r-- | src/cameras/ipe.c | 18 | ||||
| -rw-r--r-- | src/cameras/ipe.h | 2 | ||||
| -rw-r--r-- | src/cameras/pco.c | 28 | ||||
| -rw-r--r-- | src/cameras/pco.h | 2 | ||||
| -rw-r--r-- | src/cameras/pf.c | 22 | ||||
| -rw-r--r-- | src/cameras/pf.h | 2 | ||||
| -rw-r--r-- | src/grabbers/me4.c | 24 | ||||
| -rw-r--r-- | src/grabbers/me4.h | 2 | ||||
| -rw-r--r-- | src/uca-cam.c | 20 | ||||
| -rw-r--r-- | src/uca-cam.h | 233 | ||||
| -rw-r--r-- | src/uca-grabber.h | 36 | ||||
| -rw-r--r-- | src/uca.c | 97 | ||||
| -rw-r--r-- | src/uca.h | 141 |
15 files changed, 326 insertions, 327 deletions
diff --git a/src/cameras/dummy.c b/src/cameras/dummy.c index 2bb0400..0283989 100644 --- a/src/cameras/dummy.c +++ b/src/cameras/dummy.c @@ -106,7 +106,7 @@ static void uca_dummy_print_number(char *buffer, int number, int x, int y, int w } } -static void uca_dummy_memcpy(struct uca_camera *cam, char *buffer) +static void uca_dummy_memcpy(struct uca_camera_priv *cam, char *buffer) { /* print current frame number */ unsigned int number = cam->current_frame; @@ -127,7 +127,7 @@ static __suseconds_t uca_dummy_time_diff(struct timeval *start, struct timeval * static void *uca_dummy_grab_thread(void *arg) { - struct uca_camera *cam = ((struct uca_camera *) arg); + struct uca_camera_priv *cam = ((struct uca_camera_priv *) arg); struct dummy_cam *dc = GET_DUMMY(cam); assert(dc->frame_rate > 0); @@ -156,7 +156,7 @@ static void *uca_dummy_grab_thread(void *arg) /* * --- interface implementations ---------------------------------------------- */ -static uint32_t uca_dummy_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data) +static uint32_t uca_dummy_set_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data) { uint32_t err = UCA_ERR_CAMERA | UCA_ERR_PROP; if (cam->state == UCA_CAM_RECORDING) @@ -182,7 +182,7 @@ static uint32_t uca_dummy_set_property(struct uca_camera *cam, enum uca_property return UCA_NO_ERROR; } -static uint32_t uca_dummy_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num) +static uint32_t uca_dummy_get_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data, size_t num) { switch (property) { case UCA_PROP_NAME: @@ -223,7 +223,7 @@ static uint32_t uca_dummy_get_property(struct uca_camera *cam, enum uca_property return UCA_NO_ERROR; } -static uint32_t uca_dummy_start_recording(struct uca_camera *cam) +static uint32_t uca_dummy_start_recording(struct uca_camera_priv *cam) { if (cam->callback != NULL) { #ifdef HAVE_PTHREADS @@ -239,7 +239,7 @@ static uint32_t uca_dummy_start_recording(struct uca_camera *cam) return UCA_NO_ERROR; } -static uint32_t uca_dummy_stop_recording(struct uca_camera *cam) +static uint32_t uca_dummy_stop_recording(struct uca_camera_priv *cam) { struct dummy_cam *dc = GET_DUMMY(cam); if (cam->callback != NULL) { @@ -251,7 +251,7 @@ static uint32_t uca_dummy_stop_recording(struct uca_camera *cam) return UCA_NO_ERROR; } -static uint32_t uca_dummy_register_callback(struct uca_camera *cam, uca_cam_grab_callback cb, void *user) +static uint32_t uca_dummy_register_callback(struct uca_camera_priv *cam, uca_cam_grab_callback cb, void *user) { if (cam->callback == NULL) { cam->callback = cb; @@ -263,7 +263,7 @@ static uint32_t uca_dummy_register_callback(struct uca_camera *cam, uca_cam_grab return UCA_NO_ERROR; } -static uint32_t uca_dummy_grab(struct uca_camera *cam, char *buffer, void *meta_data) +static uint32_t uca_dummy_grab(struct uca_camera_priv *cam, char *buffer, void *meta_data) { if (cam->callback != NULL) return UCA_ERR_CAMERA | UCA_ERR_CALLBACK | UCA_ERR_ALREADY_REGISTERED; @@ -273,7 +273,7 @@ static uint32_t uca_dummy_grab(struct uca_camera *cam, char *buffer, void *meta_ return UCA_NO_ERROR; } -static uint32_t uca_dummy_destroy(struct uca_camera *cam) +static uint32_t uca_dummy_destroy(struct uca_camera_priv *cam) { struct dummy_cam *dc = GET_DUMMY(cam); free(dc->buffer); @@ -281,14 +281,14 @@ static uint32_t uca_dummy_destroy(struct uca_camera *cam) return UCA_NO_ERROR; } -static uint32_t uca_dummy_ignore(struct uca_camera *cam) +static uint32_t uca_dummy_ignore(struct uca_camera_priv *cam) { return UCA_NO_ERROR; } -uint32_t uca_dummy_init(struct uca_camera **cam, struct uca_grabber *grabber) +uint32_t uca_dummy_init(struct uca_camera_priv **cam, struct uca_grabber_priv *grabber) { - struct uca_camera *uca = uca_cam_new(); + struct uca_camera_priv *uca = uca_cam_new(); uca->destroy = &uca_dummy_destroy; uca->set_property = &uca_dummy_set_property; diff --git a/src/cameras/dummy.h b/src/cameras/dummy.h index ebd2d48..afc6af4 100644 --- a/src/cameras/dummy.h +++ b/src/cameras/dummy.h @@ -1,6 +1,6 @@ #ifndef __UNIFIED_CAMERA_ACCESS_DUMMY_H #define __UNIFIED_CAMERA_ACCESS_DUMMY_H -uint32_t uca_dummy_init(struct uca_camera **uca, struct uca_grabber *grabber); +uint32_t uca_dummy_init(struct uca_camera_priv **uca, struct uca_grabber_priv *grabber); #endif diff --git a/src/cameras/ipe.c b/src/cameras/ipe.c index 1032f54..a2fa6f6 100644 --- a/src/cameras/ipe.c +++ b/src/cameras/ipe.c @@ -14,12 +14,12 @@ static void uca_ipe_handle_error(const char *format, ...) /* Do nothing, we just check errno. */ } -static uint32_t uca_ipe_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data) +static uint32_t uca_ipe_set_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data) { return UCA_NO_ERROR; } -static uint32_t uca_ipe_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num) +static uint32_t uca_ipe_get_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data, size_t num) { pcilib_t *handle = GET_HANDLE(cam); pcilib_register_value_t value = 0; @@ -78,22 +78,22 @@ static uint32_t uca_ipe_get_property(struct uca_camera *cam, enum uca_property_i return UCA_NO_ERROR; } -static uint32_t uca_ipe_start_recording(struct uca_camera *cam) +static uint32_t uca_ipe_start_recording(struct uca_camera_priv *cam) { return UCA_NO_ERROR; } -static uint32_t uca_ipe_stop_recording(struct uca_camera *cam) +static uint32_t uca_ipe_stop_recording(struct uca_camera_priv *cam) { return UCA_NO_ERROR; } -static uint32_t uca_ipe_grab(struct uca_camera *cam, char *buffer, void *meta_data) +static uint32_t uca_ipe_grab(struct uca_camera_priv *cam, char *buffer, void *meta_data) { return UCA_NO_ERROR; } -static uint32_t uca_ipe_register_callback(struct uca_camera *cam, uca_cam_grab_callback cb, void *user) +static uint32_t uca_ipe_register_callback(struct uca_camera_priv *cam, uca_cam_grab_callback cb, void *user) { if (cam->callback == NULL) { cam->callback = cb; @@ -103,13 +103,13 @@ static uint32_t uca_ipe_register_callback(struct uca_camera *cam, uca_cam_grab_c return UCA_ERR_CAMERA | UCA_ERR_CALLBACK | UCA_ERR_ALREADY_REGISTERED; } -static uint32_t uca_ipe_destroy(struct uca_camera *cam) +static uint32_t uca_ipe_destroy(struct uca_camera_priv *cam) { pcilib_close(GET_HANDLE(cam)); return UCA_NO_ERROR; } -uint32_t uca_ipe_init(struct uca_camera **cam, struct uca_grabber *grabber) +uint32_t uca_ipe_init(struct uca_camera_priv **cam, struct uca_grabber_priv *grabber) { pcilib_model_t model = PCILIB_MODEL_DETECT; pcilib_t *handle = pcilib_open("/dev/fpga0", model); @@ -119,7 +119,7 @@ uint32_t uca_ipe_init(struct uca_camera **cam, struct uca_grabber *grabber) pcilib_set_error_handler(&uca_ipe_handle_error, &uca_ipe_handle_error); model = pcilib_get_model(handle); - struct uca_camera *uca = uca_cam_new(); + struct uca_camera_priv *uca = uca_cam_new(); /* Camera found, set function pointers... */ uca->destroy = &uca_ipe_destroy; diff --git a/src/cameras/ipe.h b/src/cameras/ipe.h index 4fc39bd..c911402 100644 --- a/src/cameras/ipe.h +++ b/src/cameras/ipe.h @@ -1,6 +1,6 @@ #ifndef __UNIFIED_CAMERA_ACCESS_IPE_H #define __UNIFIED_CAMERA_ACCESS_IPE_H -uint32_t uca_ipe_init(struct uca_camera **uca, struct uca_grabber *grabber); +uint32_t uca_ipe_init(struct uca_camera_priv **uca, struct uca_grabber_priv *grabber); #endif diff --git a/src/cameras/pco.c b/src/cameras/pco.c index f6efd81..9de6467 100644 --- a/src/cameras/pco.c +++ b/src/cameras/pco.c @@ -18,7 +18,7 @@ typedef struct pco_desc { #define uca_set_void(p, type, value) { *((type *) p) = (type) value; } -static uint32_t uca_pco_set_exposure(struct uca_camera *cam, uint32_t *exposure) +static uint32_t uca_pco_set_exposure(struct uca_camera_priv *cam, uint32_t *exposure) { uint32_t err = UCA_ERR_CAMERA | UCA_ERR_PROP; uint32_t e, d; @@ -29,7 +29,7 @@ static uint32_t uca_pco_set_exposure(struct uca_camera *cam, uint32_t *exposure) return UCA_NO_ERROR; } -static uint32_t uca_pco_set_delay(struct uca_camera *cam, uint32_t *delay) +static uint32_t uca_pco_set_delay(struct uca_camera_priv *cam, uint32_t *delay) { uint32_t err = UCA_ERR_CAMERA | UCA_ERR_PROP; uint32_t e, d; @@ -40,7 +40,7 @@ static uint32_t uca_pco_set_delay(struct uca_camera *cam, uint32_t *delay) return UCA_NO_ERROR; } -static uint32_t uca_pco_destroy(struct uca_camera *cam) +static uint32_t uca_pco_destroy(struct uca_camera_priv *cam) { pco_set_rec_state(GET_PCO(cam), 0); pco_destroy(GET_PCO(cam)); @@ -48,9 +48,9 @@ static uint32_t uca_pco_destroy(struct uca_camera *cam) return UCA_NO_ERROR; } -static uint32_t uca_pco_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data) +static uint32_t uca_pco_set_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data) { - struct uca_grabber *grabber = cam->grabber; + struct uca_grabber_priv *grabber = cam->grabber; struct pco_desc *pco_d = GET_PCO_DESC(cam); uint32_t err = UCA_ERR_CAMERA | UCA_ERR_PROP; @@ -97,10 +97,10 @@ static uint32_t uca_pco_set_property(struct uca_camera *cam, enum uca_property_i } -static uint32_t uca_pco_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num) +static uint32_t uca_pco_get_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data, size_t num) { struct pco_edge *pco = GET_PCO(cam); - struct uca_grabber *grabber = cam->grabber; + struct uca_grabber_priv *grabber = cam->grabber; switch (property) { case UCA_PROP_NAME: @@ -225,7 +225,7 @@ static uint32_t uca_pco_get_property(struct uca_camera *cam, enum uca_property_i return UCA_NO_ERROR; } -static uint32_t uca_pco_start_recording(struct uca_camera *cam) +static uint32_t uca_pco_start_recording(struct uca_camera_priv *cam) { uint32_t err = UCA_ERR_CAMERA | UCA_ERR_INIT; if (cam->state == UCA_CAM_RECORDING) @@ -241,7 +241,7 @@ static uint32_t uca_pco_start_recording(struct uca_camera *cam) return cam->grabber->acquire(cam->grabber, -1); } -static uint32_t uca_pco_stop_recording(struct uca_camera *cam) +static uint32_t uca_pco_stop_recording(struct uca_camera_priv *cam) { if ((cam->state == UCA_CAM_RECORDING) && (pco_set_rec_state(GET_PCO(cam), 0) != PCO_NOERROR)) return UCA_ERR_CAMERA | UCA_ERR_INIT | UCA_ERR_UNCLASSIFIED; @@ -250,7 +250,7 @@ static uint32_t uca_pco_stop_recording(struct uca_camera *cam) return UCA_NO_ERROR; } -static uint32_t uca_pco_trigger(struct uca_camera *cam) +static uint32_t uca_pco_trigger(struct uca_camera_priv *cam) { if (cam->state != UCA_CAM_RECORDING) return UCA_ERR_CAMERA | UCA_ERR_TRIGGER | UCA_ERR_NOT_RECORDING; @@ -258,7 +258,7 @@ static uint32_t uca_pco_trigger(struct uca_camera *cam) return cam->grabber->trigger(cam->grabber); } -static uint32_t uca_pco_grab(struct uca_camera *cam, char *buffer, void *meta_data) +static uint32_t uca_pco_grab(struct uca_camera_priv *cam, char *buffer, void *meta_data) { if (cam->state != UCA_CAM_RECORDING) return UCA_ERR_CAMERA | UCA_ERR_NOT_RECORDING; @@ -272,7 +272,7 @@ static uint32_t uca_pco_grab(struct uca_camera *cam, char *buffer, void *meta_da return UCA_NO_ERROR; } -static uint32_t uca_pco_register_callback(struct uca_camera *cam, uca_cam_grab_callback callback, void *user) +static uint32_t uca_pco_register_callback(struct uca_camera_priv *cam, uca_cam_grab_callback callback, void *user) { if (cam->callback == NULL) { cam->callback = callback; @@ -282,7 +282,7 @@ static uint32_t uca_pco_register_callback(struct uca_camera *cam, uca_cam_grab_c return UCA_ERR_CAMERA | UCA_ERR_CALLBACK | UCA_ERR_ALREADY_REGISTERED; } -uint32_t uca_pco_init(struct uca_camera **cam, struct uca_grabber *grabber) +uint32_t uca_pco_init(struct uca_camera_priv **cam, struct uca_grabber_priv *grabber) { uint32_t err = UCA_ERR_CAMERA | UCA_ERR_INIT; if (grabber == NULL) @@ -297,7 +297,7 @@ uint32_t uca_pco_init(struct uca_camera **cam, struct uca_grabber *grabber) return err | UCA_ERR_NOT_FOUND; } - struct uca_camera *uca = uca_cam_new(); + struct uca_camera_priv *uca = uca_cam_new(); uca->grabber = grabber; uca->grabber->synchronous = false; diff --git a/src/cameras/pco.h b/src/cameras/pco.h index d8c2b07..194ea6c 100644 --- a/src/cameras/pco.h +++ b/src/cameras/pco.h @@ -1,6 +1,6 @@ #ifndef __UNIFIED_CAMERA_ACCESS_PCO_H #define __UNIFIED_CAMERA_ACCESS_PCO_H -uint32_t uca_pco_init(struct uca_camera **uca, struct uca_grabber *grabber); +uint32_t uca_pco_init(struct uca_camera_priv **uca, struct uca_grabber_priv *grabber); #endif diff --git a/src/cameras/pf.c b/src/cameras/pf.c index 5a87380..32ca834 100644 --- a/src/cameras/pf.c +++ b/src/cameras/pf.c @@ -47,9 +47,9 @@ static int uca_pf_set_uint32_property(TOKEN token, void *data, uint32_t *update_ return pfDevice_SetProperty(0, token, &value); } -static uint32_t uca_pf_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data) +static uint32_t uca_pf_set_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data) { - struct uca_grabber *grabber = cam->grabber; + struct uca_grabber_priv *grabber = cam->grabber; TOKEN token = INVALID_TOKEN; int i = 0; int err = UCA_NO_ERROR; @@ -105,7 +105,7 @@ static uint32_t uca_pf_set_property(struct uca_camera *cam, enum uca_property_id } -static uint32_t uca_pf_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num) +static uint32_t uca_pf_get_property(struct uca_camera_priv *cam, enum uca_property_ids property, void *data, size_t num) { TOKEN t; /* You gotta love developers who name types capitalized... */ PFValue value; @@ -161,22 +161,22 @@ static uint32_t uca_pf_get_property(struct uca_camera *cam, enum uca_property_id return cam->grabber->get_property(cam->grabber, property, data); } -static uint32_t uca_pf_start_recording(struct uca_camera *cam) +static uint32_t uca_pf_start_recording(struct uca_camera_priv *cam) { return cam->grabber->acquire(cam->grabber, -1); } -static uint32_t uca_pf_stop_recording(struct uca_camera *cam) +static uint32_t uca_pf_stop_recording(struct uca_camera_priv *cam) { return cam->grabber->stop_acquire(cam->grabber); } -static uint32_t uca_pf_trigger(struct uca_camera *cam) +static uint32_t uca_pf_trigger(struct uca_camera_priv *cam) { return cam->grabber->trigger(cam->grabber); } -static uint32_t uca_pf_grab(struct uca_camera *cam, char *buffer, void *metadata) +static uint32_t uca_pf_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); @@ -187,7 +187,7 @@ static uint32_t uca_pf_grab(struct uca_camera *cam, char *buffer, void *metadata return UCA_NO_ERROR; } -static uint32_t uca_pf_register_callback(struct uca_camera *cam, uca_cam_grab_callback callback, void *user) +static uint32_t uca_pf_register_callback(struct uca_camera_priv *cam, uca_cam_grab_callback callback, void *user) { if (cam->callback == NULL) { cam->callback = callback; @@ -197,13 +197,13 @@ static uint32_t uca_pf_register_callback(struct uca_camera *cam, uca_cam_grab_ca return UCA_ERR_CAMERA | UCA_ERR_CALLBACK | UCA_ERR_ALREADY_REGISTERED; } -static uint32_t uca_pf_destroy(struct uca_camera *cam) +static uint32_t uca_pf_destroy(struct uca_camera_priv *cam) { pfDeviceClose(0); return UCA_NO_ERROR; } -uint32_t uca_pf_init(struct uca_camera **cam, struct uca_grabber *grabber) +uint32_t uca_pf_init(struct uca_camera_priv **cam, struct uca_grabber_priv *grabber) { int num_ports; if ((grabber == NULL) || (pfPortInit(&num_ports) < 0) || (pfDeviceOpen(0) < 0)) @@ -212,7 +212,7 @@ uint32_t uca_pf_init(struct uca_camera **cam, struct uca_grabber *grabber) /* We could check if a higher baud rate is supported, but... forget about * it. We don't need high speed configuration. */ - struct uca_camera *uca = uca_cam_new(); + struct uca_camera_priv *uca = uca_cam_new(); uca->grabber = grabber; uca->grabber->synchronous = false; diff --git a/src/cameras/pf.h b/src/cameras/pf.h index d7bf85b..c5d4918 100644 --- a/src/cameras/pf.h +++ b/src/cameras/pf.h @@ -1,6 +1,6 @@ #ifndef __UNIFIED_CAMERA_ACCESS_PHOTON_H #define __UNIFIED_CAMERA_ACCESS_PHOTON_H -uint32_t uca_pf_init(struct uca_camera **uca, struct uca_grabber *grabber); +uint32_t uca_pf_init(struct uca_camera_priv **uca, struct uca_grabber_priv *grabber); #endif diff --git a/src/grabbers/me4.c b/src/grabbers/me4.c index f0120bb..1117fbf 100644 --- a/src/grabbers/me4.c +++ b/src/grabbers/me4.c @@ -52,7 +52,7 @@ static struct uca_sisofg_map_t uca_to_fg[] = { #define GET_FG(grabber) (((struct fg_apc_data *) grabber->user)->fg) #define GET_MEM(grabber) (((struct fg_apc_data *) grabber->user)->mem) -static uint32_t uca_me4_destroy(struct uca_grabber *grabber) +static uint32_t uca_me4_destroy(struct uca_grabber_priv *grabber) { if (grabber != NULL) { Fg_FreeMemEx(GET_FG(grabber), GET_MEM(grabber)); @@ -85,7 +85,7 @@ static struct uca_sisofg_map_t *uca_me4_find_uca_property(int fg_id) return NULL; } -static uint32_t uca_me4_set_property(struct uca_grabber *grabber, int32_t property, void *data) +static uint32_t uca_me4_set_property(struct uca_grabber_priv *grabber, int32_t property, void *data) { /* Handle all properties not related specifically to the me4 */ union uca_value *v = (union uca_value *) data; @@ -123,7 +123,7 @@ static uint32_t uca_me4_set_property(struct uca_grabber *grabber, int32_t proper UCA_NO_ERROR : err | UCA_ERR_INVALID; } -static uint32_t uca_me4_get_property(struct uca_grabber *grabber, int32_t property, void *data) +static uint32_t uca_me4_get_property(struct uca_grabber_priv *grabber, int32_t property, void *data) { switch (property) { case UCA_PROP_GRAB_SYNCHRONOUS: @@ -157,7 +157,7 @@ static uint32_t uca_me4_get_property(struct uca_grabber *grabber, int32_t proper UCA_NO_ERROR : err | UCA_ERR_INVALID; } -static uint32_t uca_me4_alloc(struct uca_grabber *grabber, uint32_t pixel_size, uint32_t n_buffers) +static uint32_t uca_me4_alloc(struct uca_grabber_priv *grabber, uint32_t pixel_size, uint32_t n_buffers) { dma_mem *mem = GET_MEM(grabber); /* If buffers are already allocated, we are freeing every buffer and start @@ -177,7 +177,7 @@ static uint32_t uca_me4_alloc(struct uca_grabber *grabber, uint32_t pixel_size, return UCA_ERR_GRABBER | UCA_ERR_NO_MEMORY; } -static uint32_t uca_me4_acquire(struct uca_grabber *grabber, int32_t n_frames) +static uint32_t uca_me4_acquire(struct uca_grabber_priv *grabber, int32_t n_frames) { if (GET_MEM(grabber) == NULL) return UCA_ERR_GRABBER | UCA_ERR_NO_MEMORY; @@ -189,7 +189,7 @@ static uint32_t uca_me4_acquire(struct uca_grabber *grabber, int32_t n_frames) return UCA_ERR_GRABBER | UCA_ERR_ACQUIRE; } -static uint32_t uca_me4_stop_acquire(struct uca_grabber *grabber) +static uint32_t uca_me4_stop_acquire(struct uca_grabber_priv *grabber) { if (GET_MEM(grabber) != NULL) if (Fg_stopAcquireEx(GET_FG(grabber), 0, GET_MEM(grabber), STOP_SYNC) != FG_OK) @@ -197,14 +197,14 @@ static uint32_t uca_me4_stop_acquire(struct uca_grabber *grabber) return UCA_NO_ERROR; } -static uint32_t uca_me4_trigger(struct uca_grabber *grabber) +static uint32_t uca_me4_trigger(struct uca_grabber_priv *grabber) { if (Fg_sendSoftwareTrigger(GET_FG(grabber), PORT_A) != FG_OK) return UCA_ERR_GRABBER | UCA_ERR_TRIGGER; return UCA_NO_ERROR; } -static uint32_t uca_me4_grab(struct uca_grabber *grabber, void **buffer, uint64_t *frame_number) +static uint32_t uca_me4_grab(struct uca_grabber_priv *grabber, void **buffer, uint64_t *frame_number) { static frameindex_t last_frame = 0; struct fg_apc_data *me4 = (struct fg_apc_data *) grabber->user; @@ -228,7 +228,7 @@ static int uca_me4_callback(frameindex_t frame, struct fg_apc_data *apc) return 0; } -static uint32_t uca_me4_register_callback(struct uca_grabber *grabber, uca_cam_grab_callback callback, void *meta_data, void *user) +static uint32_t uca_me4_register_callback(struct uca_grabber_priv *grabber, uca_cam_grab_callback callback, void *meta_data, void *user) { if (GET_MEM(grabber) == NULL) return UCA_ERR_GRABBER | UCA_ERR_CALLBACK | UCA_ERR_NO_MEMORY; @@ -257,14 +257,14 @@ static uint32_t uca_me4_register_callback(struct uca_grabber *grabber, uca_cam_g return UCA_NO_ERROR; } -uint32_t uca_me4_init(struct uca_grabber **grabber) +uint32_t uca_me4_init(struct uca_grabber_priv **grabber) { Fg_Struct *fg = Fg_Init("libFullAreaGray8.so", 0); if (fg == NULL) return UCA_ERR_GRABBER | UCA_ERR_NOT_FOUND; - struct uca_grabber *uca = (struct uca_grabber *) malloc(sizeof(struct uca_grabber)); - memset(uca, 0, sizeof(struct uca_grabber)); + struct uca_grabber_priv *uca = (struct uca_grabber_priv *) malloc(sizeof(struct uca_grabber_priv)); + memset(uca, 0, sizeof(struct uca_grabber_priv)); struct fg_apc_data *me4 = (struct fg_apc_data *) malloc(sizeof(struct fg_apc_data)); memset(me4, 0, sizeof(struct fg_apc_data)); diff --git a/src/grabbers/me4.h b/src/grabbers/me4.h index 4021f6a..96a596b 100644 --- a/src/grabbers/me4.h +++ b/src/grabbers/me4.h @@ -1,6 +1,6 @@ #ifndef __UNIFIED_CAMERA_ACCESS_ME4_H #define __UNIFIED_CAMERA_ACCESS_ME4_H -uint32_t uca_me4_init(struct uca_grabber **grabber); +uint32_t uca_me4_init(struct uca_grabber_priv **grabber); #endif diff --git a/src/uca-cam.c b/src/uca-cam.c index 7b80f56..0225fa1 100644 --- a/src/uca-cam.c +++ b/src/uca-cam.c @@ -5,28 +5,14 @@ #include "uca-cam.h" #include "uca-grabber.h" -uint32_t uca_cam_alloc(struct uca_camera *cam, uint32_t n_buffers) -{ - uint32_t bitdepth; - cam->get_property(cam, UCA_PROP_BITDEPTH, &bitdepth, 0); - const int pixel_size = bitdepth == 8 ? 1 : 2; - if (cam->grabber != NULL) - return cam->grabber->alloc(cam->grabber, pixel_size, n_buffers); - return UCA_NO_ERROR; -} - -enum uca_cam_state uca_cam_get_state(struct uca_camera *cam) -{ - return cam->state; -} -struct uca_camera *uca_cam_new(void) +struct uca_camera_priv *uca_cam_new(void) { - struct uca_camera *cam = (struct uca_camera *) malloc(sizeof(struct uca_camera)); + struct uca_camera_priv *cam = (struct uca_camera_priv *) malloc(sizeof(struct uca_camera_priv)); /* Set all function pointers to NULL so we know early on, if something has * not been implemented. */ - memset(cam, 0, sizeof(struct uca_camera)); + memset(cam, 0, sizeof(struct uca_camera_priv)); cam->state = UCA_CAM_CONFIGURABLE; cam->current_frame = 0; diff --git a/src/uca-cam.h b/src/uca-cam.h index ba5e101..cd97ea9 100644 --- a/src/uca-cam.h +++ b/src/uca-cam.h @@ -11,7 +11,7 @@ extern "C" { * \file uca-cam.h * \brief Abstract camera model * - * The uca_camera_t structure represents a common interface for cameras regardless of + * 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. @@ -31,234 +31,39 @@ enum uca_cam_state { /* * --- non-virtual methods ---------------------------------------------------- */ +typedef uint32_t (*uca_cam_init) (struct uca_camera_priv **cam, struct uca_grabber_priv *grabber); /** - * Allocates buffer memory for the internal frame grabber. - * - * The allocation is just a hint to the underlying camera driver. It might - * ignore this or pass this information on to a related frame grabber. - * - * \param[in] cam A camera structure. - * - * \param[in] n_buffers Number of sub-buffers with size frame_width*frame_height. - */ -/* FIXME: put this into vtable?! */ -uint32_t uca_cam_alloc(struct uca_camera *cam, uint32_t n_buffers); - - -/** - * Retrieve current state of the camera. - * - * \param[in] cam A camera structure. - * - * \return A value from the uca_cam_state enum representing the current state of - * the camera. - */ -enum uca_cam_state uca_cam_get_state(struct uca_camera *cam); - -/** - * Allocates memory for a new uca_camera structure and initializes all fields to + * 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 structure + * \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 *uca_cam_new(void); - -/* - * --- virtual methods -------------------------------------------------------- - */ - -/** - * Function pointer for camera probing and initialization. - * - * \param[out] cam On success, *cam holds the newly created uca_camera_t - * structure. - * - * \param[in] grabber Grabber structure to access the cam. Can be NULL to - * specify devices without frame grabber access. - * - * \return - * UCA_ERR_INIT_NOT_FOUND if camera is not found or could not be initialized - * - * \note This is a private function and should be called exclusively by uca_init(). - */ -typedef uint32_t (*uca_cam_init) (struct uca_camera **cam, struct uca_grabber *grabber); - -/** - * \brief Function pointer to free camera resources. - * - * \param[in] cam The camera to close. - * - * \note This is a private function and should be called exclusively by uca_init(). - */ -typedef uint32_t (*uca_cam_destroy) (struct uca_camera *cam); - -/** - * Function pointer to set a camera property. - * - * \param[in] cam The camera whose properties are to be set. - * - * \param[in] property ID of the property as defined in XXX - * - * \param[out] data Where to read the property's value from - * - * \return UCA_ERR_PROP_INVALID if property is not supported on the camera or - * UCA_ERR_PROP_VALUE_OUT_OF_RANGE if value cannot be set. - */ -typedef uint32_t (*uca_cam_set_property) (struct uca_camera *cam, enum uca_property_ids property, void *data); - -/** - * Function pointer to get a property. - * - * \param[in] cam The camera whose properties are to be retrieved. - * - * \param[in] property ID of the property as defined in XXX - * - * \param[out] data Where to store the property's value - * - * \param[in] num Number of bytes of string storage. Ignored for uca_uint8t - * and uca_uint32t properties. - * - * \return UCA_ERR_PROP_INVALID if property is not supported on the camera - */ -typedef uint32_t (*uca_cam_get_property) (struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num); - -/** - * Begin recording. - * - * Usually this also involves the frame acquisition of the frame grabber but is - * hidden by this function. - */ -typedef uint32_t (*uca_cam_start_recording) (struct uca_camera *cam); - -/** - * Stop recording. - */ -typedef uint32_t (*uca_cam_stop_recording) (struct uca_camera *cam); - -/** - * Send a software trigger signal to start a sensor read-out. - * - * This method is only useful when UCA_PROP_TRIGGER_MODE is set to - * UCA_TRIGGER_SOFTWARE. - */ -typedef uint32_t (*uca_cam_trigger) (struct uca_camera *cam); - -/** - * Function pointer to a grab callback. - * - * Register such a callback function with uca_cam_register_callback() to - * receive data as soon as it is delivered. - * - * \param[in] image_number Current frame number - * - * \param[in] buffer Image data - * - * \param[in] meta_data Meta data provided by the camera specifying per-frame - * data. - * - * \param[in] user User data registered in uca_cam_register_callback() - * - * \note The meta data parameter is not yet specified but just a place holder. - */ -typedef void (*uca_cam_grab_callback) (uint64_t image_number, void *buffer, void *meta_data, void *user); - -/** - * Register callback for given frame grabber. To actually start receiving - * frames, call uca_grabber_acquire(). - * - * \param[in] grabber The grabber for which the callback should be installed - * - * \param[in] callback Callback function for when a frame arrived - * - * \param[in] user User data that is passed to the callback function - */ -typedef uint32_t (*uca_cam_register_callback) (struct uca_camera *cam, uca_cam_grab_callback callback, void *user); - -/** - * \brief Grab one image from the camera - * - * The grabbing involves a memory copy because we might have to decode the image - * coming from the camera, which the frame grabber is not able to do. - * - * \param[in] buffer Destination buffer - * - * \param[in] meta_data Meta data provided by the camera specifying per-frame - * data. - * - * \note The meta data parameter is not yet specified but just a place holder. - * - */ -typedef uint32_t (*uca_cam_grab) (struct uca_camera *cam, char *buffer, void *meta_data); - - +struct uca_camera_priv *uca_cam_new(void); /** * Represents a camera abstraction, that concrete cameras must implement. */ -typedef struct uca_camera { +typedef struct uca_camera_priv { /** * Points to the next available camera in a linked-list fashion. * * End of list is specified with next == NULL. */ - struct uca_camera *next; - - /* Function pointers to camera-specific methods */ - /** - * Method to set a property. - * \see uca_cam_set_property - */ - uca_cam_set_property set_property; - - /** - * Method to get a property. - * \see uca_cam_get_property - */ - uca_cam_get_property get_property; - - /** - * Method to start recording. - * \see uca_cam_start_recording - */ - uca_cam_start_recording start_recording; - - /** - * Method to stop recording. - * \see uca_cam_stop_recording - */ - uca_cam_stop_recording stop_recording; - - /** - * Method to issue a software trigger signal. - * \see uca_cam_trigger - */ - uca_cam_trigger trigger; - - /** - * Method to grab a frame. - * \see uca_cam_grab - */ - uca_cam_grab grab; - - /** - * Method to register an frame acquisition callback. - * - * \see uca_cam_register_callback - */ - uca_cam_register_callback register_callback; - - /* Private */ - /** - * Method to close the camera. - * \see uca_cam_destroy - */ - uca_cam_destroy destroy; - - /* private */ - struct uca_grabber *grabber; /**< grabber associated with this camera */ + struct uca_camera_priv *next; + + uint32_t (*destroy) (struct uca_camera_priv *cam); + uint32_t (*set_property) (struct uca_camera_priv *cam, enum uca_property_ids property, void *data); + uint32_t (*get_property) (struct uca_camera_priv *cam, enum 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 (*grab) (struct uca_camera_priv *cam, char *buffer, void *meta_data); + + struct uca_grabber_priv *grabber; /**< grabber associated with this camera */ enum uca_cam_state state; /**< camera state */ uint32_t frame_width; /**< current frame width */ uint32_t frame_height; /**< current frame height */ @@ -268,7 +73,7 @@ typedef struct uca_camera { void *callback_user; /**< user data for callback */ void *user; /**< private user data to be used by the camera driver */ -} uca_camera_t; +} uca_camera_priv_t; #ifdef __cplusplus diff --git a/src/uca-grabber.h b/src/uca-grabber.h index e8b422a..f30233b 100644 --- a/src/uca-grabber.h +++ b/src/uca-grabber.h @@ -36,38 +36,38 @@ enum uca_grabber_constants { * * \return UCA_ERR_INIT_NOT_FOUND if grabber is not found or could not be initialized */ -typedef uint32_t (*uca_grabber_init) (struct uca_grabber **grabber); +typedef uint32_t (*uca_grabber_init) (struct uca_grabber_priv **grabber); /** * Free frame grabber resouces. */ -typedef uint32_t (*uca_grabber_destroy) (struct uca_grabber *grabber); +typedef uint32_t (*uca_grabber_destroy) (struct uca_grabber_priv *grabber); /** * Set a frame grabber property. * - * \param[in] prop Name of the property as defined in uca_grabber_constants + * \param[in] prop Name of the property as defined in uca_grabber_priv_constants * * \return UCA_ERR_PROP_INVALID if property is not supported on the frame * grabber or UCA_ERR_PROP_VALUE_OUT_OF_RANGE if value cannot be set. */ -typedef uint32_t (*uca_grabber_set_property) (struct uca_grabber *grabber, enum uca_grabber_constants prop, void *data); +typedef uint32_t (*uca_grabber_set_property) (struct uca_grabber_priv *grabber, enum uca_grabber_constants prop, void *data); /** * Get a frame grabber property. * - * \param[in] prop Name of the property as defined in uca_grabber_constants + * \param[in] prop Name of the property as defined in uca_grabber_priv_constants * * \return UCA_ERR_PROP_INVALID if property is not supported on the frame grabber */ -typedef uint32_t (*uca_grabber_get_property) (struct uca_grabber *grabber, enum uca_grabber_constants prop, void *data); +typedef uint32_t (*uca_grabber_get_property) (struct uca_grabber_priv *grabber, enum uca_grabber_constants prop, void *data); /** * Allocate buffers with current width, height and bitdepth. * * \warning Subsequent changes of width and height might corrupt memory. */ -typedef uint32_t (*uca_grabber_alloc) (struct uca_grabber *grabber, uint32_t pixel_size, uint32_t n_buffers); +typedef uint32_t (*uca_grabber_alloc) (struct uca_grabber_priv *grabber, uint32_t pixel_size, uint32_t n_buffers); /** * Begin acquiring frames. @@ -76,17 +76,17 @@ typedef uint32_t (*uca_grabber_alloc) (struct uca_grabber *grabber, uint32_t pix * * \param[in] async Grab asynchronous if true */ -typedef uint32_t (*uca_grabber_acquire) (struct uca_grabber *grabber, int32_t n_frames); +typedef uint32_t (*uca_grabber_acquire) (struct uca_grabber_priv *grabber, int32_t n_frames); /** * Stop acquiring frames. */ -typedef uint32_t (*uca_grabber_stop_acquire) (struct uca_grabber *grabber); +typedef uint32_t (*uca_grabber_stop_acquire) (struct uca_grabber_priv *grabber); /** * Issue a software trigger signal. */ -typedef uint32_t (*uca_grabber_trigger) (struct uca_grabber *grabber); +typedef uint32_t (*uca_grabber_trigger) (struct uca_grabber_priv *grabber); /** * Grab a frame. @@ -97,30 +97,30 @@ typedef uint32_t (*uca_grabber_trigger) (struct uca_grabber *grabber); * * \param[out] frame_number Number of the grabbed frame */ -typedef uint32_t (*uca_grabber_grab) (struct uca_grabber *grabber, void **buffer, uint64_t *frame_number); +typedef uint32_t (*uca_grabber_grab) (struct uca_grabber_priv *grabber, void **buffer, uint64_t *frame_number); /** * Register callback for given frame grabber. To actually start receiving - * frames, call uca_grabber_acquire(). + * frames, call uca_grabber_priv_acquire(). * * \param[in] grabber The grabber for which the callback should be installed * * \param[in] cb Callback function for when a frame arrived */ -typedef uint32_t (*uca_grabber_register_callback) (struct uca_grabber *grabber, uca_cam_grab_callback cb, void *meta_data, void *user); +typedef uint32_t (*uca_grabber_register_callback) (struct uca_grabber_priv *grabber, uca_cam_grab_callback cb, void *meta_data, void *user); /** * Represents a frame grabber abstraction, that concrete frame grabber * implementations must implement. * - * A uca_grabber_t structure is never used directly but only via the + * A uca_grabber_priv_t structure is never used directly but only via the * uca_camera_t interface in order to keep certain duplicated properties in sync * (e.g. image dimensions can be set on frame grabber and camera). */ -typedef struct uca_grabber { - struct uca_grabber *next; +typedef struct uca_grabber_priv { + struct uca_grabber_priv *next; /* Function pointers to grabber-specific methods */ uca_grabber_destroy destroy; @@ -135,9 +135,9 @@ typedef struct uca_grabber { /* Private */ uca_cam_grab_callback callback; - bool synchronous; /**< if true uca_grabber_grab() blocks until image is transferred */ + bool synchronous; /**< if true uca_grabber_priv_grab() blocks until image is transferred */ void *user; -} uca_grabber_t; +} uca_grabber_priv_t; @@ -136,10 +136,10 @@ struct uca *uca_init(const char *config_filename) /* Probe each frame grabber that is configured */ int i = 0; - struct uca_grabber *grabber = NULL; + struct uca_grabber_priv *grabber = NULL; while (grabber_inits[i] != NULL) { uca_grabber_init init = grabber_inits[i]; - /* FIXME: we don't only want to take the first one */ + /* FIXME: we don't want to take the only first one */ if (init(&grabber) == UCA_NO_ERROR) break; i++; @@ -150,23 +150,30 @@ struct uca *uca_init(const char *config_filename) * therefore we also probe each camera against the NULL grabber. However, * each camera must make sure to check for such a situation. */ - g_uca->grabbers = grabber; - if (grabber != NULL) - grabber->next = NULL; + if (grabber != NULL) { + g_uca->grabbers = (struct uca_grabber *) malloc(sizeof(struct uca_grabber)); + g_uca->grabbers->priv = grabber; + g_uca->grabbers->next = NULL; + } i = 0; struct uca_camera *current = NULL; /* Probe each camera that is configured and append a found camera to the * linked list. */ while (cam_inits[i] != NULL) { - struct uca_camera *cam = NULL; + struct uca_camera_priv *cam = NULL; uca_cam_init init = cam_inits[i]; if (init(&cam, grabber) == UCA_NO_ERROR) { - if (current == NULL) - g_uca->cameras = current = cam; + if (current == NULL) { + g_uca->cameras = (struct uca_camera *) malloc(sizeof(struct uca_camera)); + g_uca->cameras->priv = cam; + g_uca->cameras->next = NULL; + current = g_uca->cameras; + } else { - current->next = cam; - current = cam; + current->next = (struct uca_camera *) malloc(sizeof(struct uca_camera)); + current->next->priv = cam; + current = current->next; } current->next = NULL; } @@ -188,19 +195,23 @@ void uca_destroy(struct uca *u) uca_lock(); if (u != NULL) { struct uca_camera *cam = u->cameras, *tmp; + struct uca_camera_priv *cam_priv; while (cam != NULL) { tmp = cam; - cam->destroy(cam); + cam_priv = cam->priv; + cam_priv->destroy(cam_priv); cam = cam->next; free(tmp); } struct uca_grabber *grabber = u->grabbers, *tmpg; + struct uca_grabber_priv *grabber_priv; while (grabber != NULL) { tmpg = grabber; - grabber->destroy(grabber); + grabber_priv = grabber->priv; + grabber_priv->destroy(grabber_priv); grabber = grabber->next; - free(grabber); + free(tmpg); } free(u); @@ -234,3 +245,63 @@ const char* uca_get_property_name(enum uca_property_ids property_id) return property_map[property_id].name; return UCA_NO_ERROR; } + +uint32_t uca_cam_alloc(struct uca_camera *cam, uint32_t n_buffers) +{ + uint32_t bitdepth; + struct uca_camera_priv *priv = cam->priv; + priv->get_property(priv, UCA_PROP_BITDEPTH, &bitdepth, 0); + const int pixel_size = bitdepth == 8 ? 1 : 2; + if (priv->grabber != NULL) + return priv->grabber->alloc(priv->grabber, pixel_size, n_buffers); + return UCA_NO_ERROR; +} + +enum uca_cam_state uca_cam_get_state(struct uca_camera *cam) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->state; +} + +uint32_t uca_cam_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->set_property(priv, property, data); +} + +uint32_t uca_cam_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->get_property(priv, property, data, num); +} + +uint32_t uca_cam_start_recording(struct uca_camera *cam) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->start_recording(priv); +} + +uint32_t uca_cam_stop_recording(struct uca_camera *cam) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->stop_recording(priv); +} + +uint32_t uca_cam_trigger(struct uca_camera *cam) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->trigger(priv); +} + +uint32_t uca_cam_register_callback(struct uca_camera *cam, uca_cam_grab_callback callback, void *user) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->register_callback(priv, callback, user); +} + +uint32_t uca_cam_grab(struct uca_camera *cam, char *buffer, void *meta_data) +{ + struct uca_camera_priv *priv = cam->priv; + return priv->grab(priv, buffer, meta_data); +} + @@ -212,6 +212,22 @@ union uca_value { char *string; }; +/** + * Grab callback. + * + * Register such a callback function with uca_cam_register_callback() to + * receive data as soon as it is delivered. + * + * \param[in] image_number Current frame number + * \param[in] buffer Image data + * \param[in] meta_data Meta data provided by the camera specifying per-frame + * data. + * \param[in] user User data registered in uca_cam_register_callback() + * + * \note The meta data parameter is not yet specified but just a place holder. + */ +typedef void (*uca_cam_grab_callback) (uint64_t image_number, void *buffer, void *meta_data, void *user); + extern const char *uca_unit_map[]; /**< maps unit numbers to corresponding strings */ @@ -264,13 +280,27 @@ extern const char *uca_unit_map[]; /**< maps unit numbers to corresponding #define UCA_ERR_FRAME_TRANSFER 0x10000009 #define UCA_ERR_ALREADY_REGISTERED 0x1000000A +struct uca_camera_priv; +/** + * uca_camera is an opaque structure that is only accessed with the uca_cam_* + * methods. + */ +struct uca_camera { + struct uca_camera *next; + struct uca_camera_priv* priv; +}; + +struct uca_grabber_priv; +struct uca_grabber { + struct uca_grabber *next; + struct uca_grabber_priv* priv; +}; + /** * Keeps a list of cameras and grabbers. */ typedef struct uca { struct uca_camera *cameras; - - /* private */ struct uca_grabber *grabbers; } uca_t; @@ -309,6 +339,113 @@ const char* uca_get_property_name(enum uca_property_ids property_id); */ uca_property_t *uca_get_full_property(enum uca_property_ids property_id); +/** + * Allocates buffer memory for the internal frame grabber. + * + * The allocation is just a hint to the underlying camera driver. It might + * ignore this or pass this information on to a related frame grabber. + * + * \param[in] cam A uca_camera object + * \param[in] n_buffers Number of sub-buffers with size frame_width*frame_height. + * \return Error code + */ +uint32_t uca_cam_alloc(struct uca_camera *cam, uint32_t n_buffers); + +/** + * Retrieve current state of the camera. + * + * \param[in] cam A uca_camera object + * \return A value from the uca_cam_state enum representing the current state of + * the camera. + */ +enum uca_cam_state uca_cam_get_state(struct uca_camera *cam); + + +/** + * Set a camera property. + * + * \param[in] cam The camera whose properties are to be set. + * \param[in] cam A uca_camera object + * \param[in] property ID of the property as defined in XXX + * \param[out] data Where to read the property's value from + * + * \return UCA_ERR_PROP_INVALID if property is not supported on the camera or + * UCA_ERR_PROP_VALUE_OUT_OF_RANGE if value cannot be set. + */ +uint32_t uca_cam_set_property(struct uca_camera *cam, enum uca_property_ids property, void *data); + +/** + * Get a property. + * + * \param[in] cam A uca_camera object + * \param[in] property ID of the property as defined in XXX + * \param[out] data Where to store the property's value + * \param[in] num Number of bytes of string storage. Ignored for uca_uint8t + * and uca_uint32t properties. + * + * \return UCA_ERR_PROP_INVALID if property is not supported on the camera + */ +uint32_t uca_cam_get_property(struct uca_camera *cam, enum uca_property_ids property, void *data, size_t num); + +/** + * Begin recording. + * + * Usually this also involves the frame acquisition of the frame grabber but is + * hidden by this function. + * + * \param[in] cam A uca_camera object + * \return Error code + */ +uint32_t uca_cam_start_recording(struct uca_camera *cam); + +/** + * Stop recording. + * + * \param[in] cam A uca_camera object + * \return Error code + */ +uint32_t uca_cam_stop_recording(struct uca_camera *cam); + +/** + * Send a software trigger signal to start a sensor read-out. + * + * This method is only useful when UCA_PROP_TRIGGER_MODE is set to + * UCA_TRIGGER_SOFTWARE. + * + * \param[in] cam A uca_camera object + * \return Error code + */ +uint32_t uca_cam_trigger(struct uca_camera *cam); + + +/** + * Register callback for given frame grabber. To actually start receiving + * frames, call uca_grabber_acquire(). + * + * \param[in] cam A uca_camera object + * \param[in] callback Callback function for when a frame arrived + * \param[in] user User data that is passed to the callback function + * \return Error code + */ +uint32_t uca_cam_register_callback(struct uca_camera *cam, uca_cam_grab_callback callback, void *user); + +/** + * \brief Grab one image from the camera + * + * The grabbing involves a memory copy because we might have to decode the image + * coming from the camera, which the frame grabber is not able to do. + * + * \param[in] cam A uca_camera object + * \param[in] buffer Destination buffer + * \param[in] meta_data Meta data provided by the camera specifying per-frame + * data. + * \return Error code + * + * \note The meta data parameter is not yet specified but just a place holder. + * + */ +uint32_t uca_cam_grab(struct uca_camera *cam, char *buffer, void *meta_data); + #define uca_set_void(p, type, value) { *((type *) p) = (type) value; } #ifdef __cplusplus |