diff options
Diffstat (limited to 'src/cameras/dummy.c')
| -rw-r--r-- | src/cameras/dummy.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/cameras/dummy.c b/src/cameras/dummy.c new file mode 100644 index 0000000..93952a9 --- /dev/null +++ b/src/cameras/dummy.c @@ -0,0 +1,201 @@ + +#include <stdlib.h> +#include <string.h> +#include "uca.h" +#include "uca-cam.h" +#include "uca-grabber.h" + +struct dummy_cam_t { + uint32_t width; + uint32_t height; + uint32_t bitdepth; + uint32_t framerate; + uint32_t current_frame; + char* buffer; +}; + +#define GET_DUMMY(uca) ((struct dummy_cam_t *)(uca->user)) +#define set_void(p, type, value) { *((type *) p) = value; } + +static uint32_t uca_dummy_set_property(struct uca_camera_t *cam, enum uca_property_ids property, void *data) +{ + return UCA_NO_ERROR; +} + +static uint32_t uca_dummy_get_property(struct uca_camera_t *cam, enum uca_property_ids property, void *data) +{ + struct dummy_cam_t *dummy_cam = (struct dummy_cam_t *) cam->user; + + switch (property) { + case UCA_PROP_NAME: + strcpy((char *) data, "dummy"); + break; + + case UCA_PROP_WIDTH: + set_void(data, uint32_t, dummy_cam->width); + break; + + case UCA_PROP_WIDTH_MIN: + set_void(data, uint32_t, 1); + break; + + case UCA_PROP_WIDTH_MAX: + set_void(data, uint32_t, 4096); + break; + + case UCA_PROP_HEIGHT: + set_void(data, uint32_t, dummy_cam->height); + break; + + case UCA_PROP_HEIGHT_MIN: + set_void(data, uint32_t, 1); + break; + + case UCA_PROP_HEIGHT_MAX: + set_void(data, uint32_t, 4096); + break; + + case UCA_PROP_BITDEPTH: + set_void(data, uint32_t, 8); + break; + + default: + return UCA_ERR_PROP_INVALID; + } + return UCA_NO_ERROR; +} + +uint32_t uca_dummy_start_recording(struct uca_camera_t *cam) +{ + GET_DUMMY(cam)->current_frame = 0; + return UCA_NO_ERROR; +} + +uint32_t uca_dummy_stop_recording(struct uca_camera_t *cam) +{ + return UCA_NO_ERROR; +} + +static const char digits[10][20] = { + /* 0 */ + { 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0xff, 0x00, 0x00, 0xff, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0x00 }, + /* 1 */ + { 0x00, 0x00, 0xff, 0x00, + 0x00, 0xff, 0xff, 0x00, + 0x00, 0x00, 0xff, 0x00, + 0x00, 0x00, 0xff, 0x00, + 0x00, 0x00, 0xff, 0x00 }, + /* 2 */ + { 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0x00, 0xff, 0x00, + 0x00, 0xff, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff }, + /* 3 */ + { 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0x00, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0x00 }, + /* 4 */ + { 0xff, 0x00, 0x00, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0x00, 0x00, 0x00, 0xff, + 0x00, 0x00, 0x00, 0xff }, + /* 5 */ + { 0xff, 0xff, 0xff, 0xff, + 0xff, 0x00, 0x00, 0x00, + 0x00, 0xff, 0xff, 0x00, + 0x00, 0x00, 0x00, 0xff, + 0xff, 0xff, 0xff, 0x00 }, + /* 6 */ + { 0x00, 0xff, 0xff, 0xff, + 0xff, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0x00 }, + /* 7 */ + { 0xff, 0xff, 0xff, 0xff, + 0x00, 0x00, 0x00, 0xff, + 0x00, 0x00, 0xff, 0x00, + 0x00, 0xff, 0x00, 0x00, + 0xff, 0x00, 0x00, 0x00 }, + /* 8 */ + { 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0x00 }, + /* 9 */ + { 0x00, 0xff, 0xff, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0xff, 0xff, + 0x00, 0x00, 0x00, 0xff, + 0xff, 0xff, 0xff, 0x00 } +}; + +static void uca_dummy_print_number(struct dummy_cam_t *dummy, int number, int x, int y) +{ + const int digit_width = 4; + const int digit_height = 5; + char *buffer = dummy->buffer; + for (int i = 0; i < digit_width; i++) { + for (int j = 0; j < digit_height; j++) { + buffer[(y+j)*dummy->width + (x+i)] = digits[number][j*digit_width+i]; + } + } +} + +uint32_t uca_dummy_grab(struct uca_camera_t *cam, char *buffer) +{ + struct dummy_cam_t *dummy = GET_DUMMY(cam); + dummy->buffer = buffer; + + /* print current frame number */ + unsigned int number = dummy->current_frame; + unsigned int divisor = 100000000; + int x = 10; + while (divisor > 1) { + uca_dummy_print_number(dummy, number / divisor, x, 10); + number = number % divisor; + divisor = divisor / 10; + x += 5; + } + dummy->current_frame++; + return UCA_NO_ERROR; +} + +static uint32_t uca_dummy_destroy(struct uca_camera_t *cam) +{ + return UCA_NO_ERROR; +} + +uint32_t uca_dummy_init(struct uca_camera_t **cam, struct uca_grabber_t *grabber) +{ + struct uca_camera_t *uca = (struct uca_camera_t *) malloc(sizeof(struct uca_camera_t)); + + uca->destroy = &uca_dummy_destroy; + uca->set_property = &uca_dummy_set_property; + uca->get_property = &uca_dummy_get_property; + uca->start_recording = &uca_dummy_start_recording; + uca->stop_recording = &uca_dummy_stop_recording; + uca->grab = &uca_dummy_grab; + uca->state = UCA_CAM_CONFIGURABLE; + + struct dummy_cam_t *dummy_cam = (struct dummy_cam_t *) malloc(sizeof(struct dummy_cam_t)); + dummy_cam->width = 320; + dummy_cam->height = 240; + dummy_cam->bitdepth = 8; + dummy_cam->framerate = 100; + dummy_cam->buffer = NULL; + uca->user = dummy_cam; + + *cam = uca; + + return UCA_NO_ERROR; +} |