static void ewin_cb_export_clicked(GtkWidget *widget, gpointer data)
{
struct fp_img *scan = NULL;
int finger = GPOINTER_TO_INT(data);
int r;
char path[2048];
sprintf(path,"captured_%d.pgm",finger);
if (!fp_dev_supports_imaging(fpdev)) {
fprintf(stderr, "this device does not have imaging capabilities.\n");
return;
}
r = fp_dev_img_capture(fpdev,0,&scan);
if (r != 0) {
fprintf(stderr,"Image Capture Failed: %d\n",r);
fp_img_free(scan);
return;
}
fp_img_standardize(scan);
r = fp_img_save_to_file(scan,path);
fp_img_free(scan);
if (r != 0) {
fprintf(stderr,"Image Save Failed: %d\n",r);
}
return;
}
void fpi_imgdev_image_captured(struct fp_img_dev *imgdev, struct fp_img *img)
{
struct fp_print_data *print;
int r;
fp_dbg("");
if (imgdev->action_state != IMG_ACQUIRE_STATE_AWAIT_IMAGE) {
fp_dbg("ignoring due to current state %d", imgdev->action_state);
return;
}
if (imgdev->action_result) {
fp_dbg("not overwriting existing action result");
return;
}
r = sanitize_image(imgdev, &img);
if (r < 0) {
imgdev->action_result = r;
fp_img_free(img);
goto next_state;
}
fp_img_standardize(img);
imgdev->acquire_img = img;
r = fpi_img_to_print_data(imgdev, img, &print);
if (r < 0) {
fp_dbg("image to print data conversion error: %d", r);
imgdev->action_result = FP_ENROLL_RETRY;
goto next_state;
} else if (img->minutiae->num < MIN_ACCEPTABLE_MINUTIAE) {
fp_dbg("not enough minutiae, %d/%d", img->minutiae->num,
MIN_ACCEPTABLE_MINUTIAE);
fp_print_data_free(print);
/* depends on FP_ENROLL_RETRY == FP_VERIFY_RETRY */
imgdev->action_result = FP_ENROLL_RETRY;
goto next_state;
}
imgdev->acquire_data = print;
switch (imgdev->action) {
case IMG_ACTION_ENROLL:
imgdev->action_result = FP_ENROLL_COMPLETE;
break;
case IMG_ACTION_VERIFY:
verify_process_img(imgdev);
break;
case IMG_ACTION_IDENTIFY:
identify_process_img(imgdev);
break;
default:
BUG();
break;
}
next_state:
imgdev->action_state = IMG_ACQUIRE_STATE_AWAIT_FINGER_OFF;
dev_change_state(imgdev, IMGDEV_STATE_AWAIT_FINGER_OFF);
}
/**Capture an image, standardize and binarize it, and write it to a file*/
void image_save_binarized(char* filename){
struct fp_img* img = image_get();
fp_img_standardize(img);
struct fp_img* img_binarized = fp_img_binarize(img);
image_writefile(img_binarized, filename);
fp_img_free(img); //free it
fp_img_free(img_binarized);
}
void fpi_imgdev_image_captured(struct fp_img_dev *imgdev, struct fp_img *img)
{
struct fp_print_data *print;
int r;
fp_dbg("");
if (imgdev->action_state != IMG_ACQUIRE_STATE_AWAIT_IMAGE) {
fp_dbg("ignoring due to current state %d", imgdev->action_state);
return;
}
if (imgdev->action_result) {
fp_dbg("not overwriting existing action result");
return;
}
r = sanitize_image(imgdev, &img);
if (r < 0) {
imgdev->action_result = r;
fp_img_free(img);
goto next_state;
}
fp_img_standardize(img);
imgdev->acquire_img = img;
if (imgdev->action != IMG_ACTION_CAPTURE) {
r = fpi_img_to_print_data(imgdev, img, &print);
if (r < 0) {
fp_dbg("image to print data conversion error: %d", r);
imgdev->action_result = FP_ENROLL_RETRY;
goto next_state;
} else if (img->minutiae->num < MIN_ACCEPTABLE_MINUTIAE) {
fp_dbg("not enough minutiae, %d/%d", img->minutiae->num,
MIN_ACCEPTABLE_MINUTIAE);
fp_print_data_free(print);
/* depends on FP_ENROLL_RETRY == FP_VERIFY_RETRY */
imgdev->action_result = FP_ENROLL_RETRY;
goto next_state;
}
}
imgdev->acquire_data = print;
switch (imgdev->action) {
case IMG_ACTION_ENROLL:
if (!imgdev->enroll_data) {
imgdev->enroll_data = fpi_print_data_new(imgdev->dev);
}
BUG_ON(g_slist_length(print->prints) != 1);
/* Move print data from acquire data into enroll_data */
imgdev->enroll_data->prints =
g_slist_prepend(imgdev->enroll_data->prints, print->prints->data);
print->prints = g_slist_remove(print->prints, print->prints->data);
fp_print_data_free(imgdev->acquire_data);
imgdev->acquire_data = NULL;
imgdev->enroll_stage++;
if (imgdev->enroll_stage == imgdev->dev->nr_enroll_stages)
imgdev->action_result = FP_ENROLL_COMPLETE;
else
imgdev->action_result = FP_ENROLL_PASS;
break;
case IMG_ACTION_VERIFY:
verify_process_img(imgdev);
break;
case IMG_ACTION_IDENTIFY:
identify_process_img(imgdev);
break;
case IMG_ACTION_CAPTURE:
imgdev->action_result = FP_CAPTURE_COMPLETE;
break;
default:
BUG();
break;
}
next_state:
imgdev->action_state = IMG_ACQUIRE_STATE_AWAIT_FINGER_OFF;
dev_change_state(imgdev, IMGDEV_STATE_AWAIT_FINGER_OFF);
}
/**Capture an image, standardize it, and write it to a file*/
void image_save(char* filename){
struct fp_img* img = image_get();
fp_img_standardize(img);
image_writefile(img, filename);
fp_img_free(img); //free it
}
