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imgdev: perform 5 scans for enrollment

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This feature dramatically improves matching rate on devices with small
sensors.
This commit is contained in:
Vasily Khoruzhick
2013-02-18 12:27:33 +03:00
parent fe3fdd1f50
commit e215b05094
6 changed files with 248 additions and 69 deletions
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24
libfprint/fp_internal.h
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@@ -179,7 +179,9 @@ struct fp_img_dev {
int action_state;
struct fp_print_data *acquire_data;
struct fp_print_data *enroll_data;
struct fp_img *acquire_img;
int enroll_stage;
int action_result;
/* FIXME: better place to put this? */
@@ -325,15 +327,19 @@ enum fp_print_data_type {
PRINT_DATA_NBIS_MINUTIAE,
};
struct fp_print_data {
uint16_t driver_id;
uint32_t devtype;
enum fp_print_data_type type;
struct fp_print_data_item {
size_t length;
unsigned char data[0];
};
struct fpi_print_data_fp1 {
struct fp_print_data {
uint16_t driver_id;
uint32_t devtype;
enum fp_print_data_type type;
GSList *prints;
};
struct fpi_print_data_fp2 {
char prefix[3];
uint16_t driver_id;
uint32_t devtype;
@@ -341,8 +347,14 @@ struct fpi_print_data_fp1 {
unsigned char data[0];
} __attribute__((__packed__));
struct fpi_print_data_item_fp2 {
uint32_t length;
unsigned char data[0];
} __attribute__((__packed__));
void fpi_data_exit(void);
struct fp_print_data *fpi_print_data_new(struct fp_dev *dev, size_t length);
struct fp_print_data *fpi_print_data_new(struct fp_dev *dev);
struct fp_print_data_item *fpi_print_data_item_new(size_t length);
gboolean fpi_print_data_compatible(uint16_t driver_id1, uint32_t devtype1,
enum fp_print_data_type type1, uint16_t driver_id2, uint32_t devtype2,
enum fp_print_data_type type2);