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Initial implementation for image device access and capture

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Also added new example: img_capture
This commit is contained in:
Daniel Drake
2007-10-27 00:06:53 +01:00
parent 0aac3706d7
commit f3a838e856
9 changed files with 369 additions and 8 deletions
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33
libfprint/fp_internal.h
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@@ -41,6 +41,10 @@
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*a))
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
enum fpi_log_level {
LOG_LEVEL_DEBUG,
LOG_LEVEL_INFO,
@@ -82,6 +86,12 @@ struct fp_dev {
int __enroll_stage;
};
struct fp_img_dev {
struct fp_dev *dev;
usb_dev_handle *udev;
void *priv;
};
struct usb_id {
uint16_t vendor;
uint16_t product;
@@ -109,10 +119,20 @@ struct fp_driver {
int (*verify)(struct fp_dev *dev, struct fp_print_data *data);
};
/* flags for fp_img_driver.flags */
#define FP_IMGDRV_SUPPORTS_UNCONDITIONAL_CAPTURE (1 << 0)
struct fp_img_driver {
struct fp_driver driver;
uint16_t flags;
/* Device operations */
int (*init)(struct fp_img_dev *dev, unsigned long driver_data);
void (*exit)(struct fp_img_dev *dev);
int (*await_finger_on)(struct fp_img_dev *dev);
int (*await_finger_off)(struct fp_img_dev *dev);
int (*capture)(struct fp_img_dev *dev, gboolean unconditional,
struct fp_img **image);
};
extern struct fp_driver upekts_driver;
@@ -133,9 +153,20 @@ struct fp_print_data {
};
struct fp_print_data *fpi_print_data_new(struct fp_dev *dev, size_t length);
unsigned char *fpi_print_data_get_buffer(struct fp_print_data *data);
int fpi_print_data_compatible(struct fp_dev *dev, struct fp_print_data *data);
struct fp_img {
int width;
int height;
size_t length;
unsigned char data[0];
};
struct fp_img *fpi_img_new(size_t length);
struct fp_img *fpi_img_new_dims(int width, int height);
struct fp_img *fpi_img_resize(struct fp_img *img, size_t newsize);
gboolean fpi_img_is_sane(struct fp_img *img);
#define bswap16(x) (((x & 0xff) << 8) | (x >> 8))
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define cpu_to_le16(x) (x)