hb_ot_var_has_data ()

hb_bool_t
hb_ot_var_has_data (hb_face_t *face);

This function allows to verify the presence of OpenType variation data on the face. Alternatively, use hb_ot_var_get_axis_count().

Since: 1.4.2

hb_ot_var_find_axis ()

hb_bool_t
hb_ot_var_find_axis (hb_face_t *face,
                     hb_tag_t axis_tag,
                     unsigned int *axis_index,
                     hb_ot_var_axis_t *axis_info);

Since: 1.4.2

hb_ot_var_get_axis_count ()

unsigned int
hb_ot_var_get_axis_count (hb_face_t *face);

Since: 1.4.2

hb_ot_var_get_axes ()

unsigned int
hb_ot_var_get_axes (hb_face_t *face,
                    unsigned int start_offset,
                    unsigned int *axes_count,
                    hb_ot_var_axis_t *axes_array);

Since: 1.4.2

hb_ot_var_normalize_variations ()

void
hb_ot_var_normalize_variations (hb_face_t *face,
                                const hb_variation_t *variations,
                                unsigned int variations_length,
                                int *coords,
                                unsigned int coords_length);

Since: 1.4.2

hb_ot_var_normalize_coords ()

void
hb_ot_var_normalize_coords (hb_face_t *face,
                            unsigned int coords_length,
                            const float *design_coords,
                            int *normalized_coords);

Since: 1.4.2

HB_OT_TAG_VAR_AXIS_ITALIC

#define HB_OT_TAG_VAR_AXIS_ITALIC HB_TAG('i','t','a','l')

HB_OT_TAG_VAR_AXIS_OPTICAL_SIZE

#define HB_OT_TAG_VAR_AXIS_OPTICAL_SIZE HB_TAG('o','p','s','z')

HB_OT_TAG_VAR_AXIS_SLANT

#define HB_OT_TAG_VAR_AXIS_SLANT HB_TAG('s','l','n','t')

HB_OT_TAG_VAR_AXIS_WEIGHT

#define HB_OT_TAG_VAR_AXIS_WEIGHT HB_TAG('w','g','h','t')

HB_OT_TAG_VAR_AXIS_WIDTH

#define HB_OT_TAG_VAR_AXIS_WIDTH HB_TAG('w','d','t','h')

HB_OT_VAR_NO_AXIS_INDEX

#define HB_OT_VAR_NO_AXIS_INDEX		0xFFFFFFFFu

Since: 1.4.2

hb_ot_var_axis_t

typedef struct {
  hb_tag_t tag;
  unsigned int name_id;
  float min_value;
  float default_value;
  float max_value;
} hb_ot_var_axis_t;

Since: 1.4.2