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[fontations] Mark the whole public function unsafe

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This commit is contained in:
Behdad Esfahbod 2025-03-06 12:06:12 -07:00
parent b5d2ec4f83
commit d9b1101de6
1 changed files with 10 additions and 15 deletions
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25
src/fontations/lib.rs
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@ -753,15 +753,14 @@ fn _hb_fontations_font_funcs_get() -> *mut hb_font_funcs_t {
// A helper to attach these funcs to a hb_font_t
#[no_mangle]
pub extern "C" fn hb_fontations_font_set_funcs(font: *mut hb_font_t) {
pub unsafe extern "C" fn hb_fontations_font_set_funcs(font: *mut hb_font_t) {
let ffuncs = _hb_fontations_font_funcs_get();
let face_index = unsafe { hb_face_get_index(hb_font_get_face(font)) };
let face_blob = unsafe { hb_face_reference_blob(hb_font_get_face(font)) };
let blob_length = unsafe { hb_blob_get_length(face_blob) };
let blob_data = unsafe { hb_blob_get_data(face_blob, null_mut()) };
let face_data =
unsafe { std::slice::from_raw_parts(blob_data as *const u8, blob_length as usize) };
let face_index = hb_face_get_index(hb_font_get_face(font));
let face_blob = hb_face_reference_blob(hb_font_get_face(font));
let blob_length = hb_blob_get_length(face_blob);
let blob_data = hb_blob_get_data(face_blob, null_mut());
let face_data = std::slice::from_raw_parts(blob_data as *const u8, blob_length as usize);
let font_ref = FontRef::from_index(face_data, face_index).unwrap();
@ -769,18 +768,16 @@ pub extern "C" fn hb_fontations_font_set_funcs(font: *mut hb_font_t) {
let mut x_scale: i32 = 0;
let mut y_scale: i32 = 0;
unsafe {
hb_font_get_scale(font, &mut x_scale, &mut y_scale);
};
hb_font_get_scale(font, &mut x_scale, &mut y_scale);
let x_size = Size::new(x_scale as f32);
let y_size = Size::new(y_scale as f32);
let mut num_coords: u32 = 0;
let coords = unsafe { hb_font_get_var_coords_normalized(font, &mut num_coords) };
let coords = hb_font_get_var_coords_normalized(font, &mut num_coords);
let coords = if coords.is_null() {
&[]
} else {
unsafe { std::slice::from_raw_parts(coords, num_coords as usize) }
std::slice::from_raw_parts(coords, num_coords as usize)
};
let all_zeros = coords.iter().all(|&x| x == 0);
// if all zeros, use Location::default()
@ -814,7 +811,5 @@ pub extern "C" fn hb_fontations_font_set_funcs(font: *mut hb_font_t) {
});
let data_ptr = Box::into_raw(data) as *mut c_void;
unsafe {
hb_font_set_funcs(font, ffuncs, data_ptr, Some(_hb_fontations_data_destroy));
}
hb_font_set_funcs(font, ffuncs, data_ptr, Some(_hb_fontations_data_destroy));
}