Struct zxing_cpp::ImageView

pub struct ImageView<'a>(/* private fields */);

Implementations

impl<'a> ImageView<'a>

pub unsafe fn from_ptr<T: TryInto<c_int>, U: TryInto<c_int>>( ptr: *const u8, width: T, height: T, format: ImageFormat, row_stride: U, pix_stride: U ) -> Result<Self, Error>

Constructs an ImageView from a raw pointer and the width/height (in pixels) and row_stride/pix_stride (in bytes).

Safety

The memory gets accessed inside the c++ library at random places between ptr and `ptr + height * row_stride + width * pix_stride. Note that both the stride values could be negative, e.g. if the image view is rotated.

pub fn from_slice<T: TryInto<c_int> + Clone>( data: &'a [u8], width: T, height: T, format: ImageFormat ) -> Result<Self, Error>

pub fn cropped(self, left: i32, top: i32, width: i32, height: i32) -> Self

pub fn rotated(self, degree: i32) -> Self

Trait Implementations

impl<'a> AsRef<ImageView<'a>> for ImageView<'a>

fn as_ref(&self) -> &ImageView<'a>

Converts this type into a shared reference of the (usually inferred) input type.

impl Drop for ImageView<'_>

fn drop(&mut self)

Executes the destructor for this type.