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Diffstat (limited to 'vendor/qoi/src/error.rs')
-rw-r--r-- | vendor/qoi/src/error.rs | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/vendor/qoi/src/error.rs b/vendor/qoi/src/error.rs deleted file mode 100644 index 2b90636..0000000 --- a/vendor/qoi/src/error.rs +++ /dev/null @@ -1,82 +0,0 @@ -use core::convert::Infallible; -use core::fmt::{self, Display}; - -use crate::consts::QOI_MAGIC; - -/// Errors that can occur during encoding or decoding. -#[derive(Debug)] -pub enum Error { - /// Leading 4 magic bytes don't match when decoding - InvalidMagic { magic: u32 }, - /// Invalid number of channels: expected 3 or 4 - InvalidChannels { channels: u8 }, - /// Invalid color space: expected 0 or 1 - InvalidColorSpace { colorspace: u8 }, - /// Invalid image dimensions: can't be empty or larger than 400Mp - InvalidImageDimensions { width: u32, height: u32 }, - /// Image dimensions are inconsistent with image buffer length - InvalidImageLength { size: usize, width: u32, height: u32 }, - /// Output buffer is too small to fit encoded/decoded image - OutputBufferTooSmall { size: usize, required: usize }, - /// Input buffer ended unexpectedly before decoding was finished - UnexpectedBufferEnd, - /// Invalid stream end marker encountered when decoding - InvalidPadding, - #[cfg(feature = "std")] - /// Generic I/O error from the wrapped reader/writer - IoError(std::io::Error), -} - -/// Alias for [`Result`](std::result::Result) with the error type of [`Error`]. -pub type Result<T> = core::result::Result<T, Error>; - -impl Display for Error { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { - match *self { - Self::InvalidMagic { magic } => { - write!(f, "invalid magic: expected {:?}, got {:?}", QOI_MAGIC, magic.to_be_bytes()) - } - Self::InvalidChannels { channels } => { - write!(f, "invalid number of channels: {}", channels) - } - Self::InvalidColorSpace { colorspace } => { - write!(f, "invalid color space: {} (expected 0 or 1)", colorspace) - } - Self::InvalidImageDimensions { width, height } => { - write!(f, "invalid image dimensions: {}x{}", width, height) - } - Self::InvalidImageLength { size, width, height } => { - write!(f, "invalid image length: {} bytes for {}x{}", size, width, height) - } - Self::OutputBufferTooSmall { size, required } => { - write!(f, "output buffer size too small: {} (required: {})", size, required) - } - Self::UnexpectedBufferEnd => { - write!(f, "unexpected input buffer end while decoding") - } - Self::InvalidPadding => { - write!(f, "invalid padding (stream end marker mismatch)") - } - #[cfg(feature = "std")] - Self::IoError(ref err) => { - write!(f, "i/o error: {}", err) - } - } - } -} - -#[cfg(feature = "std")] -impl std::error::Error for Error {} - -impl From<Infallible> for Error { - fn from(_: Infallible) -> Self { - unreachable!() - } -} - -#[cfg(feature = "std")] -impl From<std::io::Error> for Error { - fn from(err: std::io::Error) -> Self { - Self::IoError(err) - } -} |