Struct mozjpeg_sys::jpeg_common_struct

source · [−]

#[repr(C)]pub struct jpeg_common_struct {
    pub err: *mut jpeg_error_mgr,
    pub mem: *mut jpeg_memory_mgr,
    pub progress: *mut jpeg_progress_mgr,
    pub client_data: *mut c_void,
    pub is_decompressor: boolean,
    pub global_state: c_int,
}

Expand description

Routines that are to be used by both halves of the library are declared to receive a pointer to this structure. There are no actual instances of jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct.

Fields

err: *mut jpeg_error_mgrmem: *mut jpeg_memory_mgrprogress: *mut jpeg_progress_mgr

Progress monitor, or NULL if none

client_data: *mut c_void

Available for use by application

is_decompressor: boolean

So common code can tell which is which

global_state: c_int

For checking call sequence validity

Auto Trait Implementations

impl RefUnwindSafe for jpeg_common_struct

impl !Send for jpeg_common_struct

impl !Sync for jpeg_common_struct

impl Unpin for jpeg_common_struct

impl UnwindSafe for jpeg_common_struct

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

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const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.