Enum `AttributeValue`

pub enum AttributeValue

Contains one of all possible attributes. Includes a variant for custom attributes.

Variants

ChannelList(ChannelList): Channel meta data.
Chromaticities(Chromaticities): Color space definition.
Compression(Compression): Compression method of this layer.
EnvironmentMap(EnvironmentMap): This image is an environment map.
KeyCode(KeyCode): Film roll information.
LineOrder(LineOrder): Order of the bocks in the file.
Matrix3x3(Matrix3x3): A 3x3 matrix of floats.
Matrix4x4(Matrix4x4): A 4x4 matrix of floats.
Preview(Preview): 8-bit rgba Preview of the image.
Rational(Rational): An integer dividend and divisor.
BlockType(BlockType): Deep or flat and tiled or scan line.
TextVector(Vec<Text>): List of texts.
TileDescription(TileDescription): How to tile up the image.
TimeCode(TimeCode): Timepoint and more.
Text(Text): A string of byte-chars.
F64(f64): 64-bit float
F32(f32): 32-bit float
I32(i32): 32-bit signed integer
IntegerBounds(IntegerBounds): 2D integer rectangle.
FloatRect(FloatRect): 2D float rectangle.
IntVec2(Vec2<i32>): 2D integer vector.
FloatVec2(Vec2<f32>): 2D float vector.
IntVec3((i32, i32, i32)): 3D integer vector.
FloatVec3((f32, f32, f32)): 3D float vector.
Bytes { type_hint: Text, bytes: SmallVec<[u8; 16]> }: An explicitly untyped attribute for binary application data. Also contains the type name of this value. The format of the byte contents is explicitly unspecified. Used for custom application data.
Custom { kind: Text, bytes: SmallVec<[u8; 16]> }: A custom attribute. Contains the type name of this value.

Implementations

`impl AttributeValue`

fn byte_size(&self) -> usize: Number of bytes this would consume in an exr file.
fn kind_name(&self) -> &TextSlice: The exr name string of the type that an attribute can have.
fn write<W: Write>(&self, write: &mut W) -> UnitResult: Without validation, write this instance to the byte stream.
fn read(read: &mut PeekRead<impl Read>, kind: Text, byte_size: usize) -> Result<Result<Self>>: Read the value without validating. Returns Ok(Ok(attribute)) for valid attributes. Returns Ok(Err(Error)) for malformed attributes from a valid byte source. Returns Err(Error) for invalid byte sources, for example for invalid files.
fn validate(&self, allow_sampling: bool, data_window: IntegerBounds, strict: bool) -> UnitResult: Validate this instance.
fn to_i32(&self) -> Result<i32>: Return Ok(i32) if this attribute is an i32.
fn to_f32(&self) -> Result<f32>: Return Ok(f32) if this attribute is an f32.
fn into_text(self) -> Result<Text>: Return Ok(Text) if this attribute is a text.
fn to_text(&self) -> Result<&Text>: Return Ok(Text) if this attribute is a text.
fn to_chromaticities(&self) -> Result<Chromaticities>: Return Ok(Chromaticities) if this attribute is a chromaticities attribute.
fn to_time_code(&self) -> Result<TimeCode>: Return Ok(TimeCode) if this attribute is a time code.