Module exr::meta::attribute

Contains all meta data attributes. Each layer can have any number of [Attribute]s, including custom attributes.

Re-exports

• pub use crate::compression::Compression;

Modules

• block_type_strings
  The string literals used to represent a BlockType in a file.
• type_names
  Contains string literals identifying the type of an attribute.

Structs

• ChannelDescription
  A single channel in an layer. Does not contain the actual pixel data, but instead merely describes it.
• ChannelList
  A List of channels. Channels must be sorted alphabetically.
• Chromaticities
  The color space of the pixels.
• FloatRect
  A rectangular section anywhere in 2D float space.
• IntegerBounds
  A rectangular section anywhere in 2D integer space. Valid from minimum coordinate (including) -1,073,741,822 to maximum coordinate (including) 1,073,741,822, the value of (i32::MAX/2 -1).
• KeyCode
  Uniquely identifies a motion picture film frame.
• Preview
  A small rgba image of i8 values that approximates the real exr image.
• Text
  A byte array with each byte being a char. This is not UTF an must be constructed from a standard string.
• TileDescription
  Describes how the layer is divided into tiles. Specifies the size of each tile in the image and whether this image contains multiple resolution levels.
• TimeCode
  Contains time information for this frame within a sequence. Also defined methods to compile this information into a TV60, TV50 or Film24 bit sequence, packed into u32.

Enums

• AttributeValue
  Contains one of all possible attributes. Includes a variant for custom attributes.
• BlockType
  layer type, specifies block type and deepness.
• EnvironmentMap
  If this attribute is present, it describes how this texture should be projected onto an environment.
• LevelMode
  Whether to also store increasingly smaller versions of the original image.
• LineOrder
  In what order the Blocks of pixel data appear in a file.
• SampleType
  The type of samples in this channel.

Functions

• byte_size
  Number of bytes this attribute would consume in an exr file.
• invalid_type 🔒
• read
  Read the attribute without validating. The result may be Ok even if this single attribute is invalid.
• u8_from_decimal32 🔒
• u8_to_decimal32 🔒
• validate
  Validate this attribute.
• write
  Without validation, write this attribute to the byte stream.

Type Aliases

• DataWindow
  The integer rectangle describing where an layer is placed on the infinite 2D global space.
• DisplayWindow
  The integer rectangle limiting which part of the infinite 2D global space should be displayed.
• Matrix3x3
  A float matrix with three rows and three columns.
• Matrix4x4
  A float matrix with four rows and four columns.
• Rational
  An integer dividend and divisor, together forming a ratio.
• TextBytes
  The raw bytes that make up a string in an exr file. Each u8 is a single char.
• TextSlice
  A byte slice, interpreted as text