ktx2

• Added missing VkFormat variants to Format (#39).

• Added shorthand Reader accessors: color_primaries(), transfer_function(), color_model(), is_alpha_premultiplied(), writer(), and basic_dfd() (#43).

• Added DFD generation: dfd::Basic::from_format() and dfd::Basic::from_format_with() for constructing basic DFD blocks from a Format.

• Moved all Data Format Descriptor (DFD) types into new submodule called dfd and renamed them to be more understandable.

  • DfdBlock -> dfd::Block
  • DfdHeader -> dfd::BlockHeader
  • DfdBlockBasic -> dfd::Basic
  • DfdBlockHeaderBasic -> dfd::BasicHeader

  The following types moved into the dfd module unchanged.

  • ChannelTypeQualifiers
  • ColorModel
  • ColorPrimaries
  • DataFormatFlags
  • SampleInformation
  • TransferFunction

• Added dfd::Block serialization: serialized_length(), to_bytes(), to_vec(), parse()

• dfd::Block is now an owned enum (Basic(Basic) | Unknown { header, data }) instead of a borrowed struct

• dfd::BasicHeader merged into dfd::Basic, which now owns its sample_information: Vec<SampleInformation> instead of providing a lazy iterator. dfd::BasicHeader::LENGTH is now dfd::Basic::FIXED_LENGTH

• Reader::dfd_blocks() returns &[dfd::Block] instead of impl Iterator<Item = dfd::Block<'_>>

Released 2026-04-19

• Added missing VkFormat variants to Format (#39).
• Added shorthand Reader accessors: color_primaries(), transfer_function(), color_model(), is_alpha_premultiplied(), writer(), and basic_dfd() (#43).
• Added DFD generation: dfd::Basic::from_format() and dfd::Basic::from_format_with() for constructing basic DFD blocks from a Format.
• Moved all Data Format Descriptor (DFD) types into new submodule called dfd and renamed them to be more understandable.
  • DfdBlock -> dfd::Block
  • DfdHeader -> dfd::BlockHeader
  • DfdBlockBasic -> dfd::Basic
  • DfdBlockHeaderBasic -> dfd::BasicHeader The following types moved into the dfd module unchanged.
  • ChannelTypeQualifiers
  • ColorModel
  • ColorPrimaries
  • DataFormatFlags
  • SampleInformation
  • TransferFunction
• Added dfd::Block serialization: serialized_length(), to_bytes(), to_vec(), parse()
• dfd::Block is now an owned enum (Basic(Basic) | Unknown { header, data }) instead of a borrowed struct
• dfd::BasicHeader merged into dfd::Basic, which now owns its sample_information: Vec<SampleInformation> instead of providing a lazy iterator. dfd::BasicHeader::LENGTH is now dfd::Basic::FIXED_LENGTH
• Reader::dfd_blocks() returns &[dfd::Block] instead of impl Iterator<Item = dfd::Block<'_>>

Released 2025-03-24

• Added a key_value_data function to the reader that returns an iterator over key-value pairs (by @expenses).
• Reader::levels now returns an iterator over Level structs, which contain the bytes of the level as well as the uncompressed length (by @expenses).
• Added Header::from_bytes, Header::as_bytes, LevelIndex::from_bytes and LevelIndex::as_bytes (by @expenses).
• Made the following fields public (by @expenses):
  • Header::LENGTH
  • Header::index
  • LevelIndex::LENGTH
  • LevelIndex::byte_offset
  • LevelIndex::byte_length
  • LevelIndex::uncompressed_byte_length
  • Level::data
  • Level::uncompressed_byte_length
• Moved header data in BasicDataFormatDescriptor into BasicDataFormatDescriptorHeader.
• Add ASTC_n_SFLOAT_BLOCK variants to Format.
• Rename Data Format Descriptor types to all start with Dfd (by @cwfitzgerald):
  • Reader::data_format_descriptors -> Reader::dfd_blocks
  • DataFormatDescriptor -> DfdBlock
  • DataFormatDescriptorHeader -> DfdBlockHeader
  • BasicDataFormatDescriptor -> DfdBlockBasic
  • BasicDataFormatDescriptorHeader -> DfdBlockHeaderBasic

Released 2025-03-24

• Added a key_value_data function to the reader that returns an iterator over key-value pairs (by @expenses).
• Reader::levels now returns an iterator over Level structs, which contain the bytes of the level as well as the uncompressed length (by @expenses).
• Added Header::from_bytes, Header::as_bytes, LevelIndex::from_bytes and LevelIndex::as_bytes (by @expenses).
• Made the following fields public (by @expenses):
  • Header::LENGTH
  • Header::index
  • LevelIndex::LENGTH
  • LevelIndex::byte_offset
  • LevelIndex::byte_length
  • LevelIndex::uncompressed_byte_length
  • Level::data
  • Level::uncompressed_byte_length
• Moved header data in BasicDataFormatDescriptor into BasicDataFormatDescriptorHeader.
• Add ASTC_n_SFLOAT_BLOCK variants to Format.
• Rename Data Format Descriptor types to all start with Dfd (by @cwfitzgerald):
  • Reader::data_format_descriptors -> Reader::dfd_blocks
  • DataFormatDescriptor -> DfdBlock
  • DataFormatDescriptorHeader -> DfdBlockHeader
  • BasicDataFormatDescriptor -> DfdBlockBasic
  • BasicDataFormatDescriptorHeader -> DfdBlockHeaderBasic

Bump version for release

Released 2022-02-03

Initial release under new ownership.

• Added support for Data Format Descriptor parsing (Rob Swain @superdump)

Changed

• Cleaned up a signifigant portion of the crate.