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CHANGELOG.md

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Unreleased

  • Improve lifetime flexibility for Font::glyphs_for & Font::layout.
  • Update owned_ttf_parser -> 0.15.
  • Update ab_glyph_rasterizer => 0.1.5.
  • Update crossbeam-queue -> 0.8.
  • Update crossbeam-utils -> 0.8.
  • Update num_cpus => 1.13.
  • Update approx => 0.5.

0.9.2

  • Update ttf-parser -> 0.6.
  • Use more flexible lifetime bounds for Font::layout.

0.9.1

  • Use crate owned_ttf_parser to provide OwnedFont eliminating direct unsafe usage in rusttype.
  • Remove unused legacy trait BoundingBox.
  • Add ScaledGlyph::build_outline & PositionedGlyph::build_outline methods.

0.9.0

  • Major rework to use crates ttf-parser & ab_glyph_rasterizer to respectively read and render OpenType .oft format fonts.
  • Remove dependencies approx, stb_truetype & ordered-float along with in-crate rasterization code.
  • Strip back some non-vital API functionality.
    • Remove support for .standalone() variants which are sparsely used.
    • Remove some functions that didn't immediately translate to ttf-parser. Please raise issues to re-add any you relied on via the new stack.

0.8.3

  • Remove arrayvec dependency.
  • Add Default implementations for geometry structs.

0.8.2

  • Update crossbeam-utils -> 0.7.
  • Update libm -> 0.2.1.

0.8.1

  • Update arrayvec -> 0.5.

0.8

  • Support no-std usage by disabling the new default feature std and using new features libm-math and has-atomics. The gpu_cache module/feature requires std.

0.7.9

  • Use semver trick to re-expect rusttype 0.8 with default-features on.

0.7.8

yanked

0.7.7

  • gpu_cache: Add CacheBuilder::align_4x4 method which forces texture updates to align to 4x4 pixel boxes.
  • gpu_cache: Disable multithread code and remove dependencies on wasm32.

0.7.6

  • GlyphIter and LayoutIter provide the lifetime of the font data.

0.7.5

  • gpu_cache: Cache::cache_queued now returns CachedBy for successes which can allow callers to tell that the texture cache has been re-ordered.

0.7.4

  • Add fn PositionedGlyph::set_position
  • gpu_cache: Update crossbeam-deque -> 0.7, use Injector for minor rasterization performance boost.

0.7.3

  • gpu_cache: Update crossbeam-utils -> 0.6.

0.7.2

  • Update ordered-float -> 1.

0.7.1

  • Fix PositionedGlyph::pixel_bounding_box() size inconsistencies at different positions with identical sub-pixel positions.

0.7

  • Rework CacheBuilder to use methods to allow non-breaking additions in future. New style is Cache::builder().dimensions(512, 512).build().
  • Support multithreaded rasterization in the gpu_cache. This yields significant improvements in worst case performance when more than 1 CPU core is available. Thrashing, resizing & population benchmarks are ~3x faster on a 4-core Haswell. Multithreading is enabled by default in environments with more than a single core, but can be explicitly disabled using Cache::builder().multithread(false).
  • Remove all deprecated API.
  • Add Debug implementations for Font, Glyph, ScaledGlyph & PositionedGlyph
  • Add and improve documentation + examples.

0.6.5

  • Re-export rusttype 0.7 non-breaking main API, while keeping the current version of the gpu_cache module.

0.6.4

  • Add CacheBuilder::rebuild & Cache::to_builder methods.
  • gpu_cache: Only rasterize & upload after queue has successfully fit in cache producing a 1.16-1.29x speedup in resizing & thrashing benchmarks.

0.6.3

  • Documentation clarifications
  • Avoid depending on unused dependency default-features

0.6.2

  • Add From<&AsRef<[u8]>> for SharedBytes.
  • Optimise gpu_cache hashing to improve benchmark performance by ~30%.

0.6.1

  • Optimise rasterizer removing internal hashing. Improves draw benchmark performance by 11-91%.

0.6

  • Rework gpu_cache data structures allowing constant time hash lookup of matching cached glyph textures. Improve performance by ~60-200%.
  • Deprecate gpu_cache::Cache::new in favour of gpu_cache::CacheBuilder.
  • Deprecate gpu_cache::Cache::set_scale_tolerance & gpu_cache::Cache::set_position_tolerance. These are now equivalent to recreating the cache as they invalidate the cache keys.
  • gpu_cache scale_tolerance & position_tolerance now have subtly different meanings but guarantee their error in all cases, where previously the worst case was double the set tolerance.

0.5.2

  • Add gpu cache glyph padding option to fix texture bleeding from other glyphs when using interpolated texture coordinates near edges. Use CacheBuilder to construct a Cache that makes use of padding.
  • Inlining performance improvements.

0.5.1

  • Fix tree removal on row clear (gpu_cache).

0.5

  • Let functions like Font::glyph and Font::pair_kerning work with both characters and glyph ids by having them accept any type that implements the new IntoGlyphId trait. This replaces the CodepointOrGlyph enum, which didn't seem widely used.
  • Make Font::glyph always return a Glyph, not Option<Glyph>. Passing a char the font doesn't cover returns a .notdef glyph (id 0), as it did before. Passing an invalid glyph id now panics, like a bad array index: glyph ids should only be used to index the font they were looked up for.
  • Introduce rusttype::Error, which implements std::error::Error, Debug and Display, and can be converted to std::io::Error.
  • Use Result<_, rusttype::Error> to report failures in FontCollection, Font and associated iterators.
  • Add Font::from_bytes method similar to FontCollection::from_bytes for 1 font collections.
  • Improve gpu_cache performance ~2-6%

0.4.3

  • Improve gpu_cache performance ~6-17%

0.4.2

  • Allow users to get font names from Font. (#86)

0.4

  • Add more debugging features
  • Add support for unscaled fonts
  • Improve performance
  • Make gpu_cache optional

0.3

  • Transfer to redox-os organization, merge a number of pull requests

0.2.1

  • Made the API more convenient (courtesy of @mitchmindtree, @I1048576).
  • Fixes for the examples (@I1048576)
  • Removed the dependency on ndarray (@I1048576)

0.2

  • Initial GPU caching implementation.
  • Made font data management more flexible.
  • Made the interface for font scales simpler.

0.1.2

Fixed issue #8

0.1.1

Fixed issue #7

0.1

Initial release