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CHANGELOG.md

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Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

This changelog also contains important changes in dependencies.

Unreleased

Added

  • Load grayscale raster images.
  • enable-background support.
  • BackgroundImage and BackgroundAlpha support as a filter input.
  • resvg/usvg can be built without text rendering support now.

Changed

  • Allow feComposite k1-4 coefficients to be larger than 1.0 This matches browsers behaviour.
  • Use flate2 instead of libflate for GZip decoding.

Fixed

  • feComposite with fully transparent regions was producing invalid results.
  • Fallback to matrix in feColorMatrix when type is not set or invalid.

0.8.0 - 2019-08-17

Added

  • A Skia backend thanks to JaFenix.
  • feComponentTransfer support.
  • feColorMatrix support.
  • A better CSS support.
  • An *.otf fonts support.
  • (usvg) dx, dy are supported inside textPath now.
  • Use a box blur for feGaussianBlur with stdDeviation>=2. This is 4-8 times faster than IIR blur. Thanks to Shnatsel.

Changed

  • All backends are using Rust crates for raster images loading now.
  • Use pico-args instead of gumdrop to reduced the build time of tools/rendersvg and tools/usvg.
  • (usvg) The xmlwriter is used for SVG generation now. Almost 2x faster than generating an svgdom.
  • (usvg) Optimize font database initialization. Almost 50% faster.
  • Use a lower PNG compression ratio to speed up PNG generation. Depending on a backend and image can be 2-4x faster.
  • OutputImage::save -> OutputImage::save_png.
  • (usvg) Path::segments -> Path::data.
  • Cairo backend compilation is 2x faster now due to overall changes.
  • Performance improvements (Oxygen Icon theme SVG-to-PNG):
    • cairo-backend: 22% faster
    • qt-backend: 20% faster
    • raqote-backend: 34% faster

Fixed

  • (qt-api) A default font resolving.
  • (usvg) baseline-shift processing inside textPath.
  • (usvg) Remove all tref element children.
  • (usvg) tref with xml:space resolving.
  • (usvg) Ignore nested tref.
  • (usvg) Ignore invalid clipPath children that were referenced via use.
  • (usvg) currentColor will always fallback to black now. Previously, stroke was set to none which is incorrect.
  • (usvg) use can reference an element inside a non-SVG element now.
  • (usvg) Collect all styles for generic fonts and not only Regular.
  • (usvg) Parse only presentation attributes from the style element and attribute.

Removed

  • (cairo-backend) gdk-pixbuf dependency.
  • (qt-backend) JPEG image format plugin dependency.
  • svgdom dependency.

0.7.0 - 2019-06-19

Added

  • New text layout implementation:
    • textPath support.
    • writing-mode support, aka vertical text.
    • Text BIDI reordering.
    • Better text shaping.
    • word-spacing is supported for all backends now.
    • harfbuzz dependency.
    • Subscript, superscript offsets are extracted from font and not hardcoded now.
  • shape-rendering, text-rendering and image-rendering support.
  • The arithmetic operator for feComposite.
  • (usvg) --quiet argument.
  • (c-api) resvg_get_image_bbox.
  • (qt-api) ResvgRenderer::boundingBox.
  • (resvg) A raqote backend thanks to jrmuizel. Still experimental.

Changed

  • Text will be converted into paths on the usvg side now.
  • (resvg) Do not rescale images before rendering. This is faster and better.
  • (usvg) An image element with a zero or negative size will be skipped now. Previously, a linked image size was used, which is incorrect.
  • Geometry primitives (Rect, Size, etc) are immutable and always valid now.
  • (usvg) The default color-interpolation-filters attribute will not be exported now.

Removed

  • (usvg) All text related structures and enums. Text will be converted into Path now.
  • InitObject and init() because they are no longer needed.
  • (c-api) resvg_handle, resvg_init, resvg_destroy.
  • (c-api) resvg_cairo_get_node_bbox and resvg_qt_get_node_bbox. Use backend-independent resvg_get_node_bbox instead.
  • (cairo-backend) pango dependency.
  • (resvg) Backend::calc_node_bbox. Use Node::calculate_bbox() instead.

Fixed

  • letter-spacing on cursive scripts (like Arabic).
  • (rctree) Prevent stack overflow on a huge, deeply nested SVG.
  • (c-api) resvg_is_image_empty was always returning false.
  • (resvg) Panic when filter with objectBoudningBox was set on an empty group.
  • (usvg) mask with objectBoundingBox resolving.
  • (usvg) pattern's viewBox attribute resolving via href.
  • (roxmltree) Namespace resolving.

0.6.1 - 2019-03-16

Fixed

  • (usvg) transform multiplication.
  • (usvg) use inside clipPath resolving.

0.6.0 - 2019-03-16

Added

  • Nested baseline-shift support.
  • (qt-api) renderToImage.
  • (usvg) A better algorithm for unused defs (defs element children, like gradients) removal.
  • (usvg) Error::InvalidSize.
  • (c-api) RESVG_ERROR_INVALID_SIZE.

Changed

  • (usvg) A major rewrite.
  • baseline-shift with sub, super and percent values calculation.
  • Marker resolving moved completely to usvg.
  • If an SVG doesn't have a valid size than an error will occur. Previously, an empty tree was produced.
  • (qt-api) render methods are const now.
  • (usvg) Disable default attributes exporting.

Removed

  • (usvg) Marker element and attributes. Markers will be resolved just like use now.

Fixed

  • (resvg) During the tspan rendering, the text bbox will be used instead of the tspan bbox itself. This is the correct behaviour by the SVG spec.
  • (cairo-backend) font-family parsing.
  • (usvg) filter:none processing.
  • (usvg) text inside text processing.
  • (usvg) Endless loop during use resolving.
  • (usvg) Endless loop when SVG has indirect recursive xlink:href links.
  • (usvg) Endless loop when SVG has recursive marker-* links.
  • (usvg) Panic during use resolving.
  • (usvg) Panic during inherited attributes resolving.
  • (usvg) Groups regrouping.
  • (usvg) dx/dy processing on text.
  • (usvg) textAnchor resolving.
  • (usvg) Ignore fill-rule on text.
  • (svgtypes) Style with comments parsing.
  • (roxmltree) Namespaces resolving.

0.5.0 - 2019-01-04

Added

  • marker support.
  • Partial baseline-shift support.
  • letter-spacing support.
  • (qt-backend) word-spacing support. Does not work on the cairo backend.
  • tools/explorer-thumbnailer
  • tools/kde-dolphin-thumbnailer

Fixed

  • Object bounding box calculation.
  • Pattern scaling.
  • Nested objectBoundigBox support.
  • (usvg) color on use resolving.
  • (usvg) offset attribute resolving inside the stop element.
  • (usvg) Ungrouping of groups with non-inheritable attributes.
  • (usvg) rotate attribute resolving.
  • (usvg) Paths without stroke and fill will no longer be removed. Required for a proper bbox resolving.
  • (usvg) Coordinates resolving when units are userSpaceOnUse.
  • (usvg) Groups regrouping. Caused an incorrect rendering of clipPath that had filter on a child.
  • (usvg) Style attributes resolving on the root svg element.
  • (usvg) SmoothCurveTo and SmoothQuadratic conversion.
  • (usvg) symbol resolving.
  • (cairo-backend) Font ascent calculation.
  • (qt-backend) Stroking of LineTo specified as CurveTo.
  • (svgdom) stroke-miterlimit attribute parsing.
  • (svgdom) length and number attribute types parsing.
  • (svgdom) offset attribute parsing.
  • (svgdom) IRI resolving order when SVG has duplicated ID's.

0.4.0 - 2018-12-13

Added

  • (resvg) Initial filters support.
  • (resvg) Nested clipPath and mask support.
  • (resvg) MSVC support.
  • (rendersvg) font-family, font-size and languages to args.
  • (usvg) systemLanguage attribute support.
  • (usvg) Default font family and size is configurable now.
  • (c-api) RESVG_ERROR_PARSING_FAILED.
  • (c-api) font_family, font_size and languages to resvg_options.
  • (qt-api) ResvgRenderer::setDevicePixelRatio.

Changed

  • (rendersvg) Use gumdrop instead of getopts.
  • (c-api) Qt wrapper is header-only now.

Fixed

  • (cairo-backend) Text layout.
  • (cairo-backend) Rendering of a zero length subpath with a square cap.
  • (qt-backend) Transform retrieving via Qt bindings.
  • (resvg) Recursive SVG images via image tag.
  • (resvg) Bbox calculation of the text with rotate.
  • (resvg) Invisible elements processing.
  • (qt-api) SVG from QByteArray loading when data is invalid.
  • (usvg) display attribute processing.
  • (usvg) Recursive mask resolving.
  • (usvg) inherit attribute value resolving.
  • (svgdom) XML namespaces resolving.

Removed

  • (rendersvg) failure dependency.

0.3.0 - 2018-05-23

Added

  • (c-api) resvg_is_image_empty.
  • (c-api) resvg_error enum.
  • (c-api) Qt wrapper.
  • (resvg) Advanced text layout support (lists of x, y, dx, dy and rotate).
  • (resvg) SVG support for image element.
  • (usvg) symbol element support.
  • (usvg) Nested svg elements support.
  • (usvg) Paint fallback resolving.
  • (usvg) Bbox validation for shapes that use painting servers.
  • (svgdom) Elements from ENTITY resolving.

Changed

  • (c-api) resvg_parse_tree_from_file, resvg_parse_tree_from_data resvg_cairo_render_to_image and resvg_qt_render_to_image will return an error code now.
  • (cairo-backend) Use gdk-pixbuf crate instead of image.
  • (resvg) Render::render_to_image and Render::render_node_to_image will return Option and not Result now.
  • (resvg) New geometry primitives implementation.
  • (resvg) Rename render_* modules to backend_.
  • (rendersvg) Use getopts instead of clap to reduce the executable size.
  • (svgtypes) StreamExt::parse_iri and StreamExt::parse_func_iri will parse not only well-formed data now.

Fixed

  • (qt-backend) Gradient with objectBoundingBox rendering.
  • (qt-backend) Text bounding box detection during the rendering.
  • (cairo-backend) image element clipping.
  • (cairo-backend) Layers management.
  • (c-api) resvg_get_node_transform will return a correct transform now.
  • (resvg) text-decoration thickness.
  • (resvg) pattern scaling.
  • (resvg) image without size rendering.
  • (usvg) Panic during visibility resolving.
  • (usvg) Gradients with one stop resolving.
  • (usvg) use attributes resolving.
  • (usvg) clipPath and mask attributes resolving.
  • (usvg) offset attribute in stop element resolving.
  • (usvg) Incorrect font-size attribute resolving.
  • (usvg) Gradient stops resolving.
  • (usvg) switch element resolving.
  • (svgdom) Mixed xml:space processing.
  • (svgtypes) Paint::from_span poor performance.

Removed

  • (c-api) resvg_error_msg_destroy.
  • (resvg) parse_rtree_* methods. Use usvg::Tree::from_ instead.
  • (resvg) Error.

0.2.0 - 2018-04-24

Added

  • (svg) Partial clipPath support.
  • (svg) Partial mask support.
  • (svg) Partial pattern support.
  • (svg) preserveAspectRatio support.
  • (svg) Check that an external image is PNG or JPEG.
  • (rendersvg) Added --query-all and --export-id arguments to render SVG items by ID.
  • (rendersvg) Added --perf argument for a simple performance stats.

Changed

  • (resvg) API is completely new.

Fixed

  • font-size attribute inheritance during use resolving.