Improving text render compatibility by fixing wrong Text Range.
When lottie doesn't have `end` prop in the range, system must ignore condition regarding to `end`.
The original logic unintentionally swaps `start` and `end` prop, because `end` is the zero in this case. Then the text range animation behaves the opposite.
on each parse, if the `randomize` is enabled,
the start and end of the Text Range are redefined
with the same gap as the original range.
issue: https://github.com/thorvg/thorvg/issues/2178
Due to the lack of an analytical solution for Bezier
curves offsetting, a simple and computationally cheap
approximation has been implemented. The algorithm shifts
the segments connecting control points and determines
new points based on their intersections.
@issue: https://github.com/thorvg/thorvg/issues/2230
More precisely, culling the render objects by
determining if the group has no renderable objects.
Additionally, check opacity to quickly return
in the rendering process.
LottieRenderPooler is designed to manages rendering
instances(paints) efficiently through a simple pooling
mechanism to resuse among the animations
This replaces the previous individusal paints implemenations
among solidfill, precomp vierport and pictures,
also fix a potential paints corruption problems.
This patch provides initial support for the text range selector. Full support will be added gradually in subsequent steps. This is the first step.
Text range selector with following properties:
1. Text Range Selector (Units)
2. Text Style
- Fill Color
- Fill Opacity
- Stroke Color
- Stroke Width
- Stroke Opacity
- Opacity
- Rotation
- Position
- Scale
Previously, the Lottie builder didn't account for image asset sharing
among multiple layers. This update rectifies the situation.
issue: https://github.com/thorvg/thorvg/issues/2428
Layer identifiers do not have to be unique within
the entire file - they are unique within a given
group. Searching the entire composition to find
the referenced matte was an incorrect approach.
Error introduced by 1ee79a6c2a
@Issue: https://github.com/thorvg/thorvg/issues/2349
So far it hasn't been possible to specify
a matte layer - by default, it was the layer
above the calling layer. The 'tp' tag support
has been introduced, enabling referencing any
layer by its index.
In cases where the layer referencing the matte
was the first one, a segmentation fault was
observed. This issue has now been resolved.
@Issue: https://github.com/thorvg/thorvg/issues/2325
Added support for skew transformation by
a specified angle around a specified axis.
Applied to layers and shapes, not to repeaters.
@Issue: https://github.com/thorvg/thorvg/issues/2262
When resetting back to animated property, system causes an UAF because frames have been freed.
Mark frames in nullptr at the case, so it doesn't use frame data after freed.
Issue: #2255
The current development of the expression engine is experimental.
It does not support multi-threading.
Therefore, when tvg::Initializer::init() is configured
with more than one thread, expressions will be automatically disabled.
issue: https://github.com/thorvg/thorvg/issues/1640
These internal methods have been introduced to search for content within
an object (parent) using a given parameter (name or index).
- LottieLayer* LottieGroup::asset(const char* name)
- LottieLayer* LottieComposition::asset(const char* name)
- LottieLayer* LottieComposition::layer(uint16_t id)
- LottieLayer* LottieComposition::layer(const char* name)
This converts the frame number to the corresponding time.
- float LottieComposition::timeAtFrame(float frameNo)
A single animation might have a desinated markers with naming: 0 ~ 0.5 (sector A), 0.5 ~ 1.0 (sector B). Selecting one of them using a marker name(sector A) and could play only that part with animation controllers.
usage:
- `animation->segment("sectionA") // Named segment(Marker)`
- `auto cnt = animation->markerCnt()`
- `auto name = animation->markers(index)`
- `animation->segment(0, 0.5) // Segment`
- `animation->segment(&begin, &end)`
Co-authored-by: Jinny You <jinny@lottiefiles.com>
This correction addresses the drawing order of
objects when a group contains a TrimPath and
is merging shapes.
Additionally, the TrimPath method is can applied
to the engine to control the drawing behavior by
7f3dc541d6b7abcdc03facd884489f37c327fd98
issue: https://github.com/thorvg/thorvg/issues/2047
removed unused static condition.
static was prepared for optimization,
but not used at all.
we will revisit this later when time permits.
binary size: -6kb
When lottie is broken and provides invalid gradient, the program crashes in segmentation fault.
At that time, in the `populate` function, `ColorStop& color` doesn't have `input` but tries to use it.
Added checking nullptr logic. The function `populate` will not proceed and return 0 in that case.
related issue: #2072
Slot overriding tries to set property via the `LottieObject`. It potentially causes unexpected changes.
Revised the `override` function. The purpose of this patch is to aim atomic property to be overriden.
Implemented the ability to revert Lottie slots by calling override with nullptr.
This functionality allows for the complete reversal of applied slots.
usage:
- `animation->override(nullptr)`
Co-Authored-By: Hermet Park <hermet@lottiefiles.com>
Internal model and parser modifications have been made
to parse "sid" and retrieve their data into the LottieComposition.
This will enable dynamic changes to the following Lottie objects:
The slot feature will encompass these properties:
- LottieSolidStroke
- LottieSolidFill
- LottieGradientStroke
- LottieGradientFill
- LottieTextDoc"
Issue: https://github.com/thorvg/thorvg/issues/1808
Co-authored-by: Hermet Park <hermet@lottiefiles.com>
To ensure consistent properties, `LottieSolid` has been defined.
Both `LottieSolidStroke` and `LottieSolidFill` can be typecasted to the `LottieSolid`.
Previously, the Lottie parser expected a specific parsing order:
font followed by glyph, for optimal data processing.
However, since this order is not guaranteed,
we have revised the parsing logic to accommodate any order.
