#include <algorithm>#include <cmath>#include <string>#include <unordered_map>#include <variant>#include "donner/base/MathUtils.h"#include "donner/base/Transform.h"#include "donner/svg/components/animation/AnimationValueSampler.h"#include "donner/svg/components/filter/FilterGraph.h"Classes | |
| struct | donner::svg::FilterRegionSample |
| Resolved clipping bounds and optional un-clipped animated geometry, in user coordinates. More... | |
| struct | donner::svg::FilterRegionContext |
| Per-invocation filter coordinates and subregion history, independent of GPU resources. More... | |
Namespaces | |
| namespace | donner |
| Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css. | |
| namespace | donner::svg |
| Donner SVG library, which can load, manipulate and render SVG files. | |
Functions | |
| double | donner::svg::BoundedPositiveFilterPixels (double value) |
| Clamp a finite nonnegative radius to the filter-work bound. | |
| double | donner::svg::BoundedSignedFilterPixels (double value) |
| Clamp a finite offset to the filter-work bound. | |
| size_t | donner::svg::FilterInputSlotCount (const components::FilterNode &node) |
| The number of inputs a primitive reads through the filter attribute surface. feComposite, feBlend and feDisplacementMap each take a second input (in2); feMerge is variadic and reads exactly the list it was built with, and every other primitive reads at most one input. The cap of two is deliberate rather than a lower bound: those primitives never sample a third input, so an extra entry a caller appends must not widen the node's subregion either. | |
| components::FilterInput | donner::svg::FilterInputOrDefault (const components::FilterNode &node, size_t index) |
The input in slot index, or the default for a slot the graph left empty. A slot the graph never populated is an unspecified in/in2 attribute, and both resolve the same way: to the preceding primitive's result, which is SourceGraphic only when this node is the first primitive in the filter. Falling back to the node's own first input instead would silently composite, blend, or displace a buffer against itself. | |
| double | donner::svg::FilterDeviceScaleX (const Transform2d &transform) |
| Device scale of the filter X axis. | |
| double | donner::svg::FilterDeviceScaleY (const Transform2d &transform, double scaleX) |
| Device scale of the filter Y axis. | |
| double | donner::svg::FilterLengthInPixels (double value, double bound, double scale, bool objectBounds) |
| Resolve an effect length in device pixels. | |
| Vector2d | donner::svg::FilterOffsetInPixels (Vector2d offset, Vector2d bounds, bool objectBounds, const Transform2d &transform) |
| Resolve a filter offset vector in device coordinates. | |
| std::optional< Transform2d > | donner::svg::FiniteFilterInverse (const Transform2d &deviceFromFilter) |
| Invert only finite, nonsingular transforms whose inverse remains finite. | |
1.15.0