#include <geometry.h>
Public Member Functions | |
virtual | ~Geometry () |
virtual GeometryResult | GetPositionBuffer (const ContentContext &renderer, const Entity &entity, RenderPass &pass) const =0 |
virtual GeometryResult::Mode | GetResultMode () const |
virtual std::optional< Rect > | GetCoverage (const Matrix &transform) const =0 |
virtual bool | CoversArea (const Matrix &transform, const Rect &rect) const |
Determines if this geometry, transformed by the given transform , will completely cover all surface area of the given rect . More... | |
virtual bool | IsAxisAlignedRect () const |
virtual bool | CanApplyMaskFilter () const |
virtual Scalar | ComputeAlphaCoverage (const Matrix &transform) const |
Static Public Member Functions | |
static std::unique_ptr< Geometry > | MakeFillPath (const flutter::DlPath &path, std::optional< Rect > inner_rect=std::nullopt) |
static std::unique_ptr< Geometry > | MakeStrokePath (const flutter::DlPath &path, const StrokeParameters &stroke={}) |
static std::unique_ptr< Geometry > | MakeCover () |
static std::unique_ptr< Geometry > | MakeRect (const Rect &rect) |
static std::unique_ptr< Geometry > | MakeOval (const Rect &rect) |
static std::unique_ptr< Geometry > | MakeLine (const Point &p0, const Point &p1, const StrokeParameters &stroke) |
static std::unique_ptr< Geometry > | MakeCircle (const Point ¢er, Scalar radius) |
static std::unique_ptr< Geometry > | MakeStrokedCircle (const Point ¢er, Scalar radius, Scalar stroke_width) |
static std::unique_ptr< Geometry > | MakeFilledArc (const Rect &oval_bounds, Degrees start, Degrees sweep, bool include_center) |
static std::unique_ptr< Geometry > | MakeStrokedArc (const Rect &oval_bounds, Degrees start, Degrees sweep, const StrokeParameters &stroke) |
static std::unique_ptr< Geometry > | MakeRoundRect (const Rect &rect, const Size &radii) |
static std::unique_ptr< Geometry > | MakeRoundSuperellipse (const Rect &rect, Scalar corner_radius) |
static Scalar | ComputeStrokeAlphaCoverage (const Matrix &entity, Scalar stroke_width) |
Compute an alpha value to simulate lower coverage of fractional pixel strokes. More... | |
static GeometryResult | ComputePositionGeometry (const ContentContext &renderer, const Tessellator::VertexGenerator &generator, const Entity &entity, RenderPass &pass) |
Definition at line 50 of file geometry.h.
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inlinevirtual |
Definition at line 52 of file geometry.h.
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virtual |
Reimplemented in impeller::CoverGeometry, and impeller::DlVerticesGeometry.
Definition at line 144 of file geometry.cc.
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inlinevirtual |
Reimplemented in impeller::StrokeSegmentsGeometry, impeller::LineGeometry, impeller::CircleGeometry, and impeller::ArcGeometry.
Definition at line 125 of file geometry.h.
Referenced by impeller::ColorSourceContents::AppliesAlphaForStrokeCoverage(), impeller::SolidColorContents::Render(), and impeller::TiledTextureContents::Render().
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Definition at line 26 of file geometry.cc.
References impeller::HostBuffer::Emplace(), impeller::Tessellator::VertexGenerator::GenerateVertices(), impeller::Entity::GetShaderTransform(), impeller::ContentContext::GetTransientsBuffer(), impeller::Tessellator::VertexGenerator::GetTriangleType(), impeller::Tessellator::VertexGenerator::GetVertexCount(), impeller::kNone, and impeller::GeometryResult::type.
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Compute an alpha value to simulate lower coverage of fractional pixel strokes.
Definition at line 149 of file geometry.cc.
References impeller::kMinStrokeSize, and transform.
Referenced by impeller::ArcGeometry::ComputeAlphaCoverage(), impeller::CircleGeometry::ComputeAlphaCoverage(), impeller::LineGeometry::ComputeAlphaCoverage(), and impeller::StrokeSegmentsGeometry::ComputeAlphaCoverage().
Determines if this geometry, transformed by the given transform
, will completely cover all surface area of the given rect
.
This is a conservative estimate useful for certain optimizations.
true
if the transformed geometry is guaranteed to cover the given rect
. May return false
in many undetected cases where the transformed geometry does in fact cover the rect
. Reimplemented in impeller::SuperellipseGeometry, impeller::RoundSuperellipseGeometry, impeller::FillRoundRectGeometry, impeller::RoundRectGeometry, impeller::FillRectGeometry, impeller::LineGeometry, impeller::FillPathSourceGeometry, impeller::EllipseGeometry, impeller::CoverGeometry, impeller::CircleGeometry, and impeller::ArcGeometry.
Definition at line 136 of file geometry.cc.
Referenced by impeller::SolidColorContents::AsBackgroundColor().
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pure virtual |
Implemented in impeller::ArcStrokeGeometry, impeller::StrokePathSourceGeometry, impeller::StrokeRectGeometry, impeller::FillRectGeometry, impeller::PointFieldGeometry, impeller::LineGeometry, and impeller::DlVerticesGeometry.
Referenced by impeller::Canvas::ClipGeometry(), impeller::ColorSourceContents::DrawGeometry(), impeller::ColorSourceContents::GetCoverage(), impeller::SolidColorContents::GetCoverage(), and impeller::TiledTextureContents::RenderToSnapshot().
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pure virtual |
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virtual |
Definition at line 58 of file geometry.cc.
References impeller::GeometryResult::kNormal.
Referenced by impeller::ColorSourceContents::DrawGeometry().
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Reimplemented in impeller::SuperellipseGeometry, impeller::RoundSuperellipseGeometry, impeller::RoundRectGeometry, impeller::FillRectGeometry, impeller::LineGeometry, impeller::EllipseGeometry, impeller::CircleGeometry, and impeller::ArcGeometry.
Definition at line 140 of file geometry.cc.
Referenced by impeller::Canvas::ClipGeometry().
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Definition at line 97 of file geometry.cc.
Referenced by impeller::testing::TEST().
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Definition at line 79 of file geometry.cc.
Referenced by impeller::testing::TEST_P().
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Definition at line 108 of file geometry.cc.
References start.
Referenced by impeller::testing::TEST().
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Definition at line 62 of file geometry.cc.
Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().
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Definition at line 91 of file geometry.cc.
Referenced by impeller::testing::TEST().
Definition at line 87 of file geometry.cc.
Definition at line 83 of file geometry.cc.
Referenced by impeller::Canvas::DrawVertices(), impeller::testing::TEST(), and impeller::testing::TEST_P().
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Definition at line 125 of file geometry.cc.
Referenced by impeller::testing::TEST().
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Definition at line 130 of file geometry.cc.
Referenced by impeller::testing::TEST_P().
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Definition at line 116 of file geometry.cc.
References start.
Referenced by impeller::testing::TEST().
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Definition at line 102 of file geometry.cc.
Referenced by impeller::testing::TEST().
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Definition at line 68 of file geometry.cc.
References impeller::StrokeParameters::miter_limit.
Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().