import type { ClipRegion, ClipRegionReleaseGuard, MatrixLike, Path, PathWinding, RectangleLike } from '@flighthq/types/contract';
export declare function acquireClipRegion(): ClipRegion;
export declare function clipRegionContainsPoint(clip: Readonly<ClipRegion>, x: number, y: number): boolean;
export declare function clipRegionContainsRectangle(clip: Readonly<ClipRegion>, rectangle: Readonly<RectangleLike>): boolean;
export declare function clipRegionIntersectsRectangle(clip: Readonly<ClipRegion>, rectangle: Readonly<RectangleLike>): boolean;
export declare function cloneClipRegion(clip: Readonly<ClipRegion>): ClipRegion;
export declare function copyClipRegion(out: ClipRegion, source: Readonly<ClipRegion>): void;
export declare function createClipRegionFromCircle(x: number, y: number, radius: number, tolerance?: number): ClipRegion;
export declare function createClipRegionFromContours(contours: Readonly<ReadonlyArray<ReadonlyArray<number>>>, winding: PathWinding): ClipRegion;
export declare function createClipRegionFromEllipse(rectangle: Readonly<RectangleLike>, tolerance?: number): ClipRegion;
export declare function createClipRegionFromPath(path: Readonly<Path>, tolerance?: number): ClipRegion;
export declare function createClipRegionFromRectangle(rectangle: Readonly<RectangleLike>): ClipRegion;
export declare function createClipRegionFromRoundedRectangle(rectangle: Readonly<RectangleLike>, radius: number, tolerance?: number): ClipRegion;
export declare function equalsClipRegion(a: Readonly<ClipRegion>, b: Readonly<ClipRegion>): boolean;
export declare function getClipRegionBounds(out: RectangleLike, clip: Readonly<ClipRegion>): void;
export declare function intersectClipRegions(out: ClipRegion, a: Readonly<ClipRegion>, b: Readonly<ClipRegion>): void;
export declare function invalidateClipRegion(clip: ClipRegion): void;
export declare function isClipRegionEmpty(clip: Readonly<ClipRegion>): boolean;
export declare function isClipRegionRectangular(clip: Readonly<ClipRegion>): boolean;
export declare function normalizeClipRegion(out: ClipRegion, clip: Readonly<ClipRegion>): void;
export declare function releaseClipRegion(clip: ClipRegion): void;
export declare function setClipRegionReleaseGuard(guard: ClipRegionReleaseGuard | null): void;
export declare function setClipRegionToRectangle(out: ClipRegion, rectangle: Readonly<RectangleLike>): void;
export declare function transformClipRegion(out: ClipRegion, clip: Readonly<ClipRegion>, matrix: Readonly<MatrixLike>): void;
export declare function unionClipRegions(out: ClipRegion, a: Readonly<ClipRegion>, b: Readonly<ClipRegion>): void;
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