import { type SkCanvas, type SkImage } from '@shopify/react-native-skia';
import type { Frame } from 'react-native-vision-camera';
/**
 * Represents the state for rendering
 * a Frame.
 */
export interface SkiaOnFrameState {
    /**
     * The {@linkcode Frame} wrapped as a drawable
     * GPU-texture.
     *
     * The `frameTexture` can either be drawn to
     * the {@linkcode canvas} directly in which
     * case it will just be displayed as-is, or
     * drawn with a `paint`, in which case it will
     * be used as an input texture for sampling it
     * inside a Skia Shader.
     *
     * @example
     * ```ts
     * // Draw as-is:
     * canvas.drawImage(frameTexture, 0, 0)
     * // Draw with shader:
     * const paint = ...
     * const shader = ...
     * paint.setShader(shader)
     * canvas.drawImage(frameTexture, 0, 0, paint)
     * ```
     */
    frameTexture: SkImage;
    /**
     * The GPU-canvas to draw the {@linkcode frameTexture}
     * in.
     * @example
     * ```ts
     * canvas.drawImage(frameTexture, 0, 0)
     * ```
     */
    canvas: SkCanvas;
}
/**
 * Renders the given {@linkcode Frame} to a {@linkcode SkImage}
 * and returns it.
 * @param frame The {@linkcode Frame} to render. It will be converted to a Texture.
 * @param onDraw A provided draw function to perform the rendering.
 * @internal
 * @worklet
 */
export declare function renderToTexture(frame: Frame, onDraw: (state: SkiaOnFrameState) => void): SkImage;