@pixi/utils/lib/color/premultiply.d.ts

Collection of utilities used by PixiJS

/**
 * maps premultiply flag and blendMode to adjusted blendMode
 * @memberof PIXI.utils
 * @type {Array<number[]>}
 */
export declare const premultiplyBlendMode: number[][];
/**
 * changes blendMode according to texture format
 * @memberof PIXI.utils
 * @function correctBlendMode
 * @param {number} blendMode - supposed blend mode
 * @param {boolean} premultiplied - whether source is premultiplied
 * @returns {number} true blend mode for this texture
 */
export declare function correctBlendMode(blendMode: number, premultiplied: boolean): number;
/**
 * combines rgb and alpha to out array
 * @memberof PIXI.utils
 * @function premultiplyRgba
 * @param {Float32Array|number[]} rgb - input rgb
 * @param {number} alpha - alpha param
 * @param {Float32Array} [out] - output
 * @param {boolean} [premultiply=true] - do premultiply it
 * @returns {Float32Array} vec4 rgba
 */
export declare function premultiplyRgba(rgb: Float32Array | number[], alpha: number, out?: Float32Array, premultiply?: boolean): Float32Array;
/**
 * premultiplies tint
 * @memberof PIXI.utils
 * @function premultiplyTint
 * @param {number} tint - integer RGB
 * @param {number} alpha - floating point alpha (0.0-1.0)
 * @returns {number} tint multiplied by alpha
 */
export declare function premultiplyTint(tint: number, alpha: number): number;
/**
 * converts integer tint and float alpha to vec4 form, premultiplies by default
 * @memberof PIXI.utils
 * @function premultiplyTintToRgba
 * @param {number} tint - input tint
 * @param {number} alpha - alpha param
 * @param {Float32Array} [out] - output
 * @param {boolean} [premultiply=true] - do premultiply it
 * @returns {Float32Array} vec4 rgba
 */
export declare function premultiplyTintToRgba(tint: number, alpha: number, out: Float32Array, premultiply?: boolean): Float32Array;