/**
 * A custom melonJS WebGL batcher for rendering Spine skeletons with two-color tinting.
 * Uses Spine's official two-color shader and the base WebGLBatcher's indexed drawing support.
 * @category Rendering
 */
export default class WebGLSpineBatcher extends WebGLBatcher {
    /**
     * Initialize (or re-initialize) the batcher.
     * Settings are built here rather than in the constructor so the
     * renderer's context-restore recovery can re-create all GPU
     * resources with a bare `batcher.init(renderer)` call, matching
     * the engine's built-in batchers.
     * @param {WebGLRenderer} renderer - the current WebGL renderer session
     * @ignore
     */
    init(renderer: WebGLRenderer): void;
    /**
     * the current texture bound to the batcher
     * @type {object|null}
     * @ignore
     */
    lastTexture: object | null | undefined;
    /**
     * Set the blend mode for subsequent draw calls.
     * Maps Spine BlendMode enum to melonJS blend mode strings.
     * @param {number} blendMode - Spine BlendMode enum value (0=Normal, 1=Additive, 2=Multiply, 3=Screen)
     * @param {boolean} premultipliedAlpha - whether textures use premultiplied alpha
     */
    setBlendMode(blendMode: number, premultipliedAlpha: boolean): void;
    /**
     * Draw Spine vertices with the given texture and triangle indices.
     * This matches the Spine PolygonBatcher.draw() API.
     * @param {object} texture - a Spine GLTexture object
     * @param {ArrayLike<number>} vertices - interleaved vertex data
     * @param {number[]} indices - triangle index array
     */
    draw(texture: object, vertices: ArrayLike<number>, indices: number[]): void;
}
import { WebGLBatcher } from "melonjs";
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