Class FilterTexPacker: private _p: private _f: private _gfx: private _w: private _h: private _pad: _textures: Texture[] _big: Frame[] _used: Map<number, { rect: Rect tex: Texture used: number }> _curMap: TexMap _tex2Map: Map<Texture, TexMap> private _hasPendingRefresh: private _newTexture: _sync() => void _single(img: ImageSource) => Frame _blit(img: ImageSource, x: number, y: number, chopX: number, chopY: number, imgWidth: number, imgHeight: number) => void _add(img: ImageSource, chopQuad: Quad | undefined) => Frame _addPrepacked(img: ImageSource, frames: Quad[]) => Frame[] _free() => void _remove(packerId: number) => void