import type { TSLFloatNode, TSLIntNode, TSLUintNode } from '../../types/tsl.js';
/** Encode a float expression into a signed fixed-point grid value. */
export interface MPMFixedPointEncodeFunction {
    (value: TSLFloatNode): TSLIntNode;
}
/** Decode a signed fixed-point grid value into a float expression. */
export interface MPMFixedPointDecodeFunction {
    (value: TSLIntNode): TSLFloatNode;
}
/** Fixed-point scale used for grid momentum atomics. */
export declare const MPM_MOMENTUM_FIXED_POINT: number;
/** Fixed-point scale used for grid mass atomics. */
export declare const MPM_MASS_FIXED_POINT: number;
/**
 * The audit threshold deliberately stays below signed-i32 overflow. At the
 * default scales this corresponds to roughly 1024 momentum units or 128 mass
 * units in one grid cell. Keeping the high bit clear also makes absolute-value
 * diagnostics well-defined for every encoded value.
 */
export declare const MPM_FIXED_POINT_AUDIT_LIMIT: number;
export declare const MPM_MOMENTUM_OVERFLOW_BOUND: number;
export declare const MPM_MASS_OVERFLOW_BOUND: number;
export declare const encodeMPMMomentum: MPMFixedPointEncodeFunction;
export declare const decodeMPMMomentum: MPMFixedPointDecodeFunction;
export declare const encodeMPMMass: MPMFixedPointEncodeFunction;
export declare const decodeMPMMass: MPMFixedPointDecodeFunction;
/** Record the largest absolute encoded value in an atomic uint audit slot. */
export declare function auditMPMFixedPointValue(auditSlot: TSLUintNode, encodedValue: TSLIntNode): void;