/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/// <amd-module name="@nanopore/tfjs-backend-webgpu/dist/buffer_manager" />
/// <reference types="@webgpu/types/dist" />
export declare class BufferManager {
    private device;
    private numUsedBuffers;
    private numFreeBuffers;
    private freeBuffers;
    private usedBuffers;
    numBytesUsed: number;
    numBytesAllocated: number;
    constructor(device: GPUDevice);
    acquireUploadBuffer(size: number, usage: GPUBufferUsageFlags): GPUBuffer;
    acquireBuffer(size: number, usage: GPUBufferUsageFlags, mappedAtCreation?: boolean): GPUBuffer;
    releaseBuffer(buffer: GPUBuffer, size: number, usage: GPUBufferUsageFlags): void;
    releaseUploadBuffer(buffer: GPUBuffer, size: number, usage: GPUBufferUsageFlags): void;
    getNumUsedBuffers(): number;
    getNumFreeBuffers(): number;
    dispose(): void;
}