import { $internal, $repr } from '../shared/symbols.ts';
import type { BaseData } from './wgslTypes.ts';
export interface WgslSamplerProps {
    addressModeU?: GPUAddressMode;
    addressModeV?: GPUAddressMode;
    /**
     * Specifies the address modes for the texture width, height, and depth
     * coordinates, respectively.
     */
    addressModeW?: GPUAddressMode;
    /**
     * Specifies the sampling behavior when the sample footprint is smaller than or equal to one
     * texel.
     */
    magFilter?: GPUFilterMode;
    /**
     * Specifies the sampling behavior when the sample footprint is larger than one texel.
     */
    minFilter?: GPUFilterMode;
    /**
     * Specifies behavior for sampling between mipmap levels.
     */
    mipmapFilter?: GPUMipmapFilterMode;
    lodMinClamp?: number;
    /**
     * Specifies the minimum and maximum levels of detail, respectively, used internally when
     * sampling a texture.
     */
    lodMaxClamp?: number;
    /**
     * Specifies the maximum anisotropy value clamp used by the sampler. Anisotropic filtering is
     * enabled when {@link GPUSamplerDescriptor.maxAnisotropy} is > 1 and the implementation supports it.
     * Anisotropic filtering improves the image quality of textures sampled at oblique viewing
     * angles. Higher {@link GPUSamplerDescriptor.maxAnisotropy} values indicate the maximum ratio of
     * anisotropy supported when filtering.
     *
     * Most implementations support {@link GPUSamplerDescriptor.maxAnisotropy} values in range
     * between 1 and 16, inclusive. The used value of {@link GPUSamplerDescriptor.maxAnisotropy}
     * will be clamped to the maximum value that the platform supports.
     * The precise filtering behavior is implementation-dependent.
     */
    maxAnisotropy?: number;
}
export interface WgslComparisonSamplerProps {
    compare: GPUCompareFunction;
    addressModeU?: GPUAddressMode;
    addressModeV?: GPUAddressMode;
    /**
     * Specifies the address modes for the texture width, height, and depth
     * coordinates, respectively.
     */
    addressModeW?: GPUAddressMode;
    /**
     * Specifies the sampling behavior when the sample footprint is smaller than or equal to one
     * texel.
     */
    magFilter?: GPUFilterMode;
    /**
     * Specifies the sampling behavior when the sample footprint is larger than one texel.
     */
    minFilter?: GPUFilterMode;
    /**
     * Specifies behavior for sampling between mipmap levels.
     */
    mipmapFilter?: GPUMipmapFilterMode;
    lodMinClamp?: number;
    /**
     * Specifies the minimum and maximum levels of detail, respectively, used internally when
     * sampling a texture.
     */
    lodMaxClamp?: number;
    /**
     * Specifies the maximum anisotropy value clamp used by the sampler. Anisotropic filtering is
     * enabled when {@link GPUSamplerDescriptor.maxAnisotropy} is > 1 and the implementation supports it.
     * Anisotropic filtering improves the image quality of textures sampled at oblique viewing
     * angles. Higher {@link GPUSamplerDescriptor.maxAnisotropy} values indicate the maximum ratio of
     * anisotropy supported when filtering.
     *
     * Most implementations support {@link GPUSamplerDescriptor.maxAnisotropy} values in range
     * between 1 and 16, inclusive. The used value of {@link GPUSamplerDescriptor.maxAnisotropy}
     * will be clamped to the maximum value that the platform supports.
     * The precise filtering behavior is implementation-dependent.
     */
    maxAnisotropy?: number;
}
export interface sampler {
    [$internal]: true;
    type: 'sampler';
}
export declare function sampler(): WgslSampler;
export interface comparisonSampler {
    [$internal]: Record<string, never>;
    type: 'sampler_comparison';
}
export declare function comparisonSampler(): WgslComparisonSampler;
export interface WgslSampler extends BaseData {
    readonly [$repr]: sampler;
    readonly type: 'sampler';
}
export interface WgslComparisonSampler extends BaseData {
    readonly [$repr]: comparisonSampler;
    readonly type: 'sampler_comparison';
}
export declare function isWgslSampler(value: unknown): value is WgslSampler;
export declare function isWgslComparisonSampler(value: unknown): value is WgslComparisonSampler;