/*

 Copyright (C) 2015-2016 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Utility class for creating a 2d Gaussian texture.

 */

#import <Metal/Metal.h>

@interface MetalGaussianMap : NSObject

// Query to find if a texture was generated successfully

@property (readonly) BOOL haveTexture;

// Generate a texture from samples generated by convolving the initial

// data with a Gaussian white noise

@property (nullable, nonatomic, setter=acquire:) id<MTLDevice> device;

// Gaussian texture

@property (nullable, readonly) id<MTLTexture> texture;

// Gaussian texture resolution

@property (nonatomic) uint32_t texRes;

// Number of color channels. Defaults to 4 for RGBA

@property (nonatomic) uint32_t channels;

// Gaussian texture width

@property (readonly) uint32_t width;

// Gaussian texture height

@property (readonly) uint32_t height;

// Gaussian texture bytes per row

@property (readonly) uint32_t rowBytes;

@end