ReadingPixelDataFromADrawableTexture

/* See LICENSE folder for this sample’s licensing information. Abstract: Header for a simple container that stores image data. */ #import <Foundation/Foundation.h> @interface AAPLImage : NSObject // Initialize the image by loading a simple TGA file. // This method doesn't load compressed, paletted, or color-mapped images. -(nullable instancetype)initWithTGAFileAtLocation:(nonnull NSURL *)location; // Initialize the image by loading an `NSData` object with tightly packed // `BGRA8Unorm` data and dimensions. -(nullable instancetype)initWithBGRA8UnormData:(nonnull NSData *)data width:(NSUInteger)width height:(NSUInteger)height; // Save the image to a TGA file at the given location. - (void)saveToTGAFileAtLocation:(nonnull NSURL *)location; // The width of the image, in pixels. @property (nonatomic, readonly) NSUInteger width; // The height of the image, in pixels. @property (nonatomic, readonly) NSUInteger height; // The image data in 32-bits-per-pixel (bpp) BGRA form, which is equivalent // to `MTLPixelFormatBGRA8Unorm`. @property (nonatomic, readonly, nonnull) NSData *data; @end