Instance Methods

(nonnull instancetype) - copyWithZone:

Class Methods

(__nonnull instancetype) + imageDescriptorWithChannelFormat:width:height:featureChannels:
(__nonnull instancetype) + imageDescriptorWithChannelFormat:width:height:featureChannels:numberOfImages:usage:

Properties

NSUInteger width
NSUInteger height
NSUInteger featureChannels
NSUInteger numberOfImages
MTLPixelFormat pixelFormat
MPSImageFeatureChannelFormat channelFormat
MTLCPUCacheMode cpuCacheMode
MTLStorageMode storageMode
MTLTextureUsage usage

- (nonnull instancetype) copyWithZone: (NSZone *__nullable) zone

+ (__nonnull instancetype) imageDescriptorWithChannelFormat: (MPSImageFeatureChannelFormat) channelFormat(NSUInteger) width(NSUInteger) height(NSUInteger) featureChannels

Create a MPSImageDescriptor for a single read/write cnn image.

+ (__nonnull instancetype) imageDescriptorWithChannelFormat: (MPSImageFeatureChannelFormat) channelFormat(NSUInteger) width(NSUInteger) height(NSUInteger) featureChannels(NSUInteger) numberOfImages(MTLTextureUsage) usage

Create a MPSImageDescriptor for a read/write cnn image with option to set usage and batch size (numberOfImages).

- channelFormat [read], [write], [nonatomic], [assign]

The storage format to use for each channel in the image.

- cpuCacheMode [read], [write], [nonatomic], [assign]

Options to specify CPU cache mode of texture resource. Default = MTLCPUCacheModeDefaultCache

- featureChannels [read], [write], [nonatomic], [assign]

The number of feature channels per pixel. Default = 1.

- height [read], [write], [nonatomic], [assign]

The height of the CNN image. The formal height of the CNN image in pixels. Default = 1.

- numberOfImages [read], [write], [nonatomic], [assign]

The number of images for batch processing. Default = 1.

- pixelFormat [read], [nonatomic], [assign]

The MTLPixelFormat expected for the underlying texture.

- storageMode [read], [write], [nonatomic], [assign]

To specify storage mode of texture resource. Storage mode options:

Default =   MTLStorageModeShared on iOS


            MTLStorageModeManaged on Mac OSX
MTLStorageModeShared not supported on Mac OSX.
See Metal headers for synchronization requirements when using StorageModeManaged

- usage [read], [write], [nonatomic], [assign]

Description of texture usage. Default = MTLTextureUsageShaderRead/Write

- width [read], [write], [nonatomic], [assign]

The width of the CNN image. The formal width of the CNN image in pixels. Default = 1.