CIContext

Initializes a context without a specific rendering destination, using default options.

Initializes a context without a specific rendering destination, using the specified options.

Creates a Core Image context from a Quartz context, using the specified options.

Creates a Core Image context from a CGL context, using the specified options, color space, and pixel format object.

Creates a Core Image context from an EAGL context.

Creates a Core Image context from an EAGL context using the specified options.

Creates an OpenGL-based Core Image context using a GPU that is not currently driving a display.

Creates an OpenGL-based Core Image context using a GPU that is not currently driving a display, with the specified options.

Creates a Core Image context using the specified Metal device.

Creates a Core Image context using the specified Metal device and options.

Creates a Quartz 2D image from a region of a Core Image image object.

Creates a Quartz 2D image from a region of a Core Image image object.

Creates a Quartz 2D image from a region of a Core Image image object with deferred rendering.

Creates a CGLayer object from the provided parameters.

Renders to the given bitmap.

Renders an image into a pixel buffer.

Renders a region of an image into a pixel buffer.

Renders a region of an image into an IOSurface object.

Renders a region of an image to a Metal texture.

Renders a region of an image to a rectangle in the context destination.

Returns the maximum size allowed for any image rendered into the context.

Returns the maximum size allowed for any image created by the context.

Frees any cached data, such as temporary images, associated with the context and runs the garbage collector.

Runs the garbage collector to reclaim any resources that the context no longer requires.

Returns the number of GPUs not currently driving a display.

The working color space of the Core Image context.

The working pixel format of the Core Image context.

Renders the image and exports the resulting image data in TIFF format.

Renders the image and exports the resulting image data in JPEG format.

Renders the image and exports the resulting image data in PNG format.

Renders the image and exports the resulting image data in HEIF format.

Renders the image and exports the resulting image data as a file in TIFF format.

Renders the image and exports the resulting image data as a file in JPEG format.

Renders the image and exports the resulting image data as a file in PNG format.

Renders the image and exports the resulting image data as a file in HEIF format.

options dictionary key for image export methods to represent data as AVDepthData.

options dictionary key for image export methods to output depth data.

options dictionary key for image export methods to output disparity data.

A key for the color space to use for images before they are rendered to the context.

A key for the color space to use for image operations.

An option for the color format to use for intermediate results when rendering with the context.

An option controlling the quality of image downsampling operations performed by the context.

An option for whether output rendering by the context produces alpha-premultiplied pixels.

An option for whether the context caches the contents of any intermediate pixel buffers it uses during rendering.

A key for enabling software renderer use. If the associated NSNumber object is true, the software renderer is required.

A key for enabling low-priority GPU use.

An optional call to warm up a CIContext so that subsequent calls to render with the same arguments run more efficiently.

Fills the entire destination with black or clear depending on its alphaMode.

Renders a portion of an image to a point of destination.

Renders an image to a destination so that point (0, 0) of the image maps to point (0, 0) of the destination.

Apply effects such as sepia tint, highlight strengthening, and scaling to images.

A representation of an image to be processed or produced by Core Image filters.

An image processor that produces an image by manipulating one or more input images or by generating new image data.

Colors, vectors, and other types used in applying or creating image filters.