在 Swift 中使用 async / await 编辑图像和视频，由 Metal 提供支持
异步图形
AsyncGraphics 中的核心值类型是 .
它就像一个图像，它可以与各种异步方法一起使用。Graphic
斯威夫特套餐
.package(url: "https://github.com/heestand-xyz/AsyncGraphics", from: "0.3.0")
import AsyncGraphics
图形 – 内容
可以使用静态函数创建 A，例如 或。GraphicGraphic.image(named:)Graphic.circle(size:radius:center:)
颜色
颜色用类型表示。 以创建具有十六进制值的自定义颜色。PixelColorimport PixelColor
static func color(_ color: PixelColor, size: CGSize) async throws -> Graphic
static func color(_ color: PixelColor, size: CGSize) async throws -> Graphic
例：
import PixelColor
let color: Graphic = try await .color(PixelColor(hex: "#FF8000"),
size: CGSize(width: 1000, height: 1000))
Image
Images are represented with .
This is a multi platform type alias to and .
for extra multi platform methods like for macOS.TMImageUIImageNSImageimport TextureMap.pngData()
static func image(_ image: TMImage) async throws -> Graphic
static func image(named name: String, in bundle: Bundle = .main) async throws -> Graphic
Example:
let image: Graphic = try await .image(named: "Image")
Circle
static func circle(radius: CGFloat? = nil, center: CGPoint? = nil, color: PixelColor = .white, backgroundColor: PixelColor = .black, size: CGSize) async throws -> Graphic
Example:
let circle: Graphic = try await .circle(radius: 250.0,
center: CGPoint(x: 500.0, y: 500.0),
color: .orange,
backgroundColor: .clear,
size: CGSize(width: 1000.0, height: 1000.0))
Frames
You can import a video to an array of s.Graphic
static func videoFrames(url: URL) async throws -> [Graphic]
Example:
guard let url: URL = Bundle.main.url(forResource: "Video", withExtension: "mov") else { return }
let frames: [Graphic] = try await .videoFrames(url: url)
Graphic – Effects
A can be modified with effect funcs e.g. or .Graphic.inverted().blend(graphic:blendingMode:placement:)
Invert
func inverted() async throws -> Graphic
Example:
let inverted: Graphic = try await someGraphic.inverted()
Blend
func blended(with graphic: Graphic, blendingMode: BlendingMode, placement: Placement = .fit) async throws -> Graphic
Example:
let blended: Graphic = try await someGraphic.blended(with: otherGraphic, blendingMode: .multiply)
Displace
func displaced(with graphic: Graphic, offset: CGFloat, origin: PixelColor = .gray, placement: Placement = .fill) async throws -> Graphic
Example:
let displaced: Graphic = try await someGraphic.displaced(with: otherGraphic, offset: 100.0)
Graphic – Export
A can be exported to a video with func .Graphic.video(fps:kbps:format:)
Video
func video(fps: Int = 30, kbps: Int = 1_000, format: VideoFormat = .mov) async throws -> Data
Examples:
let frames: [Graphic] = ...
let videoData: Data = try await frames.video(fps: 60, kbps: 750, format: .mp4)
let videoURL: URL = try await frames.video(fps: 24, kbps: 500, format: .mov)
