@shopify/react-native-skia/lib/module/skia/web/JsiSkImageFactory.js

High-performance React Native Graphics using Skia

import { isNativeBufferWeb } from "../types";
import { Host, getEnum } from "./Host";
import { JsiSkImage } from "./JsiSkImage";
import { JsiSkData } from "./JsiSkData";
export class JsiSkImageFactory extends Host {
  constructor(CanvasKit) {
    super(CanvasKit);
  }
  MakeImageFromViewTag(viewTag) {
    const view = viewTag;
    // TODO: Implement screenshot from view in React JS
    console.log(view);
    return Promise.resolve(null);
  }
  MakeImageFromNativeBuffer(buffer, surface, image) {
    if (!isNativeBufferWeb(buffer)) {
      throw new Error("Invalid NativeBuffer");
    }
    if (!surface) {
      // TODO: this is way to slow
      const img = this.CanvasKit.MakeImageFromCanvasImageSource(buffer);
      return new JsiSkImage(this.CanvasKit, img);
    } else if (!image) {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const img = surface.makeImageFromTextureSource(buffer);
      return new JsiSkImage(this.CanvasKit, img);
    } else {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const img = surface.updateTextureFromSource(image, buffer);
      return new JsiSkImage(this.CanvasKit, img);
    }
  }
  MakeImageFromEncoded(encoded) {
    const image = this.CanvasKit.MakeImageFromEncoded(JsiSkData.fromValue(encoded));
    if (image === null) {
      return null;
    }
    return new JsiSkImage(this.CanvasKit, image);
  }
  MakeImage(info, data, bytesPerRow) {
    // see toSkImageInfo() from canvaskit
    const image = this.CanvasKit.MakeImage({
      alphaType: getEnum(this.CanvasKit.AlphaType, info.alphaType),
      colorSpace: this.CanvasKit.ColorSpace.SRGB,
      colorType: getEnum(this.CanvasKit.ColorType, info.colorType),
      height: info.height,
      width: info.width
    }, JsiSkData.fromValue(data), bytesPerRow);
    if (image === null) {
      return null;
    }
    return new JsiSkImage(this.CanvasKit, image);
  }
}
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