@pixi/core/lib/renderTexture/GenerateTextureSystem.mjs

Core PixiJS

import { ExtensionType, extensions } from '@pixi/extensions';
import { Transform, Matrix } from '@pixi/math';
import { RenderTexture } from './RenderTexture.mjs';

const tempTransform = new Transform();
class GenerateTextureSystem {
  constructor(renderer) {
    this.renderer = renderer;
    this._tempMatrix = new Matrix();
  }
  generateTexture(displayObject, options) {
    const { region: manualRegion, ...textureOptions } = options || {};
    const region = manualRegion || displayObject.getLocalBounds(null, true);
    if (region.width === 0)
      region.width = 1;
    if (region.height === 0)
      region.height = 1;
    const renderTexture = RenderTexture.create({
      width: region.width,
      height: region.height,
      ...textureOptions
    });
    this._tempMatrix.tx = -region.x;
    this._tempMatrix.ty = -region.y;
    const transform = displayObject.transform;
    displayObject.transform = tempTransform;
    this.renderer.render(displayObject, {
      renderTexture,
      transform: this._tempMatrix,
      skipUpdateTransform: !!displayObject.parent,
      blit: true
    });
    displayObject.transform = transform;
    return renderTexture;
  }
  destroy() {
  }
}
GenerateTextureSystem.extension = {
  type: [
    ExtensionType.RendererSystem,
    ExtensionType.CanvasRendererSystem
  ],
  name: "textureGenerator"
};
extensions.add(GenerateTextureSystem);

export { GenerateTextureSystem };
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