@pixi/core/lib/renderTexture/RenderTexturePool.js

Core PixiJS

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var constants = require('@pixi/constants');
var utils = require('@pixi/utils');
var BaseRenderTexture = require('./BaseRenderTexture.js');
var RenderTexture = require('./RenderTexture.js');

class RenderTexturePool {
  constructor(textureOptions) {
    this.texturePool = {};
    this.textureOptions = textureOptions || {};
    this.enableFullScreen = false;
    this._pixelsWidth = 0;
    this._pixelsHeight = 0;
  }
  createTexture(realWidth, realHeight, multisample = constants.MSAA_QUALITY.NONE) {
    const baseRenderTexture = new BaseRenderTexture.BaseRenderTexture(Object.assign({
      width: realWidth,
      height: realHeight,
      resolution: 1,
      multisample
    }, this.textureOptions));
    return new RenderTexture.RenderTexture(baseRenderTexture);
  }
  getOptimalTexture(minWidth, minHeight, resolution = 1, multisample = constants.MSAA_QUALITY.NONE) {
    let key;
    minWidth = Math.ceil(minWidth * resolution - 1e-6);
    minHeight = Math.ceil(minHeight * resolution - 1e-6);
    if (!this.enableFullScreen || minWidth !== this._pixelsWidth || minHeight !== this._pixelsHeight) {
      minWidth = utils.nextPow2(minWidth);
      minHeight = utils.nextPow2(minHeight);
      key = ((minWidth & 65535) << 16 | minHeight & 65535) >>> 0;
      if (multisample > 1) {
        key += multisample * 4294967296;
      }
    } else {
      key = multisample > 1 ? -multisample : -1;
    }
    if (!this.texturePool[key]) {
      this.texturePool[key] = [];
    }
    let renderTexture = this.texturePool[key].pop();
    if (!renderTexture) {
      renderTexture = this.createTexture(minWidth, minHeight, multisample);
    }
    renderTexture.filterPoolKey = key;
    renderTexture.setResolution(resolution);
    return renderTexture;
  }
  getFilterTexture(input, resolution, multisample) {
    const filterTexture = this.getOptimalTexture(input.width, input.height, resolution || input.resolution, multisample || constants.MSAA_QUALITY.NONE);
    filterTexture.filterFrame = input.filterFrame;
    return filterTexture;
  }
  returnTexture(renderTexture) {
    const key = renderTexture.filterPoolKey;
    renderTexture.filterFrame = null;
    this.texturePool[key].push(renderTexture);
  }
  returnFilterTexture(renderTexture) {
    this.returnTexture(renderTexture);
  }
  clear(destroyTextures) {
    destroyTextures = destroyTextures !== false;
    if (destroyTextures) {
      for (const i in this.texturePool) {
        const textures = this.texturePool[i];
        if (textures) {
          for (let j = 0; j < textures.length; j++) {
            textures[j].destroy(true);
          }
        }
      }
    }
    this.texturePool = {};
  }
  setScreenSize(size) {
    if (size.width === this._pixelsWidth && size.height === this._pixelsHeight) {
      return;
    }
    this.enableFullScreen = size.width > 0 && size.height > 0;
    for (const i in this.texturePool) {
      if (!(Number(i) < 0)) {
        continue;
      }
      const textures = this.texturePool[i];
      if (textures) {
        for (let j = 0; j < textures.length; j++) {
          textures[j].destroy(true);
        }
      }
      this.texturePool[i] = [];
    }
    this._pixelsWidth = size.width;
    this._pixelsHeight = size.height;
  }
}
RenderTexturePool.SCREEN_KEY = -1;

exports.RenderTexturePool = RenderTexturePool;
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