@pixi/core/lib/textures/BaseTexture.js

Core PixiJS

"use strict";
var constants = require("@pixi/constants"), settings = require("@pixi/settings"), utils = require("@pixi/utils"), autoDetectResource = require("./resources/autoDetectResource.js"), BufferResource = require("./resources/BufferResource.js"), Resource = require("./resources/Resource.js");
const defaultBufferOptions = {
  scaleMode: constants.SCALE_MODES.NEAREST,
  alphaMode: constants.ALPHA_MODES.NPM
}, _BaseTexture = class _BaseTexture2 extends utils.EventEmitter {
  /**
   * @param {PIXI.Resource|PIXI.ImageSource|string} [resource=null] -
   *        The current resource to use, for things that aren't Resource objects, will be converted
   *        into a Resource.
   * @param options - Collection of options, default options inherited from {@link PIXI.BaseTexture.defaultOptions}.
   * @param {PIXI.MIPMAP_MODES} [options.mipmap] - If mipmapping is enabled for texture
   * @param {number} [options.anisotropicLevel] - Anisotropic filtering level of texture
   * @param {PIXI.WRAP_MODES} [options.wrapMode] - Wrap mode for textures
   * @param {PIXI.SCALE_MODES} [options.scaleMode] - Default scale mode, linear, nearest
   * @param {PIXI.FORMATS} [options.format] - GL format type
   * @param {PIXI.TYPES} [options.type] - GL data type
   * @param {PIXI.TARGETS} [options.target] - GL texture target
   * @param {PIXI.ALPHA_MODES} [options.alphaMode] - Pre multiply the image alpha
   * @param {number} [options.width=0] - Width of the texture
   * @param {number} [options.height=0] - Height of the texture
   * @param {number} [options.resolution=PIXI.settings.RESOLUTION] - Resolution of the base texture
   * @param {object} [options.resourceOptions] - Optional resource options,
   *        see {@link PIXI.autoDetectResource autoDetectResource}
   */
  constructor(resource = null, options = null) {
    super(), options = Object.assign({}, _BaseTexture2.defaultOptions, options);
    const {
      alphaMode,
      mipmap,
      anisotropicLevel,
      scaleMode,
      width,
      height,
      wrapMode,
      format,
      type,
      target,
      resolution,
      resourceOptions
    } = options;
    resource && !(resource instanceof Resource.Resource) && (resource = autoDetectResource.autoDetectResource(resource, resourceOptions), resource.internal = !0), this.resolution = resolution || settings.settings.RESOLUTION, this.width = Math.round((width || 0) * this.resolution) / this.resolution, this.height = Math.round((height || 0) * this.resolution) / this.resolution, this._mipmap = mipmap, this.anisotropicLevel = anisotropicLevel, this._wrapMode = wrapMode, this._scaleMode = scaleMode, this.format = format, this.type = type, this.target = target, this.alphaMode = alphaMode, this.uid = utils.uid(), this.touched = 0, this.isPowerOfTwo = !1, this._refreshPOT(), this._glTextures = {}, this.dirtyId = 0, this.dirtyStyleId = 0, this.cacheId = null, this.valid = width > 0 && height > 0, this.textureCacheIds = [], this.destroyed = !1, this.resource = null, this._batchEnabled = 0, this._batchLocation = 0, this.parentTextureArray = null, this.setResource(resource);
  }
  /**
   * Pixel width of the source of this texture
   * @readonly
   */
  get realWidth() {
    return Math.round(this.width * this.resolution);
  }
  /**
   * Pixel height of the source of this texture
   * @readonly
   */
  get realHeight() {
    return Math.round(this.height * this.resolution);
  }
  /**
   * Mipmap mode of the texture, affects downscaled images
   * @default PIXI.MIPMAP_MODES.POW2
   */
  get mipmap() {
    return this._mipmap;
  }
  set mipmap(value) {
    this._mipmap !== value && (this._mipmap = value, this.dirtyStyleId++);
  }
  /**
   * The scale mode to apply when scaling this texture
   * @default PIXI.SCALE_MODES.LINEAR
   */
  get scaleMode() {
    return this._scaleMode;
  }
  set scaleMode(value) {
    this._scaleMode !== value && (this._scaleMode = value, this.dirtyStyleId++);
  }
  /**
   * How the texture wraps
   * @default PIXI.WRAP_MODES.CLAMP
   */
  get wrapMode() {
    return this._wrapMode;
  }
  set wrapMode(value) {
    this._wrapMode !== value && (this._wrapMode = value, this.dirtyStyleId++);
  }
  /**
   * Changes style options of BaseTexture
   * @param scaleMode - Pixi scalemode
   * @param mipmap - enable mipmaps
   * @returns - this
   */
  setStyle(scaleMode, mipmap) {
    let dirty;
    return scaleMode !== void 0 && scaleMode !== this.scaleMode && (this.scaleMode = scaleMode, dirty = !0), mipmap !== void 0 && mipmap !== this.mipmap && (this.mipmap = mipmap, dirty = !0), dirty && this.dirtyStyleId++, this;
  }
  /**
   * Changes w/h/resolution. Texture becomes valid if width and height are greater than zero.
   * @param desiredWidth - Desired visual width
   * @param desiredHeight - Desired visual height
   * @param resolution - Optionally set resolution
   * @returns - this
   */
  setSize(desiredWidth, desiredHeight, resolution) {
    return resolution = resolution || this.resolution, this.setRealSize(desiredWidth * resolution, desiredHeight * resolution, resolution);
  }
  /**
   * Sets real size of baseTexture, preserves current resolution.
   * @param realWidth - Full rendered width
   * @param realHeight - Full rendered height
   * @param resolution - Optionally set resolution
   * @returns - this
   */
  setRealSize(realWidth, realHeight, resolution) {
    return this.resolution = resolution || this.resolution, this.width = Math.round(realWidth) / this.resolution, this.height = Math.round(realHeight) / this.resolution, this._refreshPOT(), this.update(), this;
  }
  /**
   * Refresh check for isPowerOfTwo texture based on size
   * @private
   */
  _refreshPOT() {
    this.isPowerOfTwo = utils.isPow2(this.realWidth) && utils.isPow2(this.realHeight);
  }
  /**
   * Changes resolution
   * @param resolution - res
   * @returns - this
   */
  setResolution(resolution) {
    const oldResolution = this.resolution;
    return oldResolution === resolution ? this : (this.resolution = resolution, this.valid && (this.width = Math.round(this.width * oldResolution) / resolution, this.height = Math.round(this.height * oldResolution) / resolution, this.emit("update", this)), this._refreshPOT(), this);
  }
  /**
   * Sets the resource if it wasn't set. Throws error if resource already present
   * @param resource - that is managing this BaseTexture
   * @returns - this
   */
  setResource(resource) {
    if (this.resource === resource)
      return this;
    if (this.resource)
      throw new Error("Resource can be set only once");
    return resource.bind(this), this.resource = resource, this;
  }
  /** Invalidates the object. Texture becomes valid if width and height are greater than zero. */
  update() {
    this.valid ? (this.dirtyId++, this.dirtyStyleId++, this.emit("update", this)) : this.width > 0 && this.height > 0 && (this.valid = !0, this.emit("loaded", this), this.emit("update", this));
  }
  /**
   * Handle errors with resources.
   * @private
   * @param event - Error event emitted.
   */
  onError(event) {
    this.emit("error", this, event);
  }
  /**
   * Destroys this base texture.
   * The method stops if resource doesn't want this texture to be destroyed.
   * Removes texture from all caches.
   * @fires PIXI.BaseTexture#destroyed
   */
  destroy() {
    this.resource && (this.resource.unbind(this), this.resource.internal && this.resource.destroy(), this.resource = null), this.cacheId && (delete utils.BaseTextureCache[this.cacheId], delete utils.TextureCache[this.cacheId], this.cacheId = null), this.valid = !1, this.dispose(), _BaseTexture2.removeFromCache(this), this.textureCacheIds = null, this.destroyed = !0, this.emit("destroyed", this), this.removeAllListeners();
  }
  /**
   * Frees the texture from WebGL memory without destroying this texture object.
   * This means you can still use the texture later which will upload it to GPU
   * memory again.
   * @fires PIXI.BaseTexture#dispose
   */
  dispose() {
    this.emit("dispose", this);
  }
  /** Utility function for BaseTexture|Texture cast. */
  castToBaseTexture() {
    return this;
  }
  /**
   * Helper function that creates a base texture based on the source you provide.
   * The source can be - image url, image element, canvas element. If the
   * source is an image url or an image element and not in the base texture
   * cache, it will be created and loaded.
   * @static
   * @param {PIXI.ImageSource|string|string[]} source - The
   *        source to create base texture from.
   * @param options - See {@link PIXI.BaseTexture}'s constructor for options.
   * @param {string} [options.pixiIdPrefix=pixiid] - If a source has no id, this is the prefix of the generated id
   * @param {boolean} [strict] - Enforce strict-mode, see {@link PIXI.settings.STRICT_TEXTURE_CACHE}.
   * @returns {PIXI.BaseTexture} The new base texture.
   */
  static from(source, options, strict = settings.settings.STRICT_TEXTURE_CACHE) {
    const isFrame = typeof source == "string";
    let cacheId = null;
    if (isFrame)
      cacheId = source;
    else {
      if (!source._pixiId) {
        const prefix = options?.pixiIdPrefix || "pixiid";
        source._pixiId = `${prefix}_${utils.uid()}`;
      }
      cacheId = source._pixiId;
    }
    let baseTexture = utils.BaseTextureCache[cacheId];
    if (isFrame && strict && !baseTexture)
      throw new Error(`The cacheId "${cacheId}" does not exist in BaseTextureCache.`);
    return baseTexture || (baseTexture = new _BaseTexture2(source, options), baseTexture.cacheId = cacheId, _BaseTexture2.addToCache(baseTexture, cacheId)), baseTexture;
  }
  /**
   * Create a new Texture with a BufferResource from a typed array.
   * @param buffer - The optional array to use. If no data is provided, a new Float32Array is created.
   * @param width - Width of the resource
   * @param height - Height of the resource
   * @param options - See {@link PIXI.BaseTexture}'s constructor for options.
   *        Default properties are different from the constructor's defaults.
   * @param {PIXI.FORMATS} [options.format] - The format is not given, the type is inferred from the
   *        type of the buffer: `RGBA` if Float32Array, Int8Array, Uint8Array, or Uint8ClampedArray,
   *        otherwise `RGBA_INTEGER`.
   * @param {PIXI.TYPES} [options.type] - The type is not given, the type is inferred from the
   *        type of the buffer. Maps Float32Array to `FLOAT`, Int32Array to `INT`, Uint32Array to
   *        `UNSIGNED_INT`, Int16Array to `SHORT`, Uint16Array to `UNSIGNED_SHORT`, Int8Array to `BYTE`,
   *        Uint8Array/Uint8ClampedArray to `UNSIGNED_BYTE`.
   * @param {PIXI.ALPHA_MODES} [options.alphaMode=PIXI.ALPHA_MODES.NPM]
   * @param {PIXI.SCALE_MODES} [options.scaleMode=PIXI.SCALE_MODES.NEAREST]
   * @returns - The resulting new BaseTexture
   */
  static fromBuffer(buffer, width, height, options) {
    buffer = buffer || new Float32Array(width * height * 4);
    const resource = new BufferResource.BufferResource(buffer, { width, height, ...options?.resourceOptions });
    let format, type;
    return buffer instanceof Float32Array ? (format = constants.FORMATS.RGBA, type = constants.TYPES.FLOAT) : buffer instanceof Int32Array ? (format = constants.FORMATS.RGBA_INTEGER, type = constants.TYPES.INT) : buffer instanceof Uint32Array ? (format = constants.FORMATS.RGBA_INTEGER, type = constants.TYPES.UNSIGNED_INT) : buffer instanceof Int16Array ? (format = constants.FORMATS.RGBA_INTEGER, type = constants.TYPES.SHORT) : buffer instanceof Uint16Array ? (format = constants.FORMATS.RGBA_INTEGER, type = constants.TYPES.UNSIGNED_SHORT) : buffer instanceof Int8Array ? (format = constants.FORMATS.RGBA, type = constants.TYPES.BYTE) : (format = constants.FORMATS.RGBA, type = constants.TYPES.UNSIGNED_BYTE), resource.internal = !0, new _BaseTexture2(resource, Object.assign({}, defaultBufferOptions, { type, format }, options));
  }
  /**
   * Adds a BaseTexture to the global BaseTextureCache. This cache is shared across the whole PIXI object.
   * @param {PIXI.BaseTexture} baseTexture - The BaseTexture to add to the cache.
   * @param {string} id - The id that the BaseTexture will be stored against.
   */
  static addToCache(baseTexture, id) {
    id && (baseTexture.textureCacheIds.includes(id) || baseTexture.textureCacheIds.push(id), utils.BaseTextureCache[id] && utils.BaseTextureCache[id] !== baseTexture && console.warn(`BaseTexture added to the cache with an id [${id}] that already had an entry`), utils.BaseTextureCache[id] = baseTexture);
  }
  /**
   * Remove a BaseTexture from the global BaseTextureCache.
   * @param {string|PIXI.BaseTexture} baseTexture - id of a BaseTexture to be removed, or a BaseTexture instance itself.
   * @returns {PIXI.BaseTexture|null} The BaseTexture that was removed.
   */
  static removeFromCache(baseTexture) {
    if (typeof baseTexture == "string") {
      const baseTextureFromCache = utils.BaseTextureCache[baseTexture];
      if (baseTextureFromCache) {
        const index = baseTextureFromCache.textureCacheIds.indexOf(baseTexture);
        return index > -1 && baseTextureFromCache.textureCacheIds.splice(index, 1), delete utils.BaseTextureCache[baseTexture], baseTextureFromCache;
      }
    } else if (baseTexture?.textureCacheIds) {
      for (let i = 0; i < baseTexture.textureCacheIds.length; ++i)
        delete utils.BaseTextureCache[baseTexture.textureCacheIds[i]];
      return baseTexture.textureCacheIds.length = 0, baseTexture;
    }
    return null;
  }
};
_BaseTexture.defaultOptions = {
  /**
   * If mipmapping is enabled for texture.
   * @type {PIXI.MIPMAP_MODES}
   * @default PIXI.MIPMAP_MODES.POW2
   */
  mipmap: constants.MIPMAP_MODES.POW2,
  /** Anisotropic filtering level of texture */
  anisotropicLevel: 0,
  /**
   * Default scale mode, linear, nearest.
   * @type {PIXI.SCALE_MODES}
   * @default PIXI.SCALE_MODES.LINEAR
   */
  scaleMode: constants.SCALE_MODES.LINEAR,
  /**
   * Wrap mode for textures.
   * @type {PIXI.WRAP_MODES}
   * @default PIXI.WRAP_MODES.CLAMP
   */
  wrapMode: constants.WRAP_MODES.CLAMP,
  /**
   * Pre multiply the image alpha
   * @type {PIXI.ALPHA_MODES}
   * @default PIXI.ALPHA_MODES.UNPACK
   */
  alphaMode: constants.ALPHA_MODES.UNPACK,
  /**
   * GL texture target
   * @type {PIXI.TARGETS}
   * @default PIXI.TARGETS.TEXTURE_2D
   */
  target: constants.TARGETS.TEXTURE_2D,
  /**
   * GL format type
   * @type {PIXI.FORMATS}
   * @default PIXI.FORMATS.RGBA
   */
  format: constants.FORMATS.RGBA,
  /**
   * GL data type
   * @type {PIXI.TYPES}
   * @default PIXI.TYPES.UNSIGNED_BYTE
   */
  type: constants.TYPES.UNSIGNED_BYTE
}, /** Global number of the texture batch, used by multi-texture renderers. */
_BaseTexture._globalBatch = 0;
let BaseTexture = _BaseTexture;
exports.BaseTexture = BaseTexture;
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