@pixi/core/lib/framebuffer/Framebuffer.js

Core PixiJS

'use strict';

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

var constants = require('@pixi/constants');
var runner = require('@pixi/runner');
var BaseTexture = require('../textures/BaseTexture.js');
var DepthResource = require('../textures/resources/DepthResource.js');

class Framebuffer {
  constructor(width, height) {
    this.width = Math.round(width || 100);
    this.height = Math.round(height || 100);
    this.stencil = false;
    this.depth = false;
    this.dirtyId = 0;
    this.dirtyFormat = 0;
    this.dirtySize = 0;
    this.depthTexture = null;
    this.colorTextures = [];
    this.glFramebuffers = {};
    this.disposeRunner = new runner.Runner("disposeFramebuffer");
    this.multisample = constants.MSAA_QUALITY.NONE;
  }
  get colorTexture() {
    return this.colorTextures[0];
  }
  addColorTexture(index = 0, texture) {
    this.colorTextures[index] = texture || new BaseTexture.BaseTexture(null, {
      scaleMode: constants.SCALE_MODES.NEAREST,
      resolution: 1,
      mipmap: constants.MIPMAP_MODES.OFF,
      width: this.width,
      height: this.height
    });
    this.dirtyId++;
    this.dirtyFormat++;
    return this;
  }
  addDepthTexture(texture) {
    this.depthTexture = texture || new BaseTexture.BaseTexture(new DepthResource.DepthResource(null, { width: this.width, height: this.height }), {
      scaleMode: constants.SCALE_MODES.NEAREST,
      resolution: 1,
      width: this.width,
      height: this.height,
      mipmap: constants.MIPMAP_MODES.OFF,
      format: constants.FORMATS.DEPTH_COMPONENT,
      type: constants.TYPES.UNSIGNED_SHORT
    });
    this.dirtyId++;
    this.dirtyFormat++;
    return this;
  }
  enableDepth() {
    this.depth = true;
    this.dirtyId++;
    this.dirtyFormat++;
    return this;
  }
  enableStencil() {
    this.stencil = true;
    this.dirtyId++;
    this.dirtyFormat++;
    return this;
  }
  resize(width, height) {
    width = Math.round(width);
    height = Math.round(height);
    if (width === this.width && height === this.height)
      return;
    this.width = width;
    this.height = height;
    this.dirtyId++;
    this.dirtySize++;
    for (let i = 0; i < this.colorTextures.length; i++) {
      const texture = this.colorTextures[i];
      const resolution = texture.resolution;
      texture.setSize(width / resolution, height / resolution);
    }
    if (this.depthTexture) {
      const resolution = this.depthTexture.resolution;
      this.depthTexture.setSize(width / resolution, height / resolution);
    }
  }
  dispose() {
    this.disposeRunner.emit(this, false);
  }
  destroyDepthTexture() {
    if (this.depthTexture) {
      this.depthTexture.destroy();
      this.depthTexture = null;
      ++this.dirtyId;
      ++this.dirtyFormat;
    }
  }
}

exports.Framebuffer = Framebuffer;
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