axis3d/framebuffer/framebuffer.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.FrameBuffer = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _utils = require('../utils');

var _scope = require('../scope');

var _core = require('../core');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var FrameBuffer = exports.FrameBuffer = function (_Component) {
  _inherits(FrameBuffer, _Component);

  _createClass(FrameBuffer, null, [{
    key: 'defaults',
    value: function defaults() {
      return { depth: true };
    }
  }]);

  function FrameBuffer(ctx) {
    var initialState = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, FrameBuffer);

    (0, _utils.assignDefaults)(initialState, FrameBuffer.defaults());
    var getContext = new _scope.ScopedContext(ctx);
    var fbo = ctx.regl.framebuffer(_extends({}, initialState));
    var framebuffer = ctx.regl({ framebuffer: fbo });
    var previousWidth = 0;
    var previousHeight = 0;
    return _possibleConstructorReturn(this, (FrameBuffer.__proto__ || Object.getPrototypeOf(FrameBuffer)).call(this, ctx, initialState, new _scope.ScopedContext(ctx, {
      framebufferPointer: function framebufferPointer() {
        return framebuffer;
      }
    }), function (state, block) {
      getContext(function (_ref) {
        var texturePointer = _ref.texturePointer,
            viewportWidth = _ref.viewportWidth,
            viewportHeight = _ref.viewportHeight;

        var width = state.width || viewportWidth;
        var height = state.height || viewportHeight;
        if (texturePointer) {
          texturePointer(_extends({
            width: width, height: height,
            wrap: 'clamp', min: 'linear', mag: 'linear' }, state.texture));
          fbo({ color: texturePointer });
        }

        if (previousWidth != width || previousHeight != height) {
          previousWidth = width;
          previousHeight = height;
          fbo.resize(width, height);
        }

        framebuffer(block);
      });
    }));
  }

  return FrameBuffer;
}(_core.Component);
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