@antv/g-webgpu-raytracer/lib/buffer/Buffer.js

A simple ray tracer implemented with WebGPU

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Buffer = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var Buffer = /*#__PURE__*/function () {
  function Buffer(bindingPoint, length) {
    (0, _classCallCheck2.default)(this, Buffer);
    this.cursor = 0;
    this.buffer = void 0;
    this.bindingPoint = void 0;
    this.i32 = void 0;
    this.f32 = void 0;
    // we only use Int32 and Float32, so 4 bytes for each item
    this.buffer = new ArrayBuffer(length * 4);
    this.i32 = new Int32Array(this.buffer);
    this.f32 = new Float32Array(this.buffer);
    this.bindingPoint = bindingPoint;
  } // createWebGLBuffer(gl: WebGL2Context) {
  //   const id = gl.createBuffer();
  //   gl.bindBuffer(gl.SHADER_STORAGE_BUFFER, id);
  //   // Important! Tell the buffer to bind to a specific binding point
  //   gl.bindBufferBase(gl.SHADER_STORAGE_BUFFER, this.bindingPoint, id);
  //   return {
  //     name,
  //     buffer: id as WebGLBuffer,
  //     length: 0,
  //   };
  // }


  (0, _createClass2.default)(Buffer, [{
    key: "appendF",
    value: function appendF(n) {
      this.f32[this.cursor++] = n;
    }
  }, {
    key: "appendI",
    value: function appendI(n) {
      this.i32[this.cursor++] = n;
    }
  }, {
    key: "pad",
    value: function pad(n) {
      this.cursor += n;
    }
  }]);
  return Buffer;
}();

exports.Buffer = Buffer;
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