buffer tests

• test bufferData with ArrayBufferView18ms ‣

  const {gl} = createContext2();
  if (!gl) {
    return;
  }
  const tracker = new MemInfoTracker(gl, 'buffer');
  const buf1 = gl.createBuffer();
  tracker.addObjects(1);
  gl.bindBuffer(gl.ARRAY_BUFFER, buf1);
  const data1 = new Float32Array(25);
  const length1 = 15;
  const size1 = length1 * data1.BYTES_PER_ELEMENT;
  gl.bufferData(gl.ARRAY_BUFFER, data1, gl.STATIC_DRAW, 0, length1);
  tracker.addMemory(size1);
  const data1a = new Uint16Array(37);
  const length1a = 30;
  const size1a = length1a * data1a.BYTES_PER_ELEMENT;
  gl.bufferData(gl.ARRAY_BUFFER, data1a, gl.STATIC_DRAW, 0, length1a);
  tracker.addMemory(size1a - size1);
  const buf2 = gl.createBuffer();
  tracker.addObjects(1);
  gl.bindBuffer(gl.ARRAY_BUFFER, buf2);
  const data2 = new Float32Array(55);
  const length2 = 41;
  const size2 = length2 * data2.BYTES_PER_ELEMENT;
  gl.bufferData(gl.ARRAY_BUFFER, data2, gl.STATIC_DRAW, 0, length2);
  tracker.addMemory(size2);
  gl.deleteBuffer(buf1);
  tracker.deleteObjectAndMemory(size1a);
  gl.deleteBuffer(buf2);
  tracker.deleteObjectAndMemory(size2);