/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/

// This test relies on the surrounding web page defining a variable
// "contextVersion" which indicates what version of WebGL it's running
// on -- 1 for WebGL 1.0, 2 for WebGL 2.0, etc.

"use strict";
description("This test ensures WebGL implementations vertexAttrib can be set and read.");

debug("");
debug("Canvas.getContext");

var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("canvas", undefined, contextVersion);
if (!gl) {
  testFailed("context does not exist");
} else {
  testPassed("context exists");

  debug("");
  debug("Checking gl.vertexAttrib.");

  var numVertexAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
  for (var ii = 0; ii < numVertexAttribs; ++ii) {
    gl.vertexAttrib1fv(ii, [1]);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib1fv(ii, new Float32Array([-1]));
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '-1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib2fv(ii, [1, 2]);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib2fv(ii, new Float32Array([1, -2]));
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '-2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib3fv(ii, [1, 2, 3]);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '3');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib3fv(ii, new Float32Array([1, -2, 3]));
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '-2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '3');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib4fv(ii, [1, 2, 3, 4]);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '3');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '4');

    gl.vertexAttrib4fv(ii, new Float32Array([1, 2, -3, 4]));
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '2');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '-3');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '4');

    gl.vertexAttrib1f(ii, 5);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '5');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib2f(ii, 6, 7);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '6');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '7');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '0');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib3f(ii, 7, 8, 9);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '7');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '8');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '9');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '1');

    gl.vertexAttrib4f(ii, 6, 7, 8, 9);
    shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '6');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '7');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '8');
    shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '9');

    if (contextVersion > 1) {
      gl.vertexAttribI4i(ii, -1, 0, 1, 2);
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Int32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '-1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '2');

      gl.vertexAttribI4ui(ii, 0, 1, 2, 3);
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Uint32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '2');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '3');

      gl.vertexAttribI4iv(ii, [-1, 0, 1, 2]);
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Int32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '-1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '2');

      gl.vertexAttribI4iv(ii, new Int32Array([1, 0, -1, 2]));
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Int32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '-1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '2');

      gl.vertexAttribI4uiv(ii, [0, 1, 2, 3]);
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Uint32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '2');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '3');

      gl.vertexAttribI4uiv(ii, new Uint32Array([0, 2, 1, 3]));
      shouldBeType('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)', 'Uint32Array');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[0]', '0');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[1]', '2');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[2]', '1');
      shouldBe('gl.getVertexAttrib(' + ii + ', gl.CURRENT_VERTEX_ATTRIB)[3]', '3');
    }
  }
  wtu.glErrorShouldBe(gl, gl.NO_ERROR);

  debug("");
  debug("Checking out-of-range vertexAttrib index");
  gl.getVertexAttrib(numVertexAttribs, gl.CURRENT_VERTEX_ATTRIB);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib1fv(numVertexAttribs, [1]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib1fv(numVertexAttribs, new Float32Array([-1]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib2fv(numVertexAttribs, [1, 2]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib2fv(numVertexAttribs, new Float32Array([1, -2]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib3fv(numVertexAttribs, [1, 2, 3]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib3fv(numVertexAttribs, new Float32Array([1, -2, 3]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib4fv(numVertexAttribs, [1, 2, 3, 4]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib4fv(numVertexAttribs, new Float32Array([1, 2, -3, 4]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib1f(numVertexAttribs, 5);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib2f(numVertexAttribs, 6, 7);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib3f(numVertexAttribs, 7, 8, 9);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib4f(numVertexAttribs, 6, 7, 8, 9);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  if (contextVersion > 1) {
    gl.vertexAttribI4i(numVertexAttribs, -1, 0, 1, 2);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4ui(numVertexAttribs, 0, 1, 2, 3);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4iv(numVertexAttribs, [-1, 0, 1, 2]);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4iv(numVertexAttribs, new Int32Array([1, 0, -1, 2]));
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4uiv(numVertexAttribs, [0, 1, 2, 3]);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4uiv(numVertexAttribs, new Uint32Array([0, 2, 1, 3]));
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);
  }

  debug("");
  debug("Checking invalid array lengths");
  numVertexAttribs = numVertexAttribs - 1;
  gl.vertexAttrib1fv(numVertexAttribs, []);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib1fv(numVertexAttribs, new Float32Array([]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib2fv(numVertexAttribs, [1]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib2fv(numVertexAttribs, new Float32Array([1]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib3fv(numVertexAttribs, [1, 2]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib3fv(numVertexAttribs, new Float32Array([1, -2]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib4fv(numVertexAttribs, [1, 2, 3]);
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  gl.vertexAttrib4fv(numVertexAttribs, new Float32Array([1, 2, -3]));
  wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

  if (contextVersion > 1) {
    gl.vertexAttribI4iv(numVertexAttribs, [-1, 0, 1]);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4iv(numVertexAttribs, new Int32Array([1, 0, -1]));
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4uiv(numVertexAttribs, [0, 1, 2]);
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

    gl.vertexAttribI4uiv(numVertexAttribs, new Uint32Array([0, 2, 1]));
    wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);
  }
}

debug("");
var successfullyParsed = true;