1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
7 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/common.js');
8 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/mat2d.js');
9 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/mat4.js');
10 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec2.js');
11 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec3.js');
12 base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec4.js');
14 base.exportTo('base', function() {
15 var tmp_vec2 = vec2.create();
16 var tmp_vec2b = vec2.create();
17 var tmp_vec4 = vec4.create();
18 var tmp_mat2d = mat2d.create();
20 vec2.createFromArray = function(arr) {
22 throw new Error('Should be length 2');
23 var v = vec2.create();
24 vec2.set(v, arr[0], arr[1]);
28 vec2.createXY = function(x, y) {
29 var v = vec2.create();
34 vec2.toString = function(a) {
35 return '[' + a[0] + ', ' + a[1] + ']';
38 vec2.addTwoScaledUnitVectors = function(out, u1, scale1, u2, scale2) {
39 // out = u1 * scale1 + u2 * scale2
40 vec2.scale(tmp_vec2, u1, scale1);
41 vec2.scale(tmp_vec2b, u2, scale2);
42 vec2.add(out, tmp_vec2, tmp_vec2b);
45 vec3.createXYZ = function(x, y, z) {
46 var v = vec3.create();
51 vec3.toString = function(a) {
52 return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
55 mat2d.translateXY = function(out, x, y) {
56 vec2.set(tmp_vec2, x, y);
57 mat2d.translate(out, out, tmp_vec2);
60 mat2d.scaleXY = function(out, x, y) {
61 vec2.set(tmp_vec2, x, y);
62 mat2d.scale(out, out, tmp_vec2);
65 vec4.unitize = function(out, a) {
73 vec2.copyFromVec4 = function(out, a) {
74 vec4.unitize(tmp_vec4, a);
75 vec2.copy(out, tmp_vec4);