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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
'use strict';
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/common.js');
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/mat2d.js');
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/mat4.js');
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec2.js');
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec3.js');
base.requireRawScript('../third_party/gl-matrix/src/gl-matrix/vec4.js');
base.exportTo('base', function() {
var tmp_vec2 = vec2.create();
var tmp_vec2b = vec2.create();
var tmp_vec4 = vec4.create();
var tmp_mat2d = mat2d.create();
vec2.createFromArray = function(arr) {
if (arr.length != 2)
throw new Error('Should be length 2');
var v = vec2.create();
vec2.set(v, arr[0], arr[1]);
return v;
};
vec2.createXY = function(x, y) {
var v = vec2.create();
vec2.set(v, x, y);
return v;
};
vec2.toString = function(a) {
return '[' + a[0] + ', ' + a[1] + ']';
};
vec2.addTwoScaledUnitVectors = function(out, u1, scale1, u2, scale2) {
// out = u1 * scale1 + u2 * scale2
vec2.scale(tmp_vec2, u1, scale1);
vec2.scale(tmp_vec2b, u2, scale2);
vec2.add(out, tmp_vec2, tmp_vec2b);
}
vec3.createXYZ = function(x, y, z) {
var v = vec3.create();
vec3.set(v, x, y, z);
return v;
};
vec3.toString = function(a) {
return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
}
mat2d.translateXY = function(out, x, y) {
vec2.set(tmp_vec2, x, y);
mat2d.translate(out, out, tmp_vec2);
}
mat2d.scaleXY = function(out, x, y) {
vec2.set(tmp_vec2, x, y);
mat2d.scale(out, out, tmp_vec2);
}
vec4.unitize = function(out, a) {
out[0] = a[0] / a[3];
out[1] = a[1] / a[3];
out[2] = a[2] / a[3];
out[3] = 1;
return out;
}
vec2.copyFromVec4 = function(out, a) {
vec4.unitize(tmp_vec4, a);
vec2.copy(out, tmp_vec4);
}
return {};
});
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