| /* |
| * Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion |
| * Float32x4List.view( |
| * ByteBuffer buffer, [ |
| * int byteOffset = 0, |
| * int length |
| * ]) |
| * Creates a [Float32x4List] view of the specified region in buffer. |
| * @description Checks that a new instance has the same elements as the |
| * specified region. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Float32x4 pack(v) => new Float32x4.splat(v); |
| |
| packM(x, y, z, w) => new Float32x4(x,y,z,w); |
| |
| equal(obj1, obj2) { |
| var res = obj1.equal(obj2); |
| return res.flagX && res.flagY && res.flagZ && res.flagW; |
| } |
| |
| check(List<Float32x4> list, int offset, int length) { |
| var tmp = new Float32x4List.fromList(list); |
| var byteBuffer = tmp.buffer; |
| var l = new Float32x4List.view(byteBuffer, offset, length); |
| Expect.equals(length, l.length); |
| for (int i = 0; i < l.length; ++i) { |
| Expect.isTrue(equal(tmp[offset ~/ Float32x4List.bytesPerElement + i], |
| l[i])); |
| } |
| } |
| |
| main() { |
| check([], 0, 0); |
| check([ |
| pack(3.4028234663852886e38), pack(1.401298464324817e-45), |
| pack(1.1754943508222875e-38) |
| ], 0, 3); |
| check([pack(1000.0), pack(1000.0), pack(1000.0)], 0, 3); |
| check([ |
| pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0), |
| pack(6.0), pack(7.0), pack(8.0), pack(9.0), pack(10.0), pack(11.0), |
| pack(12.0), pack(13.0), pack(14.0), pack(15.0), pack(16.0), pack(17.0) |
| ], 0, 18); |
| check([ |
| pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0), |
| pack(6.0), pack(7.0), pack(8.0), pack(9.0), pack(10.0), pack(11.0), |
| pack(12.0), pack(13.0), pack(14.0), pack(15.0), pack(16.0), pack(17.0) |
| ], 32, 13); |
| check([ |
| pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0), |
| pack(6.0), pack(7.0), pack(8.0), pack(9.0), pack(10.0), pack(11.0), |
| pack(12.0), pack(13.0), pack(14.0), pack(15.0), pack(16.0), pack(17.0) |
| ], 16*16, 1); |
| } |