| <!DOCTYPE html> |
| <html> |
| <meta charset=utf-8> |
| <meta name="timeout" content="long"> |
| <title>Clamp.</title> |
| <script src="js/test-harness.js"></script> |
| <script src="../js/webgpu-functions.js"></script> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| const whlslTests = {}; |
| const epsilon = 0.0001; |
| |
| whlslTests.vectorClamp = async () => { |
| const program = ` |
| float foo(float a, float b) { |
| float2 x; |
| x[0] = a; |
| x[1] = b; |
| float2 bottom = float2(1, 5); |
| float2 top = float2(10, 7); |
| x = clamp(x, bottom, top); |
| return x.x / x.y; |
| } |
| `; |
| |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(12), makeFloat(20)]), 10 / 7, epsilon); |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(8), makeFloat(6)]), 8 / 6, epsilon); |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(-10), makeFloat(6)]), 1 / 6, epsilon); |
| }; |
| |
| whlslTests.matrixClamp = async () => { |
| const program = ` |
| float foo(float a, float b, float c, float d) { |
| float2x2 x; |
| x[0] = float2(a, b); |
| x[1] = float2(c, d); |
| |
| float2x2 bottom = float2x2(float2(1, 2), float2(3, 4)); |
| float2x2 top = float2x2(float2(10, 11), float2(12, 13)); |
| |
| x = clamp(x, bottom, top); |
| |
| return x[0][0] / 1 + x[0][1] / 2 + x[1][0] / 3 + x[1][1] / 4; |
| } |
| `; |
| |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(2), makeFloat(-1), makeFloat(4), makeFloat(10)]), 2/1 + 2/2 + 4/3 + 10/4, epsilon); |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(100), makeFloat(100), makeFloat(100), makeFloat(100)]), 10/1 + 11/2 + 12/3 + 13/4, epsilon); |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(-100), makeFloat(-100), makeFloat(-100), makeFloat(-100)]), 1/1 + 2/2 + 3/3 + 4/4, epsilon); |
| assert_approx_equals(await callFloatFunction(program, "foo", [makeFloat(NaN), makeFloat(NaN), makeFloat(NaN), makeFloat(NaN)]), 1/1 + 2/2 + 3/3 + 4/4, epsilon); |
| }; |
| |
| runTests(whlslTests); |
| </script> |
| </html> |
