| <!DOCTYPE html><!-- webkit-test-runner [ experimental:WebGPUEnabled=true ] --> |
| <meta charset=utf-8> |
| <title>Tests for setSubData and mapReadAsync on a GPUBuffer.</title> |
| <body> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script src="js/webgpu-functions.js"></script> |
| <script> |
| async function runTests() { |
| const device = await getBasicDevice(); |
| |
| // Basic mapReadAsync functionality |
| promise_test(async () => { |
| const buffer = device.createBuffer({ size: 16, usage: GPUBufferUsage.TRANSFER_DST | GPUBufferUsage.MAP_READ }); |
| assert_true(buffer instanceof GPUBuffer, "createBuffer returned a GPUBuffer"); |
| |
| let array = new Float32Array([1, 2, 3, 4]); |
| buffer.setSubData(0, array.buffer); |
| |
| let arrayBuffer = await buffer.mapReadAsync(); |
| assert_true(arrayBuffer instanceof ArrayBuffer, "first mapReadAsync resolved successfully"); |
| |
| const readArray = new Float32Array(arrayBuffer); |
| assert_equals(readArray[3], 4, "successfully map-read value set by setSubData"); |
| |
| buffer.unmap(); |
| |
| buffer.setSubData(4 * 3, array.slice(0, 1).buffer); |
| let arrayBuffer1 = await buffer.mapReadAsync(); |
| const readArray1 = new Float32Array(arrayBuffer1); |
| assert_equals(readArray[3], 1, "successfully setSubData with an offset"); |
| |
| buffer.unmap(); |
| |
| const promise = buffer.mapReadAsync(); // This will eventually reject due to buffer.destroy() |
| |
| buffer.destroy(); |
| |
| await promise.then(() => { |
| assert_unreached("Buffer was destroyed!"); |
| }, () => {}); |
| |
| }, "setSubData, mapReadAsync, unmap, and destroy on a GPUBuffer."); |
| |
| /* Basic validation */ |
| // FIXME: Test invalid combinations of GPUBufferUsage after implementing error handling. |
| |
| promise_test(async () => { |
| const buffer = device.createBuffer({ size: 16, usage: GPUBufferUsage.MAP_WRITE }); |
| |
| await buffer.mapReadAsync().then(() => { |
| assert_unreached("Buffer was not created with MAP_READ!"); |
| }, () => {}); |
| }, "Reject a map read on a buffer not created with MAP_READ usage."); |
| |
| /* Extended unmap/destroy and promise settling testing */ |
| |
| promise_test(async () => { |
| const buffer = device.createBuffer({ size: 16, usage: GPUBufferUsage.MAP_READ }); |
| |
| buffer.mapReadAsync().then(() => { |
| buffer.unmap(); |
| }, () => { |
| assert_unreached(); |
| }); |
| |
| await buffer.mapReadAsync().then(() => { |
| assert_unreached("Map operation was invalid!"); // buffer was still in mapped state during promise creation |
| }, () => {}); |
| }, "Reject a map read on a mapped GPUBuffer."); |
| |
| promise_test(async () => { |
| const buffer = device.createBuffer({ size: 16, usage: GPUBufferUsage.MAP_READ }); |
| |
| const promise = buffer.mapReadAsync(); |
| buffer.unmap(); |
| |
| await promise.then(() => { |
| assert_unreached("Buffer was unmapped!"); // buffer was unmapped, which rejects pending promises |
| },() => {}); |
| }, "Reject a pending map read if GPUBuffer is unmapped."); |
| } |
| |
| runTests(); |
| </script> |
| </body> |
