LayoutTests/ipc/create-image-buffer-crash.html

<!-- webkit-test-runner [ IPCTestingAPIEnabled=true ] -->
<p>This test passes if WebKit does not crash.</p>
<script src="../resources/ipc.js"></script>
<script>
  if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
  }

  window.setTimeout(async () => {
    if (!window.IPC)
      return window.testRunner?.notifyDone();

    const { CoreIPC } = await import('./coreipc.js');

    const renderingBackendIdentifier = randomIPCID();
    const connection = CoreIPC.newStreamConnection();
    CoreIPC.GPU.GPUConnectionToWebProcess.CreateRenderingBackend(0, { renderingBackendIdentifier: renderingBackendIdentifier, connectionHandle: connection });
    const remoteBackend = connection.newInterface("RemoteRenderingBackend", renderingBackendIdentifier);

    const didInitializeReply = connection.connection.waitForMessage(renderingBackendIdentifier, IPC.messages.RemoteRenderingBackendProxy_DidInitialize.name, 1)
    connection.connection.setSemaphores(didInitializeReply[0].value, didInitializeReply[1].value);

    // The pixel formats to test
    const pixelFormats = [
      0, // BGRX8
      1, // BGRA8
      2, // RGB10
      3, // RGB10A8
      4  // RGBA16F (if HDR_SUPPORT is enabled)
    ];

    // Iterate through each pixel format and create image buffer
    for (let format of pixelFormats) {
      try {
        remoteBackend.CreateImageBuffer({
          logicalSize: { width: 69, height: 67 },
          renderingMode: 1,
          renderingPurpose: 2,
          resolutionScale: 96,
          colorSpace: {
            serializableColorSpace: {
              alias: {
                m_cgColorSpace: {
                  alias: {
                    variantType: 'RetainPtr<CFStringRef>',
                    variant: 'A'
                  }
                }
              }
            }
          },
          bufferFormat: { pixelFormat: format, useLosslessCompression: 0 },
          identifier: randomIPCID(),
          contextIdentifier: randomIPCID()
        });
      } catch {}
    }

    connection.connection.invalidate();

    window.testRunner?.notifyDone();
  }, 10);
</script>