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/*=========================================================================
Program: Visualization Toolkit
Module: XrConnectionExtensions.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
//*********************************************************
// Copyright (c) Microsoft. All rights reserved.
//
// Apache 2.0 License
//
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
//
//*********************************************************
/**
* @file XrConnectionExtensions.h
*
* @brief Load OpenXR extensions required for remote connection.
*
* Provides the ConnectionExtensionDispatchTable struct to load remoting
* extensions at runtime for the current XrInstance.
* The OpenXR header corresponding to the expected connection strategy must be
* included prior to including this header to provide the required definitions.
* For instance, including <openxr_msft_holographic_remoting.h> defines
* XR_MSFT_holographic_remoting, which enables the OpenXR Remoting extension in
* this file.
*
* File adapted from:
* https://github.com/microsoft/MixedReality-HolographicRemoting-Samples/blob/f6b55479646bda3bffea58bb3e9c9d9c5e0ab177/remote_openxr/desktop/XrUtility/XrExtensions.h
*
* @sa
* vtkOpenXRManagerRemoteConnection XrExtensions.h XrGraphicsExtensions.h
*/
#ifndef XrConnectionExtensions_h
#define XrConnectionExtensions_h
#if XR_MSFT_holographic_remoting
#define FOR_EACH_HAR_EXPERIMENTAL_EXTENSION_FUNCTION(_) \
_(xrRemotingSetContextPropertiesMSFT) \
_(xrRemotingConnectMSFT) \
_(xrRemotingListenMSFT) \
_(xrRemotingDisconnectMSFT) \
_(xrRemotingGetConnectionStateMSFT) \
_(xrRemotingSetSecureConnectionClientCallbacksMSFT) \
_(xrRemotingSetSecureConnectionServerCallbacksMSFT) \
_(xrCreateRemotingDataChannelMSFT) \
_(xrDestroyRemotingDataChannelMSFT) \
_(xrGetRemotingDataChannelStateMSFT) \
_(xrSendRemotingDataMSFT) \
_(xrRetrieveRemotingDataMSFT)
#else
#define FOR_EACH_HAR_EXPERIMENTAL_EXTENSION_FUNCTION(_)
#endif
#define FOR_EACH_EXTENSION_FUNCTION(_) FOR_EACH_HAR_EXPERIMENTAL_EXTENSION_FUNCTION(_)
#define GET_INSTANCE_PROC_ADDRESS(name) \
(void)xrGetInstanceProcAddr( \
instance, #name, reinterpret_cast<PFN_xrVoidFunction*>(const_cast<PFN_##name*>(&name)));
#define DEFINE_PROC_MEMBER(name) PFN_##name name{ nullptr };
namespace xr
{
VTK_ABI_NAMESPACE_BEGIN
struct ConnectionExtensionDispatchTable
{
FOR_EACH_EXTENSION_FUNCTION(DEFINE_PROC_MEMBER);
ConnectionExtensionDispatchTable() = default;
void PopulateDispatchTable(XrInstance instance)
{
FOR_EACH_EXTENSION_FUNCTION(GET_INSTANCE_PROC_ADDRESS);
}
};
VTK_ABI_NAMESPACE_END
} // namespace xr
#undef DEFINE_PROC_MEMBER
#undef GET_INSTANCE_PROC_ADDRESS
#undef FOR_EACH_EXTENSION_FUNCTION
#endif
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