gecko-dev/gfx/ipc/FileHandleWrapper.cpp
sotaro 7d06300567 Bug 1861605 - Use IDXGIResource1::CreateSharedHandle() instead of IDXGIResource::GetSharedHandle() r=gfx-reviewers,lsalzman
gecko uses IDXGIResource::GetSharedHandle(). But it is recommend not to use anymore to retrieve the handle to a shared resource.
IDXGIResource1::CreateSharedHandle() with D3D11_RESOURCE_MISC_SHARED_NTHANDLE flag should be used instead of the GetSharedHandle().

The CreateSharedHandle() could be called only once for a shared resource. Later calls fail.

HANDLEs of ID3D11Texture2D are replaced by gfx::FileHandleWrappers.

Differential Revision: https://phabricator.services.mozilla.com/D192173
2023-12-19 09:23:21 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "FileHandleWrapper.h"
#include "mozilla/ipc/FileDescriptor.h"
namespace mozilla::gfx {
FileHandleWrapper::FileHandleWrapper(mozilla::UniqueFileHandle&& aHandle)
: mHandle(std::move(aHandle)) {}
FileHandleWrapper::~FileHandleWrapper() {}
mozilla::detail::FileHandleType FileHandleWrapper::GetHandle() {
return mHandle.get();
}
mozilla::UniqueFileHandle FileHandleWrapper::ClonePlatformHandle() {
auto handle = ipc::FileDescriptor(GetHandle());
return handle.TakePlatformHandle();
}
} // namespace mozilla::gfx