From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- gfx/vr/nsFxrCommandLineHandler.cpp | 139 +++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 gfx/vr/nsFxrCommandLineHandler.cpp (limited to 'gfx/vr/nsFxrCommandLineHandler.cpp') diff --git a/gfx/vr/nsFxrCommandLineHandler.cpp b/gfx/vr/nsFxrCommandLineHandler.cpp new file mode 100644 index 0000000000..126e30ef87 --- /dev/null +++ b/gfx/vr/nsFxrCommandLineHandler.cpp @@ -0,0 +1,139 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +// vim:cindent:tabstop=4:expandtab:shiftwidth=4: +/* 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/. */ + +#ifndef XP_WIN +# error "nsFxrCommandLineHandler currently only supported on Windows" +#endif + +#include "nsFxrCommandLineHandler.h" +#include "FxRWindowManager.h" + +#include "nsICommandLine.h" +#include "nsIWindowWatcher.h" +#include "mozIDOMWindow.h" +#include "nsPIDOMWindow.h" +#include "mozilla/WidgetUtils.h" +#include "nsIWidget.h" +#include "nsServiceManagerUtils.h" +#include "nsString.h" +#include "nsArray.h" +#include "nsCOMPtr.h" +#include "mozilla/StaticPrefs_extensions.h" + +#include +#include "WinUtils.h" + +#include "VRShMem.h" + +NS_IMPL_ISUPPORTS(nsFxrCommandLineHandler, nsICommandLineHandler) + +// nsFxrCommandLineHandler acts in the middle of bootstrapping Firefox +// Reality with desktop Firefox. Details of the processes involved are +// described below: +// +// Host +// (vrhost!CreateVRWindow) Fx Main Fx GPU +// | + + +// VRShMem creates shared + + +// memory in OS + + +// | + + +// Launch firefox.exe + + +// with --fxr + + +// | | + +// Wait for Signal... nsFxrCLH handles param + +// | joins VRShMem + +// | creates new window | +// | sets .hwndFx in VRShMem | +// | | | +// | | After compositor and +// | | swapchain created, +// | | share texture handle to +// | | VRShMem and set signal +// CreateVRWindow returns | | +// to host with relevant | | +// return data from VRShMem | | +// | Fx continues to run | +// | | Fx continues to render +// | | | +// ... ... ... + +NS_IMETHODIMP +nsFxrCommandLineHandler::Handle(nsICommandLine* aCmdLine) { + bool handleFlagRetVal = false; + nsresult result = aCmdLine->HandleFlag(u"fxr"_ns, false, &handleFlagRetVal); + if (result == NS_OK && handleFlagRetVal) { + if (XRE_IsParentProcess() && !XRE_IsE10sParentProcess()) { + MOZ_CRASH("--fxr not supported without e10s"); + } + + MOZ_ASSERT(mozilla::StaticPrefs::extensions_webextensions_remote(), + "Remote extensions are the only supported configuration on " + "desktop platforms"); + + aCmdLine->SetPreventDefault(true); + + nsCOMPtr wwatch = + do_GetService(NS_WINDOWWATCHER_CONTRACTID); + NS_ENSURE_TRUE(wwatch, NS_ERROR_FAILURE); + + nsCOMPtr newWindow; + result = wwatch->OpenWindow( + nullptr, // aParent + "chrome://fxr/content/fxrui.html"_ns, // aUrl + "_blank"_ns, // aName + "chrome,dialog=no,all,private,alwaysontop"_ns, // aFeatures + nullptr, // aArguments + getter_AddRefs(newWindow)); + + MOZ_ASSERT(result == NS_OK); + + nsPIDOMWindowOuter* newWindowOuter = nsPIDOMWindowOuter::From(newWindow); + FxRWindowManager::GetInstance()->AddWindow(newWindowOuter); + + // Set ForceFullScreenInWidget so that full-screen (in an FxR window) + // fills only the window and thus the same texture that will already be + // shared with the host. Also, this is set here per-window because + // changing the related pref would impact all browser window instances. + newWindowOuter->ForceFullScreenInWidget(); + + // Send the window's HWND to vrhost through VRShMem + mozilla::gfx::VRShMem shmem(nullptr, true /*aRequiresMutex*/); + if (shmem.JoinShMem()) { + mozilla::gfx::VRWindowState windowState = {0}; + shmem.PullWindowState(windowState); + + nsCOMPtr newWidget = + mozilla::widget::WidgetUtils::DOMWindowToWidget(newWindowOuter); + HWND hwndWidget = (HWND)newWidget->GetNativeData(NS_NATIVE_WINDOW); + + // The CLH should populate these members first + MOZ_ASSERT(windowState.hwndFx == 0); + MOZ_ASSERT(windowState.textureFx == nullptr); + windowState.hwndFx = (uint64_t)hwndWidget; + + shmem.PushWindowState(windowState); + shmem.LeaveShMem(); + + // The GPU process will notify the host that window creation is complete + // after output data is set in VRShMem + newWidget->RequestFxrOutput(); + } else { +#ifndef NIGHTLY_BUILD + MOZ_CRASH("failed to start with --fxr"); +#endif + } + } + + return NS_OK; +} + +NS_IMETHODIMP +nsFxrCommandLineHandler::GetHelpInfo(nsACString& aResult) { + aResult.AssignLiteral( + " --fxr Creates a new window for Firefox Reality on Desktop when " + "available\n"); + return NS_OK; +} -- cgit v1.2.3