forked from mirrors/gecko-dev
133 lines
3.8 KiB
C++
133 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WindowSurfaceProvider.h"
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#include "gfxPlatformGtk.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/layers/LayersTypes.h"
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#include "nsWindow.h"
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#ifdef MOZ_WAYLAND
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# include "mozilla/StaticPrefs_widget.h"
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# include "WindowSurfaceWaylandMultiBuffer.h"
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#endif
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#ifdef MOZ_X11
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# include "mozilla/X11Util.h"
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# include "WindowSurfaceX11Image.h"
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# include "WindowSurfaceX11SHM.h"
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#endif
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#undef LOG
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#ifdef MOZ_LOGGING
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# include "mozilla/Logging.h"
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# include "nsTArray.h"
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# include "Units.h"
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extern mozilla::LazyLogModule gWidgetLog;
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# define LOG(args) MOZ_LOG(gWidgetLog, mozilla::LogLevel::Debug, args)
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#else
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# define LOG(args)
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#endif /* MOZ_LOGGING */
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namespace mozilla {
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namespace widget {
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using namespace mozilla::layers;
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WindowSurfaceProvider::WindowSurfaceProvider()
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: mWindowSurface(nullptr)
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#ifdef MOZ_WAYLAND
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,
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mWidget(nullptr)
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#endif
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#ifdef MOZ_X11
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,
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mIsShaped(false),
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mXDepth(0),
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mXWindow(0),
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mXVisual(nullptr)
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#endif
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{
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}
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#ifdef MOZ_WAYLAND
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void WindowSurfaceProvider::Initialize(RefPtr<nsWindow> aWidget) {
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mWidget = std::move(aWidget);
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}
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#endif
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#ifdef MOZ_X11
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void WindowSurfaceProvider::Initialize(Window aWindow, Visual* aVisual,
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int aDepth, bool aIsShaped) {
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mXWindow = aWindow;
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mXVisual = aVisual;
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mXDepth = aDepth;
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mIsShaped = aIsShaped;
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}
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#endif
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void WindowSurfaceProvider::CleanupResources() { mWindowSurface = nullptr; }
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RefPtr<WindowSurface> WindowSurfaceProvider::CreateWindowSurface() {
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#ifdef MOZ_WAYLAND
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if (GdkIsWaylandDisplay()) {
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return MakeRefPtr<WindowSurfaceWaylandMB>(mWidget);
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}
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#endif
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#ifdef MOZ_X11
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if (GdkIsX11Display()) {
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// Blit to the window with the following priority:
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// 1. MIT-SHM
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// 2. XPutImage
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# ifdef MOZ_HAVE_SHMIMAGE
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if (!mIsShaped && nsShmImage::UseShm()) {
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LOG(("Drawing to Window 0x%lx will use MIT-SHM\n", mXWindow));
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return MakeRefPtr<WindowSurfaceX11SHM>(DefaultXDisplay(), mXWindow,
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mXVisual, mXDepth);
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}
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# endif // MOZ_HAVE_SHMIMAGE
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LOG(("Drawing to Window 0x%lx will use XPutImage\n", mXWindow));
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return MakeRefPtr<WindowSurfaceX11Image>(DefaultXDisplay(), mXWindow,
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mXVisual, mXDepth, mIsShaped);
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}
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#endif
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MOZ_RELEASE_ASSERT(false);
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}
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already_AddRefed<gfx::DrawTarget>
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WindowSurfaceProvider::StartRemoteDrawingInRegion(
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const LayoutDeviceIntRegion& aInvalidRegion,
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layers::BufferMode* aBufferMode) {
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if (aInvalidRegion.IsEmpty()) return nullptr;
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if (!mWindowSurface) {
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mWindowSurface = CreateWindowSurface();
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if (!mWindowSurface) return nullptr;
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}
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*aBufferMode = BufferMode::BUFFER_NONE;
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RefPtr<gfx::DrawTarget> dt = mWindowSurface->Lock(aInvalidRegion);
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#ifdef MOZ_X11
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if (!dt && GdkIsX11Display() && !mWindowSurface->IsFallback()) {
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// We can't use WindowSurfaceX11Image fallback on Wayland but
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// Lock() call on WindowSurfaceWayland should never fail.
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gfxWarningOnce()
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<< "Failed to lock WindowSurface, falling back to XPutImage backend.";
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mWindowSurface = MakeRefPtr<WindowSurfaceX11Image>(
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DefaultXDisplay(), mXWindow, mXVisual, mXDepth, mIsShaped);
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dt = mWindowSurface->Lock(aInvalidRegion);
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}
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#endif
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return dt.forget();
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}
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void WindowSurfaceProvider::EndRemoteDrawingInRegion(
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gfx::DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
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if (mWindowSurface) mWindowSurface->Commit(aInvalidRegion);
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}
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} // namespace widget
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} // namespace mozilla
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