/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 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/. */ #include "WindowSurfaceProvider.h" #include "gfxPlatformGtk.h" #include "mozilla/layers/LayersTypes.h" #include "WindowSurfaceX11Image.h" #include "WindowSurfaceX11SHM.h" #include "WindowSurfaceXRender.h" namespace mozilla { namespace widget { using namespace mozilla::gfx; using namespace mozilla::layers; WindowSurfaceProvider::WindowSurfaceProvider() : mXDisplay(nullptr) , mXWindow(0) , mXVisual(nullptr) , mXDepth(0) , mWindowSurface(nullptr) { } void WindowSurfaceProvider::Initialize( Display* aDisplay, Window aWindow, Visual* aVisual, int aDepth) { // We should not be initialized MOZ_ASSERT(!mXDisplay); // This should also be a valid initialization MOZ_ASSERT(aDisplay && aWindow != X11None && aVisual); mXDisplay = aDisplay; mXWindow = aWindow; mXVisual = aVisual; mXDepth = aDepth; } void WindowSurfaceProvider::CleanupResources() { mWindowSurface = nullptr; } UniquePtr<WindowSurface> WindowSurfaceProvider::CreateWindowSurface() { // We should be initialized MOZ_ASSERT(mXDisplay); // Blit to the window with the following priority: // 1. XRender (iff XRender is enabled && we are in-process) // 2. MIT-SHM // 3. XPutImage #ifdef MOZ_WIDGET_GTK if (gfxVars::UseXRender()) { LOGDRAW(("Drawing to nsWindow %p using XRender\n", (void*)this)); return MakeUnique<WindowSurfaceXRender>(mXDisplay, mXWindow, mXVisual, mXDepth); } #endif // MOZ_WIDGET_GTK #ifdef MOZ_HAVE_SHMIMAGE if (nsShmImage::UseShm()) { LOGDRAW(("Drawing to nsWindow %p using MIT-SHM\n", (void*)this)); return MakeUnique<WindowSurfaceX11SHM>(mXDisplay, mXWindow, mXVisual, mXDepth); } #endif // MOZ_HAVE_SHMIMAGE LOGDRAW(("Drawing to nsWindow %p using XPutImage\n", (void*)this)); return MakeUnique<WindowSurfaceX11Image>(mXDisplay, mXWindow, mXVisual, mXDepth); } already_AddRefed<gfx::DrawTarget> WindowSurfaceProvider::StartRemoteDrawingInRegion(LayoutDeviceIntRegion& aInvalidRegion, layers::BufferMode* aBufferMode) { if (aInvalidRegion.IsEmpty()) return nullptr; if (!mWindowSurface) { mWindowSurface = CreateWindowSurface(); if (!mWindowSurface) return nullptr; } *aBufferMode = BufferMode::BUFFER_NONE; RefPtr<DrawTarget> dt = nullptr; if (!(dt = mWindowSurface->Lock(aInvalidRegion)) && !mWindowSurface->IsFallback()) { gfxWarningOnce() << "Failed to lock WindowSurface, falling back to XPutImage backend."; mWindowSurface = MakeUnique<WindowSurfaceX11Image>(mXDisplay, mXWindow, mXVisual, mXDepth); dt = mWindowSurface->Lock(aInvalidRegion); } return dt.forget(); } void WindowSurfaceProvider::EndRemoteDrawingInRegion(gfx::DrawTarget* aDrawTarget, LayoutDeviceIntRegion& aInvalidRegion) { if (mWindowSurface) mWindowSurface->Commit(aInvalidRegion); } } // namespace mozilla } // namespace widget