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