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/* -*- 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
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