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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// * 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 "mozilla/layers/TextureClientX11.h"
#include "mozilla/layers/CompositableClient.h"
#include "mozilla/layers/CompositableForwarder.h"
#include "mozilla/layers/ISurfaceAllocator.h"
#include "mozilla/layers/ShadowLayerUtilsX11.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/Logging.h"
#include "gfxXlibSurface.h"
#include "gfx2DGlue.h"
#include "mozilla/X11Util.h"
#include <X11/Xlib.h>
using namespace mozilla;
using namespace mozilla::gfx;
namespace mozilla {
namespace layers {
X11TextureData::X11TextureData(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
bool aClientDeallocation, bool aIsCrossProcess,
gfxXlibSurface* aSurface)
: mSize(aSize)
, mFormat(aFormat)
, mSurface(aSurface)
, mClientDeallocation(aClientDeallocation)
, mIsCrossProcess(aIsCrossProcess)
{
MOZ_ASSERT(mSurface);
}
bool
X11TextureData::Lock(OpenMode aMode)
{
return true;
}
void
X11TextureData::Unlock()
{
if (mSurface && mIsCrossProcess) {
FinishX(DefaultXDisplay());
}
}
void
X11TextureData::FillInfo(TextureData::Info& aInfo) const
{
aInfo.size = mSize;
aInfo.format = mFormat;
aInfo.supportsMoz2D = true;
aInfo.hasIntermediateBuffer = false;
aInfo.hasSynchronization = false;
aInfo.canExposeMappedData = false;
}
bool
X11TextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
{
MOZ_ASSERT(mSurface);
if (!mSurface) {
return false;
}
if (!mClientDeallocation) {
// Pass to the host the responsibility of freeing the pixmap. ReleasePixmap means
// the underlying pixmap will not be deallocated in mSurface's destructor.
// ToSurfaceDescriptor is at most called once per TextureClient.
mSurface->ReleasePixmap();
}
aOutDescriptor = SurfaceDescriptorX11(mSurface);
return true;
}
already_AddRefed<gfx::DrawTarget>
X11TextureData::BorrowDrawTarget()
{
MOZ_ASSERT(mSurface);
if (!mSurface) {
return nullptr;
}
IntSize size = mSurface->GetSize();
RefPtr<gfx::DrawTarget> dt = Factory::CreateDrawTargetForCairoSurface(mSurface->CairoSurface(), size);
return dt.forget();
}
bool
X11TextureData::UpdateFromSurface(gfx::SourceSurface* aSurface)
{
RefPtr<DrawTarget> dt = BorrowDrawTarget();
if (!dt) {
return false;
}
dt->CopySurface(aSurface, IntRect(IntPoint(), aSurface->GetSize()), IntPoint());
return true;
}
void
X11TextureData::Deallocate(LayersIPCChannel*)
{
mSurface = nullptr;
}
TextureData*
X11TextureData::CreateSimilar(LayersIPCChannel* aAllocator,
LayersBackend aLayersBackend,
TextureFlags aFlags,
TextureAllocationFlags aAllocFlags) const
{
return X11TextureData::Create(mSize, mFormat, aFlags, aAllocator);
}
X11TextureData*
X11TextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
TextureFlags aFlags, LayersIPCChannel* aAllocator)
{
MOZ_ASSERT(aSize.width >= 0 && aSize.height >= 0);
if (aSize.width <= 0 || aSize.height <= 0 ||
aSize.width > XLIB_IMAGE_SIDE_SIZE_LIMIT ||
aSize.height > XLIB_IMAGE_SIDE_SIZE_LIMIT) {
gfxDebug() << "Asking for X11 surface of invalid size " << aSize.width << "x" << aSize.height;
return nullptr;
}
gfxImageFormat imageFormat = SurfaceFormatToImageFormat(aFormat);
RefPtr<gfxASurface> surface = gfxPlatform::GetPlatform()->CreateOffscreenSurface(aSize, imageFormat);
if (!surface || surface->GetType() != gfxSurfaceType::Xlib) {
NS_ERROR("creating Xlib surface failed!");
return nullptr;
}
gfxXlibSurface* xlibSurface = static_cast<gfxXlibSurface*>(surface.get());
bool crossProcess = !aAllocator->IsSameProcess();
X11TextureData* texture = new X11TextureData(aSize, aFormat,
!!(aFlags & TextureFlags::DEALLOCATE_CLIENT),
crossProcess,
xlibSurface);
if (crossProcess) {
FinishX(DefaultXDisplay());
}
return texture;
}
} // namespace
} // namespace
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