The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/layers/basic/TextureClientX11.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,109 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 +//  * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +#include "mozilla/layers/TextureClientX11.h"
     1.9 +#include "mozilla/layers/CompositableClient.h"
    1.10 +#include "mozilla/layers/CompositableForwarder.h"
    1.11 +#include "mozilla/layers/ISurfaceAllocator.h"
    1.12 +#include "mozilla/layers/ShadowLayerUtilsX11.h"
    1.13 +#include "mozilla/gfx/2D.h"
    1.14 +#include "gfxXlibSurface.h"
    1.15 +#include "gfx2DGlue.h"
    1.16 +
    1.17 +#include "mozilla/X11Util.h"
    1.18 +#include <X11/Xlib.h>
    1.19 +
    1.20 +using namespace mozilla;
    1.21 +using namespace mozilla::gfx;
    1.22 +using namespace mozilla::layers;
    1.23 +
    1.24 +TextureClientX11::TextureClientX11(SurfaceFormat aFormat, TextureFlags aFlags)
    1.25 +  : TextureClient(aFlags),
    1.26 +    mFormat(aFormat),
    1.27 +    mLocked(false)
    1.28 +{
    1.29 +  MOZ_COUNT_CTOR(TextureClientX11);
    1.30 +}
    1.31 +
    1.32 +TextureClientX11::~TextureClientX11()
    1.33 +{
    1.34 +  MOZ_COUNT_DTOR(TextureClientX11);
    1.35 +}
    1.36 +
    1.37 +bool
    1.38 +TextureClientX11::IsAllocated() const
    1.39 +{
    1.40 +  return !!mSurface;
    1.41 +}
    1.42 +
    1.43 +bool
    1.44 +TextureClientX11::Lock(OpenMode aMode)
    1.45 +{
    1.46 +  MOZ_ASSERT(!mLocked, "The TextureClient is already Locked!");
    1.47 +  mLocked = IsValid() && IsAllocated();
    1.48 +  return mLocked;
    1.49 +}
    1.50 +
    1.51 +void
    1.52 +TextureClientX11::Unlock()
    1.53 +{
    1.54 +  MOZ_ASSERT(mLocked, "The TextureClient is already Unlocked!");
    1.55 +  mLocked = false;
    1.56 +
    1.57 +  if (mSurface) {
    1.58 +    FinishX(DefaultXDisplay());
    1.59 +  }
    1.60 +}
    1.61 +
    1.62 +bool
    1.63 +TextureClientX11::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
    1.64 +{
    1.65 +  MOZ_ASSERT(IsValid());
    1.66 +  if (!mSurface) {
    1.67 +    return false;
    1.68 +  }
    1.69 +
    1.70 +  aOutDescriptor = SurfaceDescriptorX11(mSurface);
    1.71 +  return true;
    1.72 +}
    1.73 +
    1.74 +TextureClientData*
    1.75 +TextureClientX11::DropTextureData()
    1.76 +{
    1.77 +  MOZ_ASSERT(!(mFlags & TEXTURE_DEALLOCATE_CLIENT));
    1.78 +  return nullptr;
    1.79 +}
    1.80 +
    1.81 +bool
    1.82 +TextureClientX11::AllocateForSurface(IntSize aSize, TextureAllocationFlags aTextureFlags)
    1.83 +{
    1.84 +  MOZ_ASSERT(IsValid());
    1.85 +  //MOZ_ASSERT(mFormat != gfx::FORMAT_YUV, "This TextureClient cannot use YCbCr data");
    1.86 +
    1.87 +  gfxContentType contentType = ContentForFormat(mFormat);
    1.88 +  nsRefPtr<gfxASurface> surface = gfxPlatform::GetPlatform()->CreateOffscreenSurface(aSize, contentType);
    1.89 +  if (!surface || surface->GetType() != gfxSurfaceType::Xlib) {
    1.90 +    NS_ERROR("creating Xlib surface failed!");
    1.91 +    return false;
    1.92 +  }
    1.93 +
    1.94 +  mSize = aSize;
    1.95 +  mSurface = static_cast<gfxXlibSurface*>(surface.get());
    1.96 +
    1.97 +  // The host is always responsible for freeing the pixmap.
    1.98 +  mSurface->ReleasePixmap();
    1.99 +  return true;
   1.100 +}
   1.101 +
   1.102 +TemporaryRef<DrawTarget>
   1.103 +TextureClientX11::GetAsDrawTarget()
   1.104 +{
   1.105 +  MOZ_ASSERT(IsValid());
   1.106 +  if (!mSurface) {
   1.107 +    return nullptr;
   1.108 +  }
   1.109 +
   1.110 +  IntSize size = ToIntSize(mSurface->GetSize());
   1.111 +  return Factory::CreateDrawTargetForCairoSurface(mSurface->CairoSurface(), size);
   1.112 +}