The Tor Browser: gfx/layers/opengl/MacIOSurfaceTextureClientOGL.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "MacIOSurfaceTextureClientOGL.h"

     7 #include "mozilla/gfx/MacIOSurface.h"

     9 namespace mozilla {

    10 namespace layers {

    12 MacIOSurfaceTextureClientOGL::MacIOSurfaceTextureClientOGL(TextureFlags aFlags)

    13   : TextureClient(aFlags)

    14   , mIsLocked(false)

    15 {}

    17 MacIOSurfaceTextureClientOGL::~MacIOSurfaceTextureClientOGL()

    18 {}

    20 void

    21 MacIOSurfaceTextureClientOGL::InitWith(MacIOSurface* aSurface)

    22 {

    23   MOZ_ASSERT(IsValid());

    24   MOZ_ASSERT(!IsAllocated());

    25   mSurface = aSurface;

    26 }

    28 bool

    29 MacIOSurfaceTextureClientOGL::Lock(OpenMode aMode)

    30 {

    31   MOZ_ASSERT(!mIsLocked);

    32   mIsLocked = true;

    33   return IsValid() && IsAllocated();

    34 }

    36 void

    37 MacIOSurfaceTextureClientOGL::Unlock()

    38 {

    39   MOZ_ASSERT(mIsLocked);

    40   mIsLocked = false;

    41 }

    43 bool

    44 MacIOSurfaceTextureClientOGL::IsLocked() const

    45 {

    46   return mIsLocked;

    47 }

    49 bool

    50 MacIOSurfaceTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)

    51 {

    52   MOZ_ASSERT(IsValid());

    53   if (!IsAllocated()) {

    54     return false;

    55   }

    56   aOutDescriptor = SurfaceDescriptorMacIOSurface(mSurface->GetIOSurfaceID(),

    57                                                  mSurface->GetContentsScaleFactor(),

    58                                                  mSurface->HasAlpha());

    59   return true;

    60 }

    62 gfx::IntSize

    63 MacIOSurfaceTextureClientOGL::GetSize() const

    64 {

    65   return gfx::IntSize(mSurface->GetDevicePixelWidth(), mSurface->GetDevicePixelHeight());

    66 }

    68 class MacIOSurfaceTextureClientData : public TextureClientData

    69 {

    70 public:

    71   MacIOSurfaceTextureClientData(MacIOSurface* aSurface)

    72     : mSurface(aSurface)

    73   {}

    75   virtual void DeallocateSharedData(ISurfaceAllocator*) MOZ_OVERRIDE

    76   {

    77     mSurface = nullptr;

    78   }

    80 private:

    81   RefPtr<MacIOSurface> mSurface;

    82 };

    84 TextureClientData*

    85 MacIOSurfaceTextureClientOGL::DropTextureData()

    86 {

    87   TextureClientData* data = new MacIOSurfaceTextureClientData(mSurface);

    88   mSurface = nullptr;

    89   MarkInvalid();

    90   return data;

    91 }

    93 }

    94 }

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