gecko-dev/gfx/layers/opengl/MacIOSurfaceTextureClientOGL.cpp

95 lines
2.1 KiB
C++

/* -*- 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 "MacIOSurfaceTextureClientOGL.h"
#include "mozilla/gfx/MacIOSurface.h"
namespace mozilla {
namespace layers {
MacIOSurfaceTextureClientOGL::MacIOSurfaceTextureClientOGL(TextureFlags aFlags)
: TextureClient(aFlags)
, mIsLocked(false)
{}
MacIOSurfaceTextureClientOGL::~MacIOSurfaceTextureClientOGL()
{}
void
MacIOSurfaceTextureClientOGL::InitWith(MacIOSurface* aSurface)
{
MOZ_ASSERT(IsValid());
MOZ_ASSERT(!IsAllocated());
mSurface = aSurface;
}
bool
MacIOSurfaceTextureClientOGL::Lock(OpenMode aMode)
{
MOZ_ASSERT(!mIsLocked);
mIsLocked = true;
return IsValid() && IsAllocated();
}
void
MacIOSurfaceTextureClientOGL::Unlock()
{
MOZ_ASSERT(mIsLocked);
mIsLocked = false;
}
bool
MacIOSurfaceTextureClientOGL::IsLocked() const
{
return mIsLocked;
}
bool
MacIOSurfaceTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
{
MOZ_ASSERT(IsValid());
if (!IsAllocated()) {
return false;
}
aOutDescriptor = SurfaceDescriptorMacIOSurface(mSurface->GetIOSurfaceID(),
mSurface->GetContentsScaleFactor(),
mSurface->HasAlpha());
return true;
}
gfx::IntSize
MacIOSurfaceTextureClientOGL::GetSize() const
{
return gfx::IntSize(mSurface->GetDevicePixelWidth(), mSurface->GetDevicePixelHeight());
}
class MacIOSurfaceTextureClientData : public TextureClientData
{
public:
MacIOSurfaceTextureClientData(MacIOSurface* aSurface)
: mSurface(aSurface)
{}
virtual void DeallocateSharedData(ISurfaceAllocator*) MOZ_OVERRIDE
{
mSurface = nullptr;
}
private:
RefPtr<MacIOSurface> mSurface;
};
TextureClientData*
MacIOSurfaceTextureClientOGL::DropTextureData()
{
TextureClientData* data = new MacIOSurfaceTextureClientData(mSurface);
mSurface = nullptr;
MarkInvalid();
return data;
}
}
}