/* -*- 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 "TextureClientSharedSurface.h"

#include "GLContext.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/Logging.h"        // for gfxDebug
#include "mozilla/layers/ISurfaceAllocator.h"
#include "mozilla/unused.h"
#include "nsThreadUtils.h"
#include "SharedSurface.h"

#ifdef MOZ_WIDGET_GONK
#include "mozilla/layers/GrallocTextureClient.h"
#include "SharedSurfaceGralloc.h"
#endif

using namespace mozilla::gl;

namespace mozilla {
namespace layers {


SharedSurfaceTextureData::SharedSurfaceTextureData(UniquePtr<gl::SharedSurface> surf)
  : mSurf(Move(surf))
{}

SharedSurfaceTextureData::~SharedSurfaceTextureData()
{}

void
SharedSurfaceTextureData::Deallocate(ISurfaceAllocator*)
{}

gfx::IntSize
SharedSurfaceTextureData::GetSize() const
{
  return mSurf->mSize;
}

bool
SharedSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
{
  return mSurf->ToSurfaceDescriptor(&aOutDescriptor);
}


SharedSurfaceTextureClient::SharedSurfaceTextureClient(SharedSurfaceTextureData* aData,
                                                       TextureFlags aFlags,
                                                       ISurfaceAllocator* aAllocator)
: ClientTexture(aData, aFlags, aAllocator)
{}

already_AddRefed<SharedSurfaceTextureClient>
SharedSurfaceTextureClient::Create(UniquePtr<gl::SharedSurface> surf, gl::SurfaceFactory* factory,
                                   ISurfaceAllocator* aAllocator, TextureFlags aFlags)
{
  if (!surf) {
    return nullptr;
  }
  TextureFlags flags = aFlags | TextureFlags::RECYCLE | surf->GetTextureFlags();
  SharedSurfaceTextureData* data = new SharedSurfaceTextureData(Move(surf));
  return MakeAndAddRef<SharedSurfaceTextureClient>(data, flags, aAllocator);
}

void
SharedSurfaceTextureClient::SetReleaseFenceHandle(const FenceHandle& aReleaseFenceHandle)
{
#ifdef MOZ_WIDGET_GONK
  gl::SharedSurface_Gralloc* surf = nullptr;
  if (Surf()->mType == gl::SharedSurfaceType::Gralloc) {
    surf = gl::SharedSurface_Gralloc::Cast(Surf());
  }
  if (surf && surf->GetTextureClient()) {
    surf->GetTextureClient()->SetReleaseFenceHandle(aReleaseFenceHandle);
    return;
  }
#endif
  TextureClient::SetReleaseFenceHandle(aReleaseFenceHandle);
}

FenceHandle
SharedSurfaceTextureClient::GetAndResetReleaseFenceHandle()
{
#ifdef MOZ_WIDGET_GONK
  gl::SharedSurface_Gralloc* surf = nullptr;
  if (Surf()->mType == gl::SharedSurfaceType::Gralloc) {
    surf = gl::SharedSurface_Gralloc::Cast(Surf());
  }
  if (surf && surf->GetTextureClient()) {
    return surf->GetTextureClient()->GetAndResetReleaseFenceHandle();
  }
#endif
  return TextureClient::GetAndResetReleaseFenceHandle();
}

void
SharedSurfaceTextureClient::SetAcquireFenceHandle(const FenceHandle& aAcquireFenceHandle)
{
#ifdef MOZ_WIDGET_GONK
  gl::SharedSurface_Gralloc* surf = nullptr;
  if (Surf()->mType == gl::SharedSurfaceType::Gralloc) {
    surf = gl::SharedSurface_Gralloc::Cast(Surf());
  }
  if (surf && surf->GetTextureClient()) {
    return surf->GetTextureClient()->SetAcquireFenceHandle(aAcquireFenceHandle);
  }
#endif
  TextureClient::SetAcquireFenceHandle(aAcquireFenceHandle);
}

const FenceHandle&
SharedSurfaceTextureClient::GetAcquireFenceHandle() const
{
#ifdef MOZ_WIDGET_GONK
  gl::SharedSurface_Gralloc* surf = nullptr;
  if (Surf()->mType == gl::SharedSurfaceType::Gralloc) {
    surf = gl::SharedSurface_Gralloc::Cast(Surf());
  }
  if (surf && surf->GetTextureClient()) {
    return surf->GetTextureClient()->GetAcquireFenceHandle();
  }
#endif
  return TextureClient::GetAcquireFenceHandle();
}

} // namespace layers
} // namespace mozilla