gecko/gfx/layers/opengl/ImageLayerOGL.h

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * Software distributed under the License is distributed on an "AS IS" basis,
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 * for the specific language governing rights and limitations under the
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 * The Original Code is Mozilla Corporation code.
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 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Bas Schouten <bschouten@mozilla.org>
 *
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef GFX_IMAGELAYEROGL_H
#define GFX_IMAGELAYEROGL_H

#include "LayerManagerOGL.h"
#include "ImageLayers.h"
#include "mozilla/Mutex.h"

namespace mozilla {
namespace layers {

class THEBES_API ImageContainerOGL : public ImageContainer
{
public:
  ImageContainerOGL(LayerManagerOGL *aManager);
  virtual ~ImageContainerOGL() {}

  virtual already_AddRefed<Image> CreateImage(const Image::Format* aFormats,
                                              PRUint32 aNumFormats);

  virtual void SetCurrentImage(Image* aImage);

  virtual already_AddRefed<Image> GetCurrentImage();

  virtual already_AddRefed<gfxASurface> GetCurrentAsSurface(gfxIntSize* aSize);

  virtual gfxIntSize GetCurrentSize();

private:
  typedef mozilla::Mutex Mutex;

  nsRefPtr<Image> mActiveImage;

  Mutex mActiveImageLock;
};

class THEBES_API ImageLayerOGL : public ImageLayer,
                                 public LayerOGL
{
public:
  ImageLayerOGL(LayerManagerOGL *aManager)
    : ImageLayer(aManager, NULL)
    , LayerOGL(aManager)
  { 
    mImplData = static_cast<LayerOGL*>(this);
  }

  // LayerOGL Implementation
  virtual LayerType GetType();

  virtual Layer* GetLayer();

  virtual void RenderLayer(int aPreviousDestination);
};

class THEBES_API PlanarYCbCrImageOGL : public PlanarYCbCrImage
{
public:
  PlanarYCbCrImageOGL(LayerManagerOGL *aManager);
  virtual ~PlanarYCbCrImageOGL();

  virtual void SetData(const Data &aData);

  /**
   * Upload the data from out mData into our textures. For now we use this to
   * make sure the textures are created and filled on the main thread.
   */
  virtual void AllocateTextures();
  /**
   * XXX
   * Free the textures, we call this from the main thread when we're done
   * drawing this frame. We cannot free this from the constructor since it may
   * be destroyed off the main-thread and might not be able to properly clean
   * up its textures
   */
  virtual void FreeTextures();
  virtual PRBool HasData() { return mHasData; }

  Data mData;
  PRBool mLoaded;
  PRBool mHasData;
  GLuint mTextures[3];
  gfxIntSize mSize;
  LayerManagerOGL *mManager;
};


class THEBES_API CairoImageOGL : public CairoImage
{
public:
  CairoImageOGL(LayerManagerOGL *aManager)
    : CairoImage(NULL)
    , mManager(aManager)
  { }
  ~CairoImageOGL();

  virtual void SetData(const Data &aData);

  GLuint mTexture;
  gfxIntSize mSize;
  LayerManagerOGL *mManager;
};

} /* layers */
} /* mozilla */
#endif /* GFX_IMAGELAYEROGL_H */