gfx/layers/opengl/CanvasLayerOGL.h
author Chris Jones <jones.chris.g@gmail.com>
Fri, 03 Sep 2010 15:10:46 -0500
changeset 54083 8321155e8dad2fb39353be91023c23f85600f215
parent 49072 0ebbc02a5c8726cb61224758767200a9d8c21db4
child 55453 629729b11dc6ee19fff266f00bc8b2c9933d5b5e
permissions -rw-r--r--
Bug 590294, part 8: Implement resolution-scaled drawing for basic layers. r=roc

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 *   Vladimir Vukicevic <vladimir@pobox.com>
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#ifndef GFX_CANVASLAYEROGL_H
#define GFX_CANVASLAYEROGL_H

#include "LayerManagerOGL.h"
#include "gfxASurface.h"

namespace mozilla {
namespace layers {

class THEBES_API CanvasLayerOGL :
  public CanvasLayer,
  public LayerOGL
{
public:
  CanvasLayerOGL(LayerManagerOGL *aManager)
    : CanvasLayer(aManager, NULL),
      LayerOGL(aManager),
      mTexture(0)
  { 
      mImplData = static_cast<LayerOGL*>(this);
  }
  ~CanvasLayerOGL() { Destroy(); }

  // CanvasLayer implementation
  virtual void Initialize(const Data& aData);
  virtual void Updated(const nsIntRect& aRect);

  // LayerOGL implementation
  virtual void Destroy();
  virtual Layer* GetLayer() { return this; }
  virtual void RenderLayer(int aPreviousFrameBuffer,
                           const nsIntPoint& aOffset);

protected:
  nsRefPtr<gfxASurface> mCanvasSurface;
  nsRefPtr<GLContext> mCanvasGLContext;

  void MakeTexture();
  GLuint mTexture;

  nsIntRect mBounds;
  nsIntRect mUpdatedRect;

  PRPackedBool mGLBufferIsPremultiplied;
  PRPackedBool mNeedsYFlip;
};

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