The Tor Browser: gfx/layers/d3d9/CanvasLayerD3D9.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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 #ifndef GFX_CANVASLAYERD3D9_H

     7 #define GFX_CANVASLAYERD3D9_H

     9 #include "LayerManagerD3D9.h"

    10 #include "GLContextTypes.h"

    12 namespace mozilla {

    13 namespace layers {

    16 class CanvasLayerD3D9 :

    17   public CanvasLayer,

    18   public LayerD3D9

    19 {

    20 public:

    21   CanvasLayerD3D9(LayerManagerD3D9 *aManager);

    22   ~CanvasLayerD3D9();

    24   // CanvasLayer implementation

    25   virtual void Initialize(const Data& aData);

    27   // LayerD3D9 implementation

    28   virtual Layer* GetLayer();

    29   virtual void RenderLayer();

    30   virtual void CleanResources();

    31   virtual void LayerManagerDestroyed();

    33   void CreateTexture();

    35 protected:

    36   typedef mozilla::gl::GLContext GLContext;

    38   void UpdateSurface();

    40   nsRefPtr<GLContext> mGLContext;

    41   nsRefPtr<IDirect3DTexture9> mTexture;

    42   RefPtr<gfx::DrawTarget> mDrawTarget;

    44   bool mDataIsPremultiplied;

    45   bool mNeedsYFlip;

    46   bool mHasAlpha;

    48   nsAutoArrayPtr<uint8_t> mCachedTempBlob;

    49   uint32_t mCachedTempBlob_Size;

    51   uint8_t* GetTempBlob(const uint32_t aSize)

    52   {

    53       if (!mCachedTempBlob || aSize != mCachedTempBlob_Size) {

    54           mCachedTempBlob = new uint8_t[aSize];

    55           mCachedTempBlob_Size = aSize;

    56       }

    58       return mCachedTempBlob;

    59   }

    61   void DiscardTempBlob()

    62   {

    63       mCachedTempBlob = nullptr;

    64   }

    65 };

    67 } /* layers */

    68 } /* mozilla */

    69 #endif /* GFX_CANVASLAYERD3D9_H */

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