The Tor Browser: gfx/layers/d3d9/ThebesLayerD3D9.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     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_THEBESLAYERD3D9_H

     7 #define GFX_THEBESLAYERD3D9_H

     9 #include "Layers.h"

    10 #include "LayerManagerD3D9.h"

    11 #include "ReadbackProcessor.h"

    13 namespace mozilla {

    14 namespace layers {

    16 class ReadbackProcessor;

    18 class ThebesLayerD3D9 : public ThebesLayer,

    19                         public LayerD3D9

    20 {

    21 public:

    22   ThebesLayerD3D9(LayerManagerD3D9 *aManager);

    23   virtual ~ThebesLayerD3D9();

    25   /* ThebesLayer implementation */

    26   void InvalidateRegion(const nsIntRegion& aRegion);

    28   /* LayerD3D9 implementation */

    29   Layer* GetLayer();

    30   virtual bool IsEmpty();

    31   virtual void RenderLayer() { RenderThebesLayer(nullptr); }

    32   virtual void CleanResources();

    33   virtual void LayerManagerDestroyed();

    35   void RenderThebesLayer(ReadbackProcessor* aReadback);

    37 private:

    38   /*

    39    * D3D9 texture

    40    */

    41   nsRefPtr<IDirect3DTexture9> mTexture;

    42   /*

    43    * D3D9 texture for render-on-white when doing component alpha

    44    */

    45   nsRefPtr<IDirect3DTexture9> mTextureOnWhite;

    46   /**

    47    * Visible region bounds used when we drew the contents of the textures

    48    */

    49   nsIntRect mTextureRect;

    51   bool HaveTextures(SurfaceMode aMode)

    52   {

    53     return mTexture && (aMode != SurfaceMode::SURFACE_COMPONENT_ALPHA || mTextureOnWhite);

    54   }

    56   /* Checks if our surface has the right content type */

    57   void VerifyContentType(SurfaceMode aMode);

    59   /* Ensures we have the necessary texture object(s) and that they correspond

    60    * to mVisibleRegion.GetBounds(). This creates new texture objects as

    61    * necessary and also copies existing valid texture data if necessary.

    62    */

    63   void UpdateTextures(SurfaceMode aMode);

    65   /* Render the rectangles of mVisibleRegion with D3D9 using the currently

    66    * bound textures, target, shaders, etc.

    67    */

    68   void RenderRegion(const nsIntRegion& aRegion);

    70   /* Have a region of our layer drawn */

    71   void DrawRegion(nsIntRegion &aRegion, SurfaceMode aMode,

    72                   const nsTArray<ReadbackProcessor::Update>& aReadbackUpdates);

    74   /* Create a new texture */

    75   void CreateNewTextures(const gfx::IntSize &aSize, SurfaceMode aMode);

    77   void CopyRegion(IDirect3DTexture9* aSrc, const nsIntPoint &aSrcOffset,

    78                   IDirect3DTexture9* aDest, const nsIntPoint &aDestOffset,

    79                   const nsIntRegion &aCopyRegion, nsIntRegion* aValidRegion);

    80 };

    82 } /* layers */

    83 } /* mozilla */

    84 #endif /* GFX_THEBESLAYERD3D9_H */

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