The Tor Browser: gfx/layers/client/SimpleTiledContentClient.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: 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 MOZILLA_GFX_SIMPLETILEDCONTENTCLIENT_H

     7 #define MOZILLA_GFX_SIMPLETILEDCONTENTCLIENT_H

     9 // We include this header here so that we don't need to

    10 // duplicate BasicTiledLayerPaintData

    11 #include "TiledContentClient.h"

    13 #include "SharedBuffer.h"

    15 namespace mozilla {

    16 namespace layers {

    18 class ClientTiledThebesLayer;

    20 class SimpleTiledLayerTile;

    21 class SimpleTiledLayerBuffer;

    22 class SimpleClientTiledThebesLayer;

    23 class SimpleTiledLayerBuffer;

    25 #define GFX_SIMP_TILEDLAYER_DEBUG_OVERLAY

    27 struct SimpleTiledLayerTile

    28 {

    29   RefPtr<TextureClient> mTileBuffer;

    30   RefPtr<ClientLayerManager> mManager;

    31   nsRefPtr<SharedBuffer> mCachedBuffer;

    32   TimeStamp mLastUpdate;

    34   SimpleTiledLayerTile() { }

    36   SimpleTiledLayerTile(ClientLayerManager *aManager, TextureClient *aBuffer)

    37     : mTileBuffer(aBuffer)

    38     , mManager(aManager)

    39   { }

    41   bool operator== (const SimpleTiledLayerTile& o) const

    42   {

    43     return mTileBuffer == o.mTileBuffer;

    44   }

    46   bool operator!= (const SimpleTiledLayerTile& o) const

    47   {

    48     return mTileBuffer != o.mTileBuffer;

    49   }

    51   void SetLayerManager(ClientLayerManager *aManager)

    52   {

    53     mManager = aManager;

    54   }

    56   bool IsPlaceholderTile()

    57   {

    58     return mTileBuffer == nullptr;

    59   }

    61   TileDescriptor GetTileDescriptor()

    62   {

    63     if (mTileBuffer)

    64       return TexturedTileDescriptor(nullptr, mTileBuffer->GetIPDLActor(), 0);

    66     NS_NOTREACHED("Unhandled SimpleTiledLayerTile type");

    67     return PlaceholderTileDescriptor();

    68   }

    70   void Release()

    71   {

    72     mTileBuffer = nullptr;

    73     mCachedBuffer = nullptr;

    74   }

    75 };

    77 class SimpleTiledLayerBuffer

    78   : public TiledLayerBuffer<SimpleTiledLayerBuffer, SimpleTiledLayerTile>

    79 {

    80   friend class TiledLayerBuffer<SimpleTiledLayerBuffer, SimpleTiledLayerTile>;

    82 public:

    83   SimpleTiledLayerBuffer(SimpleClientTiledThebesLayer* aThebesLayer,

    84                          CompositableClient* aCompositableClient,

    85                          ClientLayerManager* aManager)

    86     : mThebesLayer(aThebesLayer)

    87     , mCompositableClient(aCompositableClient)

    88     , mManager(aManager)

    89     , mLastPaintOpaque(false)

    90   {}

    92   SimpleTiledLayerBuffer()

    93     : mLastPaintOpaque(false)

    94   {}

    96   void PaintThebes(const nsIntRegion& aNewValidRegion,

    97                    const nsIntRegion& aPaintRegion,

    98                    LayerManager::DrawThebesLayerCallback aCallback,

    99                    void* aCallbackData);

   101   SurfaceDescriptorTiles GetSurfaceDescriptorTiles();

   103   void Release() {

   104     for (size_t i = 0; i < mRetainedTiles.Length(); i++) {

   105       mRetainedTiles[i].Release();

   106     }

   107   }

   109   const CSSToParentLayerScale& GetFrameResolution() const { return mFrameResolution; }

   110   void SetFrameResolution(const CSSToParentLayerScale& aResolution) { mFrameResolution = aResolution; }

   112   bool HasFormatChanged() const;

   113 private:

   114   SimpleClientTiledThebesLayer* mThebesLayer;

   115   CompositableClient* mCompositableClient;

   116   ClientLayerManager* mManager;

   117   LayerManager::DrawThebesLayerCallback mCallback;

   118   void* mCallbackData;

   119   CSSToParentLayerScale mFrameResolution;

   120   bool mLastPaintOpaque;

   122   gfxContentType GetContentType() const;

   124   SimpleTiledLayerTile ValidateTile(SimpleTiledLayerTile aTile,

   125                                     const nsIntPoint& aTileOrigin,

   126                                     const nsIntRegion& aDirtyRect);

   128   SimpleTiledLayerTile GetPlaceholderTile() const { return SimpleTiledLayerTile(); }

   130   void ReleaseTile(SimpleTiledLayerTile aTile) { aTile.Release(); }

   132   void SwapTiles(SimpleTiledLayerTile& aTileA, SimpleTiledLayerTile& aTileB) { std::swap(aTileA, aTileB); }

   133 };

   135 class SimpleTiledContentClient : public CompositableClient

   136 {

   137   friend class SimpleClientTiledThebesLayer;

   139 public:

   140   SimpleTiledContentClient(SimpleClientTiledThebesLayer* aThebesLayer,

   141                            ClientLayerManager* aManager);

   143   ~SimpleTiledContentClient();

   145   virtual TextureInfo GetTextureInfo() const MOZ_OVERRIDE

   146   {

   147     return TextureInfo(BUFFER_SIMPLE_TILED);

   148   }

   150   void UseTiledLayerBuffer();

   152 private:

   153   SimpleTiledLayerBuffer mTiledBuffer;

   154 };

   156 class SimpleClientTiledThebesLayer : public ThebesLayer,

   157                                      public ClientLayer

   158 {

   159   typedef ThebesLayer Base;

   161 public:

   162   SimpleClientTiledThebesLayer(ClientLayerManager* const aManager);

   163   ~SimpleClientTiledThebesLayer();

   165   // Thebes Layer

   166   virtual Layer* AsLayer() { return this; }

   167   virtual void InvalidateRegion(const nsIntRegion& aRegion) {

   168     mInvalidRegion.Or(mInvalidRegion, aRegion);

   169     mValidRegion.Sub(mValidRegion, aRegion);

   170   }

   172   // Shadow methods

   173   virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs);

   174   virtual ShadowableLayer* AsShadowableLayer() { return this; }

   176   virtual void Disconnect() { ClientLayer::Disconnect(); }

   178   virtual void RenderLayer();

   180 protected:

   181   ClientLayerManager* ClientManager() { return static_cast<ClientLayerManager*>(mManager); }

   183   RefPtr<SimpleTiledContentClient> mContentClient;

   184 };

   186 } // mozilla

   187 } // layers

   189 #endif

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