Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; 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/. */
       5             : 
       6             : #ifndef GFX_WEBRENDERLAYER_H
       7             : #define GFX_WEBRENDERLAYER_H
       8             : 
       9             : #include "Layers.h"
      10             : #include "mozilla/webrender/WebRenderTypes.h"
      11             : #include "mozilla/webrender/WebRenderAPI.h"
      12             : 
      13             : namespace mozilla {
      14             : namespace layers {
      15             : 
      16             : class ImageClientSingle;
      17             : class StackingContextHelper;
      18             : class WebRenderBridgeChild;
      19             : class WebRenderLayerManager;
      20             : 
      21             : typedef gfx::Matrix4x4Typed<LayerPixel, LayerPixel> BoundsTransformMatrix;
      22             : 
      23           0 : class WebRenderLayer
      24             : {
      25             : public:
      26             :   virtual Layer* GetLayer() = 0;
      27             :   virtual void RenderLayer(wr::DisplayListBuilder& aBuilder,
      28             :                            const StackingContextHelper& aSc) = 0;
      29           0 :   virtual Maybe<WrImageMask> RenderMaskLayer(const StackingContextHelper& aSc,
      30             :                                              const gfx::Matrix4x4& aTransform)
      31             :   {
      32           0 :     MOZ_ASSERT(false);
      33             :     return Nothing();
      34             :   }
      35             : 
      36           0 :   virtual already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() { return nullptr; }
      37             :   static inline WebRenderLayer*
      38           0 :   ToWebRenderLayer(Layer* aLayer)
      39             :   {
      40           0 :     return static_cast<WebRenderLayer*>(aLayer->ImplData());
      41             :   }
      42             : 
      43             :   Maybe<wr::ImageKey> UpdateImageKey(ImageClientSingle* aImageClient,
      44             :                                      ImageContainer* aContainer,
      45             :                                      Maybe<wr::ImageKey>& aOldKey,
      46             :                                      wr::ExternalImageId& aExternalImageId);
      47             : 
      48             :   WebRenderLayerManager* WrManager();
      49             :   WebRenderBridgeChild* WrBridge();
      50             :   WrImageKey GetImageKey();
      51             : 
      52             :   LayerRect Bounds();
      53             :   LayerRect BoundsForStackingContext();
      54             : 
      55             :   // Builds a WrImageMask from the mask layer on this layer, if there is one.
      56             :   // The |aRelativeTo| parameter should be a reference to the stacking context
      57             :   // that we want this mask to be relative to. This is usually the stacking
      58             :   // context of the *parent* layer of |this|, because that is what the mask
      59             :   // is relative to in the layer tree.
      60             :   Maybe<WrImageMask> BuildWrMaskLayer(const StackingContextHelper& aRelativeTo);
      61             : 
      62             : protected:
      63             :   BoundsTransformMatrix BoundsTransform();
      64             : 
      65             :   void DumpLayerInfo(const char* aLayerType, const LayerRect& aRect);
      66             : };
      67             : 
      68             : } // namespace layers
      69             : } // namespace mozilla
      70             : 
      71             : #endif /* GFX_WEBRENDERLAYER_H */