1 files changed, 127 insertions, 0 deletions
diff --git a/gfx/layers/client/ClientPaintedLayer.h b/gfx/layers/client/ClientPaintedLayer.h
new file mode 100644
index 000000000..949f746ae
--- /dev/null
+++ b/gfx/layers/client/ClientPaintedLayer.h
@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_CLIENTPAINTEDLAYER_H
+#define GFX_CLIENTPAINTEDLAYER_H
+
+#include "ClientLayerManager.h"         // for ClientLayerManager, etc
+#include "Layers.h"                     // for PaintedLayer, etc
+#include "RotatedBuffer.h"              // for RotatedContentBuffer, etc
+#include "mozilla/Attributes.h"         // for override
+#include "mozilla/RefPtr.h"             // for RefPtr
+#include "mozilla/layers/ContentClient.h"  // for ContentClient
+#include "mozilla/mozalloc.h"           // for operator delete
+#include "nsDebug.h"                    // for NS_ASSERTION
+#include "nsISupportsImpl.h"            // for MOZ_COUNT_CTOR, etc
+#include "nsRegion.h"                   // for nsIntRegion
+#include "mozilla/layers/PLayerTransaction.h" // for PaintedLayerAttributes
+
+namespace mozilla {
+namespace layers {
+
+class CompositableClient;
+class ShadowableLayer;
+class SpecificLayerAttributes;
+
+class ClientPaintedLayer : public PaintedLayer,
+                           public ClientLayer {
+public:
+  typedef RotatedContentBuffer::PaintState PaintState;
+  typedef RotatedContentBuffer::ContentType ContentType;
+
+  explicit ClientPaintedLayer(ClientLayerManager* aLayerManager,
+                             LayerManager::PaintedLayerCreationHint aCreationHint = LayerManager::NONE) :
+    PaintedLayer(aLayerManager, static_cast<ClientLayer*>(this), aCreationHint),
+    mContentClient(nullptr)
+  {
+    MOZ_COUNT_CTOR(ClientPaintedLayer);
+  }
+
+protected:
+  virtual ~ClientPaintedLayer()
+  {
+    if (mContentClient) {
+      mContentClient->OnDetach();
+      mContentClient = nullptr;
+    }
+    MOZ_COUNT_DTOR(ClientPaintedLayer);
+  }
+
+public:
+  virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override
+  {
+    NS_ASSERTION(ClientManager()->InConstruction(),
+                 "Can only set properties in construction phase");
+    PaintedLayer::SetVisibleRegion(aRegion);
+  }
+  virtual void InvalidateRegion(const nsIntRegion& aRegion) override
+  {
+    NS_ASSERTION(ClientManager()->InConstruction(),
+                 "Can only set properties in construction phase");
+    mInvalidRegion.Add(aRegion);
+    mValidRegion.Sub(mValidRegion, mInvalidRegion.GetRegion());
+  }
+
+  virtual void RenderLayer() override { RenderLayerWithReadback(nullptr); }
+
+  virtual void RenderLayerWithReadback(ReadbackProcessor *aReadback) override;
+
+  virtual void ClearCachedResources() override
+  {
+    if (mContentClient) {
+      mContentClient->Clear();
+    }
+    mValidRegion.SetEmpty();
+    DestroyBackBuffer();
+  }
+
+  virtual void HandleMemoryPressure() override
+  {
+    if (mContentClient) {
+      mContentClient->HandleMemoryPressure();
+    }
+  }
+
+  virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs) override
+  {
+    aAttrs = PaintedLayerAttributes(GetValidRegion());
+  }
+  
+  ClientLayerManager* ClientManager()
+  {
+    return static_cast<ClientLayerManager*>(mManager);
+  }
+  
+  virtual Layer* AsLayer() override { return this; }
+  virtual ShadowableLayer* AsShadowableLayer() override { return this; }
+
+  virtual CompositableClient* GetCompositableClient() override
+  {
+    return mContentClient;
+  }
+
+  virtual void Disconnect() override
+  {
+    mContentClient = nullptr;
+    ClientLayer::Disconnect();
+  }
+
+protected:
+  void PaintThebes();
+
+  virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
+
+  void DestroyBackBuffer()
+  {
+    mContentClient = nullptr;
+  }
+
+  RefPtr<ContentClient> mContentClient;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif