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-rw-r--r--gfx/layers/composite/PaintedLayerComposite.h94
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diff --git a/gfx/layers/composite/PaintedLayerComposite.h b/gfx/layers/composite/PaintedLayerComposite.h
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+++ b/gfx/layers/composite/PaintedLayerComposite.h
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+/* -*- Mode: C++; tab-width: 20; 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_PaintedLayerComposite_H
+#define GFX_PaintedLayerComposite_H
+
+#include "Layers.h" // for Layer (ptr only), etc
+#include "mozilla/gfx/Rect.h"
+#include "mozilla/Attributes.h" // for override
+#include "mozilla/RefPtr.h" // for RefPtr
+#include "mozilla/layers/LayerManagerComposite.h" // for LayerComposite, etc
+#include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
+#include "nsDebug.h" // for NS_RUNTIMEABORT
+#include "nsRegion.h" // for nsIntRegion
+#include "nscore.h" // for nsACString
+
+
+namespace mozilla {
+namespace layers {
+
+/**
+ * PaintedLayers use ContentHosts for their compsositable host.
+ * By using different ContentHosts, PaintedLayerComposite support tiled and
+ * non-tiled PaintedLayers and single or double buffering.
+ */
+
+class CompositableHost;
+class ContentHost;
+
+class PaintedLayerComposite : public PaintedLayer,
+ public LayerComposite
+{
+public:
+ explicit PaintedLayerComposite(LayerManagerComposite *aManager);
+
+protected:
+ virtual ~PaintedLayerComposite();
+
+public:
+ virtual void Disconnect() override;
+
+ virtual LayerRenderState GetRenderState() override;
+
+ CompositableHost* GetCompositableHost() override;
+
+ virtual void Destroy() override;
+
+ virtual Layer* GetLayer() override;
+
+ virtual void SetLayerManager(LayerManagerComposite* aManager) override;
+
+ virtual void RenderLayer(const gfx::IntRect& aClipRect) override;
+
+ virtual void CleanupResources() override;
+
+ virtual void GenEffectChain(EffectChain& aEffect) override;
+
+ virtual bool SetCompositableHost(CompositableHost* aHost) override;
+
+ virtual LayerComposite* AsLayerComposite() override { return this; }
+
+ virtual void InvalidateRegion(const nsIntRegion& aRegion) override
+ {
+ NS_RUNTIMEABORT("PaintedLayerComposites can't fill invalidated regions");
+ }
+
+ void SetValidRegion(const nsIntRegion& aRegion)
+ {
+ MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) ValidRegion", this));
+ mValidRegion = aRegion;
+ Mutated();
+ }
+
+ const virtual gfx::TiledIntRegion& GetInvalidRegion() override;
+
+ MOZ_LAYER_DECL_NAME("PaintedLayerComposite", TYPE_PAINTED)
+
+protected:
+
+ virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
+
+private:
+ gfx::SamplingFilter GetSamplingFilter() { return gfx::SamplingFilter::LINEAR; }
+
+private:
+ RefPtr<ContentHost> mBuffer;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif /* GFX_PaintedLayerComposite_H */