1 files changed, 86 insertions, 0 deletions
diff --git a/gfx/layers/composite/PaintedLayerComposite.h b/gfx/layers/composite/PaintedLayerComposite.h
new file mode 100644
index 0000000000..c2c22eb433
--- /dev/null
+++ b/gfx/layers/composite/PaintedLayerComposite.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "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:
+  void Disconnect() override;
+
+  CompositableHost* GetCompositableHost() override;
+
+  void Destroy() override;
+
+  Layer* GetLayer() override;
+
+  void SetLayerManager(HostLayerManager* aManager) override;
+
+  void RenderLayer(const gfx::IntRect& aClipRect,
+                   const Maybe<gfx::Polygon>& aGeometry) override;
+
+  void CleanupResources() override;
+
+  bool IsOpaque() override;
+
+  void GenEffectChain(EffectChain& aEffect) override;
+
+  bool SetCompositableHost(CompositableHost* aHost) override;
+
+  HostLayer* AsHostLayer() override { return this; }
+
+  void InvalidateRegion(const nsIntRegion& aRegion) override {
+    MOZ_CRASH("PaintedLayerComposites can't fill invalidated regions");
+  }
+
+  const 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 */