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diff --git a/gfx/layers/basic/BasicPaintedLayer.h b/gfx/layers/basic/BasicPaintedLayer.h
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+/* -*- 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_BASICPAINTEDLAYER_H
+#define GFX_BASICPAINTEDLAYER_H
+
+#include "Layers.h" // for PaintedLayer, LayerManager, etc
+#include "RotatedBuffer.h" // for RotatedContentBuffer, etc
+#include "BasicImplData.h" // for BasicImplData
+#include "BasicLayers.h" // for BasicLayerManager
+#include "gfxPoint.h" // for gfxPoint
+#include "mozilla/RefPtr.h" // for RefPtr
+#include "mozilla/gfx/BasePoint.h" // for BasePoint
+#include "mozilla/layers/ContentClient.h" // for ContentClientBasic
+#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
+class gfxContext;
+
+namespace mozilla {
+namespace layers {
+
+class ReadbackProcessor;
+
+class BasicPaintedLayer : public PaintedLayer, public BasicImplData {
+public:
+ typedef RotatedContentBuffer::PaintState PaintState;
+ typedef RotatedContentBuffer::ContentType ContentType;
+
+ explicit BasicPaintedLayer(BasicLayerManager* aLayerManager, gfx::BackendType aBackend) :
+ PaintedLayer(aLayerManager, static_cast<BasicImplData*>(this)),
+ mContentClient(nullptr)
+ , mBackend(aBackend)
+ {
+ MOZ_COUNT_CTOR(BasicPaintedLayer);
+ }
+
+protected:
+ virtual ~BasicPaintedLayer()
+ {
+ MOZ_COUNT_DTOR(BasicPaintedLayer);
+ }
+
+public:
+ virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override
+ {
+ NS_ASSERTION(BasicManager()->InConstruction(),
+ "Can only set properties in construction phase");
+ PaintedLayer::SetVisibleRegion(aRegion);
+ }
+ virtual void InvalidateRegion(const nsIntRegion& aRegion) override
+ {
+ NS_ASSERTION(BasicManager()->InConstruction(),
+ "Can only set properties in construction phase");
+ mInvalidRegion.Add(aRegion);
+ mValidRegion.Sub(mValidRegion, mInvalidRegion.GetRegion());
+ }
+
+ virtual void PaintThebes(gfxContext* aContext,
+ Layer* aMaskLayer,
+ LayerManager::DrawPaintedLayerCallback aCallback,
+ void* aCallbackData) override;
+
+ virtual void Validate(LayerManager::DrawPaintedLayerCallback aCallback,
+ void* aCallbackData,
+ ReadbackProcessor* aReadback) override;
+
+ virtual void ClearCachedResources() override
+ {
+ if (mContentClient) {
+ mContentClient->Clear();
+ }
+ mValidRegion.SetEmpty();
+ }
+
+ virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) override
+ {
+ if (!BasicManager()->IsRetained()) {
+ // Don't do any snapping of our transform, since we're just going to
+ // draw straight through without intermediate buffers.
+ mEffectiveTransform = GetLocalTransform() * aTransformToSurface;
+ if (gfxPoint(0,0) != mResidualTranslation) {
+ mResidualTranslation = gfxPoint(0,0);
+ mValidRegion.SetEmpty();
+ }
+ ComputeEffectiveTransformForMaskLayers(aTransformToSurface);
+ return;
+ }
+ PaintedLayer::ComputeEffectiveTransforms(aTransformToSurface);
+ }
+
+ BasicLayerManager* BasicManager()
+ {
+ return static_cast<BasicLayerManager*>(mManager);
+ }
+
+protected:
+ virtual void
+ PaintBuffer(gfxContext* aContext,
+ const nsIntRegion& aRegionToDraw,
+ const nsIntRegion& aExtendedRegionToDraw,
+ const nsIntRegion& aRegionToInvalidate,
+ bool aDidSelfCopy,
+ DrawRegionClip aClip,
+ LayerManager::DrawPaintedLayerCallback aCallback,
+ void* aCallbackData)
+ {
+ if (!aCallback) {
+ BasicManager()->SetTransactionIncomplete();
+ return;
+ }
+ aCallback(this, aContext, aExtendedRegionToDraw, aExtendedRegionToDraw,
+ aClip, aRegionToInvalidate, aCallbackData);
+ // Everything that's visible has been validated. Do this instead of just
+ // OR-ing with aRegionToDraw, since that can lead to a very complex region
+ // here (OR doesn't automatically simplify to the simplest possible
+ // representation of a region.)
+ nsIntRegion tmp;
+ tmp.Or(mVisibleRegion.ToUnknownRegion(), aExtendedRegionToDraw);
+ mValidRegion.Or(mValidRegion, tmp);
+ }
+
+ RefPtr<ContentClientBasic> mContentClient;
+ gfx::BackendType mBackend;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif