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diff --git a/gfx/2d/DrawTargetCapture.h b/gfx/2d/DrawTargetCapture.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 MOZILLA_GFX_DRAWTARGETCAPTURE_H_
+#define MOZILLA_GFX_DRAWTARGETCAPTURE_H_
+
+#include "2D.h"
+#include <vector>
+
+#include "Filters.h"
+
+namespace mozilla {
+namespace gfx {
+
+class DrawingCommand;
+
+class DrawTargetCaptureImpl : public DrawTargetCapture
+{
+public:
+ DrawTargetCaptureImpl()
+ {}
+
+ bool Init(const IntSize& aSize, DrawTarget* aRefDT);
+
+ virtual BackendType GetBackendType() const { return mRefDT->GetBackendType(); }
+ virtual DrawTargetType GetType() const { return mRefDT->GetType(); }
+
+ virtual already_AddRefed<SourceSurface> Snapshot();
+
+ virtual void DetachAllSnapshots();
+
+ virtual IntSize GetSize() { return mSize; }
+
+ virtual void Flush() {}
+ virtual void DrawSurface(SourceSurface *aSurface,
+ const Rect &aDest,
+ const Rect &aSource,
+ const DrawSurfaceOptions &aSurfOptions,
+ const DrawOptions &aOptions);
+ virtual void DrawFilter(FilterNode *aNode,
+ const Rect &aSourceRect,
+ const Point &aDestPoint,
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
+ const Point &aDest,
+ const Color &aColor,
+ const Point &aOffset,
+ Float aSigma,
+ CompositionOp aOperator) { /* Not implemented */ }
+
+ virtual void ClearRect(const Rect &aRect);
+ virtual void MaskSurface(const Pattern &aSource,
+ SourceSurface *aMask,
+ Point aOffset,
+ const DrawOptions &aOptions = DrawOptions());
+
+ virtual void CopySurface(SourceSurface *aSurface,
+ const IntRect &aSourceRect,
+ const IntPoint &aDestination);
+
+ virtual void FillRect(const Rect &aRect,
+ const Pattern &aPattern,
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void StrokeRect(const Rect &aRect,
+ const Pattern &aPattern,
+ const StrokeOptions &aStrokeOptions = StrokeOptions(),
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void StrokeLine(const Point &aStart,
+ const Point &aEnd,
+ const Pattern &aPattern,
+ const StrokeOptions &aStrokeOptions = StrokeOptions(),
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void Stroke(const Path *aPath,
+ const Pattern &aPattern,
+ const StrokeOptions &aStrokeOptions = StrokeOptions(),
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void Fill(const Path *aPath,
+ const Pattern &aPattern,
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void FillGlyphs(ScaledFont *aFont,
+ const GlyphBuffer &aBuffer,
+ const Pattern &aPattern,
+ const DrawOptions &aOptions = DrawOptions(),
+ const GlyphRenderingOptions *aRenderingOptions = nullptr);
+ virtual void Mask(const Pattern &aSource,
+ const Pattern &aMask,
+ const DrawOptions &aOptions = DrawOptions());
+ virtual void PushClip(const Path *aPath);
+ virtual void PushClipRect(const Rect &aRect);
+ virtual void PopClip();
+
+ virtual void SetTransform(const Matrix &aTransform);
+
+ virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
+ const IntSize &aSize,
+ int32_t aStride,
+ SurfaceFormat aFormat) const
+ {
+ return mRefDT->CreateSourceSurfaceFromData(aData, aSize, aStride, aFormat);
+ }
+ virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const
+ {
+ return mRefDT->OptimizeSourceSurface(aSurface);
+ }
+
+ virtual already_AddRefed<SourceSurface>
+ CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
+ {
+ return mRefDT->CreateSourceSurfaceFromNativeSurface(aSurface);
+ }
+
+ virtual already_AddRefed<DrawTarget>
+ CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
+ {
+ return mRefDT->CreateSimilarDrawTarget(aSize, aFormat);
+ }
+
+ virtual already_AddRefed<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const
+ {
+ return mRefDT->CreatePathBuilder(aFillRule);
+ }
+
+ virtual already_AddRefed<GradientStops>
+ CreateGradientStops(GradientStop *aStops,
+ uint32_t aNumStops,
+ ExtendMode aExtendMode = ExtendMode::CLAMP) const
+ {
+ return mRefDT->CreateGradientStops(aStops, aNumStops, aExtendMode);
+ }
+ virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType)
+ {
+ return mRefDT->CreateFilter(aType);
+ }
+
+ void ReplayToDrawTarget(DrawTarget* aDT, const Matrix& aTransform);
+
+protected:
+ ~DrawTargetCaptureImpl();
+
+private:
+
+ // This storage system was used to minimize the amount of heap allocations
+ // that are required while recording. It should be noted there's no
+ // guarantees on the alignments of DrawingCommands allocated in this array.
+ template<typename T>
+ T* AppendToCommandList()
+ {
+ size_t oldSize = mDrawCommandStorage.size();
+ mDrawCommandStorage.resize(mDrawCommandStorage.size() + sizeof(T) + sizeof(uint32_t));
+ uint8_t* nextDrawLocation = &mDrawCommandStorage.front() + oldSize;
+ *(uint32_t*)(nextDrawLocation) = sizeof(T) + sizeof(uint32_t);
+ return reinterpret_cast<T*>(nextDrawLocation + sizeof(uint32_t));
+ }
+ RefPtr<DrawTarget> mRefDT;
+
+ IntSize mSize;
+
+ std::vector<uint8_t> mDrawCommandStorage;
+};
+
+} // namespace gfx
+
+} // namespace mozilla
+
+
+#endif /* MOZILLA_GFX_DRAWTARGETCAPTURE_H_ */