1 files changed, 1281 insertions, 0 deletions
diff --git a/gfx/2d/RecordedEvent.h b/gfx/2d/RecordedEvent.h
new file mode 100644
index 0000000000..bf660ba243
--- /dev/null
+++ b/gfx/2d/RecordedEvent.h
@@ -0,0 +1,1281 @@
+/* -*- 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 MOZILLA_GFX_RECORDEDEVENT_H_
+#define MOZILLA_GFX_RECORDEDEVENT_H_
+
+#include "2D.h"
+#include <ostream>
+#include <sstream>
+#include <cstring>
+#include <vector>
+
+namespace mozilla {
+namespace gfx {
+
+struct PathOp;
+class PathRecording;
+
+const uint32_t kMagicInt = 0xc001feed;
+
+// A change in major revision means a change in event binary format, causing
+// loss of backwards compatibility. Old streams will not work in a player
+// using a newer major revision. And new streams will not work in a player
+// using an older major revision.
+const uint16_t kMajorRevision = 6;
+// A change in minor revision means additions of new events. New streams will
+// not play in older players.
+const uint16_t kMinorRevision = 0;
+
+struct ReferencePtr
+{
+  ReferencePtr()
+    : mLongPtr(0)
+  {}
+
+  MOZ_IMPLICIT ReferencePtr(const void* aLongPtr)
+    : mLongPtr(uint64_t(aLongPtr))
+  {}
+
+  template <typename T>
+  MOZ_IMPLICIT ReferencePtr(const RefPtr<T>& aPtr)
+    : mLongPtr(uint64_t(aPtr.get()))
+  {}
+
+  ReferencePtr &operator =(const void* aLongPtr) {
+    mLongPtr = uint64_t(aLongPtr);
+    return *this;
+  }
+
+  template <typename T>
+  ReferencePtr &operator =(const RefPtr<T>& aPtr) {
+    mLongPtr = uint64_t(aPtr.get());
+    return *this;
+  }
+
+  operator void*() const {
+    return (void*)mLongPtr;
+  }
+
+  uint64_t mLongPtr;
+};
+
+struct RecordedFontDetails
+{
+  uint64_t fontDataKey;
+  uint32_t size;
+  uint32_t index;
+  Float glyphSize;
+};
+
+// Used by the Azure drawing debugger (player2d)
+inline std::string StringFromPtr(ReferencePtr aPtr)
+{
+  std::stringstream stream;
+  stream << aPtr;
+  return stream.str();
+}
+
+class Translator
+{
+public:
+  virtual ~Translator() {}
+
+  virtual DrawTarget *LookupDrawTarget(ReferencePtr aRefPtr) = 0;
+  virtual Path *LookupPath(ReferencePtr aRefPtr) = 0;
+  virtual SourceSurface *LookupSourceSurface(ReferencePtr aRefPtr) = 0;
+  virtual FilterNode *LookupFilterNode(ReferencePtr aRefPtr) = 0;
+  virtual GradientStops *LookupGradientStops(ReferencePtr aRefPtr) = 0;
+  virtual ScaledFont *LookupScaledFont(ReferencePtr aRefPtr) = 0;
+  virtual NativeFontResource *LookupNativeFontResource(uint64_t aKey) = 0;
+  virtual void AddDrawTarget(ReferencePtr aRefPtr, DrawTarget *aDT) = 0;
+  virtual void RemoveDrawTarget(ReferencePtr aRefPtr) = 0;
+  virtual void AddPath(ReferencePtr aRefPtr, Path *aPath) = 0;
+  virtual void RemovePath(ReferencePtr aRefPtr) = 0;
+  virtual void AddSourceSurface(ReferencePtr aRefPtr, SourceSurface *aPath) = 0;
+  virtual void RemoveSourceSurface(ReferencePtr aRefPtr) = 0;
+  virtual void AddFilterNode(mozilla::gfx::ReferencePtr aRefPtr, FilterNode *aSurface) = 0;
+  virtual void RemoveFilterNode(mozilla::gfx::ReferencePtr aRefPtr) = 0;
+  virtual void AddGradientStops(ReferencePtr aRefPtr, GradientStops *aPath) = 0;
+  virtual void RemoveGradientStops(ReferencePtr aRefPtr) = 0;
+  virtual void AddScaledFont(ReferencePtr aRefPtr, ScaledFont *aScaledFont) = 0;
+  virtual void RemoveScaledFont(ReferencePtr aRefPtr) = 0;
+  virtual void AddNativeFontResource(uint64_t aKey,
+                                     NativeFontResource *aNativeFontResource) = 0;
+
+  virtual already_AddRefed<DrawTarget> CreateDrawTarget(ReferencePtr aRefPtr,
+                                                        const IntSize &aSize,
+                                                        SurfaceFormat aFormat);
+  virtual DrawTarget *GetReferenceDrawTarget() = 0;
+  virtual FontType GetDesiredFontType() = 0;
+};
+
+struct ColorPatternStorage
+{
+  Color mColor;
+};
+
+struct LinearGradientPatternStorage
+{
+  Point mBegin;
+  Point mEnd;
+  ReferencePtr mStops;
+  Matrix mMatrix;
+};
+
+struct RadialGradientPatternStorage
+{
+  Point mCenter1;
+  Point mCenter2;
+  Float mRadius1;
+  Float mRadius2;
+  ReferencePtr mStops;
+  Matrix mMatrix;
+};
+
+struct SurfacePatternStorage
+{
+  ExtendMode mExtend;
+  SamplingFilter mSamplingFilter;
+  ReferencePtr mSurface;
+  Matrix mMatrix;
+  IntRect mSamplingRect;
+};
+
+struct PatternStorage
+{
+  PatternType mType;
+  union {
+    char *mStorage;
+    char mColor[sizeof(ColorPatternStorage)];
+    char mLinear[sizeof(LinearGradientPatternStorage)];
+    char mRadial[sizeof(RadialGradientPatternStorage)];
+    char mSurface[sizeof(SurfacePatternStorage)];
+  };
+};
+
+class RecordedEvent {
+public:
+  enum EventType {
+    DRAWTARGETCREATION = 0,
+    DRAWTARGETDESTRUCTION,
+    FILLRECT,
+    STROKERECT,
+    STROKELINE,
+    CLEARRECT,
+    COPYSURFACE,
+    SETTRANSFORM,
+    PUSHCLIP,
+    PUSHCLIPRECT,
+    POPCLIP,
+    FILL,
+    FILLGLYPHS,
+    MASK,
+    STROKE,
+    DRAWSURFACE,
+    DRAWSURFACEWITHSHADOW,
+    PATHCREATION,
+    PATHDESTRUCTION,
+    SOURCESURFACECREATION,
+    SOURCESURFACEDESTRUCTION,
+    GRADIENTSTOPSCREATION,
+    GRADIENTSTOPSDESTRUCTION,
+    SNAPSHOT,
+    SCALEDFONTCREATION,
+    SCALEDFONTDESTRUCTION,
+    MASKSURFACE,
+    FILTERNODECREATION,
+    FILTERNODEDESTRUCTION,
+    DRAWFILTER,
+    FILTERNODESETATTRIBUTE,
+    FILTERNODESETINPUT,
+    CREATESIMILARDRAWTARGET,
+    FONTDATA,
+    FONTDESC,
+    PUSHLAYER,
+    POPLAYER,
+  };
+  static const uint32_t kTotalEventTypes = RecordedEvent::FILTERNODESETINPUT + 1;
+
+  virtual ~RecordedEvent() {}
+
+  static std::string GetEventName(EventType aType);
+
+  /**
+   * Play back this event using the translator. Note that derived classes should
+   * only return false when there is a fatal error, as it will probably mean the
+   * translation will abort.
+   * @param aTranslator Translator to be used for retrieving other referenced
+   *                    objects and making playback decisions.
+   * @return true unless a fatal problem has occurred and playback should abort.
+   */
+  virtual bool PlayEvent(Translator *aTranslator) const { return true; }
+
+  virtual void RecordToStream(std::ostream &aStream) const {}
+
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const { }
+
+  void RecordPatternData(std::ostream &aStream, const PatternStorage &aPatternStorage) const;
+  void ReadPatternData(std::istream &aStream, PatternStorage &aPatternStorage) const;
+  void StorePattern(PatternStorage &aDestination, const Pattern &aSource) const;
+  void RecordStrokeOptions(std::ostream &aStream, const StrokeOptions &aStrokeOptions) const;
+  void ReadStrokeOptions(std::istream &aStream, StrokeOptions &aStrokeOptions);
+
+  virtual std::string GetName() const = 0;
+
+  virtual ReferencePtr GetObjectRef() const = 0;
+
+  virtual ReferencePtr GetDestinedDT() { return nullptr; }
+
+  void OutputSimplePatternInfo(const PatternStorage &aStorage, std::stringstream &aOutput) const;
+
+  static RecordedEvent *LoadEventFromStream(std::istream &aStream, EventType aType);
+
+  EventType GetType() { return (EventType)mType; }
+protected:
+  friend class DrawEventRecorderPrivate;
+
+  MOZ_IMPLICIT RecordedEvent(int32_t aType) : mType(aType)
+  {}
+
+  int32_t mType;
+  std::vector<Float> mDashPatternStorage;
+};
+
+class RecordedDrawingEvent : public RecordedEvent
+{
+public:
+   virtual ReferencePtr GetDestinedDT() { return mDT; }
+
+protected:
+  RecordedDrawingEvent(EventType aType, DrawTarget *aTarget)
+    : RecordedEvent(aType), mDT(aTarget)
+  {
+  }
+
+  RecordedDrawingEvent(EventType aType, std::istream &aStream);
+  virtual void RecordToStream(std::ostream &aStream) const;
+
+  virtual ReferencePtr GetObjectRef() const;
+
+  ReferencePtr mDT;
+};
+
+class RecordedDrawTargetCreation : public RecordedEvent {
+public:
+  RecordedDrawTargetCreation(ReferencePtr aRefPtr, BackendType aType, const IntSize &aSize, SurfaceFormat aFormat,
+                             bool aHasExistingData = false, SourceSurface *aExistingData = nullptr)
+    : RecordedEvent(DRAWTARGETCREATION), mRefPtr(aRefPtr), mBackendType(aType), mSize(aSize), mFormat(aFormat)
+    , mHasExistingData(aHasExistingData), mExistingData(aExistingData)
+  {}
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "DrawTarget Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+
+  ReferencePtr mRefPtr;
+  BackendType mBackendType;
+  IntSize mSize;
+  SurfaceFormat mFormat;
+  bool mHasExistingData;
+  RefPtr<SourceSurface> mExistingData;
+  
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedDrawTargetCreation(std::istream &aStream);
+};
+
+class RecordedDrawTargetDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedDrawTargetDestruction(ReferencePtr aRefPtr)
+    : RecordedEvent(DRAWTARGETDESTRUCTION), mRefPtr(aRefPtr)
+  {}
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "DrawTarget Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+
+  ReferencePtr mRefPtr;
+
+  BackendType mBackendType;
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedDrawTargetDestruction(std::istream &aStream);
+};
+
+class RecordedCreateSimilarDrawTarget : public RecordedEvent
+{
+public:
+  RecordedCreateSimilarDrawTarget(ReferencePtr aRefPtr, const IntSize &aSize,
+                                  SurfaceFormat aFormat)
+    : RecordedEvent(CREATESIMILARDRAWTARGET)
+    , mRefPtr(aRefPtr) , mSize(aSize), mFormat(aFormat)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "CreateSimilarDrawTarget"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+
+  ReferencePtr mRefPtr;
+  IntSize mSize;
+  SurfaceFormat mFormat;
+
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedCreateSimilarDrawTarget(std::istream &aStream);
+};
+
+class RecordedFillRect : public RecordedDrawingEvent {
+public:
+  RecordedFillRect(DrawTarget *aDT, const Rect &aRect, const Pattern &aPattern, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(FILLRECT, aDT), mRect(aRect), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "FillRect"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedFillRect(std::istream &aStream);
+
+  Rect mRect;
+  PatternStorage mPattern;
+  DrawOptions mOptions;
+};
+
+class RecordedStrokeRect : public RecordedDrawingEvent {
+public:
+  RecordedStrokeRect(DrawTarget *aDT, const Rect &aRect, const Pattern &aPattern,
+                     const StrokeOptions &aStrokeOptions, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(STROKERECT, aDT), mRect(aRect),
+      mStrokeOptions(aStrokeOptions), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "StrokeRect"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedStrokeRect(std::istream &aStream);
+
+  Rect mRect;
+  PatternStorage mPattern;
+  StrokeOptions mStrokeOptions;
+  DrawOptions mOptions;
+};
+
+class RecordedStrokeLine : public RecordedDrawingEvent {
+public:
+  RecordedStrokeLine(DrawTarget *aDT, const Point &aBegin, const Point &aEnd,
+                     const Pattern &aPattern, const StrokeOptions &aStrokeOptions,
+                     const DrawOptions &aOptions)
+    : RecordedDrawingEvent(STROKELINE, aDT), mBegin(aBegin), mEnd(aEnd),
+      mStrokeOptions(aStrokeOptions), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "StrokeLine"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedStrokeLine(std::istream &aStream);
+
+  Point mBegin;
+  Point mEnd;
+  PatternStorage mPattern;
+  StrokeOptions mStrokeOptions;
+  DrawOptions mOptions;
+};
+
+class RecordedFill : public RecordedDrawingEvent {
+public:
+  RecordedFill(DrawTarget *aDT, ReferencePtr aPath, const Pattern &aPattern, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(FILL, aDT), mPath(aPath), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "Fill"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedFill(std::istream &aStream);
+
+  ReferencePtr mPath;
+  PatternStorage mPattern;
+  DrawOptions mOptions;
+};
+
+class RecordedFillGlyphs : public RecordedDrawingEvent {
+public:
+  RecordedFillGlyphs(DrawTarget *aDT, ReferencePtr aScaledFont, const Pattern &aPattern, const DrawOptions &aOptions,
+                     const Glyph *aGlyphs, uint32_t aNumGlyphs)
+    : RecordedDrawingEvent(FILLGLYPHS, aDT), mScaledFont(aScaledFont), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+    mNumGlyphs = aNumGlyphs;
+    mGlyphs = new Glyph[aNumGlyphs];
+    memcpy(mGlyphs, aGlyphs, sizeof(Glyph) * aNumGlyphs);
+  }
+  virtual ~RecordedFillGlyphs();
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "FillGlyphs"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedFillGlyphs(std::istream &aStream);
+
+  ReferencePtr mScaledFont;
+  PatternStorage mPattern;
+  DrawOptions mOptions;
+  Glyph *mGlyphs;
+  uint32_t mNumGlyphs;
+};
+
+class RecordedMask : public RecordedDrawingEvent {
+public:
+  RecordedMask(DrawTarget *aDT, const Pattern &aSource, const Pattern &aMask, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(MASK, aDT), mOptions(aOptions)
+  {
+    StorePattern(mSource, aSource);
+    StorePattern(mMask, aMask);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "Mask"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedMask(std::istream &aStream);
+
+  PatternStorage mSource;
+  PatternStorage mMask;
+  DrawOptions mOptions;
+};
+
+class RecordedStroke : public RecordedDrawingEvent {
+public:
+  RecordedStroke(DrawTarget *aDT, ReferencePtr aPath, const Pattern &aPattern,
+                     const StrokeOptions &aStrokeOptions, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(STROKE, aDT), mPath(aPath),
+      mStrokeOptions(aStrokeOptions), mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "Stroke"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedStroke(std::istream &aStream);
+
+  ReferencePtr mPath;
+  PatternStorage mPattern;
+  StrokeOptions mStrokeOptions;
+  DrawOptions mOptions;
+};
+
+class RecordedClearRect : public RecordedDrawingEvent {
+public:
+  RecordedClearRect(DrawTarget *aDT, const Rect &aRect)
+    : RecordedDrawingEvent(CLEARRECT, aDT), mRect(aRect)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "ClearRect"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedClearRect(std::istream &aStream);
+
+  Rect mRect;
+};
+
+class RecordedCopySurface : public RecordedDrawingEvent {
+public:
+  RecordedCopySurface(DrawTarget *aDT, ReferencePtr aSourceSurface,
+                      const IntRect &aSourceRect, const IntPoint &aDest)
+    : RecordedDrawingEvent(COPYSURFACE, aDT), mSourceSurface(aSourceSurface),
+	  mSourceRect(aSourceRect), mDest(aDest)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "CopySurface"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedCopySurface(std::istream &aStream);
+
+  ReferencePtr mSourceSurface;
+  IntRect mSourceRect;
+  IntPoint mDest;
+};
+
+class RecordedPushClip : public RecordedDrawingEvent {
+public:
+  RecordedPushClip(DrawTarget *aDT, ReferencePtr aPath)
+    : RecordedDrawingEvent(PUSHCLIP, aDT), mPath(aPath)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "PushClip"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedPushClip(std::istream &aStream);
+
+  ReferencePtr mPath;
+};
+
+class RecordedPushClipRect : public RecordedDrawingEvent {
+public:
+  RecordedPushClipRect(DrawTarget *aDT, const Rect &aRect)
+    : RecordedDrawingEvent(PUSHCLIPRECT, aDT), mRect(aRect)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "PushClipRect"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedPushClipRect(std::istream &aStream);
+
+  Rect mRect;
+};
+
+class RecordedPopClip : public RecordedDrawingEvent {
+public:
+  MOZ_IMPLICIT RecordedPopClip(DrawTarget *aDT)
+    : RecordedDrawingEvent(POPCLIP, aDT)
+  {}
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "PopClip"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedPopClip(std::istream &aStream);
+};
+
+class RecordedPushLayer : public RecordedDrawingEvent {
+public:
+  RecordedPushLayer(DrawTarget* aDT, bool aOpaque, Float aOpacity,
+                    SourceSurface* aMask, const Matrix& aMaskTransform,
+                    const IntRect& aBounds, bool aCopyBackground)
+    : RecordedDrawingEvent(PUSHLAYER, aDT), mOpaque(aOpaque)
+    , mOpacity(aOpacity), mMask(aMask), mMaskTransform(aMaskTransform)
+    , mBounds(aBounds), mCopyBackground(aCopyBackground)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "PushLayer"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedPushLayer(std::istream &aStream);
+
+  bool mOpaque;
+  Float mOpacity;
+  ReferencePtr mMask;
+  Matrix mMaskTransform;
+  IntRect mBounds;
+  bool mCopyBackground;
+};
+
+class RecordedPopLayer : public RecordedDrawingEvent {
+public:
+  MOZ_IMPLICIT RecordedPopLayer(DrawTarget* aDT)
+    : RecordedDrawingEvent(POPLAYER, aDT)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "PopLayer"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedPopLayer(std::istream &aStream);
+};
+
+class RecordedSetTransform : public RecordedDrawingEvent {
+public:
+  RecordedSetTransform(DrawTarget *aDT, const Matrix &aTransform)
+    : RecordedDrawingEvent(SETTRANSFORM, aDT), mTransform(aTransform)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "SetTransform"; }
+private:
+  friend class RecordedEvent;
+
+   MOZ_IMPLICIT RecordedSetTransform(std::istream &aStream);
+
+  Matrix mTransform;
+};
+
+class RecordedDrawSurface : public RecordedDrawingEvent {
+public:
+  RecordedDrawSurface(DrawTarget *aDT, ReferencePtr aRefSource, const Rect &aDest,
+                      const Rect &aSource, const DrawSurfaceOptions &aDSOptions,
+                      const DrawOptions &aOptions)
+    : RecordedDrawingEvent(DRAWSURFACE, aDT), mRefSource(aRefSource), mDest(aDest)
+    , mSource(aSource), mDSOptions(aDSOptions), mOptions(aOptions)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "DrawSurface"; }
+private:
+  friend class RecordedEvent;
+
+   MOZ_IMPLICIT RecordedDrawSurface(std::istream &aStream);
+
+  ReferencePtr mRefSource;
+  Rect mDest;
+  Rect mSource;
+  DrawSurfaceOptions mDSOptions;
+  DrawOptions mOptions;
+};
+
+class RecordedDrawSurfaceWithShadow : public RecordedDrawingEvent {
+public:
+  RecordedDrawSurfaceWithShadow(DrawTarget *aDT, ReferencePtr aRefSource, const Point &aDest,
+                                const Color &aColor, const Point &aOffset,
+                                Float aSigma, CompositionOp aOp)
+    : RecordedDrawingEvent(DRAWSURFACEWITHSHADOW, aDT), mRefSource(aRefSource), mDest(aDest)
+    , mColor(aColor), mOffset(aOffset), mSigma(aSigma), mOp(aOp)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "DrawSurfaceWithShadow"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedDrawSurfaceWithShadow(std::istream &aStream);
+
+  ReferencePtr mRefSource;
+  Point mDest;
+  Color mColor;
+  Point mOffset;
+  Float mSigma;
+  CompositionOp mOp;
+};
+
+class RecordedDrawFilter : public RecordedDrawingEvent {
+public:
+  RecordedDrawFilter(DrawTarget *aDT, ReferencePtr aNode,
+                     const Rect &aSourceRect,
+                     const Point &aDestPoint,
+                     const DrawOptions &aOptions)
+    : RecordedDrawingEvent(DRAWFILTER, aDT), mNode(aNode), mSourceRect(aSourceRect)
+    , mDestPoint(aDestPoint), mOptions(aOptions)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "DrawFilter"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedDrawFilter(std::istream &aStream);
+
+  ReferencePtr mNode;
+  Rect mSourceRect;
+  Point mDestPoint;
+  DrawOptions mOptions;
+};
+
+class RecordedPathCreation : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedPathCreation(PathRecording *aPath);
+  ~RecordedPathCreation();
+  
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "Path Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  FillRule mFillRule;
+  std::vector<PathOp> mPathOps;
+
+  MOZ_IMPLICIT RecordedPathCreation(std::istream &aStream);
+};
+
+class RecordedPathDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedPathDestruction(PathRecording *aPath)
+    : RecordedEvent(PATHDESTRUCTION), mRefPtr(aPath)
+  {
+  }
+  
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "Path Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedPathDestruction(std::istream &aStream);
+};
+
+class RecordedSourceSurfaceCreation : public RecordedEvent {
+public:
+  RecordedSourceSurfaceCreation(ReferencePtr aRefPtr, uint8_t *aData, int32_t aStride,
+                                const IntSize &aSize, SurfaceFormat aFormat)
+    : RecordedEvent(SOURCESURFACECREATION), mRefPtr(aRefPtr), mData(aData)
+    , mStride(aStride), mSize(aSize), mFormat(aFormat), mDataOwned(false)
+  {
+  }
+
+  ~RecordedSourceSurfaceCreation();
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "SourceSurface Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  uint8_t *mData;
+  int32_t mStride;
+  IntSize mSize;
+  SurfaceFormat mFormat;
+  bool mDataOwned;
+
+  MOZ_IMPLICIT RecordedSourceSurfaceCreation(std::istream &aStream);
+};
+
+class RecordedSourceSurfaceDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedSourceSurfaceDestruction(ReferencePtr aRefPtr)
+    : RecordedEvent(SOURCESURFACEDESTRUCTION), mRefPtr(aRefPtr)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "SourceSurface Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedSourceSurfaceDestruction(std::istream &aStream);
+};
+
+class RecordedFilterNodeCreation : public RecordedEvent {
+public:
+  RecordedFilterNodeCreation(ReferencePtr aRefPtr, FilterType aType)
+    : RecordedEvent(FILTERNODECREATION), mRefPtr(aRefPtr), mType(aType)
+  {
+  }
+
+  ~RecordedFilterNodeCreation();
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "FilterNode Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  FilterType mType;
+
+  MOZ_IMPLICIT RecordedFilterNodeCreation(std::istream &aStream);
+};
+
+class RecordedFilterNodeDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedFilterNodeDestruction(ReferencePtr aRefPtr)
+    : RecordedEvent(FILTERNODEDESTRUCTION), mRefPtr(aRefPtr)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "FilterNode Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedFilterNodeDestruction(std::istream &aStream);
+};
+
+class RecordedGradientStopsCreation : public RecordedEvent {
+public:
+  RecordedGradientStopsCreation(ReferencePtr aRefPtr, GradientStop *aStops,
+                                uint32_t aNumStops, ExtendMode aExtendMode)
+    : RecordedEvent(GRADIENTSTOPSCREATION), mRefPtr(aRefPtr), mStops(aStops)
+    , mNumStops(aNumStops), mExtendMode(aExtendMode), mDataOwned(false)
+  {
+  }
+
+  ~RecordedGradientStopsCreation();
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "GradientStops Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  GradientStop *mStops;
+  uint32_t mNumStops;
+  ExtendMode mExtendMode;
+  bool mDataOwned;
+
+  MOZ_IMPLICIT RecordedGradientStopsCreation(std::istream &aStream);
+};
+
+class RecordedGradientStopsDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedGradientStopsDestruction(ReferencePtr aRefPtr)
+    : RecordedEvent(GRADIENTSTOPSDESTRUCTION), mRefPtr(aRefPtr)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "GradientStops Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedGradientStopsDestruction(std::istream &aStream);
+};
+
+class RecordedSnapshot : public RecordedEvent {
+public:
+  RecordedSnapshot(ReferencePtr aRefPtr, DrawTarget *aDT)
+    : RecordedEvent(SNAPSHOT), mRefPtr(aRefPtr), mDT(aDT)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "Snapshot"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  ReferencePtr mDT;
+
+  MOZ_IMPLICIT RecordedSnapshot(std::istream &aStream);
+};
+
+class RecordedFontData : public RecordedEvent {
+public:
+
+  static void FontDataProc(const uint8_t *aData, uint32_t aSize,
+                           uint32_t aIndex, Float aGlyphSize, void* aBaton)
+  {
+    auto recordedFontData = static_cast<RecordedFontData*>(aBaton);
+    recordedFontData->SetFontData(aData, aSize, aIndex, aGlyphSize);
+  }
+
+  explicit RecordedFontData(ScaledFont *aScaledFont)
+    : RecordedEvent(FONTDATA), mData(nullptr)
+  {
+    mGetFontFileDataSucceeded = aScaledFont->GetFontFileData(&FontDataProc, this);
+  }
+
+  ~RecordedFontData();
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "Font Data"; }
+  virtual ReferencePtr GetObjectRef() const { return nullptr; };
+
+  void SetFontData(const uint8_t *aData, uint32_t aSize, uint32_t aIndex,
+                   Float aGlyphSize);
+
+  bool GetFontDetails(RecordedFontDetails& fontDetails);
+
+private:
+  friend class RecordedEvent;
+
+  uint8_t *mData;
+  RecordedFontDetails mFontDetails;
+
+  bool mGetFontFileDataSucceeded = false;
+
+  MOZ_IMPLICIT RecordedFontData(std::istream &aStream);
+};
+
+class RecordedFontDescriptor : public RecordedEvent {
+public:
+
+  static void FontDescCb(const uint8_t *aData, uint32_t aSize,
+                         Float aFontSize, void* aBaton)
+  {
+    auto recordedFontDesc = static_cast<RecordedFontDescriptor*>(aBaton);
+    recordedFontDesc->SetFontDescriptor(aData, aSize, aFontSize);
+  }
+
+  explicit RecordedFontDescriptor(ScaledFont* aScaledFont)
+    : RecordedEvent(FONTDESC)
+    , mType(aScaledFont->GetType())
+    , mRefPtr(aScaledFont)
+  {
+    mHasDesc = aScaledFont->GetFontDescriptor(FontDescCb, this);
+  }
+
+  ~RecordedFontDescriptor();
+
+  bool IsValid() const { return mHasDesc; }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "Font Desc"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+
+private:
+  friend class RecordedEvent;
+
+  void SetFontDescriptor(const uint8_t* aData, uint32_t aSize, Float aFontSize);
+
+  bool mHasDesc;
+
+  FontType mType;
+  Float mFontSize;
+  std::vector<uint8_t> mData;
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedFontDescriptor(std::istream &aStream);
+};
+
+class RecordedScaledFontCreation : public RecordedEvent {
+public:
+
+  static void FontInstanceDataProc(const uint8_t* aData, uint32_t aSize, void* aBaton)
+  {
+    auto recordedScaledFontCreation = static_cast<RecordedScaledFontCreation*>(aBaton);
+    recordedScaledFontCreation->SetFontInstanceData(aData, aSize);
+  }
+
+  RecordedScaledFontCreation(ScaledFont* aScaledFont,
+                             RecordedFontDetails aFontDetails)
+    : RecordedEvent(SCALEDFONTCREATION), mRefPtr(aScaledFont)
+    , mFontDataKey(aFontDetails.fontDataKey)
+    , mGlyphSize(aFontDetails.glyphSize) , mIndex(aFontDetails.index)
+  {
+    aScaledFont->GetFontInstanceData(FontInstanceDataProc, this);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "ScaledFont Creation"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+
+  void SetFontInstanceData(const uint8_t *aData, uint32_t aSize);
+
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+  uint64_t mFontDataKey;
+  Float mGlyphSize;
+  uint32_t mIndex;
+  std::vector<uint8_t> mInstanceData;
+
+  MOZ_IMPLICIT RecordedScaledFontCreation(std::istream &aStream);
+};
+
+class RecordedScaledFontDestruction : public RecordedEvent {
+public:
+  MOZ_IMPLICIT RecordedScaledFontDestruction(ReferencePtr aRefPtr)
+    : RecordedEvent(SCALEDFONTDESTRUCTION), mRefPtr(aRefPtr)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "ScaledFont Destruction"; }
+  virtual ReferencePtr GetObjectRef() const { return mRefPtr; }
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mRefPtr;
+
+  MOZ_IMPLICIT RecordedScaledFontDestruction(std::istream &aStream);
+};
+
+class RecordedMaskSurface : public RecordedDrawingEvent {
+public:
+  RecordedMaskSurface(DrawTarget *aDT, const Pattern &aPattern, ReferencePtr aRefMask,
+                      const Point &aOffset, const DrawOptions &aOptions)
+    : RecordedDrawingEvent(MASKSURFACE, aDT), mRefMask(aRefMask), mOffset(aOffset)
+    , mOptions(aOptions)
+  {
+    StorePattern(mPattern, aPattern);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+  
+  virtual std::string GetName() const { return "MaskSurface"; }
+private:
+  friend class RecordedEvent;
+
+  MOZ_IMPLICIT RecordedMaskSurface(std::istream &aStream);
+
+  PatternStorage mPattern;
+  ReferencePtr mRefMask;
+  Point mOffset;
+  DrawOptions mOptions;
+};
+
+class RecordedFilterNodeSetAttribute : public RecordedEvent
+{
+public:
+  enum ArgType {
+    ARGTYPE_UINT32,
+    ARGTYPE_BOOL,
+    ARGTYPE_FLOAT,
+    ARGTYPE_SIZE,
+    ARGTYPE_INTSIZE,
+    ARGTYPE_INTPOINT,
+    ARGTYPE_RECT,
+    ARGTYPE_INTRECT,
+    ARGTYPE_POINT,
+    ARGTYPE_MATRIX,
+    ARGTYPE_MATRIX5X4,
+    ARGTYPE_POINT3D,
+    ARGTYPE_COLOR,
+    ARGTYPE_FLOAT_ARRAY
+  };
+
+  template<typename T>
+  RecordedFilterNodeSetAttribute(FilterNode *aNode, uint32_t aIndex, T aArgument, ArgType aArgType)
+    : RecordedEvent(FILTERNODESETATTRIBUTE), mNode(aNode), mIndex(aIndex), mArgType(aArgType)
+  {
+    mPayload.resize(sizeof(T));
+    memcpy(&mPayload.front(), &aArgument, sizeof(T));
+  }
+
+  RecordedFilterNodeSetAttribute(FilterNode *aNode, uint32_t aIndex, const Float *aFloat, uint32_t aSize)
+    : RecordedEvent(FILTERNODESETATTRIBUTE), mNode(aNode), mIndex(aIndex), mArgType(ARGTYPE_FLOAT_ARRAY)
+  {
+    mPayload.resize(sizeof(Float) * aSize);
+    memcpy(&mPayload.front(), aFloat, sizeof(Float) * aSize);
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "SetAttribute"; }
+
+  virtual ReferencePtr GetObjectRef() const { return mNode; }
+
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mNode;
+
+  uint32_t mIndex;
+  ArgType mArgType;
+  std::vector<uint8_t> mPayload;
+
+  MOZ_IMPLICIT RecordedFilterNodeSetAttribute(std::istream &aStream);
+};
+
+class RecordedFilterNodeSetInput : public RecordedEvent
+{
+public:
+  RecordedFilterNodeSetInput(FilterNode* aNode, uint32_t aIndex, FilterNode* aInputNode)
+    : RecordedEvent(FILTERNODESETINPUT), mNode(aNode), mIndex(aIndex)
+    , mInputFilter(aInputNode), mInputSurface(nullptr)
+  {
+  }
+
+  RecordedFilterNodeSetInput(FilterNode *aNode, uint32_t aIndex, SourceSurface *aInputSurface)
+    : RecordedEvent(FILTERNODESETINPUT), mNode(aNode), mIndex(aIndex)
+    , mInputFilter(nullptr), mInputSurface(aInputSurface)
+  {
+  }
+
+  virtual bool PlayEvent(Translator *aTranslator) const;
+  virtual void RecordToStream(std::ostream &aStream) const;
+  virtual void OutputSimpleEventInfo(std::stringstream &aStringStream) const;
+
+  virtual std::string GetName() const { return "SetInput"; }
+
+  virtual ReferencePtr GetObjectRef() const { return mNode; }
+
+private:
+  friend class RecordedEvent;
+
+  ReferencePtr mNode;
+  uint32_t mIndex;
+  ReferencePtr mInputFilter;
+  ReferencePtr mInputSurface;
+
+  MOZ_IMPLICIT RecordedFilterNodeSetInput(std::istream &aStream);
+};
+
+} // namespace gfx
+} // namespace mozilla
+
+#endif