gecko-dev/gfx/2d/RecordedEvent.cpp

/* -*- 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/. */

#include "RecordedEventImpl.h"

#include "PathRecording.h"
#include "RecordingTypes.h"
#include "Tools.h"
#include "Filters.h"
#include "Logging.h"
#include "ScaledFontBase.h"
#include "SFNTData.h"

namespace mozilla {
namespace gfx {

using namespace std;

RecordedEvent *
RecordedEvent::LoadEventFromStream(std::istream &aStream, EventType aType) {
  return LoadEvent(aStream, aType);
}

RecordedEvent *
RecordedEvent::LoadEventFromStream(EventStream& aStream, EventType aType) {
  return LoadEvent(aStream, aType);
}

string
RecordedEvent::GetEventName(EventType aType)
{
  switch (aType) {
  case DRAWTARGETCREATION:
    return "DrawTarget Creation";
  case DRAWTARGETDESTRUCTION:
    return "DrawTarget Destruction";
  case FILLRECT:
    return "FillRect";
  case STROKERECT:
    return "StrokeRect";
  case STROKELINE:
    return "StrokeLine";
  case CLEARRECT:
    return "ClearRect";
  case COPYSURFACE:
    return "CopySurface";
  case SETTRANSFORM:
    return "SetTransform";
  case PUSHCLIP:
    return "PushClip";
  case PUSHCLIPRECT:
    return "PushClipRect";
  case POPCLIP:
    return "PopClip";
  case FILL:
    return "Fill";
  case FILLGLYPHS:
    return "FillGlyphs";
  case MASK:
    return "Mask";
  case STROKE:
    return "Stroke";
  case DRAWSURFACE:
    return "DrawSurface";
  case DRAWSURFACEWITHSHADOW:
    return "DrawSurfaceWithShadow";
  case DRAWFILTER:
    return "DrawFilter";
  case PATHCREATION:
    return "PathCreation";
  case PATHDESTRUCTION:
    return "PathDestruction";
  case SOURCESURFACECREATION:
    return "SourceSurfaceCreation";
  case SOURCESURFACEDESTRUCTION:
    return "SourceSurfaceDestruction";
  case FILTERNODECREATION:
    return "FilterNodeCreation";
  case FILTERNODEDESTRUCTION:
    return "FilterNodeDestruction";
  case GRADIENTSTOPSCREATION:
    return "GradientStopsCreation";
  case GRADIENTSTOPSDESTRUCTION:
    return "GradientStopsDestruction";
  case SNAPSHOT:
    return "Snapshot";
  case SCALEDFONTCREATION:
    return "ScaledFontCreation";
  case SCALEDFONTCREATIONBYINDEX:
    return "ScaledFontCreationByIndex";
  case SCALEDFONTDESTRUCTION:
    return "ScaledFontDestruction";
  case MASKSURFACE:
    return "MaskSurface";
  case FILTERNODESETATTRIBUTE:
    return "SetAttribute";
  case FILTERNODESETINPUT:
    return "SetInput";
  case CREATESIMILARDRAWTARGET:
    return "CreateSimilarDrawTarget";
  case FONTDATA:
    return "FontData";
  case FONTDESC:
    return "FontDescriptor";
  case PUSHLAYER:
    return "PushLayer";
  case POPLAYER:
    return "PopLayer";
  case UNSCALEDFONTCREATION:
    return "UnscaledFontCreation";
  case UNSCALEDFONTDESTRUCTION:
    return "UnscaledFontDestruction";
  default:
    return "Unknown";
  }
}

template<class S>
void RecordedEvent::RecordUnscaledFontImpl(UnscaledFont *aUnscaledFont, S& aOutput) {
  RecordedFontData fontData(aUnscaledFont);
  RecordedFontDetails fontDetails;
  if (fontData.GetFontDetails(fontDetails)) {
    // Try to serialise the whole font, just in case this is a web font that
    // is not present on the system.
    WriteElement(aOutput, fontData.mType);
    fontData.RecordToStream(aOutput);

    auto r = RecordedUnscaledFontCreation(aUnscaledFont, fontDetails);
    WriteElement(aOutput, r.mType);
    r.RecordToStream(aOutput);
  } else {
    // If that fails, record just the font description and try to load it from
    // the system on the other side.
    RecordedFontDescriptor fontDesc(aUnscaledFont);
    if (fontDesc.IsValid()) {
      WriteElement(aOutput, fontDesc.RecordedEvent::mType);
      fontDesc.RecordToStream(aOutput);
    } else {
      gfxWarning() << "DrawTargetRecording::FillGlyphs failed to serialise UnscaledFont";
    }
  }
}

void RecordedEvent::RecordUnscaledFont(UnscaledFont *aUnscaledFont, std::ostream *aOutput) {
  RecordUnscaledFontImpl(aUnscaledFont, *aOutput);
}

void RecordedEvent::RecordUnscaledFont(UnscaledFont *aUnscaledFont, MemStream &aOutput) {
  RecordUnscaledFontImpl(aUnscaledFont, aOutput);
}

already_AddRefed<DrawTarget>
Translator::CreateDrawTarget(ReferencePtr aRefPtr, const IntSize &aSize,
                             SurfaceFormat aFormat)
{
  RefPtr<DrawTarget> newDT =
    GetReferenceDrawTarget()->CreateSimilarDrawTarget(aSize, aFormat);
  AddDrawTarget(aRefPtr, newDT);
  return newDT.forget();
}

}
}