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

118 строки
2.1 KiB
C++

/* -*- 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 "DrawEventRecorder.h"
#include "PathRecording.h"
#include "RecordingTypes.h"
namespace mozilla {
namespace gfx {
using namespace std;
DrawEventRecorderPrivate::DrawEventRecorderPrivate(std::ostream *aStream)
: mOutputStream(aStream)
{
}
void
DrawEventRecorderPrivate::WriteHeader()
{
WriteElement(*mOutputStream, kMagicInt);
WriteElement(*mOutputStream, kMajorRevision);
WriteElement(*mOutputStream, kMinorRevision);
}
void
DrawEventRecorderPrivate::RecordEvent(const RecordedEvent &aEvent)
{
WriteElement(*mOutputStream, aEvent.mType);
aEvent.RecordToStream(*mOutputStream);
Flush();
}
DrawEventRecorderFile::DrawEventRecorderFile(const char *aFilename)
: DrawEventRecorderPrivate(nullptr)
, mOutputFile(aFilename, ofstream::binary)
{
mOutputStream = &mOutputFile;
WriteHeader();
}
DrawEventRecorderFile::~DrawEventRecorderFile()
{
mOutputFile.close();
}
void
DrawEventRecorderFile::Flush()
{
mOutputFile.flush();
}
bool
DrawEventRecorderFile::IsOpen()
{
return mOutputFile.is_open();
}
void
DrawEventRecorderFile::OpenNew(const char *aFilename)
{
MOZ_ASSERT(!mOutputFile.is_open());
mOutputFile.open(aFilename, ofstream::binary);
WriteHeader();
}
void
DrawEventRecorderFile::Close()
{
MOZ_ASSERT(mOutputFile.is_open());
mOutputFile.close();
}
DrawEventRecorderMemory::DrawEventRecorderMemory()
: DrawEventRecorderPrivate(nullptr)
{
mOutputStream = &mMemoryStream;
WriteHeader();
}
void
DrawEventRecorderMemory::Flush()
{
mOutputStream->flush();
}
size_t
DrawEventRecorderMemory::RecordingSize()
{
return mMemoryStream.tellp();
}
bool
DrawEventRecorderMemory::CopyRecording(char* aBuffer, size_t aBufferLen)
{
return !!mMemoryStream.read(aBuffer, aBufferLen);
}
void
DrawEventRecorderMemory::WipeRecording()
{
mMemoryStream.str(std::string());
mMemoryStream.clear();
WriteHeader();
}
} // namespace gfx
} // namespace mozilla