C++ wxFFile::Open方法代码示例

void systemStartGamePlayback(const wxString& fname)
{
    GameArea* panel = wxGetApp().frame->GetPanel();

    if (!panel || panel->game_type() == IMAGE_UNKNOWN || !panel->emusys->emuReadState) {
        wxLogError(_("No game in progress to record"));
        return;
    }

    if (game_recording) {
        wxLogError(_("Cannot play game recording while recording"));
        return;
    }

    systemStopGamePlayback();
    wxString fn = fname;

    if (fn.size() < 4 || !wxString(fn.substr(fn.size() - 4)).IsSameAs(wxT(".vmv"), false))
        fn.append(wxT(".vmv"));

    u32 version;

    if (!game_file.Open(fn.c_str(), wxT("rb")) || game_file.Read(&version, sizeof(version)) != sizeof(version) || wxUINT32_SWAP_ON_BE(version) != 1) {
        wxLogError(_("Cannot open recording file %s"), fname.c_str());
        return;
    }

    u32 gf, jp;

    if (game_file.Read(&gf, sizeof(gf)) != sizeof(gf) || game_file.Read(&jp, sizeof(jp)) != sizeof(jp)) {
        wxLogError(_("Error reading game recording"));
        game_file.Close();
        return;
    }

    game_next_frame = wxUINT32_SWAP_ON_BE(gf);
    game_next_joypad = wxUINT32_SWAP_ON_BE(jp);
    fn[fn.size() - 1] = wxT('0');

    if (!panel->emusys->emuReadState(fn.mb_fn_str())) {
        wxLogError(_("Error reading game recording"));
        game_file.Close();
        return;
    }

    game_frame = 0;
    game_joypad = 0;
    game_playback = true;
    MainFrame* mf = wxGetApp().frame;
    mf->cmd_enable &= ~(CMDEN_NGREC | CMDEN_GREC | CMDEN_NGPLAY);
    mf->cmd_enable |= CMDEN_GPLAY;
    mf->enable_menus();
}

bool FLACImportFileHandle::Init()
{
#ifdef LEGACY_FLAC
   bool success = mFile->set_filename(OSINPUT(mFilename));
   if (!success) {
      return false;
   }
   mFile->set_metadata_respond(FLAC__METADATA_TYPE_STREAMINFO);
   mFile->set_metadata_respond(FLAC__METADATA_TYPE_VORBIS_COMMENT);
   FLAC::Decoder::File::State state = mFile->init();
   if (state != FLAC__FILE_DECODER_OK) {
      return false;
   }
#else
   if (!mHandle.Open(mFilename, wxT("rb"))) {
      return false;
   }

   // Even though there is an init() method that takes a filename, use the one that
   // takes a file handle because wxWidgets can open a file with a Unicode name and
   // libflac can't (under Windows).
   //
   // Responsibility for closing the file is passed to libflac.
   // (it happens when mFile->finish() is called)
   bool result = mFile->init(mHandle.fp())?true:false;
   mHandle.Detach();

   if (result != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
      return false;
   }
#endif
   mFile->process_until_end_of_metadata();

#ifdef LEGACY_FLAC
   state = mFile->get_state();
   if (state != FLAC__FILE_DECODER_OK) {
      return false;
   }
#else
   // not necessary to check state, error callback will catch errors, but here's how:
   if (mFile->get_state() > FLAC__STREAM_DECODER_READ_FRAME) {
      return false;
   }
#endif

   if (!mFile->is_valid() || mFile->get_was_error()) {
      // This probably is not a FLAC file at all
      return false;
   }
   return true;
}

void systemStartGameRecording(const wxString &fname)
{
	GameArea* panel = wxGetApp().frame->GetPanel();

	if (!panel || panel->game_type() == IMAGE_UNKNOWN ||
	        !panel->emusys->emuWriteState)
	{
		wxLogError(_("No game in progress to record"));
		return;
	}

	systemStopGamePlayback();
	wxString fn = fname;

	if (fn.size() < 4 || !wxString(fn.substr(fn.size() - 4)).IsSameAs(wxT(".vmv"), false))
		fn.append(wxT(".vmv"));

	u32 version = 1;

	if (!game_file.Open(fn.c_str(), wxT("wb")) ||
	        game_file.Write(&version, sizeof(version)) != sizeof(version))
	{
		wxLogError(_("Cannot open output file %s"), fname.c_str());
		return;
	}

	fn[fn.size() - 1] = wxT('0');

	if (!panel->emusys->emuWriteState(fn.mb_fn_str()))
	{
		wxLogError(_("Error writing game recording"));
		game_file.Close();
		return;
	}

	game_frame = 0;
	game_joypad = 0;
	game_recording = true;
	MainFrame* mf = wxGetApp().frame;
	mf->cmd_enable &= ~(CMDEN_NGREC | CMDEN_GPLAY | CMDEN_NGPLAY);
	mf->cmd_enable |= CMDEN_GREC;
	mf->enable_menus();
}

bool FLACImportFileHandle::Init()
{
#ifdef EXPERIMENTAL_OD_FLAC
   mDecoderTask=new ODDecodeFlacTask;

   ODFlacDecoder* odDecoder = (ODFlacDecoder*)mDecoderTask->CreateFileDecoder(mFilename);
   if(!odDecoder || !odDecoder->ReadHeader())
   {
      //DELETE the task only if it failed to read - otherwise the OD man takes care of it.
      delete mDecoderTask;
      return false;
   }
   //copy the meta data over to the class

   mSampleRate=odDecoder->mSampleRate;
   mNumChannels=odDecoder->mNumChannels;
   mBitsPerSample=odDecoder->mBitsPerSample;

   mNumSamples=odDecoder->mNumSamples;
   mBitsPerSample=odDecoder->mBitsPerSample;
   mFormat=odDecoder->mFormat;
   mStreamInfoDone=true;


   return true;
#endif
#ifdef LEGACY_FLAC
   bool success = mFile->set_filename(OSINPUT(mFilename));
   if (!success) {
      return false;
   }
   mFile->set_metadata_respond(FLAC__METADATA_TYPE_STREAMINFO);
   mFile->set_metadata_respond(FLAC__METADATA_TYPE_VORBIS_COMMENT);
   FLAC::Decoder::File::State state = mFile->init();
   if (state != FLAC__FILE_DECODER_OK) {
      return false;
   }
#else
   if (!mHandle.Open(mFilename, wxT("rb"))) {
      return false;
   }

   // Even though there is an init() method that takes a filename, use the one that
   // takes a file handle because wxWidgets can open a file with a Unicode name and
   // libflac can't (under Windows).
   //
   // Responsibility for closing the file is passed to libflac.
   // (it happens when mFile->finish() is called)
   bool result = mFile->init(mHandle.fp())?true:false;
   mHandle.Detach();

   if (result != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
      return false;
   }
#endif
   mFile->process_until_end_of_metadata();

#ifdef LEGACY_FLAC
   state = mFile->get_state();
   if (state != FLAC__FILE_DECODER_OK) {
      return false;
   }
#else
   // not necessary to check state, error callback will catch errors, but here's how:
   if (mFile->get_state() > FLAC__STREAM_DECODER_READ_FRAME) {
      return false;
   }
#endif

   if (!mFile->is_valid() || mFile->get_was_error()) {
      // This probably is not a FLAC file at all
      return false;
   }
   return true;
}