C++ TIFFSetErrorHandler函数代码示例

int IMG_isTIF(SDL_RWops* src)
{
	TIFF* tiff;
	TIFFErrorHandler prev_handler;

	/* Suppress output from libtiff */
	prev_handler = TIFFSetErrorHandler(NULL);
	
	/* Attempt to process the given file data */
	/* turn off memory mapped access with the m flag */
	tiff = TIFFClientOpen("SDL_image", "rm", (thandle_t)src, 
		tiff_read, tiff_write, tiff_seek, tiff_close, tiff_size, NULL, NULL);

	/* Reset the default error handler, since it can be useful for info */
	TIFFSetErrorHandler(prev_handler);

	/* If it's not a TIFF, then tiff will be NULL. */
	if(!tiff)
		return 0;

	/* Free up any dynamically allocated memory libtiff uses */
	TIFFClose(tiff);
	
	return 1;
}

int FileMatchTIF(Tcl_Channel chan,
		  CONST char *fileName,
		  Tcl_Obj *formatString,
		  int *widthPtr,
		  int *heightPtr,
		  Tcl_Interp *interp)
{
    TIFF *tif;
    TIFFErrorHandler prev_handler; /* Current TIFF error handler  */
    static TIFFErrorHandler temp_handler = tkTIFFErrorHandler;
                                   /* Temporary TIFF error handler
                                      (is used to avoid output of
                                       libtiff error messages to stderr) */

    prev_handler = TIFFSetErrorHandler(temp_handler);

    /* tif = TIFFFdOpen(f, fileName, "r"); */ /* this did not work */
    tif = TIFFOpen(fileName, "r");
    if (tif != NULL) {
        TIFFClose(tif);
        /* printf("FileMatchTIF: TIFF file found !"); */
        TIFFSetErrorHandler(prev_handler);
        return (TIF);
    } else {
        /* printf("FileMatchTIF: No TIF file found !"); */
        TIFFSetErrorHandler(prev_handler);
        return (0);
    }
}

static void
run (const gchar      *name,
     gint              nparams,
     const GimpParam  *param,
     gint             *nreturn_vals,
     GimpParam       **return_vals)
{
  static GimpParam   values[2];
  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
  GimpParasite      *parasite;
  gint32             image;
  gint32             drawable;
  gint32             orig_image;
  GimpExportReturn   export = GIMP_EXPORT_CANCEL;
  GError            *error  = NULL;

  run_mode = param[0].data.d_int32;

  INIT_I18N ();
  gegl_init (NULL, NULL);

  *nreturn_vals = 1;
  *return_vals  = values;

  values[0].type          = GIMP_PDB_STATUS;
  values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;

  TIFFSetWarningHandler (tiff_warning);
  TIFFSetErrorHandler (tiff_error);

  if ((strcmp (name, SAVE_PROC) == 0) ||
      (strcmp (name, SAVE2_PROC) == 0))
    {
      /* Plug-in is either file_tiff_save or file_tiff_save2 */
      image = orig_image = param[1].data.d_int32;
      drawable = param[2].data.d_int32;

      /* Do this right this time, if POSSIBLE query for parasites, otherwise
         or if there isn't one, choose the default comment from the gimprc. */

      /*  eventually export the image */
      switch (run_mode)
        {
        case GIMP_RUN_INTERACTIVE:
        case GIMP_RUN_WITH_LAST_VALS:
          gimp_ui_init (PLUG_IN_BINARY, FALSE);
          export = gimp_export_image (&image, &drawable, NULL,
                                      (GIMP_EXPORT_CAN_HANDLE_RGB |
                                       GIMP_EXPORT_CAN_HANDLE_GRAY |
                                       GIMP_EXPORT_CAN_HANDLE_INDEXED |
                                       GIMP_EXPORT_CAN_HANDLE_ALPHA ));
          if (export == GIMP_EXPORT_CANCEL)
            {
              values[0].data.d_status = GIMP_PDB_CANCEL;
              return;
            }
          break;
        default:
          break;
        }

WidthAndHeight TifImageInfo::getSize(boost::filesystem::path & aPath)
{
	WidthAndHeight result;

	static BOOL bFirstRun = true;
	if (bFirstRun) {
		TIFFSetWarningHandler(NULL);
		TIFFSetErrorHandler(NULL);
		bFirstRun = false;
	}

	TIFF *tif = TIFFOpen(aPath.file_string().data(), "r");
	if (!tif)
	{
		throw std::runtime_error("cannot open file [" + aPath.file_string() + "]");
	}

	BOOL	success	= FALSE;

	TIFFGetField(tif, TIFFTAG_IMAGEWIDTH,		&result.width);
	TIFFGetField(tif, TIFFTAG_IMAGELENGTH,		&result.height);

	TIFFClose(tif);

	return result;
}

char *readTiff3DFile2Buffer ( char *filename, unsigned char *img, unsigned int img_width, unsigned int img_height, unsigned int first, unsigned int last, 
																						  int downsamplingFactor, int starti, int endi, int startj, int endj ) {

    // 2015-01-30. Alessandro. @ADDED performance (time) measurement in all most time-consuming methods.
    #ifdef _VAA3D_TERAFLY_PLUGIN_MODE
    TERAFLY_TIME_START(TiffLoadData)
    #endif

    TIFF *input;

	//disable warning and error handlers to avoid messages on unrecognized tags
	TIFFSetWarningHandler(0);
	TIFFSetErrorHandler(0);

	input=TIFFOpen(filename,"r");
	if (!input)
    {
		//throw iim::IOException(strprintf("in IOManager::readTiffMultipage(...): Cannot open the file %s",finName).c_str());
		return ((char *) "Cannot open the file.");
    }
    
	int b_swap=TIFFIsByteSwapped(input);
	char *err_msg = readTiff3DFile2Buffer(input,img,img_width,img_height,first,last,b_swap,downsamplingFactor,starti,endi,startj,endj);

	TIFFClose(input);

    // 2015-01-30. Alessandro. @ADDED performance (time) measurement in all most time-consuming methods.
    #ifdef _VAA3D_TERAFLY_PLUGIN_MODE
    TERAFLY_TIME_STOP(TiffLoadData, tf::IO, tf::strprintf("loaded block x(%d), y(%d), z(%d-%d) from 3D tiff \"%s\"", img_width, img_height, first, last, filename))
    #endif

	return err_msg;
}

char *openTiff3DFile ( char *filename, char *mode, void *&fhandle ) {
	char *completeFilename = (char *) 0;
	int fname_len = (int) strlen(filename);
	char *suffix = strstr(filename,".tif");
	while ( suffix && (fname_len - (suffix-filename) > 5) )
		suffix = strstr(suffix+4,".tif");
	//if ( (suffix != 0) && (fname_len - (suffix-filename) <= 5) ) { // a substring ".tif is already at the end of the filename
	if ( suffix ) { // a substring ".tif is already at the very end of the filename
		completeFilename = new char[fname_len+1];
		strcpy(completeFilename,filename);
	}
	else {	
		completeFilename = new char[fname_len+4+1];
		strcpy(completeFilename,filename);
		strcat(completeFilename,".");
		strcat(completeFilename,TIFF3D_SUFFIX);
	}

	//disable warning and error handlers to avoid messages on unrecognized tags
	TIFFSetWarningHandler(0);
	TIFFSetErrorHandler(0);

	fhandle = TIFFOpen(completeFilename,mode);
	if (!fhandle)
    {
		return ((char *) "Cannot open the file.");
    }
	return ((char *) 0);
}

Tiio::Reader *Tiio::makeTziReader() {
#ifdef _DEBUG
  TIFFSetErrorHandler(MyErrorHandler);
  TIFFSetWarningHandler(MyWarningHandler);
#endif
  return new TifReader(true);
}

bool
TIFFInput::seek_subimage (int subimage, int miplevel, ImageSpec &newspec)
{
    if (subimage < 0)       // Illegal
        return false;
    if (m_emulate_mipmap) {
        // Emulating MIPmap?  Pretend one subimage, many MIP levels.
        if (subimage != 0)
            return false;
        subimage = miplevel;
    } else {
        // No MIPmap emulation
        if (miplevel != 0)
            return false;
    }

    if (subimage == m_subimage) {
        // We're already pointing to the right subimage
        newspec = m_spec;
        return true;
    }

    // If we're emulating a MIPmap, only resolution is allowed to change
    // between MIP levels, so if we already have a valid level in m_spec,
    // we don't need to re-parse metadata, it's guaranteed to be the same.
    bool read_meta = !(m_emulate_mipmap && m_tif && m_subimage >= 0);

    if (! m_tif) {
        // Use our own error handler to keep libtiff from spewing to stderr
        lock_guard lock (lasterr_mutex);
        TIFFSetErrorHandler (my_error_handler);
        TIFFSetWarningHandler (my_error_handler);
    }

    if (! m_tif) {
        m_tif = TIFFOpen (m_filename.c_str(), "rm");
        if (m_tif == NULL) {
            error ("Could not open file: %s",
                   lasterr.length() ? lasterr.c_str() : m_filename.c_str());
            return false;
        }
        m_subimage = 0;
    }
    
    m_next_scanline = 0;   // next scanline we'll read
    if (TIFFSetDirectory (m_tif, subimage)) {
        m_subimage = subimage;
        readspec (read_meta);
        newspec = m_spec;
        if (newspec.format == TypeDesc::UNKNOWN) {
            error ("No support for data format of \"%s\"", m_filename.c_str());
            return false;
        }
        return true;
    } else {
        error ("%s", lasterr.length() ? lasterr.c_str() : m_filename.c_str());
        m_subimage = -1;
        return false;
    }
}

void
sendRecvStatus(const char* modem, char* tag)
{
    DIR* dir = opendir(FAX_RECVDIR);
    if (dir != NULL) {
	struct dirent* dp;

	TIFFSetErrorHandler(NULL);
	TIFFSetWarningHandler(NULL);
	while (dp = readdir(dir)) {
	    char entry[1024];
	    struct stat sb;
	    int fd;

	    if (strncmp(dp->d_name, "fax", 3) != 0)
		continue;
	    sprintf(entry, "%s/%s", FAX_RECVDIR, dp->d_name);
	    if (stat(entry, &sb) < 0 || (sb.st_mode & S_IFMT) != S_IFREG)
		continue;
	    fd = open(entry, RECV_OMODE);
	    if (fd > 0) {
		int beingReceived =
		   (flock(fd, LOCK_EX|LOCK_NB) < 0 && errno == EWOULDBLOCK);
		(void) readQFile(fd, entry, beingReceived, &sb);
		close(fd);
	    }
	}
	closedir(dir);
    } else
	sendAndLogError("Can not access receive queue directory \"%s\".",
	    FAX_RECVDIR);
}

TIFF *
tiff_open (GFile        *file,
           const gchar  *mode,
           GError      **error)
{
  gchar *filename = g_file_get_path (file);

  TIFFSetWarningHandler (tiff_warning);
  TIFFSetErrorHandler (tiff_error);

#ifdef G_OS_WIN32
  gunichar2 *utf16_filename = g_utf8_to_utf16 (filename, -1, NULL, NULL, error);

  if (utf16_filename)
    {
      TIFF *tif = TIFFOpenW (utf16_filename, mode);

      g_free (utf16_filename);

      return tif;
    }

  return NULL;
#else
  return TIFFOpen (filename, mode);
#endif
}

void tiff_reader<T>::init()
{
    TIFFSetWarningHandler(0);
    // Note - we intentially set the error handling to null
    // when opening the image for the first time to avoid
    // leaking in TiffOpen: https://github.com/mapnik/mapnik/issues/1783
    TIFFSetErrorHandler(0);

    TIFF* tif = open(stream_);

    if (!tif) throw image_reader_exception("Can't open tiff file");

    TIFFSetErrorHandler(on_error);

    char msg[1024];

    if (TIFFRGBAImageOK(tif,msg))
    {
        TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width_);
        TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height_);
        if (TIFFIsTiled(tif))
        {
            TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width_);
            TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height_);
            read_method_=tiled;
        }
        else if (TIFFGetField(tif,TIFFTAG_ROWSPERSTRIP,&rows_per_strip_)!=0)
        {
            read_method_=stripped;
        }
        //TIFFTAG_EXTRASAMPLES
        uint16 extrasamples;
        uint16* sampleinfo;
        TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
                              &extrasamples, &sampleinfo);
        if (extrasamples == 1 &&
            sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA)
        {
            premultiplied_alpha_ = true;
        }
    }
    else
    {
        throw image_reader_exception(msg);
    }
}

static void
raster_keys(unsigned char key, int x, int y)
{
        (void) x;
        (void) y;
        switch (key) {
                case 'b':                       /* photometric MinIsBlack */
                    photo = PHOTOMETRIC_MINISBLACK;
                    initImage();
                    break;
                case 'l':                       /* lsb-to-msb FillOrder */
                    order = FILLORDER_LSB2MSB;
                    initImage();
                    break;
                case 'm':                       /* msb-to-lsb FillOrder */
                    order = FILLORDER_MSB2LSB;
                    initImage();
                    break;
                case 'w':                       /* photometric MinIsWhite */
                    photo = PHOTOMETRIC_MINISWHITE;
                    initImage();
                    break;
                case 'W':                       /* toggle warnings */
                    owarning = TIFFSetWarningHandler(owarning);
                    initImage();
                    break;
                case 'E':                       /* toggle errors */
                    oerror = TIFFSetErrorHandler(oerror);
                    initImage();
                    break;
                case 'z':                       /* reset to defaults */
                case 'Z':
                    order = order0;
                    photo = photo0;
                    if (owarning == NULL)
                        owarning = TIFFSetWarningHandler(NULL);
                    if (oerror == NULL)
                        oerror = TIFFSetErrorHandler(NULL);
                    initImage();
                    break;
                case 'q':                       /* exit */
                case '\033':
                    cleanup_and_exit();
        }
        glutPostRedisplay();
}

static void
tiff_push_handlers (void)
{
        if (global_error)
                g_warning ("TIFF loader left crufty global_error around, FIXME");
        
        orig_error_handler = TIFFSetErrorHandler (tiff_error_handler);
        orig_warning_handler = TIFFSetWarningHandler (tiff_warning_handler);
}

wxTIFFHandler::wxTIFFHandler()
{
    m_name = wxT("TIFF file");
    m_extension = wxT("tif");
    m_type = wxBITMAP_TYPE_TIF;
    m_mime = wxT("image/tiff");
    TIFFSetWarningHandler((TIFFErrorHandler) TIFFwxWarningHandler);
    TIFFSetErrorHandler((TIFFErrorHandler) TIFFwxErrorHandler);
}

static gboolean
process(GeglOperation *operation,
        GeglBuffer *input,
        const GeglRectangle *result,
        int level)
{
  GeglProperties *o = GEGL_PROPERTIES(operation);
  Priv *p = g_new0(Priv, 1);
  gboolean status = TRUE;
  GError *error = NULL;

  g_assert(p != NULL);

  o->user_data = (void*) p;

  p->stream = gegl_gio_open_output_stream(NULL, o->path, &p->file, &error);
  if (p->stream != NULL && p->file != NULL)
    p->can_seek = g_seekable_can_seek(G_SEEKABLE(p->stream));
  if (p->stream == NULL)
    {
      status = FALSE;
      g_warning("%s", error->message);
      goto cleanup;
    }

  TIFFSetErrorHandler(error_handler);
  TIFFSetWarningHandler(warning_handler);

  p->tiff = TIFFClientOpen("GEGL-tiff-save", "w", (thandle_t) p,
                           read_from_stream, write_to_stream,
                           seek_in_stream, close_stream,
                           get_file_size, NULL, NULL);
  if (p->tiff == NULL)
    {
      status = FALSE;
      g_warning("failed to open TIFF from %s", o->path);
      goto cleanup;
    }

  if (export_tiff(operation, input, result))
    {
      status = FALSE;
      g_warning("could not export TIFF file");
      goto cleanup;
    }

cleanup:
  cleanup(operation);
  if (o->user_data != NULL)
    g_free(o->user_data);
  o->user_data = NULL;

  if (error != NULL)
    g_error_free(error);

  return status;
}