static void _lib_recentcollection_updated(gpointer instance, gpointer user_data)
{
  dt_lib_module_t *self = (dt_lib_module_t *)user_data;
  dt_lib_recentcollect_t *d = (dt_lib_recentcollect_t *)self->data;
  // serialize, check for recently used
  char confname[200];
  const int bufsize = 4096;
  char buf[bufsize];
  if(dt_collection_serialize(buf, bufsize)) return;

  // is the current position, i.e. the one to be stored with the old collection (pos0, pos1-to-be)
  uint32_t curr_pos = dt_view_lighttable_get_position(darktable.view_manager);
  uint32_t new_pos = -1;

  if(!d->inited)
  {
    new_pos = dt_conf_get_int("plugins/lighttable/recentcollect/pos0");
    d->inited = 1;
    dt_view_lighttable_set_position(darktable.view_manager, new_pos);
  }
  else if(curr_pos != -1)
  {
    dt_conf_set_int("plugins/lighttable/recentcollect/pos0", curr_pos);
  }

  int n = -1;
  for(int k = 0; k < CLAMPS(dt_conf_get_int("plugins/lighttable/recentcollect/num_items"), 0, NUM_LINES); k++)
  {
    // is it already in the current list?
    snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/line%1d", k);
    gchar *line = dt_conf_get_string(confname);
    if(!line) continue;
    if(!strcmp(line, buf))
    {
      snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/pos%1d", k);
      new_pos = dt_conf_get_int(confname);
      n = k;
      break;
    }
    g_free(line);
  }
  if(n < 0)
  {
    const int num_items = CLAMPS(dt_conf_get_int("plugins/lighttable/recentcollect/num_items"), 0, NUM_LINES);
    if(num_items < NUM_LINES)
    {
      // new, unused entry
      n = num_items;
      dt_conf_set_int("plugins/lighttable/recentcollect/num_items", num_items + 1);
    }
    else
    {
      // kill least recently used entry:
      n = num_items - 1;
    }
  }
  if(n >= 0 && n < NUM_LINES)
  {
    // sort n to the top
    for(int k = n; k > 0; k--)
    {
      snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/line%1d", k - 1);
      gchar *line1 = dt_conf_get_string(confname);
      snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/pos%1d", k - 1);
      uint32_t pos1 = dt_conf_get_int(confname);
      if(line1 && line1[0] != '\0')
      {
        snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/line%1d", k);
        dt_conf_set_string(confname, line1);
        snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/pos%1d", k);
        dt_conf_set_int(confname, pos1);
      }
      g_free(line1);
    }
    dt_conf_set_string("plugins/lighttable/recentcollect/line0", buf);
    dt_conf_set_int("plugins/lighttable/recentcollect/pos0",
                    (new_pos != -1 ? new_pos : (curr_pos != -1 ? curr_pos : 0)));
  }
  // update button descriptions:
  for(int k = 0; k < NUM_LINES; k++)
  {
    char str[2048] = { 0 };
    char str_cut[200] = { 0 };
    char str_pretty[200] = { 0 };

    snprintf(confname, sizeof(confname), "plugins/lighttable/recentcollect/line%1d", k);
    gchar *line2 = dt_conf_get_string(confname);
    if(line2 && line2[0] != '\0') pretty_print(line2, str, sizeof(str));
    g_free(line2);
    g_object_set(G_OBJECT(d->item[k].button), "tooltip-text", str, (char *)NULL);
    const int cut = 45;
    if(g_utf8_validate(str, -1, NULL))
    {
      if(g_utf8_strlen(str, -1) > cut)
      {
        g_utf8_strncpy(str_cut, str, cut);
        snprintf(str_pretty, sizeof(str_pretty), "%s...", str_cut);
        gtk_button_set_label(GTK_BUTTON(d->item[k].button), str_pretty);
      }
      else
//.........这里部分代码省略.........

int32_t dt_control_export_job_run(dt_job_t *job)
{
  long int imgid = -1;
  dt_control_image_enumerator_t *t1 = (dt_control_image_enumerator_t *)job->param;
  GList *t = t1->index;
  const int total = g_list_length(t);
  int size = 0;
  dt_imageio_module_format_t  *mformat  = dt_imageio_get_format();
  g_assert(mformat);
  dt_imageio_module_storage_t *mstorage = dt_imageio_get_storage();
  g_assert(mstorage);

  // Get max dimensions...
  uint32_t w,h,fw,fh,sw,sh;
  fw=fh=sw=sh=0;
  mstorage->dimension(mstorage, &sw,&sh);
  mformat->dimension(mformat, &fw,&fh);

  if( sw==0 || fw==0) w=sw>fw?sw:fw;
  else w=sw<fw?sw:fw;

  if( sh==0 || fh==0) h=sh>fh?sh:fh;
  else h=sh<fh?sh:fh;

  // get shared storage param struct (global sequence counter, one picasa connection etc)
  dt_imageio_module_data_t *sdata = mstorage->get_params(mstorage, &size);
  if(sdata == NULL)
  {
    dt_control_log(_("failed to get parameters from storage module, aborting export.."));
    return 1;
  }
  dt_control_log(ngettext ("exporting %d image..", "exporting %d images..", total), total);
  char message[512]= {0};
  snprintf(message, 512, ngettext ("exporting %d image to %s", "exporting %d images to %s", total), total, mstorage->name() );

  /* create a cancellable bgjob ui template */
  const guint *jid = dt_control_backgroundjobs_create(darktable.control, 0, message );
  dt_control_backgroundjobs_set_cancellable(darktable.control, jid, job);
  const dt_control_t *control = darktable.control;

  double fraction=0;
#ifdef _OPENMP
  // limit this to num threads = num full buffers - 1 (keep one for darkroom mode)
  // use min of user request and mipmap cache entries
  const int full_entries = dt_conf_get_int ("parallel_export");
  // GCC won't accept that this variable is used in a macro, considers
  // it set but not used, which makes for instance Fedora break.
  const __attribute__((__unused__)) int num_threads = MAX(1, MIN(full_entries, 8));
#if !defined(__SUNOS__)
  #pragma omp parallel default(none) private(imgid, size) shared(control, fraction, w, h, stderr, mformat, mstorage, t, sdata, job, jid, darktable) num_threads(num_threads) if(num_threads > 1)
#else
  #pragma omp parallel private(imgid, size) shared(control, fraction, w, h, mformat, mstorage, t, sdata, job, jid, darktable) num_threads(num_threads) if(num_threads > 1)
#endif
  {
#endif
    // get a thread-safe fdata struct (one jpeg struct per thread etc):
    dt_imageio_module_data_t *fdata = mformat->get_params(mformat, &size);
    fdata->max_width  = dt_conf_get_int ("plugins/lighttable/export/width");
    fdata->max_height = dt_conf_get_int ("plugins/lighttable/export/height");
    fdata->max_width = (w!=0 && fdata->max_width >w)?w:fdata->max_width;
    fdata->max_height = (h!=0 && fdata->max_height >h)?h:fdata->max_height;
    int num = 0;
    // Invariant: the tagid for 'darktable|changed' will not change while this function runs. Is this a sensible assumption?
    guint tagid = 0;
    dt_tag_new("darktable|changed",&tagid);

    while(t && dt_control_job_get_state(job) != DT_JOB_STATE_CANCELLED)
    {
#ifdef _OPENMP
      #pragma omp critical
#endif
      {
        if(!t)
          imgid = 0;
        else
        {
          imgid = (long int)t->data;
          t = g_list_delete_link(t, t);
          num = total - g_list_length(t);
        }
      }
      // remove 'changed' tag from image
      dt_tag_detach(tagid, imgid);
      // check if image still exists:
      char imgfilename[DT_MAX_PATH_LEN];
      const dt_image_t *image = dt_image_cache_read_get(darktable.image_cache, (int32_t)imgid);
      if(image)
      {
        dt_image_full_path(image->id, imgfilename, DT_MAX_PATH_LEN);
        if(!g_file_test(imgfilename, G_FILE_TEST_IS_REGULAR))
        {
          dt_control_log(_("image `%s' is currently unavailable"), image->filename);
          fprintf(stderr, _("image `%s' is currently unavailable"), imgfilename);
          // dt_image_remove(imgid);
          dt_image_cache_read_release(darktable.image_cache, image);
        }
        else
        {
          dt_image_cache_read_release(darktable.image_cache, image);
          mstorage->store(sdata, imgid, mformat, fdata, num, total);
//.........这里部分代码省略.........

int write_image (dt_imageio_module_data_t *d_tmp, const char *filename, const void *in_void, void *exif, int exif_len, int imgid)
{
    dt_imageio_tiff_t *d=(dt_imageio_tiff_t*)d_tmp;

    uint8_t* profile = NULL;
    uint32_t profile_len = 0;

    TIFF* tif = NULL;

    void* rowdata = NULL;
    uint32_t rowsize = 0;
    uint32_t stripesize = 0;
    uint32_t stripe = 0;

    int rc = 1; // default to error

    if(imgid > 0)
    {
        cmsHPROFILE out_profile = dt_colorspaces_create_output_profile(imgid);
        cmsSaveProfileToMem(out_profile, 0, &profile_len);
        if (profile_len > 0)
        {
            profile = malloc(profile_len);
            if (!profile)
            {
                rc = 1;
                goto exit;
            }
            cmsSaveProfileToMem(out_profile, profile, &profile_len);
        }
        dt_colorspaces_cleanup_profile(out_profile);
    }

    // Create little endian tiff image
    tif = TIFFOpen(filename,"wl");
    if (!tif)
    {
        rc = 1;
        goto exit;
    }

    // http://partners.adobe.com/public/developer/en/tiff/TIFFphotoshop.pdf (dated 2002)
    // "A proprietary ZIP/Flate compression code (0x80b2) has been used by some"
    // "software vendors. This code should be considered obsolete. We recommend"
    // "that TIFF implentations recognize and read the obsolete code but only"
    // "write the official compression code (0x0008)."
    // http://www.awaresystems.be/imaging/tiff/tifftags/compression.html
    // http://www.awaresystems.be/imaging/tiff/tifftags/predictor.html
    if (d->compress == 1)
    {
        TIFFSetField(tif, TIFFTAG_COMPRESSION, (uint16_t)COMPRESSION_ADOBE_DEFLATE);
        TIFFSetField(tif, TIFFTAG_PREDICTOR, (uint16_t)1);
        TIFFSetField(tif, TIFFTAG_ZIPQUALITY, (uint16_t)9);
    }
    else if (d->compress == 2)
    {
        TIFFSetField(tif, TIFFTAG_COMPRESSION, (uint16_t)COMPRESSION_ADOBE_DEFLATE);
        TIFFSetField(tif, TIFFTAG_PREDICTOR, (uint16_t)2);
        TIFFSetField(tif, TIFFTAG_ZIPQUALITY, (uint16_t)9);
    }
    else if (d->compress == 3)
    {
        TIFFSetField(tif, TIFFTAG_COMPRESSION, (uint16_t)COMPRESSION_ADOBE_DEFLATE);
        if (d->bpp == 32)
            TIFFSetField(tif, TIFFTAG_PREDICTOR, (uint16_t)3);
        else
            TIFFSetField(tif, TIFFTAG_PREDICTOR, (uint16_t)2);
        TIFFSetField(tif, TIFFTAG_ZIPQUALITY, (uint16_t)9);
    }
    else // (d->compress == 0)
    {
        TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
    }

    TIFFSetField(tif, TIFFTAG_FILLORDER, (uint16_t)FILLORDER_MSB2LSB);
    if (profile != NULL)
    {
        TIFFSetField(tif, TIFFTAG_ICCPROFILE, (uint32_t)profile_len, profile);
    }
    TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, (uint16_t)3);
    TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, (uint16_t)d->bpp);
    TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, (uint16_t)(d->bpp == 32 ? SAMPLEFORMAT_IEEEFP : SAMPLEFORMAT_UINT));
    TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (uint32_t)d->width);
    TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (uint32_t)d->height);
    TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, (uint16_t)PHOTOMETRIC_RGB);
    TIFFSetField(tif, TIFFTAG_PLANARCONFIG, (uint16_t)PLANARCONFIG_CONTIG);
    TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, (uint32_t)DT_TIFFIO_STRIPE);
    TIFFSetField(tif, TIFFTAG_ORIENTATION, (uint16_t)ORIENTATION_TOPLEFT);

    int resolution = dt_conf_get_int("metadata/resolution");
    if (resolution > 0)
    {
        TIFFSetField(tif, TIFFTAG_XRESOLUTION, (float)resolution);
        TIFFSetField(tif, TIFFTAG_YRESOLUTION, (float)resolution);
        TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, (uint16_t)RESUNIT_INCH);
    }

    rowsize = (d->width*3) * d->bpp / 8;
    stripesize = rowsize * DT_TIFFIO_STRIPE;
    stripe = 0;
//.........这里部分代码省略.........

static void _lib_location_parser_start_element(GMarkupParseContext *cxt, const char *element_name,
                                               const char **attribute_names, const gchar **attribute_values,
                                               gpointer user_data, GError **e)
{
  dt_lib_location_t *lib = (dt_lib_location_t *)user_data;

  /* only interested in place element */
  if(strcmp(element_name, "place") != 0) return;

  /* create new place */
  _lib_location_result_t *place = g_malloc0(sizeof(_lib_location_result_t));
  if(!place) return;

  place->lon = NAN;
  place->lat = NAN;
  place->bbox_lon1 = NAN;
  place->bbox_lat1 = NAN;
  place->bbox_lon2 = NAN;
  place->bbox_lat2 = NAN;
  place->marker_type = MAP_DISPLAY_NONE;
  place->marker_points = NULL;

  gboolean show_outline = dt_conf_get_bool("plugins/map/show_outline");
  int max_outline_nodes = dt_conf_get_int("plugins/map/max_outline_nodes");

  /* handle the element attribute values */
  const gchar **aname = attribute_names;
  const gchar **avalue = attribute_values;
  if(*aname)
  {
    while(*aname)
    {
      if(strcmp(*aname, "display_name") == 0)
      {
        place->name = g_strdup(*avalue);
        if(!(place->name)) goto bail_out;
      }
      else if(strcmp(*aname, "lon") == 0)
        place->lon = g_strtod(*avalue, NULL);
      else if(strcmp(*aname, "lat") == 0)
        place->lat = g_strtod(*avalue, NULL);
      else if(strcmp(*aname, "boundingbox") == 0)
      {
        char *endptr;
        float lon1, lat1, lon2, lat2;

        lat1 = g_ascii_strtod(*avalue, &endptr);
        if(*endptr != ',') goto broken_bbox;
        endptr++;

        lat2 = g_ascii_strtod(endptr, &endptr);
        if(*endptr != ',') goto broken_bbox;
        endptr++;

        lon1 = g_ascii_strtod(endptr, &endptr);
        if(*endptr != ',') goto broken_bbox;
        endptr++;

        lon2 = g_ascii_strtod(endptr, &endptr);
        if(*endptr != '\0') goto broken_bbox;

        place->bbox_lon1 = lon1;
        place->bbox_lat1 = lat1;
        place->bbox_lon2 = lon2;
        place->bbox_lat2 = lat2;
broken_bbox:
        ;
      }
      // only use the first 'geotext' entry
      else if(show_outline &&
              strcmp(*aname, "geotext") == 0 &&
              place->marker_type == MAP_DISPLAY_NONE)
      {
        if(g_str_has_prefix(*avalue, "POINT"))
        {
          char *endptr;
          float lon = g_ascii_strtod(*avalue + strlen("POINT("), &endptr);
          float lat = g_ascii_strtod(endptr, &endptr);
          if(*endptr == ')')
          {
            place->marker_type = MAP_DISPLAY_POINT;
            dt_geo_map_display_point_t *p = malloc(sizeof(dt_geo_map_display_point_t));
            p->lon = lon;
            p->lat = lat;
            place->marker_points = g_list_append(place->marker_points, p);
          }
        }
        else if(g_str_has_prefix(*avalue, "LINESTRING")
#ifdef HAVE_OSMGPSMAP_110_OR_NEWER
                || g_str_has_prefix(*avalue, "POLYGON")
                || g_str_has_prefix(*avalue, "MULTIPOLYGON")
#endif
        )
        {
          gboolean error = FALSE;
          const char *startptr = *avalue;
          char *endptr;
          while(startptr && (*startptr == ' ' || *startptr == '(' || (*startptr >= 'A' && *startptr <= 'Z')))
            startptr++;

//.........这里部分代码省略.........

void
dt_collection_update_query(const dt_collection_t *collection)
{
  char query[1024], confname[200];
  gchar *complete_query = NULL;

  const int _n_r = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int num_rules = CLAMP(_n_r, 1, 10);
  char *conj[] = {"and", "or", "and not"};

  complete_query = dt_util_dstrcat(complete_query, "(");

  for(int i=0; i<num_rules; i++)
  {
    snprintf(confname, 200, "plugins/lighttable/collect/item%1d", i);
    const int property = dt_conf_get_int(confname);
    snprintf(confname, 200, "plugins/lighttable/collect/string%1d", i);
    gchar *text = dt_conf_get_string(confname);
    if(!text) break;
    snprintf(confname, 200, "plugins/lighttable/collect/mode%1d", i);
    const int mode = dt_conf_get_int(confname);
    gchar *escaped_text = dt_util_str_replace(text, "'", "''");

    get_query_string(property, escaped_text, query);

    if(i > 0)
      complete_query = dt_util_dstrcat(complete_query, " %s %s", conj[mode], query);
    else
      complete_query = dt_util_dstrcat(complete_query, "%s", query);

    g_free(escaped_text);
    g_free(text);
  }

  complete_query = dt_util_dstrcat(complete_query, ")");

  // printf("complete query: `%s'\n", complete_query);

  /* set the extended where and the use of it in the query */
  dt_collection_set_extended_where (collection, complete_query);
  dt_collection_set_query_flags (collection, (dt_collection_get_query_flags (collection) | COLLECTION_QUERY_USE_WHERE_EXT));

  /* remove film id from default filter */
  dt_collection_set_filter_flags (collection, (dt_collection_get_filter_flags (collection) & ~COLLECTION_FILTER_FILM_ID));

  /* update query and at last the visual */
  dt_collection_update (collection);

  /* free string */
  g_free(complete_query);

  // remove from selected images where not in this query.
  sqlite3_stmt *stmt = NULL;
  const gchar *cquery = dt_collection_get_query(collection);
  complete_query = NULL;
  if(cquery && cquery[0] != '\0')
  {
    complete_query = dt_util_dstrcat(complete_query, "delete from selected_images where imgid not in (%s)", cquery);
    DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), complete_query, -1, &stmt, NULL);
    DT_DEBUG_SQLITE3_BIND_INT(stmt, 1, 0);
    DT_DEBUG_SQLITE3_BIND_INT(stmt, 2, -1);
    sqlite3_step(stmt);
    sqlite3_finalize(stmt);

    /* free allocated strings */
    g_free(complete_query);
  }


  /* raise signal of collection change, only if this is an original */
  if (!collection->clone)
    dt_control_signal_raise(darktable.signals, DT_SIGNAL_COLLECTION_CHANGED);

}

void dt_mipmap_cache_init(dt_mipmap_cache_t *cache)
{
  // make sure static memory is initialized
  struct dt_mipmap_buffer_dsc *dsc = (struct dt_mipmap_buffer_dsc *)dt_mipmap_cache_static_dead_image;
  dead_image_f((dt_mipmap_buffer_t *)(dsc+1));

  cache->compression_type = 0;
  gchar *compression = dt_conf_get_string("cache_compression");
  if(compression)
  {
    if(!strcmp(compression, "low quality (fast)"))
      cache->compression_type = 1;
    else if(!strcmp(compression, "high quality (slow)"))
      cache->compression_type = 2;
    g_free(compression);
  }

  dt_print(DT_DEBUG_CACHE, "[mipmap_cache_init] using %s\n", cache->compression_type == 0 ? "no compression" :
           (cache->compression_type == 1 ? "low quality compression" : "slow high quality compression"));

  // adjust numbers to be large enough to hold what mem limit suggests.
  // we want at least 100MB, and consider 2G just still reasonable.
  uint32_t max_mem = CLAMPS(dt_conf_get_int("cache_memory"), 100u<<20, 2u<<30);
  const uint32_t parallel = CLAMP(dt_conf_get_int ("worker_threads")*dt_conf_get_int("parallel_export"), 1, 8);
  const int32_t max_size = 2048, min_size = 32;
  int32_t wd = darktable.thumbnail_width;
  int32_t ht = darktable.thumbnail_height;
  wd = CLAMPS(wd, min_size, max_size);
  ht = CLAMPS(ht, min_size, max_size);
  // round up to a multiple of 8, so we can divide by two 3 times
  if(wd & 0xf) wd = (wd & ~0xf) + 0x10;
  if(ht & 0xf) ht = (ht & ~0xf) + 0x10;
  // cache these, can't change at runtime:
  cache->mip[DT_MIPMAP_F].max_width  = wd;
  cache->mip[DT_MIPMAP_F].max_height = ht;
  cache->mip[DT_MIPMAP_F-1].max_width  = wd;
  cache->mip[DT_MIPMAP_F-1].max_height = ht;
  for(int k=DT_MIPMAP_F-2; k>=DT_MIPMAP_0; k--)
  {
    cache->mip[k].max_width  = cache->mip[k+1].max_width  / 2;
    cache->mip[k].max_height = cache->mip[k+1].max_height / 2;
  }

  // initialize some per-thread cached scratchmem for uncompressed buffers during thumb creation:
  if(cache->compression_type)
  {
    cache->scratchmem.max_width = wd;
    cache->scratchmem.max_height = ht;
    cache->scratchmem.buffer_size = wd*ht*sizeof(uint32_t);
    cache->scratchmem.size = DT_MIPMAP_3; // at max.
    // TODO: use thread local storage instead (zero performance penalty on linux)
    dt_cache_init(&cache->scratchmem.cache, parallel, parallel, 64, 0.9f*parallel*wd*ht*sizeof(uint32_t));
    // might have been rounded to power of two:
    const int cnt = dt_cache_capacity(&cache->scratchmem.cache);
    cache->scratchmem.buf = dt_alloc_align(64, cnt * wd*ht*sizeof(uint32_t));
    dt_cache_static_allocation(&cache->scratchmem.cache, (uint8_t *)cache->scratchmem.buf, wd*ht*sizeof(uint32_t));
    dt_cache_set_allocate_callback(&cache->scratchmem.cache,
                                   scratchmem_allocate, &cache->scratchmem);
    dt_print(DT_DEBUG_CACHE,
             "[mipmap_cache_init] cache has % 5d entries for temporary compression buffers (% 4.02f MB).\n",
             cnt, cnt* wd*ht*sizeof(uint32_t)/(1024.0*1024.0));
  }

  for(int k=DT_MIPMAP_3; k>=0; k--)
  {
    // buffer stores width and height + actual data
    const int width  = cache->mip[k].max_width;
    const int height = cache->mip[k].max_height;
    // header + adjusted for dxt compression:
    cache->mip[k].buffer_size = 4*sizeof(uint32_t) + compressed_buffer_size(cache->compression_type, width, height);
    cache->mip[k].size = k;
    // level of parallelism also gives minimum size (which is twice that)
    // is rounded to a power of two by the cache anyways, we might as well.
    const uint32_t max_mem2 = MAX(0, (k == 0) ? (max_mem) : (max_mem/(k+4)));
    uint32_t thumbnails = MAX(2, nearest_power_of_two((uint32_t)((float)max_mem2/cache->mip[k].buffer_size)));
    while(thumbnails > parallel && thumbnails * cache->mip[k].buffer_size > max_mem2) thumbnails /= 2;

    // try to utilize that memory well (use 90% quota), the hopscotch paper claims good scalability up to
    // even more than that.
    dt_cache_init(&cache->mip[k].cache, thumbnails,
                  parallel,
                  64, 0.9f*thumbnails*cache->mip[k].buffer_size);

    // might have been rounded to power of two:
    thumbnails = dt_cache_capacity(&cache->mip[k].cache);
    max_mem -= thumbnails * cache->mip[k].buffer_size;
    // dt_print(DT_DEBUG_CACHE, "[mipmap mem] %4.02f left\n", max_mem/(1024.0*1024.0));
    cache->mip[k].buf = dt_alloc_align(64, thumbnails * cache->mip[k].buffer_size);
    dt_cache_static_allocation(&cache->mip[k].cache, (uint8_t *)cache->mip[k].buf, cache->mip[k].buffer_size);
    dt_cache_set_allocate_callback(&cache->mip[k].cache,
                                   dt_mipmap_cache_allocate, &cache->mip[k]);
    // dt_cache_set_cleanup_callback(&cache->mip[k].cache,
    // &dt_mipmap_cache_deallocate, &cache->mip[k]);

    dt_print(DT_DEBUG_CACHE,
             "[mipmap_cache_init] cache has % 5d entries for mip %d (% 4.02f MB).\n",
             thumbnails, k, thumbnails * cache->mip[k].buffer_size/(1024.0*1024.0));
  }

  // full buffer needs dynamic alloc:
//.........这里部分代码省略.........

static gboolean _lib_tagging_tag_show(GtkAccelGroup *accel_group, GObject *acceleratable, guint keyval,
                                      GdkModifierType modifier, dt_lib_module_t *self)
{
  int mouse_over_id = -1;
  int zoom = dt_conf_get_int("plugins/lighttable/images_in_row");

  // the order is:
  // if(zoom == 1) => currently shown image
  // else if(selection not empty) => selected images
  // else if(cursor over image) => hovered image
  // else => return
  if(zoom == 1 || dt_collection_get_selected_count(darktable.collection) == 0)
  {
    mouse_over_id = dt_control_get_mouse_over_id();
    if(mouse_over_id < 0) return TRUE;
  }

  dt_lib_tagging_t *d = (dt_lib_tagging_t *)self->data;
  d->floating_tag_imgid = mouse_over_id;

  gint x, y;
  gint px, py, w, h;
  GtkWidget *window = dt_ui_main_window(darktable.gui->ui);
  GtkWidget *center = dt_ui_center(darktable.gui->ui);
  gdk_window_get_origin(gtk_widget_get_window(center), &px, &py);

  w = gdk_window_get_width(gtk_widget_get_window(center));
  h = gdk_window_get_height(gtk_widget_get_window(center));

  x = px + 0.5 * (w - FLOATING_ENTRY_WIDTH);
  y = py + h - 50;

  /* put the floating box at the mouse pointer */
  //   gint pointerx, pointery;
  //   GdkDevice *device =
  //   gdk_device_manager_get_client_pointer(gdk_display_get_device_manager(gtk_widget_get_display(widget)));
  //   gdk_window_get_device_position (gtk_widget_get_window (widget), device, &pointerx, &pointery, NULL);
  //   x = px + pointerx + 1;
  //   y = py + pointery + 1;

  d->floating_tag_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  /* stackoverflow.com/questions/1925568/how-to-give-keyboard-focus-to-a-pop-up-gtk-window */
  gtk_widget_set_can_focus(d->floating_tag_window, TRUE);
  gtk_window_set_decorated(GTK_WINDOW(d->floating_tag_window), FALSE);
  gtk_window_set_type_hint(GTK_WINDOW(d->floating_tag_window), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
  gtk_window_set_transient_for(GTK_WINDOW(d->floating_tag_window), GTK_WINDOW(window));
  gtk_widget_set_opacity(d->floating_tag_window, 0.8);
  gtk_window_move(GTK_WINDOW(d->floating_tag_window), x, y);


  GtkWidget *entry = gtk_entry_new();
  gtk_widget_set_size_request(entry, FLOATING_ENTRY_WIDTH, -1);
  gtk_widget_add_events(entry, GDK_FOCUS_CHANGE_MASK);

  GtkEntryCompletion *completion = gtk_entry_completion_new();
  gtk_entry_completion_set_model(completion, gtk_tree_view_get_model(GTK_TREE_VIEW(d->related)));
  gtk_entry_completion_set_text_column(completion, 0);
  gtk_entry_completion_set_inline_completion(completion, TRUE);
  gtk_entry_completion_set_popup_set_width(completion, FALSE);
  gtk_entry_completion_set_match_func(completion, _completion_match_func, NULL, NULL);
  gtk_entry_set_completion(GTK_ENTRY(entry), completion);

  gtk_editable_select_region(GTK_EDITABLE(entry), 0, -1);
  gtk_container_add(GTK_CONTAINER(d->floating_tag_window), entry);
  g_signal_connect(entry, "focus-out-event", G_CALLBACK(_lib_tagging_tag_destroy), d->floating_tag_window);
  g_signal_connect(entry, "key-press-event", G_CALLBACK(_lib_tagging_tag_key_press), self);

  gtk_widget_show_all(d->floating_tag_window);
  gtk_widget_grab_focus(entry);
  gtk_window_present(GTK_WINDOW(d->floating_tag_window));

  return TRUE;
}

int write_image(dt_imageio_module_data_t *jpg_tmp, const char *filename, const void *in_tmp,
                dt_colorspaces_color_profile_type_t over_type, const char *over_filename,
                void *exif, int exif_len, int imgid, int num, int total, struct dt_dev_pixelpipe_t *pipe)
{
  dt_imageio_jpeg_t *jpg = (dt_imageio_jpeg_t *)jpg_tmp;
  const uint8_t *in = (const uint8_t *)in_tmp;
  struct dt_imageio_jpeg_error_mgr jerr;

  jpg->cinfo.err = jpeg_std_error(&jerr.pub);
  jerr.pub.error_exit = dt_imageio_jpeg_error_exit;
  if(setjmp(jerr.setjmp_buffer))
  {
    jpeg_destroy_compress(&(jpg->cinfo));
    return 1;
  }
  jpeg_create_compress(&(jpg->cinfo));
  FILE *f = g_fopen(filename, "wb");
  if(!f) return 1;
  jpeg_stdio_dest(&(jpg->cinfo), f);

  jpg->cinfo.image_width = jpg->global.width;
  jpg->cinfo.image_height = jpg->global.height;
  jpg->cinfo.input_components = 3;
  jpg->cinfo.in_color_space = JCS_RGB;
  jpeg_set_defaults(&(jpg->cinfo));
  jpeg_set_quality(&(jpg->cinfo), jpg->quality, TRUE);
  if(jpg->quality > 90) jpg->cinfo.comp_info[0].v_samp_factor = 1;
  if(jpg->quality > 92) jpg->cinfo.comp_info[0].h_samp_factor = 1;
  if(jpg->quality > 95) jpg->cinfo.dct_method = JDCT_FLOAT;
  if(jpg->quality < 50) jpg->cinfo.dct_method = JDCT_IFAST;
  if(jpg->quality < 80) jpg->cinfo.smoothing_factor = 20;
  if(jpg->quality < 60) jpg->cinfo.smoothing_factor = 40;
  if(jpg->quality < 40) jpg->cinfo.smoothing_factor = 60;
  jpg->cinfo.optimize_coding = 1;

  // according to specs density_unit = 0, X_density = 1, Y_density = 1 should be fine and valid since it
  // describes an image with unknown unit and square pixels.
  // however, some applications (like the Telekom cloud thingy) seem to be confused by that, so let's set
  // these calues to the same as stored in exiv :/
  const int resolution = dt_conf_get_int("metadata/resolution");
  if(resolution > 0)
  {
    jpg->cinfo.density_unit = 1;
    jpg->cinfo.X_density = resolution;
    jpg->cinfo.Y_density = resolution;
  }
  else
  {
    jpg->cinfo.density_unit = 0;
    jpg->cinfo.X_density = 1;
    jpg->cinfo.Y_density = 1;
  }

  jpeg_start_compress(&(jpg->cinfo), TRUE);

  if(imgid > 0)
  {
    cmsHPROFILE out_profile = dt_colorspaces_get_output_profile(imgid, over_type, over_filename)->profile;
    uint32_t len = 0;
    cmsSaveProfileToMem(out_profile, 0, &len);
    if(len > 0)
    {
      unsigned char *buf = malloc(len * sizeof(unsigned char));
      cmsSaveProfileToMem(out_profile, buf, &len);
      write_icc_profile(&(jpg->cinfo), buf, len);
      free(buf);
    }
  }

  uint8_t *row = malloc((size_t)3 * jpg->global.width * sizeof(uint8_t));
  const uint8_t *buf;
  while(jpg->cinfo.next_scanline < jpg->cinfo.image_height)
  {
    JSAMPROW tmp[1];
    buf = in + (size_t)jpg->cinfo.next_scanline * jpg->cinfo.image_width * 4;
    for(int i = 0; i < jpg->global.width; i++)
      for(int k = 0; k < 3; k++) row[3 * i + k] = buf[4 * i + k];
    tmp[0] = row;
    jpeg_write_scanlines(&(jpg->cinfo), tmp, 1);
  }
  jpeg_finish_compress(&(jpg->cinfo));
  free(row);
  jpeg_destroy_compress(&(jpg->cinfo));
  fclose(f);

  dt_exif_write_blob(exif, exif_len, filename, 1);

  return 0;
}

void gui_init(struct dt_iop_module_t *self)
{
  self->gui_data = malloc(sizeof(dt_iop_colorzones_gui_data_t));
  dt_iop_colorzones_gui_data_t *c = (dt_iop_colorzones_gui_data_t *)self->gui_data;
  dt_iop_colorzones_params_t *p = (dt_iop_colorzones_params_t *)self->params;

//   c->channel = DT_IOP_COLORZONES_C;
  c->channel = dt_conf_get_int("plugins/darkroom/colorzones/gui_channel");
  int ch = (int)c->channel;
  c->minmax_curve = dt_draw_curve_new(0.0, 1.0, CATMULL_ROM);
  (void)dt_draw_curve_add_point(c->minmax_curve, p->equalizer_x[ch][DT_IOP_COLORZONES_BANDS-2]-1.0, p->equalizer_y[ch][DT_IOP_COLORZONES_BANDS-2]);
  for(int k=0; k<DT_IOP_COLORZONES_BANDS; k++) (void)dt_draw_curve_add_point(c->minmax_curve, p->equalizer_x[ch][k], p->equalizer_y[ch][k]);
  (void)dt_draw_curve_add_point(c->minmax_curve, p->equalizer_x[ch][1]+1.0, p->equalizer_y[ch][1]);
  c->mouse_x = c->mouse_y = c->mouse_pick = -1.0;
  c->dragging = 0;
  c->x_move = -1;
  c->mouse_radius = 1.0/DT_IOP_COLORZONES_BANDS;
  self->widget = GTK_WIDGET(gtk_vbox_new(FALSE, DT_GUI_IOP_MODULE_CONTROL_SPACING));

  // select by which dimension
  GtkHBox *hbox = GTK_HBOX(gtk_hbox_new(FALSE, 5));
  GtkWidget *label = gtk_label_new(_("select by"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.5f);
  c->select_by = gtk_combo_box_new_text();
  gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
  gtk_combo_box_append_text(GTK_COMBO_BOX(c->select_by), _("hue"));
  gtk_combo_box_append_text(GTK_COMBO_BOX(c->select_by), _("saturation"));
  gtk_combo_box_append_text(GTK_COMBO_BOX(c->select_by), _("lightness"));
  gtk_box_pack_start(GTK_BOX(hbox), c->select_by, TRUE, TRUE, 0);
  g_signal_connect (G_OBJECT (c->select_by), "changed", G_CALLBACK (select_by_changed), (gpointer)self);

  GtkWidget *tb = dtgtk_togglebutton_new(dtgtk_cairo_paint_colorpicker, CPF_STYLE_FLAT);
  g_object_set(G_OBJECT(tb), "tooltip-text", _("pick gui color from image"), (char *)NULL);
  g_signal_connect(G_OBJECT(tb), "toggled", G_CALLBACK(request_pick_toggled), self);
  gtk_box_pack_start(GTK_BOX(hbox), tb, FALSE, FALSE, 0);

  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(hbox), FALSE, FALSE, 0);

  // tabs
  GtkVBox *vbox = GTK_VBOX(gtk_vbox_new(FALSE, 0));//DT_GUI_IOP_MODULE_CONTROL_SPACING));

  c->channel_tabs = GTK_NOTEBOOK(gtk_notebook_new());

  gtk_notebook_append_page(GTK_NOTEBOOK(c->channel_tabs), GTK_WIDGET(gtk_hbox_new(FALSE,0)), gtk_label_new(_("lightness")));
  gtk_notebook_append_page(GTK_NOTEBOOK(c->channel_tabs), GTK_WIDGET(gtk_hbox_new(FALSE,0)), gtk_label_new(_("saturation")));
  gtk_notebook_append_page(GTK_NOTEBOOK(c->channel_tabs), GTK_WIDGET(gtk_hbox_new(FALSE,0)), gtk_label_new(_("hue")));

  gtk_widget_show_all(GTK_WIDGET(gtk_notebook_get_nth_page(c->channel_tabs, c->channel)));
  gtk_notebook_set_current_page(GTK_NOTEBOOK(c->channel_tabs), c->channel);

  g_object_set(G_OBJECT(c->channel_tabs), "homogeneous", TRUE, (char *)NULL);

  gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET(c->channel_tabs), FALSE, FALSE, 0);

  g_signal_connect(G_OBJECT(c->channel_tabs), "switch_page",
                   G_CALLBACK (colorzones_tab_switch), self);

  // the nice graph
  c->area = GTK_DRAWING_AREA(gtk_drawing_area_new());
  gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET(c->area), TRUE, TRUE, 0);
  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(vbox), TRUE, TRUE, 5);
  gtk_drawing_area_size(c->area, 195, 195);

  gtk_widget_add_events(GTK_WIDGET(c->area), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_LEAVE_NOTIFY_MASK);
  g_signal_connect (G_OBJECT (c->area), "expose-event",
                    G_CALLBACK (colorzones_expose), self);
  g_signal_connect (G_OBJECT (c->area), "button-press-event",
                    G_CALLBACK (colorzones_button_press), self);
  g_signal_connect (G_OBJECT (c->area), "button-release-event",
                    G_CALLBACK (colorzones_button_release), self);
  g_signal_connect (G_OBJECT (c->area), "motion-notify-event",
                    G_CALLBACK (colorzones_motion_notify), self);
  g_signal_connect (G_OBJECT (c->area), "leave-notify-event",
                    G_CALLBACK (colorzones_leave_notify), self);
  g_signal_connect (G_OBJECT (c->area), "enter-notify-event",
                    G_CALLBACK (colorzones_enter_notify), self);
  g_signal_connect (G_OBJECT (c->area), "scroll-event",
                    G_CALLBACK (colorzones_scrolled), self);


  c->hsRGB = dt_colorspaces_create_srgb_profile();
  c->hLab  = dt_colorspaces_create_lab_profile();
  c->xform = cmsCreateTransform(c->hLab, TYPE_Lab_DBL, c->hsRGB, TYPE_RGB_DBL,
                                INTENT_PERCEPTUAL, 0);
}

int
dt_gui_gtk_init(dt_gui_gtk_t *gui, int argc, char *argv[])
{
  // unset gtk rc from kde:
  char gtkrc[PATH_MAX], path[PATH_MAX], datadir[PATH_MAX], configdir[PATH_MAX];
  dt_loc_get_datadir(datadir, PATH_MAX);
  dt_loc_get_user_config_dir(configdir, PATH_MAX);

  g_snprintf(gtkrc, PATH_MAX, "%s/darktable.gtkrc", configdir);

  if (!g_file_test(gtkrc, G_FILE_TEST_EXISTS))
    g_snprintf(gtkrc, PATH_MAX, "%s/darktable.gtkrc", datadir);

  if (g_file_test(gtkrc, G_FILE_TEST_EXISTS))
    (void)setenv("GTK2_RC_FILES", gtkrc, 1);
  else
    fprintf(stderr, "[gtk_init] could not found darktable.gtkrc");

  /* lets zero mem */
  memset(gui,0,sizeof(dt_gui_gtk_t));

#if GLIB_MAJOR_VERSION <= 2
#if GLIB_MINOR_VERSION < 31
  if (!g_thread_supported ()) g_thread_init(NULL);
#endif
#endif
  gdk_threads_init();

  gdk_threads_enter();

  gtk_init (&argc, &argv);

  GtkWidget *widget;
  gui->ui = dt_ui_initialize(argc,argv);
  gui->pixmap = NULL;
  gui->center_tooltip = 0;
  gui->presets_popup_menu = NULL;

  if(g_file_test(gtkrc, G_FILE_TEST_EXISTS))
    gtk_rc_parse (gtkrc);

  // Initializing the shortcut groups
  darktable.control->accelerators = gtk_accel_group_new();

  darktable.control->accelerator_list = NULL;

  // Connecting the callback to update keyboard accels for key_pressed
  g_signal_connect(G_OBJECT(gtk_accel_map_get()),
                   "changed",
                   G_CALLBACK(key_accel_changed),
                   NULL);

  // Initializing widgets
  init_widgets();

  // Adding the global shortcut group to the main window
  gtk_window_add_accel_group(GTK_WINDOW(dt_ui_main_window(darktable.gui->ui)),
                             darktable.control->accelerators);

  // get the screen resolution
  gui->dpi = gdk_screen_get_resolution(gtk_widget_get_screen(GTK_WIDGET(dt_ui_main_window(darktable.gui->ui))));

  // set constant width from conf key
  int panel_width = dt_conf_get_int("panel_width");
  if(panel_width < 20 || panel_width > 500)
  {
    // fix for unset/insane values.
    panel_width = 300;
    dt_conf_set_int("panel_width", panel_width);
  }

  //  dt_gui_background_jobs_init();

  /* Have the delete event (window close) end the program */
  dt_loc_get_datadir(datadir, PATH_MAX);
  snprintf(path, PATH_MAX, "%s/icons", datadir);
  gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (), path);

  widget = dt_ui_center(darktable.gui->ui);

  g_signal_connect (G_OBJECT (widget), "key-press-event",
                    G_CALLBACK (key_pressed), NULL);
  g_signal_connect (G_OBJECT (widget), "configure-event",
                    G_CALLBACK (configure), NULL);
  g_signal_connect (G_OBJECT (widget), "expose-event",
                    G_CALLBACK (expose), NULL);
  g_signal_connect (G_OBJECT (widget), "motion-notify-event",
                    G_CALLBACK (mouse_moved), NULL);
  g_signal_connect (G_OBJECT (widget), "leave-notify-event",
                    G_CALLBACK (center_leave), NULL);
  g_signal_connect (G_OBJECT (widget), "enter-notify-event",
                    G_CALLBACK (center_enter), NULL);
  g_signal_connect (G_OBJECT (widget), "button-press-event",
                    G_CALLBACK (button_pressed), NULL);
  g_signal_connect (G_OBJECT (widget), "button-release-event",
                    G_CALLBACK (button_released), NULL);
  g_signal_connect (G_OBJECT (widget), "scroll-event",
                    G_CALLBACK (scrolled), NULL);
  // TODO: left, right, top, bottom:
  //leave-notify-event
//.........这里部分代码省略.........

static int dt_ellipse_events_button_pressed(struct dt_iop_module_t *module, float pzx, float pzy,
                                            double pressure, int which, int type, uint32_t state,
                                            dt_masks_form_t *form, int parentid, dt_masks_form_gui_t *gui,
                                            int index)
{
  if(!gui) return 0;
  if(gui->source_selected && !gui->creation && gui->edit_mode == DT_MASKS_EDIT_FULL)
  {
    dt_masks_form_gui_points_t *gpt = (dt_masks_form_gui_points_t *)g_list_nth_data(gui->points, index);
    if(!gpt) return 0;
    // we start the source dragging
    gui->source_dragging = TRUE;
    gui->posx = pzx * darktable.develop->preview_pipe->backbuf_width;
    gui->posy = pzy * darktable.develop->preview_pipe->backbuf_height;
    gui->dx = gpt->source[0] - gui->posx;
    gui->dy = gpt->source[1] - gui->posy;
    return 1;
  }
  else if(gui->point_selected >= 1 && !gui->creation && gui->edit_mode == DT_MASKS_EDIT_FULL
          && !((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK))
  {
    dt_masks_form_gui_points_t *gpt = (dt_masks_form_gui_points_t *)g_list_nth_data(gui->points, index);
    if(!gpt) return 0;
    gui->point_dragging = gui->point_selected;
    gui->posx = pzx * darktable.develop->preview_pipe->backbuf_width;
    gui->posy = pzy * darktable.develop->preview_pipe->backbuf_height;
    gui->dx = gpt->points[0] - gui->posx;
    gui->dy = gpt->points[1] - gui->posy;
    return 1;
  }
  else if(gui->form_selected && !gui->creation && gui->edit_mode == DT_MASKS_EDIT_FULL
          && !((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK))
  {
    dt_masks_form_gui_points_t *gpt = (dt_masks_form_gui_points_t *)g_list_nth_data(gui->points, index);
    if(!gpt) return 0;
    // we start the form dragging or rotating
    if((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
      gui->form_rotating = TRUE;
    else
      gui->form_dragging = TRUE;
    gui->posx = pzx * darktable.develop->preview_pipe->backbuf_width;
    gui->posy = pzy * darktable.develop->preview_pipe->backbuf_height;
    gui->dx = gpt->points[0] - gui->posx;
    gui->dy = gpt->points[1] - gui->posy;
    return 1;
  }
  else if(gui->form_selected && !gui->creation && ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK))
  {
    dt_masks_form_gui_points_t *gpt = (dt_masks_form_gui_points_t *)g_list_nth_data(gui->points, index);
    if(!gpt) return 0;

    gui->border_toggling = TRUE;

    return 1;
  }
  else if(gui->creation && (which == 3))
  {
    dt_masks_set_edit_mode(module, DT_MASKS_EDIT_FULL);
    dt_masks_iop_update(module);
    dt_control_queue_redraw_center();
    return 1;
  }
  else if(gui->creation)
  {
    dt_iop_module_t *crea_module = gui->creation_module;
    // we create the ellipse
    dt_masks_point_ellipse_t *ellipse
        = (dt_masks_point_ellipse_t *)(malloc(sizeof(dt_masks_point_ellipse_t)));

    // we change the center value
    float wd = darktable.develop->preview_pipe->backbuf_width;
    float ht = darktable.develop->preview_pipe->backbuf_height;
    float pts[2] = { pzx * wd, pzy * ht };
    dt_dev_distort_backtransform(darktable.develop, pts, 1);
    ellipse->center[0] = pts[0] / darktable.develop->preview_pipe->iwidth;
    ellipse->center[1] = pts[1] / darktable.develop->preview_pipe->iheight;

    if(form->type & DT_MASKS_CLONE)
    {
      const float a = dt_conf_get_float("plugins/darkroom/spots/ellipse_radius_a");
      const float b = dt_conf_get_float("plugins/darkroom/spots/ellipse_radius_b");
      const float ellipse_border = dt_conf_get_float("plugins/darkroom/spots/ellipse_border");
      const float rotation = dt_conf_get_float("plugins/darkroom/spots/ellipse_rotation");
      const int flags = dt_conf_get_int("plugins/darkroom/spots/ellipse_flags");
      ellipse->radius[0] = MAX(0.01f, MIN(0.5f, a));
      ellipse->radius[1] = MAX(0.01f, MIN(0.5f, b));
      ellipse->flags = flags;
      ellipse->rotation = rotation;
      const float min_radius = fmin(ellipse->radius[0], ellipse->radius[1]);
      const float reference = (ellipse->flags & DT_MASKS_ELLIPSE_PROPORTIONAL ? 1.0f/min_radius : 1.0f);
      ellipse->border = MAX(0.005f * reference, MIN(0.5f * reference, ellipse_border));
      form->source[0] = ellipse->center[0] + 0.02f;
      form->source[1] = ellipse->center[1] + 0.02f;
    }
    else
    {
      const float a = dt_conf_get_float("plugins/darkroom/masks/ellipse/radius_a");
      const float b = dt_conf_get_float("plugins/darkroom/masks/ellipse/radius_b");
      const float ellipse_border = dt_conf_get_float("plugins/darkroom/masks/ellipse/border");
      const float rotation = dt_conf_get_float("plugins/darkroom/masks/ellipse/rotation");
//.........这里部分代码省略.........

//.........这里部分代码省略.........
          }

          dev.history_end++;
          dev.history = g_list_append(dev.history, h);
          module_found = TRUE;
          g_free(s->name);
          break;
        }
        modules = g_list_next(modules);
      }
      if(!module_found) dt_style_item_free(s);
      stls = g_list_next(stls);
    }
    g_list_free(stls);
  }

  dt_dev_pixelpipe_set_input(&pipe, &dev, (float *)buf.buf, buf.width, buf.height, buf.iscale);
  dt_dev_pixelpipe_create_nodes(&pipe, &dev);
  dt_dev_pixelpipe_synch_all(&pipe, &dev);

  if(filter)
  {
    if(!strncmp(filter, "pre:", 4)) dt_dev_pixelpipe_disable_after(&pipe, filter + 4);
    if(!strncmp(filter, "post:", 5)) dt_dev_pixelpipe_disable_before(&pipe, filter + 5);
  }

  dt_dev_pixelpipe_get_dimensions(&pipe, &dev, pipe.iwidth, pipe.iheight, &pipe.processed_width,
                                  &pipe.processed_height);

  dt_show_times(&start, "[export] creating pixelpipe", NULL);

  // find output color profile for this image:
  int sRGB = 1;
  int icctype = dt_conf_get_int("plugins/lighttable/export/icctype");
  if(icctype == DT_COLORSPACE_SRGB)
  {
    sRGB = 1;
  }
  else if(icctype == DT_COLORSPACE_NONE)
  {
    GList *modules = dev.iop;
    dt_iop_module_t *colorout = NULL;
    while(modules)
    {
      colorout = (dt_iop_module_t *)modules->data;
      if(colorout->get_p && strcmp(colorout->op, "colorout") == 0)
      {
        const dt_colorspaces_color_profile_type_t *type = colorout->get_p(colorout->params, "type");
        sRGB = (!type || *type == DT_COLORSPACE_SRGB);
        break; // colorout can't have > 1 instance
      }
      modules = g_list_next(modules);
    }
  }
  else
  {
    sRGB = 0;
  }

  // get only once at the beginning, in case the user changes it on the way:
  const gboolean high_quality_processing
      = ((format_params->max_width == 0 || format_params->max_width >= pipe.processed_width)
         && (format_params->max_height == 0 || format_params->max_height >= pipe.processed_height))
            ? FALSE
            : high_quality;