// load a full-res thumbnail: int dt_imageio_large_thumbnail(const char *filename, uint8_t **buffer, int32_t *width, int32_t *height, int32_t *orientation) { int ret = 0; int res = 1; // raw image thumbnail libraw_data_t *raw = libraw_init(0); libraw_processed_image_t *image = NULL; ret = libraw_open_file(raw, filename); if(ret) goto libraw_fail; ret = libraw_unpack_thumb(raw); if(ret) goto libraw_fail; ret = libraw_adjust_sizes_info_only(raw); if(ret) goto libraw_fail; image = libraw_dcraw_make_mem_thumb(raw, &ret); if(!image || ret) goto libraw_fail; *orientation = raw->sizes.flip; if(image->type == LIBRAW_IMAGE_JPEG) { dt_imageio_jpeg_t jpg; if(dt_imageio_jpeg_decompress_header(image->data, image->data_size, &jpg)) goto libraw_fail; *buffer = (uint8_t *)malloc((size_t)sizeof(uint8_t)*jpg.width*jpg.height*4); if(!*buffer) goto libraw_fail; *width = jpg.width; *height = jpg.height; if(dt_imageio_jpeg_decompress(&jpg, *buffer)) { free(*buffer); *buffer = 0; goto libraw_fail; } res = 0; } // clean up raw stuff. libraw_recycle(raw); libraw_close(raw); free(image); if(0) { libraw_fail: // fprintf(stderr,"[imageio] %s: %s\n", filename, libraw_strerror(ret)); libraw_close(raw); res = 1; } return res; }
// open a raw file, libraw path: dt_imageio_retval_t dt_imageio_open_raw( dt_image_t *img, const char *filename, dt_mipmap_cache_allocator_t a) { if(!img->exif_inited) (void) dt_exif_read(img, filename); int ret; libraw_data_t *raw = libraw_init(0); libraw_processed_image_t *image = NULL; raw->params.half_size = 0; /* dcraw -h */ raw->params.use_camera_wb = 0; raw->params.use_auto_wb = 0; raw->params.med_passes = 0;//img->raw_params.med_passes; raw->params.no_auto_bright = 1; // raw->params.filtering_mode |= LIBRAW_FILTERING_NOBLACKS; // raw->params.document_mode = 2; // no color scaling, no black, no max, no wb..? raw->params.document_mode = 2; // color scaling (clip,wb,max) and black point, but no demosaic raw->params.output_color = 0; raw->params.output_bps = 16; raw->params.user_flip = -1; // -1 means: use orientation from raw raw->params.gamm[0] = 1.0; raw->params.gamm[1] = 1.0; // raw->params.user_qual = img->raw_params.demosaic_method; // 3: AHD, 2: PPG, 1: VNG raw->params.user_qual = 0; // raw->params.four_color_rgb = img->raw_params.four_color_rgb; raw->params.four_color_rgb = 0; raw->params.use_camera_matrix = 0; raw->params.green_matching = 0; raw->params.highlight = 1; raw->params.threshold = 0; // raw->params.auto_bright_thr = img->raw_auto_bright_threshold; // raw->params.amaze_ca_refine = 0; raw->params.fbdd_noiserd = 0; ret = libraw_open_file(raw, filename); HANDLE_ERRORS(ret, 0); raw->params.user_qual = 0; raw->params.half_size = 0; ret = libraw_unpack(raw); // img->black = raw->color.black/65535.0; // img->maximum = raw->color.maximum/65535.0; img->bpp = sizeof(uint16_t); // printf("black, max: %d %d %f %f\n", raw->color.black, raw->color.maximum, img->black, img->maximum); HANDLE_ERRORS(ret, 1); ret = libraw_dcraw_process(raw); // ret = libraw_dcraw_document_mode_processing(raw); HANDLE_ERRORS(ret, 1); image = libraw_dcraw_make_mem_image(raw, &ret); HANDLE_ERRORS(ret, 1); // fallback for broken exif read in case of phase one H25 if(!strncmp(img->exif_maker, "Phase One", 9)) img->orientation = raw->sizes.flip; // filters seem only ever to take a useful value after unpack/process img->filters = raw->idata.filters; img->width = (img->orientation & 4) ? raw->sizes.height : raw->sizes.width; img->height = (img->orientation & 4) ? raw->sizes.width : raw->sizes.height; img->exif_iso = raw->other.iso_speed; img->exif_exposure = raw->other.shutter; img->exif_aperture = raw->other.aperture; img->exif_focal_length = raw->other.focal_len; g_strlcpy(img->exif_maker, raw->idata.make, sizeof(img->exif_maker)); img->exif_maker[sizeof(img->exif_maker) - 1] = 0x0; g_strlcpy(img->exif_model, raw->idata.model, sizeof(img->exif_model)); img->exif_model[sizeof(img->exif_model) - 1] = 0x0; dt_gettime_t(img->exif_datetime_taken, raw->other.timestamp); void *buf = dt_mipmap_cache_alloc(img, DT_MIPMAP_FULL, a); if(!buf) { libraw_recycle(raw); libraw_close(raw); free(image); return DT_IMAGEIO_CACHE_FULL; } #ifdef _OPENMP #pragma omp parallel for schedule(static) default(none) shared(img, image, raw, buf) #endif for(int k=0; k<img->width*img->height; k++) ((uint16_t *)buf)[k] = CLAMPS((((uint16_t *)image->data)[k] - raw->color.black)*65535.0f/(float)(raw->color.maximum - raw->color.black), 0, 0xffff); // clean up raw stuff. libraw_recycle(raw); libraw_close(raw); free(image); raw = NULL; image = NULL; img->flags &= ~DT_IMAGE_LDR; img->flags &= ~DT_IMAGE_HDR; img->flags |= DT_IMAGE_RAW; return DT_IMAGEIO_OK; }
// TODO: use orientation to correctly rotate the image. // maybe this should be (partly) in common/imageio.[c|h]? static void _lib_import_update_preview(GtkFileChooser *file_chooser, gpointer data) { GtkWidget *preview; char *filename; GdkPixbuf *pixbuf = NULL; gboolean have_preview = FALSE; preview = GTK_WIDGET(data); filename = gtk_file_chooser_get_preview_filename(file_chooser); if(!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) goto no_preview_fallback; // don't create dng thumbnails to avoid crashes in libtiff when these are hdr: char *c = filename + strlen(filename); while(c > filename && *c != '.') c--; if(!strcasecmp(c, ".dng")) goto no_preview_fallback; pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL); have_preview = (pixbuf != NULL); if(!have_preview) { // raw image thumbnail int ret; libraw_data_t *raw = libraw_init(0); libraw_processed_image_t *image = NULL; ret = libraw_open_file(raw, filename); if(ret) goto libraw_fail; ret = libraw_unpack_thumb(raw); if(ret) goto libraw_fail; ret = libraw_adjust_sizes_info_only(raw); if(ret) goto libraw_fail; image = libraw_dcraw_make_mem_thumb(raw, &ret); if(!image || ret) goto libraw_fail; // const int orientation = raw->sizes.flip; GdkPixbuf *tmp; GdkPixbufLoader *loader = gdk_pixbuf_loader_new(); have_preview = gdk_pixbuf_loader_write(loader, image->data, image->data_size, NULL); tmp = gdk_pixbuf_loader_get_pixbuf(loader); gdk_pixbuf_loader_close(loader, NULL); float ratio; if(image->type == LIBRAW_IMAGE_JPEG) { // jpeg dt_imageio_jpeg_t jpg; if(dt_imageio_jpeg_decompress_header(image->data, image->data_size, &jpg)) goto libraw_fail; ratio = 1.0*jpg.height/jpg.width; } else { // bmp -- totally untested ratio = 1.0*image->height/image->width; } int width = 128, height = 128*ratio; pixbuf = gdk_pixbuf_scale_simple(tmp, width, height, GDK_INTERP_BILINEAR); if(loader) g_object_unref(loader); // clean up raw stuff. libraw_recycle(raw); libraw_close(raw); free(image); if(0) { libraw_fail: // fprintf(stderr,"[imageio] %s: %s\n", filename, libraw_strerror(ret)); libraw_close(raw); have_preview = FALSE; } } if(!have_preview) { no_preview_fallback: pixbuf = gdk_pixbuf_new_from_inline(-1, dt_logo_128x128, FALSE, NULL); have_preview = TRUE; } if(have_preview) gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf); if(pixbuf) g_object_unref(pixbuf); g_free(filename); gtk_file_chooser_set_preview_widget_active(file_chooser, have_preview); }
static void _init_8( uint8_t *buf, uint32_t *width, uint32_t *height, const uint32_t imgid, const dt_mipmap_size_t size) { const uint32_t wd = *width, ht = *height; char filename[DT_MAX_PATH_LEN] = {0}; /* do not even try to process file if it isnt available */ dt_image_full_path(imgid, filename, DT_MAX_PATH_LEN); if (strlen(filename) == 0 || !g_file_test(filename, G_FILE_TEST_EXISTS)) { *width = *height = 0; return; } const int altered = dt_image_altered(imgid); int res = 1; const dt_image_t *cimg = dt_image_cache_read_get(darktable.image_cache, imgid); const int orientation = dt_image_orientation(cimg); // the orientation for this camera is not read correctly from exiv2, so we need // to go the full libraw path (as the thumbnail will be flipped the wrong way round) const int incompatible = !strncmp(cimg->exif_maker, "Phase One", 9); dt_image_cache_read_release(darktable.image_cache, cimg); // first try exif thumbnail, that's smaller and thus faster to load: if(!altered && !dt_conf_get_bool("never_use_embedded_thumb") && !dt_exif_thumbnail(filename, buf, wd, ht, orientation, width, height)) { res = 0; } else if(!altered && !dt_conf_get_bool("never_use_embedded_thumb") && !incompatible) { // try to load the embedded thumbnail in raw int ret; memset(filename, 0, DT_MAX_PATH_LEN); dt_image_full_path(imgid, filename, DT_MAX_PATH_LEN); const char *c = filename + strlen(filename); while(*c != '.' && c > filename) c--; if(!strcasecmp(c, ".jpg")) { // try to load jpg dt_imageio_jpeg_t jpg; if(!dt_imageio_jpeg_read_header(filename, &jpg)) { uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4); if(!dt_imageio_jpeg_read(&jpg, tmp)) { // scale to fit dt_iop_flip_and_zoom_8(tmp, jpg.width, jpg.height, buf, wd, ht, orientation, width, height); res = 0; } free(tmp); } } else { // raw image thumbnail libraw_data_t *raw = libraw_init(0); libraw_processed_image_t *image = NULL; ret = libraw_open_file(raw, filename); if(ret) goto libraw_fail; ret = libraw_unpack_thumb(raw); if(ret) goto libraw_fail; ret = libraw_adjust_sizes_info_only(raw); if(ret) goto libraw_fail; image = libraw_dcraw_make_mem_thumb(raw, &ret); if(!image || ret) goto libraw_fail; const int orientation = raw->sizes.flip; if(image->type == LIBRAW_IMAGE_JPEG) { // JPEG: decode (directly rescaled to mip4) dt_imageio_jpeg_t jpg; if(dt_imageio_jpeg_decompress_header(image->data, image->data_size, &jpg)) goto libraw_fail; uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4); if(dt_imageio_jpeg_decompress(&jpg, tmp)) { free(tmp); goto libraw_fail; } // scale to fit dt_iop_flip_and_zoom_8(tmp, jpg.width, jpg.height, buf, wd, ht, orientation, width, height); free(tmp); res = 0; } // clean up raw stuff. libraw_recycle(raw); libraw_close(raw); free(image); if(0) { libraw_fail: // fprintf(stderr,"[imageio] %s: %s\n", filename, libraw_strerror(ret)); libraw_close(raw); res = 1; } } } if(res) { // try the real thing: rawspeed + pixelpipe dt_imageio_module_format_t format; _dummy_data_t dat; format.bpp = _bpp; format.write_image = _write_image; format.levels = _levels; dat.head.max_width = wd; dat.head.max_height = ht; dat.buf = buf; // export with flags: ignore exif (don't load from disk), don't swap byte order, don't do hq processing, and signal we want thumbnail export res = dt_imageio_export_with_flags(imgid, "unused", &format, (dt_imageio_module_data_t *)&dat, 1, 1, 0, 1, NULL); if(!res) { // might be smaller, or have a different aspect than what we got as input. *width = dat.head.width; *height = dat.head.height; } } // fprintf(stderr, "[mipmap init 8] export image %u finished (sizes %d %d => %d %d)!\n", imgid, wd, ht, dat.head.width, dat.head.height); // any errors? if(res) { // fprintf(stderr, "[mipmap_cache] could not process thumbnail!\n"); *width = *height = 0; return; } // TODO: various speed optimizations: // TODO: also init all smaller mips! // TODO: use mipf, but: // TODO: if output is cropped, don't use mipf! }