// 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; }
jbyteArray Java_org_libraw_LibRaw_getThumbFromBuffer(JNIEnv* env, jclass clazz, jbyteArray bufferBytes) { libraw_data_t * data; jbyte* buffer; jsize len; jbyteArray ret; libraw_processed_image_t * image; data = libraw_init(0); len = (*env)->GetArrayLength(env, bufferBytes); buffer = (*env)->GetByteArrayElements(env, bufferBytes, NULL); libraw_open_buffer(data, (void *) buffer, (size_t) len); libraw_unpack_thumb(data); image = libraw_dcraw_make_mem_thumb(data, 0); ret = (*env)->NewByteArray(env, image->data_size); (*env)->SetByteArrayRegion(env, ret, 0, image->data_size, (jbyte *) image->data); (*env)->ReleaseByteArrayElements(env, bufferBytes, buffer, 0); return ret; }
// 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! }
static GthImage * _cairo_image_surface_create_from_raw (GInputStream *istream, GthFileData *file_data, int requested_size, int *original_width, int *original_height, gpointer user_data, GCancellable *cancellable, GError **error) { libraw_data_t *raw_data; int result; void *buffer = NULL; size_t size; GthImage *image = NULL; raw_data = libraw_init (LIBRAW_OPIONS_NO_MEMERR_CALLBACK | LIBRAW_OPIONS_NO_DATAERR_CALLBACK); if (raw_data == NULL) { _libraw_set_gerror (error, errno); goto fatal_error; } libraw_set_progress_handler (raw_data, _libraw_progress_cb, cancellable); if (! _g_input_stream_read_all (istream, &buffer, &size, cancellable, error)) goto fatal_error; raw_data->params.output_tiff = FALSE; raw_data->params.use_camera_wb = TRUE; raw_data->params.use_rawspeed = TRUE; raw_data->params.highlight = FALSE; raw_data->params.use_camera_matrix = TRUE; raw_data->params.output_color = RAW_OUTPUT_COLOR_SRGB; raw_data->params.output_bps = 8; raw_data->params.half_size = (requested_size > 0); result = libraw_open_buffer (raw_data, buffer, size); if (LIBRAW_FATAL_ERROR (result)) { _libraw_set_gerror (error, result); goto fatal_error; } /* */ #if RAW_USE_EMBEDDED_THUMBNAIL if (requested_size > 0) { /* read the thumbnail */ result = libraw_unpack_thumb (raw_data); if (result != LIBRAW_SUCCESS) { _libraw_set_gerror (error, result); goto fatal_error; } switch (raw_data->thumbnail.tformat) { case LIBRAW_THUMBNAIL_JPEG: image = _libraw_read_jpeg_data (raw_data->thumbnail.thumb, raw_data->thumbnail.tlength, requested_size, cancellable, error); break; case LIBRAW_THUMBNAIL_BITMAP: image = _libraw_read_bitmap_data (raw_data->thumbnail.twidth, raw_data->thumbnail.theight, raw_data->thumbnail.tcolors, 8, (guchar *) raw_data->thumbnail.thumb, raw_data->thumbnail.tlength); break; default: g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Unsupported data format"); break; } if ((image != NULL) && (_libraw_get_tranform (raw_data) != GTH_TRANSFORM_NONE)) { cairo_surface_t *surface; cairo_surface_t *rotated; surface = gth_image_get_cairo_surface (image); rotated = _cairo_image_surface_transform (surface, _libraw_get_tranform (raw_data)); gth_image_set_cairo_surface (image, rotated); cairo_surface_destroy (rotated); cairo_surface_destroy (surface); } } else #endif { /* read the image */ libraw_processed_image_t *processed_image; result = libraw_unpack (raw_data); if (result != LIBRAW_SUCCESS) { _libraw_set_gerror (error, result); goto fatal_error; } result = libraw_dcraw_process (raw_data); if (result != LIBRAW_SUCCESS) { _libraw_set_gerror (error, result); goto fatal_error; } processed_image = libraw_dcraw_make_mem_image (raw_data, &result); if (result != LIBRAW_SUCCESS) { _libraw_set_gerror (error, result); goto fatal_error; } switch (processed_image->type) { case LIBRAW_IMAGE_JPEG: image = _libraw_read_jpeg_data (processed_image->data, processed_image->data_size, -1, cancellable, error); break; case LIBRAW_IMAGE_BITMAP: image = _libraw_read_bitmap_data (processed_image->width, processed_image->height, processed_image->colors, processed_image->bits, processed_image->data, processed_image->data_size); break; default: g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Unsupported data format"); break; } libraw_dcraw_clear_mem (processed_image); } /* get the original size */ if ((original_width != NULL) && (original_height != NULL)) { result = libraw_adjust_sizes_info_only (raw_data); if (result != LIBRAW_SUCCESS) { _libraw_set_gerror (error, result); goto fatal_error; } *original_width = raw_data->sizes.iwidth; *original_height = raw_data->sizes.iheight; } fatal_error: if (raw_data != NULL) libraw_close (raw_data); g_free (buffer); return image; }