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; }
GthImage * _cairo_image_surface_create_from_tiff (GInputStream *istream, GthFileData *file_data, int requested_size, int *original_width_p, int *original_height_p, gboolean *loaded_original_p, gpointer user_data, GCancellable *cancellable, GError **error) { GthImage *image; Handle handle; TIFF *tif; gboolean first_directory; int best_directory; int max_width, max_height, min_diff; uint32 image_width; uint32 image_height; uint32 spp; uint16 extrasamples; uint16 *sampleinfo; uint16 orientation; char emsg[1024]; cairo_surface_t *surface; cairo_surface_metadata_t*metadata; uint32 *raster; image = gth_image_new (); handle.cancellable = cancellable; handle.size = 0; if ((file_data != NULL) && (file_data->info != NULL)) { handle.istream = g_buffered_input_stream_new (istream); handle.size = g_file_info_get_size (file_data->info); } else { void *data; gsize size; /* read the whole stream to get the file size */ if (! _g_input_stream_read_all (istream, &data, &size, cancellable, error)) return image; handle.istream = g_memory_input_stream_new_from_data (data, size, g_free); handle.size = size; } TIFFSetErrorHandler (tiff_error_handler); TIFFSetWarningHandler (tiff_error_handler); tif = TIFFClientOpen ("gth-tiff-reader", "r", &handle, tiff_read, tiff_write, tiff_seek, tiff_close, tiff_size, NULL, NULL); if (tif == NULL) { g_object_unref (handle.istream); g_set_error_literal (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY, "Couldn't allocate memory for writing TIFF file"); return image; } /* find the best image to load */ first_directory = TRUE; best_directory = -1; max_width = -1; max_height = -1; min_diff = 0; do { int width; int height; if (TIFFGetField (tif, TIFFTAG_IMAGEWIDTH, &width) != 1) continue; if (TIFFGetField (tif, TIFFTAG_IMAGELENGTH, &height) != 1) continue; if (! TIFFRGBAImageOK (tif, emsg)) continue; if (width > max_width) { max_width = width; max_height = height; if (requested_size <= 0) best_directory = TIFFCurrentDirectory (tif); } if (requested_size > 0) { int diff = abs (requested_size - width); if (first_directory) { min_diff = diff; best_directory = TIFFCurrentDirectory (tif); } else if (diff < min_diff) { min_diff = diff; best_directory = TIFFCurrentDirectory (tif); } } first_directory = FALSE; } while (TIFFReadDirectory (tif)); if (best_directory == -1) { TIFFClose (tif); g_object_unref (handle.istream); g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Invalid TIFF format"); return image; } /* read the image */ TIFFSetDirectory (tif, best_directory); TIFFGetField (tif, TIFFTAG_IMAGEWIDTH, &image_width); TIFFGetField (tif, TIFFTAG_IMAGELENGTH, &image_height); TIFFGetField (tif, TIFFTAG_SAMPLESPERPIXEL, &spp); TIFFGetFieldDefaulted (tif, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo); if (TIFFGetFieldDefaulted (tif, TIFFTAG_ORIENTATION, &orientation) != 1) orientation = ORIENTATION_TOPLEFT; if (original_width_p) *original_width_p = max_width; if (original_height_p) *original_height_p = max_height; if (loaded_original_p) *loaded_original_p = (max_width == image_width); surface = _cairo_image_surface_create (CAIRO_FORMAT_ARGB32, image_width, image_height); if (surface == NULL) { TIFFClose (tif); g_object_unref (handle.istream); g_set_error_literal (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY, "Couldn't allocate memory for writing TIFF file"); return image; } metadata = _cairo_image_surface_get_metadata (surface); _cairo_metadata_set_has_alpha (metadata, (extrasamples == 1) || (spp == 4)); _cairo_metadata_set_original_size (metadata, max_width, max_height); raster = (uint32*) _TIFFmalloc (image_width * image_height * sizeof (uint32)); if (raster == NULL) { cairo_surface_destroy (surface); TIFFClose (tif); g_object_unref (handle.istream); g_set_error_literal (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY, "Couldn't allocate memory for writing TIFF file"); return image; } if (TIFFReadRGBAImageOriented (tif, image_width, image_height, raster, orientation, 0)) { guchar *surface_row; int line_step; int x, y, temp; guchar r, g, b, a; uint32 *src_pixel; surface_row = _cairo_image_surface_flush_and_get_data (surface); line_step = cairo_image_surface_get_stride (surface); src_pixel = raster; for (y = 0; y < image_height; y++) { guchar *dest_pixel = surface_row; if (g_cancellable_is_cancelled (cancellable)) goto stop_loading; for (x = 0; x < image_width; x++) { r = TIFFGetR (*src_pixel); g = TIFFGetG (*src_pixel); b = TIFFGetB (*src_pixel); a = TIFFGetA (*src_pixel); CAIRO_SET_RGBA (dest_pixel, r, g, b, a); dest_pixel += 4; src_pixel += 1; } surface_row += line_step; } } stop_loading: cairo_surface_mark_dirty (surface); if (! g_cancellable_is_cancelled (cancellable)) gth_image_set_cairo_surface (image, surface); _TIFFfree (raster); cairo_surface_destroy (surface); TIFFClose (tif); g_object_unref (handle.istream); return image; }