+ eassert(!ferror(screenshots_file));
+ eassert(!feof(screenshots_file));
+
+ eassert(npages < MAX_PAGES);
+ page_images[npages++]= im;
+}
+
+void read_one_screenshot(void) {
+ progress("reading screenshot...");
+ file_read_image_ppm(screenshots_file);
+ progress_log("read screenshot.");