diff --git a/djvu.c b/djvu.c index 6182fb5f7..066956337 100644 --- a/djvu.c +++ b/djvu.c @@ -85,11 +85,10 @@ static int openDocument(lua_State *L) { ddjvu_cache_set_size(doc->context, (unsigned long)cache_size); doc->doc_ref = ddjvu_document_create_by_filename_utf8(doc->context, filename, TRUE); + if (! doc->doc_ref) + return luaL_error(L, "cannot open DjVu file <%s>", filename); while (! ddjvu_document_decoding_done(doc->doc_ref)) handle(L, doc->context, True); - if (! doc->doc_ref) { - return luaL_error(L, "cannot open DjVu file <%s>", filename); - } doc->pixelformat = ddjvu_format_create(DDJVU_FORMAT_GREY8, 0, NULL); if (! doc->pixelformat) { @@ -254,20 +253,65 @@ static int getOriginalPageSize(lua_State *L) { lua_pushnumber(L, info.width); lua_pushnumber(L, info.height); - lua_pushnumber(L, info.dpi); - return 3; + return 2; } static int getPageInfo(lua_State *L) { DjvuDocument *doc = (DjvuDocument*) luaL_checkudata(L, 1, "djvudocument"); int pageno = luaL_checkint(L, 2); ddjvu_page_t *djvu_page; + int page_width, page_height, page_dpi; + double page_gamma; + ddjvu_page_type_t page_type; + char *page_type_str; + djvu_page = ddjvu_page_create_by_pageno(doc->doc_ref, pageno - 1); - if (!djvu_page) + if (! djvu_page) return luaL_error(L, "cannot create djvu_page #%d", pageno); + while (! ddjvu_page_decoding_done(djvu_page)) handle(L, doc->context, TRUE); + + page_width = ddjvu_page_get_width(djvu_page); + lua_pushnumber(L, page_width); + + page_height = ddjvu_page_get_height(djvu_page); + lua_pushnumber(L, page_height); + + page_dpi = ddjvu_page_get_resolution(djvu_page); + lua_pushnumber(L, page_dpi); + + page_gamma = ddjvu_page_get_gamma(djvu_page); + lua_pushnumber(L, page_gamma); + + page_type = ddjvu_page_get_type(djvu_page); + switch (page_type) { + case DDJVU_PAGETYPE_UNKNOWN: + page_type_str = "UNKNOWN"; + break; + + case DDJVU_PAGETYPE_BITONAL: + page_type_str = "BITONAL"; + break; + + case DDJVU_PAGETYPE_PHOTO: + page_type_str = "PHOTO"; + break; + + case DDJVU_PAGETYPE_COMPOUND: + page_type_str = "COMPOUND"; + break; + + default: + page_type_str = "INVALID"; + break; + } + lua_pushstring(L, page_type_str); + + ddjvu_page_release(djvu_page); + + return 5; } /*