From fd5ae3f7cf077d00af0ce3082376f4051c499c5d Mon Sep 17 00:00:00 2001 From: npm Date: Fri, 21 Oct 2016 09:42:33 -0700 Subject: Revert of Fix loading page using hint tables. (patchset #5 id:80001 of https://codereview.chromium.org/2437773003/ ) Reason for revert: CPDF_DataAvail::IsPageAvail is causing crashes. BUG=chromium:658168, chromium:658170 Original issue's description: > Fix loading page using hint tables. > > When linearized document have hint table, > The FPDFAvail_IsPageAvail return true, but > FPDF_LoadPage return nullptr, for non first pages. > > This happens, bacause document not use hint tables, to load page. > > To fix this, I force save the page's ObjNum in document. > > R=npm, dsinclair > > Committed: https://pdfium.googlesource.com/pdfium/+/ef38283688c1ee7c08bcf4204cfb78e09c039782 TBR=dsinclair@chromium.org,tsepez@chromium.org,thestig@chromium.org,art-snake@yandex-team.ru # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review-Url: https://chromiumcodereview.appspot.com/2442663005 --- BUILD.gn | 1 - core/fpdfapi/parser/cpdf_data_avail.cpp | 11 +------ core/fpdfapi/parser/cpdf_document.cpp | 4 +-- core/fpdfapi/parser/cpdf_document_unittest.cpp | 42 -------------------------- 4 files changed, 2 insertions(+), 56 deletions(-) delete mode 100644 core/fpdfapi/parser/cpdf_document_unittest.cpp diff --git a/BUILD.gn b/BUILD.gn index c9f85fa0ed..1af2c28c55 100644 --- a/BUILD.gn +++ b/BUILD.gn @@ -1634,7 +1634,6 @@ test("pdfium_unittests") { "core/fpdfapi/page/fpdf_page_parser_old_unittest.cpp", "core/fpdfapi/page/fpdf_page_parser_unittest.cpp", "core/fpdfapi/parser/cpdf_array_unittest.cpp", - "core/fpdfapi/parser/cpdf_document_unittest.cpp", "core/fpdfapi/parser/cpdf_object_unittest.cpp", "core/fpdfapi/parser/cpdf_parser_unittest.cpp", "core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp", diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp index e52d0611f9..e23aa8ecfb 100644 --- a/core/fpdfapi/parser/cpdf_data_avail.cpp +++ b/core/fpdfapi/parser/cpdf_data_avail.cpp @@ -1625,8 +1625,6 @@ CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsPageAvail( nResult = m_pHintTables->CheckPage(dwPage, pHints); if (nResult != DataAvailable) return nResult; - // We should say to the document, which object is the page. - m_pDocument->SetPageObjNum(dwPage, GetPage(dwPage)->GetObjNum()); m_pagesLoadState.insert(dwPage); return DataAvailable; } @@ -1765,18 +1763,11 @@ CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) { uint32_t dwObjNum = 0; bool bPagePosGot = m_pHintTables->GetPagePos(index, &szPageStartPos, &szPageLength, &dwObjNum); - if (!dwObjNum) - return nullptr; - // Page object already can be parsed in document. - CPDF_Object* pPageDict = m_pDocument->GetIndirectObject(dwObjNum); - if (pPageDict) - return pPageDict->GetDict(); - if (!bPagePosGot) return nullptr; m_syntaxParser.InitParser(m_pFileRead, (uint32_t)szPageStartPos); - pPageDict = ParseIndirectObjectAt(0, dwObjNum, m_pDocument); + CPDF_Object* pPageDict = ParseIndirectObjectAt(0, dwObjNum, m_pDocument); if (!pPageDict) return nullptr; diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp index 5f64c14d31..c5f64a790c 100644 --- a/core/fpdfapi/parser/cpdf_document.cpp +++ b/core/fpdfapi/parser/cpdf_document.cpp @@ -425,9 +425,7 @@ CPDF_Document::CPDF_Document(std::unique_ptr pParser) CPDF_Document::~CPDF_Document() { delete m_pDocPage; - if (CPDF_ModuleMgr::Get()->GetPageModule()) { - CPDF_ModuleMgr::Get()->GetPageModule()->ClearStockFont(this); - } + CPDF_ModuleMgr::Get()->GetPageModule()->ClearStockFont(this); m_pByteStringPool.DeleteObject(); // Make weak. } diff --git a/core/fpdfapi/parser/cpdf_document_unittest.cpp b/core/fpdfapi/parser/cpdf_document_unittest.cpp deleted file mode 100644 index 128b8d91c4..0000000000 --- a/core/fpdfapi/parser/cpdf_document_unittest.cpp +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2016 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "core/fpdfapi/parser/cpdf_document.h" - -#include - -#include "core/fpdfapi/parser/cpdf_parser.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" -#include "core/fxcrt/fx_memory.h" -#include "testing/gtest/include/gtest/gtest.h" - -namespace { - -using ScopedDictionary = - std::unique_ptr>; - -} // namespace - -TEST(cpdf_document, UseCachedPageObjNumIfHaveNotPagesDict) { - // ObjNum can be added in CPDF_DataAvail::IsPageAvail, and PagesDict - // can be not exists in this case. - // (case, when hint table is used to page check in CPDF_DataAvail). - std::unique_ptr parser(new CPDF_Parser()); - CPDF_Document document(std::move(parser)); - ScopedDictionary dict(new CPDF_Dictionary()); - const int page_count = 100; - dict->SetIntegerFor("N", page_count); - document.LoadLinearizedDoc(dict.get()); - ASSERT_EQ(page_count, document.GetPageCount()); - CPDF_Object* page_stub = new CPDF_Dictionary(); - const uint32_t obj_num = document.AddIndirectObject(page_stub); - const int test_page_num = 33; - - EXPECT_FALSE(document.IsPageLoaded(test_page_num)); - EXPECT_EQ(nullptr, document.GetPage(test_page_num)); - - document.SetPageObjNum(test_page_num, obj_num); - EXPECT_TRUE(document.IsPageLoaded(test_page_num)); - EXPECT_EQ(page_stub, document.GetPage(test_page_num)); -} -- cgit v1.2.3