Flip conditionals to positive logic in pdfium_test.

samples/pdfium_test.cc

 // Copyright (c) 2010 The Chromium 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 <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <list>
@@ skipping 451 matching lines @@
   FX_DOWNLOADHINTS hints;
   memset(&hints, '\0', sizeof(hints));
   hints.version = 1;
   hints.AddSegment = Add_Segment;
 
   FPDF_DOCUMENT doc;
   FPDF_AVAIL pdf_avail = FPDFAvail_Create(&file_avail, &file_access);
 
   (void)FPDFAvail_IsDocAvail(pdf_avail, &hints);
 
-  if (!FPDFAvail_IsLinearized(pdf_avail)) {
+  if (FPDFAvail_IsLinearized(pdf_avail)) {
+    fprintf(stderr, "Linearized path...\n");
+    doc = FPDFAvail_GetDocument(pdf_avail, nullptr);
+  } else {
     fprintf(stderr, "Non-linearized path...\n");
     doc = FPDF_LoadCustomDocument(&file_access, nullptr);
-  } else {
-    fprintf(stderr, "Linearized path...\n");
-    doc = FPDFAvail_GetDocument(pdf_avail, nullptr);
+  }
+
+  if (!doc) {
+    fprintf(stderr, "Load pdf docs unsuccessful.\n");
+    return;
   }
 
   (void)FPDF_GetDocPermissions(doc);
   (void)FPDFAvail_IsFormAvail(pdf_avail, &hints);
 
   FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks);
   FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD);
   FPDF_SetFormFieldHighlightAlpha(form, 100);
 
   int first_page = FPDFAvail_GetFirstPageNum(doc);
@@ skipping 116 matching lines @@
   v8::StartupData natives;
   v8::StartupData snapshot;
   if (!GetExternalData(options, "natives_blob.bin", &natives) ||
       !GetExternalData(options, "snapshot_blob.bin", &snapshot)) {
     return 1;
   }
   v8::V8::SetNativesDataBlob(&natives);
   v8::V8::SetSnapshotDataBlob(&snapshot);
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 
-  if (!options.font_directory.empty()) {
+  if (options.font_directory.empty()) {
+    FPDF_InitLibrary();
+  } else {
     const char* path_array[2];
     path_array[0] = options.font_directory.c_str();
     path_array[1] = nullptr;
     FPDF_LIBRARY_CONFIG config;
     config.version = 1;
     config.m_pUserFontPaths = path_array;
     FPDF_InitLibraryWithConfig(&config);
-  } else {
-    FPDF_InitLibrary();
   }
 
   UNSUPPORT_INFO unsuppored_info;
   memset(&unsuppored_info, '\0', sizeof(unsuppored_info));
   unsuppored_info.version = 1;
   unsuppored_info.FSDK_UnSupport_Handler = ExampleUnsupportedHandler;
 
   FSDK_SetUnSpObjProcessHandler(&unsuppored_info);
 
   while (!files.empty()) {
     std::string filename = files.front();
     files.pop_front();
     size_t file_length = 0;
     char* file_contents = GetFileContents(filename.c_str(), &file_length);
     if (!file_contents)
       continue;
     RenderPdf(filename, file_contents, file_length, options);
     free(file_contents);
   }
 
   FPDF_DestroyLibrary();
   v8::V8::ShutdownPlatform();
   delete platform;
 
   return 0;
 }