Allow external font-path configuration from 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 28 matching lines @@
 #endif
 };
 
 struct Options {
   Options() : output_format(OUTPUT_NONE) { }
 
   OutputFormat output_format;
   std::string scale_factor_as_string;
   std::string exe_path;
   std::string bin_directory;
+  std::string font_directory;
 };
 
 // Reads the entire contents of a file into a newly malloc'd buffer.
 static char* GetFileContents(const char* filename, size_t* retlen) {
   FILE* file = fopen(filename, "rb");
   if (!file) {
     fprintf(stderr, "Failed to open: %s\n", filename);
     return NULL;
   }
   (void) fseek(file, 0, SEEK_END);
@@ skipping 281 matching lines @@
         fprintf(stderr, "Duplicate or conflicting --ppm argument\n");
         return false;
       }
       options->output_format = OUTPUT_PPM;
     } else if (cur_arg == "--png") {
       if (options->output_format != OUTPUT_NONE) {
         fprintf(stderr, "Duplicate or conflicting --png argument\n");
         return false;
       }
       options->output_format = OUTPUT_PNG;
+    } else if (cur_arg.size() > 11 &&
+               cur_arg.compare(0, 11, "--font-dir=") == 0) {
+      if (!options->font_directory.empty()) {
+        fprintf(stderr, "Duplicate --font-dir argument\n");
+        return false;
+      }
+      options->font_directory = cur_arg.substr(11);
     }
+
 #ifdef _WIN32
     else if (cur_arg == "--emf") {
       if (options->output_format != OUTPUT_NONE) {
         fprintf(stderr, "Duplicate or conflicting --emf argument\n");
         return false;
       }
       options->output_format = OUTPUT_EMF;
     }
     else if (cur_arg == "--bmp") {
       if (options->output_format != OUTPUT_NONE) {
@@ skipping 192 matching lines @@
   FPDFDOC_ExitFormFillEnvironment(form);
   FPDF_CloseDocument(doc);
   FPDFAvail_Destroy(pdf_avail);
 
   fprintf(stderr, "Rendered %d pages.\n", rendered_pages);
   fprintf(stderr, "Skipped %d bad pages.\n", bad_pages);
 }
 
 static const char usage_string[] =
     "Usage: pdfium_test [OPTION] [FILE]...\n"
-    "  --bin-dir=<path> - override path to v8 external data\n"
-    "  --scale=<number> - scale output size by number (e.g. 0.5)\n"
+    "  --bin-dir=<path>  - override path to v8 external data\n"
+    "  --font-dir=<path> - override path to external fonts\n"
+    "  --scale=<number>  - scale output size by number (e.g. 0.5)\n"
 #ifdef _WIN32
     "  --bmp - write page images <pdf-name>.<page-number>.bmp\n"
     "  --emf - write page meta files <pdf-name>.<page-number>.emf\n"
 #endif
     "  --png - write page images <pdf-name>.<page-number>.png\n"
     "  --ppm - write page images <pdf-name>.<page-number>.ppm\n";
 
 int main(int argc, const char* argv[]) {
   std::vector<std::string> args(argv, argv + argc);
   Options options;
@@ skipping 17 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
 
-  FPDF_InitLibrary();
+  if (!options.font_directory.empty()) {
+    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;
 }