Revert of Updating OTS repo from https://github.com/khaledhosny/ots.git

third_party/ots/test/idempotent.cc

-// Copyright (c) 2009 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.
-
-#if !defined(_WIN32)
-#ifdef __linux__
-// Linux
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_OUTLINE_H
-#else
-// Mac OS X
-#include <ApplicationServices/ApplicationServices.h>  // g++ -framework Cocoa
-#endif  // __linux__
-#include <unistd.h>
-#else
-// Windows
-#include <io.h>
-#include <Windows.h>
-#endif  // !defiend(_WIN32)
-
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-
-#include "opentype-sanitiser.h"
-#include "ots-memory-stream.h"
-
-namespace {
-
-int Usage(const char *argv0) {
-  std::fprintf(stderr, "Usage: %s <ttf file>\n", argv0);
-  return 1;
-}
-
-bool ReadFile(const char *file_name, uint8_t **data, size_t *file_size);
-bool DumpResults(const uint8_t *result1, const size_t len1,
-                 const uint8_t *result2, const size_t len2);
-
-#if defined(_WIN32)
-#define ADDITIONAL_OPEN_FLAGS O_BINARY
-#else
-#define ADDITIONAL_OPEN_FLAGS 0
-#endif
-
-bool ReadFile(const char *file_name, uint8_t **data, size_t *file_size) {
-  const int fd = open(file_name, O_RDONLY | ADDITIONAL_OPEN_FLAGS);
-  if (fd < 0) {
-    return false;
-  }
-
-  struct stat st;
-  fstat(fd, &st);
-
-  *file_size = st.st_size;
-  *data = new uint8_t[st.st_size];
-  if (read(fd, *data, st.st_size) != st.st_size) {
-    close(fd);
-    return false;
-  }
-  close(fd);
-  return true;
-}
-
-bool DumpResults(const uint8_t *result1, const size_t len1,
-                 const uint8_t *result2, const size_t len2) {
-  int fd1 = open("out1.ttf",
-                 O_WRONLY | O_CREAT | O_TRUNC | ADDITIONAL_OPEN_FLAGS, 0600);
-  int fd2 = open("out2.ttf",
-                 O_WRONLY | O_CREAT | O_TRUNC | ADDITIONAL_OPEN_FLAGS, 0600);
-  if (fd1 < 0 || fd2 < 0) {
-    perror("opening output file");
-    return false;
-  }
-  if ((write(fd1, result1, len1) < 0) ||
-      (write(fd2, result2, len2) < 0)) {
-    perror("writing output file");
-    close(fd1);
-    close(fd2);
-    return false;
-  }
-  close(fd1);
-  close(fd2);
-  return true;
-}
-
-// Platform specific implementations.
-bool VerifyTranscodedFont(uint8_t *result, const size_t len);
-
-#if defined(__linux__)
-// Linux
-bool VerifyTranscodedFont(uint8_t *result, const size_t len) {
-  FT_Library library;
-  FT_Error error = ::FT_Init_FreeType(&library);
-  if (error) {
-    return false;
-  }
-  FT_Face dummy;
-  error = ::FT_New_Memory_Face(library, result, len, 0, &dummy);
-  if (error) {
-    return false;
-  }
-  ::FT_Done_Face(dummy);
-  return true;
-}
-
-#elif defined(__APPLE_CC__)
-// Mac
-bool VerifyTranscodedFont(uint8_t *result, const size_t len) {
-  CFDataRef data = CFDataCreate(0, result, len);
-  if (!data) {
-    return false;
-  }
-
-  CGDataProviderRef dataProvider = CGDataProviderCreateWithCFData(data);
-  CGFontRef cgFontRef = CGFontCreateWithDataProvider(dataProvider);
-  CGDataProviderRelease(dataProvider);
-  CFRelease(data);
-  if (!cgFontRef) {
-    return false;
-  }
-
-  size_t numGlyphs = CGFontGetNumberOfGlyphs(cgFontRef);
-  CGFontRelease(cgFontRef);
-  if (!numGlyphs) {
-    return false;
-  }
-  return true;
-}
-
-#elif defined(_WIN32)
-// Windows
-bool VerifyTranscodedFont(uint8_t *result, const size_t len) {
-  DWORD num_fonts = 0;
-  HANDLE handle = AddFontMemResourceEx(result, len, 0, &num_fonts);
-  if (!handle) {
-    return false;
-  }
-  RemoveFontMemResourceEx(handle);
-  return true;
-}
-
-#else
-bool VerifyTranscodedFont(uint8_t *result, const size_t len) {
-  std::fprintf(stderr, "Can't verify the transcoded font on this platform.\n");
-  return false;
-}
-
-#endif
-
-}  // namespace
-
-int main(int argc, char **argv) {
-  if (argc != 2) return Usage(argv[0]);
-
-  size_t file_size = 0;
-  uint8_t *data = 0;
-  if (!ReadFile(argv[1], &data, &file_size)) {
-    std::fprintf(stderr, "Failed to read file!\n");
-    return 1;
-  }
-
-  // A transcoded font is usually smaller than an original font.
-  // However, it can be slightly bigger than the original one due to
-  // name table replacement and/or padding for glyf table.
-  //
-  // However, a WOFF font gets decompressed and so can be *much* larger than
-  // the original.
-  uint8_t *result = new uint8_t[file_size * 8];
-  ots::MemoryStream output(result, file_size * 8);
-
-  ots::OTSContext context;
-
-  bool r = context.Process(&output, data, file_size);
-  if (!r) {
-    std::fprintf(stderr, "Failed to sanitise file!\n");
-    return 1;
-  }
-  const size_t result_len = output.Tell();
-  delete[] data;
-
-  uint8_t *result2 = new uint8_t[result_len];
-  ots::MemoryStream output2(result2, result_len);
-  r = context.Process(&output2, result, result_len);
-  if (!r) {
-    std::fprintf(stderr, "Failed to sanitise previous output!\n");
-    return 1;
-  }
-  const size_t result2_len = output2.Tell();
-
-  bool dump_results = false;
-  if (result2_len != result_len) {
-    std::fprintf(stderr, "Outputs differ in length\n");
-    dump_results = true;
-  } else if (std::memcmp(result2, result, result_len)) {
-    std::fprintf(stderr, "Outputs differ in content\n");
-    dump_results = true;
-  }
-
-  if (dump_results) {
-    std::fprintf(stderr, "Dumping results to out1.tff and out2.tff\n");
-    if (!DumpResults(result, result_len, result2, result2_len)) {
-      std::fprintf(stderr, "Failed to dump output files.\n");
-      return 1;
-    }
-  }
-
-  // Verify that the transcoded font can be opened by the font renderer for
-  // Linux (FreeType2), Mac OS X, or Windows.
-  if (!VerifyTranscodedFont(result, result_len)) {
-    std::fprintf(stderr, "Failed to verify the transcoded font\n");
-    return 1;
-  }
-
-  return 0;
-}