chromium/third_party/pdfium/core/fpdfapi/font/cpdf_fontencoding.cpp

// Copyright 2016 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "core/fpdfapi/font/cpdf_fontencoding.h"

#include <iterator>
#include <optional>

#include "constants/font_encodings.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/fpdf_parser_decode.h"
#include "core/fxcrt/compiler_specific.h"
#include "core/fxge/fx_font.h"
#include "core/fxge/fx_fontencoding.h"

namespace {

constexpr std::array<uint16_t, CPDF_FontEncoding::kEncodingTableSize>
    kMSSymbolEncoding = …;

constexpr std::array<uint16_t, CPDF_FontEncoding::kEncodingTableSize>
    kStandardEncoding = …;

constexpr std::array<uint16_t, CPDF_FontEncoding::kEncodingTableSize>
    kMacRomanEncoding = …;

const uint16_t kAdobeWinAnsiEncoding[CPDF_FontEncoding::kEncodingTableSize] = …;

const uint16_t kMacExpertEncoding[CPDF_FontEncoding::kEncodingTableSize] = …;

const uint16_t kAdobeSymbolEncoding[CPDF_FontEncoding::kEncodingTableSize] = …;

const uint16_t kZapfEncoding[CPDF_FontEncoding::kEncodingTableSize] = …;

constexpr size_t kEncodingTableFirstChar = …;
constexpr size_t kEncodingNamesTableSize = …;
constexpr size_t kPDFDocEncodingTableFirstChar = …;
constexpr size_t kPDFDocEncodingNamesTableSize = …;

constexpr std::array<const char*, kEncodingNamesTableSize>
    kStandardEncodingNames = …;

constexpr std::array<const char*, kEncodingNamesTableSize>
    kAdobeWinAnsiEncodingNames = …;

constexpr std::array<const char*, kEncodingNamesTableSize>
    kMacRomanEncodingNames = …;

constexpr std::array<const char*, kEncodingNamesTableSize>
    kMacExpertEncodingNames = …;

constexpr std::array<const char*, kPDFDocEncodingNamesTableSize>
    kPDFDocEncodingNames = …;

constexpr std::array<const char*, kEncodingNamesTableSize>
    kAdobeSymbolEncodingNames = …;

constexpr std::array<const char*, kEncodingNamesTableSize> kZapfEncodingNames = …;

uint32_t PDF_FindCode(pdfium::span<const uint16_t> pCodes, uint16_t unicode) { … }

}  // namespace

int CPDF_FontEncoding::CharCodeFromUnicode(wchar_t unicode) const { … }

CPDF_FontEncoding::CPDF_FontEncoding(FontEncoding predefined_encoding) { … }

bool CPDF_FontEncoding::IsIdentical(const CPDF_FontEncoding* pAnother) const { … }

RetainPtr<CPDF_Object> CPDF_FontEncoding::Realize(
    WeakPtr<ByteStringPool> pPool) const { … }

uint32_t CharCodeFromUnicodeForEncoding(fxge::FontEncoding encoding,
                                        wchar_t unicode) { … }

wchar_t UnicodeFromAppleRomanCharCode(uint8_t charcode) { … }

pdfium::span<const uint16_t> UnicodesForPredefinedCharSet(
    FontEncoding encoding) { … }

const char* CharNameFromPredefinedCharSet(FontEncoding encoding,
                                          uint8_t charcode) { … }