chromium/third_party/pdfium/core/fpdfapi/render/cpdf_type3cache.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/render/cpdf_type3cache.h"

#include <math.h>

#include <memory>
#include <utility>

#include "core/fpdfapi/font/cpdf_type3char.h"
#include "core/fpdfapi/font/cpdf_type3font.h"
#include "core/fpdfapi/render/cpdf_type3glyphmap.h"
#include "core/fxcrt/compiler_specific.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_safe_types.h"
#include "core/fxge/cfx_glyphbitmap.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/dib/fx_dib.h"

namespace {

bool IsScanLine1bpp(const uint8_t* pBuf, int width) { … }

bool IsScanLine8bpp(const uint8_t* pBuf, int width) { … }

bool IsScanLineBpp(int bpp, const uint8_t* pBuf, int width) { … }

int DetectFirstScan(const RetainPtr<CFX_DIBitmap>& pBitmap) { … }

int DetectLastScan(const RetainPtr<CFX_DIBitmap>& pBitmap) { … }

}  // namespace

CPDF_Type3Cache::CPDF_Type3Cache(CPDF_Type3Font* pFont) : … { … }

CPDF_Type3Cache::~CPDF_Type3Cache() = default;

const CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(uint32_t charcode,
                                                  const CFX_Matrix& mtMatrix) { … }

std::unique_ptr<CFX_GlyphBitmap> CPDF_Type3Cache::RenderGlyph(
    CPDF_Type3GlyphMap* pSize,
    uint32_t charcode,
    const CFX_Matrix& mtMatrix) { … }