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// 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
#ifndef CORE_FXCODEC_FAX_FAXMODULE_H_
#define CORE_FXCODEC_FAX_FAXMODULE_H_
#include <stdint.h>
#include <memory>
#include "build/build_config.h"
#include "third_party/base/containers/span.h"
#if BUILDFLAG(IS_WIN)
#include "core/fxcrt/data_vector.h"
#include "core/fxcrt/retain_ptr.h"
#endif
class CFX_DIBBase;
namespace fxcodec {
class ScanlineDecoder;
class FaxModule {
public:
static std::unique_ptr<ScanlineDecoder> CreateDecoder(
pdfium::span<const uint8_t> src_span,
int width,
int height,
int K,
bool EndOfLine,
bool EncodedByteAlign,
bool BlackIs1,
int Columns,
int Rows);
// Return the ending bit position.
static int FaxG4Decode(const uint8_t* src_buf,
uint32_t src_size,
int starting_bitpos,
int width,
int height,
int pitch,
uint8_t* dest_buf);
#if BUILDFLAG(IS_WIN)
// `src` must have a BPP value of 1.
static DataVector<uint8_t> FaxEncode(RetainPtr<CFX_DIBBase> src);
#endif // BUILDFLAG(IS_WIN)
FaxModule() = delete;
FaxModule(const FaxModule&) = delete;
FaxModule& operator=(const FaxModule&) = delete;
};
} // namespace fxcodec
using FaxModule = fxcodec::FaxModule;
#endif // CORE_FXCODEC_FAX_FAXMODULE_H_
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