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// Copyright 2016 PDFium Authors. All rights reserved.
// 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.
#include <memory>
#include "build/build_config.h"
#include "third_party/base/optional.h"
#include "third_party/base/span.h"
#if defined(OS_WIN)
#include "core/fxcrt/retain_ptr.h"
class CFX_DIBBase;
namespace fxcodec {
class ScanlineDecoder;
class JpegModule {
struct JpegImageInfo {
int width;
int height;
int num_components;
int bits_per_components;
bool color_transform;
static std::unique_ptr<ScanlineDecoder> CreateDecoder(
pdfium::span<const uint8_t> src_span,
int width,
int height,
int nComps,
bool ColorTransform);
static Optional<JpegImageInfo> LoadInfo(pdfium::span<const uint8_t> src_span);
#if defined(OS_WIN)
static bool JpegEncode(const RetainPtr<CFX_DIBBase>& pSource,
uint8_t** dest_buf,
size_t* dest_size);
#endif // defined(OS_WIN)
JpegModule() = delete;
JpegModule(const JpegModule&) = delete;
JpegModule& operator=(const JpegModule&) = delete;
} // namespace fxcodec
using JpegModule = fxcodec::JpegModule;