blob: 97867ca851c2e7ada903de2ccfe58896e5e3e55f [file] [log] [blame]
// 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 "core/fxcodec/fx_codec_def.h"
#include "third_party/base/span.h"
class CJBig2_Context;
class CJBig2_Image;
class JBig2_DocumentContext;
class PauseIndicatorIface;
namespace fxcodec {
class Jbig2Context {
uint32_t m_width = 0;
uint32_t m_height = 0;
uint32_t m_nGlobalObjNum = 0;
uint32_t m_nSrcObjNum = 0;
pdfium::span<const uint8_t> m_pGlobalSpan;
pdfium::span<const uint8_t> m_pSrcSpan;
uint8_t* m_dest_buf = nullptr;
uint32_t m_dest_pitch = 0;
std::unique_ptr<CJBig2_Context> m_pContext;
class Jbig2Decoder {
static FXCODEC_STATUS StartDecode(
Jbig2Context* pJbig2Context,
std::unique_ptr<JBig2_DocumentContext>* pContextHolder,
uint32_t width,
uint32_t height,
pdfium::span<const uint8_t> src_span,
uint32_t src_objnum,
pdfium::span<const uint8_t> global_span,
uint32_t global_objnum,
uint8_t* dest_buf,
uint32_t dest_pitch,
PauseIndicatorIface* pPause);
static FXCODEC_STATUS ContinueDecode(Jbig2Context* pJbig2Context,
PauseIndicatorIface* pPause);
Jbig2Decoder() = delete;
Jbig2Decoder(const Jbig2Decoder&) = delete;
Jbig2Decoder& operator=(const Jbig2Decoder&) = delete;
} // namespace fxcodec
using Jbig2Context = fxcodec::Jbig2Context;
using Jbig2Decoder = fxcodec::Jbig2Decoder;