| // 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. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FXCODEC_JBIG2_JBIG2_DECODER_H_ |
| #define CORE_FXCODEC_JBIG2_JBIG2_DECODER_H_ |
| |
| #include <memory> |
| |
| #include "core/fxcodec/fx_codec_def.h" |
| #include "third_party/base/span.h" |
| |
| class CJBig2_Context; |
| class JBig2_DocumentContext; |
| class PauseIndicatorIface; |
| |
| namespace fxcodec { |
| |
| class Jbig2Context { |
| public: |
| Jbig2Context(); |
| ~Jbig2Context(); |
| |
| uint32_t m_width = 0; |
| uint32_t m_height = 0; |
| uint64_t m_nGlobalKey = 0; |
| uint64_t m_nSrcKey = 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 { |
| public: |
| static FXCODEC_STATUS StartDecode( |
| Jbig2Context* pJbig2Context, |
| JBig2_DocumentContext* pJbig2DocumentContext, |
| uint32_t width, |
| uint32_t height, |
| pdfium::span<const uint8_t> src_span, |
| uint64_t src_key, |
| pdfium::span<const uint8_t> global_span, |
| uint64_t global_key, |
| 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; |
| |
| #endif // CORE_FXCODEC_JBIG2_JBIG2_DECODER_H_ |