tiff_decoder.h

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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_TIFF_TIFF_DECODER_H_
#define CORE_FXCODEC_TIFF_TIFF_DECODER_H_
 
#include <memory>
 
#include "core/fxcodec/progressive_decoder_iface.h"
#include "core/fxcrt/retain_ptr.h"
 
#ifndef PDF_ENABLE_XFA_TIFF
#error "TIFF must be enabled"
#endif
 
class CFX_DIBitmap;
class IFX_SeekableReadStream;
 
namespace fxcodec {
 
class CFX_DIBAttribute;
 
class TiffDecoder {
 public:
  static std::unique_ptr<ProgressiveDecoderIface::Context> CreateDecoder(
      const RetainPtr<IFX_SeekableReadStream>& file_ptr);
 
  static bool LoadFrameInfo(ProgressiveDecoderIface::Context* ctx,
                            int32_t frame,
                            int32_t* width,
                            int32_t* height,
                            int32_t* comps,
                            int32_t* bpc,
                            CFX_DIBAttribute* pAttribute);
  // `bitmap` must be `FXDIB_Format::kBgra`.
  static bool Decode(ProgressiveDecoderIface::Context* ctx,
                     RetainPtr<CFX_DIBitmap> bitmap);
 
  TiffDecoder() = delete;
  TiffDecoder(const TiffDecoder&) = delete;
  TiffDecoder& operator=(const TiffDecoder&) = delete;
};
 
}  // namespace fxcodec
 
using TiffDecoder = fxcodec::TiffDecoder;
 
#endif  // CORE_FXCODEC_TIFF_TIFF_DECODER_H_