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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.
#include <stdint.h>
#include "third_party/base/span.h"
class PauseIndicatorIface;
namespace fxcodec {
class ScanlineDecoder {
ScanlineDecoder(int nOrigWidth,
int nOrigHeight,
int nOutputWidth,
int nOutputHeight,
int nComps,
int nBpc,
uint32_t nPitch);
virtual ~ScanlineDecoder();
pdfium::span<const uint8_t> GetScanline(int line);
bool SkipToScanline(int line, PauseIndicatorIface* pPause);
int GetWidth() const { return m_OutputWidth; }
int GetHeight() const { return m_OutputHeight; }
int CountComps() const { return m_nComps; }
int GetBPC() const { return m_bpc; }
virtual uint32_t GetSrcOffset() = 0;
virtual bool Rewind() = 0;
virtual pdfium::span<uint8_t> GetNextLine() = 0;
int m_OrigWidth;
int m_OrigHeight;
int m_OutputWidth;
int m_OutputHeight;
int m_nComps;
int m_bpc;
uint32_t m_Pitch;
int m_NextLine = -1;
pdfium::span<uint8_t> m_pLastScanline;
} // namespace fxcodec
using ScanlineDecoder = fxcodec::ScanlineDecoder;