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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef LIB_JPEGLI_DECODE_SCAN_H_
#define LIB_JPEGLI_DECODE_SCAN_H_
/* clang-format off */
#include <stdint.h>
#include <stdio.h>
#include <jpeglib.h>
/* clang-format on */
namespace jpegli {
// Reads the available input in the source manager's input buffer until the end
// of the next iMCU row.
// The corresponding fields of cinfo are updated with the processed input data.
// Upon return, the input buffer will be at the start of an MCU, or at the end
// of the scan.
// Return value is one of:
// * JPEG_SUSPENDED, if the input buffer ends before the end of an iMCU row;
// * JPEG_ROW_COMPLETED, if the next iMCU row (but not the scan) is reached;
// * JPEG_SCAN_COMPLETED, if the end of the scan is reached.
int ProcessScan(j_decompress_ptr cinfo, const uint8_t* const data,
const size_t len, size_t* pos, size_t* bit_pos);
void PrepareForiMCURow(j_decompress_ptr cinfo);
} // namespace jpegli
#endif // LIB_JPEGLI_DECODE_SCAN_H_
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