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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.
//
// This file conatins the C API of the decoder part of the libjpegli library,
// which is based on the C API of libjpeg, with the function names changed from
// jpeg_* to jpegli_*, while dempressor object definitions are included directly
// from jpeglib.h
//
// Applications can use the libjpegli library in one of the following ways:
//
// (1) Include jpegli/encode.h and/or jpegli/decode.h, update the function
// names of the API and link against libjpegli.
//
// (2) Leave the application code unchanged, but replace the libjpeg.so library
// with the one built by this project that is API- and ABI-compatible with
// libjpeg-turbo's version of libjpeg.so.
#ifndef LIB_JPEGLI_DECODE_H_
#define LIB_JPEGLI_DECODE_H_
/* clang-format off */
#include <stdio.h>
#include <jpeglib.h>
/* clang-format on */
#include "lib/jpegli/common.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#define jpegli_create_decompress(cinfo) \
jpegli_CreateDecompress((cinfo), JPEG_LIB_VERSION, \
(size_t)sizeof(struct jpeg_decompress_struct))
void jpegli_CreateDecompress(j_decompress_ptr cinfo, int version,
size_t structsize);
void jpegli_stdio_src(j_decompress_ptr cinfo, FILE *infile);
void jpegli_mem_src(j_decompress_ptr cinfo, const unsigned char *inbuffer,
unsigned long insize);
int jpegli_read_header(j_decompress_ptr cinfo, boolean require_image);
boolean jpegli_start_decompress(j_decompress_ptr cinfo);
JDIMENSION jpegli_read_scanlines(j_decompress_ptr cinfo, JSAMPARRAY scanlines,
JDIMENSION max_lines);
JDIMENSION jpegli_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines);
void jpegli_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
JDIMENSION *width);
boolean jpegli_finish_decompress(j_decompress_ptr cinfo);
JDIMENSION jpegli_read_raw_data(j_decompress_ptr cinfo, JSAMPIMAGE data,
JDIMENSION max_lines);
jvirt_barray_ptr *jpegli_read_coefficients(j_decompress_ptr cinfo);
boolean jpegli_has_multiple_scans(j_decompress_ptr cinfo);
boolean jpegli_start_output(j_decompress_ptr cinfo, int scan_number);
boolean jpegli_finish_output(j_decompress_ptr cinfo);
boolean jpegli_input_complete(j_decompress_ptr cinfo);
int jpegli_consume_input(j_decompress_ptr cinfo);
#if JPEG_LIB_VERSION >= 80
void jpegli_core_output_dimensions(j_decompress_ptr cinfo);
#endif
void jpegli_calc_output_dimensions(j_decompress_ptr cinfo);
void jpegli_save_markers(j_decompress_ptr cinfo, int marker_code,
unsigned int length_limit);
void jpegli_set_marker_processor(j_decompress_ptr cinfo, int marker_code,
jpeg_marker_parser_method routine);
boolean jpegli_resync_to_restart(j_decompress_ptr cinfo, int desired);
boolean jpegli_read_icc_profile(j_decompress_ptr cinfo, JOCTET **icc_data_ptr,
unsigned int *icc_data_len);
void jpegli_abort_decompress(j_decompress_ptr cinfo);
void jpegli_destroy_decompress(j_decompress_ptr cinfo);
void jpegli_new_colormap(j_decompress_ptr cinfo);
//
// New API functions that are not available in libjpeg
//
// NOTE: This part of the API is still experimental and will probably change in
// the future.
//
void jpegli_set_output_format(j_decompress_ptr cinfo, JpegliDataType data_type,
JpegliEndianness endianness);
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif
#endif // LIB_JPEGLI_DECODE_H_
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