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Diffstat (limited to 'third_party/jpeg-xl/lib/jpegli/decode.h')
| -rw-r--r-- | third_party/jpeg-xl/lib/jpegli/decode.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jpegli/decode.h b/third_party/jpeg-xl/lib/jpegli/decode.h new file mode 100644 index 0000000000..7b7a2034ad --- /dev/null +++ b/third_party/jpeg-xl/lib/jpegli/decode.h @@ -0,0 +1,111 @@ +// 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_ |