Update bundled libjpeg to version 9f
This commit is contained in:
ManoloFLTK
parent
bf938da079
commit
3ecadc0a8e
@ -23,14 +23,14 @@ The nanosvg library is not affected.
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\section bundled-status Current status
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\code
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Current versions of bundled libraries (as of December 5, 2023):
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Current versions of bundled libraries (as of February 17, 2024):
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Library Version/git commit Release date FLTK Version
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--------------------------------------------------------------------------
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jpeg jpeg-9e 2022-01-16 1.4.0
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jpeg jpeg-9f 2024-01-14 1.4.0
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nanosvg 7aeda550a8 [1] 2023-12-02 1.4.0
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png libpng-1.6.42 2024-01-29 1.4.0
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zlib zlib-1.3.1 2024-01-22 1.4.0
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libdecor 060fe761 [2] 2023-12-01 1.4.0
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libdecor 7807ae34 [2] 2024-01-15 1.4.0
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--------------------------------------------------------------------------
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Previous versions of bundled libraries (FLTK 1.3.x):
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10
jpeg/README
10
jpeg/README
@ -1,7 +1,7 @@
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The Independent JPEG Group's JPEG software
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==========================================
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README for release 9e of 16-Jan-2022
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README for release 9f of 14-Jan-2024
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====================================
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This distribution contains the ninth public release of the Independent JPEG
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@ -116,7 +116,7 @@ with respect to this software, its quality, accuracy, merchantability, or
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fitness for a particular purpose. This software is provided "AS IS", and you,
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its user, assume the entire risk as to its quality and accuracy.
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This software is copyright (C) 1991-2022, Thomas G. Lane, Guido Vollbeding.
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This software is copyright (C) 1991-2024, Thomas G. Lane, Guido Vollbeding.
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All Rights Reserved except as specified below.
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Permission is hereby granted to use, copy, modify, and distribute this
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@ -240,9 +240,9 @@ The "official" archive site for this software is www.ijg.org.
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The most recent released version can always be found there in
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directory "files". This particular version will be archived
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in Windows-compatible "zip" archive format as
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https://www.ijg.org/files/jpegsr9e.zip, and
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https://www.ijg.org/files/jpegsr9f.zip, and
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in Unix-compatible "tar.gz" archive format as
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https://www.ijg.org/files/jpegsrc.v9e.tar.gz.
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https://www.ijg.org/files/jpegsrc.v9f.tar.gz.
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The JPEG FAQ (Frequently Asked Questions) article is a source of some
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general information about JPEG.
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@ -371,4 +371,4 @@ to overcome the limitations of the original JPEG specification,
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and is the first true source reference JPEG codec.
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More features are being prepared for coming releases...
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Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.
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Please send bug reports, offers of help, etc. to jpeg-info@ijg.org.
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@ -1,6 +1,17 @@
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CHANGE LOG for Independent JPEG Group's JPEG software
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Version 9f 14-Jan-2024
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-----------------------
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Add build system for C++Builder/RAD Studio.
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Add build system for Xcode (beside configure).
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Add ARM64EC (Emulation Compatible) platform support in the
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Visual Studio build.
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Version 9e 16-Jan-2022
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-----------------------
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@ -1,173 +1,169 @@
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/*
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* FLTK symbol prefixes for libjpeg
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* This is a generated file: see README.bundled-libs.txt
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*/
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#define jcopy_block_row fltk_jcopy_block_row
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#define jcopy_sample_rows fltk_jcopy_sample_rows
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#define jdiv_round_up fltk_jdiv_round_up
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#define jinit_1pass_quantizer fltk_jinit_1pass_quantizer
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#define jinit_2pass_quantizer fltk_jinit_2pass_quantizer
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#define jinit_arith_decoder fltk_jinit_arith_decoder
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#define jinit_arith_encoder fltk_jinit_arith_encoder
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#define jinit_c_coef_controller fltk_jinit_c_coef_controller
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#define jinit_c_main_controller fltk_jinit_c_main_controller
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#define jinit_c_master_control fltk_jinit_c_master_control
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#define jinit_color_converter fltk_jinit_color_converter
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#define jinit_color_deconverter fltk_jinit_color_deconverter
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#define jinit_compress_master fltk_jinit_compress_master
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#define jinit_c_prep_controller fltk_jinit_c_prep_controller
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#define jinit_d_coef_controller fltk_jinit_d_coef_controller
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#define jinit_d_main_controller fltk_jinit_d_main_controller
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#define jinit_downsampler fltk_jinit_downsampler
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#define jinit_d_post_controller fltk_jinit_d_post_controller
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#define jinit_forward_dct fltk_jinit_forward_dct
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#define jinit_huff_decoder fltk_jinit_huff_decoder
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#define jinit_huff_encoder fltk_jinit_huff_encoder
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#define jinit_input_controller fltk_jinit_input_controller
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#define jinit_inverse_dct fltk_jinit_inverse_dct
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#define jinit_marker_reader fltk_jinit_marker_reader
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#define jinit_marker_writer fltk_jinit_marker_writer
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#define jinit_master_decompress fltk_jinit_master_decompress
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#define jinit_memory_mgr fltk_jinit_memory_mgr
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#define jinit_merged_upsampler fltk_jinit_merged_upsampler
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#define jinit_upsampler fltk_jinit_upsampler
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#define jpeg_abort fltk_jpeg_abort
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#define jpeg_abort_compress fltk_jpeg_abort_compress
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#define jpeg_abort_decompress fltk_jpeg_abort_decompress
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#define jpeg_add_quant_table fltk_jpeg_add_quant_table
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#define jpeg_alloc_huff_table fltk_jpeg_alloc_huff_table
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#define jpeg_alloc_quant_table fltk_jpeg_alloc_quant_table
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#define jpeg_aritab fltk_jpeg_aritab
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#define jpeg_calc_jpeg_dimensions fltk_jpeg_calc_jpeg_dimensions
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#define jpeg_calc_output_dimensions fltk_jpeg_calc_output_dimensions
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#define jpeg_consume_input fltk_jpeg_consume_input
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#define jpeg_copy_critical_parameters fltk_jpeg_copy_critical_parameters
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#define jpeg_core_output_dimensions fltk_jpeg_core_output_dimensions
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#define jpeg_CreateCompress fltk_jpeg_CreateCompress
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#define jpeg_CreateDecompress fltk_jpeg_CreateDecompress
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#define jpeg_default_colorspace fltk_jpeg_default_colorspace
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#define jpeg_default_qtables fltk_jpeg_default_qtables
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#define jpeg_destroy fltk_jpeg_destroy
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#define jpeg_destroy_compress fltk_jpeg_destroy_compress
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#define jpeg_destroy_decompress fltk_jpeg_destroy_decompress
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#define jpeg_fdct_10x10 fltk_jpeg_fdct_10x10
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#define jpeg_fdct_10x5 fltk_jpeg_fdct_10x5
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#define jpeg_fdct_11x11 fltk_jpeg_fdct_11x11
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#define jpeg_fdct_12x12 fltk_jpeg_fdct_12x12
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#define jpeg_fdct_12x6 fltk_jpeg_fdct_12x6
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#define jpeg_fdct_13x13 fltk_jpeg_fdct_13x13
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#define jpeg_fdct_14x14 fltk_jpeg_fdct_14x14
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#define jpeg_fdct_14x7 fltk_jpeg_fdct_14x7
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#define jpeg_fdct_15x15 fltk_jpeg_fdct_15x15
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#define jpeg_fdct_16x16 fltk_jpeg_fdct_16x16
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#define jpeg_fdct_16x8 fltk_jpeg_fdct_16x8
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#define jpeg_fdct_1x1 fltk_jpeg_fdct_1x1
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#define jpeg_fdct_1x2 fltk_jpeg_fdct_1x2
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#define jpeg_fdct_2x1 fltk_jpeg_fdct_2x1
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#define jpeg_fdct_2x2 fltk_jpeg_fdct_2x2
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#define jpeg_fdct_2x4 fltk_jpeg_fdct_2x4
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#define jpeg_fdct_3x3 fltk_jpeg_fdct_3x3
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#define jpeg_fdct_3x6 fltk_jpeg_fdct_3x6
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#define jpeg_fdct_4x2 fltk_jpeg_fdct_4x2
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#define jpeg_fdct_4x4 fltk_jpeg_fdct_4x4
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#define jpeg_fdct_4x8 fltk_jpeg_fdct_4x8
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#define jpeg_fdct_5x10 fltk_jpeg_fdct_5x10
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#define jpeg_fdct_5x5 fltk_jpeg_fdct_5x5
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#define jpeg_fdct_6x12 fltk_jpeg_fdct_6x12
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#define jpeg_fdct_6x3 fltk_jpeg_fdct_6x3
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#define jpeg_fdct_6x6 fltk_jpeg_fdct_6x6
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#define jpeg_fdct_7x14 fltk_jpeg_fdct_7x14
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#define jpeg_fdct_7x7 fltk_jpeg_fdct_7x7
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#define jpeg_fdct_8x16 fltk_jpeg_fdct_8x16
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#define jpeg_fdct_8x4 fltk_jpeg_fdct_8x4
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#define jpeg_fdct_9x9 fltk_jpeg_fdct_9x9
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#define jpeg_fdct_float fltk_jpeg_fdct_float
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#define jpeg_fdct_ifast fltk_jpeg_fdct_ifast
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#define jpeg_fdct_islow fltk_jpeg_fdct_islow
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#define jpeg_finish_compress fltk_jpeg_finish_compress
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#define jpeg_finish_decompress fltk_jpeg_finish_decompress
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#define jpeg_finish_output fltk_jpeg_finish_output
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#define jpeg_free_large fltk_jpeg_free_large
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#define jpeg_free_small fltk_jpeg_free_small
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#define jpeg_get_large fltk_jpeg_get_large
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#define jpeg_get_small fltk_jpeg_get_small
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#define jpeg_has_multiple_scans fltk_jpeg_has_multiple_scans
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#define jpeg_idct_10x10 fltk_jpeg_idct_10x10
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#define jpeg_idct_10x5 fltk_jpeg_idct_10x5
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#define jpeg_idct_11x11 fltk_jpeg_idct_11x11
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#define jpeg_idct_12x12 fltk_jpeg_idct_12x12
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#define jpeg_idct_12x6 fltk_jpeg_idct_12x6
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#define jpeg_idct_13x13 fltk_jpeg_idct_13x13
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#define jpeg_idct_14x14 fltk_jpeg_idct_14x14
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#define jpeg_idct_14x7 fltk_jpeg_idct_14x7
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#define jpeg_idct_15x15 fltk_jpeg_idct_15x15
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#define jpeg_idct_16x16 fltk_jpeg_idct_16x16
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#define jpeg_idct_16x8 fltk_jpeg_idct_16x8
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#define jpeg_idct_1x1 fltk_jpeg_idct_1x1
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#define jpeg_idct_1x2 fltk_jpeg_idct_1x2
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#define jpeg_idct_2x1 fltk_jpeg_idct_2x1
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#define jpeg_idct_2x2 fltk_jpeg_idct_2x2
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#define jpeg_idct_2x4 fltk_jpeg_idct_2x4
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#define jpeg_idct_3x3 fltk_jpeg_idct_3x3
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#define jpeg_idct_3x6 fltk_jpeg_idct_3x6
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#define jpeg_idct_4x2 fltk_jpeg_idct_4x2
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#define jpeg_idct_4x4 fltk_jpeg_idct_4x4
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#define jpeg_idct_4x8 fltk_jpeg_idct_4x8
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#define jpeg_idct_5x10 fltk_jpeg_idct_5x10
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#define jpeg_idct_5x5 fltk_jpeg_idct_5x5
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#define jpeg_idct_6x12 fltk_jpeg_idct_6x12
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#define jpeg_idct_6x3 fltk_jpeg_idct_6x3
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#define jpeg_idct_6x6 fltk_jpeg_idct_6x6
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#define jpeg_idct_7x14 fltk_jpeg_idct_7x14
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#define jpeg_idct_7x7 fltk_jpeg_idct_7x7
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#define jpeg_idct_8x16 fltk_jpeg_idct_8x16
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#define jpeg_idct_8x4 fltk_jpeg_idct_8x4
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#define jpeg_idct_9x9 fltk_jpeg_idct_9x9
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#define jpeg_idct_float fltk_jpeg_idct_float
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#define jpeg_idct_ifast fltk_jpeg_idct_ifast
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#define jpeg_idct_islow fltk_jpeg_idct_islow
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#define jpeg_input_complete fltk_jpeg_input_complete
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#define jpeg_mem_available fltk_jpeg_mem_available
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#define jpeg_mem_dest fltk_jpeg_mem_dest
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#define jpeg_mem_init fltk_jpeg_mem_init
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#define jpeg_mem_src fltk_jpeg_mem_src
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#define jpeg_mem_term fltk_jpeg_mem_term
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#define jpeg_natural_order fltk_jpeg_natural_order
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#define jpeg_natural_order2 fltk_jpeg_natural_order2
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#define jpeg_natural_order3 fltk_jpeg_natural_order3
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#define jpeg_natural_order4 fltk_jpeg_natural_order4
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#define jpeg_natural_order5 fltk_jpeg_natural_order5
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#define jpeg_natural_order6 fltk_jpeg_natural_order6
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#define jpeg_natural_order7 fltk_jpeg_natural_order7
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#define jpeg_new_colormap fltk_jpeg_new_colormap
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#define jpeg_open_backing_store fltk_jpeg_open_backing_store
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#define jpeg_quality_scaling fltk_jpeg_quality_scaling
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#define jpeg_read_coefficients fltk_jpeg_read_coefficients
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#define jpeg_read_header fltk_jpeg_read_header
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#define jpeg_read_raw_data fltk_jpeg_read_raw_data
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#define jpeg_read_scanlines fltk_jpeg_read_scanlines
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#define jpeg_resync_to_restart fltk_jpeg_resync_to_restart
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#define jpeg_save_markers fltk_jpeg_save_markers
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#define jpeg_set_colorspace fltk_jpeg_set_colorspace
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#define jpeg_set_defaults fltk_jpeg_set_defaults
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#define jpeg_set_linear_quality fltk_jpeg_set_linear_quality
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#define jpeg_set_marker_processor fltk_jpeg_set_marker_processor
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#define jpeg_set_quality fltk_jpeg_set_quality
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#define jpeg_simple_progression fltk_jpeg_simple_progression
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#define jpeg_start_compress fltk_jpeg_start_compress
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#define jpeg_start_decompress fltk_jpeg_start_decompress
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#define jpeg_start_output fltk_jpeg_start_output
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#define jpeg_std_error fltk_jpeg_std_error
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#define jpeg_std_huff_table fltk_jpeg_std_huff_table
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#define jpeg_stdio_dest fltk_jpeg_stdio_dest
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#define jpeg_stdio_src fltk_jpeg_stdio_src
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#define jpeg_std_message_table fltk_jpeg_std_message_table
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#define jpeg_suppress_tables fltk_jpeg_suppress_tables
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#define jpeg_write_coefficients fltk_jpeg_write_coefficients
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#define jpeg_write_marker fltk_jpeg_write_marker
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#define jpeg_write_m_byte fltk_jpeg_write_m_byte
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#define jpeg_write_m_header fltk_jpeg_write_m_header
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#define jpeg_write_raw_data fltk_jpeg_write_raw_data
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#define jpeg_write_scanlines fltk_jpeg_write_scanlines
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#define jpeg_write_tables fltk_jpeg_write_tables
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#define jround_up fltk_jround_up
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#define _jcopy_block_row fltk__jcopy_block_row
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#define _jcopy_sample_rows fltk__jcopy_sample_rows
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#define _jdiv_round_up fltk__jdiv_round_up
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#define _jinit_1pass_quantizer fltk__jinit_1pass_quantizer
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#define _jinit_2pass_quantizer fltk__jinit_2pass_quantizer
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#define _jinit_arith_decoder fltk__jinit_arith_decoder
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#define _jinit_arith_encoder fltk__jinit_arith_encoder
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#define _jinit_c_coef_controller fltk__jinit_c_coef_controller
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#define _jinit_c_main_controller fltk__jinit_c_main_controller
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#define _jinit_c_master_control fltk__jinit_c_master_control
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#define _jinit_c_prep_controller fltk__jinit_c_prep_controller
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#define _jinit_color_converter fltk__jinit_color_converter
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#define _jinit_color_deconverter fltk__jinit_color_deconverter
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#define _jinit_compress_master fltk__jinit_compress_master
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#define _jinit_d_coef_controller fltk__jinit_d_coef_controller
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#define _jinit_d_main_controller fltk__jinit_d_main_controller
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#define _jinit_d_post_controller fltk__jinit_d_post_controller
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#define _jinit_downsampler fltk__jinit_downsampler
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#define _jinit_forward_dct fltk__jinit_forward_dct
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#define _jinit_huff_decoder fltk__jinit_huff_decoder
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#define _jinit_huff_encoder fltk__jinit_huff_encoder
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#define _jinit_input_controller fltk__jinit_input_controller
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#define _jinit_inverse_dct fltk__jinit_inverse_dct
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#define _jinit_marker_reader fltk__jinit_marker_reader
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#define _jinit_marker_writer fltk__jinit_marker_writer
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#define _jinit_master_decompress fltk__jinit_master_decompress
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#define _jinit_memory_mgr fltk__jinit_memory_mgr
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#define _jinit_merged_upsampler fltk__jinit_merged_upsampler
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#define _jinit_upsampler fltk__jinit_upsampler
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#define _jpeg_CreateCompress fltk__jpeg_CreateCompress
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#define _jpeg_CreateDecompress fltk__jpeg_CreateDecompress
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#define _jpeg_abort fltk__jpeg_abort
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#define _jpeg_abort_compress fltk__jpeg_abort_compress
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#define _jpeg_abort_decompress fltk__jpeg_abort_decompress
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#define _jpeg_add_quant_table fltk__jpeg_add_quant_table
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#define _jpeg_alloc_huff_table fltk__jpeg_alloc_huff_table
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#define _jpeg_alloc_quant_table fltk__jpeg_alloc_quant_table
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#define _jpeg_aritab fltk__jpeg_aritab
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#define _jpeg_calc_jpeg_dimensions fltk__jpeg_calc_jpeg_dimensions
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#define _jpeg_calc_output_dimensions fltk__jpeg_calc_output_dimensions
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#define _jpeg_consume_input fltk__jpeg_consume_input
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#define _jpeg_copy_critical_parameters fltk__jpeg_copy_critical_parameters
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#define _jpeg_core_output_dimensions fltk__jpeg_core_output_dimensions
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#define _jpeg_default_colorspace fltk__jpeg_default_colorspace
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#define _jpeg_default_qtables fltk__jpeg_default_qtables
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#define _jpeg_destroy fltk__jpeg_destroy
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#define _jpeg_destroy_compress fltk__jpeg_destroy_compress
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#define _jpeg_destroy_decompress fltk__jpeg_destroy_decompress
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#define _jpeg_fdct_10x10 fltk__jpeg_fdct_10x10
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#define _jpeg_fdct_10x5 fltk__jpeg_fdct_10x5
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#define _jpeg_fdct_11x11 fltk__jpeg_fdct_11x11
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#define _jpeg_fdct_12x12 fltk__jpeg_fdct_12x12
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#define _jpeg_fdct_12x6 fltk__jpeg_fdct_12x6
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#define _jpeg_fdct_13x13 fltk__jpeg_fdct_13x13
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#define _jpeg_fdct_14x14 fltk__jpeg_fdct_14x14
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#define _jpeg_fdct_14x7 fltk__jpeg_fdct_14x7
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#define _jpeg_fdct_15x15 fltk__jpeg_fdct_15x15
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#define _jpeg_fdct_16x16 fltk__jpeg_fdct_16x16
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#define _jpeg_fdct_16x8 fltk__jpeg_fdct_16x8
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#define _jpeg_fdct_1x1 fltk__jpeg_fdct_1x1
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#define _jpeg_fdct_1x2 fltk__jpeg_fdct_1x2
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#define _jpeg_fdct_2x1 fltk__jpeg_fdct_2x1
|
||||
#define _jpeg_fdct_2x2 fltk__jpeg_fdct_2x2
|
||||
#define _jpeg_fdct_2x4 fltk__jpeg_fdct_2x4
|
||||
#define _jpeg_fdct_3x3 fltk__jpeg_fdct_3x3
|
||||
#define _jpeg_fdct_3x6 fltk__jpeg_fdct_3x6
|
||||
#define _jpeg_fdct_4x2 fltk__jpeg_fdct_4x2
|
||||
#define _jpeg_fdct_4x4 fltk__jpeg_fdct_4x4
|
||||
#define _jpeg_fdct_4x8 fltk__jpeg_fdct_4x8
|
||||
#define _jpeg_fdct_5x10 fltk__jpeg_fdct_5x10
|
||||
#define _jpeg_fdct_5x5 fltk__jpeg_fdct_5x5
|
||||
#define _jpeg_fdct_6x12 fltk__jpeg_fdct_6x12
|
||||
#define _jpeg_fdct_6x3 fltk__jpeg_fdct_6x3
|
||||
#define _jpeg_fdct_6x6 fltk__jpeg_fdct_6x6
|
||||
#define _jpeg_fdct_7x14 fltk__jpeg_fdct_7x14
|
||||
#define _jpeg_fdct_7x7 fltk__jpeg_fdct_7x7
|
||||
#define _jpeg_fdct_8x16 fltk__jpeg_fdct_8x16
|
||||
#define _jpeg_fdct_8x4 fltk__jpeg_fdct_8x4
|
||||
#define _jpeg_fdct_9x9 fltk__jpeg_fdct_9x9
|
||||
#define _jpeg_fdct_float fltk__jpeg_fdct_float
|
||||
#define _jpeg_fdct_ifast fltk__jpeg_fdct_ifast
|
||||
#define _jpeg_fdct_islow fltk__jpeg_fdct_islow
|
||||
#define _jpeg_finish_compress fltk__jpeg_finish_compress
|
||||
#define _jpeg_finish_decompress fltk__jpeg_finish_decompress
|
||||
#define _jpeg_finish_output fltk__jpeg_finish_output
|
||||
#define _jpeg_free_large fltk__jpeg_free_large
|
||||
#define _jpeg_free_small fltk__jpeg_free_small
|
||||
#define _jpeg_get_large fltk__jpeg_get_large
|
||||
#define _jpeg_get_small fltk__jpeg_get_small
|
||||
#define _jpeg_has_multiple_scans fltk__jpeg_has_multiple_scans
|
||||
#define _jpeg_idct_10x10 fltk__jpeg_idct_10x10
|
||||
#define _jpeg_idct_10x5 fltk__jpeg_idct_10x5
|
||||
#define _jpeg_idct_11x11 fltk__jpeg_idct_11x11
|
||||
#define _jpeg_idct_12x12 fltk__jpeg_idct_12x12
|
||||
#define _jpeg_idct_12x6 fltk__jpeg_idct_12x6
|
||||
#define _jpeg_idct_13x13 fltk__jpeg_idct_13x13
|
||||
#define _jpeg_idct_14x14 fltk__jpeg_idct_14x14
|
||||
#define _jpeg_idct_14x7 fltk__jpeg_idct_14x7
|
||||
#define _jpeg_idct_15x15 fltk__jpeg_idct_15x15
|
||||
#define _jpeg_idct_16x16 fltk__jpeg_idct_16x16
|
||||
#define _jpeg_idct_16x8 fltk__jpeg_idct_16x8
|
||||
#define _jpeg_idct_1x1 fltk__jpeg_idct_1x1
|
||||
#define _jpeg_idct_1x2 fltk__jpeg_idct_1x2
|
||||
#define _jpeg_idct_2x1 fltk__jpeg_idct_2x1
|
||||
#define _jpeg_idct_2x2 fltk__jpeg_idct_2x2
|
||||
#define _jpeg_idct_2x4 fltk__jpeg_idct_2x4
|
||||
#define _jpeg_idct_3x3 fltk__jpeg_idct_3x3
|
||||
#define _jpeg_idct_3x6 fltk__jpeg_idct_3x6
|
||||
#define _jpeg_idct_4x2 fltk__jpeg_idct_4x2
|
||||
#define _jpeg_idct_4x4 fltk__jpeg_idct_4x4
|
||||
#define _jpeg_idct_4x8 fltk__jpeg_idct_4x8
|
||||
#define _jpeg_idct_5x10 fltk__jpeg_idct_5x10
|
||||
#define _jpeg_idct_5x5 fltk__jpeg_idct_5x5
|
||||
#define _jpeg_idct_6x12 fltk__jpeg_idct_6x12
|
||||
#define _jpeg_idct_6x3 fltk__jpeg_idct_6x3
|
||||
#define _jpeg_idct_6x6 fltk__jpeg_idct_6x6
|
||||
#define _jpeg_idct_7x14 fltk__jpeg_idct_7x14
|
||||
#define _jpeg_idct_7x7 fltk__jpeg_idct_7x7
|
||||
#define _jpeg_idct_8x16 fltk__jpeg_idct_8x16
|
||||
#define _jpeg_idct_8x4 fltk__jpeg_idct_8x4
|
||||
#define _jpeg_idct_9x9 fltk__jpeg_idct_9x9
|
||||
#define _jpeg_idct_float fltk__jpeg_idct_float
|
||||
#define _jpeg_idct_ifast fltk__jpeg_idct_ifast
|
||||
#define _jpeg_idct_islow fltk__jpeg_idct_islow
|
||||
#define _jpeg_input_complete fltk__jpeg_input_complete
|
||||
#define _jpeg_mem_available fltk__jpeg_mem_available
|
||||
#define _jpeg_mem_dest fltk__jpeg_mem_dest
|
||||
#define _jpeg_mem_init fltk__jpeg_mem_init
|
||||
#define _jpeg_mem_src fltk__jpeg_mem_src
|
||||
#define _jpeg_mem_term fltk__jpeg_mem_term
|
||||
#define _jpeg_natural_order fltk__jpeg_natural_order
|
||||
#define _jpeg_natural_order2 fltk__jpeg_natural_order2
|
||||
#define _jpeg_natural_order3 fltk__jpeg_natural_order3
|
||||
#define _jpeg_natural_order4 fltk__jpeg_natural_order4
|
||||
#define _jpeg_natural_order5 fltk__jpeg_natural_order5
|
||||
#define _jpeg_natural_order6 fltk__jpeg_natural_order6
|
||||
#define _jpeg_natural_order7 fltk__jpeg_natural_order7
|
||||
#define _jpeg_new_colormap fltk__jpeg_new_colormap
|
||||
#define _jpeg_open_backing_store fltk__jpeg_open_backing_store
|
||||
#define _jpeg_quality_scaling fltk__jpeg_quality_scaling
|
||||
#define _jpeg_read_coefficients fltk__jpeg_read_coefficients
|
||||
#define _jpeg_read_header fltk__jpeg_read_header
|
||||
#define _jpeg_read_raw_data fltk__jpeg_read_raw_data
|
||||
#define _jpeg_read_scanlines fltk__jpeg_read_scanlines
|
||||
#define _jpeg_resync_to_restart fltk__jpeg_resync_to_restart
|
||||
#define _jpeg_save_markers fltk__jpeg_save_markers
|
||||
#define _jpeg_set_colorspace fltk__jpeg_set_colorspace
|
||||
#define _jpeg_set_defaults fltk__jpeg_set_defaults
|
||||
#define _jpeg_set_linear_quality fltk__jpeg_set_linear_quality
|
||||
#define _jpeg_set_marker_processor fltk__jpeg_set_marker_processor
|
||||
#define _jpeg_set_quality fltk__jpeg_set_quality
|
||||
#define _jpeg_simple_progression fltk__jpeg_simple_progression
|
||||
#define _jpeg_start_compress fltk__jpeg_start_compress
|
||||
#define _jpeg_start_decompress fltk__jpeg_start_decompress
|
||||
#define _jpeg_start_output fltk__jpeg_start_output
|
||||
#define _jpeg_std_error fltk__jpeg_std_error
|
||||
#define _jpeg_std_huff_table fltk__jpeg_std_huff_table
|
||||
#define _jpeg_std_message_table fltk__jpeg_std_message_table
|
||||
#define _jpeg_stdio_dest fltk__jpeg_stdio_dest
|
||||
#define _jpeg_stdio_src fltk__jpeg_stdio_src
|
||||
#define _jpeg_suppress_tables fltk__jpeg_suppress_tables
|
||||
#define _jpeg_write_coefficients fltk__jpeg_write_coefficients
|
||||
#define _jpeg_write_m_byte fltk__jpeg_write_m_byte
|
||||
#define _jpeg_write_m_header fltk__jpeg_write_m_header
|
||||
#define _jpeg_write_marker fltk__jpeg_write_marker
|
||||
#define _jpeg_write_raw_data fltk__jpeg_write_raw_data
|
||||
#define _jpeg_write_scanlines fltk__jpeg_write_scanlines
|
||||
#define _jpeg_write_tables fltk__jpeg_write_tables
|
||||
#define _jround_up fltk__jround_up
|
||||
|
||||
148
jpeg/install.txt
148
jpeg/install.txt
@ -1,6 +1,6 @@
|
||||
INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software
|
||||
|
||||
Copyright (C) 1991-2021, Thomas G. Lane, Guido Vollbeding.
|
||||
Copyright (C) 1991-2023, Thomas G. Lane, Guido Vollbeding.
|
||||
This file is part of the Independent JPEG Group's software.
|
||||
For conditions of distribution and use, see the accompanying README file.
|
||||
|
||||
@ -142,7 +142,8 @@ Makefile jconfig file System and/or compiler
|
||||
makefile.manx jconfig.manx Amiga, Manx Aztec C
|
||||
makefile.sas jconfig.sas Amiga, SAS C
|
||||
makeproj.mac jconfig.mac Apple Macintosh, Metrowerks CodeWarrior
|
||||
mak*jpeg.st jconfig.st Atari ST/STE/TT, Pure C or Turbo C
|
||||
makefile.xc jconfig.xc Apple Mac, Xcode 15
|
||||
mak*jpeg.st jconfig.st Atari ST/Mega/STE/TT/Falcon, Pure C or Turbo C
|
||||
makefile.bcc jconfig.bcc MS-DOS or OS/2, Borland C
|
||||
makefile.dj jconfig.dj MS-DOS, DJGPP (Delorie's port of GNU C)
|
||||
makefile.mc6 jconfig.mc6 MS-DOS, Microsoft C (16-bit only)
|
||||
@ -150,12 +151,15 @@ makefile.wat jconfig.wat MS-DOS, OS/2, or Windows NT, Watcom C
|
||||
makefile.vc jconfig.vc Windows, MS Visual C++
|
||||
makefile.vs jconfig.vc Windows, MS Visual C++ 6 Developer Studio
|
||||
make*.vc6
|
||||
makefile.vs jconfig.vc Windows, Visual Studio 2019 Version 16
|
||||
makefile.vs jconfig.vc Windows, Visual Studio 2019-2022 version 16-17
|
||||
make*.v16
|
||||
makefile.vs jconfig.vc Windows, Visual Studio 2022 Version 17
|
||||
make*.v16
|
||||
make*.v17
|
||||
makefile.b32 jconfig.vc Windows, Borland C++ 32-bit (bcc32)
|
||||
makefile.b32 jconfig.vc Windows, C++Builder/RAD Studio 10.4-11
|
||||
mak*jpeg.bcb
|
||||
makefile.b32 jconfig.vc Windows, Embarcadero C++ for Win32 (bcc32)
|
||||
makefile.c32 jconfig.vc Windows, Embarcadero C++ for Win32 (bcc32c)
|
||||
makefile.d32
|
||||
makefile.x32 jconfig.vc Windows, Embarcadero C++ for Win32 (bcc32x)
|
||||
makefile.b64 jconfig.vc Windows, Embarcadero C++ for Win64 (bcc64)
|
||||
makefile.mms jconfig.vms Digital VMS, with MMS software
|
||||
makefile.vms jconfig.vms Digital VMS, without MMS software
|
||||
|
||||
@ -545,8 +549,8 @@ In general, it's worth trying the maximum optimization level of your compiler,
|
||||
and experimenting with any optional optimizations such as loop unrolling.
|
||||
(Unfortunately, far too many compilers have optimizer bugs ... be prepared to
|
||||
back off if the code fails self-test.) If you do any experimentation along
|
||||
these lines, please report the optimal settings to jpeg-info@jpegclub.org so
|
||||
we can mention them in future releases. Be sure to specify your machine and
|
||||
these lines, please report the optimal settings to jpeg-info@ijg.org so we
|
||||
can mention them in future releases. Be sure to specify your machine and
|
||||
compiler version.
|
||||
|
||||
|
||||
@ -554,8 +558,8 @@ HINTS FOR SPECIFIC SYSTEMS
|
||||
==========================
|
||||
|
||||
We welcome reports on changes needed for systems not mentioned here. Submit
|
||||
'em to jpeg-info@jpegclub.org. Also, if configure or ckconfig.c is wrong
|
||||
about how to configure the JPEG software for your system, please let us know.
|
||||
'em to jpeg-info@ijg.org. Also, if configure or ckconfig.c is wrong about
|
||||
how to configure the JPEG software for your system, please let us know.
|
||||
|
||||
|
||||
Acorn RISC OS:
|
||||
@ -593,7 +597,7 @@ manager, with temporary files being created on the device named by
|
||||
"JPEGTMP:".
|
||||
|
||||
|
||||
Atari ST/STE/TT:
|
||||
Atari ST/Mega/STE/TT/Falcon:
|
||||
|
||||
Copy the project files makcjpeg.st, makdjpeg.st, maktjpeg.st, and makljpeg.st
|
||||
to cjpeg.prj, djpeg.prj, jpegtran.prj, and libjpeg.prj respectively. The
|
||||
@ -1045,8 +1049,8 @@ To use:
|
||||
(Note that the renaming is critical!)
|
||||
Alternatively you can use
|
||||
nmake /f makefile.vs setupcopy-vc6
|
||||
This will create renamed copies of the files, which allows to repeat
|
||||
the setup later.
|
||||
This will create renamed copies of the files,
|
||||
which allows to repeat the setup later.
|
||||
2. Open the workspace file jpeg.dsw, build the library project.
|
||||
(If you are using Developer Studio more recent than 6.0, you'll
|
||||
probably get a message saying that the project files are being updated.)
|
||||
@ -1057,108 +1061,100 @@ To use:
|
||||
appropriate location on your path.
|
||||
|
||||
|
||||
Microsoft Windows, Visual Studio 2019 Version 16:
|
||||
Microsoft Windows, Microsoft Visual Studio 2019-2022 version 16-17:
|
||||
|
||||
We include makefiles that should work as project files in Visual Studio
|
||||
2019 Version 16 or later. There is a library makefile that builds the
|
||||
IJG library as a static Win32/x64/ARM/ARM64 library, and application
|
||||
makefiles that build the sample applications as Win32/x64/ARM/ARM64
|
||||
console applications. (Even if you only want the library, we recommend
|
||||
building the applications so that you can run the self-test.)
|
||||
2019-2022 version 16-17 or later. There is a library makefile that
|
||||
builds the IJG library as a static Win32/x64/ARM/ARM64/ARM64EC library,
|
||||
and application makefiles that build the sample applications as
|
||||
Win32/x64/ARM/ARM64/ARM64EC console applications. (Even if you
|
||||
only want the library, we recommend building the applications
|
||||
so that you can run the self-test.)
|
||||
|
||||
To use:
|
||||
1. Ensure you’ve checked the item "Desktop development with C++" in the
|
||||
Workloads tab of Visual Studio Installer.
|
||||
Open the Developer Command Prompt for VS 2019, change to the source
|
||||
directory and execute the command line
|
||||
Open the Developer Command Prompt for VS 2019-2022, change to the
|
||||
source directory and execute the command line
|
||||
nmake /f makefile.vs setup-v16
|
||||
This will move jconfig.vc to jconfig.h and makefiles to project files.
|
||||
(Note that the renaming is critical!)
|
||||
Alternatively you can use
|
||||
nmake /f makefile.vs setupcopy-v16
|
||||
This will create renamed copies of the files, which allows to repeat
|
||||
the setup later.
|
||||
This will create renamed copies of the files,
|
||||
which allows to repeat the setup later.
|
||||
2. Open the solution file jpeg.sln, build the library project.
|
||||
a) If you are using Visual Studio more recent than
|
||||
2019 Version 16, you'll probably get a message
|
||||
2022 version 17, you'll possibly get a message
|
||||
saying that the project files are being updated.
|
||||
b) If necessary, open the project properties and
|
||||
adapt the Windows Target Platform Version in
|
||||
the Configuration Properties, General section;
|
||||
we support the latest version at the time of release.
|
||||
b) If necessary, open the project properties and adapt the
|
||||
Windows Target Platform Version (or Windows SDK Version)
|
||||
in the Configuration Properties, General section.
|
||||
c) If you get a warning saying that a platform cannot be found,
|
||||
you can either
|
||||
* forgo the platform and ignore the warning, or
|
||||
* remove the platform in the Configuration Manager, or
|
||||
* install the corresponding platform Buildtools in
|
||||
* install the corresponding platform build tools in
|
||||
Visual Studio Installer (Workloads tab Optional components
|
||||
or Individual components tab).
|
||||
d) If you want to build x64 code, change the platform setting from
|
||||
Win32 to x64. You can build Win32 and x64 versions side by side.
|
||||
e) If you want to build ARM/ARM64 code, change the platform setting
|
||||
to ARM/ARM64. Ensure you've installed the ARM/ARM64-Buildtools
|
||||
in Visual Studio Installer (Workloads tab Optional components
|
||||
or Individual components tab).
|
||||
You can build Win32/x64/ARM/ARM64 versions side by side.
|
||||
e) If you want to build ARM/ARM64/ARM64EC code, change the platform
|
||||
setting to ARM/ARM64/ARM64EC. Ensure you’ve installed the
|
||||
ARM/ARM64/ARM64EC build tools in Visual Studio Installer
|
||||
(Workloads tab Optional components or Individual components tab).
|
||||
You can build Win32/x64/ARM/ARM64/ARM64EC versions side by side.
|
||||
3. Open the solution file apps.sln, build the application projects.
|
||||
4. To perform the self-test, execute the command line
|
||||
nmake /f makefile.vs test-32
|
||||
for the Win32 build, or on a 64-bit system
|
||||
nmake /f makefile.vs test-64
|
||||
for the x64 build.
|
||||
Note: test options for ARM code will be added
|
||||
as soon as Windows on ARM reference devices are available.
|
||||
To date there are no Windows on ARM reference devices available.
|
||||
5. Move the application .exe files from the Release folder to an
|
||||
appropriate location on your path.
|
||||
|
||||
|
||||
Microsoft Windows, Visual Studio 2022 Version 17:
|
||||
Microsoft Windows, Embarcadero C++Builder/RAD Studio 10.4-11:
|
||||
|
||||
We include makefiles that should work as project files in Visual Studio
|
||||
2022 Version 17 or later. There is a library makefile that builds the
|
||||
IJG library as a static Win32/x64/ARM/ARM64 library, and application
|
||||
makefiles that build the sample applications as Win32/x64/ARM/ARM64
|
||||
console applications. (Even if you only want the library, we recommend
|
||||
building the applications so that you can run the self-test.)
|
||||
We include makefiles that should work as project files in C++Builder/RAD
|
||||
Studio 10.4-11 or later. There is a library makefile that builds the
|
||||
IJG library as a static Win32/Win64 library, and application makefiles
|
||||
that build the sample applications as Win32/Win64 console applications.
|
||||
(Even if you only want the library, we recommend building the
|
||||
applications so that you can run the self-test.)
|
||||
|
||||
To use:
|
||||
1. Ensure you’ve checked the item "Desktop development with C++" in the
|
||||
Workloads tab of Visual Studio Installer.
|
||||
Open the Developer Command Prompt for VS 2022, change to the source
|
||||
directory and execute the command line
|
||||
nmake /f makefile.vs setup-v17
|
||||
1. Open the RAD Studio Command Prompt (or the standard Windows Command
|
||||
Prompt, since the environment is set system-wide during RAD Studio
|
||||
installation), change to the source directory and execute the command
|
||||
line
|
||||
make -fmakefile.b32 setup-cb
|
||||
This will move jconfig.vc to jconfig.h and makefiles to project files.
|
||||
(Note that the renaming is critical!)
|
||||
Alternatively you can use
|
||||
nmake /f makefile.vs setupcopy-v17
|
||||
This will create renamed copies of the files, which allows to repeat
|
||||
the setup later.
|
||||
2. Open the solution file jpeg.sln, build the library project.
|
||||
a) If you are using Visual Studio more recent than
|
||||
2022 Version 17, you'll probably get a message
|
||||
saying that the project files are being updated.
|
||||
b) If necessary, open the project properties and
|
||||
adapt the Windows Target Platform Version in
|
||||
the Configuration Properties, General section;
|
||||
we support the latest version at the time of release.
|
||||
c) If you get a warning saying that a platform cannot be found,
|
||||
you can either
|
||||
* forgo the platform and ignore the warning, or
|
||||
* remove the platform in the Configuration Manager, or
|
||||
* install the corresponding platform Buildtools in
|
||||
Visual Studio Installer (Workloads tab Optional components
|
||||
or Individual components tab).
|
||||
d) If you want to build x64 code, change the platform setting from
|
||||
Win32 to x64. You can build Win32 and x64 versions side by side.
|
||||
e) If you want to build ARM/ARM64 code, change the platform setting
|
||||
to ARM/ARM64. Ensure you've installed the ARM/ARM64-Buildtools
|
||||
in Visual Studio Installer (Workloads tab Optional components
|
||||
or Individual components tab).
|
||||
You can build Win32/x64/ARM/ARM64 versions side by side.
|
||||
3. Open the solution file apps.sln, build the application projects.
|
||||
make -fmakefile.b32 setupcopy-cb
|
||||
This will create renamed copies of the files,
|
||||
which allows to repeat the setup later.
|
||||
(You can use one of the other makefiles .c32,
|
||||
.d32, .x32, or .b64 instead of .b32.)
|
||||
2. Open the project file jpeg.cbproj, build the library project.
|
||||
a) By default, the classic Borland compiler (bcc32) is used for
|
||||
the Win32 build. To enable the Clang-based compiler for a
|
||||
specific project, select Project > Options > C++ Compiler
|
||||
and deselect the Use classic Borland compiler option.
|
||||
b) If you want to build Win64 code, change the platform setting
|
||||
from Windows 32 Bit to Windows 64 Bit.
|
||||
You can build Win32 and Win64 versions side by side.
|
||||
3. Open the project group file apps.groupproj,
|
||||
build the application projects.
|
||||
4. To perform the self-test, execute the command line
|
||||
nmake /f makefile.vs test-32
|
||||
make -fmakefile.b32 test-32
|
||||
for the Win32 build, or on a 64-bit system
|
||||
nmake /f makefile.vs test-64
|
||||
for the x64 build.
|
||||
make -fmakefile.b32 test-64
|
||||
for the Win64 build.
|
||||
5. Move the application .exe files from the Release folder to an
|
||||
appropriate location on your path.
|
||||
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jccoefct.c
|
||||
*
|
||||
* Copyright (C) 1994-1997, Thomas G. Lane.
|
||||
* Modified 2003-2020 by Guido Vollbeding.
|
||||
* Modified 2003-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -41,9 +41,9 @@ typedef struct {
|
||||
int MCU_rows_per_iMCU_row; /* number of such rows needed */
|
||||
|
||||
/* For single-pass compression, it's sufficient to buffer just one MCU
|
||||
* (although this may prove a bit slow in practice). We append a
|
||||
* workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks, and reuse it
|
||||
* for each MCU constructed and sent.
|
||||
* (although this may prove a bit slow in practice).
|
||||
* We append a workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks,
|
||||
* and reuse it for each MCU constructed and sent.
|
||||
* In multi-pass modes, this array points to the current MCU's blocks
|
||||
* within the virtual arrays.
|
||||
*/
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jccolor.c
|
||||
*
|
||||
* Copyright (C) 1991-1996, Thomas G. Lane.
|
||||
* Modified 2011-2019 by Guido Vollbeding.
|
||||
* Modified 2011-2023 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -40,10 +40,10 @@ typedef my_color_converter * my_cconvert_ptr;
|
||||
* Note that the derived conversion coefficients given in some of these
|
||||
* documents are imprecise. The general conversion equations are
|
||||
* Y = Kr * R + (1 - Kr - Kb) * G + Kb * B
|
||||
* Cb = 0.5 * (B - Y) / (1 - Kb)
|
||||
* Cr = 0.5 * (R - Y) / (1 - Kr)
|
||||
* Cb = (B - Y) / (1 - Kb) / K
|
||||
* Cr = (R - Y) / (1 - Kr) / K
|
||||
* With Kr = 0.299 and Kb = 0.114 (derived according to SMPTE RP 177-1993
|
||||
* from the 1953 FCC NTSC primaries and CIE Illuminant C),
|
||||
* from the 1953 FCC NTSC primaries and CIE Illuminant C), K = 2 for sYCC,
|
||||
* the conversion equations to be implemented are therefore
|
||||
* Y = 0.299 * R + 0.587 * G + 0.114 * B
|
||||
* Cb = -0.168735892 * R - 0.331264108 * G + 0.5 * B + CENTERJSAMPLE
|
||||
@ -62,8 +62,8 @@ typedef my_color_converter * my_cconvert_ptr;
|
||||
* by precalculating the constants times R,G,B for all possible values.
|
||||
* For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
|
||||
* for 9-bit to 12-bit samples it is still acceptable. It's not very
|
||||
* reasonable for 16-bit samples, but if you want lossless storage you
|
||||
* shouldn't be changing colorspace anyway.
|
||||
* reasonable for 16-bit samples, but if you want lossless storage
|
||||
* you shouldn't be changing colorspace anyway.
|
||||
* The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included
|
||||
* in the tables to save adding them separately in the inner loop.
|
||||
*/
|
||||
@ -117,9 +117,9 @@ rgb_ycc_start (j_compress_ptr cinfo)
|
||||
* This ensures that the maximum output will round to MAXJSAMPLE
|
||||
* not MAXJSAMPLE+1, and thus that we don't have to range-limit.
|
||||
*/
|
||||
rgb_ycc_tab[i+B_CB_OFF] = FIX(0.5) * i + CBCR_OFFSET + ONE_HALF-1;
|
||||
rgb_ycc_tab[i+B_CB_OFF] = (i << (SCALEBITS-1)) + CBCR_OFFSET + ONE_HALF-1;
|
||||
/* B=>Cb and R=>Cr tables are the same
|
||||
rgb_ycc_tab[i+R_CR_OFF] = FIX(0.5) * i + CBCR_OFFSET + ONE_HALF-1;
|
||||
rgb_ycc_tab[i+R_CR_OFF] = (i << (SCALEBITS-1)) + CBCR_OFFSET + ONE_HALF-1;
|
||||
*/
|
||||
rgb_ycc_tab[i+G_CR_OFF] = (- FIX(0.418687589)) * i;
|
||||
rgb_ycc_tab[i+B_CR_OFF] = (- FIX(0.081312411)) * i;
|
||||
@ -190,8 +190,8 @@ rgb_ycc_convert (j_compress_ptr cinfo,
|
||||
|
||||
/*
|
||||
* Convert some rows of samples to the JPEG colorspace.
|
||||
* This version handles RGB->grayscale conversion, which is the same
|
||||
* as the RGB->Y portion of RGB->YCbCr.
|
||||
* This version handles RGB->grayscale conversion,
|
||||
* which is the same as the RGB->Y portion of RGB->YCbCr.
|
||||
* We assume rgb_ycc_start has been called (we only use the Y tables).
|
||||
*/
|
||||
|
||||
@ -201,7 +201,7 @@ rgb_gray_convert (j_compress_ptr cinfo,
|
||||
JDIMENSION output_row, int num_rows)
|
||||
{
|
||||
my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
|
||||
register int r, g, b;
|
||||
register INT32 y;
|
||||
register INT32 * ctab = cconvert->rgb_ycc_tab;
|
||||
register JSAMPROW inptr;
|
||||
register JSAMPROW outptr;
|
||||
@ -212,14 +212,11 @@ rgb_gray_convert (j_compress_ptr cinfo,
|
||||
inptr = *input_buf++;
|
||||
outptr = output_buf[0][output_row++];
|
||||
for (col = 0; col < num_cols; col++) {
|
||||
r = GETJSAMPLE(inptr[RGB_RED]);
|
||||
g = GETJSAMPLE(inptr[RGB_GREEN]);
|
||||
b = GETJSAMPLE(inptr[RGB_BLUE]);
|
||||
y = ctab[R_Y_OFF + GETJSAMPLE(inptr[RGB_RED])];
|
||||
y += ctab[G_Y_OFF + GETJSAMPLE(inptr[RGB_GREEN])];
|
||||
y += ctab[B_Y_OFF + GETJSAMPLE(inptr[RGB_BLUE])];
|
||||
inptr += RGB_PIXELSIZE;
|
||||
/* Y */
|
||||
outptr[col] = (JSAMPLE)
|
||||
((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
|
||||
>> SCALEBITS);
|
||||
outptr[col] = (JSAMPLE) (y >> SCALEBITS);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
156
jpeg/jchuff.c
156
jpeg/jchuff.c
@ -2,7 +2,7 @@
|
||||
* jchuff.c
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* Modified 2006-2020 by Guido Vollbeding.
|
||||
* Modified 2006-2023 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -26,17 +26,11 @@
|
||||
|
||||
|
||||
/* The legal range of a DCT coefficient is
|
||||
* -1024 .. +1023 for 8-bit data;
|
||||
* -16384 .. +16383 for 12-bit data.
|
||||
* Hence the magnitude should always fit in 10 or 14 bits respectively.
|
||||
* -1024 .. +1023 for 8-bit sample data precision;
|
||||
* -16384 .. +16383 for 12-bit sample data precision.
|
||||
* Hence the magnitude should always fit in sample data precision + 2 bits.
|
||||
*/
|
||||
|
||||
#if BITS_IN_JSAMPLE == 8
|
||||
#define MAX_COEF_BITS 10
|
||||
#else
|
||||
#define MAX_COEF_BITS 14
|
||||
#endif
|
||||
|
||||
/* Derived data constructed for each Huffman table */
|
||||
|
||||
typedef struct {
|
||||
@ -547,6 +541,7 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
|
||||
register int temp, temp2;
|
||||
register int nbits;
|
||||
int max_coef_bits;
|
||||
int blkn, ci, tbl;
|
||||
ISHIFT_TEMPS
|
||||
|
||||
@ -558,6 +553,9 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
if (entropy->restarts_to_go == 0)
|
||||
emit_restart_e(entropy, entropy->next_restart_num);
|
||||
|
||||
/* Since we're encoding a difference, the range limit is twice as much. */
|
||||
max_coef_bits = cinfo->data_precision + 3;
|
||||
|
||||
/* Encode the MCU data blocks */
|
||||
for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
|
||||
ci = cinfo->MCU_membership[blkn];
|
||||
@ -569,12 +567,17 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
temp = IRIGHT_SHIFT((int) (MCU_data[blkn][0][0]), cinfo->Al);
|
||||
|
||||
/* DC differences are figured on the point-transformed values. */
|
||||
temp2 = temp - entropy->saved.last_dc_val[ci];
|
||||
if ((temp2 = temp - entropy->saved.last_dc_val[ci]) == 0) {
|
||||
/* Count/emit the Huffman-coded symbol for the number of bits */
|
||||
emit_dc_symbol(entropy, tbl, 0);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
entropy->saved.last_dc_val[ci] = temp;
|
||||
|
||||
/* Encode the DC coefficient difference per section G.1.2.1 */
|
||||
temp = temp2;
|
||||
if (temp < 0) {
|
||||
if ((temp = temp2) < 0) {
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
/* For a negative input, want temp2 = bitwise complement of abs(input) */
|
||||
/* This code assumes we are on a two's complement machine */
|
||||
@ -583,14 +586,10 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 0;
|
||||
while (temp) {
|
||||
nbits++;
|
||||
temp >>= 1;
|
||||
}
|
||||
/* Check for out-of-range coefficient values.
|
||||
* Since we're encoding a difference, the range limit is twice as much.
|
||||
*/
|
||||
if (nbits > MAX_COEF_BITS+1)
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values */
|
||||
if (nbits > max_coef_bits)
|
||||
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Count/emit the Huffman-coded symbol for the number of bits */
|
||||
@ -598,7 +597,6 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
|
||||
/* Emit that number of bits of the value, if positive, */
|
||||
/* or the complement of its magnitude, if negative. */
|
||||
if (nbits) /* emit_bits rejects calls with size 0 */
|
||||
emit_bits_e(entropy, (unsigned int) temp2, nbits);
|
||||
}
|
||||
|
||||
@ -633,7 +631,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
register int temp, temp2;
|
||||
register int nbits;
|
||||
register int r, k;
|
||||
int Se, Al;
|
||||
int Se, Al, max_coef_bits;
|
||||
|
||||
entropy->next_output_byte = cinfo->dest->next_output_byte;
|
||||
entropy->free_in_buffer = cinfo->dest->free_in_buffer;
|
||||
@ -646,6 +644,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
Se = cinfo->Se;
|
||||
Al = cinfo->Al;
|
||||
natural_order = cinfo->natural_order;
|
||||
max_coef_bits = cinfo->data_precision + 2;
|
||||
|
||||
/* Encode the MCU data block */
|
||||
block = MCU_data[0];
|
||||
@ -666,18 +665,23 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
*/
|
||||
if (temp < 0) {
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
temp >>= Al; /* apply the point transform */
|
||||
/* Apply the point transform, and watch out for case */
|
||||
/* that nonzero coef is zero after point transform. */
|
||||
if ((temp >>= Al) == 0) {
|
||||
r++;
|
||||
continue;
|
||||
}
|
||||
/* For a negative coef, want temp2 = bitwise complement of abs(coef) */
|
||||
temp2 = ~temp;
|
||||
} else {
|
||||
temp >>= Al; /* apply the point transform */
|
||||
temp2 = temp;
|
||||
}
|
||||
/* Watch out for case that nonzero coef is zero after point transform */
|
||||
if (temp == 0) {
|
||||
/* Apply the point transform, and watch out for case */
|
||||
/* that nonzero coef is zero after point transform. */
|
||||
if ((temp >>= Al) == 0) {
|
||||
r++;
|
||||
continue;
|
||||
}
|
||||
temp2 = temp;
|
||||
}
|
||||
|
||||
/* Emit any pending EOBRUN */
|
||||
if (entropy->EOBRUN > 0)
|
||||
@ -689,11 +693,11 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKARRAY MCU_data)
|
||||
}
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 1; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1))
|
||||
nbits++;
|
||||
nbits = 0;
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values */
|
||||
if (nbits > MAX_COEF_BITS)
|
||||
if (nbits > max_coef_bits)
|
||||
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Count/emit Huffman symbol for run length / number of bits */
|
||||
@ -916,13 +920,17 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
|
||||
register int nbits;
|
||||
register int r, k;
|
||||
int Se = state->cinfo->lim_Se;
|
||||
int max_coef_bits = state->cinfo->data_precision + 3;
|
||||
const int * natural_order = state->cinfo->natural_order;
|
||||
|
||||
/* Encode the DC coefficient difference per section F.1.2.1 */
|
||||
|
||||
temp = temp2 = block[0] - last_dc_val;
|
||||
|
||||
if (temp < 0) {
|
||||
if ((temp = block[0] - last_dc_val) == 0) {
|
||||
/* Emit the Huffman-coded symbol for the number of bits */
|
||||
if (! emit_bits_s(state, dctbl->ehufco[0], dctbl->ehufsi[0]))
|
||||
return FALSE;
|
||||
} else {
|
||||
if ((temp2 = temp) < 0) {
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
/* For a negative input, want temp2 = bitwise complement of abs(input) */
|
||||
/* This code assumes we are on a two's complement machine */
|
||||
@ -931,14 +939,12 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 0;
|
||||
while (temp) {
|
||||
nbits++;
|
||||
temp >>= 1;
|
||||
}
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values.
|
||||
* Since we're encoding a difference, the range limit is twice as much.
|
||||
*/
|
||||
if (nbits > MAX_COEF_BITS+1)
|
||||
if (nbits > max_coef_bits)
|
||||
ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Emit the Huffman-coded symbol for the number of bits */
|
||||
@ -947,18 +953,20 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
|
||||
|
||||
/* Emit that number of bits of the value, if positive, */
|
||||
/* or the complement of its magnitude, if negative. */
|
||||
if (nbits) /* emit_bits rejects calls with size 0 */
|
||||
if (! emit_bits_s(state, (unsigned int) temp2, nbits))
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* Encode the AC coefficients per section F.1.2.2 */
|
||||
|
||||
r = 0; /* r = run length of zeros */
|
||||
|
||||
for (k = 1; k <= Se; k++) {
|
||||
if ((temp2 = block[natural_order[k]]) == 0) {
|
||||
if ((temp = block[natural_order[k]]) == 0) {
|
||||
r++;
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
|
||||
/* if run length > 15, must emit special run-length-16 codes (0xF0) */
|
||||
while (r > 15) {
|
||||
if (! emit_bits_s(state, actbl->ehufco[0xF0], actbl->ehufsi[0xF0]))
|
||||
@ -966,19 +974,22 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
|
||||
r -= 16;
|
||||
}
|
||||
|
||||
temp = temp2;
|
||||
if (temp < 0) {
|
||||
if ((temp2 = temp) < 0) {
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
/* For a negative coef, want temp2 = bitwise complement of abs(coef) */
|
||||
/* This code assumes we are on a two's complement machine */
|
||||
temp2--;
|
||||
}
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 1; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1))
|
||||
nbits++;
|
||||
/* Check for out-of-range coefficient values */
|
||||
if (nbits > MAX_COEF_BITS)
|
||||
nbits = 0;
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values.
|
||||
* Use ">=" instead of ">" so can use the
|
||||
* same one larger limit from DC check here.
|
||||
*/
|
||||
if (nbits >= max_coef_bits)
|
||||
ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Emit Huffman symbol for run length / number of bits */
|
||||
@ -991,8 +1002,7 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
|
||||
if (! emit_bits_s(state, (unsigned int) temp2, nbits))
|
||||
return FALSE;
|
||||
|
||||
r = 0;
|
||||
}
|
||||
r = 0; /* reset zero run length */
|
||||
}
|
||||
|
||||
/* If the last coef(s) were zero, emit an end-of-block code */
|
||||
@ -1122,28 +1132,31 @@ htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
|
||||
register int nbits;
|
||||
register int r, k;
|
||||
int Se = cinfo->lim_Se;
|
||||
int max_coef_bits = cinfo->data_precision + 3;
|
||||
const int * natural_order = cinfo->natural_order;
|
||||
|
||||
/* Encode the DC coefficient difference per section F.1.2.1 */
|
||||
|
||||
temp = block[0] - last_dc_val;
|
||||
if ((temp = block[0] - last_dc_val) == 0) {
|
||||
/* Count the Huffman symbol for the number of bits */
|
||||
dc_counts[0]++;
|
||||
} else {
|
||||
if (temp < 0)
|
||||
temp = -temp;
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 0;
|
||||
while (temp) {
|
||||
nbits++;
|
||||
temp >>= 1;
|
||||
}
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values.
|
||||
* Since we're encoding a difference, the range limit is twice as much.
|
||||
*/
|
||||
if (nbits > MAX_COEF_BITS+1)
|
||||
if (nbits > max_coef_bits)
|
||||
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Count the Huffman symbol for the number of bits */
|
||||
dc_counts[nbits]++;
|
||||
}
|
||||
|
||||
/* Encode the AC coefficients per section F.1.2.2 */
|
||||
|
||||
@ -1152,30 +1165,33 @@ htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
|
||||
for (k = 1; k <= Se; k++) {
|
||||
if ((temp = block[natural_order[k]]) == 0) {
|
||||
r++;
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
|
||||
/* if run length > 15, must emit special run-length-16 codes (0xF0) */
|
||||
while (r > 15) {
|
||||
ac_counts[0xF0]++;
|
||||
r -= 16;
|
||||
}
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
if (temp < 0)
|
||||
temp = -temp;
|
||||
temp = -temp; /* temp is abs value of input */
|
||||
|
||||
/* Find the number of bits needed for the magnitude of the coefficient */
|
||||
nbits = 1; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1))
|
||||
nbits++;
|
||||
/* Check for out-of-range coefficient values */
|
||||
if (nbits > MAX_COEF_BITS)
|
||||
nbits = 0;
|
||||
do nbits++; /* there must be at least one 1 bit */
|
||||
while ((temp >>= 1));
|
||||
/* Check for out-of-range coefficient values.
|
||||
* Use ">=" instead of ">" so can use the
|
||||
* same one larger limit from DC check here.
|
||||
*/
|
||||
if (nbits >= max_coef_bits)
|
||||
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
|
||||
|
||||
/* Count Huffman symbol for run length / number of bits */
|
||||
ac_counts[(r << 4) + nbits]++;
|
||||
|
||||
r = 0;
|
||||
}
|
||||
r = 0; /* reset zero run length */
|
||||
}
|
||||
|
||||
/* If the last coef(s) were zero, emit an end-of-block code */
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jdatadst.c
|
||||
*
|
||||
* Copyright (C) 1994-1996, Thomas G. Lane.
|
||||
* Modified 2009-2019 by Guido Vollbeding.
|
||||
* Modified 2009-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -28,17 +28,17 @@ extern void free JPP((void *ptr));
|
||||
|
||||
/* Expanded data destination object for stdio output */
|
||||
|
||||
#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */
|
||||
|
||||
typedef struct {
|
||||
struct jpeg_destination_mgr pub; /* public fields */
|
||||
|
||||
FILE * outfile; /* target stream */
|
||||
JOCTET * buffer; /* start of buffer */
|
||||
JOCTET buffer[OUTPUT_BUF_SIZE]; /* output buffer */
|
||||
} my_destination_mgr;
|
||||
|
||||
typedef my_destination_mgr * my_dest_ptr;
|
||||
|
||||
#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */
|
||||
|
||||
|
||||
/* Expanded data destination object for memory output */
|
||||
|
||||
@ -65,10 +65,6 @@ init_destination (j_compress_ptr cinfo)
|
||||
{
|
||||
my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
|
||||
|
||||
/* Allocate the output buffer --- it will be released when done with image */
|
||||
dest->buffer = (JOCTET *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_IMAGE, OUTPUT_BUF_SIZE * SIZEOF(JOCTET));
|
||||
|
||||
dest->pub.next_output_byte = dest->buffer;
|
||||
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
|
||||
}
|
||||
@ -187,8 +183,8 @@ term_mem_destination (j_compress_ptr cinfo)
|
||||
|
||||
/*
|
||||
* Prepare for output to a stdio stream.
|
||||
* The caller must have already opened the stream, and is responsible
|
||||
* for closing it after finishing compression.
|
||||
* The caller must have already opened the stream,
|
||||
* and is responsible for closing it after finishing compression.
|
||||
*/
|
||||
|
||||
GLOBAL(void)
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jdatasrc.c
|
||||
*
|
||||
* Copyright (C) 1994-1996, Thomas G. Lane.
|
||||
* Modified 2009-2019 by Guido Vollbeding.
|
||||
* Modified 2009-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -23,18 +23,18 @@
|
||||
|
||||
/* Expanded data source object for stdio input */
|
||||
|
||||
#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */
|
||||
|
||||
typedef struct {
|
||||
struct jpeg_source_mgr pub; /* public fields */
|
||||
|
||||
FILE * infile; /* source stream */
|
||||
JOCTET * buffer; /* start of buffer */
|
||||
JOCTET buffer[INPUT_BUF_SIZE]; /* input buffer */
|
||||
boolean start_of_file; /* have we gotten any data yet? */
|
||||
} my_source_mgr;
|
||||
|
||||
typedef my_source_mgr * my_src_ptr;
|
||||
|
||||
#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */
|
||||
|
||||
|
||||
/*
|
||||
* Initialize source --- called by jpeg_read_header
|
||||
@ -204,8 +204,8 @@ term_source (j_decompress_ptr cinfo)
|
||||
|
||||
/*
|
||||
* Prepare for input from a stdio stream.
|
||||
* The caller must have already opened the stream, and is responsible
|
||||
* for closing it after finishing decompression.
|
||||
* The caller must have already opened the stream,
|
||||
* and is responsible for closing it after finishing decompression.
|
||||
*/
|
||||
|
||||
GLOBAL(void)
|
||||
@ -213,19 +213,16 @@ jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile)
|
||||
{
|
||||
my_src_ptr src;
|
||||
|
||||
/* The source object and input buffer are made permanent so that a series
|
||||
* of JPEG images can be read from the same file by calling jpeg_stdio_src
|
||||
* only before the first one. (If we discarded the buffer at the end of
|
||||
* one image, we'd likely lose the start of the next one.)
|
||||
/* The source object including the input buffer is made permanent so that
|
||||
* a series of JPEG images can be read from the same file by calling
|
||||
* jpeg_stdio_src only before the first one. (If we discarded the buffer
|
||||
* at the end of one image, we'd likely lose the start of the next one.)
|
||||
* This makes it unsafe to use this manager and a different source
|
||||
* manager serially with the same JPEG object. Caveat programmer.
|
||||
*/
|
||||
if (cinfo->src == NULL) { /* first time for this JPEG object? */
|
||||
cinfo->src = (struct jpeg_source_mgr *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_PERMANENT, SIZEOF(my_source_mgr));
|
||||
src = (my_src_ptr) cinfo->src;
|
||||
src->buffer = (JOCTET *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_PERMANENT, INPUT_BUF_SIZE * SIZEOF(JOCTET));
|
||||
}
|
||||
|
||||
src = (my_src_ptr) cinfo->src;
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jdcolor.c
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* Modified 2011-2020 by Guido Vollbeding.
|
||||
* Modified 2011-2023 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -32,7 +32,9 @@ typedef struct {
|
||||
INT32 * Cb_g_tab; /* => table for Cb to G conversion */
|
||||
|
||||
/* Private state for RGB->Y conversion */
|
||||
INT32 * rgb_y_tab; /* => table for RGB to Y conversion */
|
||||
INT32 * R_y_tab; /* => table for R to Y conversion */
|
||||
INT32 * G_y_tab; /* => table for G to Y conversion */
|
||||
INT32 * B_y_tab; /* => table for B to Y conversion */
|
||||
} my_color_deconverter;
|
||||
|
||||
typedef my_color_deconverter * my_cconvert_ptr;
|
||||
@ -87,29 +89,17 @@ typedef my_color_deconverter * my_cconvert_ptr;
|
||||
* by precalculating the constants times Cb and Cr for all possible values.
|
||||
* For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
|
||||
* for 9-bit to 12-bit samples it is still acceptable. It's not very
|
||||
* reasonable for 16-bit samples, but if you want lossless storage you
|
||||
* shouldn't be changing colorspace anyway.
|
||||
* The Cr=>R and Cb=>B values can be rounded to integers in advance; the
|
||||
* values for the G calculation are left scaled up, since we must add them
|
||||
* together before rounding.
|
||||
* reasonable for 16-bit samples, but if you want lossless storage
|
||||
* you shouldn't be changing colorspace anyway.
|
||||
* The Cr=>R and Cb=>B values can be rounded to integers in advance;
|
||||
* the values for the G calculation are left scaled up,
|
||||
* since we must add them together before rounding.
|
||||
*/
|
||||
|
||||
#define SCALEBITS 16 /* speediest right-shift on some machines */
|
||||
#define ONE_HALF ((INT32) 1 << (SCALEBITS-1))
|
||||
#define FIX(x) ((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
|
||||
|
||||
/* We allocate one big table for RGB->Y conversion and divide it up into
|
||||
* three parts, instead of doing three alloc_small requests. This lets us
|
||||
* use a single table base address, which can be held in a register in the
|
||||
* inner loops on many machines (more than can hold all three addresses,
|
||||
* anyway).
|
||||
*/
|
||||
|
||||
#define R_Y_OFF 0 /* offset to R => Y section */
|
||||
#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */
|
||||
#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */
|
||||
#define TABLE_SIZE (3*(MAXJSAMPLE+1))
|
||||
|
||||
|
||||
/*
|
||||
* Initialize tables for YCbCr->RGB and BG_YCC->RGB colorspace conversion.
|
||||
@ -249,17 +239,19 @@ LOCAL(void)
|
||||
build_rgb_y_table (j_decompress_ptr cinfo)
|
||||
{
|
||||
my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
|
||||
INT32 * rgb_y_tab;
|
||||
INT32 i;
|
||||
|
||||
/* Allocate and fill in the conversion tables. */
|
||||
cconvert->rgb_y_tab = rgb_y_tab = (INT32 *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_IMAGE, TABLE_SIZE * SIZEOF(INT32));
|
||||
cconvert->R_y_tab = (INT32 *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32));
|
||||
cconvert->G_y_tab = (INT32 *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32));
|
||||
cconvert->B_y_tab = (INT32 *) (*cinfo->mem->alloc_small)
|
||||
((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE+1) * SIZEOF(INT32));
|
||||
|
||||
for (i = 0; i <= MAXJSAMPLE; i++) {
|
||||
rgb_y_tab[i+R_Y_OFF] = FIX(0.299) * i;
|
||||
rgb_y_tab[i+G_Y_OFF] = FIX(0.587) * i;
|
||||
rgb_y_tab[i+B_Y_OFF] = FIX(0.114) * i + ONE_HALF;
|
||||
cconvert->R_y_tab[i] = FIX(0.299) * i;
|
||||
cconvert->G_y_tab[i] = FIX(0.587) * i;
|
||||
cconvert->B_y_tab[i] = FIX(0.114) * i + ONE_HALF;
|
||||
}
|
||||
}
|
||||
|
||||
@ -274,8 +266,10 @@ rgb_gray_convert (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY output_buf, int num_rows)
|
||||
{
|
||||
my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
|
||||
register int r, g, b;
|
||||
register INT32 * ctab = cconvert->rgb_y_tab;
|
||||
register INT32 y;
|
||||
register INT32 * Rytab = cconvert->R_y_tab;
|
||||
register INT32 * Gytab = cconvert->G_y_tab;
|
||||
register INT32 * Bytab = cconvert->B_y_tab;
|
||||
register JSAMPROW outptr;
|
||||
register JSAMPROW inptr0, inptr1, inptr2;
|
||||
register JDIMENSION col;
|
||||
@ -288,13 +282,10 @@ rgb_gray_convert (j_decompress_ptr cinfo,
|
||||
input_row++;
|
||||
outptr = *output_buf++;
|
||||
for (col = 0; col < num_cols; col++) {
|
||||
r = GETJSAMPLE(inptr0[col]);
|
||||
g = GETJSAMPLE(inptr1[col]);
|
||||
b = GETJSAMPLE(inptr2[col]);
|
||||
/* Y */
|
||||
outptr[col] = (JSAMPLE)
|
||||
((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
|
||||
>> SCALEBITS);
|
||||
y = Rytab[GETJSAMPLE(inptr0[col])];
|
||||
y += Gytab[GETJSAMPLE(inptr1[col])];
|
||||
y += Bytab[GETJSAMPLE(inptr2[col])];
|
||||
outptr[col] = (JSAMPLE) (y >> SCALEBITS);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -354,7 +345,10 @@ rgb1_gray_convert (j_decompress_ptr cinfo,
|
||||
{
|
||||
my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
|
||||
register int r, g, b;
|
||||
register INT32 * ctab = cconvert->rgb_y_tab;
|
||||
register INT32 y;
|
||||
register INT32 * Rytab = cconvert->R_y_tab;
|
||||
register INT32 * Gytab = cconvert->G_y_tab;
|
||||
register INT32 * Bytab = cconvert->B_y_tab;
|
||||
register JSAMPROW outptr;
|
||||
register JSAMPROW inptr0, inptr1, inptr2;
|
||||
register JDIMENSION col;
|
||||
@ -373,12 +367,10 @@ rgb1_gray_convert (j_decompress_ptr cinfo,
|
||||
/* Assume that MAXJSAMPLE+1 is a power of 2, so that the MOD
|
||||
* (modulo) operator is equivalent to the bitmask operator AND.
|
||||
*/
|
||||
r = (r + g - CENTERJSAMPLE) & MAXJSAMPLE;
|
||||
b = (b + g - CENTERJSAMPLE) & MAXJSAMPLE;
|
||||
/* Y */
|
||||
outptr[col] = (JSAMPLE)
|
||||
((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
|
||||
>> SCALEBITS);
|
||||
y = Rytab[(r + g - CENTERJSAMPLE) & MAXJSAMPLE];
|
||||
y += Gytab[g];
|
||||
y += Bytab[(b + g - CENTERJSAMPLE) & MAXJSAMPLE];
|
||||
outptr[col] = (JSAMPLE) (y >> SCALEBITS);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -565,8 +557,10 @@ cmyk_yk_convert (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY output_buf, int num_rows)
|
||||
{
|
||||
my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
|
||||
register int r, g, b;
|
||||
register INT32 * ctab = cconvert->rgb_y_tab;
|
||||
register INT32 y;
|
||||
register INT32 * Rytab = cconvert->R_y_tab;
|
||||
register INT32 * Gytab = cconvert->G_y_tab;
|
||||
register INT32 * Bytab = cconvert->B_y_tab;
|
||||
register JSAMPROW outptr;
|
||||
register JSAMPROW inptr0, inptr1, inptr2, inptr3;
|
||||
register JDIMENSION col;
|
||||
@ -580,13 +574,10 @@ cmyk_yk_convert (j_decompress_ptr cinfo,
|
||||
input_row++;
|
||||
outptr = *output_buf++;
|
||||
for (col = 0; col < num_cols; col++) {
|
||||
r = MAXJSAMPLE - GETJSAMPLE(inptr0[col]);
|
||||
g = MAXJSAMPLE - GETJSAMPLE(inptr1[col]);
|
||||
b = MAXJSAMPLE - GETJSAMPLE(inptr2[col]);
|
||||
/* Y */
|
||||
outptr[0] = (JSAMPLE)
|
||||
((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
|
||||
>> SCALEBITS);
|
||||
y = Rytab[MAXJSAMPLE - GETJSAMPLE(inptr0[col])];
|
||||
y += Gytab[MAXJSAMPLE - GETJSAMPLE(inptr1[col])];
|
||||
y += Bytab[MAXJSAMPLE - GETJSAMPLE(inptr2[col])];
|
||||
outptr[0] = (JSAMPLE) (y >> SCALEBITS);
|
||||
/* K passes through unchanged */
|
||||
outptr[1] = inptr3[col]; /* don't need GETJSAMPLE here */
|
||||
outptr += 2;
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jdct.h
|
||||
*
|
||||
* Copyright (C) 1994-1996, Thomas G. Lane.
|
||||
* Modified 2002-2019 by Guido Vollbeding.
|
||||
* Modified 2002-2023 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -158,7 +158,7 @@ typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */
|
||||
#define jpeg_idct_6x12 jRD6x12
|
||||
#define jpeg_idct_5x10 jRD5x10
|
||||
#define jpeg_idct_4x8 jRD4x8
|
||||
#define jpeg_idct_3x6 jRD3x8
|
||||
#define jpeg_idct_3x6 jRD3x6
|
||||
#define jpeg_idct_2x4 jRD2x4
|
||||
#define jpeg_idct_1x2 jRD1x2
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jdmerge.c
|
||||
*
|
||||
* Copyright (C) 1994-1996, Thomas G. Lane.
|
||||
* Modified 2013-2020 by Guido Vollbeding.
|
||||
* Modified 2013-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -20,17 +20,17 @@
|
||||
* B = Y + K4 * Cb
|
||||
* only the Y term varies among the group of pixels corresponding to a pair
|
||||
* of chroma samples, so the rest of the terms can be calculated just once.
|
||||
* At typical sampling ratios, this eliminates half or three-quarters of the
|
||||
* multiplications needed for color conversion.
|
||||
* At typical sampling ratios, this eliminates half or three-quarters
|
||||
* of the multiplications needed for color conversion.
|
||||
*
|
||||
* This file currently provides implementations for the following cases:
|
||||
* YCC => RGB color conversion only (YCbCr or BG_YCC).
|
||||
* Sampling ratios of 2h1v or 2h2v.
|
||||
* No scaling needed at upsample time.
|
||||
* Corner-aligned (non-CCIR601) sampling alignment.
|
||||
* Other special cases could be added, but in most applications these are
|
||||
* the only common cases. (For uncommon cases we fall back on the more
|
||||
* general code in jdsample.c and jdcolor.c.)
|
||||
* Other special cases could be added, but in most applications these
|
||||
* are the only common cases. (For uncommon cases we fall back on
|
||||
* the more general code in jdsample.c and jdcolor.c.)
|
||||
*/
|
||||
|
||||
#define JPEG_INTERNALS
|
||||
@ -286,9 +286,9 @@ h2v1_merged_upsample (j_decompress_ptr cinfo,
|
||||
/* Do the chroma part of the calculation */
|
||||
cb = GETJSAMPLE(*inptr1++);
|
||||
cr = GETJSAMPLE(*inptr2++);
|
||||
cred = Crrtab[cr];
|
||||
cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
|
||||
cblue = Cbbtab[cb];
|
||||
cred = Crrtab[cr];
|
||||
/* Fetch 2 Y values and emit 2 pixels */
|
||||
y = GETJSAMPLE(*inptr0++);
|
||||
outptr[RGB_RED] = range_limit[y + cred];
|
||||
@ -303,15 +303,14 @@ h2v1_merged_upsample (j_decompress_ptr cinfo,
|
||||
}
|
||||
/* If image width is odd, do the last output column separately */
|
||||
if (cinfo->output_width & 1) {
|
||||
y = GETJSAMPLE(*inptr0);
|
||||
cb = GETJSAMPLE(*inptr1);
|
||||
cr = GETJSAMPLE(*inptr2);
|
||||
cred = Crrtab[cr];
|
||||
cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
|
||||
cblue = Cbbtab[cb];
|
||||
y = GETJSAMPLE(*inptr0);
|
||||
outptr[RGB_RED] = range_limit[y + cred];
|
||||
outptr[RGB_GREEN] = range_limit[y + cgreen];
|
||||
outptr[RGB_BLUE] = range_limit[y + cblue];
|
||||
outptr[RGB_RED] = range_limit[y + Crrtab[cr]];
|
||||
outptr[RGB_GREEN] = range_limit[y +
|
||||
((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
|
||||
SCALEBITS))];
|
||||
outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]];
|
||||
}
|
||||
}
|
||||
|
||||
@ -350,9 +349,9 @@ h2v2_merged_upsample (j_decompress_ptr cinfo,
|
||||
/* Do the chroma part of the calculation */
|
||||
cb = GETJSAMPLE(*inptr1++);
|
||||
cr = GETJSAMPLE(*inptr2++);
|
||||
cred = Crrtab[cr];
|
||||
cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
|
||||
cblue = Cbbtab[cb];
|
||||
cred = Crrtab[cr];
|
||||
/* Fetch 4 Y values and emit 4 pixels */
|
||||
y = GETJSAMPLE(*inptr00++);
|
||||
outptr0[RGB_RED] = range_limit[y + cred];
|
||||
@ -379,9 +378,9 @@ h2v2_merged_upsample (j_decompress_ptr cinfo,
|
||||
if (cinfo->output_width & 1) {
|
||||
cb = GETJSAMPLE(*inptr1);
|
||||
cr = GETJSAMPLE(*inptr2);
|
||||
cred = Crrtab[cr];
|
||||
cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
|
||||
cblue = Cbbtab[cb];
|
||||
cred = Crrtab[cr];
|
||||
y = GETJSAMPLE(*inptr00);
|
||||
outptr0[RGB_RED] = range_limit[y + cred];
|
||||
outptr0[RGB_GREEN] = range_limit[y + cgreen];
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jinclude.h
|
||||
*
|
||||
* Copyright (C) 1991-1994, Thomas G. Lane.
|
||||
* Modified 2017 by Guido Vollbeding.
|
||||
* Modified 2017-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -11,8 +11,8 @@
|
||||
* care of by the standard jconfig symbols, but on really weird systems
|
||||
* you may have to edit this file.)
|
||||
*
|
||||
* NOTE: this file is NOT intended to be included by applications using the
|
||||
* JPEG library. Most applications need only include jpeglib.h.
|
||||
* NOTE: this file is NOT intended to be included by applications using
|
||||
* the JPEG library. Most applications need only include jpeglib.h.
|
||||
*/
|
||||
|
||||
|
||||
@ -87,11 +87,71 @@
|
||||
*
|
||||
* Furthermore, macros are provided for fflush() and ferror() in order
|
||||
* to facilitate adaption by applications using an own FILE class.
|
||||
*
|
||||
* You can define your own custom file I/O functions in jconfig.h and
|
||||
* #define JPEG_HAVE_FILE_IO_CUSTOM there to prevent redefinition here.
|
||||
*
|
||||
* You can #define JPEG_USE_FILE_IO_CUSTOM in jconfig.h to use custom file
|
||||
* I/O functions implemented in Delphi VCL (Visual Component Library)
|
||||
* in Vcl.Imaging.jpeg.pas for the TJPEGImage component utilizing
|
||||
* the Delphi RTL (Run-Time Library) TMemoryStream component:
|
||||
*
|
||||
* procedure jpeg_stdio_src(var cinfo: jpeg_decompress_struct;
|
||||
* input_file: TStream); external;
|
||||
*
|
||||
* procedure jpeg_stdio_dest(var cinfo: jpeg_compress_struct;
|
||||
* output_file: TStream); external;
|
||||
*
|
||||
* function jfread(var buf; recsize, reccount: Integer; S: TStream): Integer;
|
||||
* begin
|
||||
* Result := S.Read(buf, recsize * reccount);
|
||||
* end;
|
||||
*
|
||||
* function jfwrite(const buf; recsize, reccount: Integer; S: TStream): Integer;
|
||||
* begin
|
||||
* Result := S.Write(buf, recsize * reccount);
|
||||
* end;
|
||||
*
|
||||
* function jfflush(S: TStream): Integer;
|
||||
* begin
|
||||
* Result := 0;
|
||||
* end;
|
||||
*
|
||||
* function jferror(S: TStream): Integer;
|
||||
* begin
|
||||
* Result := 0;
|
||||
* end;
|
||||
*
|
||||
* TMemoryStream of Delphi RTL has the distinctive feature to provide dynamic
|
||||
* memory buffer management with a file/stream-based interface, particularly for
|
||||
* the write (output) operation, which is easier to apply compared with direct
|
||||
* implementations as given in jdatadst.c for memory destination. Those direct
|
||||
* implementations of dynamic memory write tend to be more difficult to use,
|
||||
* so providing an option like TMemoryStream may be a useful alternative.
|
||||
*
|
||||
* The CFile/CMemFile classes of the Microsoft Foundation Class (MFC) Library
|
||||
* may be used in a similar fashion.
|
||||
*/
|
||||
|
||||
#ifndef JPEG_HAVE_FILE_IO_CUSTOM
|
||||
#ifdef JPEG_USE_FILE_IO_CUSTOM
|
||||
extern size_t jfread(void * __ptr, size_t __size, size_t __n, FILE * __stream);
|
||||
extern size_t jfwrite(const void * __ptr, size_t __size, size_t __n, FILE * __stream);
|
||||
extern int jfflush(FILE * __stream);
|
||||
extern int jferror(FILE * __fp);
|
||||
|
||||
#define JFREAD(file,buf,sizeofbuf) \
|
||||
((size_t) jfread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFWRITE(file,buf,sizeofbuf) \
|
||||
((size_t) jfwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFFLUSH(file) jfflush(file)
|
||||
#define JFERROR(file) jferror(file)
|
||||
#else
|
||||
#define JFREAD(file,buf,sizeofbuf) \
|
||||
((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFWRITE(file,buf,sizeofbuf) \
|
||||
((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFFLUSH(file) fflush(file)
|
||||
#define JFERROR(file) ferror(file)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jmorecfg.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* Modified 1997-2013 by Guido Vollbeding.
|
||||
* Modified 1997-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -351,8 +351,8 @@ typedef enum { FALSE = 0, TRUE = 1 } boolean;
|
||||
|
||||
#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
|
||||
#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN) */
|
||||
#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW) */
|
||||
#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */
|
||||
/* Note: if you selected more than 8-bit data precision, it is dangerous to
|
||||
* turn off ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only
|
||||
@ -369,8 +369,8 @@ typedef enum { FALSE = 0, TRUE = 1 } boolean;
|
||||
|
||||
#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? (Requires DCT_ISLOW)*/
|
||||
#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN) */
|
||||
#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? (Requires DCT_ISLOW) */
|
||||
#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */
|
||||
#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */
|
||||
#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */
|
||||
@ -384,20 +384,31 @@ typedef enum { FALSE = 0, TRUE = 1 } boolean;
|
||||
/*
|
||||
* Ordering of RGB data in scanlines passed to or from the application.
|
||||
* If your application wants to deal with data in the order B,G,R, just
|
||||
* change these macros. You can also deal with formats such as R,G,B,X
|
||||
* (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing
|
||||
* the offsets will also change the order in which colormap data is organized.
|
||||
* #define JPEG_USE_RGB_CUSTOM in jconfig.h, or define your own custom
|
||||
* order in jconfig.h and #define JPEG_HAVE_RGB_CUSTOM.
|
||||
* You can also deal with formats such as R,G,B,X (one extra byte per pixel)
|
||||
* by changing RGB_PIXELSIZE.
|
||||
* Note that changing the offsets will also change
|
||||
* the order in which colormap data is organized.
|
||||
* RESTRICTIONS:
|
||||
* 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
|
||||
* 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
|
||||
* is not 3 (they don't understand about dummy color components!). So you
|
||||
* can't use color quantization if you change that value.
|
||||
* is not 3 (they don't understand about dummy color components!).
|
||||
* So you can't use color quantization if you change that value.
|
||||
*/
|
||||
|
||||
#ifndef JPEG_HAVE_RGB_CUSTOM
|
||||
#ifdef JPEG_USE_RGB_CUSTOM
|
||||
#define RGB_RED 2 /* Offset of Red in an RGB scanline element */
|
||||
#define RGB_GREEN 1 /* Offset of Green */
|
||||
#define RGB_BLUE 0 /* Offset of Blue */
|
||||
#else
|
||||
#define RGB_RED 0 /* Offset of Red in an RGB scanline element */
|
||||
#define RGB_GREEN 1 /* Offset of Green */
|
||||
#define RGB_BLUE 2 /* Offset of Blue */
|
||||
#endif
|
||||
#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */
|
||||
#endif
|
||||
|
||||
|
||||
/* Definitions for speed-related optimizations. */
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
* jpeglib.h
|
||||
*
|
||||
* Copyright (C) 1991-1998, Thomas G. Lane.
|
||||
* Modified 2002-2020 by Guido Vollbeding.
|
||||
* Modified 2002-2022 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -39,7 +39,7 @@ extern "C" {
|
||||
|
||||
#define JPEG_LIB_VERSION 90 /* Compatibility version 9.0 */
|
||||
#define JPEG_LIB_VERSION_MAJOR 9
|
||||
#define JPEG_LIB_VERSION_MINOR 5
|
||||
#define JPEG_LIB_VERSION_MINOR 6
|
||||
|
||||
|
||||
/* Various constants determining the sizes of things.
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*
|
||||
* jversion.h
|
||||
*
|
||||
* Copyright (C) 1991-2022, Thomas G. Lane, Guido Vollbeding.
|
||||
* Copyright (C) 1991-2024, Thomas G. Lane, Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
@ -9,6 +9,6 @@
|
||||
*/
|
||||
|
||||
|
||||
#define JVERSION "9e 16-Jan-2022"
|
||||
#define JVERSION "9f 14-Jan-2024"
|
||||
|
||||
#define JCOPYRIGHT "Copyright (C) 2022, Thomas G. Lane, Guido Vollbeding"
|
||||
#define JCOPYRIGHT "Copyright (C) 2024, Thomas G. Lane, Guido Vollbeding"
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
USING THE IJG JPEG LIBRARY
|
||||
|
||||
Copyright (C) 1994-2019, Thomas G. Lane, Guido Vollbeding.
|
||||
Copyright (C) 1994-2023, Thomas G. Lane, Guido Vollbeding.
|
||||
This file is part of the Independent JPEG Group's software.
|
||||
For conditions of distribution and use, see the accompanying README file.
|
||||
|
||||
@ -285,8 +285,9 @@ that's why the error handler must be initialized first.
|
||||
|
||||
As previously mentioned, the JPEG library delivers compressed data to a
|
||||
"data destination" module. The library includes one data destination
|
||||
module which knows how to write to a stdio stream. You can use your own
|
||||
destination module if you want to do something else, as discussed later.
|
||||
module which knows how to write to memory or to a file (or any stdio stream).
|
||||
You can use your own destination module if you want to do something else,
|
||||
as discussed later.
|
||||
|
||||
If you use the standard destination module, you must open the target stdio
|
||||
stream beforehand. Typical code for this step looks like:
|
||||
@ -532,8 +533,8 @@ both compression and decompression objects.)
|
||||
|
||||
As previously mentioned, the JPEG library reads compressed data from a "data
|
||||
source" module. The library includes one data source module which knows how
|
||||
to read from a stdio stream. You can use your own source module if you want
|
||||
to do something else, as discussed later.
|
||||
to read from memory or from a file (or any stdio stream). You can use your
|
||||
own source module if you want to do something else, as discussed later.
|
||||
|
||||
If you use the standard source module, you must open the source stdio stream
|
||||
beforehand. Typical code for this step looks like:
|
||||
@ -886,7 +887,7 @@ int block_size
|
||||
Larger values produce higher compression,
|
||||
smaller values produce higher quality.
|
||||
An exact DCT stage is possible with 1 or 2.
|
||||
With the default quality of 75 and default Luminance qtable
|
||||
With the default quality of 75 and default quantization tables
|
||||
the DCT+Quantization stage is lossless for value 1.
|
||||
Note that values other than 8 require a SmartScale capable decoder,
|
||||
introduced with IJG JPEG 8. Setting the block_size parameter for
|
||||
|
||||
@ -169,7 +169,7 @@ Switches for advanced users:
|
||||
Larger values produce higher compression,
|
||||
smaller values produce higher quality
|
||||
(exact DCT stage possible with 1 or 2; with the
|
||||
default quality of 75 and default Luminance qtable
|
||||
default quality of 75 and default quantization tables
|
||||
the DCT+Quantization stage is lossless for N=1).
|
||||
CAUTION: An implementation of the JPEG SmartScale
|
||||
extension is required for this feature. SmartScale
|
||||
|
||||
Loading…
Reference in New Issue
Block a user