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Merge pull request #18839 from alalek:update_libjpeg-turbo

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3rdparty: libjpeg-turbo 2.0.5 => 2.0.6
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Alexander Alekhin 2020-11-18 00:14:55 +03:00 committed by GitHub
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23 changed files with 174 additions and 125 deletions
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4
3rdparty/libjpeg-turbo/CMakeLists.txt vendored
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@ -4,9 +4,9 @@ ocv_warnings_disable(CMAKE_C_FLAGS -Wunused-parameter -Wsign-compare -Wshorten-6
set(VERSION_MAJOR 2)
set(VERSION_MINOR 0)
set(VERSION_REVISION 5)
set(VERSION_REVISION 6)
set(VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION})
set(LIBJPEG_TURBO_VERSION_NUMBER 2000005)
set(LIBJPEG_TURBO_VERSION_NUMBER 2000006)
string(TIMESTAMP BUILD "opencv-${OPENCV_VERSION}-libjpeg-turbo")
if(CMAKE_BUILD_TYPE STREQUAL "Debug")

2
3rdparty/libjpeg-turbo/LICENSE.md vendored
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@ -91,7 +91,7 @@ best of our understanding.
The Modified (3-clause) BSD License
===================================
Copyright (C)2009-2019 D. R. Commander. All Rights Reserved.
Copyright (C)2009-2020 D. R. Commander. All Rights Reserved.
Copyright (C)2015 Viktor Szathmáry. All Rights Reserved.
Redistribution and use in source and binary forms, with or without

22
3rdparty/libjpeg-turbo/README.ijg vendored
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@ -223,12 +223,12 @@ https://www.iso.org/standard/54989.html and http://www.itu.int/rec/T-REC-T.871.
A PDF file of the older JFIF 1.02 specification is available at
http://www.w3.org/Graphics/JPEG/jfif3.pdf.
The TIFF 6.0 file format specification can be obtained by FTP from
ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme
found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems.
IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6).
Instead, we recommend the JPEG design proposed by TIFF Technical Note #2
(Compression tag 7). Copies of this Note can be obtained from
The TIFF 6.0 file format specification can be obtained from
http://mirrors.ctan.org/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation
scheme found in the TIFF 6.0 spec of 3-June-92 has a number of serious
problems. IJG does not recommend use of the TIFF 6.0 design (TIFF Compression
tag 6). Instead, we recommend the JPEG design proposed by TIFF Technical Note
#2 (Compression tag 7). Copies of this Note can be obtained from
http://www.ijg.org/files/. It is expected that the next revision
of the TIFF spec will replace the 6.0 JPEG design with the Note's design.
Although IJG's own code does not support TIFF/JPEG, the free libtiff library
@ -243,14 +243,8 @@ The most recent released version can always be found there in
directory "files".
The JPEG FAQ (Frequently Asked Questions) article is a source of some
general information about JPEG.
It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/
and other news.answers archive sites, including the official news.answers
archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/.
If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu
with body
send usenet/news.answers/jpeg-faq/part1
send usenet/news.answers/jpeg-faq/part2
general information about JPEG. It is available at
http://www.faqs.org/faqs/jpeg-faq.
FILE FORMAT COMPATIBILITY

21
3rdparty/libjpeg-turbo/README.md vendored
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@ -2,7 +2,7 @@ Background
==========
libjpeg-turbo is a JPEG image codec that uses SIMD instructions to accelerate
baseline JPEG compression and decompression on x86, x86-64, ARM, PowerPC, and
baseline JPEG compression and decompression on x86, x86-64, Arm, PowerPC, and
MIPS systems, as well as progressive JPEG compression on x86 and x86-64
systems. On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg,
all else being equal. On other types of systems, libjpeg-turbo can still
@ -179,8 +179,8 @@ supported and which aren't.
NOTE: As of this writing, extensive research has been conducted into the
usefulness of DCT scaling as a means of data reduction and SmartScale as a
means of quality improvement. The reader is invited to peruse the research at
<http://www.libjpeg-turbo.org/About/SmartScale> and draw his/her own conclusions,
means of quality improvement. Readers are invited to peruse the research at
<http://www.libjpeg-turbo.org/About/SmartScale> and draw their own conclusions,
but it is the general belief of our project that these features have not
demonstrated sufficient usefulness to justify inclusion in libjpeg-turbo.
@ -287,12 +287,13 @@ following reasons:
(and slightly faster) floating point IDCT algorithm introduced in libjpeg
v8a as opposed to the algorithm used in libjpeg v6b. It should be noted,
however, that this algorithm basically brings the accuracy of the floating
point IDCT in line with the accuracy of the slow integer IDCT. The floating
point DCT/IDCT algorithms are mainly a legacy feature, and they do not
produce significantly more accuracy than the slow integer algorithms (to put
numbers on this, the typical difference in PNSR between the two algorithms
is less than 0.10 dB, whereas changing the quality level by 1 in the upper
range of the quality scale is typically more like a 1.0 dB difference.)
point IDCT in line with the accuracy of the accurate integer IDCT. The
floating point DCT/IDCT algorithms are mainly a legacy feature, and they do
not produce significantly more accuracy than the accurate integer algorithms
(to put numbers on this, the typical difference in PNSR between the two
algorithms is less than 0.10 dB, whereas changing the quality level by 1 in
the upper range of the quality scale is typically more like a 1.0 dB
difference.)
- If the floating point algorithms in libjpeg-turbo are not implemented using
SIMD instructions on a particular platform, then the accuracy of the
@ -340,7 +341,7 @@ The algorithm used by the SIMD-accelerated quantization function cannot produce
correct results whenever the fast integer forward DCT is used along with a JPEG
quality of 98-100. Thus, libjpeg-turbo must use the non-SIMD quantization
function in those cases. This causes performance to drop by as much as 40%.
It is therefore strongly advised that you use the slow integer forward DCT
It is therefore strongly advised that you use the accurate integer forward DCT
whenever encoding images with a JPEG quality of 98 or higher.

4
3rdparty/libjpeg-turbo/src/jchuff.c vendored
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@ -34,10 +34,10 @@
* memory footprint by 64k, which is important for some mobile applications
* that create many isolated instances of libjpeg-turbo (web browsers, for
* instance.) This may improve performance on some mobile platforms as well.
* This feature is enabled by default only on ARM processors, because some x86
* This feature is enabled by default only on Arm processors, because some x86
* chips have a slow implementation of bsr, and the use of clz/bsr cannot be
* shown to have a significant performance impact even on the x86 chips that
* have a fast implementation of it. When building for ARMv6, you can
* have a fast implementation of it. When building for Armv6, you can
* explicitly disable the use of clz/bsr by adding -mthumb to the compiler
* flags (this defines __thumb__).
*/

5
3rdparty/libjpeg-turbo/src/jcinit.c vendored
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@ -1,8 +1,10 @@
/*
* jcinit.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* This file is part of the Independent JPEG Group's software.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -19,6 +21,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegcomp.h"
/*

4
3rdparty/libjpeg-turbo/src/jcphuff.c vendored
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@ -43,10 +43,10 @@
* memory footprint by 64k, which is important for some mobile applications
* that create many isolated instances of libjpeg-turbo (web browsers, for
* instance.) This may improve performance on some mobile platforms as well.
* This feature is enabled by default only on ARM processors, because some x86
* This feature is enabled by default only on Arm processors, because some x86
* chips have a slow implementation of bsr, and the use of clz/bsr cannot be
* shown to have a significant performance impact even on the x86 chips that
* have a fast implementation of it. When building for ARMv6, you can
* have a fast implementation of it. When building for Armv6, you can
* explicitly disable the use of clz/bsr by adding -mthumb to the compiler
* flags (this defines __thumb__).
*/

5
3rdparty/libjpeg-turbo/src/jctrans.c vendored
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@ -4,8 +4,8 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1995-1998, Thomas G. Lane.
* Modified 2000-2009 by Guido Vollbeding.
* It was modified by The libjpeg-turbo Project to include only code relevant
* to libjpeg-turbo.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -17,6 +17,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegcomp.h"
/* Forward declarations */

45
3rdparty/libjpeg-turbo/src/jdapistd.c vendored
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@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2015-2018, D. R. Commander.
* Copyright (C) 2010, 2015-2018, 2020, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@ -21,6 +21,8 @@
#include "jinclude.h"
#include "jdmainct.h"
#include "jdcoefct.h"
#include "jdmaster.h"
#include "jdmerge.h"
#include "jdsample.h"
#include "jmemsys.h"
@ -316,6 +318,8 @@ LOCAL(void)
read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
{
JDIMENSION n;
my_master_ptr master = (my_master_ptr)cinfo->master;
JSAMPARRAY scanlines = NULL;
void (*color_convert) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows) = NULL;
@ -332,8 +336,13 @@ read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
cinfo->cquantize->color_quantize = noop_quantize;
}
if (master->using_merged_upsample && cinfo->max_v_samp_factor == 2) {
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
scanlines = &upsample->spare_row;
}
for (n = 0; n < num_lines; n++)
jpeg_read_scanlines(cinfo, NULL, 1);
jpeg_read_scanlines(cinfo, scanlines, 1);
if (color_convert)
cinfo->cconvert->color_convert = color_convert;
@ -353,6 +362,12 @@ increment_simple_rowgroup_ctr(j_decompress_ptr cinfo, JDIMENSION rows)
{
JDIMENSION rows_left;
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
my_master_ptr master = (my_master_ptr)cinfo->master;
if (master->using_merged_upsample && cinfo->max_v_samp_factor == 2) {
read_and_discard_scanlines(cinfo, rows);
return;
}
/* Increment the counter to the next row group after the skipped rows. */
main_ptr->rowgroup_ctr += rows / cinfo->max_v_samp_factor;
@ -382,21 +397,27 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
{
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
my_master_ptr master = (my_master_ptr)cinfo->master;
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
JDIMENSION i, x;
int y;
JDIMENSION lines_per_iMCU_row, lines_left_in_iMCU_row, lines_after_iMCU_row;
JDIMENSION lines_to_skip, lines_to_read;
/* Two-pass color quantization is not supported. */
if (cinfo->quantize_colors && cinfo->two_pass_quantize)
ERREXIT(cinfo, JERR_NOTIMPL);
if (cinfo->global_state != DSTATE_SCANNING)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
/* Do not skip past the bottom of the image. */
if (cinfo->output_scanline + num_lines >= cinfo->output_height) {
num_lines = cinfo->output_height - cinfo->output_scanline;
cinfo->output_scanline = cinfo->output_height;
(*cinfo->inputctl->finish_input_pass) (cinfo);
cinfo->inputctl->eoi_reached = TRUE;
return cinfo->output_height - cinfo->output_scanline;
return num_lines;
}
if (num_lines == 0)
@ -445,8 +466,10 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
main_ptr->buffer_full = FALSE;
main_ptr->rowgroup_ctr = 0;
main_ptr->context_state = CTX_PREPARE_FOR_IMCU;
upsample->next_row_out = cinfo->max_v_samp_factor;
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
if (!master->using_merged_upsample) {
upsample->next_row_out = cinfo->max_v_samp_factor;
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
}
}
/* Skipping is much simpler when context rows are not required. */
@ -458,8 +481,10 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
cinfo->output_scanline += lines_left_in_iMCU_row;
main_ptr->buffer_full = FALSE;
main_ptr->rowgroup_ctr = 0;
upsample->next_row_out = cinfo->max_v_samp_factor;
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
if (!master->using_merged_upsample) {
upsample->next_row_out = cinfo->max_v_samp_factor;
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
}
}
}
@ -494,7 +519,8 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
cinfo->output_iMCU_row += lines_to_skip / lines_per_iMCU_row;
increment_simple_rowgroup_ctr(cinfo, lines_to_read);
}
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
if (!master->using_merged_upsample)
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
return num_lines;
}
@ -535,7 +561,8 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
* bit odd, since "rows_to_go" seems to be redundantly keeping track of
* output_scanline.
*/
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
if (!master->using_merged_upsample)
upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline;
/* Always skip the requested number of lines. */
return num_lines;

8
3rdparty/libjpeg-turbo/src/jdcoefct.c vendored
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@ -6,7 +6,7 @@
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2010, 2015-2016, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* Copyright (C) 2015, 2020, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -495,11 +495,13 @@ decompress_smooth_data(j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
if (first_row && block_row == 0)
prev_block_row = buffer_ptr;
else
prev_block_row = buffer[block_row - 1];
prev_block_row = buffer[block_row - 1] +
cinfo->master->first_MCU_col[ci];
if (last_row && block_row == block_rows - 1)
next_block_row = buffer_ptr;
else
next_block_row = buffer[block_row + 1];
next_block_row = buffer[block_row + 1] +
cinfo->master->first_MCU_col[ci];
/* We fetch the surrounding DC values using a sliding-register approach.
* Initialize all nine here so as to do the right thing on narrow pics.
*/

9
3rdparty/libjpeg-turbo/src/jdcolor.c vendored
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@ -571,11 +571,10 @@ ycck_cmyk_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
* RGB565 conversion
*/
#define PACK_SHORT_565_LE(r, g, b) ((((r) << 8) & 0xF800) | \
(((g) << 3) & 0x7E0) | ((b) >> 3))
#define PACK_SHORT_565_BE(r, g, b) (((r) & 0xF8) | ((g) >> 5) | \
(((g) << 11) & 0xE000) | \
(((b) << 5) & 0x1F00))
#define PACK_SHORT_565_LE(r, g, b) \
((((r) << 8) & 0xF800) | (((g) << 3) & 0x7E0) | ((b) >> 3))
#define PACK_SHORT_565_BE(r, g, b) \
(((r) & 0xF8) | ((g) >> 5) | (((g) << 11) & 0xE000) | (((b) << 5) & 0x1F00))
#define PACK_TWO_PIXELS_LE(l, r) ((r << 16) | l)
#define PACK_TWO_PIXELS_BE(l, r) ((l << 16) | r)

55
3rdparty/libjpeg-turbo/src/jdmerge.c vendored
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@ -5,7 +5,7 @@
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2009, 2011, 2014-2015, D. R. Commander.
* Copyright (C) 2009, 2011, 2014-2015, 2020, D. R. Commander.
* Copyright (C) 2013, Linaro Limited.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@ -40,41 +40,13 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jdmerge.h"
#include "jsimd.h"
#include "jconfigint.h"
#ifdef UPSAMPLE_MERGING_SUPPORTED
/* Private subobject */
typedef struct {
struct jpeg_upsampler pub; /* public fields */
/* Pointer to routine to do actual upsampling/conversion of one row group */
void (*upmethod) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
/* Private state for YCC->RGB conversion */
int *Cr_r_tab; /* => table for Cr to R conversion */
int *Cb_b_tab; /* => table for Cb to B conversion */
JLONG *Cr_g_tab; /* => table for Cr to G conversion */
JLONG *Cb_g_tab; /* => table for Cb to G conversion */
/* For 2:1 vertical sampling, we produce two output rows at a time.
* We need a "spare" row buffer to hold the second output row if the
* application provides just a one-row buffer; we also use the spare
* to discard the dummy last row if the image height is odd.
*/
JSAMPROW spare_row;
boolean spare_full; /* T if spare buffer is occupied */
JDIMENSION out_row_width; /* samples per output row */
JDIMENSION rows_to_go; /* counts rows remaining in image */
} my_upsampler;
typedef my_upsampler *my_upsample_ptr;
#define SCALEBITS 16 /* speediest right-shift on some machines */
#define ONE_HALF ((JLONG)1 << (SCALEBITS - 1))
#define FIX(x) ((JLONG)((x) * (1L << SCALEBITS) + 0.5))
@ -189,7 +161,7 @@ typedef my_upsampler *my_upsample_ptr;
LOCAL(void)
build_ycc_rgb_table(j_decompress_ptr cinfo)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
int i;
JLONG x;
SHIFT_TEMPS
@ -232,7 +204,7 @@ build_ycc_rgb_table(j_decompress_ptr cinfo)
METHODDEF(void)
start_pass_merged_upsample(j_decompress_ptr cinfo)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
/* Mark the spare buffer empty */
upsample->spare_full = FALSE;
@ -254,7 +226,7 @@ merged_2v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
/* 2:1 vertical sampling case: may need a spare row. */
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
JSAMPROW work_ptrs[2];
JDIMENSION num_rows; /* number of rows returned to caller */
@ -305,7 +277,7 @@ merged_1v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
/* 1:1 vertical sampling case: much easier, never need a spare row. */
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
/* Just do the upsampling. */
(*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr,
@ -420,11 +392,10 @@ h2v2_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
* RGB565 conversion
*/
#define PACK_SHORT_565_LE(r, g, b) ((((r) << 8) & 0xF800) | \
(((g) << 3) & 0x7E0) | ((b) >> 3))
#define PACK_SHORT_565_BE(r, g, b) (((r) & 0xF8) | ((g) >> 5) | \
(((g) << 11) & 0xE000) | \
(((b) << 5) & 0x1F00))
#define PACK_SHORT_565_LE(r, g, b) \
((((r) << 8) & 0xF800) | (((g) << 3) & 0x7E0) | ((b) >> 3))
#define PACK_SHORT_565_BE(r, g, b) \
(((r) & 0xF8) | ((g) >> 5) | (((g) << 11) & 0xE000) | (((b) << 5) & 0x1F00))
#define PACK_TWO_PIXELS_LE(l, r) ((r << 16) | l)
#define PACK_TWO_PIXELS_BE(l, r) ((l << 16) | r)
@ -566,11 +537,11 @@ h2v2_merged_upsample_565D(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
GLOBAL(void)
jinit_merged_upsampler(j_decompress_ptr cinfo)
{
my_upsample_ptr upsample;
my_merged_upsample_ptr upsample;
upsample = (my_upsample_ptr)
upsample = (my_merged_upsample_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_upsampler));
sizeof(my_merged_upsampler));
cinfo->upsample = (struct jpeg_upsampler *)upsample;
upsample->pub.start_pass = start_pass_merged_upsample;
upsample->pub.need_context_rows = FALSE;

47
3rdparty/libjpeg-turbo/src/jdmerge.h vendored Normal file
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@ -0,0 +1,47 @@
/*
* jdmerge.h
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*/
#define JPEG_INTERNALS
#include "jpeglib.h"
#ifdef UPSAMPLE_MERGING_SUPPORTED
/* Private subobject */
typedef struct {
struct jpeg_upsampler pub; /* public fields */
/* Pointer to routine to do actual upsampling/conversion of one row group */
void (*upmethod) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
/* Private state for YCC->RGB conversion */
int *Cr_r_tab; /* => table for Cr to R conversion */
int *Cb_b_tab; /* => table for Cb to B conversion */
JLONG *Cr_g_tab; /* => table for Cr to G conversion */
JLONG *Cb_g_tab; /* => table for Cb to G conversion */
/* For 2:1 vertical sampling, we produce two output rows at a time.
* We need a "spare" row buffer to hold the second output row if the
* application provides just a one-row buffer; we also use the spare
* to discard the dummy last row if the image height is odd.
*/
JSAMPROW spare_row;
boolean spare_full; /* T if spare buffer is occupied */
JDIMENSION out_row_width; /* samples per output row */
JDIMENSION rows_to_go; /* counts rows remaining in image */
} my_merged_upsampler;
typedef my_merged_upsampler *my_merged_upsample_ptr;
#endif /* UPSAMPLE_MERGING_SUPPORTED */

10
3rdparty/libjpeg-turbo/src/jdmrg565.c vendored
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@ -5,7 +5,7 @@
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2013, Linaro Limited.
* Copyright (C) 2014-2015, 2018, D. R. Commander.
* Copyright (C) 2014-2015, 2018, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -19,7 +19,7 @@ h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr;
@ -90,7 +90,7 @@ h2v1_merged_upsample_565D_internal(j_decompress_ptr cinfo,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr;
@ -163,7 +163,7 @@ h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr0, outptr1;
@ -259,7 +259,7 @@ h2v2_merged_upsample_565D_internal(j_decompress_ptr cinfo,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr0, outptr1;

6
3rdparty/libjpeg-turbo/src/jdmrgext.c vendored
View File

@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2011, 2015, D. R. Commander.
* Copyright (C) 2011, 2015, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -25,7 +25,7 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr;
@ -97,7 +97,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register JSAMPROW outptr0, outptr1;

5
3rdparty/libjpeg-turbo/src/jdtrans.c vendored
View File

@ -3,8 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1995-1997, Thomas G. Lane.
* It was modified by The libjpeg-turbo Project to include only code relevant
* to libjpeg-turbo.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -16,6 +16,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegcomp.h"
/* Forward declarations */

4
3rdparty/libjpeg-turbo/src/jfdctint.c vendored
View File

@ -4,11 +4,11 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2015, D. R. Commander.
* Copyright (C) 2015, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains a slow-but-accurate integer implementation of the
* This file contains a slower but more accurate integer implementation of the
* forward DCT (Discrete Cosine Transform).
*
* A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT

4
3rdparty/libjpeg-turbo/src/jidctint.c vendored
View File

@ -5,11 +5,11 @@
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modification developed 2002-2009 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2015, D. R. Commander.
* Copyright (C) 2015, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains a slow-but-accurate integer implementation of the
* This file contains a slower but more accurate integer implementation of the
* inverse DCT (Discrete Cosine Transform). In the IJG code, this routine
* must also perform dequantization of the input coefficients.
*

8
3rdparty/libjpeg-turbo/src/jmorecfg.h vendored
View File

@ -5,7 +5,7 @@
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 1997-2009 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2009, 2011, 2014-2015, 2018, D. R. Commander.
* Copyright (C) 2009, 2011, 2014-2015, 2018, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -273,9 +273,9 @@ typedef int boolean;
/* Capability options common to encoder and decoder: */
#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */
#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */
#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */
#define DCT_ISLOW_SUPPORTED /* accurate integer method */
#define DCT_IFAST_SUPPORTED /* less accurate int method [legacy feature] */
#define DCT_FLOAT_SUPPORTED /* floating-point method [legacy feature] */
/* Encoder capability options: */

3
3rdparty/libjpeg-turbo/src/jpegcomp.h vendored
View File

@ -1,7 +1,7 @@
/*
* jpegcomp.h
*
* Copyright (C) 2010, D. R. Commander.
* Copyright (C) 2010, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -19,6 +19,7 @@
#define _min_DCT_v_scaled_size min_DCT_v_scaled_size
#define _jpeg_width jpeg_width
#define _jpeg_height jpeg_height
#define JERR_ARITH_NOTIMPL JERR_NOT_COMPILED
#else
#define _DCT_scaled_size DCT_scaled_size
#define _DCT_h_scaled_size DCT_scaled_size

8
3rdparty/libjpeg-turbo/src/jpeglib.h vendored
View File

@ -5,7 +5,7 @@
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modified 2002-2009 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2011, 2013-2014, 2016-2017, D. R. Commander.
* Copyright (C) 2009-2011, 2013-2014, 2016-2017, 2020, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@ -244,9 +244,9 @@ typedef enum {
/* DCT/IDCT algorithm options. */
typedef enum {
JDCT_ISLOW, /* slow but accurate integer algorithm */
JDCT_IFAST, /* faster, less accurate integer method */
JDCT_FLOAT /* floating-point: accurate, fast on fast HW */
JDCT_ISLOW, /* accurate integer method */
JDCT_IFAST, /* less accurate integer method [legacy feature] */
JDCT_FLOAT /* floating-point method [legacy feature] */
} J_DCT_METHOD;
#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */

6
3rdparty/libjpeg-turbo/src/jquant2.c vendored
View File

@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2009, 2014-2015, D. R. Commander.
* Copyright (C) 2009, 2014-2015, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@ -1145,7 +1145,7 @@ start_pass_2_quant(j_decompress_ptr cinfo, boolean is_pre_scan)
int i;
/* Only F-S dithering or no dithering is supported. */
/* If user asks for ordered dither, give him F-S. */
/* If user asks for ordered dither, give them F-S. */
if (cinfo->dither_mode != JDITHER_NONE)
cinfo->dither_mode = JDITHER_FS;
@ -1263,7 +1263,7 @@ jinit_2pass_quantizer(j_decompress_ptr cinfo)
cquantize->sv_colormap = NULL;
/* Only F-S dithering or no dithering is supported. */
/* If user asks for ordered dither, give him F-S. */
/* If user asks for ordered dither, give them F-S. */
if (cinfo->dither_mode != JDITHER_NONE)
cinfo->dither_mode = JDITHER_FS;

14
3rdparty/libjpeg-turbo/src/jversion.h vendored
View File

@ -30,23 +30,25 @@
* NOTE: It is our convention to place the authors in the following order:
* - libjpeg-turbo authors (2009-) in descending order of the date of their
* most recent contribution to the project, then in ascending order of the
* date of their first contribution to the project
* date of their first contribution to the project, then in alphabetical
* order
* - Upstream authors in descending order of the date of the first inclusion of
* their code
*/
#define JCOPYRIGHT \
"Copyright (C) 2009-2020 D. R. Commander\n" \
"Copyright (C) 2011-2016 Siarhei Siamashka\n" \
"Copyright (C) 2015, 2020 Google, Inc.\n" \
"Copyright (C) 2019 Arm Limited\n" \
"Copyright (C) 2015-2016, 2018 Matthieu Darbois\n" \
"Copyright (C) 2011-2016 Siarhei Siamashka\n" \
"Copyright (C) 2015 Intel Corporation\n" \
"Copyright (C) 2015 Google, Inc.\n" \
"Copyright (C) 2013-2014 Linaro Limited\n" \
"Copyright (C) 2013-2014 MIPS Technologies, Inc.\n" \
"Copyright (C) 2013 Linaro Limited\n" \
"Copyright (C) 2009, 2012 Pierre Ossman for Cendio AB\n" \
"Copyright (C) 2009-2011 Nokia Corporation and/or its subsidiary(-ies)\n" \
"Copyright (C) 2009 Pierre Ossman for Cendio AB\n" \
"Copyright (C) 1999-2006 MIYASAKA Masaru\n" \
"Copyright (C) 1991-2016 Thomas G. Lane, Guido Vollbeding"
"Copyright (C) 1991-2017 Thomas G. Lane, Guido Vollbeding"
#define JCOPYRIGHT_SHORT \
"Copyright (C) 1991-2020 The libjpeg-turbo Project and many others"