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IJG's JPEG software v6b with lossless JPEG support

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Patch obtained from:
https://sourceforge.net/projects/jpeg/files/ftp.oceana.com

Author date taken from original announcement and timestamp of patch
tarball:
https://groups.google.com/g/comp.protocols.dicom/c/rrkP8BxoMRk/m/Ij4dfprggp8J
This commit is contained in:
Ken Murchison
1999-04-27 00:00:00 +00:00
committed by DRC
parent 5ead57a34a
commit 2e8360e061
62 changed files with 5551 additions and 1840 deletions
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14
jcsample.c
View File

@@ -1,7 +1,7 @@
/*
* jcsample.c
*
* Copyright (C) 1991-1996, Thomas G. Lane.
* Copyright (C) 1991-1998, Thomas G. Lane.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -142,7 +142,7 @@ int_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
{
int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v;
JDIMENSION outcol, outcol_h; /* outcol_h == outcol*h_expand */
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JDIMENSION output_cols = compptr->width_in_data_units * cinfo->data_unit;
JSAMPROW inptr, outptr;
INT32 outvalue;
@@ -192,7 +192,7 @@ fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
cinfo->max_v_samp_factor, cinfo->image_width);
/* Edge-expand */
expand_right_edge(output_data, cinfo->max_v_samp_factor,
cinfo->image_width, compptr->width_in_blocks * DCTSIZE);
cinfo->image_width, compptr->width_in_data_units * cinfo->data_unit);
}
@@ -214,7 +214,7 @@ h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
{
int outrow;
JDIMENSION outcol;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JDIMENSION output_cols = compptr->width_in_data_units * cinfo->data_unit;
register JSAMPROW inptr, outptr;
register int bias;
@@ -251,7 +251,7 @@ h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
{
int inrow, outrow;
JDIMENSION outcol;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JDIMENSION output_cols = compptr->width_in_data_units * cinfo->data_unit;
register JSAMPROW inptr0, inptr1, outptr;
register int bias;
@@ -294,7 +294,7 @@ h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
{
int inrow, outrow;
JDIMENSION colctr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JDIMENSION output_cols = compptr->width_in_data_units * cinfo->data_unit;
register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr;
INT32 membersum, neighsum, memberscale, neighscale;
@@ -394,7 +394,7 @@ fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
{
int outrow;
JDIMENSION colctr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JDIMENSION output_cols = compptr->width_in_data_units * cinfo->data_unit;
register JSAMPROW inptr, above_ptr, below_ptr, outptr;
INT32 membersum, neighsum, memberscale, neighscale;
int colsum, lastcolsum, nextcolsum;