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Update bundled libpng to version 1.6.37

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This commit is contained in:
Admiral H. Curtiss
2020-12-12 16:57:24 +01:00
parent d312495934
commit 3d8736f9d7
35 changed files with 5783 additions and 1731 deletions
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19
Externals/libpng/pngwtran.c vendored
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@ -1,10 +1,10 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
* Last changed in libpng 1.6.26 [October 20, 2016]
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -212,9 +212,9 @@ png_do_shift(png_row_infop row_info, png_bytep row,
if (row_info->bit_depth < 8)
{
png_bytep bp = row;
png_size_t i;
size_t i;
unsigned int mask;
png_size_t row_bytes = row_info->rowbytes;
size_t row_bytes = row_info->rowbytes;
if (bit_depth->gray == 1 && row_info->bit_depth == 2)
mask = 0x55;
@ -254,8 +254,7 @@ png_do_shift(png_row_infop row_info, png_bytep row,
for (i = 0; i < istop; i++, bp++)
{
const unsigned int c = i%channels;
unsigned int c = i%channels;
int j;
unsigned int v, out;
@ -283,7 +282,7 @@ png_do_shift(png_row_infop row_info, png_bytep row,
for (bp = row, i = 0; i < istop; i++)
{
const unsigned int c = i%channels;
unsigned int c = i%channels;
int j;
unsigned int value, v;
@ -514,7 +513,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
(png_ptr, /* png_ptr */
row_info, /* row_info: */
/* png_uint_32 width; width of row */
/* png_size_t rowbytes; number of bytes in row */
/* size_t rowbytes; number of bytes in row */
/* png_byte color_type; color type of pixels */
/* png_byte bit_depth; bit depth of samples */
/* png_byte channels; number of channels (1-4) */