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Update libpng (1.6.35 --> 1.6.36)

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This commit is contained in:
Chaosus
2019-03-04 14:38:24 +03:00
parent 49d82f245b
commit 5a89d08e3f
28 changed files with 656 additions and 457 deletions
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39
thirdparty/libpng/pngrutil.c vendored
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@ -1,10 +1,10 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.6.35 [July 15, 2018]
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 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) 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
@ -1461,8 +1461,7 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
{
/* We have the ICC profile header; do the basic header checks.
*/
const png_uint_32 profile_length =
png_get_uint_32(profile_header);
png_uint_32 profile_length = png_get_uint_32(profile_header);
if (png_icc_check_length(png_ptr, &png_ptr->colorspace,
keyword, profile_length) != 0)
@ -1479,8 +1478,8 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
* profile. The header check has already validated
* that none of this stuff will overflow.
*/
const png_uint_32 tag_count = png_get_uint_32(
profile_header+128);
png_uint_32 tag_count =
png_get_uint_32(profile_header + 128);
png_bytep profile = png_read_buffer(png_ptr,
profile_length, 2/*silent*/);
@ -3132,7 +3131,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
*/
void /* PRIVATE */
png_check_chunk_name(png_const_structrp png_ptr, const png_uint_32 chunk_name)
png_check_chunk_name(png_const_structrp png_ptr, png_uint_32 chunk_name)
{
int i;
png_uint_32 cn=chunk_name;
@ -3151,7 +3150,7 @@ png_check_chunk_name(png_const_structrp png_ptr, const png_uint_32 chunk_name)
}
void /* PRIVATE */
png_check_chunk_length(png_const_structrp png_ptr, const png_uint_32 length)
png_check_chunk_length(png_const_structrp png_ptr, png_uint_32 length)
{
png_alloc_size_t limit = PNG_UINT_31_MAX;
@ -3363,7 +3362,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
/* Hence the pre-compiled masks indexed by PACKSWAP (or not), depth and
* then pass:
*/
static PNG_CONST png_uint_32 row_mask[2/*PACKSWAP*/][3/*depth*/][6] =
static const png_uint_32 row_mask[2/*PACKSWAP*/][3/*depth*/][6] =
{
/* Little-endian byte masks for PACKSWAP */
{ S_MASKS(1,0), S_MASKS(2,0), S_MASKS(4,0) },
@ -3374,7 +3373,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
/* display_mask has only three entries for the odd passes, so index by
* pass>>1.
*/
static PNG_CONST png_uint_32 display_mask[2][3][3] =
static const png_uint_32 display_mask[2][3][3] =
{
/* Little-endian byte masks for PACKSWAP */
{ B_MASKS(1,0), B_MASKS(2,0), B_MASKS(4,0) },
@ -3687,7 +3686,7 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
{
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Offset to next interlace block */
static PNG_CONST unsigned int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const unsigned int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
png_debug(1, "in png_do_read_interlace");
if (row != NULL && row_info != NULL)
@ -4329,16 +4328,16 @@ png_read_finish_row(png_structrp png_ptr)
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
/* Offset to next interlace block */
static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
/* Start of interlace block in the y direction */
static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
/* Offset to next interlace block in the y direction */
static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
png_debug(1, "in png_read_finish_row");
png_ptr->row_number++;
@ -4394,16 +4393,16 @@ png_read_start_row(png_structrp png_ptr)
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
/* Offset to next interlace block */
static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
/* Start of interlace block in the y direction */
static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
/* Offset to next interlace block in the y direction */
static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
unsigned int max_pixel_depth;
size_t row_bytes;