mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

[libpng17] Display user limits in the output from pngtest.

Browse Source
This commit is contained in:
Glenn Randers-Pehrson 2015-02-16 22:46:16 -06:00
parent 1d3a1e36a7
commit 92ef42d5e1
6 changed files with 41 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.7.0beta51 - February 15, 2015
Libpng 1.7.0beta51 - February 17, 2015
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -714,7 +714,13 @@ Version 1.7.0beta50 [February 15, 2015]
being tested, a second tst_row buffer. This improves CPU speed
over that achieved by libpng-1.7.0beta49.
Version 1.7.0beta51 [February 15, 2015]
Version 1.7.0beta51 [February 17, 2015]
Combined similar parts of png_write_find_filter() into a png_increase_lmins()
function.
Display user limits in the output from pngtest.
Replaced test for harmless integer overflow (wraparound) in pngwutil.c
with a method that prevents overflow and does not increase cpu usage
significantly.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

8
CHANGES
View File

@ -5003,7 +5003,13 @@ Version 1.7.0beta50 [February 15, 2015]
being tested, a second tst_row buffer. This improves CPU speed
over that achieved by libpng-1.7.0beta49.
Version 1.7.0beta51 [February 15, 2015]
Version 1.7.0beta51 [February 17, 2015]
Combined similar parts of png_write_find_filter() into a png_increase_lmins()
function.
Display user limits in the output from pngtest.
Replaced test for harmless integer overflow (wraparound) in pngwutil.c
with a method that prevents overflow and does not increase cpu usage
significantly.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

24
pngtest.c
View File

@ -1,8 +1,8 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.6.15 [November 20, 2014]
* Copyright (c) 1998-2014 Glenn Randers-Pehrson
* Last changed in libpng 1.6.17 [(PENDING RELEASE)]
* Copyright (c) 1998-2015 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.)
*
@ -1701,6 +1701,8 @@ main(int argc, char *argv[])
int multiple = 0;
int ierror = 0;
png_structp dummy_ptr;
fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
fprintf(STDERR, "%s", png_get_copyright(NULL));
@ -1994,6 +1996,24 @@ main(int argc, char *argv[])
else
fprintf(STDERR, " libpng FAILS test\n");
dummy_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
fprintf(STDERR, " Default limits:\n");
fprintf(STDERR, " width_max = %lu\n",
(unsigned long) png_get_user_width_max(dummy_ptr));
fprintf(STDERR, " height_max = %lu\n",
(unsigned long) png_get_user_height_max(dummy_ptr));
if (png_get_chunk_cache_max(dummy_ptr) == 0)
fprintf(STDERR, " cache_max = unlimited\n");
else
fprintf(STDERR, " cache_max = %lu\n",
(unsigned long) png_get_chunk_cache_max(dummy_ptr));
if (png_get_chunk_malloc_max(dummy_ptr) == 0)
fprintf(STDERR, " malloc_max = unlimited\n");
else
fprintf(STDERR, " malloc_max = %lu\n",
(unsigned long) png_get_chunk_malloc_max(dummy_ptr));
png_destroy_read_struct(&dummy_ptr, NULL, NULL);
return (int)(ierror != 0);
}
#else

2
pngusr.dfa
View File

@ -12,4 +12,4 @@
# @# define PNG_USER_WIDTH_MAX 65535
# @# define PNG_USER_HEIGHT_MAX 65535
# @# define PNG_USER_CHUNK_CACHE_MAX 256
# @# define PNG_USER_CHUNK_MALLOC_MAX 1000000
# @# define PNG_USER_CHUNK_MALLOC_MAX 640000

2
scripts/pnglibconf.dfa
View File

@ -395,7 +395,7 @@ option USER_LIMITS requires READ
# USER_CHUNK_CACHE_MAX limit
setting USER_WIDTH_MAX default 1000000 /* Use 0x7fffffff for unlimited */
setting USER_HEIGHT_MAX default 1000000 /* Use 0x7fffffff for unlimited */
setting USER_CHUNK_CACHE_MAX default 128 /* Use 0 for unlimited */
setting USER_CHUNK_CACHE_MAX default 1000 /* Use 0 for unlimited */
setting USER_CHUNK_MALLOC_MAX default 8000000 /* Use 0 for unlimited */
# If this option is enabled APIs to set the above limits at run time are added;

4
scripts/pnglibconf.h.prebuilt
View File

@ -2,7 +2,7 @@
/* pnglibconf.h - library build configuration */
/* Libpng version 1.7.0beta51 - February 15, 2015 */
/* Libpng version 1.7.0beta51 - February 17, 2015 */
/* Copyright (c) 1998-2014 Glenn Randers-Pehrson */
@ -197,7 +197,7 @@
#define PNG_QUANTIZE_RED_BITS 5
#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
#define PNG_USER_CHUNK_CACHE_MAX 128 /* Use 0 for unlimited */
#define PNG_USER_CHUNK_CACHE_MAX 1000 /* Use 0 for unlimited */
#define PNG_USER_CHUNK_MALLOC_MAX 8000000 /* Use 0 for unlimited */
#define PNG_USER_HEIGHT_MAX 1000000 /* Use 0x7fffffff for unlimited */
#define PNG_USER_WIDTH_MAX 1000000 /* Use 0x7fffffff for unlimited */