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Imported from libpng-1.0.6g.tar

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Glenn Randers-Pehrson
2000-04-23 23:14:02 -05:00
parent 4accabb590
commit 228bd390ac
47 changed files with 571 additions and 369 deletions
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40
KNOWNBUG
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@@ -1,47 +1,61 @@
Known bugs and suggested enhancements in libpng-1.0.6
1. April 1, 2000 -- BUG
1. April 23, 2000 -- BUG -- binary incompatibility
Libpng-1.0.6 introduced binary incompatibility for applications that
make direct access to the info_ptr and png_ptr, due to the insertion
of the free_me member ahead of some previously existing members.
STATUS: Fixed in libpng-1.0.6g
2. April 15, 2000 -- BUG -- pnggccrd.c
If PNG_NO_GLOBAL_ARRAYS is defined, pnggccrd.c will not compile.
STATUS: Fixed in libpng-1.0.6g
3. April 1, 2000 -- BUG
Under some circumstances old applications that make direct access to
the info_ptr->text and its members might free the same memory that
is also free'ed by libpng during the png_destroy_struct process.
Fixed in libpng-1.0.6-patch-03 and libpng-1.0.6d. The PNG_FREE_TEXT flag
Fixed in libpng-1.0.6-patch-c and libpng-1.0.6d. The PNG_FREE_TEXT flag
bit in info_ptr->free_me is now checked to make sure libpng is responsible
for freeing the memory.
2. April 1, 2000 -- BUG
4. April 1, 2000 -- BUG
The non-ISO-C "strdup()" function is used in png.c
STATUS: The function has been simplified and no longer uses strdup()
in libpng-1.0.6-patch-03 and libpng-1.0.6d.
in libpng-1.0.6-patch-c and libpng-1.0.6d.
3. March 24, 2000 -- BUG
5. March 24, 2000 -- BUG
The png_set_rgb_to_gray_fixed() function is setting incorrect weighting
factors.
STATUS: Fixed in libpng-1.0.6-patch-02 and libpng-1.0.6d.
STATUS: Fixed in libpng-1.0.6-patch-b and libpng-1.0.6d.
4. March 22, 2000 -- BUG
6. March 22, 2000 -- BUG
There are some printf() and fprintf() statements active in pngwutil.c
when PNG_NO_STDIO and PNG_sCAL_SUPPORTED are both defined.
STATUS: Fixed in libpng-1.0.6-patch-01 and libpng-1.0.6d. The strcpy()
STATUS: Fixed in libpng-1.0.6-patch-a and libpng-1.0.6d. The strcpy()
function is used instead.
5. March 22, 2000 -- BUG
7. March 22, 2000 -- BUG
The length of the iCCP chunk data is calculated incorrectly; because
it can contain zeroes, strlen() doesn't work.
STATUS: Fixed in libpng-1.0.6-patch-01 and libpng-1.0.6d by adding a
STATUS: Fixed in libpng-1.0.6-patch-a and libpng-1.0.6d by adding a
data_length parameter to the png_decompress_chunk() function.
6. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
8. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
Loops need to be optimized everywhere
@@ -56,7 +70,7 @@ Known bugs and suggested enhancements in libpng-1.0.6
libpng-1.1.0. About 160 loops will be turned around
in libpng-1.1.Nn, for testing.
7. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
9. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
libpng-1.0.5 and earlier transform colors to gamma=1.0 space for
merging with background, and then back to the image's gamma. The
@@ -68,7 +82,7 @@ Known bugs and suggested enhancements in libpng-1.0.6
STATUS: under development.
8. September 1999 -- ENHANCEMENT --
10. September 1999 -- ENHANCEMENT --
It should be possible to use libpng without floating-point aritmetic.