Imported from libpng-1.0.2a.tar
diff --git a/KNOWNBUG b/KNOWNBUG
index 2ff29e6..57c3bb7 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -7,13 +7,80 @@
Loops need to be optimized everywhere
Make them count down instead of up -- Kevin Bracey
-
+
Optimizing compilers don't need this, and making
the change would be error prone -- Tom Lane, Glenn R-P
Question whether i-- or --i is better.
STATUS: Under investigation, postponed until after
- libpng-1.0.2. About 160 loops turned around
- in libpng-1.0.2a, for testing.
+ libpng-1.0.2. About 160 loops will be turned around
+ in libpng-1.0.Nn, for testing.
+
+2. June 15, 1998 -- BUG -- Evan Light
+
+ Under some conditions, 16-bit grayscale images aren't properly
+ expanded to rgb, because png_read_start_row() returns too small a
+ value of max_pixel_depth when png_set_filler() has also been called.
+
+ STATUS: Fixed in libpng-1.0.2a
+
+3. June 16, 1998 -- BUG -- Matt McConnell
+
+ When reading interlaced images with a progressive reader, in some
+ cases (interlaced images less than 3 pixels high) some passes are
+ not skipped that should be.
+
+ STATUS: Fixed in libpng-1.0.2a
+
+4. July 3, 1998 -- ENHANCEMENT -- Glenn R-P
+
+ Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
+
+ STATUS: Done in libpng-1.0.2a, awaiting comment on resulting test
+ images.
+
+5. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
+
+ libpng-1.0.2 and earlier transform colors to gamma=1.0 space for
+ merging with background, and then back to the image's gamma. The
+ bit_depth of the intermediate (gamma=1.0) representation is probably
+ not sufficient. In the typical gamma=1/2.2 situation, the linear
+ pixels need about 4 more bits than the gamma-encoded ones, to avoid
+ loss of precision. A similar situation exists with the rgb_to_gray
+ operation.
+
+ STATUS: under development.
+
+6. August 20, 1998 -- BUG -- Kevin Bracey
+
+ When using the filler transformation, the filler isn't written
+ into the leftmost pixel of each row.
+
+ Also, the filler operation isn't being done right when writing
+ files. Some code that was removed from png_set_filler() in
+ libpng 1.0.1a shouldn't have been removed.
+
+ STATUS: Fixed in libpng-1.0.2a
+
+7. August 23, 1998 -- BUG -- Duncan Simpson
+
+ "static pngcharp tIME_string" should be changed to
+ "static char tIME_string[30]" in pngtest.c
+
+ STATUS: Fixed in libpng-1.0.2a
+
+8. August 24, 1998 -- BUG -- John Cromer
+
+ Order of byte-swap and shift operations seems to be incorrect in
+ png_do_write_transformations()
+
+ STATUS: Under investigation.
+
+9. September 11, 1998 -- ENHANCEMENT -- L. Peter Deutsch
+
+ The PNG_NO_STDIO macro should be split into PNG_NO_STDIO
+ and PNG_NO_CONSOLE_STDIO.
+
+ STATUS: Done in libpng-1.0.2a