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[libpng16] Avoid up-cast warnings in pngvalid.c. On ARM the alignment

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requirements of png_modifier are greater than that of png_store and as a
consequence compilation of pngvalid.c results in a warning about increased
alignment requirements because of the bare cast to (png_modifier*). The code
is safe, because the pointer is known to point to a stack allocated
png_modifier, but this change avoids the warning.

  Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
    compiled without the CHECK option it defaulted to on, not off.

  Check user callback behavior in pngunknown.c. Previous versions compiled
    if SAVE_UNKNOWN was not available but did nothing since the callback
    was never implemented.

  Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
This commit is contained in:
John Bowler
2013-09-30 11:24:17 -05:00
committed by Glenn Randers-Pehrson
parent 15a80443de
commit 8f381901e3
6 changed files with 347 additions and 75 deletions
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@@ -4637,16 +4637,28 @@ Version 1.6.4 [September 12, 2013]
Version 1.6.5 [September 14, 2013]
Removed two stray lines of code from arm/arm_init.c.
Version 1.6.6 [September 21, 2013]
Version 1.6.6 [September 30, 2013]
Removed two stray lines of code from arm/arm_init.c, again.
Version 1.6.7beta01 [September 21, 2013]
Version 1.6.7beta01 [September 30, 2013]
Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE
combination
Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also
fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
which terminates the make options (as by default in recent versions of
Gentoo).
Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
png_modifier are greater than that of png_store and as a consequence
compilation of pngvalid.c results in a warning about increased alignment
requirements because of the bare cast to (png_modifier*). The code is safe,
because the pointer is known to point to a stack allocated png_modifier,
but this change avoids the warning.
Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
compiled without the CHECK option it defaulted to on, not off.
Check user callback behavior in pngunknown.c. Previous versions compiled
if SAVE_UNKNOWN was not available but did nothing since the callback
was never implemented.
Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
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