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[libpng17] Port recent zlib windowBits handling from libpng-1.6.3beta06

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Glenn Randers-Pehrson
2013-05-10 17:37:42 -05:00
parent 0cc23ac171
commit bd56d76417
21 changed files with 1570 additions and 48 deletions
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3
scripts/pnglibconf.dfa
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@@ -238,6 +238,7 @@ option SET_OPTION disabled
# ARM_NEON: the optimization itself
# ARM_NEON_API: allow the optimization to be switched on with png_set_hardware
# ARM_NEON_CHECK: compile a run-time check to see if Neon extensions are
setting ZLIB_VERNUM default @ZLIB_VERNUM
# supported, this is poorly supported and deprectated - use the
# png_set_hardware API.
option ARM_NEON disabled,
@@ -425,7 +426,7 @@ option SET_USER_LIMITS requires USER_LIMITS
# to libpng 1.6; the new interfaces in 1.6 will take several years to become
# popular.
option READ enables READ_INTERLACING
option READ enables READ_INTERLACING SET_OPTION
# Disabling READ_16BIT does not disable reading 16-bit PNG files, but it
# forces them to be chopped down to 8-bit, and disables any 16-bit