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[libpng16] Changed chunk handler warnings into benign errors, incrementally

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load iCCP
This commit is contained in:
John Bowler
2012-03-21 07:55:46 -05:00
committed by Glenn Randers-Pehrson
parent 51624965e2
commit b11b31aea2
20 changed files with 1914 additions and 1065 deletions
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31
scripts/pnglibconf.dfa
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@@ -32,8 +32,12 @@ file pnglibconf.h scripts/pnglibconf.dfa PNGLCONF_H
# option <name> [requires ...] [if ...] [enables ...] [disabled]
# #define PNG_<name>_SUPPORTED if the requirements are met and
# enable the other options listed
# chunk <name> [requires ...] [disabled]
# Enable chunk processing for the given ancillary chunk
# chunk <name> [requires ...] [enables ...] [disabled]
# Enable chunk processing for the given ancillary chunk; any
# 'requires something' expands to READ_something for read and
# WRITE_something for write, but the enables list members are
# used as given (e.g. enables GAMMA just expands to that on the
# correspond READ_name and WRITE_name lines.)
#
# Note that the 'on' and 'off' keywords, while valid on both option
# and chunk, should not be used in this file because they force the
@@ -461,9 +465,18 @@ option WRITE_TEXT requires WRITE_ANCILLARY_CHUNKS enables TEXT
# API is implemented, they get recorded in pnglibconf.h, but
# can't be changed by the application.
# Check the correctness of cHRM chunks
# Colorspace support (enabled as required); just the support for colorant
# information. Gamma support, likewise, is just support for the gamma
# information, READ_GAMMA is required for gamma transformations (so it
# is possible to read PNG gamma without enabling all the libpng transform
# code - do this for applications that do their own gamma processing)
#
# As of 1.6.0 COLORSPACE is only useful if the application processes the
# information; this is because the library does not do any colorspace
# processing, it just validates the data in the PNG file.
option CHECK_cHRM requires cHRM
option GAMMA disabled
option COLORSPACE enables GAMMA disabled
#
# Artificially align memory - the code typically aligns to 8 byte
@@ -560,18 +573,18 @@ setting IDAT_READ_SIZE default PNG_ZBUF_SIZE
# Ancillary chunks
chunk bKGD
chunk cHRM
chunk gAMA
chunk cHRM enables COLORSPACE
chunk gAMA enables GAMMA
chunk hIST
chunk iCCP
chunk iCCP enables COLORSPACE GAMMA
chunk iTXt
chunk oFFs
chunk pCAL
chunk sCAL
chunk pHYs
chunk sBIT
chunk sCAL
chunk sPLT
chunk sRGB
chunk sRGB enables COLORSPACE GAMMA
chunk tEXt requires TEXT
chunk tIME
chunk tRNS