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35 lines
1.3 KiB
Text
35 lines
1.3 KiB
Text
# s_read.dfa
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# Build time configuration of libpng
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#
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# Author: John Bowler
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# Copyright: (c) John Bowler, 2013
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# Usage rights:
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# To the extent possible under law, the author has waived all copyright and
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# related or neighboring rights to this work. This work is published from:
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# United States.
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#
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# Build libpng with simplified read support (only). This builds a minimal
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# libpng able to read all PNG formats and convert them into a small number of
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# well understood memory formats.
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#
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everything = off
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option SIMPLIFIED_READ on
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# It isn't necessary to chose fixed or floating point for the APIs because the
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# simplified API doesn't need fixed or floating point numbers. It is necessary
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# to chose an internal math implementation. The default (because of 'everything
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# = off') is fixed point - turn the floating point implementation on if you have
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# hardware floating point or prefer your software floating point implementation.
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option FLOATING_ARITHMETIC on
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# This is not strictly necessary, but without it the message strings in the API
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# will not be filled in
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option ERROR_TEXT on
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# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
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# need this if you don't use them, they just allow the in-memory layout to be
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# changed to match common hardware formats.
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option SIMPLIFIED_READ_AFIRST on
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option SIMPLIFIED_READ_BGR on
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