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45 lines
1.5 KiB
45 lines
1.5 KiB
# write.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 no read support and minimal write support. |
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# |
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everything = off |
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# Switch on the write code - this makes a minimalist encoder |
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option WRITE on |
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# Choose fixed or floating point APIs and arithmetic. The choices are |
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# independent but normally they will match. It is typically better to use the |
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# floating point if you have floating point hardware. If you don't know, or |
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# (perhaps) to make libpng smaller used fixed point throughout. |
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#Fixed point: |
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#option FIXED_POINT on |
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#option FLOATING_ARITHMETIC off |
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#Floating point: |
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option FLOATING_POINT on |
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option FLOATING_ARITHMETIC on |
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# Basic error handling, IO and user memory support. The latter allows the |
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# application program to provide its own implementations of 'malloc' and 'free'. |
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option SETJMP on |
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option STDIO on |
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option USER_MEM on |
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# Everything else is optional. Unlike the read code in libpng the write code |
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# does not need to deal with arbitrary formats, so only add support for things |
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# you really do write! For example you might only write sRGB images, sometimes |
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# with transparency and never write 16 bit images, so: |
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option WRITE_sRGB on |
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option WRITE_tRNS on |
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#option WRITE_16BIT off (this is the default with 'everything = off')
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