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[libpng17] Completed full working pngimage test program and added two test

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scripts.  Fixed combination of ~alpha with shift. On read invert alpha,
processing occurred after shift processing, which causes the final values to be
outside the range that should be produced by the shift. Reversing the
order on read makes the two transforms work together correctly and mirrors
the order used on write.
This commit is contained in:
John Bowler
2014-02-05 11:39:59 -06:00
committed by Glenn Randers-Pehrson
parent cf354c2c82
commit dc63b03da1
7 changed files with 1509 additions and 184 deletions
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3
Makefile.am
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@@ -62,7 +62,8 @@ TESTS =\
tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
tests/pngstest-error tests/pngunknown-IDAT\
tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg
tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
tests/pngimage-quick tests/pngimage-full
# These tests are expected, and required, to fail:
XFAIL_TESTS = tests/pngstest-error