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[libpng16] Avoid filter-selection heuristic sum calculations in cases where

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only one filter is a candidate for selection. This trades off code size (added
png_setup_*_row_only() functions) for speed.
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Glenn Randers-Pehrson
2016-06-19 18:43:35 -05:00
parent 9c04f57cab
commit 29135161d7
3 changed files with 110 additions and 7 deletions
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@@ -45,6 +45,9 @@ Version 1.6.24beta02 [June 19, 2016]
implemented in 1.7), however a simple safe fix here is to chose the lowest
numbered filter in the list from png_set_filter (this only works if the
first problem is also fixed) (John Bowler).
Avoid filter-selection heuristic sum calculations in cases where only one
filter is a candidate for selection. This trades off code size (added
png_setup_*_row_only() functions) for speed.
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