Glenn Randers-Pehrson 9c5a1baea5 [libpng16] Check for info_ptr == NULL early in png_read_end() so we don't need ...

to run all the png_handle_*() and depend on them to return if info_ptr == NULL.
This improves the performance of png_read_end(png_ptr, NULL) and makes
it more robust against future programming errors.

2014-02-17 09:12:52 -06:00

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