Update to libpng 1.6.19
Removes all Android modifications, including
SK_PNG_INDEX_SUPPORTED (for subset decoding).
BUG:23265085
BUG:25424175
Change-Id: Iaa4f6cc9fc6db8e4b46a83211363adfcbf07b589
diff --git a/TODO b/TODO
index 63613b8..7263377 100644
--- a/TODO
+++ b/TODO
@@ -6,6 +6,7 @@
Fix problem with C++ and EXTERN "C".
cHRM transformation.
Remove setjmp/longjmp usage in favor of returning error codes.
+Palette creation.
Add "grayscale->palette" transformation and "palette->grayscale" detection.
Improved dithering.
Multi-lingual error and warning message support.