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690b491af1
* We were re-doing most of the work in plain-C as 'left-over'. * we were always returning has_alpha = true because of a bad mask all_0xff These bugs were conservative and silent, in the sense that we were 'just' doing more work than necessary. Now, the SSE2 version is really 2x faster than the C version. Change-Id: I6c8132a267fe3c7a3d1fa70e7a5fcd10719543fa