2 Commits

Author	SHA1	Message	Date
Pascal Massimino	9102a7b63d	Add a WebPExtractAlpha function to dsp ... This is the opposite of WebPDispatchAlpha + Implement the SSE2 version (cherry picked from commit cddd33405055d70e5aab7b2aabaf1970522dd2e4) Conflicts: src/dsp/alpha_processing_sse2.c Change-Id: I0c297309255f508c5261da8aad01f7e57f924d6c	2014-10-14 12:02:16 +02:00
skal	399b916d27	lossy decoding: correct alpha-rescaling for YUVA format ... The luminance needs to be pre- and post- multiplied by the alpha value in case of rescaling, for proper averaging. Also: - removed util/alpha_processing and moved it to dsp/ - removed WebPInitPremultiply() which was mostly useless and merged it with the new function WebPInitAlphaProcessing() Change-Id: If089cefd4ec53f6880a791c476fb1c7f7c5a8e60	2014-05-27 15:27:13 -07:00