fixes integer sanitizer warnings of the form:
runtime error: implicit conversion from type 'unsigned int' of value
4294967295 (32-bit, unsigned) to type 'int' changed the value to -1
(32-bit, signed)
runtime error: implicit conversion from type
'uint8_t' (aka 'unsigned char') of value 128 (8-bit, unsigned) to type
'char' changed the value to -128 (8-bit, signed)
Bug: b/229626362
Change-Id: I6be3c40407cf7a27b79d31ee32d3829ecb78ed66
similar to '* const', __restrict needs to be included in the
declaration to avoid warnings like:
src\dsp\alpha_processing.c(429): warning C4028: formal parameter 1
different from declaration
this change also moves WEBP_RESTRICT to dsp.h to avoid a circular
dependency between it and utils.h which already includes dsp.h
Change-Id: Ib070d358a372e76fae4be5445ab288940b9baac0
DispatchAlpha* functions are hard to speed up, compared to SSE2.
ExtractAlpha sees a ~15% speed-up though.
Change-Id: I8715c2defecbc832f469eed7e6ffd012146b52de
