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Bruce Lai ec2e9ca000 [RVV] Support AR64ToAB64 and RGBA-family color conversions 
Add scalar code for AR64ToAB64, ARGBToRGBA, ARGBToBGRA, ARGBToABGR, RGBAToARGB, BGRAToARGB, and ABGRToARGB.
They are originally implemented by ARGBShffle.
This CL independetly implements them, and only enables for risc-v now.
This CL also add RVV implementation for `RGBA-family <-> RGBA-family` color conversions.

* Run on SiFive internal FPGA(VLEN=128):

Test Case	Speedup
AR64ToAB64_Opt  x4.6
ARGBToRGBA_Opt  x6
ARGBToBGRA_Opt  x6
ARGBToABGR_Opt  x6
RGBAToARGB_Opt  x6

Change-Id: Ie0630901046084aa259699fcdeccc64170d7103f
Signed-off-by: Bruce Lai <bruce.lai@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4797451
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2023-09-05 22:44:48 +00:00
..
libyuv [RVV] Support AR64ToAB64 and RGBA-family color conversions 2023-09-05 22:44:48 +00:00
libyuv.h NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00