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watery01 / libyuv

Automatically exported from code.google.com/p/libyuv
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NV12ToARGB is slow on NEON #115

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
NV12ToARGB is fast on x86 by making it weave in assembly.  But its C on NEON.  
Do it like X86 with an NV12 fetch followed by YUV TO RGB

export LIBYUV_REPEAT=1000
./libyuv_unittest --gtest_filter=*NV12*

NV12ToRGB565 is also slow and will benefit from NV12ToARGB

NV12ToARGB_OptVsC (28699 ms)
NV12ToRGB565_OptVsC (32048 ms)

Original issue reported on code.google.com by fbarch...@google.com on 8 Oct 2012 at 9:19

GoogleCodeExporter commented 9 years ago 
Fixed in r395
NV12ToARGB_OptVsC (3255 ms)
NV12ToRGB565_OptVsC (6941 ms)
NV21ToARGB_OptVsC (3284 ms)

Original comment by fbarch...@google.com on 8 Oct 2012 at 10:19

GoogleCodeExporter commented 9 years ago

Original comment by fbarch...@google.com on 8 Oct 2012 at 10:20