2 Commits

Author	SHA1	Message	Date
Ronald S. Bultje	8fb6c58191	Implement sse2 and ssse3 versions for all sub_pixel_variance sizes. ... Overall speedup around 5% (bus @ 1500kbps first 50 frames 4min10 -> 3min58). Specific changes to timings for each function compared to original assembly-optimized versions (or just new version timings if no previous assembly-optimized version was available): sse2 4x4: 99 -> 82 cycles sse2 4x8: 128 cycles sse2 8x4: 121 cycles sse2 8x8: 149 -> 129 cycles sse2 8x16: 235 -> 245 cycles (?) sse2 16x8: 269 -> 203 cycles sse2 16x16: 441 -> 349 cycles sse2 16x32: 641 cycles sse2 32x16: 643 cycles sse2 32x32: 1733 -> 1154 cycles sse2 32x64: 2247 cycles sse2 64x32: 2323 cycles sse2 64x64: 6984 -> 4442 cycles ssse3 4x4: 100 cycles (?) ssse3 4x8: 103 cycles ssse3 8x4: 71 cycles ssse3 8x8: 147 cycles ssse3 8x16: 158 cycles ssse3 16x8: 188 -> 162 cycles ssse3 16x16: 316 -> 273 cycles ssse3 16x32: 535 cycles ssse3 32x16: 564 cycles ssse3 32x32: 973 cycles ssse3 32x64: 1930 cycles ssse3 64x32: 1922 cycles ssse3 64x64: 3760 cycles Change-Id: I81ff6fe51daf35a40d19785167004664d7e0c59d	2013-06-20 09:34:25 -07:00
Ronald S. Bultje	d9fc451666	Move subpixel variance function from common/ to encoder/. ... This seems to only be used in the encoder. Also remove an empty wrapper file that contained forward declarations for this function, but didn't actually define any actual functions. Change-Id: Ifc561eef7ebe374a7d03698055e51e105f6d614b	2013-06-17 16:54:09 -07:00