# HG changeset patch
# User Dnyaneshwar Gorade <[email protected]>
# Date 1381323893 -19800
# Wed Oct 09 18:34:53 2013 +0530
# Node ID dcd7432686e2c9cbe41aa9d9f74482e1d3f1ab47
# Parent ea905eb4f7a43370e60447cbca0eaf1a7046ec78
pixel.inc: Modified sse_ss4 intrinsic function. Removed redundancy using comman
macro PROCESS_SSE_SS4x1.
diff -r ea905eb4f7a4 -r dcd7432686e2 source/common/vec/sse.inc
--- a/source/common/vec/sse.inc Wed Oct 09 18:23:16 2013 +0530
+++ b/source/common/vec/sse.inc Wed Oct 09 18:34:53 2013 +0530
@@ -63,22 +63,19 @@
int sse_ss4(short* fenc, intptr_t strideFenc, short* fref, intptr_t strideFref)
{
int rows = ly;
+ __m128i diff;
+ __m128i sum = _mm_setzero_si128();
+ __m128i m1, n1, sign1, sign2, tmp1, tmp2;
- Vec4i diff(0);
- Vec8s m1, n1;
- Vec4i sum(0);
for (; rows != 0; rows--)
{
- m1.load(fenc);
- n1.load(fref);
- diff = extend_low(m1) - extend_low(n1);
- diff = diff * diff;
- sum += diff;
+ PROCESS_SSE_SS4x1(0);
+
fenc += strideFenc;
fref += strideFref;
}
-
- return horizontal_add(sum);
+ __m128i sum1 = _mm_hadd_epi32(sum, sum); // horizontally add 4
elements
+ return _mm_cvtsi128_si32(_mm_hadd_epi32(sum1, sum1));
}
template<int ly>
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