# HG changeset patch
# User Yuvaraj Venkatesh <[email protected]>
# Date 1381154809 -19800
# Mon Oct 07 19:36:49 2013 +0530
# Node ID 57a385f2b12c960bac333138f476129e87e8c62a
# Parent 52ee436b58f9aa48757063bd678672d0ab56be01
Replacing getResidual8 function from vector class to intrinsic.
diff -r 52ee436b58f9 -r 57a385f2b12c source/common/vec/pixel8.inc
--- a/source/common/vec/pixel8.inc Mon Oct 07 19:14:25 2013 +0530
+++ b/source/common/vec/pixel8.inc Mon Oct 07 19:36:49 2013 +0530
@@ -62,19 +62,64 @@
void getResidual8(pixel *fenc, pixel *pred, short *resi, int stride)
{
- for (int y = 0; y < 8; y++)
- {
- Vec16uc f;
- f.load(fenc);
- Vec16uc p;
- p.load(pred);
- Vec8s r = extend_low(f) - extend_low(p);
- r.store(resi);
+ __m128i T00, T01, T02;
+
+ T00 = _mm_loadl_epi64((__m128i*)fenc);
+ T01 = _mm_loadl_epi64((__m128i*)pred);
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
//unpack the 64-bit data into 8-bit and interleaves with zeros
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128()); //then
stores in 128-bit register
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)resi, T02);
//perform subtraction and stores the result into memory
- fenc += stride;
- pred += stride;
- resi += stride;
- }
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (2) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (2) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (2) * stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (3) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (3) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (3) * stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (4) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (4) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (4) * stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (5) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (5) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (5) * stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (6) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (6) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (6) * stride), T02);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (7) * stride));
+ T01 = _mm_loadl_epi64((__m128i*)(pred + (7) * stride));
+ T00 = _mm_unpacklo_epi8(T00, _mm_setzero_si128());
+ T01 = _mm_unpacklo_epi8(T01, _mm_setzero_si128());
+ T02 = _mm_sub_epi16(T00, T01);
+ _mm_storeu_si128((__m128i*)(resi + (7) * stride), T02);
+
}
void getResidual16(pixel *fenc, pixel *pred, short *resi, int stride)
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