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Tune SSSE3 implementation of fast path quantization

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This commit further simplifies the SSSE3 implementation of the fast
path quantization process.

Change-Id: I5be3286ec0f1bd81d1cf5be3168fece6384fb9ca
This commit is contained in:
Jingning Han
2014-07-07 11:04:37 -07:00
parent 3316918b3b
commit 00fc0e3ff5
1 changed files with 3 additions and 5 deletions
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8
vp9/encoder/x86/vp9_quantize_ssse3_x86_64.asm
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@@ -264,7 +264,6 @@ cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \
pabsw m6, m9 ; m6 = abs(m9)
pabsw m11, m10 ; m11 = abs(m10)
pcmpeqw m7, m7
pcmpeqw m12, m12
paddsw m6, m1 ; m6 += round
punpckhqdq m1, m1
@@ -296,7 +295,7 @@ cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \
mova m6, [ iscanq+ncoeffq*2+ 0] ; m6 = scan[i]
mova m11, [ iscanq+ncoeffq*2+16] ; m11 = scan[i]
psubw m6, m7 ; m6 = scan[i] + 1
psubw m11, m12 ; m11 = scan[i] + 1
psubw m11, m7 ; m11 = scan[i] + 1
pandn m8, m6 ; m8 = max(eob)
pandn m13, m11 ; m13 = max(eob)
pmaxsw m8, m13
@@ -309,10 +308,9 @@ cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \
pabsw m6, m9 ; m6 = abs(m9)
pabsw m11, m10 ; m11 = abs(m10)
pcmpeqw m7, m7
pcmpeqw m12, m12
%ifidn %1, b_32x32
pmovmskb r6, m7
pmovmskb r2, m12
pmovmskb r2, m7
or r6, r2
jz .skip_iter
%endif
@@ -343,7 +341,7 @@ cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \
mova m6, [ iscanq+ncoeffq*2+ 0] ; m6 = scan[i]
mova m11, [ iscanq+ncoeffq*2+16] ; m11 = scan[i]
psubw m6, m7 ; m6 = scan[i] + 1
psubw m11, m12 ; m11 = scan[i] + 1
psubw m11, m7 ; m11 = scan[i] + 1
pandn m14, m6 ; m14 = max(eob)
pandn m13, m11 ; m13 = max(eob)
pmaxsw m8, m14