ref: bf3fe26f7e1b51ac3578bdd27616f8c3b6e9b7d3
dir: /vp9/encoder/x86/vp9_quantize_ssse3_x86_64.asm/
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%define private_prefix vp9
%include "third_party/x86inc/x86inc.asm"
%include "vpx_dsp/x86/bitdepth_conversion_sse2.asm"
SECTION_RODATA
pw_1: times 8 dw 1
SECTION .text
%macro QUANTIZE_FP 2
cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, round, quant, \
qcoeff, dqcoeff, dequant, \
eob, scan, iscan
; actual quantize loop - setup pointers, rounders, etc.
movifnidn coeffq, coeffmp
movifnidn ncoeffq, ncoeffmp
mov r2, dequantmp
movifnidn roundq, roundmp
movifnidn quantq, quantmp
mova m1, [roundq] ; m1 = round
mova m2, [quantq] ; m2 = quant
%ifidn %1, fp_32x32
pcmpeqw m5, m5
psrlw m5, 15
paddw m1, m5
psrlw m1, 1 ; m1 = (m1 + 1) / 2
%endif
mova m3, [r2q] ; m3 = dequant
mov r3, qcoeffmp
mov r4, dqcoeffmp
mov r5, iscanmp
%ifidn %1, fp_32x32
psllw m2, 1
%endif
pxor m5, m5 ; m5 = dedicated zero
INCREMENT_ELEMENTS_TRAN_LOW coeffq, ncoeffq
lea r5q, [r5q+ncoeffq*2]
INCREMENT_ELEMENTS_TRAN_LOW r3q, ncoeffq
INCREMENT_ELEMENTS_TRAN_LOW r4q, ncoeffq
neg ncoeffq
; get DC and first 15 AC coeffs
LOAD_TRAN_LOW 9, coeffq, ncoeffq ; m9 = c[i]
LOAD_TRAN_LOW 10, coeffq, ncoeffq + 8 ; m10 = c[i]
pabsw m6, m9 ; m6 = abs(m9)
pabsw m11, m10 ; m11 = abs(m10)
pcmpeqw m7, m7
paddsw m6, m1 ; m6 += round
punpckhqdq m1, m1
paddsw m11, m1 ; m11 += round
pmulhw m8, m6, m2 ; m8 = m6*q>>16
punpckhqdq m2, m2
pmulhw m13, m11, m2 ; m13 = m11*q>>16
psignw m8, m9 ; m8 = reinsert sign
psignw m13, m10 ; m13 = reinsert sign
STORE_TRAN_LOW 8, r3q, ncoeffq, 6, 11, 12
STORE_TRAN_LOW 13, r3q, ncoeffq + 8, 6, 11, 12
%ifidn %1, fp_32x32
pabsw m8, m8
pabsw m13, m13
%endif
pmullw m8, m3 ; r4[i] = r3[i] * q
punpckhqdq m3, m3
pmullw m13, m3 ; r4[i] = r3[i] * q
%ifidn %1, fp_32x32
psrlw m8, 1
psrlw m13, 1
psignw m8, m9
psignw m13, m10
psrlw m0, m3, 2
%else
psrlw m0, m3, 1
%endif
STORE_TRAN_LOW 8, r4q, ncoeffq, 6, 11, 12
STORE_TRAN_LOW 13, r4q, ncoeffq + 8, 6, 11, 12
pcmpeqw m8, m5 ; m8 = c[i] == 0
pcmpeqw m13, m5 ; m13 = c[i] == 0
mova m6, [ r5q+ncoeffq*2+ 0] ; m6 = scan[i]
mova m11, [ r5q+ncoeffq*2+16] ; m11 = scan[i]
psubw m6, m7 ; m6 = 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
add ncoeffq, mmsize
jz .accumulate_eob
.ac_only_loop:
LOAD_TRAN_LOW 9, coeffq, ncoeffq ; m9 = c[i]
LOAD_TRAN_LOW 10, coeffq, ncoeffq + 8 ; m10 = c[i]
pabsw m6, m9 ; m6 = abs(m9)
pabsw m11, m10 ; m11 = abs(m10)
pcmpgtw m7, m6, m0
pcmpgtw m12, m11, m0
pmovmskb r6d, m7
pmovmskb r2d, m12
or r6, r2
jz .skip_iter
pcmpeqw m7, m7
paddsw m6, m1 ; m6 += round
paddsw m11, m1 ; m11 += round
pmulhw m14, m6, m2 ; m14 = m6*q>>16
pmulhw m13, m11, m2 ; m13 = m11*q>>16
psignw m14, m9 ; m14 = reinsert sign
psignw m13, m10 ; m13 = reinsert sign
STORE_TRAN_LOW 14, r3q, ncoeffq, 6, 11, 12
STORE_TRAN_LOW 13, r3q, ncoeffq + 8, 6, 11, 12
%ifidn %1, fp_32x32
pabsw m14, m14
pabsw m13, m13
%endif
pmullw m14, m3 ; r4[i] = r3[i] * q
pmullw m13, m3 ; r4[i] = r3[i] * q
%ifidn %1, fp_32x32
psrlw m14, 1
psrlw m13, 1
psignw m14, m9
psignw m13, m10
%endif
STORE_TRAN_LOW 14, r4q, ncoeffq, 6, 11, 12
STORE_TRAN_LOW 13, r4q, ncoeffq + 8, 6, 11, 12
pcmpeqw m14, m5 ; m14 = c[i] == 0
pcmpeqw m13, m5 ; m13 = c[i] == 0
mova m6, [ r5q+ncoeffq*2+ 0] ; m6 = scan[i]
mova m11, [ r5q+ncoeffq*2+16] ; m11 = scan[i]
psubw m6, m7 ; m6 = 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
pmaxsw m8, m13
add ncoeffq, mmsize
jl .ac_only_loop
jmp .accumulate_eob
.skip_iter:
STORE_ZERO_TRAN_LOW 5, r3q, ncoeffq
STORE_ZERO_TRAN_LOW 5, r3q, ncoeffq + 8
STORE_ZERO_TRAN_LOW 5, r4q, ncoeffq
STORE_ZERO_TRAN_LOW 5, r4q, ncoeffq + 8
add ncoeffq, mmsize
jl .ac_only_loop
.accumulate_eob:
; horizontally accumulate/max eobs and write into [eob] memory pointer
mov r2, eobmp
pshufd m7, m8, 0xe
pmaxsw m8, m7
pshuflw m7, m8, 0xe
pmaxsw m8, m7
pshuflw m7, m8, 0x1
pmaxsw m8, m7
pextrw r6, m8, 0
mov [r2], r6w
RET
%endmacro
INIT_XMM ssse3
QUANTIZE_FP fp, 7
QUANTIZE_FP fp_32x32, 7