ref: 5eca3c23c3d5526adcee5f7e02e95303958eadd9
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