; ; Copyright (c) 2016, Alliance for Open Media. All rights reserved ; ; This source code is subject to the terms of the BSD 2 Clause License and ; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License ; was not distributed with this source code in the LICENSE file, you can ; obtain it at www.aomedia.org/license/software. If the Alliance for Open ; Media Patent License 1.0 was not distributed with this source code in the ; PATENTS file, you can obtain it at www.aomedia.org/license/patent. ; ; %define private_prefix av1 %include "third_party/x86inc/x86inc.asm" SECTION_RODATA pw_1: times 8 dw 1 SECTION .text %macro QUANTIZE_FP 2 cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \ shift, qcoeff, dqcoeff, dequant, \ eob, scan, iscan cmp dword skipm, 0 jne .blank ; actual quantize loop - setup pointers, rounders, etc. movifnidn coeffq, coeffmp movifnidn ncoeffq, ncoeffmp mov r2, dequantmp movifnidn zbinq, zbinmp 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 lea coeffq, [ coeffq+ncoeffq*2] lea r5q, [ r5q+ncoeffq*2] lea r3q, [ r3q+ncoeffq*2] lea r4q, [r4q+ncoeffq*2] neg ncoeffq ; get DC and first 15 AC coeffs mova m9, [ coeffq+ncoeffq*2+ 0] ; m9 = c[i] mova m10, [ coeffq+ncoeffq*2+16] ; 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 mova [r3q+ncoeffq*2+ 0], m8 mova [r3q+ncoeffq*2+16], m13 %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 mova [r4q+ncoeffq*2+ 0], m8 mova [r4q+ncoeffq*2+16], m13 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: mova m9, [ coeffq+ncoeffq*2+ 0] ; m9 = c[i] mova m10, [ coeffq+ncoeffq*2+16] ; 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 mova [r3q+ncoeffq*2+ 0], m14 mova [r3q+ncoeffq*2+16], m13 %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 mova [r4q+ncoeffq*2+ 0], m14 mova [r4q+ncoeffq*2+16], m13 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: mova [r3q+ncoeffq*2+ 0], m5 mova [r3q+ncoeffq*2+16], m5 mova [r4q+ncoeffq*2+ 0], m5 mova [r4q+ncoeffq*2+16], m5 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], r6 RET ; skip-block, i.e. just write all zeroes .blank: mov r0, dqcoeffmp movifnidn ncoeffq, ncoeffmp mov r2, qcoeffmp mov r3, eobmp lea r0q, [r0q+ncoeffq*2] lea r2q, [r2q+ncoeffq*2] neg ncoeffq pxor m7, m7 .blank_loop: mova [r0q+ncoeffq*2+ 0], m7 mova [r0q+ncoeffq*2+16], m7 mova [r2q+ncoeffq*2+ 0], m7 mova [r2q+ncoeffq*2+16], m7 add ncoeffq, mmsize jl .blank_loop mov word [r3q], 0 RET %endmacro INIT_XMM ssse3 QUANTIZE_FP fp, 7 QUANTIZE_FP fp_32x32, 7