| ; |
| ; 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 |
