9cfba09ac0
Added optimization of the 8 bit assembly quantizer routines. This makes these functions up to 100% faster, depending on encoding parameters. This patch maskes the encoder faster in both the high bitdepth and 8bit configurations. In the high bitdepth configuration, it effects profile 0 only. Based on my profiling using 1080p input the net gain is between 1-3% for the 8 bit config, and around 2.5-4.5% for the high bitdepth config, depending on target bitrate. The difference between the 8 bit and high bitdepth configurations for the same encoder run is reduced by 1% in all cases I have profiled. Change-Id: I86714a6b7364da20cd468cd784247009663a5140
545 lines
21 KiB
NASM
545 lines
21 KiB
NASM
;
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; Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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%include "third_party/x86inc/x86inc.asm"
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SECTION .text
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%macro QUANTIZE_FN 2
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cglobal quantize_%1, 0, %2, 15, coeff, ncoeff, skip, zbin, round, quant, \
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shift, qcoeff, dqcoeff, dequant, \
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eob, scan, iscan
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vzeroupper
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; If we can skip this block, then just zero the output
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cmp skipmp, 0
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jne .blank
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%ifnidn %1, b_32x32
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; Special case for ncoeff == 16, as it is frequent and we can save on
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; not setting up a loop.
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cmp ncoeffmp, 16
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jne .generic
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Special case of ncoeff == 16
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.single:
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movifnidn coeffq, coeffmp
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movifnidn zbinq, zbinmp
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mova m0, [zbinq] ; m0 = zbin
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; Get DC and first 15 AC coeffs - in this special case, that is all.
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%if CONFIG_VP9_HIGHBITDEPTH
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; coeff stored as 32bit numbers but we process them as 16 bit numbers
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mova m9, [coeffq]
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packssdw m9, [coeffq+16] ; m9 = c[i]
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mova m10, [coeffq+32]
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packssdw m10, [coeffq+48] ; m10 = c[i]
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%else
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mova m9, [coeffq] ; m9 = c[i]
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mova m10, [coeffq+16] ; m10 = c[i]
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%endif
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mov r0, eobmp ; Output pointer
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mov r1, qcoeffmp ; Output pointer
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mov r2, dqcoeffmp ; Output pointer
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pxor m5, m5 ; m5 = dedicated zero
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pcmpeqw m4, m4 ; All word lanes -1
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paddw m0, m4 ; m0 = zbin - 1
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pabsw m6, m9 ; m6 = abs(m9)
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pabsw m11, m10 ; m11 = abs(m10)
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pcmpgtw m7, m6, m0 ; m7 = c[i] >= zbin
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punpckhqdq m0, m0
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pcmpgtw m12, m11, m0 ; m12 = c[i] >= zbin
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; Check if all coeffs are less than zbin. If yes, we just write zeros
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; to the outputs and we are done.
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por m14, m7, m12
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ptest m14, m14
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jnz .single_nonzero
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%if CONFIG_VP9_HIGHBITDEPTH
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mova [r1 ], ymm5
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mova [r1+32], ymm5
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mova [r2 ], ymm5
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mova [r2+32], ymm5
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%else
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mova [r1], ymm5
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mova [r2], ymm5
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%endif
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mov [r0], word 0
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vzeroupper
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RET
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.single_nonzero:
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; Actual quantization of size 16 block - setup pointers, rounders, etc.
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movifnidn r4, roundmp
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movifnidn r5, quantmp
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mov r3, dequantmp
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mov r6, shiftmp
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mova m1, [r4] ; m1 = round
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mova m2, [r5] ; m2 = quant
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mova m3, [r3] ; m3 = dequant
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mova m4, [r6] ; m4 = shift
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mov r3, iscanmp
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DEFINE_ARGS eob, qcoeff, dqcoeff, iscan
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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paddsw m6, m1 ; m6 += round
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punpckhqdq m1, m1
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paddsw m11, m1 ; m11 += round
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pmulhw m8, m6, m2 ; m8 = m6*q>>16
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punpckhqdq m2, m2
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pmulhw m13, m11, m2 ; m13 = m11*q>>16
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paddw m8, m6 ; m8 += m6
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paddw m13, m11 ; m13 += m11
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pmulhw m8, m4 ; m8 = m8*qsh>>16
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punpckhqdq m4, m4
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pmulhw m13, m4 ; m13 = m13*qsh>>16
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psignw m8, m9 ; m8 = reinsert sign
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psignw m13, m10 ; m13 = reinsert sign
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pand m8, m7
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pand m13, m12
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%if CONFIG_VP9_HIGHBITDEPTH
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; Store 16bit numbers as 32bit numbers in array pointed to by qcoeff
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pcmpgtw m6, m5, m8
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punpckhwd m6, m8, m6
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pmovsxwd m11, m8
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mova [qcoeffq ], m11
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mova [qcoeffq+16], m6
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pcmpgtw m6, m5, m13
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punpckhwd m6, m13, m6
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pmovsxwd m11, m13
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mova [qcoeffq+32], m11
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mova [qcoeffq+48], m6
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%else
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mova [qcoeffq ], m8
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mova [qcoeffq+16], m13
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%endif
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pmullw m8, m3 ; dqc[i] = qc[i] * q
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punpckhqdq m3, m3
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pmullw m13, m3 ; dqc[i] = qc[i] * q
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%if CONFIG_VP9_HIGHBITDEPTH
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; Store 16bit numbers as 32bit numbers in array pointed to by qcoeff
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pcmpgtw m6, m5, m8
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punpckhwd m6, m8, m6
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pmovsxwd m11, m8
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mova [dqcoeffq ], m11
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mova [dqcoeffq+16], m6
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pcmpgtw m6, m5, m13
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punpckhwd m6, m13, m6
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pmovsxwd m11, m13
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mova [dqcoeffq+32], m11
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mova [dqcoeffq+48], m6
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%else
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mova [dqcoeffq ], m8
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mova [dqcoeffq+16], m13
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%endif
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mova m6, [iscanq] ; m6 = scan[i]
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mova m11, [iscanq+16] ; m11 = scan[i]
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pcmpeqw m8, m8, m5 ; m8 = c[i] == 0
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pcmpeqw m13, m13, m5 ; m13 = c[i] == 0
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psubw m6, m6, m7 ; m6 = scan[i] + 1
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psubw m11, m11, m12 ; m11 = scan[i] + 1
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pandn m8, m8, m6 ; m8 = max(eob)
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pandn m13, m13, m11 ; m13 = max(eob)
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pmaxsw m8, m8, m13
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; Horizontally accumulate/max eobs and write into [eob] memory pointer
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pshufd m7, m8, 0xe
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pmaxsw m8, m7
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pshuflw m7, m8, 0xe
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pmaxsw m8, m7
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pshuflw m7, m8, 0x1
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pmaxsw m8, m7
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movq rax, m8
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mov [eobq], ax
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vzeroupper
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RET
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Generic case of ncoeff != 16
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.generic:
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%endif ; %ifnidn %1, b_32x32
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DEFINE_ARGS coeff, ncoeff, skip, zbin, round, quant, shift, \
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qcoeff, dqcoeff, dequant, eob, scan, iscan
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; Actual quantization loop - setup pointers, rounders, etc.
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movifnidn coeffq, coeffmp
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movifnidn ncoeffq, ncoeffmp
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mov r2, dequantmp
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movifnidn zbinq, zbinmp
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movifnidn roundq, roundmp
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movifnidn quantq, quantmp
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mova m0, [zbinq] ; m0 = zbin
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mova m1, [roundq] ; m1 = round
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mova m2, [quantq] ; m2 = quant
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mova m3, [r2] ; m3 = dequant
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pcmpeqw m4, m4 ; All lanes -1
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%ifidn %1, b_32x32
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psubw m0, m4
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psubw m1, m4
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psrlw m0, 1 ; m0 = (m0 + 1) / 2
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psrlw m1, 1 ; m1 = (m1 + 1) / 2
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%endif
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paddw m0, m4 ; m0 = m0 + 1
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mov r2, shiftmp
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mov r3, qcoeffmp
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mova m4, [r2] ; m4 = shift
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mov r4, dqcoeffmp
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mov r5, iscanmp
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%ifidn %1, b_32x32
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psllw m4, 1
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%endif
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pxor m5, m5 ; m5 = dedicated zero
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DEFINE_ARGS coeff, ncoeff, d1, qcoeff, dqcoeff, iscan, d2, d3, d4, d5, eob
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%if CONFIG_VP9_HIGHBITDEPTH
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lea coeffq, [ coeffq+ncoeffq*4]
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lea qcoeffq, [ qcoeffq+ncoeffq*4]
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lea dqcoeffq, [dqcoeffq+ncoeffq*4]
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%else
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lea coeffq, [ coeffq+ncoeffq*2]
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lea qcoeffq, [ qcoeffq+ncoeffq*2]
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lea dqcoeffq, [dqcoeffq+ncoeffq*2]
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%endif
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lea iscanq, [ iscanq+ncoeffq*2]
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neg ncoeffq
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; get DC and first 15 AC coeffs
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%if CONFIG_VP9_HIGHBITDEPTH
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; coeff stored as 32bit numbers & require 16bit numbers
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mova m9, [coeffq+ncoeffq*4+ 0]
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packssdw m9, [coeffq+ncoeffq*4+16]
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mova m10, [coeffq+ncoeffq*4+32]
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packssdw m10, [coeffq+ncoeffq*4+48]
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%else
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mova m9, [coeffq+ncoeffq*2+ 0] ; m9 = c[i]
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mova m10, [coeffq+ncoeffq*2+16] ; m10 = c[i]
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%endif
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pabsw m6, m9 ; m6 = abs(m9)
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pabsw m11, m10 ; m11 = abs(m10)
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pcmpgtw m7, m6, m0 ; m7 = c[i] >= zbin
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punpckhqdq m0, m0
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pcmpgtw m12, m11, m0 ; m12 = c[i] >= zbin
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; Check if all coeffs are less than zbin. If yes, skip forward quickly.
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por m14, m7, m12
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ptest m14, m14
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jnz .first_nonzero
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%if CONFIG_VP9_HIGHBITDEPTH
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mova [qcoeffq+ncoeffq*4 ], ymm5
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mova [qcoeffq+ncoeffq*4+32], ymm5
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mova [dqcoeffq+ncoeffq*4 ], ymm5
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mova [dqcoeffq+ncoeffq*4+32], ymm5
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%else
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mova [qcoeffq+ncoeffq*2], ymm5
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mova [dqcoeffq+ncoeffq*2], ymm5
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%endif
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add ncoeffq, mmsize
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punpckhqdq m1, m1
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punpckhqdq m2, m2
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punpckhqdq m3, m3
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punpckhqdq m4, m4
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pxor m8, m8
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jmp .ac_only_loop
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.first_nonzero:
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paddsw m6, m1 ; m6 += round
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punpckhqdq m1, m1
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paddsw m11, m1 ; m11 += round
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pmulhw m8, m6, m2 ; m8 = m6*q>>16
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punpckhqdq m2, m2
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pmulhw m13, m11, m2 ; m13 = m11*q>>16
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paddw m8, m6 ; m8 += m6
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paddw m13, m11 ; m13 += m11
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pmulhw m8, m4 ; m8 = m8*qsh>>16
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punpckhqdq m4, m4
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pmulhw m13, m4 ; m13 = m13*qsh>>16
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psignw m8, m9 ; m8 = reinsert sign
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psignw m13, m10 ; m13 = reinsert sign
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pand m8, m7
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pand m13, m12
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%if CONFIG_VP9_HIGHBITDEPTH
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; store 16bit numbers as 32bit numbers in array pointed to by qcoeff
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pcmpgtw m6, m5, m8
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punpckhwd m6, m8, m6
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pmovsxwd m11, m8
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mova [qcoeffq+ncoeffq*4+ 0], m11
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mova [qcoeffq+ncoeffq*4+16], m6
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pcmpgtw m6, m5, m13
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punpckhwd m6, m13, m6
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pmovsxwd m11, m13
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mova [qcoeffq+ncoeffq*4+32], m11
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mova [qcoeffq+ncoeffq*4+48], m6
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%else
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mova [qcoeffq+ncoeffq*2+ 0], m8
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mova [qcoeffq+ncoeffq*2+16], m13
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%endif
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%ifidn %1, b_32x32
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pabsw m8, m8
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pabsw m13, m13
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%endif
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pmullw m8, m3 ; dqc[i] = qc[i] * q
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punpckhqdq m3, m3
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pmullw m13, m3 ; dqc[i] = qc[i] * q
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%ifidn %1, b_32x32
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psrlw m8, 1
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psrlw m13, 1
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psignw m8, m9
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psignw m13, m10
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%endif
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%if CONFIG_VP9_HIGHBITDEPTH
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; store 16bit numbers as 32bit numbers in array pointed to by qcoeff
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pcmpgtw m6, m5, m8
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punpckhwd m6, m8, m6
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pmovsxwd m11, m8
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mova [dqcoeffq+ncoeffq*4+ 0], m11
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mova [dqcoeffq+ncoeffq*4+16], m6
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pcmpgtw m6, m5, m13
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punpckhwd m6, m13, m6
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pmovsxwd m11, m13
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mova [dqcoeffq+ncoeffq*4+32], m11
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mova [dqcoeffq+ncoeffq*4+48], m6
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%else
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mova [dqcoeffq+ncoeffq*2+ 0], m8
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mova [dqcoeffq+ncoeffq*2+16], m13
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%endif
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pcmpeqw m8, m5 ; m8 = c[i] == 0
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pcmpeqw m13, m5 ; m13 = c[i] == 0
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mova m6, [iscanq+ncoeffq*2] ; m6 = scan[i]
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mova m11, [iscanq+ncoeffq*2+16] ; m11 = scan[i]
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psubw m6, m7 ; m6 = scan[i] + 1
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psubw m11, m12 ; m11 = scan[i] + 1
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pandn m8, m6 ; m8 = max(eob)
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pandn m13, m11 ; m13 = max(eob)
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pmaxsw m8, m13
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add ncoeffq, mmsize
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.ac_only_loop:
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%if CONFIG_VP9_HIGHBITDEPTH
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; pack coeff from 32bit to 16bit array
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mova m9, [coeffq+ncoeffq*4+ 0]
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packssdw m9, [coeffq+ncoeffq*4+16]
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mova m10, [coeffq+ncoeffq*4+32]
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packssdw m10, [coeffq+ncoeffq*4+48]
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%else
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mova m9, [coeffq+ncoeffq*2+ 0] ; m9 = c[i]
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mova m10, [coeffq+ncoeffq*2+16] ; m10 = c[i]
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%endif
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pabsw m6, m9 ; m6 = abs(m9)
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pabsw m11, m10 ; m11 = abs(m10)
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pcmpgtw m7, m6, m0 ; m7 = c[i] >= zbin
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pcmpgtw m12, m11, m0 ; m12 = c[i] >= zbin
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; Check if all coeffs are less than zbin. If yes, skip this itertion.
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; And just write zeros as the result would be.
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por m14, m7, m12
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ptest m14, m14
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jnz .rest_nonzero
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%if CONFIG_VP9_HIGHBITDEPTH
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mova [qcoeffq+ncoeffq*4+ 0], ymm5
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mova [qcoeffq+ncoeffq*4+32], ymm5
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mova [dqcoeffq+ncoeffq*4+ 0], ymm5
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mova [dqcoeffq+ncoeffq*4+32], ymm5
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%else
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mova [qcoeffq+ncoeffq*2+ 0], ymm5
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mova [dqcoeffq+ncoeffq*2+ 0], ymm5
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%endif
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add ncoeffq, mmsize
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jnz .ac_only_loop
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; Horizontally accumulate/max eobs and write into [eob] memory pointer
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mov r2, eobmp
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pshufd m7, m8, 0xe
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pmaxsw m8, m7
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pshuflw m7, m8, 0xe
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pmaxsw m8, m7
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pshuflw m7, m8, 0x1
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pmaxsw m8, m7
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movq rax, m8
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mov [r2], ax
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vzeroupper
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RET
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.rest_nonzero:
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paddsw m6, m1 ; m6 += round
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paddsw m11, m1 ; m11 += round
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pmulhw m14, m6, m2 ; m14 = m6*q>>16
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pmulhw m13, m11, m2 ; m13 = m11*q>>16
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paddw m14, m6 ; m14 += m6
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paddw m13, m11 ; m13 += m11
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pmulhw m14, m4 ; m14 = m14*qsh>>16
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pmulhw m13, m4 ; m13 = m13*qsh>>16
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psignw m14, m9 ; m14 = reinsert sign
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psignw m13, m10 ; m13 = reinsert sign
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pand m14, m7
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pand m13, m12
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%if CONFIG_VP9_HIGHBITDEPTH
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; store 16bit numbers as 32bit numbers in array pointed to by qcoeff
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pcmpgtw m6, m5, m14
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punpckhwd m6, m14, m6
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pmovsxwd m11, m14
|
|
mova [qcoeffq+ncoeffq*4+ 0], m11
|
|
mova [qcoeffq+ncoeffq*4+16], m6
|
|
pcmpgtw m6, m5, m13
|
|
punpckhwd m6, m13, m6
|
|
pmovsxwd m11, m13
|
|
mova [qcoeffq+ncoeffq*4+32], m11
|
|
mova [qcoeffq+ncoeffq*4+48], m6
|
|
%else
|
|
mova [qcoeffq+ncoeffq*2+ 0], m14
|
|
mova [qcoeffq+ncoeffq*2+16], m13
|
|
%endif
|
|
|
|
%ifidn %1, b_32x32
|
|
pabsw m14, m14
|
|
pabsw m13, m13
|
|
%endif
|
|
pmullw m14, m3 ; dqc[i] = qc[i] * q
|
|
pmullw m13, m3 ; dqc[i] = qc[i] * q
|
|
%ifidn %1, b_32x32
|
|
psrlw m14, 1
|
|
psrlw m13, 1
|
|
psignw m14, m9
|
|
psignw m13, m10
|
|
%endif
|
|
|
|
%if CONFIG_VP9_HIGHBITDEPTH
|
|
; store 16bit numbers as 32bit numbers in array pointed to by qcoeff
|
|
pcmpgtw m6, m5, m14
|
|
punpckhwd m6, m14, m6
|
|
pmovsxwd m11, m14
|
|
mova [dqcoeffq+ncoeffq*4+ 0], m11
|
|
mova [dqcoeffq+ncoeffq*4+16], m6
|
|
pcmpgtw m6, m5, m13
|
|
punpckhwd m6, m13, m6
|
|
pmovsxwd m11, m13
|
|
mova [dqcoeffq+ncoeffq*4+32], m11
|
|
mova [dqcoeffq+ncoeffq*4+48], m6
|
|
%else
|
|
mova [dqcoeffq+ncoeffq*2+ 0], m14
|
|
mova [dqcoeffq+ncoeffq*2+16], m13
|
|
%endif
|
|
|
|
pcmpeqw m14, m5 ; m14 = c[i] == 0
|
|
pcmpeqw m13, m5 ; m13 = c[i] == 0
|
|
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
|
|
pandn m14, m6 ; m14 = max(eob)
|
|
pandn m13, m11 ; m13 = max(eob)
|
|
pmaxsw m8, m14
|
|
pmaxsw m8, m13
|
|
add ncoeffq, mmsize
|
|
jnz .ac_only_loop
|
|
|
|
; 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
|
|
movq rax, m8
|
|
mov [r2], ax
|
|
vzeroupper
|
|
RET
|
|
|
|
; Skip-block, i.e. just write all zeroes
|
|
.blank:
|
|
|
|
DEFINE_ARGS coeff, ncoeff, skip, zbin, round, quant, shift, \
|
|
qcoeff, dqcoeff, dequant, eob, scan, iscan
|
|
|
|
mov r0, dqcoeffmp
|
|
movifnidn ncoeffq, ncoeffmp
|
|
mov r2, qcoeffmp
|
|
mov r3, eobmp
|
|
|
|
DEFINE_ARGS dqcoeff, ncoeff, qcoeff, eob
|
|
|
|
%if CONFIG_VP9_HIGHBITDEPTH
|
|
lea dqcoeffq, [dqcoeffq+ncoeffq*4]
|
|
lea qcoeffq, [ qcoeffq+ncoeffq*4]
|
|
%else
|
|
lea dqcoeffq, [dqcoeffq+ncoeffq*2]
|
|
lea qcoeffq, [ qcoeffq+ncoeffq*2]
|
|
%endif
|
|
|
|
neg ncoeffq
|
|
pxor m7, m7
|
|
|
|
.blank_loop:
|
|
%if CONFIG_VP9_HIGHBITDEPTH
|
|
mova [dqcoeffq+ncoeffq*4+ 0], ymm7
|
|
mova [dqcoeffq+ncoeffq*4+32], ymm7
|
|
mova [qcoeffq+ncoeffq*4+ 0], ymm7
|
|
mova [qcoeffq+ncoeffq*4+32], ymm7
|
|
%else
|
|
mova [dqcoeffq+ncoeffq*2+ 0], ymm7
|
|
mova [qcoeffq+ncoeffq*2+ 0], ymm7
|
|
%endif
|
|
add ncoeffq, mmsize
|
|
jl .blank_loop
|
|
|
|
mov [eobq], word 0
|
|
|
|
vzeroupper
|
|
RET
|
|
%endmacro
|
|
|
|
INIT_XMM avx
|
|
QUANTIZE_FN b, 7
|
|
QUANTIZE_FN b_32x32, 7
|
|
|
|
END
|