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21c89f3a26
Align the second/third operands as they usually are.
Due to the wildly varying sizes of the written out operands
in aarch64 assembly, the column alignment is usually not as clear
as in arm assembly.
This is cherrypicked from libav commit
7995ebfad1.
Signed-off-by: Martin Storsjö <martin@martin.st>
1581 lines
62 KiB
ArmAsm
1581 lines
62 KiB
ArmAsm
/*
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* Copyright (c) 2016 Google Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/aarch64/asm.S"
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#include "neon.S"
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const itxfm4_coeffs, align=4
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.short 11585, 0, 6270, 15137
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iadst4_coeffs:
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.short 5283, 15212, 9929, 13377
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endconst
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const iadst8_coeffs, align=4
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.short 16305, 1606, 14449, 7723, 10394, 12665, 4756, 15679
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idct_coeffs:
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.short 11585, 0, 6270, 15137, 3196, 16069, 13623, 9102
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.short 1606, 16305, 12665, 10394, 7723, 14449, 15679, 4756
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.short 804, 16364, 12140, 11003, 7005, 14811, 15426, 5520
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.short 3981, 15893, 14053, 8423, 9760, 13160, 16207, 2404
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endconst
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const iadst16_coeffs, align=4
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.short 16364, 804, 15893, 3981, 11003, 12140, 8423, 14053
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.short 14811, 7005, 13160, 9760, 5520, 15426, 2404, 16207
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endconst
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// out1 = ((in1 + in2) * v0[0] + (1 << 13)) >> 14
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// out2 = ((in1 - in2) * v0[0] + (1 << 13)) >> 14
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// in/out are .8h registers; this can do with 4 temp registers, but is
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// more efficient if 6 temp registers are available.
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.macro dmbutterfly0 out1, out2, in1, in2, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, neg=0
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.if \neg > 0
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neg \tmp4\().4h, v0.4h
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.endif
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add \tmp1\().8h, \in1\().8h, \in2\().8h
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sub \tmp2\().8h, \in1\().8h, \in2\().8h
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.if \neg > 0
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smull \tmp3\().4s, \tmp1\().4h, \tmp4\().h[0]
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smull2 \tmp4\().4s, \tmp1\().8h, \tmp4\().h[0]
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.else
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smull \tmp3\().4s, \tmp1\().4h, v0.h[0]
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smull2 \tmp4\().4s, \tmp1\().8h, v0.h[0]
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.endif
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.ifb \tmp5
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rshrn \out1\().4h, \tmp3\().4s, #14
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rshrn2 \out1\().8h, \tmp4\().4s, #14
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smull \tmp3\().4s, \tmp2\().4h, v0.h[0]
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smull2 \tmp4\().4s, \tmp2\().8h, v0.h[0]
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rshrn \out2\().4h, \tmp3\().4s, #14
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rshrn2 \out2\().8h, \tmp4\().4s, #14
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.else
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smull \tmp5\().4s, \tmp2\().4h, v0.h[0]
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smull2 \tmp6\().4s, \tmp2\().8h, v0.h[0]
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rshrn \out1\().4h, \tmp3\().4s, #14
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rshrn2 \out1\().8h, \tmp4\().4s, #14
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rshrn \out2\().4h, \tmp5\().4s, #14
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rshrn2 \out2\().8h, \tmp6\().4s, #14
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.endif
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.endm
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// Same as dmbutterfly0 above, but treating the input in in2 as zero,
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// writing the same output into both out1 and out2.
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.macro dmbutterfly0_h out1, out2, in1, in2, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6
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smull \tmp1\().4s, \in1\().4h, v0.h[0]
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smull2 \tmp2\().4s, \in1\().8h, v0.h[0]
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rshrn \out1\().4h, \tmp1\().4s, #14
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rshrn2 \out1\().8h, \tmp2\().4s, #14
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rshrn \out2\().4h, \tmp1\().4s, #14
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rshrn2 \out2\().8h, \tmp2\().4s, #14
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.endm
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// out1,out2 = in1 * coef1 - in2 * coef2
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// out3,out4 = in1 * coef2 + in2 * coef1
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// out are 4 x .4s registers, in are 2 x .8h registers
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.macro dmbutterfly_l out1, out2, out3, out4, in1, in2, coef1, coef2
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smull \out1\().4s, \in1\().4h, \coef1
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smull2 \out2\().4s, \in1\().8h, \coef1
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smull \out3\().4s, \in1\().4h, \coef2
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smull2 \out4\().4s, \in1\().8h, \coef2
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smlsl \out1\().4s, \in2\().4h, \coef2
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smlsl2 \out2\().4s, \in2\().8h, \coef2
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smlal \out3\().4s, \in2\().4h, \coef1
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smlal2 \out4\().4s, \in2\().8h, \coef1
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.endm
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// inout1 = (inout1 * coef1 - inout2 * coef2 + (1 << 13)) >> 14
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// inout2 = (inout1 * coef2 + inout2 * coef1 + (1 << 13)) >> 14
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// inout are 2 x .8h registers
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.macro dmbutterfly inout1, inout2, coef1, coef2, tmp1, tmp2, tmp3, tmp4, neg=0
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dmbutterfly_l \tmp1, \tmp2, \tmp3, \tmp4, \inout1, \inout2, \coef1, \coef2
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.if \neg > 0
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neg \tmp3\().4s, \tmp3\().4s
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neg \tmp4\().4s, \tmp4\().4s
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.endif
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rshrn \inout1\().4h, \tmp1\().4s, #14
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rshrn2 \inout1\().8h, \tmp2\().4s, #14
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rshrn \inout2\().4h, \tmp3\().4s, #14
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rshrn2 \inout2\().8h, \tmp4\().4s, #14
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.endm
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// Same as dmbutterfly above, but treating the input in inout2 as zero
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.macro dmbutterfly_h1 inout1, inout2, coef1, coef2, tmp1, tmp2, tmp3, tmp4
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smull \tmp1\().4s, \inout1\().4h, \coef1
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smull2 \tmp2\().4s, \inout1\().8h, \coef1
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smull \tmp3\().4s, \inout1\().4h, \coef2
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smull2 \tmp4\().4s, \inout1\().8h, \coef2
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rshrn \inout1\().4h, \tmp1\().4s, #14
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rshrn2 \inout1\().8h, \tmp2\().4s, #14
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rshrn \inout2\().4h, \tmp3\().4s, #14
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rshrn2 \inout2\().8h, \tmp4\().4s, #14
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.endm
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// Same as dmbutterfly above, but treating the input in inout1 as zero
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.macro dmbutterfly_h2 inout1, inout2, coef1, coef2, tmp1, tmp2, tmp3, tmp4
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smull \tmp1\().4s, \inout2\().4h, \coef2
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smull2 \tmp2\().4s, \inout2\().8h, \coef2
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smull \tmp3\().4s, \inout2\().4h, \coef1
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smull2 \tmp4\().4s, \inout2\().8h, \coef1
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neg \tmp1\().4s, \tmp1\().4s
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neg \tmp2\().4s, \tmp2\().4s
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rshrn \inout2\().4h, \tmp3\().4s, #14
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rshrn2 \inout2\().8h, \tmp4\().4s, #14
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rshrn \inout1\().4h, \tmp1\().4s, #14
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rshrn2 \inout1\().8h, \tmp2\().4s, #14
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.endm
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.macro dsmull_h out1, out2, in, coef
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smull \out1\().4s, \in\().4h, \coef
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smull2 \out2\().4s, \in\().8h, \coef
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.endm
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.macro drshrn_h out, in1, in2, shift
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rshrn \out\().4h, \in1\().4s, \shift
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rshrn2 \out\().8h, \in2\().4s, \shift
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.endm
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// out1 = in1 + in2
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// out2 = in1 - in2
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.macro butterfly_8h out1, out2, in1, in2
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add \out1\().8h, \in1\().8h, \in2\().8h
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sub \out2\().8h, \in1\().8h, \in2\().8h
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.endm
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// out1 = in1 - in2
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// out2 = in1 + in2
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.macro butterfly_8h_r out1, out2, in1, in2
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sub \out1\().8h, \in1\().8h, \in2\().8h
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add \out2\().8h, \in1\().8h, \in2\().8h
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.endm
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// out1 = (in1,in2 + in3,in4 + (1 << 13)) >> 14
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// out2 = (in1,in2 - in3,in4 + (1 << 13)) >> 14
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// out are 2 x .8h registers, in are 4 x .4s registers
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.macro dbutterfly_n out1, out2, in1, in2, in3, in4, tmp1, tmp2, tmp3, tmp4
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add \tmp1\().4s, \in1\().4s, \in3\().4s
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add \tmp2\().4s, \in2\().4s, \in4\().4s
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sub \tmp3\().4s, \in1\().4s, \in3\().4s
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sub \tmp4\().4s, \in2\().4s, \in4\().4s
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rshrn \out1\().4h, \tmp1\().4s, #14
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rshrn2 \out1\().8h, \tmp2\().4s, #14
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rshrn \out2\().4h, \tmp3\().4s, #14
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rshrn2 \out2\().8h, \tmp4\().4s, #14
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.endm
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.macro iwht4 c0, c1, c2, c3
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add \c0\().4h, \c0\().4h, \c1\().4h
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sub v17.4h, \c2\().4h, \c3\().4h
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sub v16.4h, \c0\().4h, v17.4h
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sshr v16.4h, v16.4h, #1
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sub \c2\().4h, v16.4h, \c1\().4h
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sub \c1\().4h, v16.4h, \c3\().4h
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add \c3\().4h, v17.4h, \c2\().4h
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sub \c0\().4h, \c0\().4h, \c1\().4h
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.endm
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.macro idct4 c0, c1, c2, c3
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smull v22.4s, \c1\().4h, v0.h[3]
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smull v20.4s, \c1\().4h, v0.h[2]
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add v16.4h, \c0\().4h, \c2\().4h
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sub v17.4h, \c0\().4h, \c2\().4h
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smlal v22.4s, \c3\().4h, v0.h[2]
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smull v18.4s, v16.4h, v0.h[0]
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smull v19.4s, v17.4h, v0.h[0]
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smlsl v20.4s, \c3\().4h, v0.h[3]
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rshrn v22.4h, v22.4s, #14
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rshrn v18.4h, v18.4s, #14
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rshrn v19.4h, v19.4s, #14
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rshrn v20.4h, v20.4s, #14
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add \c0\().4h, v18.4h, v22.4h
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sub \c3\().4h, v18.4h, v22.4h
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add \c1\().4h, v19.4h, v20.4h
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sub \c2\().4h, v19.4h, v20.4h
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.endm
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.macro iadst4 c0, c1, c2, c3
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smull v16.4s, \c0\().4h, v0.h[4]
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smlal v16.4s, \c2\().4h, v0.h[5]
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smlal v16.4s, \c3\().4h, v0.h[6]
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smull v17.4s, \c0\().4h, v0.h[6]
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smlsl v17.4s, \c2\().4h, v0.h[4]
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sub \c0\().4h, \c0\().4h, \c2\().4h
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smlsl v17.4s, \c3\().4h, v0.h[5]
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add \c0\().4h, \c0\().4h, \c3\().4h
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smull v19.4s, \c1\().4h, v0.h[7]
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smull v18.4s, \c0\().4h, v0.h[7]
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add v20.4s, v16.4s, v19.4s
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add v21.4s, v17.4s, v19.4s
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rshrn \c0\().4h, v20.4s, #14
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add v16.4s, v16.4s, v17.4s
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rshrn \c1\().4h, v21.4s, #14
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sub v16.4s, v16.4s, v19.4s
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rshrn \c2\().4h, v18.4s, #14
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rshrn \c3\().4h, v16.4s, #14
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.endm
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// The public functions in this file have got the following signature:
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// void itxfm_add(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob);
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.macro itxfm_func4x4 txfm1, txfm2
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function ff_vp9_\txfm1\()_\txfm2\()_4x4_add_neon, export=1
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.ifc \txfm1,\txfm2
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.ifc \txfm1,idct
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movrel x4, itxfm4_coeffs
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ld1 {v0.4h}, [x4]
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.endif
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.ifc \txfm1,iadst
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movrel x4, iadst4_coeffs
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ld1 {v0.d}[1], [x4]
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.endif
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.else
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movrel x4, itxfm4_coeffs
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ld1 {v0.8h}, [x4]
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.endif
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movi v31.8h, #0
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.ifc \txfm1\()_\txfm2,idct_idct
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cmp w3, #1
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b.ne 1f
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// DC-only for idct/idct
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ld1 {v2.h}[0], [x2]
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smull v2.4s, v2.4h, v0.h[0]
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rshrn v2.4h, v2.4s, #14
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smull v2.4s, v2.4h, v0.h[0]
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rshrn v2.4h, v2.4s, #14
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st1 {v31.h}[0], [x2]
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dup v4.4h, v2.h[0]
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mov v5.16b, v4.16b
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mov v6.16b, v4.16b
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mov v7.16b, v4.16b
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b 2f
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.endif
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1:
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ld1 {v4.4h,v5.4h,v6.4h,v7.4h}, [x2]
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st1 {v31.8h}, [x2], #16
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.ifc \txfm1,iwht
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sshr v4.4h, v4.4h, #2
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sshr v5.4h, v5.4h, #2
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sshr v6.4h, v6.4h, #2
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sshr v7.4h, v7.4h, #2
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.endif
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\txfm1\()4 v4, v5, v6, v7
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st1 {v31.8h}, [x2], #16
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// Transpose 4x4 with 16 bit elements
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transpose_4x4H v4, v5, v6, v7, v16, v17, v18, v19
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\txfm2\()4 v4, v5, v6, v7
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2:
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ld1 {v0.s}[0], [x0], x1
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ld1 {v1.s}[0], [x0], x1
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.ifnc \txfm1,iwht
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srshr v4.4h, v4.4h, #4
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srshr v5.4h, v5.4h, #4
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srshr v6.4h, v6.4h, #4
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srshr v7.4h, v7.4h, #4
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.endif
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uaddw v4.8h, v4.8h, v0.8b
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uaddw v5.8h, v5.8h, v1.8b
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ld1 {v2.s}[0], [x0], x1
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ld1 {v3.s}[0], [x0], x1
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sqxtun v0.8b, v4.8h
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sqxtun v1.8b, v5.8h
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sub x0, x0, x1, lsl #2
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uaddw v6.8h, v6.8h, v2.8b
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uaddw v7.8h, v7.8h, v3.8b
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st1 {v0.s}[0], [x0], x1
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sqxtun v2.8b, v6.8h
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sqxtun v3.8b, v7.8h
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st1 {v1.s}[0], [x0], x1
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st1 {v2.s}[0], [x0], x1
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st1 {v3.s}[0], [x0], x1
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ret
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endfunc
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.endm
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itxfm_func4x4 idct, idct
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itxfm_func4x4 iadst, idct
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itxfm_func4x4 idct, iadst
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itxfm_func4x4 iadst, iadst
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itxfm_func4x4 iwht, iwht
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.macro idct8
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dmbutterfly0 v16, v20, v16, v20, v2, v3, v4, v5, v6, v7 // v16 = t0a, v20 = t1a
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dmbutterfly v18, v22, v0.h[2], v0.h[3], v2, v3, v4, v5 // v18 = t2a, v22 = t3a
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dmbutterfly v17, v23, v0.h[4], v0.h[5], v2, v3, v4, v5 // v17 = t4a, v23 = t7a
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dmbutterfly v21, v19, v0.h[6], v0.h[7], v2, v3, v4, v5 // v21 = t5a, v19 = t6a
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butterfly_8h v24, v25, v16, v22 // v24 = t0, v25 = t3
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butterfly_8h v28, v29, v17, v21 // v28 = t4, v29 = t5a
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butterfly_8h v30, v31, v23, v19 // v30 = t7, v31 = t6a
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butterfly_8h v26, v27, v20, v18 // v26 = t1, v27 = t2
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dmbutterfly0 v31, v29, v31, v29, v2, v3, v4, v5, v6, v7 // v31 = t6, v29 = t5
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butterfly_8h v16, v23, v24, v30 // v16 = out[0], v23 = out[7]
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butterfly_8h v17, v22, v26, v31 // v17 = out[1], v22 = out[6]
|
|
butterfly_8h v18, v21, v27, v29 // q13 = out[2], q10 = out[5]
|
|
butterfly_8h v19, v20, v25, v28 // v17 = out[3], q12 = out[4]
|
|
.endm
|
|
|
|
.macro iadst8
|
|
dmbutterfly_l v24, v25, v26, v27, v23, v16, v1.h[1], v1.h[0] // v24,v25 = t1a, v26,v27 = t0a
|
|
dmbutterfly_l v28, v29, v30, v31, v21, v18, v1.h[3], v1.h[2] // v28,v29 = t3a, v30,v31 = t2a
|
|
dmbutterfly_l v2, v3, v4, v5, v19, v20, v1.h[5], v1.h[4] // v2,v3 = t5a, v4,v5 = t4a
|
|
dmbutterfly_l v16, v18, v21, v23, v17, v22, v1.h[7], v1.h[6] // v16,v18 = t7a, v21,v23 = t6a
|
|
|
|
dbutterfly_n v4, v5, v26, v27, v4, v5, v6, v7, v26, v27 // v4 = t0, v5 = t4
|
|
dbutterfly_n v2, v3, v24, v25, v2, v3, v6, v7, v26, v27 // v2 = t1, v3 = t5
|
|
dbutterfly_n v24, v25, v30, v31, v21, v23, v6, v7, v26, v27 // v24 = t2, v25 = t6
|
|
dbutterfly_n v30, v31, v28, v29, v16, v18, v6, v7, v26, v27 // v30 = t3, v31 = t7
|
|
|
|
butterfly_8h v16, v6, v4, v24 // v16 = out[0], v6 = t2
|
|
butterfly_8h v23, v7, v2, v30 // v23 = -out[7], v7 = t3
|
|
neg v23.8h, v23.8h // v23 = out[7]
|
|
|
|
dmbutterfly0 v19, v20, v6, v7, v24, v26, v27, v28, v29, v30 // v19 = -out[3], v20 = out[4]
|
|
neg v19.8h, v19.8h // v19 = out[3]
|
|
|
|
dmbutterfly_l v26, v27, v28, v29, v5, v3, v0.h[2], v0.h[3] // v26,v27 = t5a, v28,v29 = t4a
|
|
dmbutterfly_l v2, v3, v4, v5, v31, v25, v0.h[3], v0.h[2] // v2,v3 = t6a, v4,v5 = t7a
|
|
|
|
dbutterfly_n v17, v30, v28, v29, v2, v3, v6, v7, v24, v25 // v17 = -out[1], v30 = t6
|
|
dbutterfly_n v22, v31, v26, v27, v4, v5, v6, v7, v24, v25 // v22 = out[6], v31 = t7
|
|
neg v17.8h, v17.8h // v17 = out[1]
|
|
|
|
dmbutterfly0 v18, v21, v30, v31, v2, v3, v4, v5, v6, v7 // v18 = out[2], v21 = -out[5]
|
|
neg v21.8h, v21.8h // v21 = out[5]
|
|
.endm
|
|
|
|
|
|
.macro itxfm_func8x8 txfm1, txfm2
|
|
function ff_vp9_\txfm1\()_\txfm2\()_8x8_add_neon, export=1
|
|
// The iadst also uses a few coefficients from
|
|
// idct, so those always need to be loaded.
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
movrel x4, idct_coeffs
|
|
.else
|
|
movrel x4, iadst8_coeffs
|
|
ld1 {v1.8h}, [x4], #16
|
|
.endif
|
|
ld1 {v0.8h}, [x4]
|
|
|
|
movi v2.8h, #0
|
|
movi v3.8h, #0
|
|
movi v4.8h, #0
|
|
movi v5.8h, #0
|
|
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp w3, #1
|
|
b.ne 1f
|
|
// DC-only for idct/idct
|
|
ld1 {v2.h}[0], [x2]
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
st1 {v3.h}[0], [x2]
|
|
dup v16.8h, v2.h[0]
|
|
mov v17.16b, v16.16b
|
|
mov v18.16b, v16.16b
|
|
mov v19.16b, v16.16b
|
|
mov v20.16b, v16.16b
|
|
mov v21.16b, v16.16b
|
|
mov v22.16b, v16.16b
|
|
mov v23.16b, v16.16b
|
|
b 2f
|
|
.endif
|
|
1:
|
|
ld1 {v16.8h,v17.8h,v18.8h,v19.8h}, [x2], #64
|
|
ld1 {v20.8h,v21.8h,v22.8h,v23.8h}, [x2], #64
|
|
sub x2, x2, #128
|
|
st1 {v2.8h,v3.8h,v4.8h,v5.8h}, [x2], #64
|
|
st1 {v2.8h,v3.8h,v4.8h,v5.8h}, [x2], #64
|
|
|
|
\txfm1\()8
|
|
|
|
// Transpose 8x8 with 16 bit elements
|
|
transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v24, v25
|
|
|
|
\txfm2\()8
|
|
2:
|
|
mov x3, x0
|
|
// Add into the destination
|
|
ld1 {v0.8b}, [x0], x1
|
|
srshr v16.8h, v16.8h, #5
|
|
ld1 {v1.8b}, [x0], x1
|
|
srshr v17.8h, v17.8h, #5
|
|
ld1 {v2.8b}, [x0], x1
|
|
srshr v18.8h, v18.8h, #5
|
|
uaddw v16.8h, v16.8h, v0.8b
|
|
ld1 {v3.8b}, [x0], x1
|
|
srshr v19.8h, v19.8h, #5
|
|
uaddw v17.8h, v17.8h, v1.8b
|
|
ld1 {v4.8b}, [x0], x1
|
|
srshr v20.8h, v20.8h, #5
|
|
uaddw v18.8h, v18.8h, v2.8b
|
|
sqxtun v0.8b, v16.8h
|
|
ld1 {v5.8b}, [x0], x1
|
|
srshr v21.8h, v21.8h, #5
|
|
uaddw v19.8h, v19.8h, v3.8b
|
|
sqxtun v1.8b, v17.8h
|
|
ld1 {v6.8b}, [x0], x1
|
|
srshr v22.8h, v22.8h, #5
|
|
uaddw v20.8h, v20.8h, v4.8b
|
|
sqxtun v2.8b, v18.8h
|
|
ld1 {v7.8b}, [x0], x1
|
|
srshr v23.8h, v23.8h, #5
|
|
uaddw v21.8h, v21.8h, v5.8b
|
|
sqxtun v3.8b, v19.8h
|
|
|
|
st1 {v0.8b}, [x3], x1
|
|
uaddw v22.8h, v22.8h, v6.8b
|
|
st1 {v1.8b}, [x3], x1
|
|
sqxtun v4.8b, v20.8h
|
|
st1 {v2.8b}, [x3], x1
|
|
uaddw v23.8h, v23.8h, v7.8b
|
|
st1 {v3.8b}, [x3], x1
|
|
sqxtun v5.8b, v21.8h
|
|
st1 {v4.8b}, [x3], x1
|
|
sqxtun v6.8b, v22.8h
|
|
st1 {v5.8b}, [x3], x1
|
|
sqxtun v7.8b, v23.8h
|
|
|
|
st1 {v6.8b}, [x3], x1
|
|
st1 {v7.8b}, [x3], x1
|
|
|
|
ret
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm_func8x8 idct, idct
|
|
itxfm_func8x8 iadst, idct
|
|
itxfm_func8x8 idct, iadst
|
|
itxfm_func8x8 iadst, iadst
|
|
|
|
|
|
function idct16x16_dc_add_neon
|
|
movrel x4, idct_coeffs
|
|
ld1 {v0.4h}, [x4]
|
|
|
|
movi v1.4h, #0
|
|
|
|
ld1 {v2.h}[0], [x2]
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
dup v2.8h, v2.h[0]
|
|
st1 {v1.h}[0], [x2]
|
|
|
|
srshr v2.8h, v2.8h, #6
|
|
|
|
mov x3, x0
|
|
mov x4, #16
|
|
1:
|
|
// Loop to add the constant from v2 into all 16x16 outputs
|
|
subs x4, x4, #2
|
|
ld1 {v3.16b}, [x0], x1
|
|
ld1 {v4.16b}, [x0], x1
|
|
uaddw v16.8h, v2.8h, v3.8b
|
|
uaddw2 v17.8h, v2.8h, v3.16b
|
|
uaddw v18.8h, v2.8h, v4.8b
|
|
uaddw2 v19.8h, v2.8h, v4.16b
|
|
sqxtun v3.8b, v16.8h
|
|
sqxtun2 v3.16b, v17.8h
|
|
sqxtun v4.8b, v18.8h
|
|
sqxtun2 v4.16b, v19.8h
|
|
st1 {v3.16b}, [x3], x1
|
|
st1 {v4.16b}, [x3], x1
|
|
b.ne 1b
|
|
|
|
ret
|
|
endfunc
|
|
|
|
.macro idct16_end
|
|
butterfly_8h v18, v7, v4, v7 // v18 = t0a, v7 = t7a
|
|
butterfly_8h v19, v22, v5, v22 // v19 = t1a, v22 = t6
|
|
butterfly_8h v4, v26, v20, v26 // v4 = t2a, v26 = t5
|
|
butterfly_8h v5, v6, v28, v6 // v5 = t3a, v6 = t4
|
|
butterfly_8h v20, v28, v16, v24 // v20 = t8a, v28 = t11a
|
|
butterfly_8h v24, v21, v23, v21 // v24 = t9, v21 = t10
|
|
butterfly_8h v23, v27, v25, v27 // v23 = t14, v27 = t13
|
|
butterfly_8h v25, v29, v29, v17 // v25 = t15a, v29 = t12a
|
|
|
|
dmbutterfly0 v2, v3, v27, v21, v2, v3, v16, v17, v30, v31 // v2 = t13a, v3 = t10a
|
|
dmbutterfly0 v28, v27, v29, v28, v21, v29, v16, v17, v30, v31 // v28 = t12, v27 = t11
|
|
|
|
butterfly_8h v16, v31, v18, v25 // v16 = out[0], v31 = out[15]
|
|
butterfly_8h v17, v30, v19, v23 // v17 = out[1], v30 = out[14]
|
|
butterfly_8h_r v25, v22, v22, v24 // v25 = out[9], v22 = out[6]
|
|
butterfly_8h v23, v24, v7, v20 // v23 = out[7], v24 = out[8]
|
|
butterfly_8h v18, v29, v4, v2 // v18 = out[2], v29 = out[13]
|
|
butterfly_8h v19, v28, v5, v28 // v19 = out[3], v28 = out[12]
|
|
butterfly_8h v20, v27, v6, v27 // v20 = out[4], v27 = out[11]
|
|
butterfly_8h v21, v26, v26, v3 // v21 = out[5], v26 = out[10]
|
|
ret
|
|
.endm
|
|
|
|
function idct16
|
|
dmbutterfly0 v16, v24, v16, v24, v2, v3, v4, v5, v6, v7 // v16 = t0a, v24 = t1a
|
|
dmbutterfly v20, v28, v0.h[2], v0.h[3], v2, v3, v4, v5 // v20 = t2a, v28 = t3a
|
|
dmbutterfly v18, v30, v0.h[4], v0.h[5], v2, v3, v4, v5 // v18 = t4a, v30 = t7a
|
|
dmbutterfly v26, v22, v0.h[6], v0.h[7], v2, v3, v4, v5 // v26 = t5a, v22 = t6a
|
|
dmbutterfly v17, v31, v1.h[0], v1.h[1], v2, v3, v4, v5 // v17 = t8a, v31 = t15a
|
|
dmbutterfly v25, v23, v1.h[2], v1.h[3], v2, v3, v4, v5 // v25 = t9a, v23 = t14a
|
|
dmbutterfly v21, v27, v1.h[4], v1.h[5], v2, v3, v4, v5 // v21 = t10a, v27 = t13a
|
|
dmbutterfly v29, v19, v1.h[6], v1.h[7], v2, v3, v4, v5 // v29 = t11a, v19 = t12a
|
|
|
|
butterfly_8h v4, v28, v16, v28 // v4 = t0, v28 = t3
|
|
butterfly_8h v5, v20, v24, v20 // v5 = t1, v20 = t2
|
|
butterfly_8h v6, v26, v18, v26 // v6 = t4, v26 = t5
|
|
butterfly_8h v7, v22, v30, v22 // v7 = t7, v22 = t6
|
|
butterfly_8h v16, v25, v17, v25 // v16 = t8, v25 = t9
|
|
butterfly_8h v24, v21, v29, v21 // v24 = t11, v21 = t10
|
|
butterfly_8h v17, v27, v19, v27 // v17 = t12, v27 = t13
|
|
butterfly_8h v29, v23, v31, v23 // v29 = t15, v23 = t14
|
|
|
|
dmbutterfly0 v22, v26, v22, v26, v2, v3, v18, v19, v30, v31 // v22 = t6a, v26 = t5a
|
|
dmbutterfly v23, v25, v0.h[2], v0.h[3], v18, v19, v30, v31 // v23 = t9a, v25 = t14a
|
|
dmbutterfly v27, v21, v0.h[2], v0.h[3], v18, v19, v30, v31, neg=1 // v27 = t13a, v21 = t10a
|
|
idct16_end
|
|
endfunc
|
|
|
|
function idct16_half
|
|
dmbutterfly0_h v16, v24, v16, v24, v2, v3, v4, v5, v6, v7 // v16 = t0a, v24 = t1a
|
|
dmbutterfly_h1 v20, v28, v0.h[2], v0.h[3], v2, v3, v4, v5 // v20 = t2a, v28 = t3a
|
|
dmbutterfly_h1 v18, v30, v0.h[4], v0.h[5], v2, v3, v4, v5 // v18 = t4a, v30 = t7a
|
|
dmbutterfly_h2 v26, v22, v0.h[6], v0.h[7], v2, v3, v4, v5 // v26 = t5a, v22 = t6a
|
|
dmbutterfly_h1 v17, v31, v1.h[0], v1.h[1], v2, v3, v4, v5 // v17 = t8a, v31 = t15a
|
|
dmbutterfly_h2 v25, v23, v1.h[2], v1.h[3], v2, v3, v4, v5 // v25 = t9a, v23 = t14a
|
|
dmbutterfly_h1 v21, v27, v1.h[4], v1.h[5], v2, v3, v4, v5 // v21 = t10a, v27 = t13a
|
|
dmbutterfly_h2 v29, v19, v1.h[6], v1.h[7], v2, v3, v4, v5 // v29 = t11a, v19 = t12a
|
|
|
|
butterfly_8h v4, v28, v16, v28 // v4 = t0, v28 = t3
|
|
butterfly_8h v5, v20, v24, v20 // v5 = t1, v20 = t2
|
|
butterfly_8h v6, v26, v18, v26 // v6 = t4, v26 = t5
|
|
butterfly_8h v7, v22, v30, v22 // v7 = t7, v22 = t6
|
|
butterfly_8h v16, v25, v17, v25 // v16 = t8, v25 = t9
|
|
butterfly_8h v24, v21, v29, v21 // v24 = t11, v21 = t10
|
|
butterfly_8h v17, v27, v19, v27 // v17 = t12, v27 = t13
|
|
butterfly_8h v29, v23, v31, v23 // v29 = t15, v23 = t14
|
|
|
|
dmbutterfly0 v22, v26, v22, v26, v2, v3, v18, v19, v30, v31 // v22 = t6a, v26 = t5a
|
|
dmbutterfly v23, v25, v0.h[2], v0.h[3], v18, v19, v30, v31 // v23 = t9a, v25 = t14a
|
|
dmbutterfly v27, v21, v0.h[2], v0.h[3], v18, v19, v30, v31, neg=1 // v27 = t13a, v21 = t10a
|
|
idct16_end
|
|
endfunc
|
|
|
|
function idct16_quarter
|
|
dsmull_h v24, v25, v19, v1.h[7]
|
|
dsmull_h v4, v5, v17, v1.h[0]
|
|
dsmull_h v7, v6, v18, v0.h[5]
|
|
dsmull_h v30, v31, v18, v0.h[4]
|
|
neg v24.4s, v24.4s
|
|
neg v25.4s, v25.4s
|
|
dsmull_h v29, v28, v17, v1.h[1]
|
|
dsmull_h v26, v27, v19, v1.h[6]
|
|
dsmull_h v22, v23, v16, v0.h[0]
|
|
drshrn_h v24, v24, v25, #14
|
|
drshrn_h v16, v4, v5, #14
|
|
drshrn_h v7, v7, v6, #14
|
|
drshrn_h v6, v30, v31, #14
|
|
drshrn_h v29, v29, v28, #14
|
|
drshrn_h v17, v26, v27, #14
|
|
drshrn_h v28, v22, v23, #14
|
|
|
|
dmbutterfly_l v20, v21, v22, v23, v17, v24, v0.h[2], v0.h[3]
|
|
dmbutterfly_l v18, v19, v30, v31, v29, v16, v0.h[2], v0.h[3]
|
|
neg v22.4s, v22.4s
|
|
neg v23.4s, v23.4s
|
|
drshrn_h v27, v20, v21, #14
|
|
drshrn_h v21, v22, v23, #14
|
|
drshrn_h v23, v18, v19, #14
|
|
drshrn_h v25, v30, v31, #14
|
|
mov v4.16b, v28.16b
|
|
mov v5.16b, v28.16b
|
|
dmbutterfly0 v22, v26, v7, v6, v18, v19, v30, v31
|
|
mov v20.16b, v28.16b
|
|
idct16_end
|
|
endfunc
|
|
|
|
function iadst16
|
|
ld1 {v0.8h,v1.8h}, [x11]
|
|
|
|
dmbutterfly_l v6, v7, v4, v5, v31, v16, v0.h[1], v0.h[0] // v6,v7 = t1, v4,v5 = t0
|
|
dmbutterfly_l v10, v11, v8, v9, v23, v24, v0.h[5], v0.h[4] // v10,v11 = t9, v8,v9 = t8
|
|
dbutterfly_n v31, v24, v6, v7, v10, v11, v12, v13, v10, v11 // v31 = t1a, v24 = t9a
|
|
dmbutterfly_l v14, v15, v12, v13, v29, v18, v0.h[3], v0.h[2] // v14,v15 = t3, v12,v13 = t2
|
|
dbutterfly_n v16, v23, v4, v5, v8, v9, v6, v7, v8, v9 // v16 = t0a, v23 = t8a
|
|
|
|
dmbutterfly_l v6, v7, v4, v5, v21, v26, v0.h[7], v0.h[6] // v6,v7 = t11, v4,v5 = t10
|
|
dbutterfly_n v29, v26, v14, v15, v6, v7, v8, v9, v6, v7 // v29 = t3a, v26 = t11a
|
|
dmbutterfly_l v10, v11, v8, v9, v27, v20, v1.h[1], v1.h[0] // v10,v11 = t5, v8,v9 = t4
|
|
dbutterfly_n v18, v21, v12, v13, v4, v5, v6, v7, v4, v5 // v18 = t2a, v21 = t10a
|
|
|
|
dmbutterfly_l v14, v15, v12, v13, v19, v28, v1.h[5], v1.h[4] // v14,v15 = t13, v12,v13 = t12
|
|
dbutterfly_n v20, v28, v10, v11, v14, v15, v4, v5, v14, v15 // v20 = t5a, v28 = t13a
|
|
dmbutterfly_l v6, v7, v4, v5, v25, v22, v1.h[3], v1.h[2] // v6,v7 = t7, v4,v5 = t6
|
|
dbutterfly_n v27, v19, v8, v9, v12, v13, v10, v11, v12, v13 // v27 = t4a, v19 = t12a
|
|
|
|
dmbutterfly_l v10, v11, v8, v9, v17, v30, v1.h[7], v1.h[6] // v10,v11 = t15, v8,v9 = t14
|
|
ld1 {v0.8h}, [x10]
|
|
dbutterfly_n v22, v30, v6, v7, v10, v11, v12, v13, v10, v11 // v22 = t7a, v30 = t15a
|
|
dmbutterfly_l v14, v15, v12, v13, v23, v24, v0.h[4], v0.h[5] // v14,v15 = t9, v12,v13 = t8
|
|
dbutterfly_n v25, v17, v4, v5, v8, v9, v6, v7, v8, v9 // v25 = t6a, v17 = t14a
|
|
|
|
dmbutterfly_l v4, v5, v6, v7, v28, v19, v0.h[5], v0.h[4] // v4,v5 = t12, v6,v7 = t13
|
|
dbutterfly_n v23, v19, v12, v13, v4, v5, v8, v9, v4, v5 // v23 = t8a, v19 = t12a
|
|
dmbutterfly_l v10, v11, v8, v9, v21, v26, v0.h[6], v0.h[7] // v10,v11 = t11, v8,v9 = t10
|
|
butterfly_8h_r v4, v27, v16, v27 // v4 = t4, v27 = t0
|
|
dbutterfly_n v24, v28, v14, v15, v6, v7, v12, v13, v6, v7 // v24 = t9a, v28 = t13a
|
|
|
|
dmbutterfly_l v12, v13, v14, v15, v30, v17, v0.h[7], v0.h[6] // v12,v13 = t14, v14,v15 = t15
|
|
butterfly_8h_r v5, v20, v31, v20 // v5 = t5, v20 = t1
|
|
dbutterfly_n v21, v17, v8, v9, v12, v13, v6, v7, v12, v13 // v21 = t10a, v17 = t14a
|
|
dbutterfly_n v26, v30, v10, v11, v14, v15, v8, v9, v14, v15 // v26 = t11a, v30 = t15a
|
|
|
|
butterfly_8h_r v6, v25, v18, v25 // v6 = t6, v25 = t2
|
|
butterfly_8h_r v7, v22, v29, v22 // v7 = t7, v22 = t3
|
|
|
|
dmbutterfly_l v10, v11, v8, v9, v19, v28, v0.h[2], v0.h[3] // v10,v11 = t13, v8,v9 = t12
|
|
dmbutterfly_l v12, v13, v14, v15, v30, v17, v0.h[3], v0.h[2] // v12,v13 = t14, v14,v15 = t15
|
|
|
|
dbutterfly_n v18, v30, v8, v9, v12, v13, v16, v17, v12, v13 // v18 = out[2], v30 = t14a
|
|
dbutterfly_n v29, v17, v10, v11, v14, v15, v12, v13, v14, v15 // v29 = -out[13], v17 = t15a
|
|
neg v29.8h, v29.8h // v29 = out[13]
|
|
|
|
dmbutterfly_l v10, v11, v8, v9, v4, v5, v0.h[2], v0.h[3] // v10,v11 = t5a, v8,v9 = t4a
|
|
dmbutterfly_l v12, v13, v14, v15, v7, v6, v0.h[3], v0.h[2] // v12,v13 = t6a, v14,v15 = t7a
|
|
|
|
butterfly_8h v2, v6, v27, v25 // v2 = out[0], v6 = t2a
|
|
butterfly_8h v3, v7, v23, v21 // v3 =-out[1], v7 = t10
|
|
|
|
dbutterfly_n v19, v31, v8, v9, v12, v13, v4, v5, v8, v9 // v19 = -out[3], v31 = t6
|
|
neg v19.8h, v19.8h // v19 = out[3]
|
|
dbutterfly_n v28, v16, v10, v11, v14, v15, v4, v5, v10, v11 // v28 = out[12], v16 = t7
|
|
|
|
butterfly_8h v5, v8, v20, v22 // v5 =-out[15],v8 = t3a
|
|
butterfly_8h v4, v9, v24, v26 // v4 = out[14],v9 = t11
|
|
|
|
dmbutterfly0 v23, v24, v6, v8, v10, v11, v12, v13, v14, v15, 1 // v23 = out[7], v24 = out[8]
|
|
dmbutterfly0 v21, v26, v30, v17, v10, v11, v12, v13, v14, v15, 1 // v21 = out[5], v26 = out[10]
|
|
dmbutterfly0 v20, v27, v16, v31, v10, v11, v12, v13, v14, v15 // v20 = out[4], v27 = out[11]
|
|
dmbutterfly0 v22, v25, v9, v7, v10, v11, v12, v13, v14, v15 // v22 = out[6], v25 = out[9]
|
|
|
|
neg v31.8h, v5.8h // v31 = out[15]
|
|
neg v17.8h, v3.8h // v17 = out[1]
|
|
|
|
mov v16.16b, v2.16b
|
|
mov v30.16b, v4.16b
|
|
ret
|
|
endfunc
|
|
|
|
// Helper macros; we can't use these expressions directly within
|
|
// e.g. .irp due to the extra concatenation \(). Therefore wrap
|
|
// them in macros to allow using .irp below.
|
|
.macro load i, src, inc
|
|
ld1 {v\i\().8h}, [\src], \inc
|
|
.endm
|
|
.macro store i, dst, inc
|
|
st1 {v\i\().8h}, [\dst], \inc
|
|
.endm
|
|
.macro movi_v i, size, imm
|
|
movi v\i\()\size, \imm
|
|
.endm
|
|
.macro load_clear i, src, inc
|
|
ld1 {v\i\().8h}, [\src]
|
|
st1 {v2.8h}, [\src], \inc
|
|
.endm
|
|
|
|
.macro load_add_store coef0, coef1, coef2, coef3, coef4, coef5, coef6, coef7, tmp1, tmp2
|
|
srshr \coef0, \coef0, #6
|
|
ld1 {v2.8b}, [x0], x1
|
|
srshr \coef1, \coef1, #6
|
|
ld1 {v3.8b}, [x3], x1
|
|
srshr \coef2, \coef2, #6
|
|
ld1 {v4.8b}, [x0], x1
|
|
srshr \coef3, \coef3, #6
|
|
uaddw \coef0, \coef0, v2.8b
|
|
ld1 {v5.8b}, [x3], x1
|
|
uaddw \coef1, \coef1, v3.8b
|
|
srshr \coef4, \coef4, #6
|
|
ld1 {v6.8b}, [x0], x1
|
|
srshr \coef5, \coef5, #6
|
|
ld1 {v7.8b}, [x3], x1
|
|
sqxtun v2.8b, \coef0
|
|
srshr \coef6, \coef6, #6
|
|
sqxtun v3.8b, \coef1
|
|
srshr \coef7, \coef7, #6
|
|
uaddw \coef2, \coef2, v4.8b
|
|
ld1 {\tmp1}, [x0], x1
|
|
uaddw \coef3, \coef3, v5.8b
|
|
ld1 {\tmp2}, [x3], x1
|
|
sqxtun v4.8b, \coef2
|
|
sub x0, x0, x1, lsl #2
|
|
sub x3, x3, x1, lsl #2
|
|
sqxtun v5.8b, \coef3
|
|
uaddw \coef4, \coef4, v6.8b
|
|
st1 {v2.8b}, [x0], x1
|
|
uaddw \coef5, \coef5, v7.8b
|
|
st1 {v3.8b}, [x3], x1
|
|
sqxtun v6.8b, \coef4
|
|
st1 {v4.8b}, [x0], x1
|
|
sqxtun v7.8b, \coef5
|
|
st1 {v5.8b}, [x3], x1
|
|
uaddw \coef6, \coef6, \tmp1
|
|
st1 {v6.8b}, [x0], x1
|
|
uaddw \coef7, \coef7, \tmp2
|
|
st1 {v7.8b}, [x3], x1
|
|
sqxtun \tmp1, \coef6
|
|
sqxtun \tmp2, \coef7
|
|
st1 {\tmp1}, [x0], x1
|
|
st1 {\tmp2}, [x3], x1
|
|
.endm
|
|
|
|
// Read a vertical 8x16 slice out of a 16x16 matrix, do a transform on it,
|
|
// transpose into a horizontal 16x8 slice and store.
|
|
// x0 = dst (temp buffer)
|
|
// x1 = slice offset
|
|
// x2 = src
|
|
// x9 = input stride
|
|
.macro itxfm16_1d_funcs txfm
|
|
function \txfm\()16_1d_8x16_pass1_neon
|
|
mov x14, x30
|
|
|
|
movi v2.8h, #0
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
|
|
bl \txfm\()16
|
|
|
|
// Do two 8x8 transposes. Originally, v16-v31 contain the
|
|
// 16 rows. Afterwards, v16-v23 and v24-v31 contain the two
|
|
// transposed 8x8 blocks.
|
|
transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
|
|
transpose_8x8H v24, v25, v26, v27, v28, v29, v30, v31, v2, v3
|
|
|
|
// Store the transposed 8x8 blocks horizontally.
|
|
cmp x1, #8
|
|
b.eq 1f
|
|
.irp i, 16, 24, 17, 25, 18, 26, 19, 27, 20, 28, 21, 29, 22, 30, 23, 31
|
|
store \i, x0, #16
|
|
.endr
|
|
br x14
|
|
1:
|
|
// Special case: For the last input column (x1 == 8),
|
|
// which would be stored as the last row in the temp buffer,
|
|
// don't store the first 8x8 block, but keep it in registers
|
|
// for the first slice of the second pass (where it is the
|
|
// last 8x8 block).
|
|
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
|
|
add x0, x0, #16
|
|
store \i, x0, #16
|
|
.endr
|
|
mov v24.16b, v16.16b
|
|
mov v25.16b, v17.16b
|
|
mov v26.16b, v18.16b
|
|
mov v27.16b, v19.16b
|
|
mov v28.16b, v20.16b
|
|
mov v29.16b, v21.16b
|
|
mov v30.16b, v22.16b
|
|
mov v31.16b, v23.16b
|
|
br x14
|
|
endfunc
|
|
|
|
// Read a vertical 8x16 slice out of a 16x16 matrix, do a transform on it,
|
|
// load the destination pixels (from a similar 8x16 slice), add and store back.
|
|
// x0 = dst
|
|
// x1 = dst stride
|
|
// x2 = src (temp buffer)
|
|
// x3 = slice offset
|
|
// x9 = temp buffer stride
|
|
function \txfm\()16_1d_8x16_pass2_neon
|
|
mov x14, x30
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load \i, x2, x9
|
|
.endr
|
|
cbz x3, 1f
|
|
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load \i, x2, x9
|
|
.endr
|
|
1:
|
|
|
|
add x3, x0, x1
|
|
lsl x1, x1, #1
|
|
bl \txfm\()16
|
|
|
|
load_add_store v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v16.8b, v17.8b
|
|
load_add_store v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h, v16.8b, v17.8b
|
|
|
|
br x14
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm16_1d_funcs idct
|
|
itxfm16_1d_funcs iadst
|
|
|
|
.macro itxfm_func16x16 txfm1, txfm2
|
|
function ff_vp9_\txfm1\()_\txfm2\()_16x16_add_neon, export=1
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp w3, #1
|
|
b.eq idct16x16_dc_add_neon
|
|
.endif
|
|
mov x15, x30
|
|
// iadst16 requires clobbering v8-v15, but idct16 doesn't need to.
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
stp d14, d15, [sp, #-0x10]!
|
|
stp d12, d13, [sp, #-0x10]!
|
|
stp d10, d11, [sp, #-0x10]!
|
|
stp d8, d9, [sp, #-0x10]!
|
|
.endif
|
|
|
|
sub sp, sp, #512
|
|
|
|
mov x4, x0
|
|
mov x5, x1
|
|
mov x6, x2
|
|
|
|
movrel x10, idct_coeffs
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
movrel x11, iadst16_coeffs
|
|
.endif
|
|
.ifc \txfm1,idct
|
|
ld1 {v0.8h,v1.8h}, [x10]
|
|
.endif
|
|
mov x9, #32
|
|
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp w3, #10
|
|
b.le idct16x16_quarter_add_neon
|
|
cmp w3, #38
|
|
b.le idct16x16_half_add_neon
|
|
.endif
|
|
|
|
.irp i, 0, 8
|
|
add x0, sp, #(\i*32)
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
.if \i == 8
|
|
cmp w3, #38
|
|
b.le 1f
|
|
.endif
|
|
.endif
|
|
mov x1, #\i
|
|
add x2, x6, #(\i*2)
|
|
bl \txfm1\()16_1d_8x16_pass1_neon
|
|
.endr
|
|
.ifc \txfm1\()_\txfm2,iadst_idct
|
|
ld1 {v0.8h,v1.8h}, [x10]
|
|
.endif
|
|
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
b 3f
|
|
1:
|
|
// Set v24-v31 to zero, for the in-register passthrough of
|
|
// coefficients to pass 2. Since we only do two slices, this can
|
|
// only ever happen for the second slice. So we only need to store
|
|
// zeros to the temp buffer for the second half of the buffer.
|
|
// Move x0 to the second half, and use x9 == 32 as increment.
|
|
add x0, x0, #16
|
|
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
|
|
movi_v \i, .16b, #0
|
|
st1 {v24.8h}, [x0], x9
|
|
.endr
|
|
3:
|
|
.endif
|
|
|
|
.irp i, 0, 8
|
|
add x0, x4, #(\i)
|
|
mov x1, x5
|
|
add x2, sp, #(\i*2)
|
|
mov x3, #\i
|
|
bl \txfm2\()16_1d_8x16_pass2_neon
|
|
.endr
|
|
|
|
add sp, sp, #512
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
ldp d8, d9, [sp], 0x10
|
|
ldp d10, d11, [sp], 0x10
|
|
ldp d12, d13, [sp], 0x10
|
|
ldp d14, d15, [sp], 0x10
|
|
.endif
|
|
br x15
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm_func16x16 idct, idct
|
|
itxfm_func16x16 iadst, idct
|
|
itxfm_func16x16 idct, iadst
|
|
itxfm_func16x16 iadst, iadst
|
|
|
|
function idct16_1d_8x16_pass1_quarter_neon
|
|
mov x14, x30
|
|
movi v2.8h, #0
|
|
.irp i, 16, 17, 18, 19
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
|
|
bl idct16_quarter
|
|
|
|
// Do two 8x8 transposes. Originally, v16-v31 contain the
|
|
// 16 rows. Afterwards, v16-v23 and v24-v31 contain the two
|
|
// transposed 8x8 blocks.
|
|
transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
|
|
transpose_8x8H v24, v25, v26, v27, v28, v29, v30, v31, v2, v3
|
|
|
|
// Store the transposed 8x8 blocks horizontally.
|
|
// The first 8x8 block is kept in registers for the second pass,
|
|
// store the rest in the temp buffer.
|
|
// Since only a 4x4 part of the input was nonzero, this means that
|
|
// only 4 rows are nonzero after transposing, and the second pass
|
|
// only reads the topmost 4 rows. Therefore only store the topmost
|
|
// 4 rows.
|
|
add x0, x0, #16
|
|
.irp i, 24, 25, 26, 27
|
|
store \i, x0, x9
|
|
.endr
|
|
br x14
|
|
endfunc
|
|
|
|
function idct16_1d_8x16_pass2_quarter_neon
|
|
mov x14, x30
|
|
cbz x3, 1f
|
|
.irp i, 16, 17, 18, 19
|
|
load \i, x2, x9
|
|
.endr
|
|
1:
|
|
|
|
add x3, x0, x1
|
|
lsl x1, x1, #1
|
|
bl idct16_quarter
|
|
|
|
load_add_store v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v16.8b, v17.8b
|
|
load_add_store v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h, v16.8b, v17.8b
|
|
|
|
br x14
|
|
endfunc
|
|
|
|
function idct16_1d_8x16_pass1_half_neon
|
|
mov x14, x30
|
|
movi v2.8h, #0
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
|
|
bl idct16_half
|
|
|
|
// Do two 8x8 transposes. Originally, v16-v31 contain the
|
|
// 16 rows. Afterwards, v16-v23 and v24-v31 contain the two
|
|
// transposed 8x8 blocks.
|
|
transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
|
|
transpose_8x8H v24, v25, v26, v27, v28, v29, v30, v31, v2, v3
|
|
|
|
// Store the transposed 8x8 blocks horizontally.
|
|
// The first 8x8 block is kept in registers for the second pass,
|
|
// store the rest in the temp buffer.
|
|
add x0, x0, #16
|
|
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
|
|
store \i, x0, x9
|
|
.endr
|
|
br x14
|
|
endfunc
|
|
|
|
function idct16_1d_8x16_pass2_half_neon
|
|
mov x14, x30
|
|
cbz x3, 1f
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load \i, x2, x9
|
|
.endr
|
|
1:
|
|
|
|
add x3, x0, x1
|
|
lsl x1, x1, #1
|
|
bl idct16_half
|
|
|
|
load_add_store v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v16.8b, v17.8b
|
|
load_add_store v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h, v16.8b, v17.8b
|
|
|
|
br x14
|
|
endfunc
|
|
|
|
.macro idct16_partial size
|
|
function idct16x16_\size\()_add_neon
|
|
add x0, sp, #(0*32)
|
|
add x2, x6, #(0*2)
|
|
bl idct16_1d_8x16_pass1_\size\()_neon
|
|
.irp i, 0, 8
|
|
add x0, x4, #(\i)
|
|
mov x1, x5
|
|
add x2, sp, #(\i*2)
|
|
mov x3, #\i
|
|
bl idct16_1d_8x16_pass2_\size\()_neon
|
|
.endr
|
|
|
|
add sp, sp, #512
|
|
br x15
|
|
endfunc
|
|
.endm
|
|
|
|
idct16_partial quarter
|
|
idct16_partial half
|
|
|
|
function idct32x32_dc_add_neon
|
|
movrel x4, idct_coeffs
|
|
ld1 {v0.4h}, [x4]
|
|
|
|
movi v1.4h, #0
|
|
|
|
ld1 {v2.h}[0], [x2]
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
smull v2.4s, v2.4h, v0.h[0]
|
|
rshrn v2.4h, v2.4s, #14
|
|
dup v2.8h, v2.h[0]
|
|
st1 {v1.h}[0], [x2]
|
|
|
|
srshr v0.8h, v2.8h, #6
|
|
|
|
mov x3, x0
|
|
mov x4, #32
|
|
1:
|
|
// Loop to add the constant v0 into all 32x32 outputs
|
|
subs x4, x4, #2
|
|
ld1 {v1.16b,v2.16b}, [x0], x1
|
|
uaddw v16.8h, v0.8h, v1.8b
|
|
uaddw2 v17.8h, v0.8h, v1.16b
|
|
ld1 {v3.16b,v4.16b}, [x0], x1
|
|
uaddw v18.8h, v0.8h, v2.8b
|
|
uaddw2 v19.8h, v0.8h, v2.16b
|
|
uaddw v20.8h, v0.8h, v3.8b
|
|
uaddw2 v21.8h, v0.8h, v3.16b
|
|
uaddw v22.8h, v0.8h, v4.8b
|
|
uaddw2 v23.8h, v0.8h, v4.16b
|
|
sqxtun v1.8b, v16.8h
|
|
sqxtun2 v1.16b, v17.8h
|
|
sqxtun v2.8b, v18.8h
|
|
sqxtun2 v2.16b, v19.8h
|
|
sqxtun v3.8b, v20.8h
|
|
sqxtun2 v3.16b, v21.8h
|
|
st1 {v1.16b,v2.16b}, [x3], x1
|
|
sqxtun v4.8b, v22.8h
|
|
sqxtun2 v4.16b, v23.8h
|
|
st1 {v3.16b,v4.16b}, [x3], x1
|
|
b.ne 1b
|
|
|
|
ret
|
|
endfunc
|
|
|
|
.macro idct32_end
|
|
butterfly_8h v16, v5, v4, v5 // v16 = t16a, v5 = t19a
|
|
butterfly_8h v17, v20, v23, v20 // v17 = t17, v20 = t18
|
|
butterfly_8h v18, v6, v7, v6 // v18 = t23a, v6 = t20a
|
|
butterfly_8h v19, v21, v22, v21 // v19 = t22, v21 = t21
|
|
butterfly_8h v4, v28, v28, v30 // v4 = t24a, v28 = t27a
|
|
butterfly_8h v23, v26, v25, v26 // v23 = t25, v26 = t26
|
|
butterfly_8h v7, v3, v29, v31 // v7 = t31a, v3 = t28a
|
|
butterfly_8h v22, v27, v24, v27 // v22 = t30, v27 = t29
|
|
|
|
dmbutterfly v27, v20, v0.h[2], v0.h[3], v24, v25, v30, v31 // v27 = t18a, v20 = t29a
|
|
dmbutterfly v3, v5, v0.h[2], v0.h[3], v24, v25, v30, v31 // v3 = t19, v5 = t28
|
|
dmbutterfly v28, v6, v0.h[2], v0.h[3], v24, v25, v30, v31, neg=1 // v28 = t27, v6 = t20
|
|
dmbutterfly v26, v21, v0.h[2], v0.h[3], v24, v25, v30, v31, neg=1 // v26 = t26a, v21 = t21a
|
|
|
|
butterfly_8h v31, v24, v7, v4 // v31 = t31, v24 = t24
|
|
butterfly_8h v30, v25, v22, v23 // v30 = t30a, v25 = t25a
|
|
butterfly_8h_r v23, v16, v16, v18 // v23 = t23, v16 = t16
|
|
butterfly_8h_r v22, v17, v17, v19 // v22 = t22a, v17 = t17a
|
|
butterfly_8h v18, v21, v27, v21 // v18 = t18, v21 = t21
|
|
butterfly_8h_r v27, v28, v5, v28 // v27 = t27a, v28 = t28a
|
|
butterfly_8h v29, v26, v20, v26 // v29 = t29, v26 = t26
|
|
butterfly_8h v19, v20, v3, v6 // v19 = t19a, v20 = t20
|
|
|
|
dmbutterfly0 v27, v20, v27, v20, v2, v3, v4, v5, v6, v7 // v27 = t27, v20 = t20
|
|
dmbutterfly0 v26, v21, v26, v21, v2, v3, v4, v5, v6, v7 // v26 = t26a, v21 = t21a
|
|
dmbutterfly0 v25, v22, v25, v22, v2, v3, v4, v5, v6, v7 // v25 = t25, v22 = t22
|
|
dmbutterfly0 v24, v23, v24, v23, v2, v3, v4, v5, v6, v7 // v24 = t24a, v23 = t23a
|
|
ret
|
|
.endm
|
|
|
|
function idct32_odd
|
|
dmbutterfly v16, v31, v8.h[0], v8.h[1], v4, v5, v6, v7 // v16 = t16a, v31 = t31a
|
|
dmbutterfly v24, v23, v8.h[2], v8.h[3], v4, v5, v6, v7 // v24 = t17a, v23 = t30a
|
|
dmbutterfly v20, v27, v8.h[4], v8.h[5], v4, v5, v6, v7 // v20 = t18a, v27 = t29a
|
|
dmbutterfly v28, v19, v8.h[6], v8.h[7], v4, v5, v6, v7 // v28 = t19a, v19 = t28a
|
|
dmbutterfly v18, v29, v9.h[0], v9.h[1], v4, v5, v6, v7 // v18 = t20a, v29 = t27a
|
|
dmbutterfly v26, v21, v9.h[2], v9.h[3], v4, v5, v6, v7 // v26 = t21a, v21 = t26a
|
|
dmbutterfly v22, v25, v9.h[4], v9.h[5], v4, v5, v6, v7 // v22 = t22a, v25 = t25a
|
|
dmbutterfly v30, v17, v9.h[6], v9.h[7], v4, v5, v6, v7 // v30 = t23a, v17 = t24a
|
|
|
|
butterfly_8h v4, v24, v16, v24 // v4 = t16, v24 = t17
|
|
butterfly_8h v5, v20, v28, v20 // v5 = t19, v20 = t18
|
|
butterfly_8h v6, v26, v18, v26 // v6 = t20, v26 = t21
|
|
butterfly_8h v7, v22, v30, v22 // v7 = t23, v22 = t22
|
|
butterfly_8h v28, v25, v17, v25 // v28 = t24, v25 = t25
|
|
butterfly_8h v30, v21, v29, v21 // v30 = t27, v21 = t26
|
|
butterfly_8h v29, v23, v31, v23 // v29 = t31, v23 = t30
|
|
butterfly_8h v31, v27, v19, v27 // v31 = t28, v27 = t29
|
|
|
|
dmbutterfly v23, v24, v0.h[4], v0.h[5], v16, v17, v18, v19 // v23 = t17a, v24 = t30a
|
|
dmbutterfly v27, v20, v0.h[4], v0.h[5], v16, v17, v18, v19, neg=1 // v27 = t29a, v20 = t18a
|
|
dmbutterfly v21, v26, v0.h[6], v0.h[7], v16, v17, v18, v19 // v21 = t21a, v26 = t26a
|
|
dmbutterfly v25, v22, v0.h[6], v0.h[7], v16, v17, v18, v19, neg=1 // v25 = t25a, v22 = t22a
|
|
idct32_end
|
|
endfunc
|
|
|
|
function idct32_odd_half
|
|
dmbutterfly_h1 v16, v31, v8.h[0], v8.h[1], v4, v5, v6, v7 // v16 = t16a, v31 = t31a
|
|
dmbutterfly_h2 v24, v23, v8.h[2], v8.h[3], v4, v5, v6, v7 // v24 = t17a, v23 = t30a
|
|
dmbutterfly_h1 v20, v27, v8.h[4], v8.h[5], v4, v5, v6, v7 // v20 = t18a, v27 = t29a
|
|
dmbutterfly_h2 v28, v19, v8.h[6], v8.h[7], v4, v5, v6, v7 // v28 = t19a, v19 = t28a
|
|
dmbutterfly_h1 v18, v29, v9.h[0], v9.h[1], v4, v5, v6, v7 // v18 = t20a, v29 = t27a
|
|
dmbutterfly_h2 v26, v21, v9.h[2], v9.h[3], v4, v5, v6, v7 // v26 = t21a, v21 = t26a
|
|
dmbutterfly_h1 v22, v25, v9.h[4], v9.h[5], v4, v5, v6, v7 // v22 = t22a, v25 = t25a
|
|
dmbutterfly_h2 v30, v17, v9.h[6], v9.h[7], v4, v5, v6, v7 // v30 = t23a, v17 = t24a
|
|
|
|
butterfly_8h v4, v24, v16, v24 // v4 = t16, v24 = t17
|
|
butterfly_8h v5, v20, v28, v20 // v5 = t19, v20 = t18
|
|
butterfly_8h v6, v26, v18, v26 // v6 = t20, v26 = t21
|
|
butterfly_8h v7, v22, v30, v22 // v7 = t23, v22 = t22
|
|
butterfly_8h v28, v25, v17, v25 // v28 = t24, v25 = t25
|
|
butterfly_8h v30, v21, v29, v21 // v30 = t27, v21 = t26
|
|
butterfly_8h v29, v23, v31, v23 // v29 = t31, v23 = t30
|
|
butterfly_8h v31, v27, v19, v27 // v31 = t28, v27 = t29
|
|
|
|
dmbutterfly v23, v24, v0.h[4], v0.h[5], v16, v17, v18, v19 // v23 = t17a, v24 = t30a
|
|
dmbutterfly v27, v20, v0.h[4], v0.h[5], v16, v17, v18, v19, neg=1 // v27 = t29a, v20 = t18a
|
|
dmbutterfly v21, v26, v0.h[6], v0.h[7], v16, v17, v18, v19 // v21 = t21a, v26 = t26a
|
|
dmbutterfly v25, v22, v0.h[6], v0.h[7], v16, v17, v18, v19, neg=1 // v25 = t25a, v22 = t22a
|
|
idct32_end
|
|
endfunc
|
|
|
|
function idct32_odd_quarter
|
|
dsmull_h v4, v5, v16, v8.h[0]
|
|
dsmull_h v28, v29, v19, v8.h[7]
|
|
dsmull_h v30, v31, v16, v8.h[1]
|
|
dsmull_h v22, v23, v17, v9.h[6]
|
|
dsmull_h v7, v6, v17, v9.h[7]
|
|
dsmull_h v26, v27, v19, v8.h[6]
|
|
dsmull_h v20, v21, v18, v9.h[0]
|
|
dsmull_h v24, v25, v18, v9.h[1]
|
|
|
|
neg v28.4s, v28.4s
|
|
neg v29.4s, v29.4s
|
|
neg v7.4s, v7.4s
|
|
neg v6.4s, v6.4s
|
|
|
|
drshrn_h v4, v4, v5, #14
|
|
drshrn_h v5, v28, v29, #14
|
|
drshrn_h v29, v30, v31, #14
|
|
drshrn_h v28, v22, v23, #14
|
|
drshrn_h v7, v7, v6, #14
|
|
drshrn_h v31, v26, v27, #14
|
|
drshrn_h v6, v20, v21, #14
|
|
drshrn_h v30, v24, v25, #14
|
|
|
|
dmbutterfly_l v16, v17, v18, v19, v29, v4, v0.h[4], v0.h[5]
|
|
dmbutterfly_l v27, v26, v20, v21, v31, v5, v0.h[4], v0.h[5]
|
|
drshrn_h v23, v16, v17, #14
|
|
drshrn_h v24, v18, v19, #14
|
|
neg v20.4s, v20.4s
|
|
neg v21.4s, v21.4s
|
|
drshrn_h v27, v27, v26, #14
|
|
drshrn_h v20, v20, v21, #14
|
|
dmbutterfly_l v16, v17, v18, v19, v30, v6, v0.h[6], v0.h[7]
|
|
drshrn_h v21, v16, v17, #14
|
|
drshrn_h v26, v18, v19, #14
|
|
dmbutterfly_l v16, v17, v18, v19, v28, v7, v0.h[6], v0.h[7]
|
|
drshrn_h v25, v16, v17, #14
|
|
neg v18.4s, v18.4s
|
|
neg v19.4s, v19.4s
|
|
drshrn_h v22, v18, v19, #14
|
|
|
|
idct32_end
|
|
endfunc
|
|
|
|
.macro idct32_funcs suffix
|
|
// Do an 32-point IDCT of a 8x32 slice out of a 32x32 matrix.
|
|
// The 32-point IDCT can be decomposed into two 16-point IDCTs;
|
|
// a normal IDCT16 with every other input component (the even ones, with
|
|
// each output written twice), followed by a separate 16-point IDCT
|
|
// of the odd inputs, added/subtracted onto the outputs of the first idct16.
|
|
// x0 = dst (temp buffer)
|
|
// x1 = unused
|
|
// x2 = src
|
|
// x9 = double input stride
|
|
function idct32_1d_8x32_pass1\suffix\()_neon
|
|
mov x14, x30
|
|
movi v2.8h, #0
|
|
|
|
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
|
|
.ifb \suffix
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
.ifc \suffix,_quarter
|
|
.irp i, 16, 17, 18, 19
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
.ifc \suffix,_half
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
|
|
bl idct16\suffix
|
|
|
|
// Do two 8x8 transposes. Originally, v16-v31 contain the
|
|
// 16 rows. Afterwards, v16-v23 and v24-v31 contain the
|
|
// two transposed 8x8 blocks.
|
|
transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
|
|
transpose_8x8H v24, v25, v26, v27, v28, v29, v30, v31, v2, v3
|
|
|
|
// Store the registers a, b horizontally, followed by the
|
|
// same registers b, a mirrored.
|
|
.macro store_rev a, b
|
|
// There's no rev128 instruction, but we reverse each 64 bit
|
|
// half, and then flip them using an ext with 8 bytes offset.
|
|
rev64 v3.8h, \b
|
|
st1 {\a}, [x0], #16
|
|
rev64 v2.8h, \a
|
|
ext v3.16b, v3.16b, v3.16b, #8
|
|
st1 {\b}, [x0], #16
|
|
ext v2.16b, v2.16b, v2.16b, #8
|
|
st1 {v3.8h}, [x0], #16
|
|
st1 {v2.8h}, [x0], #16
|
|
.endm
|
|
store_rev v16.8h, v24.8h
|
|
store_rev v17.8h, v25.8h
|
|
store_rev v18.8h, v26.8h
|
|
store_rev v19.8h, v27.8h
|
|
store_rev v20.8h, v28.8h
|
|
store_rev v21.8h, v29.8h
|
|
store_rev v22.8h, v30.8h
|
|
store_rev v23.8h, v31.8h
|
|
sub x0, x0, #512
|
|
.purgem store_rev
|
|
|
|
// Move x2 back to the start of the input, and move
|
|
// to the first odd row
|
|
.ifb \suffix
|
|
sub x2, x2, x9, lsl #4
|
|
.endif
|
|
.ifc \suffix,_quarter
|
|
sub x2, x2, x9, lsl #2
|
|
.endif
|
|
.ifc \suffix,_half
|
|
sub x2, x2, x9, lsl #3
|
|
.endif
|
|
add x2, x2, #64
|
|
|
|
movi v2.8h, #0
|
|
// v16 = IN(1), v17 = IN(3) ... v31 = IN(31)
|
|
.ifb \suffix
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
.ifc \suffix,_quarter
|
|
.irp i, 16, 17, 18, 19
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
.ifc \suffix,_half
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load_clear \i, x2, x9
|
|
.endr
|
|
.endif
|
|
|
|
bl idct32_odd\suffix
|
|
|
|
transpose_8x8H v31, v30, v29, v28, v27, v26, v25, v24, v2, v3
|
|
transpose_8x8H v23, v22, v21, v20, v19, v18, v17, v16, v2, v3
|
|
|
|
// Store the registers a, b horizontally,
|
|
// adding into the output first, and the mirrored,
|
|
// subtracted from the output.
|
|
.macro store_rev a, b
|
|
ld1 {v4.8h}, [x0]
|
|
rev64 v3.8h, \b
|
|
add v4.8h, v4.8h, \a
|
|
rev64 v2.8h, \a
|
|
st1 {v4.8h}, [x0], #16
|
|
ext v3.16b, v3.16b, v3.16b, #8
|
|
ld1 {v5.8h}, [x0]
|
|
ext v2.16b, v2.16b, v2.16b, #8
|
|
add v5.8h, v5.8h, \b
|
|
st1 {v5.8h}, [x0], #16
|
|
ld1 {v6.8h}, [x0]
|
|
sub v6.8h, v6.8h, v3.8h
|
|
st1 {v6.8h}, [x0], #16
|
|
ld1 {v7.8h}, [x0]
|
|
sub v7.8h, v7.8h, v2.8h
|
|
st1 {v7.8h}, [x0], #16
|
|
.endm
|
|
|
|
store_rev v31.8h, v23.8h
|
|
store_rev v30.8h, v22.8h
|
|
store_rev v29.8h, v21.8h
|
|
store_rev v28.8h, v20.8h
|
|
store_rev v27.8h, v19.8h
|
|
store_rev v26.8h, v18.8h
|
|
store_rev v25.8h, v17.8h
|
|
store_rev v24.8h, v16.8h
|
|
.purgem store_rev
|
|
br x14
|
|
endfunc
|
|
|
|
// This is mostly the same as 8x32_pass1, but without the transpose,
|
|
// and use the source as temp buffer between the two idct passes, and
|
|
// add into the destination.
|
|
// x0 = dst
|
|
// x1 = dst stride
|
|
// x2 = src (temp buffer)
|
|
// x7 = negative double temp buffer stride
|
|
// x9 = double temp buffer stride
|
|
function idct32_1d_8x32_pass2\suffix\()_neon
|
|
mov x14, x30
|
|
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
|
|
.ifb \suffix
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #4
|
|
.endif
|
|
.ifc \suffix,_quarter
|
|
.irp i, 16, 17, 18, 19
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #2
|
|
.endif
|
|
.ifc \suffix,_half
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #3
|
|
.endif
|
|
|
|
bl idct16\suffix
|
|
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
store \i, x2, x9
|
|
.endr
|
|
|
|
sub x2, x2, x9, lsl #4
|
|
add x2, x2, #64
|
|
|
|
// v16 = IN(1), v17 = IN(3) ... v31 = IN(31)
|
|
.ifb \suffix
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #4
|
|
.endif
|
|
.ifc \suffix,_quarter
|
|
.irp i, 16, 17, 18, 19
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #2
|
|
.endif
|
|
.ifc \suffix,_half
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
|
load \i, x2, x9
|
|
.endr
|
|
sub x2, x2, x9, lsl #3
|
|
.endif
|
|
sub x2, x2, #64
|
|
|
|
bl idct32_odd\suffix
|
|
|
|
.macro load_acc_store a, b, c, d, neg=0
|
|
.if \neg == 0
|
|
ld1 {v4.8h}, [x2], x9
|
|
ld1 {v5.8h}, [x2], x9
|
|
add v4.8h, v4.8h, \a
|
|
ld1 {v6.8h}, [x2], x9
|
|
add v5.8h, v5.8h, \b
|
|
ld1 {v7.8h}, [x2], x9
|
|
add v6.8h, v6.8h, \c
|
|
add v7.8h, v7.8h, \d
|
|
.else
|
|
ld1 {v4.8h}, [x2], x7
|
|
ld1 {v5.8h}, [x2], x7
|
|
sub v4.8h, v4.8h, \a
|
|
ld1 {v6.8h}, [x2], x7
|
|
sub v5.8h, v5.8h, \b
|
|
ld1 {v7.8h}, [x2], x7
|
|
sub v6.8h, v6.8h, \c
|
|
sub v7.8h, v7.8h, \d
|
|
.endif
|
|
ld1 {v10.8b}, [x0], x1
|
|
ld1 {v11.8b}, [x0], x1
|
|
srshr v4.8h, v4.8h, #6
|
|
ld1 {v2.8b}, [x0], x1
|
|
srshr v5.8h, v5.8h, #6
|
|
uaddw v4.8h, v4.8h, v10.8b
|
|
ld1 {v3.8b}, [x0], x1
|
|
srshr v6.8h, v6.8h, #6
|
|
uaddw v5.8h, v5.8h, v11.8b
|
|
srshr v7.8h, v7.8h, #6
|
|
sub x0, x0, x1, lsl #2
|
|
uaddw v6.8h, v6.8h, v2.8b
|
|
sqxtun v4.8b, v4.8h
|
|
uaddw v7.8h, v7.8h, v3.8b
|
|
sqxtun v5.8b, v5.8h
|
|
st1 {v4.8b}, [x0], x1
|
|
sqxtun v6.8b, v6.8h
|
|
st1 {v5.8b}, [x0], x1
|
|
sqxtun v7.8b, v7.8h
|
|
st1 {v6.8b}, [x0], x1
|
|
st1 {v7.8b}, [x0], x1
|
|
.endm
|
|
load_acc_store v31.8h, v30.8h, v29.8h, v28.8h
|
|
load_acc_store v27.8h, v26.8h, v25.8h, v24.8h
|
|
load_acc_store v23.8h, v22.8h, v21.8h, v20.8h
|
|
load_acc_store v19.8h, v18.8h, v17.8h, v16.8h
|
|
sub x2, x2, x9
|
|
load_acc_store v16.8h, v17.8h, v18.8h, v19.8h, 1
|
|
load_acc_store v20.8h, v21.8h, v22.8h, v23.8h, 1
|
|
load_acc_store v24.8h, v25.8h, v26.8h, v27.8h, 1
|
|
load_acc_store v28.8h, v29.8h, v30.8h, v31.8h, 1
|
|
.purgem load_acc_store
|
|
br x14
|
|
endfunc
|
|
.endm
|
|
|
|
idct32_funcs
|
|
idct32_funcs _quarter
|
|
idct32_funcs _half
|
|
|
|
const min_eob_idct_idct_32, align=4
|
|
.short 0, 34, 135, 336
|
|
endconst
|
|
|
|
function ff_vp9_idct_idct_32x32_add_neon, export=1
|
|
cmp w3, #1
|
|
b.eq idct32x32_dc_add_neon
|
|
|
|
movrel x10, idct_coeffs
|
|
|
|
mov x15, x30
|
|
|
|
stp d10, d11, [sp, #-0x10]!
|
|
stp d8, d9, [sp, #-0x10]!
|
|
|
|
sub sp, sp, #2048
|
|
|
|
mov x4, x0
|
|
mov x5, x1
|
|
mov x6, x2
|
|
|
|
// Double stride of the input, since we only read every other line
|
|
mov x9, #128
|
|
neg x7, x9
|
|
|
|
ld1 {v0.8h,v1.8h}, [x10], #32
|
|
ld1 {v8.8h,v9.8h}, [x10]
|
|
|
|
cmp w3, #34
|
|
b.le idct32x32_quarter_add_neon
|
|
cmp w3, #135
|
|
b.le idct32x32_half_add_neon
|
|
|
|
movrel x12, min_eob_idct_idct_32, 2
|
|
|
|
.irp i, 0, 8, 16, 24
|
|
add x0, sp, #(\i*64)
|
|
.if \i > 0
|
|
ldrh w1, [x12], #2
|
|
cmp w3, w1
|
|
mov x1, #(32 - \i)/4
|
|
b.le 1f
|
|
.endif
|
|
add x2, x6, #(\i*2)
|
|
bl idct32_1d_8x32_pass1_neon
|
|
.endr
|
|
b 3f
|
|
|
|
1:
|
|
// Write zeros to the temp buffer for pass 2
|
|
movi v16.8h, #0
|
|
movi v17.8h, #0
|
|
movi v18.8h, #0
|
|
movi v19.8h, #0
|
|
2:
|
|
subs x1, x1, #1
|
|
.rept 4
|
|
st1 {v16.8h-v19.8h}, [x0], #64
|
|
.endr
|
|
b.ne 2b
|
|
3:
|
|
.irp i, 0, 8, 16, 24
|
|
add x0, x4, #(\i)
|
|
mov x1, x5
|
|
add x2, sp, #(\i*2)
|
|
bl idct32_1d_8x32_pass2_neon
|
|
.endr
|
|
|
|
add sp, sp, #2048
|
|
|
|
ldp d8, d9, [sp], 0x10
|
|
ldp d10, d11, [sp], 0x10
|
|
|
|
br x15
|
|
endfunc
|
|
|
|
.macro idct32_partial size
|
|
function idct32x32_\size\()_add_neon
|
|
add x0, sp, #(0*64)
|
|
add x2, x6, #(0*2)
|
|
bl idct32_1d_8x32_pass1_\size\()_neon
|
|
.ifc \size,half
|
|
add x0, sp, #(8*64)
|
|
add x2, x6, #(8*2)
|
|
bl idct32_1d_8x32_pass1_\size\()_neon
|
|
.endif
|
|
.irp i, 0, 8, 16, 24
|
|
add x0, x4, #(\i)
|
|
mov x1, x5
|
|
add x2, sp, #(\i*2)
|
|
bl idct32_1d_8x32_pass2_\size\()_neon
|
|
.endr
|
|
|
|
add sp, sp, #2048
|
|
|
|
ldp d8, d9, [sp], 0x10
|
|
ldp d10, d11, [sp], 0x10
|
|
|
|
br x15
|
|
endfunc
|
|
.endm
|
|
|
|
idct32_partial quarter
|
|
idct32_partial half
|