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https://github.com/FFmpeg/FFmpeg.git
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2ed67eba96
This work is sponsored by, and copyright, Google.
This is structured similarly to the 8 bit version. In the 8 bit
version, the coefficients are 16 bits, and intermediates are 32 bits.
Here, the coefficients are 32 bit. For the 4x4 transforms for 10 bit
content, the intermediates also fit in 32 bits, but for all other
transforms (4x4 for 12 bit content, and 8x8 and larger for both 10
and 12 bit) the intermediates are 64 bit.
For the existing 8 bit case, the 8x8 transform fit all coefficients in
registers; for 10/12 bit, when the coefficients are 32 bit, the 8x8
transform also has to be done in slices of 4 pixels (just as 16x16 and
32x32 for 8 bit).
The slice width also shrinks from 4 elements to 2 elements in parallel
for the 16x16 and 32x32 cases.
The 16 bit coefficients from idct_coeffs and similar tables also need
to be lenghtened to 32 bit in order to be used in multiplication with
vectors with 32 bit elements. This leads to the fixed coefficient
vectors needing more space, leading to more cases where they have to
be reloaded within the transform (in iadst16).
This technically would need testing in checkasm for subpartitions
in increments of 2, but that slows down normal checkasm runs
excessively.
Examples of relative speedup compared to the C version, from checkasm:
Cortex A7 A8 A9 A53
vp9_inv_adst_adst_4x4_sub4_add_10_neon: 4.83 11.36 5.22 6.77
vp9_inv_adst_adst_8x8_sub8_add_10_neon: 4.12 7.60 4.06 4.84
vp9_inv_adst_adst_16x16_sub16_add_10_neon: 3.93 8.16 4.52 5.35
vp9_inv_dct_dct_4x4_sub1_add_10_neon: 1.36 2.57 1.41 1.61
vp9_inv_dct_dct_4x4_sub4_add_10_neon: 4.24 8.66 5.06 5.81
vp9_inv_dct_dct_8x8_sub1_add_10_neon: 2.63 4.18 1.68 2.87
vp9_inv_dct_dct_8x8_sub4_add_10_neon: 4.52 9.47 4.24 5.39
vp9_inv_dct_dct_8x8_sub8_add_10_neon: 3.45 7.34 3.45 4.30
vp9_inv_dct_dct_16x16_sub1_add_10_neon: 3.56 6.21 2.47 4.32
vp9_inv_dct_dct_16x16_sub2_add_10_neon: 5.68 12.73 5.28 7.07
vp9_inv_dct_dct_16x16_sub8_add_10_neon: 4.42 9.28 4.24 5.45
vp9_inv_dct_dct_16x16_sub16_add_10_neon: 3.41 7.29 3.35 4.19
vp9_inv_dct_dct_32x32_sub1_add_10_neon: 4.52 8.35 3.83 6.40
vp9_inv_dct_dct_32x32_sub2_add_10_neon: 5.86 13.19 6.14 7.04
vp9_inv_dct_dct_32x32_sub16_add_10_neon: 4.29 8.11 4.59 5.06
vp9_inv_dct_dct_32x32_sub32_add_10_neon: 3.31 5.70 3.56 3.84
vp9_inv_wht_wht_4x4_sub4_add_10_neon: 1.89 2.80 1.82 1.97
The speedup compared to the C functions is around 1.3 to 7x for the
full transforms, even higher for the smaller subpartitions.
Signed-off-by: Martin Storsjö <martin@martin.st>
1516 lines
55 KiB
ArmAsm
1516 lines
55 KiB
ArmAsm
/*
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* Copyright (c) 2017 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/arm/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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@ Do two 4x4 transposes, using q registers for the subtransposes that don't
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@ need to address the individual d registers.
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@ r0,r1 == rq1, r2,r3 == rq1, etc
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.macro transpose32_q_2x_4x4 rq0, rq1, rq2, rq3, rq4, rq5, rq6, rq7, r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15
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vswp \r1, \r4 @ vtrn.64 \rq0, \rq2
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vswp \r3, \r6 @ vtrn.64 \rq1, \rq3
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vswp \r9, \r12 @ vtrn.64 \rq4, \rq6
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vswp \r11, \r14 @ vtrn.64 \rq5, \rq7
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vtrn.32 \rq0, \rq1
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vtrn.32 \rq2, \rq3
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vtrn.32 \rq4, \rq5
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vtrn.32 \rq6, \rq7
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.endm
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@ Do eight 2x2 transposes.
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.macro transpose32_8x_2x2 r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15
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vtrn.32 \r0, \r1
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vtrn.32 \r2, \r3
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vtrn.32 \r4, \r5
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vtrn.32 \r6, \r7
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vtrn.32 \r8, \r9
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vtrn.32 \r10, \r11
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vtrn.32 \r12, \r13
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vtrn.32 \r14, \r15
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.endm
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@ out1 = ((in1 + in2) * d0[0] + (1 << 13)) >> 14
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@ out2 = ((in1 - in2) * d0[0] + (1 << 13)) >> 14
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@ in/out are d registers
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.macro mbutterfly0 out1, out2, in1, in2, tmpd1, tmpd2, tmpq3, tmpq4, neg=0
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vadd.s32 \tmpd1, \in1, \in2
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vsub.s32 \tmpd2, \in1, \in2
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.if \neg > 0
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vneg.s32 \tmpd1, \tmpd1
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.endif
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vmull.s32 \tmpq3, \tmpd1, d0[0]
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vmull.s32 \tmpq4, \tmpd2, d0[0]
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vrshrn.s64 \out1, \tmpq3, #14
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vrshrn.s64 \out2, \tmpq4, #14
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.endm
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@ out1,out2 = ((in1 + in2) * d0[0] + (1 << 13)) >> 14
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@ out3,out4 = ((in1 - in2) * d0[0] + (1 << 13)) >> 14
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@ Same as mbutterfly0, but with input being 2 q registers, output
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@ being 4 d registers.
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@ This can do with either 4 or 6 temporary q registers.
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.macro dmbutterfly0 out1, out2, out3, out4, in1, in2, tmpq1, tmpq2, tmpd11, tmpd12, tmpd21, tmpd22, tmpq3, tmpq4, tmpq5, tmpq6
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vadd.s32 \tmpq1, \in1, \in2
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vsub.s32 \tmpq2, \in1, \in2
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vmull.s32 \tmpq3, \tmpd11, d0[0]
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vmull.s32 \tmpq4, \tmpd12, d0[0]
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.ifb \tmpq5
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vrshrn.s64 \out1, \tmpq3, #14
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vrshrn.s64 \out2, \tmpq4, #14
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vmull.s32 \tmpq3, \tmpd21, d0[0]
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vmull.s32 \tmpq4, \tmpd22, d0[0]
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vrshrn.s64 \out3, \tmpq3, #14
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vrshrn.s64 \out4, \tmpq4, #14
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.else
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vmull.s32 \tmpq5, \tmpd21, d0[0]
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vmull.s32 \tmpq6, \tmpd22, d0[0]
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vrshrn.s64 \out1, \tmpq3, #14
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vrshrn.s64 \out2, \tmpq4, #14
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vrshrn.s64 \out3, \tmpq5, #14
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vrshrn.s64 \out4, \tmpq6, #14
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.endif
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.endm
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@ out1 = in1 * coef1 - in2 * coef2
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@ out2 = in1 * coef2 + in2 * coef1
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@ out are 2 q registers, in are 2 d registers
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.macro mbutterfly_l out1, out2, in1, in2, coef1, coef2, neg=0
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vmull.s32 \out1, \in1, \coef1
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vmlsl.s32 \out1, \in2, \coef2
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.if \neg
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vmov.s64 \out2, #0
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vmlsl.s32 \out2, \in1, \coef2
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vmlsl.s32 \out2, \in2, \coef1
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.else
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vmull.s32 \out2, \in1, \coef2
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vmlal.s32 \out2, \in2, \coef1
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.endif
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.endm
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@ out1,out2 = in1,in2 * coef1 - in3,in4 * coef2
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@ out3,out4 = in1,in2 * coef2 + in3,in4 * coef1
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@ out are 4 q registers, in are 4 d registers
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.macro dmbutterfly_l out1, out2, out3, out4, in1, in2, in3, in4, coef1, coef2
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vmull.s32 \out1, \in1, \coef1
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vmull.s32 \out2, \in2, \coef1
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vmull.s32 \out3, \in1, \coef2
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vmull.s32 \out4, \in2, \coef2
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vmlsl.s32 \out1, \in3, \coef2
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vmlsl.s32 \out2, \in4, \coef2
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vmlal.s32 \out3, \in3, \coef1
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vmlal.s32 \out4, \in4, \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 d registers, tmp are 2 q registers
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.macro mbutterfly inout1, inout2, coef1, coef2, tmp1, tmp2, neg=0
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mbutterfly_l \tmp1, \tmp2, \inout1, \inout2, \coef1, \coef2, \neg
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vrshrn.s64 \inout1, \tmp1, #14
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vrshrn.s64 \inout2, \tmp2, #14
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.endm
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@ inout1,inout2 = (inout1,inout2 * coef1 - inout3,inout4 * coef2 + (1 << 13)) >> 14
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@ inout3,inout4 = (inout1,inout2 * coef2 + inout3,inout4 * coef1 + (1 << 13)) >> 14
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@ inout are 4 d registers, tmp are 4 q registers
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.macro dmbutterfly inout1, inout2, inout3, inout4, coef1, coef2, tmp1, tmp2, tmp3, tmp4
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dmbutterfly_l \tmp1, \tmp2, \tmp3, \tmp4, \inout1, \inout2, \inout3, \inout4, \coef1, \coef2
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vrshrn.s64 \inout1, \tmp1, #14
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vrshrn.s64 \inout2, \tmp2, #14
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vrshrn.s64 \inout3, \tmp3, #14
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vrshrn.s64 \inout4, \tmp4, #14
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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 out1, out2, in1, in2
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vadd.s32 \out1, \in1, \in2
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vsub.s32 \out2, \in1, \in2
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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_r out1, out2, in1, in2
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vsub.s32 \out1, \in1, \in2
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vadd.s32 \out2, \in1, \in2
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.endm
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@ out1 = (in1 + in2 + (1 << 13)) >> 14
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@ out2 = (in1 - in2 + (1 << 13)) >> 14
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@ out are 2 d registers, in are 2 q registers, tmp are 2 q registers
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.macro butterfly_n out1, out2, in1, in2, tmp1, tmp2
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vadd.s64 \tmp1, \in1, \in2
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vsub.s64 \tmp2, \in1, \in2
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vrshrn.s64 \out1, \tmp1, #14
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vrshrn.s64 \out2, \tmp2, #14
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.endm
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@ out1,out2 = (in1,in2 + in3,in4 + (1 << 13)) >> 14
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@ out3,out4 = (in1,in2 - in3,in4 + (1 << 13)) >> 14
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@ out are 4 d registers, in are 4 q registers, tmp are 4 q registers
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.macro dbutterfly_n out1, out2, out3, out4, in1, in2, in3, in4, tmp1, tmp2, tmp3, tmp4
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vadd.s64 \tmp1, \in1, \in3
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vadd.s64 \tmp2, \in2, \in4
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vsub.s64 \tmp3, \in1, \in3
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vsub.s64 \tmp4, \in2, \in4
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vrshrn.s64 \out1, \tmp1, #14
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vrshrn.s64 \out2, \tmp2, #14
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vrshrn.s64 \out3, \tmp3, #14
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vrshrn.s64 \out4, \tmp4, #14
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.endm
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.macro iwht4_10 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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vadd.i32 \c0, \c0, \c1
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vsub.i32 q11, \c2, \c3
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vsub.i32 q10, \c0, q11
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vshr.s32 q10, q10, #1
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vsub.i32 \c2, q10, \c1
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vsub.i32 \c1, q10, \c3
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vadd.i32 \c3, q11, \c2
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vsub.i32 \c0, \c0, \c1
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.endm
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.macro iwht4_12 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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iwht4_10 \c0, \c1, \c2, \c3, \cd0, \cd1, \cd2, \cd3, \cd4, \cd5, \cd6, \cd7
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.endm
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@ c0 == cd0,cd1, c1 == cd2,cd3
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.macro idct4_10 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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vmul.s32 q13, \c1, d1[1]
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vmul.s32 q11, \c1, d1[0]
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vadd.i32 q14, \c0, \c2
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vsub.i32 q15, \c0, \c2
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vmla.s32 q13, \c3, d1[0]
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vmul.s32 q12, q14, d0[0]
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vmul.s32 q10, q15, d0[0]
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vmls.s32 q11, \c3, d1[1]
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vrshr.s32 q13, q13, #14
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vrshr.s32 q12, q12, #14
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vrshr.s32 q10, q10, #14
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vrshr.s32 q11, q11, #14
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vadd.i32 \c0, q12, q13
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vsub.i32 \c3, q12, q13
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vadd.i32 \c1, q10, q11
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vsub.i32 \c2, q10, q11
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.endm
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.macro idct4_12 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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vmull.s32 q13, \cd2, d1[1]
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vmull.s32 q15, \cd3, d1[1]
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vmull.s32 q11, \cd2, d1[0]
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vmull.s32 q3, \cd3, d1[0]
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vadd.i32 q14, \c0, \c2
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vsub.i32 q2, \c0, \c2
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vmlal.s32 q13, \cd6, d1[0]
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vmlal.s32 q15, \cd7, d1[0]
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vmull.s32 q12, d28, d0[0]
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vmull.s32 q14, d29, d0[0]
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vmull.s32 q10, d4, d0[0]
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vmull.s32 q8, d5, d0[0]
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vmlsl.s32 q11, \cd6, d1[1]
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vmlsl.s32 q3, \cd7, d1[1]
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vrshrn.s64 d26, q13, #14
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vrshrn.s64 d27, q15, #14
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vrshrn.s64 d24, q12, #14
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vrshrn.s64 d25, q14, #14
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vrshrn.s64 d20, q10, #14
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vrshrn.s64 d21, q8, #14
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vrshrn.s64 d22, q11, #14
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vrshrn.s64 d23, q3, #14
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vadd.i32 \c0, q12, q13
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vsub.i32 \c3, q12, q13
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vadd.i32 \c1, q10, q11
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vsub.i32 \c2, q10, q11
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.endm
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.macro iadst4_10 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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vmul.s32 q10, \c0, d2[0]
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vmla.s32 q10, \c2, d2[1]
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vmla.s32 q10, \c3, d3[0]
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vmul.s32 q11, \c0, d3[0]
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vmls.s32 q11, \c2, d2[0]
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vsub.s32 \c0, \c0, \c2
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vmls.s32 q11, \c3, d2[1]
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vadd.s32 \c0, \c0, \c3
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vmul.s32 q13, \c1, d3[1]
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vmul.s32 q12, \c0, d3[1]
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vadd.s32 q14, q10, q13
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vadd.s32 q15, q11, q13
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vrshr.s32 \c0, q14, #14
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vadd.s32 q10, q10, q11
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vrshr.s32 \c1, q15, #14
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vsub.s32 q10, q10, q13
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vrshr.s32 \c2, q12, #14
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vrshr.s32 \c3, q10, #14
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|
.endm
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.macro iadst4_12 c0, c1, c2, c3, cd0, cd1, cd2, cd3, cd4, cd5, cd6, cd7
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vmull.s32 q10, \cd0, d2[0]
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|
vmull.s32 q4, \cd1, d2[0]
|
|
vmlal.s32 q10, \cd4, d2[1]
|
|
vmlal.s32 q4, \cd5, d2[1]
|
|
vmlal.s32 q10, \cd6, d3[0]
|
|
vmlal.s32 q4, \cd7, d3[0]
|
|
vmull.s32 q11, \cd0, d3[0]
|
|
vmull.s32 q5, \cd1, d3[0]
|
|
vmlsl.s32 q11, \cd4, d2[0]
|
|
vmlsl.s32 q5, \cd5, d2[0]
|
|
vsub.s32 \c0, \c0, \c2
|
|
vmlsl.s32 q11, \cd6, d2[1]
|
|
vmlsl.s32 q5, \cd7, d2[1]
|
|
vadd.s32 \c0, \c0, \c3
|
|
vmull.s32 q13, \cd2, d3[1]
|
|
vmull.s32 q6, \cd3, d3[1]
|
|
vmull.s32 q12, \cd0, d3[1]
|
|
vmull.s32 q7, \cd1, d3[1]
|
|
vadd.s64 q14, q10, q13
|
|
vadd.s64 q2, q4, q6
|
|
vadd.s64 q15, q11, q13
|
|
vadd.s64 q3, q5, q6
|
|
vrshrn.s64 \cd1, q2, #14
|
|
vrshrn.s64 \cd0, q14, #14
|
|
vadd.s64 q10, q10, q11
|
|
vadd.s64 q4, q4, q5
|
|
vrshrn.s64 \cd3, q3, #14
|
|
vrshrn.s64 \cd2, q15, #14
|
|
vsub.s64 q10, q10, q13
|
|
vsub.s64 q4, q4, q6
|
|
vrshrn.s64 \cd4, q12, #14
|
|
vrshrn.s64 \cd5, q7, #14
|
|
vrshrn.s64 \cd6, q10, #14
|
|
vrshrn.s64 \cd7, q4, #14
|
|
.endm
|
|
|
|
@ The public functions in this file have got the following signature:
|
|
@ void itxfm_add(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob);
|
|
|
|
.macro itxfm_func4x4 txfm1, txfm2, bpp
|
|
function ff_vp9_\txfm1\()_\txfm2\()_4x4_add_\bpp\()_neon, export=1
|
|
.ifc \txfm1,\txfm2
|
|
.ifc \txfm1,idct
|
|
movrel r12, itxfm4_coeffs
|
|
vld1.16 {d0}, [r12,:64]
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
.ifc \txfm1,iadst
|
|
movrel r12, iadst4_coeffs
|
|
vld1.16 {d1}, [r12,:64]
|
|
vmovl.s16 q1, d1
|
|
.endif
|
|
.else
|
|
movrel r12, itxfm4_coeffs
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
.if \bpp > 10
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
@ iadst4_12 needs q4-q7
|
|
vpush {q4-q7}
|
|
.endif
|
|
.endif
|
|
|
|
vmov.i32 q14, #0
|
|
vmov.i32 q15, #0
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp r3, #1
|
|
bne 1f
|
|
@ DC-only for idct/idct
|
|
vld1.32 {d4[]}, [r2,:32]
|
|
vmull.s32 q2, d4, d0[0]
|
|
vrshrn.s64 d4, q2, #14
|
|
vmull.s32 q2, d4, d0[0]
|
|
vrshrn.s64 d4, q2, #14
|
|
vst1.32 {d30[0]}, [r2,:32]
|
|
vdup.32 q2, d4[0]
|
|
vmov q3, q2
|
|
vmov q8, q2
|
|
vmov q9, q2
|
|
b 2f
|
|
.endif
|
|
|
|
1:
|
|
vld1.32 {q2-q3}, [r2,:128]
|
|
vst1.32 {q14-q15}, [r2,:128]!
|
|
vld1.32 {q8-q9}, [r2,:128]
|
|
|
|
.ifc \txfm1,iwht
|
|
vshr.s32 q2, q2, #2
|
|
vshr.s32 q3, q3, #2
|
|
vshr.s32 q8, q8, #2
|
|
vshr.s32 q9, q9, #2
|
|
.endif
|
|
|
|
vst1.16 {q14-q15}, [r2,:128]!
|
|
\txfm1\()4_\bpp q2, q3, q8, q9, d4, d5, d6, d7, d16, d17, d18, d19
|
|
|
|
@ Transpose 4x4 with 32 bit elements
|
|
vtrn.32 q2, q3
|
|
vtrn.32 q8, q9
|
|
vswp d5, d16
|
|
vswp d7, d18
|
|
|
|
\txfm2\()4_\bpp q2, q3, q8, q9, d4, d5, d6, d7, d16, d17, d18, d19
|
|
2:
|
|
vmvn.u16 q15, #((0xffff << \bpp) & 0xffff)
|
|
vld1.16 {d0}, [r0,:64], r1
|
|
vld1.16 {d1}, [r0,:64], r1
|
|
.ifnc \txfm1,iwht
|
|
vrshr.s32 q2, q2, #4
|
|
vrshr.s32 q3, q3, #4
|
|
vrshr.s32 q8, q8, #4
|
|
vrshr.s32 q9, q9, #4
|
|
.endif
|
|
vaddw.u16 q2, q2, d0
|
|
vaddw.u16 q3, q3, d1
|
|
vld1.16 {d2}, [r0,:64], r1
|
|
vld1.16 {d3}, [r0,:64], r1
|
|
vqmovun.s32 d0, q2
|
|
vqmovun.s32 d1, q3
|
|
sub r0, r0, r1, lsl #2
|
|
|
|
vaddw.u16 q8, q8, d2
|
|
vmin.u16 q0, q0, q15
|
|
vaddw.u16 q9, q9, d3
|
|
vst1.16 {d0}, [r0,:64], r1
|
|
vqmovun.s32 d2, q8
|
|
vqmovun.s32 d3, q9
|
|
vmin.u16 q1, q1, q15
|
|
|
|
vst1.16 {d1}, [r0,:64], r1
|
|
vst1.16 {d2}, [r0,:64], r1
|
|
vst1.16 {d3}, [r0,:64], r1
|
|
|
|
.if \bpp > 10
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
vpop {q4-q7}
|
|
.endif
|
|
.endif
|
|
bx lr
|
|
endfunc
|
|
.endm
|
|
|
|
.macro itxfm_funcs4x4 bpp
|
|
itxfm_func4x4 idct, idct, \bpp
|
|
itxfm_func4x4 iadst, idct, \bpp
|
|
itxfm_func4x4 idct, iadst, \bpp
|
|
itxfm_func4x4 iadst, iadst, \bpp
|
|
itxfm_func4x4 iwht, iwht, \bpp
|
|
.endm
|
|
|
|
itxfm_funcs4x4 10
|
|
itxfm_funcs4x4 12
|
|
|
|
.macro idct8
|
|
dmbutterfly0 d16, d17, d24, d25, q8, q12, q2, q4, d4, d5, d8, d9, q3, q2, q5, q4 @ q8 = t0a, q12 = t1a
|
|
dmbutterfly d20, d21, d28, d29, d1[0], d1[1], q2, q3, q4, q5 @ q10 = t2a, q14 = t3a
|
|
dmbutterfly d18, d19, d30, d31, d2[0], d2[1], q2, q3, q4, q5 @ q9 = t4a, q15 = t7a
|
|
dmbutterfly d26, d27, d22, d23, d3[0], d3[1], q2, q3, q4, q5 @ q13 = t5a, q11 = t6a
|
|
|
|
butterfly q2, q14, q8, q14 @ q2 = t0, q14 = t3
|
|
butterfly q3, q10, q12, q10 @ q3 = t1, q10 = t2
|
|
butterfly q4, q13, q9, q13 @ q4 = t4, q13 = t5a
|
|
butterfly q5, q11, q15, q11 @ q5 = t7, q11 = t6a
|
|
|
|
butterfly q8, q15, q2, q5 @ q8 = out[0], q15 = out[7]
|
|
|
|
dmbutterfly0 d4, d5, d10, d11, q11, q13, q9, q13, d18, d19, d26, d27, q2, q5, q11, q12 @ q2 = t6, q5 = t5
|
|
|
|
butterfly q11, q12, q14, q4 @ q11 = out[3], q12 = out[4]
|
|
butterfly q9, q14, q3, q2 @ q9 = out[1], q14 = out[6]
|
|
butterfly_r q13, q10, q10, q5 @ q13 = out[5], q10 = out[2]
|
|
.endm
|
|
|
|
.macro iadst8
|
|
movrel r12, iadst8_coeffs
|
|
vld1.16 {q1}, [r12,:128]!
|
|
vmovl.s16 q0, d2
|
|
vmovl.s16 q1, d3
|
|
|
|
dmbutterfly_l q4, q5, q2, q3, d30, d31, d16, d17, d0[1], d0[0] @ q4,q5 = t1a, q2,q3 = t0a
|
|
dmbutterfly_l q8, q15, q6, q7, d22, d23, d24, d25, d2[1], d2[0] @ q8,q15 = t5a, q6,q7 = t4a
|
|
|
|
dbutterfly_n d22, d23, d4, d5, q2, q3, q6, q7, q11, q12, q2, q3 @ q11 = t0, q2 = t4
|
|
|
|
dbutterfly_n d24, d25, d6, d7, q4, q5, q8, q15, q12, q3, q6, q7 @ q12 = t1, q3 = t5
|
|
|
|
dmbutterfly_l q6, q7, q4, q5, d26, d27, d20, d21, d1[1], d1[0] @ q6,q7 = t3a, q4,q5 = t2a
|
|
dmbutterfly_l q10, q13, q8, q15, d18, d19, d28, d29, d3[1], d3[0] @ q10,q13 = t7a, q8,q15 = t6a
|
|
|
|
dbutterfly_n d18, d19, d8, d9, q4, q5, q8, q15, q9, q14, q4, q5 @ q9 = t2, q4 = t6
|
|
dbutterfly_n d16, d17, d12, d13, q6, q7, q10, q13, q8, q15, q6, q7 @ q8 = t3, q6 = t7
|
|
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
butterfly q15, q12, q12, q8 @ q15 = -out[7], q12 = t3
|
|
vneg.s32 q15, q15 @ q15 = out[7]
|
|
butterfly q8, q9, q11, q9 @ q8 = out[0], q9 = t2
|
|
|
|
dmbutterfly_l q10, q11, q5, q7, d4, d5, d6, d7, d1[0], d1[1] @ q10,q11 = t5a, q5,q7 = t4a
|
|
dmbutterfly_l q2, q3, q13, q14, d12, d13, d8, d9, d1[1], d1[0] @ q2,q3 = t6a, q13,q14 = t7a
|
|
|
|
dbutterfly_n d28, d29, d8, d9, q10, q11, q13, q14, q4, q6, q10, q11 @ q14 = out[6], q4 = t7
|
|
|
|
dmbutterfly0 d22, d23, d24, d25, q9, q12, q6, q13, d12, d13, d26, d27, q9, q10 @ q11 = -out[3], q12 = out[4]
|
|
vneg.s32 q11, q11 @ q11 = out[3]
|
|
|
|
dbutterfly_n d18, d19, d4, d5, q5, q7, q2, q3, q9, q10, q2, q3 @ q9 = -out[1], q2 = t6
|
|
vneg.s32 q9, q9 @ q9 = out[1]
|
|
|
|
dmbutterfly0 d20, d21, d26, d27, q2, q4, q3, q5, d6, d7, d10, d11, q6, q7 @ q10 = out[2], q13 = -out[5]
|
|
vneg.s32 q13, q13 @ q13 = out[5]
|
|
.endm
|
|
|
|
function idct8x8_dc_add_neon
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {d0}, [r12,:64]
|
|
|
|
vmov.i32 q2, #0
|
|
vmovl.s16 q0, d0
|
|
|
|
vld1.32 {d16[]}, [r2,:32]
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vdup.32 q8, d16[0]
|
|
vst1.32 {d4[0]}, [r2,:32]
|
|
|
|
vrshr.s32 q8, q8, #5
|
|
vdup.s16 q15, r8
|
|
|
|
mov r3, r0
|
|
mov r12, #8
|
|
1:
|
|
@ Loop to add the constant from q8 into all 8x8 outputs
|
|
subs r12, r12, #2
|
|
vld1.16 {q2}, [r0,:128], r1
|
|
vaddw.u16 q10, q8, d4
|
|
vld1.16 {q3}, [r0,:128], r1
|
|
vaddw.u16 q11, q8, d5
|
|
vaddw.u16 q12, q8, d6
|
|
vaddw.u16 q13, q8, d7
|
|
vqmovun.s32 d4, q10
|
|
vqmovun.s32 d5, q11
|
|
vqmovun.s32 d6, q12
|
|
vqmovun.s32 d7, q13
|
|
vmin.u16 q2, q2, q15
|
|
vst1.16 {q2}, [r3,:128], r1
|
|
vmin.u16 q3, q3, q15
|
|
vst1.16 {q3}, [r3,:128], r1
|
|
bne 1b
|
|
|
|
pop {r4-r8,pc}
|
|
endfunc
|
|
.ltorg
|
|
|
|
.macro itxfm8_1d_funcs txfm
|
|
@ Read a vertical 4x8 slice out of a 8x8 matrix, do a transform on it,
|
|
@ transpose into a horizontal 8x4 slice and store.
|
|
@ r0 = dst (temp buffer)
|
|
@ r1 = slice offset
|
|
@ r2 = src
|
|
function \txfm\()8_1d_4x8_pass1_neon
|
|
mov r12, #32
|
|
vmov.s32 q2, #0
|
|
.irp i, 8, 9, 10, 11, 12, 13, 14, 15
|
|
vld1.32 {q\i}, [r2,:128]
|
|
vst1.32 {q2}, [r2,:128], r12
|
|
.endr
|
|
|
|
\txfm\()8
|
|
|
|
@ Do two 4x4 transposes. Originally, q8-q15 contain the
|
|
@ 8 rows. Afterwards, q8-q11, q12-q15 contain the transposed
|
|
@ 4x4 blocks.
|
|
transpose32_q_2x_4x4 q8, q9, q10, q11, q12, q13, q14, q15, d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31
|
|
|
|
@ Store the transposed 4x4 blocks horizontally.
|
|
cmp r1, #4
|
|
beq 1f
|
|
.irp i, 8, 12, 9, 13, 10, 14, 11, 15
|
|
vst1.32 {q\i}, [r0,:128]!
|
|
.endr
|
|
bx lr
|
|
1:
|
|
@ Special case: For the last input column (r1 == 4),
|
|
@ which would be stored as the last row in the temp buffer,
|
|
@ don't store the first 4x4 block, but keep it in registers
|
|
@ for the first slice of the second pass (where it is the
|
|
@ last 4x4 block).
|
|
.irp i, 12, 13, 14, 15
|
|
add r0, r0, #16
|
|
vst1.32 {q\i}, [r0,:128]!
|
|
.endr
|
|
vmov q12, q8
|
|
vmov q13, q9
|
|
vmov q14, q10
|
|
vmov q15, q11
|
|
bx lr
|
|
endfunc
|
|
|
|
@ Read a vertical 4x8 slice out of a 8x8 matrix, do a transform on it,
|
|
@ load the destination pixels (from a similar 4x8 slice), add and store back.
|
|
@ r0 = dst
|
|
@ r1 = dst stride
|
|
@ r2 = src (temp buffer)
|
|
@ r3 = slice offset
|
|
function \txfm\()8_1d_4x8_pass2_neon
|
|
mov r12, #32
|
|
.irp i, 8, 9, 10, 11
|
|
vld1.32 {q\i}, [r2,:128], r12
|
|
.endr
|
|
cmp r3, #0
|
|
beq 1f
|
|
.irp i, 12, 13, 14, 15
|
|
vld1.32 {q\i}, [r2,:128], r12
|
|
.endr
|
|
1:
|
|
|
|
add r3, r0, r1
|
|
lsl r1, r1, #1
|
|
\txfm\()8
|
|
|
|
vdup.s16 q4, r8
|
|
.macro load_add_store coef0, coef1, coef2, coef3
|
|
vld1.16 {d4}, [r0,:64], r1
|
|
vld1.16 {d5}, [r3,:64], r1
|
|
vld1.16 {d6}, [r0,:64], r1
|
|
vld1.16 {d7}, [r3,:64], r1
|
|
|
|
vrshr.s32 \coef0, \coef0, #5
|
|
vrshr.s32 \coef1, \coef1, #5
|
|
vrshr.s32 \coef2, \coef2, #5
|
|
vrshr.s32 \coef3, \coef3, #5
|
|
|
|
vaddw.u16 \coef0, \coef0, d4
|
|
vaddw.u16 \coef1, \coef1, d5
|
|
vaddw.u16 \coef2, \coef2, d6
|
|
vaddw.u16 \coef3, \coef3, d7
|
|
|
|
sub r0, r0, r1, lsl #1
|
|
sub r3, r3, r1, lsl #1
|
|
|
|
vqmovun.s32 d4, \coef0
|
|
vqmovun.s32 d5, \coef1
|
|
vqmovun.s32 d6, \coef2
|
|
vqmovun.s32 d7, \coef3
|
|
|
|
vmin.u16 q2, q2, q4
|
|
vmin.u16 q3, q3, q4
|
|
|
|
vst1.16 {d4}, [r0,:64], r1
|
|
vst1.16 {d5}, [r3,:64], r1
|
|
vst1.16 {d6}, [r0,:64], r1
|
|
vst1.16 {d7}, [r3,:64], r1
|
|
.endm
|
|
load_add_store q8, q9, q10, q11
|
|
load_add_store q12, q13, q14, q15
|
|
.purgem load_add_store
|
|
|
|
bx lr
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm8_1d_funcs idct
|
|
itxfm8_1d_funcs iadst
|
|
|
|
.macro itxfm_func8x8 txfm1, txfm2
|
|
function vp9_\txfm1\()_\txfm2\()_8x8_add_16_neon
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp r3, #1
|
|
beq idct8x8_dc_add_neon
|
|
.endif
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
vpush {q4-q7}
|
|
.else
|
|
vpush {q4-q5}
|
|
.endif
|
|
|
|
@ Align the stack, allocate a temp buffer
|
|
T mov r7, sp
|
|
T and r7, r7, #15
|
|
A and r7, sp, #15
|
|
add r7, r7, #256
|
|
sub sp, sp, r7
|
|
|
|
mov r4, r0
|
|
mov r5, r1
|
|
mov r6, r2
|
|
|
|
.ifc \txfm1,idct
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
|
|
.irp i, 0, 4
|
|
add r0, sp, #(\i*32)
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
.if \i == 4
|
|
cmp r3, #12
|
|
ble 1f
|
|
.endif
|
|
.endif
|
|
mov r1, #\i
|
|
add r2, r6, #(\i*4)
|
|
bl \txfm1\()8_1d_4x8_pass1_neon
|
|
.endr
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
b 3f
|
|
1:
|
|
@ For all-zero slices in pass 1, set q12-q15 to zero, for the in-register
|
|
@ passthrough of coefficients to pass 2 and clear the end of the temp buffer
|
|
vmov.i32 q12, #0
|
|
vmov.i32 q13, #0
|
|
vmov.i32 q14, #0
|
|
vmov.i32 q15, #0
|
|
.rept 4
|
|
vst1.32 {q12-q13}, [r0,:128]!
|
|
.endr
|
|
3:
|
|
.endif
|
|
.ifc \txfm1\()_\txfm2,iadst_idct
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
.irp i, 0, 4
|
|
add r0, r4, #(\i*2)
|
|
mov r1, r5
|
|
add r2, sp, #(\i*4)
|
|
mov r3, #\i
|
|
bl \txfm2\()8_1d_4x8_pass2_neon
|
|
.endr
|
|
|
|
add sp, sp, r7
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
vpop {q4-q7}
|
|
.else
|
|
vpop {q4-q5}
|
|
.endif
|
|
pop {r4-r8,pc}
|
|
endfunc
|
|
|
|
function ff_vp9_\txfm1\()_\txfm2\()_8x8_add_10_neon, export=1
|
|
push {r4-r8,lr}
|
|
movw r8, #0x03ff
|
|
b vp9_\txfm1\()_\txfm2\()_8x8_add_16_neon
|
|
endfunc
|
|
|
|
function ff_vp9_\txfm1\()_\txfm2\()_8x8_add_12_neon, export=1
|
|
push {r4-r8,lr}
|
|
movw r8, #0x0fff
|
|
b vp9_\txfm1\()_\txfm2\()_8x8_add_16_neon
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm_func8x8 idct, idct
|
|
itxfm_func8x8 iadst, idct
|
|
itxfm_func8x8 idct, iadst
|
|
itxfm_func8x8 iadst, iadst
|
|
|
|
function idct16x16_dc_add_neon
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {d0}, [r12,:64]
|
|
|
|
vmov.i32 q2, #0
|
|
vmovl.s16 q0, d0
|
|
|
|
vld1.32 {d16[]}, [r2,:32]
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vdup.32 q8, d16[0]
|
|
vst1.32 {d4[0]}, [r2,:32]
|
|
|
|
vrshr.s32 q8, q8, #6
|
|
vdup.s16 q15, r9
|
|
|
|
mov r3, r0
|
|
mov r12, #16
|
|
1:
|
|
@ Loop to add the constant from q8 into all 16x16 outputs
|
|
subs r12, r12, #2
|
|
vld1.16 {q0-q1}, [r0,:128], r1
|
|
vaddw.u16 q9, q8, d0
|
|
vaddw.u16 q10, q8, d1
|
|
vld1.16 {q2-q3}, [r0,:128], r1
|
|
vaddw.u16 q11, q8, d2
|
|
vaddw.u16 q12, q8, d3
|
|
vaddw.u16 q13, q8, d4
|
|
vaddw.u16 q14, q8, d5
|
|
vqmovun.s32 d0, q9
|
|
vaddw.u16 q9, q8, d6
|
|
vqmovun.s32 d1, q10
|
|
vaddw.u16 q10, q8, d7
|
|
vqmovun.s32 d2, q11
|
|
vqmovun.s32 d3, q12
|
|
vqmovun.s32 d4, q13
|
|
vqmovun.s32 d5, q14
|
|
vmin.u16 q0, q0, q15
|
|
vmin.u16 q1, q1, q15
|
|
vqmovun.s32 d6, q9
|
|
vqmovun.s32 d7, q10
|
|
vst1.16 {q0-q1}, [r3,:128], r1
|
|
vmin.u16 q2, q2, q15
|
|
vmin.u16 q3, q3, q15
|
|
vst1.16 {q2-q3}, [r3,:128], r1
|
|
bne 1b
|
|
|
|
pop {r4-r9,pc}
|
|
endfunc
|
|
.ltorg
|
|
|
|
.macro idct16
|
|
mbutterfly0 d16, d24, d16, d24, d8, d10, q4, q5 @ d16 = t0a, d24 = t1a
|
|
mbutterfly d20, d28, d1[0], d1[1], q4, q5 @ d20 = t2a, d28 = t3a
|
|
mbutterfly d18, d30, d2[0], d2[1], q4, q5 @ d18 = t4a, d30 = t7a
|
|
mbutterfly d26, d22, d3[0], d3[1], q4, q5 @ d26 = t5a, d22 = t6a
|
|
mbutterfly d17, d31, d4[0], d4[1], q4, q5 @ d17 = t8a, d31 = t15a
|
|
mbutterfly d25, d23, d5[0], d5[1], q4, q5 @ d25 = t9a, d23 = t14a
|
|
mbutterfly d21, d27, d6[0], d6[1], q4, q5 @ d21 = t10a, d27 = t13a
|
|
mbutterfly d29, d19, d7[0], d7[1], q4, q5 @ d29 = t11a, d19 = t12a
|
|
|
|
butterfly d8, d28, d16, d28 @ d8 = t0, d28 = t3
|
|
butterfly d9, d20, d24, d20 @ d9 = t1, d20 = t2
|
|
butterfly d10, d26, d18, d26 @ d10 = t4, d26 = t5
|
|
butterfly d11, d22, d30, d22 @ d11 = t7, d22 = t6
|
|
butterfly d16, d25, d17, d25 @ d16 = t8, d25 = t9
|
|
butterfly d24, d21, d29, d21 @ d24 = t11, d21 = t10
|
|
butterfly d17, d27, d19, d27 @ d17 = t12, d27 = t13
|
|
butterfly d29, d23, d31, d23 @ d29 = t15, d23 = t14
|
|
|
|
mbutterfly0 d22, d26, d22, d26, d18, d30, q9, q15 @ d22 = t6a, d26 = t5a
|
|
mbutterfly d23, d25, d1[0], d1[1], q9, q15 @ d23 = t9a, d25 = t14a
|
|
mbutterfly d27, d21, d1[0], d1[1], q9, q15, neg=1 @ d27 = t13a, d21 = t10a
|
|
|
|
butterfly d18, d11, d8, d11 @ d18 = t0a, d11 = t7a
|
|
butterfly d19, d22, d9, d22 @ d19 = t1a, d22 = t6
|
|
butterfly d8, d26, d20, d26 @ d8 = t2a, d26 = t5
|
|
butterfly d9, d10, d28, d10 @ d9 = t3a, d10 = t4
|
|
butterfly d20, d28, d16, d24 @ d20 = t8a, d28 = t11a
|
|
butterfly d24, d21, d23, d21 @ d24 = t9, d21 = t10
|
|
butterfly d23, d27, d25, d27 @ d23 = t14, d27 = t13
|
|
butterfly d25, d29, d29, d17 @ d25 = t15a, d29 = t12a
|
|
|
|
mbutterfly0 d27, d21, d27, d21, d16, d30, q8, q15 @ d27 = t13a, d21 = t10a
|
|
mbutterfly0 d29, d28, d29, d28, d16, d30, q8, q15 @ d29 = t12, d28 = t11
|
|
|
|
vswp d27, d29 @ d27 = t12, d29 = t13a
|
|
vswp d28, d27 @ d28 = t12, d27 = t11
|
|
butterfly d16, d31, d18, d25 @ d16 = out[0], d31 = out[15]
|
|
butterfly d17, d30, d19, d23 @ d17 = out[1], d30 = out[14]
|
|
butterfly_r d25, d22, d22, d24 @ d25 = out[9], d22 = out[6]
|
|
butterfly d23, d24, d11, d20 @ d23 = out[7], d24 = out[8]
|
|
butterfly d18, d29, d8, d29 @ d18 = out[2], d29 = out[13]
|
|
butterfly d19, d28, d9, d28 @ d19 = out[3], d28 = out[12]
|
|
vmov d8, d21 @ d8 = t10a
|
|
butterfly d20, d27, d10, d27 @ d20 = out[4], d27 = out[11]
|
|
butterfly d21, d26, d26, d8 @ d21 = out[5], d26 = out[10]
|
|
.endm
|
|
|
|
.macro iadst16
|
|
movrel r12, iadst16_coeffs
|
|
vld1.16 {q0}, [r12,:128]!
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
mbutterfly_l q3, q2, d31, d16, d0[1], d0[0] @ q3 = t1, q2 = t0
|
|
mbutterfly_l q5, q4, d23, d24, d2[1], d2[0] @ q5 = t9, q4 = t8
|
|
butterfly_n d31, d24, q3, q5, q6, q5 @ d31 = t1a, d24 = t9a
|
|
mbutterfly_l q7, q6, d29, d18, d1[1], d1[0] @ q7 = t3, q6 = t2
|
|
butterfly_n d16, d23, q2, q4, q3, q4 @ d16 = t0a, d23 = t8a
|
|
mbutterfly_l q3, q2, d21, d26, d3[1], d3[0] @ q3 = t11, q2 = t10
|
|
|
|
vld1.16 {q0}, [r12,:128]!
|
|
butterfly_n d29, d26, q7, q3, q4, q3 @ d29 = t3a, d26 = t11a
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
mbutterfly_l q5, q4, d27, d20, d0[1], d0[0] @ q5 = t5, q4 = t4
|
|
butterfly_n d18, d21, q6, q2, q3, q2 @ d18 = t2a, d21 = t10a
|
|
|
|
mbutterfly_l q7, q6, d19, d28, d2[1], d2[0] @ q7 = t13, q6 = t12
|
|
butterfly_n d20, d28, q5, q7, q2, q7 @ d20 = t5a, d28 = t13a
|
|
mbutterfly_l q3, q2, d25, d22, d1[1], d1[0] @ q3 = t7, q2 = t6
|
|
butterfly_n d27, d19, q4, q6, q5, q6 @ d27 = t4a, d19 = t12a
|
|
|
|
mbutterfly_l q5, q4, d17, d30, d3[1], d3[0] @ q5 = t15, q4 = t14
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
butterfly_n d22, d30, q3, q5, q6, q5 @ d22 = t7a, d30 = t15a
|
|
mbutterfly_l q7, q6, d23, d24, d2[0], d2[1] @ q7 = t9, q6 = t8
|
|
butterfly_n d25, d17, q2, q4, q3, q4 @ d25 = t6a, d17 = t14a
|
|
|
|
mbutterfly_l q2, q3, d28, d19, d2[1], d2[0] @ q2 = t12, q3 = t13
|
|
butterfly_n d23, d19, q6, q2, q4, q2 @ d23 = t8a, d19 = t12a
|
|
mbutterfly_l q5, q4, d21, d26, d3[0], d3[1] @ q5 = t11, q4 = t10
|
|
butterfly_r d4, d27, d16, d27 @ d4 = t4, d27 = t0
|
|
butterfly_n d24, d28, q7, q3, q6, q3 @ d24 = t9a, d28 = t13a
|
|
|
|
mbutterfly_l q6, q7, d30, d17, d3[1], d3[0] @ q6 = t14, q7 = t15
|
|
butterfly_r d5, d20, d31, d20 @ d5 = t5, d20 = t1
|
|
butterfly_n d21, d17, q4, q6, q3, q6 @ d21 = t10a, d17 = t14a
|
|
butterfly_n d26, d30, q5, q7, q4, q7 @ d26 = t11a, d30 = t15a
|
|
|
|
butterfly_r d6, d25, d18, d25 @ d6 = t6, d25 = t2
|
|
butterfly_r d7, d22, d29, d22 @ d7 = t7, d22 = t3
|
|
|
|
mbutterfly_l q5, q4, d19, d28, d1[0], d1[1] @ q5 = t13, q4 = t12
|
|
mbutterfly_l q6, q7, d30, d17, d1[1], d1[0] @ q6 = t14, q7 = t15
|
|
|
|
butterfly_n d18, d30, q4, q6, q8, q6 @ d18 = out[2], d30 = t14a
|
|
butterfly_n d29, d17, q5, q7, q6, q7 @ d29 = -out[13], d17 = t15a
|
|
vneg.s32 d29, d29 @ d29 = out[13]
|
|
|
|
mbutterfly_l q5, q4, d4, d5, d1[0], d1[1] @ q5 = t5a, q4 = t4a
|
|
mbutterfly_l q6, q7, d7, d6, d1[1], d1[0] @ q6 = t6a, q7 = t7a
|
|
|
|
butterfly d2, d6, d27, d25 @ d2 = out[0], d6 = t2a
|
|
butterfly d3, d7, d23, d21 @ d3 =-out[1], d7 = t10
|
|
|
|
butterfly_n d19, d31, q4, q6, q2, q4 @ d19 = -out[3], d31 = t6
|
|
vneg.s32 d19, d19 @ d19 = out[3]
|
|
butterfly_n d28, d16, q5, q7, q2, q5 @ d28 = out[12], d16 = t7
|
|
|
|
butterfly d5, d8, d20, d22 @ d5 =-out[15],d8 = t3a
|
|
butterfly d4, d9, d24, d26 @ d4 = out[14],d9 = t11
|
|
|
|
mbutterfly0 d23, d24, d6, d8, d10, d11, q6, q7, 1 @ d23 = out[7], d24 = out[8]
|
|
mbutterfly0 d20, d27, d16, d31, d10, d11, q6, q7 @ d20 = out[4], d27 = out[11]
|
|
mbutterfly0 d22, d25, d9, d7, d10, d11, q6, q7 @ d22 = out[6], d25 = out[9]
|
|
mbutterfly0 d21, d26, d30, d17, d10, d11, q6, q7, 1 @ d21 = out[5], d26 = out[10]
|
|
|
|
vneg.s32 d31, d5 @ d31 = out[15]
|
|
vneg.s32 d17, d3 @ d17 = out[1]
|
|
|
|
vmov d16, d2
|
|
vmov d30, d4
|
|
.endm
|
|
|
|
.macro itxfm16_1d_funcs txfm
|
|
@ Read a vertical 2x16 slice out of a 16x16 matrix, do a transform on it,
|
|
@ transpose into a horizontal 16x2 slice and store.
|
|
@ r0 = dst (temp buffer)
|
|
@ r2 = src
|
|
function \txfm\()16_1d_2x16_pass1_neon
|
|
mov r12, #64
|
|
vmov.s32 q4, #0
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.32 {d\i}, [r2,:64]
|
|
vst1.32 {d8}, [r2,:64], r12
|
|
.endr
|
|
|
|
\txfm\()16
|
|
|
|
@ Do eight 2x2 transposes. Originally, d16-d31 contain the
|
|
@ 16 rows. Afterwards, d16-d17, d18-d19 etc contain the eight
|
|
@ transposed 2x2 blocks.
|
|
transpose32_8x_2x2 d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31
|
|
|
|
@ Store the transposed 2x2 blocks horizontally.
|
|
.irp i, 16, 18, 20, 22, 24, 26, 28, 30, 17, 19, 21, 23, 25, 27, 29, 31
|
|
vst1.32 {d\i}, [r0,:64]!
|
|
.endr
|
|
bx lr
|
|
endfunc
|
|
|
|
@ Read a vertical 2x16 slice out of a 16x16 matrix, do a transform on it,
|
|
@ load the destination pixels (from a similar 2x16 slice), add and store back.
|
|
@ r0 = dst
|
|
@ r1 = dst stride
|
|
@ r2 = src (temp buffer)
|
|
function \txfm\()16_1d_2x16_pass2_neon
|
|
mov r12, #64
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.16 {d\i}, [r2,:64], r12
|
|
.endr
|
|
|
|
add r3, r0, r1
|
|
lsl r1, r1, #1
|
|
\txfm\()16
|
|
|
|
.macro load_add_store coef0, coef1, coef2, coef3
|
|
vrshr.s32 \coef0, \coef0, #6
|
|
vrshr.s32 \coef1, \coef1, #6
|
|
|
|
vld1.32 {d8[]}, [r0,:32], r1
|
|
vld1.32 {d8[1]}, [r3,:32], r1
|
|
vrshr.s32 \coef2, \coef2, #6
|
|
vrshr.s32 \coef3, \coef3, #6
|
|
vld1.32 {d9[]}, [r0,:32], r1
|
|
vld1.32 {d9[1]}, [r3,:32], r1
|
|
vaddw.u16 \coef0, \coef0, d8
|
|
vld1.32 {d10[]}, [r0,:32], r1
|
|
vld1.32 {d10[1]}, [r3,:32], r1
|
|
vaddw.u16 \coef1, \coef1, d9
|
|
vld1.32 {d11[]}, [r0,:32], r1
|
|
vld1.32 {d11[1]}, [r3,:32], r1
|
|
|
|
vqmovun.s32 d8, \coef0
|
|
vdup.s16 q8, r9
|
|
vqmovun.s32 d9, \coef1
|
|
sub r0, r0, r1, lsl #2
|
|
sub r3, r3, r1, lsl #2
|
|
vaddw.u16 \coef2, \coef2, d10
|
|
vaddw.u16 \coef3, \coef3, d11
|
|
vmin.u16 q4, q4, q8
|
|
vst1.32 {d8[0]}, [r0,:32], r1
|
|
vst1.32 {d8[1]}, [r3,:32], r1
|
|
vqmovun.s32 d10, \coef2
|
|
vst1.32 {d9[0]}, [r0,:32], r1
|
|
vst1.32 {d9[1]}, [r3,:32], r1
|
|
vqmovun.s32 d11, \coef3
|
|
vmin.u16 q5, q5, q8
|
|
|
|
vst1.32 {d10[0]}, [r0,:32], r1
|
|
vst1.32 {d10[1]}, [r3,:32], r1
|
|
vst1.32 {d11[0]}, [r0,:32], r1
|
|
vst1.32 {d11[1]}, [r3,:32], r1
|
|
.endm
|
|
load_add_store q8, q9, q10, q11
|
|
load_add_store q12, q13, q14, q15
|
|
.purgem load_add_store
|
|
|
|
bx lr
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm16_1d_funcs idct
|
|
itxfm16_1d_funcs iadst
|
|
|
|
@ This is the minimum eob value for each subpartition, in increments of 2
|
|
const min_eob_idct_idct_16, align=4
|
|
.short 0, 3, 10, 22, 38, 62, 89, 121
|
|
endconst
|
|
|
|
.macro itxfm_func16x16 txfm1, txfm2
|
|
function vp9_\txfm1\()_\txfm2\()_16x16_add_16_neon
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
cmp r3, #1
|
|
beq idct16x16_dc_add_neon
|
|
.endif
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
vpush {q4-q7}
|
|
.else
|
|
vpush {q4-q5}
|
|
movrel r8, min_eob_idct_idct_16 + 2
|
|
.endif
|
|
|
|
@ Align the stack, allocate a temp buffer
|
|
T mov r7, sp
|
|
T and r7, r7, #15
|
|
A and r7, sp, #15
|
|
add r7, r7, #1024
|
|
sub sp, sp, r7
|
|
|
|
mov r4, r0
|
|
mov r5, r1
|
|
mov r6, r2
|
|
|
|
.ifc \txfm1,idct
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0-q1}, [r12,:128]
|
|
vmovl.s16 q2, d2
|
|
vmovl.s16 q3, d3
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
|
|
.irp i, 0, 2, 4, 6, 8, 10, 12, 14
|
|
add r0, sp, #(\i*64)
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
.if \i > 0
|
|
ldrh_post r1, r8, #2
|
|
cmp r3, r1
|
|
it le
|
|
movle r1, #(16 - \i)/2
|
|
ble 1f
|
|
.endif
|
|
.endif
|
|
add r2, r6, #(\i*4)
|
|
bl \txfm1\()16_1d_2x16_pass1_neon
|
|
.endr
|
|
|
|
.ifc \txfm1\()_\txfm2,idct_idct
|
|
b 3f
|
|
1:
|
|
vmov.i16 q14, #0
|
|
vmov.i16 q15, #0
|
|
2:
|
|
subs r1, r1, #1
|
|
@ Unroll for 2 lines
|
|
.rept 2
|
|
@ Fill one line with zeros
|
|
vst1.32 {q14-q15}, [r0,:128]!
|
|
vst1.32 {q14-q15}, [r0,:128]!
|
|
.endr
|
|
bne 2b
|
|
3:
|
|
.endif
|
|
|
|
.ifc \txfm1\()_\txfm2,iadst_idct
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0-q1}, [r12,:128]
|
|
vmovl.s16 q2, d2
|
|
vmovl.s16 q3, d3
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
.endif
|
|
.irp i, 0, 2, 4, 6, 8, 10, 12, 14
|
|
add r0, r4, #(\i*2)
|
|
mov r1, r5
|
|
add r2, sp, #(\i*4)
|
|
bl \txfm2\()16_1d_2x16_pass2_neon
|
|
.endr
|
|
|
|
add sp, sp, r7
|
|
.ifnc \txfm1\()_\txfm2,idct_idct
|
|
vpop {q4-q7}
|
|
.else
|
|
vpop {q4-q5}
|
|
.endif
|
|
pop {r4-r9,pc}
|
|
endfunc
|
|
|
|
function ff_vp9_\txfm1\()_\txfm2\()_16x16_add_10_neon, export=1
|
|
push {r4-r9,lr}
|
|
movw r9, #0x03ff
|
|
b vp9_\txfm1\()_\txfm2\()_16x16_add_16_neon
|
|
endfunc
|
|
|
|
function ff_vp9_\txfm1\()_\txfm2\()_16x16_add_12_neon, export=1
|
|
push {r4-r9,lr}
|
|
movw r9, #0x0fff
|
|
b vp9_\txfm1\()_\txfm2\()_16x16_add_16_neon
|
|
endfunc
|
|
.endm
|
|
|
|
itxfm_func16x16 idct, idct
|
|
itxfm_func16x16 iadst, idct
|
|
itxfm_func16x16 idct, iadst
|
|
itxfm_func16x16 iadst, iadst
|
|
.ltorg
|
|
|
|
|
|
function idct32x32_dc_add_neon
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {d0}, [r12,:64]
|
|
|
|
vmov.i32 q2, #0
|
|
vmovl.s16 q0, d0
|
|
|
|
vld1.32 {d16[]}, [r2,:32]
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vmull.s32 q8, d16, d0[0]
|
|
vrshrn.s64 d16, q8, #14
|
|
vdup.32 q8, d16[0]
|
|
vst1.32 {d4[0]}, [r2,:32]
|
|
|
|
vrshr.s32 q8, q8, #6
|
|
vdup.s16 q15, r9
|
|
|
|
mov r3, r0
|
|
mov r12, #32
|
|
sub r1, r1, #32
|
|
1:
|
|
@ Loop to add the constant from q8 into all 32x32 outputs
|
|
subs r12, r12, #1
|
|
vld1.16 {q0-q1}, [r0,:128]!
|
|
vaddw.u16 q9, q8, d0
|
|
vaddw.u16 q10, q8, d1
|
|
vld1.16 {q2-q3}, [r0,:128], r1
|
|
vaddw.u16 q11, q8, d2
|
|
vaddw.u16 q12, q8, d3
|
|
vaddw.u16 q13, q8, d4
|
|
vaddw.u16 q14, q8, d5
|
|
vqmovun.s32 d0, q9
|
|
vaddw.u16 q9, q8, d6
|
|
vqmovun.s32 d1, q10
|
|
vaddw.u16 q10, q8, d7
|
|
vqmovun.s32 d2, q11
|
|
vqmovun.s32 d3, q12
|
|
vqmovun.s32 d4, q13
|
|
vqmovun.s32 d5, q14
|
|
vmin.u16 q0, q0, q15
|
|
vmin.u16 q1, q1, q15
|
|
vqmovun.s32 d6, q9
|
|
vqmovun.s32 d7, q10
|
|
vst1.16 {q0-q1}, [r3,:128]!
|
|
vmin.u16 q2, q2, q15
|
|
vmin.u16 q3, q3, q15
|
|
vst1.16 {q2-q3}, [r3,:128], r1
|
|
bne 1b
|
|
|
|
pop {r4-r9,pc}
|
|
endfunc
|
|
|
|
.macro idct32_odd
|
|
movrel r12, idct_coeffs
|
|
add r12, r12, #32
|
|
vld1.16 {q0-q1}, [r12,:128]
|
|
vmovl.s16 q2, d2
|
|
vmovl.s16 q3, d3
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
mbutterfly d16, d31, d0[0], d0[1], q4, q5 @ d16 = t16a, d31 = t31a
|
|
mbutterfly d24, d23, d1[0], d1[1], q4, q5 @ d24 = t17a, d23 = t30a
|
|
mbutterfly d20, d27, d2[0], d2[1], q4, q5 @ d20 = t18a, d27 = t29a
|
|
mbutterfly d28, d19, d3[0], d3[1], q4, q5 @ d28 = t19a, d19 = t28a
|
|
mbutterfly d18, d29, d4[0], d4[1], q4, q5 @ d18 = t20a, d29 = t27a
|
|
mbutterfly d26, d21, d5[0], d5[1], q4, q5 @ d26 = t21a, d21 = t26a
|
|
mbutterfly d22, d25, d6[0], d6[1], q4, q5 @ d22 = t22a, d25 = t25a
|
|
mbutterfly d30, d17, d7[0], d7[1], q4, q5 @ d30 = t23a, d17 = t24a
|
|
|
|
sub r12, r12, #32
|
|
vld1.16 {q0}, [r12,:128]
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
butterfly d4, d24, d16, d24 @ d4 = t16, d24 = t17
|
|
butterfly d5, d20, d28, d20 @ d5 = t19, d20 = t18
|
|
butterfly d6, d26, d18, d26 @ d6 = t20, d26 = t21
|
|
butterfly d7, d22, d30, d22 @ d7 = t23, d22 = t22
|
|
butterfly d28, d25, d17, d25 @ d28 = t24, d25 = t25
|
|
butterfly d30, d21, d29, d21 @ d30 = t27, d21 = t26
|
|
butterfly d29, d23, d31, d23 @ d29 = t31, d23 = t30
|
|
butterfly d31, d27, d19, d27 @ d31 = t28, d27 = t29
|
|
|
|
mbutterfly d23, d24, d2[0], d2[1], q8, q9 @ d23 = t17a, d24 = t30a
|
|
mbutterfly d27, d20, d2[0], d2[1], q8, q9, neg=1 @ d27 = t29a, d20 = t18a
|
|
mbutterfly d21, d26, d3[0], d3[1], q8, q9 @ d21 = t21a, d26 = t26a
|
|
mbutterfly d25, d22, d3[0], d3[1], q8, q9, neg=1 @ d25 = t25a, d22 = t22a
|
|
|
|
butterfly d16, d5, d4, d5 @ d16 = t16a, d5 = t19a
|
|
butterfly d17, d20, d23, d20 @ d17 = t17, d20 = t18
|
|
butterfly d18, d6, d7, d6 @ d18 = t23a, d6 = t20a
|
|
butterfly d19, d21, d22, d21 @ d19 = t22, d21 = t21
|
|
butterfly d4, d28, d28, d30 @ d4 = t24a, d28 = t27a
|
|
butterfly d23, d26, d25, d26 @ d23 = t25, d26 = t26
|
|
butterfly d7, d29, d29, d31 @ d7 = t31a, d29 = t28a
|
|
butterfly d22, d27, d24, d27 @ d22 = t30, d27 = t29
|
|
|
|
mbutterfly d27, d20, d1[0], d1[1], q12, q15 @ d27 = t18a, d20 = t29a
|
|
mbutterfly d29, d5, d1[0], d1[1], q12, q15 @ d29 = t19, d5 = t28
|
|
mbutterfly d28, d6, d1[0], d1[1], q12, q15, neg=1 @ d28 = t27, d6 = t20
|
|
mbutterfly d26, d21, d1[0], d1[1], q12, q15, neg=1 @ d26 = t26a, d21 = t21a
|
|
|
|
butterfly d31, d24, d7, d4 @ d31 = t31, d24 = t24
|
|
butterfly d30, d25, d22, d23 @ d30 = t30a, d25 = t25a
|
|
butterfly_r d23, d16, d16, d18 @ d23 = t23, d16 = t16
|
|
butterfly_r d22, d17, d17, d19 @ d22 = t22a, d17 = t17a
|
|
butterfly d18, d21, d27, d21 @ d18 = t18, d21 = t21
|
|
butterfly_r d27, d28, d5, d28 @ d27 = t27a, d28 = t28a
|
|
butterfly d4, d26, d20, d26 @ d4 = t29, d26 = t26
|
|
butterfly d19, d20, d29, d6 @ d19 = t19a, d20 = t20
|
|
vmov d29, d4 @ d29 = t29
|
|
|
|
mbutterfly0 d27, d20, d27, d20, d4, d6, q2, q3 @ d27 = t27, d20 = t20
|
|
mbutterfly0 d26, d21, d26, d21, d4, d6, q2, q3 @ d26 = t26a, d21 = t21a
|
|
mbutterfly0 d25, d22, d25, d22, d4, d6, q2, q3 @ d25 = t25, d22 = t22
|
|
mbutterfly0 d24, d23, d24, d23, d4, d6, q2, q3 @ d24 = t24a, d23 = t23a
|
|
.endm
|
|
|
|
@ Do an 32-point IDCT of a 2x32 slice out of a 32x32 matrix.
|
|
@ We don't have register space to do a single pass IDCT of 2x32 though,
|
|
@ but 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.
|
|
@ r0 = dst (temp buffer)
|
|
@ r1 = unused
|
|
@ r2 = src
|
|
function idct32_1d_2x32_pass1_neon
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0-q1}, [r12,:128]
|
|
vmovl.s16 q2, d2
|
|
vmovl.s16 q3, d3
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
@ Double stride of the input, since we only read every other line
|
|
mov r12, #256
|
|
vmov.s32 d8, #0
|
|
|
|
@ d16 = IN(0), d17 = IN(2) ... d31 = IN(30)
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.32 {d\i}, [r2,:64]
|
|
vst1.32 {d8}, [r2,:64], r12
|
|
.endr
|
|
|
|
idct16
|
|
|
|
@ Do eight 2x2 transposes. Originally, d16-d31 contain the
|
|
@ 16 rows. Afterwards, d16-d17, d18-d19 etc contain the eight
|
|
@ transposed 2x2 blocks.
|
|
transpose32_8x_2x2 d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31
|
|
|
|
@ Store the registers a, b, c, d, e, f, g, h horizontally, followed
|
|
@ by the same registers h, g, f, e, d, c, b, a mirrored.
|
|
.macro store_rev a, b, c, d, e, f, g, h
|
|
.irp i, \a, \b, \c, \d, \e, \f, \g, \h
|
|
vst1.32 {d\i}, [r0,:64]!
|
|
vrev64.32 d\i, d\i
|
|
.endr
|
|
.irp i, \h, \g, \f, \e, \d, \c, \b, \a
|
|
vst1.32 {d\i}, [r0,:64]!
|
|
.endr
|
|
.endm
|
|
store_rev 16, 18, 20, 22, 24, 26, 28, 30
|
|
store_rev 17, 19, 21, 23, 25, 27, 29, 31
|
|
sub r0, r0, #256
|
|
.purgem store_rev
|
|
|
|
@ Move r2 back to the start of the input, and move
|
|
@ to the first odd row
|
|
sub r2, r2, r12, lsl #4
|
|
add r2, r2, #128
|
|
|
|
vmov.s32 d4, #0
|
|
@ d16 = IN(1), d17 = IN(3) ... d31 = IN(31)
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.16 {d\i}, [r2,:64]
|
|
vst1.16 {d4}, [r2,:64], r12
|
|
.endr
|
|
|
|
idct32_odd
|
|
|
|
transpose32_8x_2x2 d31, d30, d29, d28, d27, d26, d25, d24, d23, d22, d21, d20, d19, d18, d17, d16
|
|
|
|
@ Store the registers a, b, c, d, e, f, g, h horizontally,
|
|
@ adding into the output first, and then mirrored, subtracted
|
|
@ from the output.
|
|
.macro store_rev a, b, c, d, e, f, g, h
|
|
.irp i, \a, \b, \c, \d, \e, \f, \g, \h
|
|
vld1.32 {d4}, [r0,:64]
|
|
vadd.s32 d4, d4, d\i
|
|
vst1.32 {d4}, [r0,:64]!
|
|
vrev64.32 d\i, d\i
|
|
.endr
|
|
.irp i, \h, \g, \f, \e, \d, \c, \b, \a
|
|
vld1.32 {d4}, [r0,:64]
|
|
vsub.s32 d4, d4, d\i
|
|
vst1.32 {d4}, [r0,:64]!
|
|
.endr
|
|
.endm
|
|
|
|
store_rev 31, 29, 27, 25, 23, 21, 19, 17
|
|
store_rev 30, 28, 26, 24, 22, 20, 18, 16
|
|
.purgem store_rev
|
|
bx lr
|
|
endfunc
|
|
.ltorg
|
|
|
|
@ This is mostly the same as 2x32_pass1, but without the transpose,
|
|
@ and use the source as temp buffer between the two idct passes, and
|
|
@ add into the destination.
|
|
@ r0 = dst
|
|
@ r1 = dst stride
|
|
@ r2 = src (temp buffer)
|
|
function idct32_1d_2x32_pass2_neon
|
|
movrel r12, idct_coeffs
|
|
vld1.16 {q0-q1}, [r12,:128]
|
|
vmovl.s16 q2, d2
|
|
vmovl.s16 q3, d3
|
|
vmovl.s16 q1, d1
|
|
vmovl.s16 q0, d0
|
|
|
|
mov r12, #256
|
|
@ d16 = IN(0), d17 = IN(2) ... d31 = IN(30)
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.32 {d\i}, [r2,:64], r12
|
|
.endr
|
|
sub r2, r2, r12, lsl #4
|
|
|
|
idct16
|
|
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vst1.32 {d\i}, [r2,:64], r12
|
|
.endr
|
|
|
|
sub r2, r2, r12, lsl #4
|
|
add r2, r2, #128
|
|
|
|
@ d16 = IN(1), d17 = IN(3) ... d31 = IN(31)
|
|
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
|
vld1.32 {d\i}, [r2,:64], r12
|
|
.endr
|
|
sub r2, r2, r12, lsl #4
|
|
sub r2, r2, #128
|
|
|
|
idct32_odd
|
|
|
|
mov r12, #256
|
|
vdup.s16 q4, r9
|
|
.macro load_acc_store a, b, c, d, neg=0
|
|
vld1.32 {d4}, [r2,:64], r12
|
|
vld1.32 {d5}, [r2,:64], r12
|
|
.if \neg == 0
|
|
vadd.s32 d4, d4, d\a
|
|
vld1.32 {d6}, [r2,:64], r12
|
|
vadd.s32 d5, d5, d\b
|
|
vld1.32 {d7}, [r2,:64], r12
|
|
vadd.s32 d6, d6, d\c
|
|
vadd.s32 d7, d7, d\d
|
|
.else
|
|
vsub.s32 d4, d4, d\a
|
|
vld1.32 {d6}, [r2,:64], r12
|
|
vsub.s32 d5, d5, d\b
|
|
vld1.32 {d7}, [r2,:64], r12
|
|
vsub.s32 d6, d6, d\c
|
|
vsub.s32 d7, d7, d\d
|
|
.endif
|
|
vld1.32 {d2[]}, [r0,:32], r1
|
|
vld1.32 {d2[1]}, [r0,:32], r1
|
|
vrshr.s32 q2, q2, #6
|
|
vld1.32 {d3[]}, [r0,:32], r1
|
|
vrshr.s32 q3, q3, #6
|
|
vld1.32 {d3[1]}, [r0,:32], r1
|
|
sub r0, r0, r1, lsl #2
|
|
vaddw.u16 q2, q2, d2
|
|
vaddw.u16 q3, q3, d3
|
|
vqmovun.s32 d4, q2
|
|
vqmovun.s32 d5, q3
|
|
vmin.u16 q2, q2, q4
|
|
vst1.32 {d4[0]}, [r0,:32], r1
|
|
vst1.32 {d4[1]}, [r0,:32], r1
|
|
vst1.32 {d5[0]}, [r0,:32], r1
|
|
vst1.32 {d5[1]}, [r0,:32], r1
|
|
.endm
|
|
load_acc_store 31, 30, 29, 28
|
|
load_acc_store 27, 26, 25, 24
|
|
load_acc_store 23, 22, 21, 20
|
|
load_acc_store 19, 18, 17, 16
|
|
sub r2, r2, r12
|
|
neg r12, r12
|
|
load_acc_store 16, 17, 18, 19, 1
|
|
load_acc_store 20, 21, 22, 23, 1
|
|
load_acc_store 24, 25, 26, 27, 1
|
|
load_acc_store 28, 29, 30, 31, 1
|
|
.purgem load_acc_store
|
|
bx lr
|
|
endfunc
|
|
|
|
const min_eob_idct_idct_32, align=4
|
|
.short 0, 3, 9, 21, 34, 51, 70, 98, 135, 176, 240, 258, 336, 357, 448, 472
|
|
endconst
|
|
|
|
function vp9_idct_idct_32x32_add_16_neon
|
|
cmp r3, #1
|
|
beq idct32x32_dc_add_neon
|
|
vpush {q4-q5}
|
|
movrel r8, min_eob_idct_idct_32 + 2
|
|
|
|
@ Align the stack, allocate a temp buffer
|
|
T mov r7, sp
|
|
T and r7, r7, #15
|
|
A and r7, sp, #15
|
|
add r7, r7, #4096
|
|
sub sp, sp, r7
|
|
|
|
mov r4, r0
|
|
mov r5, r1
|
|
mov r6, r2
|
|
|
|
.irp i, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
|
|
add r0, sp, #(\i*128)
|
|
.if \i > 0
|
|
ldrh_post r1, r8, #2
|
|
cmp r3, r1
|
|
it le
|
|
movle r1, #(32 - \i)/2
|
|
ble 1f
|
|
.endif
|
|
add r2, r6, #(\i*4)
|
|
bl idct32_1d_2x32_pass1_neon
|
|
.endr
|
|
b 3f
|
|
|
|
1:
|
|
@ Write zeros to the temp buffer for pass 2
|
|
vmov.i16 q14, #0
|
|
vmov.i16 q15, #0
|
|
2:
|
|
subs r1, r1, #1
|
|
.rept 2
|
|
@ Fill one line with zeros
|
|
vst1.16 {q14-q15}, [r0,:128]!
|
|
vst1.16 {q14-q15}, [r0,:128]!
|
|
vst1.16 {q14-q15}, [r0,:128]!
|
|
vst1.16 {q14-q15}, [r0,:128]!
|
|
.endr
|
|
bne 2b
|
|
3:
|
|
.irp i, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
|
|
add r0, r4, #(\i*2)
|
|
mov r1, r5
|
|
add r2, sp, #(\i*4)
|
|
bl idct32_1d_2x32_pass2_neon
|
|
.endr
|
|
|
|
add sp, sp, r7
|
|
vpop {q4-q5}
|
|
pop {r4-r9,pc}
|
|
endfunc
|
|
|
|
function ff_vp9_idct_idct_32x32_add_10_neon, export=1
|
|
push {r4-r9,lr}
|
|
movw r9, #0x03ff
|
|
b vp9_idct_idct_32x32_add_16_neon
|
|
endfunc
|
|
|
|
function ff_vp9_idct_idct_32x32_add_12_neon, export=1
|
|
push {r4-r9,lr}
|
|
movw r9, #0x0fff
|
|
b vp9_idct_idct_32x32_add_16_neon
|
|
endfunc
|