ref: cf4b381ac772978b3179657475b9fdfb8b17c629
dir: /src/arm/64/itx.S/
/******************************************************************************
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2019, Martin Storsjo
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include "src/arm/asm.S"
#include "util.S"
// The exported functions in this file have got the following signature:
// void itxfm_add(pixel *dst, ptrdiff_t dst_stride, coef *coeff, int eob);
// Most of the functions use the following register layout:
// x0-x3 external parameters
// x4 function pointer to first transform
// x5 function pointer to second transform
// x6 output parameter for helper function
// x7 input parameter for helper function
// x8 input stride for helper function
// x9-x12 scratch variables for helper functions
// x13 pointer to list of eob thresholds
// x14 return pointer for helper function
// x15 return pointer for main function
// The SIMD registers most often use the following layout:
// v0-v1 multiplication coefficients
// v2-v7 scratch registers
// v8-v15 unused
// v16-v31 inputs/outputs of transforms
// Potential further optimizations, that are left unimplemented for now:
// - Trying to keep multiplication coefficients in registers across multiple
// transform functions. (The register layout is designed to potentially
// allow this.)
// - Use a simplified version of the transforms themselves for cases where
// we know a significant number of inputs are zero. E.g. if the eob value
// indicates only a quarter of input values are set, for idct16 and up,
// a significant amount of calculation can be skipped, at the cost of more
// code duplication and special casing.
// - Special case functions for e.g. more combinations with identity.
const idct_coeffs, align=4
// idct4
.short 2896, 2896*8, 1567, 3784
// idct8
.short 799, 4017, 3406, 2276
// idct16
.short 401, 4076, 3166, 2598
.short 1931, 3612, 3920, 1189
// idct32
.short 201, 4091, 3035, 2751
.short 1751, 3703, 3857, 1380
.short 995, 3973, 3513, 2106
.short 2440, 3290, 4052, 601
endconst
const idct64_coeffs, align=4
.short 101*8, 4095*8, 2967*8, -2824*8
.short 1660*8, 3745*8, 3822*8, -1474*8
.short 4076, 401, 4017, 799
.short 0, 0, 0, 0
.short 4036*8, -700*8, 2359*8, 3349*8
.short 3461*8, -2191*8, 897*8, 3996*8
.short -3166, -2598, -799, -4017
.short 0, 0, 0, 0
.short 501*8, 4065*8, 3229*8, -2520*8
.short 2019*8, 3564*8, 3948*8, -1092*8
.short 3612, 1931, 2276, 3406
.short 0, 0, 0, 0
.short 4085*8, -301*8, 2675*8, 3102*8
.short 3659*8, -1842*8, 1285*8, 3889*8
.short -3920, -1189, -3406, -2276
.short 0, 0, 0, 0
endconst
const iadst4_coeffs, align=4
// .h[4-5] can be interpreted as .s[2]
.short 1321, 3803, 2482, 3344, 3344, 0
endconst
const iadst8_coeffs, align=4
.short 4076, 401, 3612, 1931
.short 2598, 3166, 1189, 3920
// idct_coeffs
.short 2896, 2896*8, 1567, 3784, 0, 0, 0, 0
endconst
const iadst16_coeffs, align=4
.short 4091, 201, 3973, 995
.short 3703, 1751, 3290, 2440
.short 2751, 3035, 2106, 3513
.short 1380, 3857, 601, 4052
endconst
.macro smull_smlal d0, d1, s0, s1, c0, c1, sz
smull \d0\().4s, \s0\().4h, \c0
smlal \d0\().4s, \s1\().4h, \c1
.ifc \sz, .8h
smull2 \d1\().4s, \s0\().8h, \c0
smlal2 \d1\().4s, \s1\().8h, \c1
.endif
.endm
.macro smull_smlsl d0, d1, s0, s1, c0, c1, sz
smull \d0\().4s, \s0\().4h, \c0
smlsl \d0\().4s, \s1\().4h, \c1
.ifc \sz, .8h
smull2 \d1\().4s, \s0\().8h, \c0
smlsl2 \d1\().4s, \s1\().8h, \c1
.endif
.endm
.macro smull_sz d0, d1, s0, c, sz
smull \d0\().4s, \s0\().4h, \c
.ifc \sz, .8h
smull2 \d1\().4s, \s0\().8h, \c
.endif
.endm
.macro rshrn_sz d0, s0, s1, shift, sz
rshrn \d0\().4h, \s0\().4s, \shift
.ifc \sz, .8h
rshrn2 \d0\().8h, \s1\().4s, \shift
.endif
.endm
.macro scale_input sz, c, r0, r1, r2 r3, r4, r5, r6, r7
sqrdmulh \r0\sz, \r0\sz, \c
sqrdmulh \r1\sz, \r1\sz, \c
sqrdmulh \r2\sz, \r2\sz, \c
sqrdmulh \r3\sz, \r3\sz, \c
.ifnb \r4
sqrdmulh \r4\sz, \r4\sz, \c
sqrdmulh \r5\sz, \r5\sz, \c
sqrdmulh \r6\sz, \r6\sz, \c
sqrdmulh \r7\sz, \r7\sz, \c
.endif
.endm
.macro scale_wide sz, c, r0, r1, r2 r3, r4, r5, r6, r7
smull_sz v2, v3, \r0, \c, \sz
smull_sz v4, v5, \r1, \c, \sz
smull_sz v6, v7, \r2, \c, \sz
rshrn_sz \r0, v2, v3, #12, \sz
smull_sz v2, v3, \r3, \c, \sz
rshrn_sz \r1, v4, v5, #12, \sz
.ifnb \r4
smull_sz v4, v5, \r4, \c, \sz
.endif
rshrn_sz \r2, v6, v7, #12, \sz
.ifnb \r4
smull_sz v6, v7, \r5, \c, \sz
.endif
rshrn_sz \r3, v2, v3, #12, \sz
.ifnb \r4
smull_sz v2, v3, \r6, \c, \sz
rshrn_sz \r4, v4, v5, #12, \sz
smull_sz v4, v5, \r7, \c, \sz
rshrn_sz \r5, v6, v7, #12, \sz
rshrn_sz \r6, v2, v3, #12, \sz
rshrn_sz \r7, v4, v5, #12, \sz
.endif
.endm
.macro load_add_store load, shift, addsrc, adddst, narrowsrc, narrowdst, store, dst, src, shiftbits=4
.ifnb \load
ld1 {\load}, [\src], x1
.endif
.ifnb \shift
srshr \shift, \shift, #\shiftbits
.endif
.ifnb \addsrc
uaddw \adddst, \adddst, \addsrc
.endif
.ifnb \narrowsrc
sqxtun \narrowdst, \narrowsrc
.endif
.ifnb \store
st1 {\store}, [\dst], x1
.endif
.endm
.macro load_add_store_8x16 dst, src
mov \src, \dst
load_add_store v2.8b, v16.8h, , , , , , \dst, \src
load_add_store v3.8b, v17.8h, , , , , , \dst, \src
load_add_store v4.8b, v18.8h, v2.8b, v16.8h, , , , \dst, \src
load_add_store v5.8b, v19.8h, v3.8b, v17.8h, v16.8h, v2.8b, , \dst, \src
load_add_store v6.8b, v20.8h, v4.8b, v18.8h, v17.8h, v3.8b, v2.8b, \dst, \src
load_add_store v7.8b, v21.8h, v5.8b, v19.8h, v18.8h, v4.8b, v3.8b, \dst, \src
load_add_store v2.8b, v22.8h, v6.8b, v20.8h, v19.8h, v5.8b, v4.8b, \dst, \src
load_add_store v3.8b, v23.8h, v7.8b, v21.8h, v20.8h, v6.8b, v5.8b, \dst, \src
load_add_store v4.8b, v24.8h, v2.8b, v22.8h, v21.8h, v7.8b, v6.8b, \dst, \src
load_add_store v5.8b, v25.8h, v3.8b, v23.8h, v22.8h, v2.8b, v7.8b, \dst, \src
load_add_store v6.8b, v26.8h, v4.8b, v24.8h, v23.8h, v3.8b, v2.8b, \dst, \src
load_add_store v7.8b, v27.8h, v5.8b, v25.8h, v24.8h, v4.8b, v3.8b, \dst, \src
load_add_store v2.8b, v28.8h, v6.8b, v26.8h, v25.8h, v5.8b, v4.8b, \dst, \src
load_add_store v3.8b, v29.8h, v7.8b, v27.8h, v26.8h, v6.8b, v5.8b, \dst, \src
load_add_store v4.8b, v30.8h, v2.8b, v28.8h, v27.8h, v7.8b, v6.8b, \dst, \src
load_add_store v5.8b, v31.8h, v3.8b, v29.8h, v28.8h, v2.8b, v7.8b, \dst, \src
load_add_store , , v4.8b, v30.8h, v29.8h, v3.8b, v2.8b, \dst, \src
load_add_store , , v5.8b, v31.8h, v30.8h, v4.8b, v3.8b, \dst, \src
load_add_store , , , , v31.8h, v5.8b, v4.8b, \dst, \src
load_add_store , , , , , , v5.8b, \dst, \src
.endm
.macro load_add_store_8x8 dst, src, shiftbits=4
mov \src, \dst
load_add_store v2.8b, v16.8h, , , , , , \dst, \src, \shiftbits
load_add_store v3.8b, v17.8h, , , , , , \dst, \src, \shiftbits
load_add_store v4.8b, v18.8h, v2.8b, v16.8h, , , , \dst, \src, \shiftbits
load_add_store v5.8b, v19.8h, v3.8b, v17.8h, v16.8h, v2.8b, , \dst, \src, \shiftbits
load_add_store v6.8b, v20.8h, v4.8b, v18.8h, v17.8h, v3.8b, v2.8b, \dst, \src, \shiftbits
load_add_store v7.8b, v21.8h, v5.8b, v19.8h, v18.8h, v4.8b, v3.8b, \dst, \src, \shiftbits
load_add_store v2.8b, v22.8h, v6.8b, v20.8h, v19.8h, v5.8b, v4.8b, \dst, \src, \shiftbits
load_add_store v3.8b, v23.8h, v7.8b, v21.8h, v20.8h, v6.8b, v5.8b, \dst, \src, \shiftbits
load_add_store , , v2.8b, v22.8h, v21.8h, v7.8b, v6.8b, \dst, \src, \shiftbits
load_add_store , , v3.8b, v23.8h, v22.8h, v2.8b, v7.8b, \dst, \src, \shiftbits
load_add_store , , , , v23.8h, v3.8b, v2.8b, \dst, \src, \shiftbits
load_add_store , , , , , , v3.8b, \dst, \src, \shiftbits
.endm
.macro load_add_store_8x4 dst, src
mov \src, \dst
load_add_store v2.8b, v16.8h, , , , , , \dst, \src
load_add_store v3.8b, v17.8h, , , , , , \dst, \src
load_add_store v4.8b, v18.8h, v2.8b, v16.8h, , , , \dst, \src
load_add_store v5.8b, v19.8h, v3.8b, v17.8h, v16.8h, v2.8b, , \dst, \src
load_add_store , , v4.8b, v18.8h, v17.8h, v3.8b, v2.8b, \dst, \src
load_add_store , , v5.8b, v19.8h, v18.8h, v4.8b, v3.8b, \dst, \src
load_add_store , , , , v19.8h, v5.8b, v4.8b, \dst, \src
load_add_store , , , , , , v5.8b, \dst, \src
.endm
.macro load_add_store4 load, inssrc, insdst, shift, addsrc, adddst, narrowsrc, narrowdst, store, dst, src
.ifnb \load
ld1 {\load}[0], [\src], x1
.endif
.ifnb \inssrc
ins \insdst\().d[1], \inssrc\().d[0]
.endif
.ifnb \shift
srshr \shift, \shift, #4
.endif
.ifnb \load
ld1 {\load}[1], [\src], x1
.endif
.ifnb \addsrc
uaddw \adddst, \adddst, \addsrc
.endif
.ifnb \store
st1 {\store}[0], [\dst], x1
.endif
.ifnb \narrowsrc
sqxtun \narrowdst, \narrowsrc
.endif
.ifnb \store
st1 {\store}[1], [\dst], x1
.endif
.endm
.macro load_add_store_4x16 dst, src
mov \src, \dst
load_add_store4 v0.s, v17, v16, , , , , , , \dst, \src
load_add_store4 v1.s, v19, v18, , , , , , , \dst, \src
load_add_store4 v2.s, v21, v20, v16.8h, , , , , , \dst, \src
load_add_store4 v3.s, v23, v22, v18.8h, v0.8b, v16.8h, , , , \dst, \src
load_add_store4 v4.s, v25, v24, v20.8h, v1.8b, v18.8h, v16.8h, v0.8b, , \dst, \src
load_add_store4 v5.s, v27, v26, v22.8h, v2.8b, v20.8h, v18.8h, v1.8b, v0.s, \dst, \src
load_add_store4 v6.s, v29, v28, v24.8h, v3.8b, v22.8h, v20.8h, v2.8b, v1.s, \dst, \src
load_add_store4 v7.s, v31, v30, v26.8h, v4.8b, v24.8h, v22.8h, v3.8b, v2.s, \dst, \src
load_add_store4 , , , v28.8h, v5.8b, v26.8h, v24.8h, v4.8b, v3.s, \dst, \src
load_add_store4 , , , v30.8h, v6.8b, v28.8h, v26.8h, v5.8b, v4.s, \dst, \src
load_add_store4 , , , , v7.8b, v30.8h, v28.8h, v6.8b, v5.s, \dst, \src
load_add_store4 , , , , , , v30.8h, v7.8b, v6.s, \dst, \src
load_add_store4 , , , , , , , , v7.s, \dst, \src
.endm
.macro load_add_store_4x8 dst, src
mov \src, \dst
load_add_store4 v0.s, v17, v16, , , , , , , \dst, \src
load_add_store4 v1.s, v19, v18, , , , , , , \dst, \src
load_add_store4 v2.s, v21, v20, v16.8h, , , , , , \dst, \src
load_add_store4 v3.s, v23, v22, v18.8h, v0.8b, v16.8h, , , , \dst, \src
load_add_store4 , , , v20.8h, v1.8b, v18.8h, v16.8h, v0.8b, , \dst, \src
load_add_store4 , , , v22.8h, v2.8b, v20.8h, v18.8h, v1.8b, v0.s, \dst, \src
load_add_store4 , , , , v3.8b, v22.8h, v20.8h, v2.8b, v1.s, \dst, \src
load_add_store4 , , , , , , v22.8h, v3.8b, v2.s, \dst, \src
load_add_store4 , , , , , , , , v3.s, \dst, \src
.endm
.macro idct_dc w, h, shift
cbnz w3, 1f
mov w16, #2896*8
ld1r {v16.8h}, [x2]
dup v0.4h, w16
sqrdmulh v16.8h, v16.8h, v0.h[0]
strh wzr, [x2]
.if (\w == 2*\h) || (2*\w == \h)
sqrdmulh v16.8h, v16.8h, v0.h[0]
.endif
.if \shift > 0
srshr v16.8h, v16.8h, #\shift
.endif
sqrdmulh v16.8h, v16.8h, v0.h[0]
srshr v16.8h, v16.8h, #4
mov w4, #\h
b idct_dc_w\w\()_neon
1:
.endm
function idct_dc_w4_neon
1:
ld1 {v0.s}[0], [x0], x1
ld1 {v0.s}[1], [x0], x1
ld1 {v1.s}[0], [x0], x1
ld1 {v1.s}[1], [x0], x1
subs w4, w4, #4
sub x0, x0, x1, lsl #2
uaddw v0.8h, v16.8h, v0.8b
sqxtun v0.8b, v0.8h
uaddw v1.8h, v16.8h, v1.8b
st1 {v0.s}[0], [x0], x1
sqxtun v1.8b, v1.8h
st1 {v0.s}[1], [x0], x1
st1 {v1.s}[0], [x0], x1
st1 {v1.s}[1], [x0], x1
b.gt 1b
ret
endfunc
function idct_dc_w8_neon
1:
ld1 {v0.8b}, [x0], x1
ld1 {v1.8b}, [x0], x1
ld1 {v2.8b}, [x0], x1
uaddw v20.8h, v16.8h, v0.8b
ld1 {v3.8b}, [x0], x1
sub x0, x0, x1, lsl #2
subs w4, w4, #4
uaddw v21.8h, v16.8h, v1.8b
sqxtun v0.8b, v20.8h
uaddw v22.8h, v16.8h, v2.8b
sqxtun v1.8b, v21.8h
uaddw v23.8h, v16.8h, v3.8b
st1 {v0.8b}, [x0], x1
sqxtun v2.8b, v22.8h
st1 {v1.8b}, [x0], x1
sqxtun v3.8b, v23.8h
st1 {v2.8b}, [x0], x1
st1 {v3.8b}, [x0], x1
b.gt 1b
ret
endfunc
function idct_dc_w16_neon
1:
ld1 {v0.16b}, [x0], x1
ld1 {v1.16b}, [x0], x1
ld1 {v2.16b}, [x0], x1
subs w4, w4, #4
uaddw v20.8h, v16.8h, v0.8b
uaddw2 v21.8h, v16.8h, v0.16b
ld1 {v3.16b}, [x0], x1
uaddw v22.8h, v16.8h, v1.8b
uaddw2 v23.8h, v16.8h, v1.16b
sub x0, x0, x1, lsl #2
uaddw v24.8h, v16.8h, v2.8b
uaddw2 v25.8h, v16.8h, v2.16b
sqxtun v0.8b, v20.8h
sqxtun2 v0.16b, v21.8h
uaddw v26.8h, v16.8h, v3.8b
uaddw2 v27.8h, v16.8h, v3.16b
sqxtun v1.8b, v22.8h
sqxtun2 v1.16b, v23.8h
sqxtun v2.8b, v24.8h
sqxtun2 v2.16b, v25.8h
st1 {v0.16b}, [x0], x1
sqxtun v3.8b, v26.8h
sqxtun2 v3.16b, v27.8h
st1 {v1.16b}, [x0], x1
st1 {v2.16b}, [x0], x1
st1 {v3.16b}, [x0], x1
b.gt 1b
ret
endfunc
function idct_dc_w32_neon
1:
ld1 {v0.16b, v1.16b}, [x0], x1
subs w4, w4, #2
uaddw v20.8h, v16.8h, v0.8b
uaddw2 v21.8h, v16.8h, v0.16b
ld1 {v2.16b, v3.16b}, [x0]
uaddw v22.8h, v16.8h, v1.8b
uaddw2 v23.8h, v16.8h, v1.16b
sub x0, x0, x1
uaddw v24.8h, v16.8h, v2.8b
uaddw2 v25.8h, v16.8h, v2.16b
sqxtun v0.8b, v20.8h
sqxtun2 v0.16b, v21.8h
uaddw v26.8h, v16.8h, v3.8b
uaddw2 v27.8h, v16.8h, v3.16b
sqxtun v1.8b, v22.8h
sqxtun2 v1.16b, v23.8h
sqxtun v2.8b, v24.8h
sqxtun2 v2.16b, v25.8h
st1 {v0.16b, v1.16b}, [x0], x1
sqxtun v3.8b, v26.8h
sqxtun2 v3.16b, v27.8h
st1 {v2.16b, v3.16b}, [x0], x1
b.gt 1b
ret
endfunc
function idct_dc_w64_neon
1:
ld1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0]
subs w4, w4, #1
uaddw v20.8h, v16.8h, v0.8b
uaddw2 v21.8h, v16.8h, v0.16b
uaddw v22.8h, v16.8h, v1.8b
uaddw2 v23.8h, v16.8h, v1.16b
uaddw v24.8h, v16.8h, v2.8b
uaddw2 v25.8h, v16.8h, v2.16b
sqxtun v0.8b, v20.8h
sqxtun2 v0.16b, v21.8h
uaddw v26.8h, v16.8h, v3.8b
uaddw2 v27.8h, v16.8h, v3.16b
sqxtun v1.8b, v22.8h
sqxtun2 v1.16b, v23.8h
sqxtun v2.8b, v24.8h
sqxtun2 v2.16b, v25.8h
sqxtun v3.8b, v26.8h
sqxtun2 v3.16b, v27.8h
st1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
b.gt 1b
ret
endfunc
.macro iwht4
add v16.4h, v16.4h, v17.4h
sub v21.4h, v18.4h, v19.4h
sub v20.4h, v16.4h, v21.4h
sshr v20.4h, v20.4h, #1
sub v18.4h, v20.4h, v17.4h
sub v17.4h, v20.4h, v19.4h
add v19.4h, v21.4h, v18.4h
sub v16.4h, v16.4h, v17.4h
.endm
.macro idct_4 r0, r1, r2, r3, sz
smull_smlal v6, v7, \r1, \r3, v0.h[3], v0.h[2], \sz
smull_smlsl v4, v5, \r1, \r3, v0.h[2], v0.h[3], \sz
smull_smlal v2, v3, \r0, \r2, v0.h[0], v0.h[0], \sz
rshrn_sz v6, v6, v7, #12, \sz
rshrn_sz v7, v4, v5, #12, \sz
smull_smlsl v4, v5, \r0, \r2, v0.h[0], v0.h[0], \sz
rshrn_sz v2, v2, v3, #12, \sz
rshrn_sz v3, v4, v5, #12, \sz
sqadd \r0\sz, v2\sz, v6\sz
sqsub \r3\sz, v2\sz, v6\sz
sqadd \r1\sz, v3\sz, v7\sz
sqsub \r2\sz, v3\sz, v7\sz
.endm
function inv_dct_4x4_neon
movrel x16, idct_coeffs
ld1 {v0.4h}, [x16]
idct_4 v16, v17, v18, v19, .4h
ret
endfunc
function inv_dct_8x4_neon
movrel x16, idct_coeffs
ld1 {v0.4h}, [x16]
idct_4 v16, v17, v18, v19, .8h
ret
endfunc
.macro iadst_4x4 o0, o1, o2, o3
movrel x16, iadst4_coeffs
ld1 {v0.8h}, [x16]
ssubl v3.4s, v16.4h, v18.4h
smull v4.4s, v16.4h, v0.h[0]
smlal v4.4s, v18.4h, v0.h[1]
smlal v4.4s, v19.4h, v0.h[2]
smull v7.4s, v17.4h, v0.h[3]
saddw v3.4s, v3.4s, v19.4h
smull v5.4s, v16.4h, v0.h[2]
smlsl v5.4s, v18.4h, v0.h[0]
smlsl v5.4s, v19.4h, v0.h[1]
add \o3\().4s, v4.4s, v5.4s
mul \o2\().4s, v3.4s, v0.s[2]
add \o0\().4s, v4.4s, v7.4s
add \o1\().4s, v5.4s, v7.4s
sub \o3\().4s, \o3\().4s, v7.4s
rshrn \o0\().4h, \o0\().4s, #12
rshrn \o2\().4h, \o2\().4s, #12
rshrn \o1\().4h, \o1\().4s, #12
rshrn \o3\().4h, \o3\().4s, #12
.endm
function inv_adst_4x4_neon
iadst_4x4 v16, v17, v18, v19
ret
endfunc
function inv_flipadst_4x4_neon
iadst_4x4 v19, v18, v17, v16
ret
endfunc
.macro iadst_8x4 o0, o1, o2, o3
movrel x16, iadst4_coeffs
ld1 {v0.8h}, [x16]
ssubl v2.4s, v16.4h, v18.4h
ssubl2 v3.4s, v16.8h, v18.8h
smull v4.4s, v16.4h, v0.h[0]
smlal v4.4s, v18.4h, v0.h[1]
smlal v4.4s, v19.4h, v0.h[2]
smull2 v5.4s, v16.8h, v0.h[0]
smlal2 v5.4s, v18.8h, v0.h[1]
smlal2 v5.4s, v19.8h, v0.h[2]
saddw v2.4s, v2.4s, v19.4h
saddw2 v3.4s, v3.4s, v19.8h
smull v6.4s, v16.4h, v0.h[2]
smlsl v6.4s, v18.4h, v0.h[0]
smlsl v6.4s, v19.4h, v0.h[1]
smull2 v7.4s, v16.8h, v0.h[2]
smlsl2 v7.4s, v18.8h, v0.h[0]
smlsl2 v7.4s, v19.8h, v0.h[1]
mul v18.4s, v2.4s, v0.s[2]
mul v19.4s, v3.4s, v0.s[2]
smull v2.4s, v17.4h, v0.h[3]
smull2 v3.4s, v17.8h, v0.h[3]
add v16.4s, v4.4s, v2.4s // out0
add v17.4s, v5.4s, v3.4s
add v4.4s, v4.4s, v6.4s // out3
add v5.4s, v5.4s, v7.4s
add v6.4s, v6.4s, v2.4s // out1
add v7.4s, v7.4s, v3.4s
sub v4.4s, v4.4s, v2.4s // out3
sub v5.4s, v5.4s, v3.4s
rshrn v18.4h, v18.4s, #12
rshrn2 v18.8h, v19.4s, #12
rshrn \o0\().4h, v16.4s, #12
rshrn2 \o0\().8h, v17.4s, #12
.ifc \o2, v17
mov v17.16b, v18.16b
.endif
rshrn \o1\().4h, v6.4s, #12
rshrn2 \o1\().8h, v7.4s, #12
rshrn \o3\().4h, v4.4s, #12
rshrn2 \o3\().8h, v5.4s, #12
.endm
function inv_adst_8x4_neon
iadst_8x4 v16, v17, v18, v19
ret
endfunc
function inv_flipadst_8x4_neon
iadst_8x4 v19, v18, v17, v16
ret
endfunc
function inv_identity_4x4_neon
mov w16, #5793
dup v0.4h, w16
smull v4.4s, v16.4h, v0.h[0]
smull v5.4s, v17.4h, v0.h[0]
smull v6.4s, v18.4h, v0.h[0]
smull v7.4s, v19.4h, v0.h[0]
rshrn v16.4h, v4.4s, #12
rshrn v17.4h, v5.4s, #12
rshrn v18.4h, v6.4s, #12
rshrn v19.4h, v7.4s, #12
ret
endfunc
function inv_identity_8x4_neon
mov w16, #5793
dup v0.4h, w16
smull v2.4s, v16.4h, v0.h[0]
smull2 v3.4s, v16.8h, v0.h[0]
smull v4.4s, v17.4h, v0.h[0]
smull2 v5.4s, v17.8h, v0.h[0]
rshrn v16.4h, v2.4s, #12
rshrn2 v16.8h, v3.4s, #12
smull v6.4s, v18.4h, v0.h[0]
smull2 v7.4s, v18.8h, v0.h[0]
rshrn v17.4h, v4.4s, #12
rshrn2 v17.8h, v5.4s, #12
smull v2.4s, v19.4h, v0.h[0]
smull2 v3.4s, v19.8h, v0.h[0]
rshrn v18.4h, v6.4s, #12
rshrn2 v18.8h, v7.4s, #12
rshrn v19.4h, v2.4s, #12
rshrn2 v19.8h, v3.4s, #12
ret
endfunc
function inv_txfm_add_wht_wht_4x4_neon, export=1
mov x15, x30
movi v31.8h, #0
ld1 {v16.4h,v17.4h,v18.4h,v19.4h}, [x2]
st1 {v31.8h}, [x2], #16
sshr v16.4h, v16.4h, #2
sshr v17.4h, v17.4h, #2
sshr v18.4h, v18.4h, #2
sshr v19.4h, v19.4h, #2
iwht4
st1 {v31.8h}, [x2], #16
transpose_4x4h v16, v17, v18, v19, v20, v21, v22, v23
iwht4
ld1 {v0.s}[0], [x0], x1
ld1 {v0.s}[1], [x0], x1
ins v16.d[1], v17.d[0]
ins v18.d[1], v19.d[0]
ld1 {v1.s}[0], [x0], x1
ld1 {v1.s}[1], [x0], x1
b L(itx_4x4_end)
endfunc
function inv_txfm_add_4x4_neon
movi v31.8h, #0
ld1 {v16.4h,v17.4h,v18.4h,v19.4h}, [x2]
st1 {v31.8h}, [x2], #16
blr x4
st1 {v31.8h}, [x2], #16
transpose_4x4h v16, v17, v18, v19, v20, v21, v22, v23
blr x5
ld1 {v0.s}[0], [x0], x1
ld1 {v0.s}[1], [x0], x1
ins v16.d[1], v17.d[0]
ins v18.d[1], v19.d[0]
ld1 {v1.s}[0], [x0], x1
ld1 {v1.s}[1], [x0], x1
srshr v16.8h, v16.8h, #4
srshr v18.8h, v18.8h, #4
L(itx_4x4_end):
sub x0, x0, x1, lsl #2
uaddw v16.8h, v16.8h, v0.8b
sqxtun v0.8b, v16.8h
uaddw v18.8h, v18.8h, v1.8b
st1 {v0.s}[0], [x0], x1
sqxtun v1.8b, v18.8h
st1 {v0.s}[1], [x0], x1
st1 {v1.s}[0], [x0], x1
st1 {v1.s}[1], [x0], x1
br x15
endfunc
.macro def_fn_4x4 txfm1, txfm2
function inv_txfm_add_\txfm1\()_\txfm2\()_4x4_neon, export=1
mov x15, x30
.ifc \txfm1\()_\txfm2, dct_dct
cbnz w3, 1f
mov w16, #2896*8
ld1r {v16.8h}, [x2]
dup v4.8h, w16
strh wzr, [x2]
sqrdmulh v16.8h, v16.8h, v4.h[0]
ld1 {v0.s}[0], [x0], x1
sqrdmulh v20.8h, v16.8h, v4.h[0]
ld1 {v0.s}[1], [x0], x1
srshr v16.8h, v20.8h, #4
ld1 {v1.s}[0], [x0], x1
srshr v18.8h, v20.8h, #4
ld1 {v1.s}[1], [x0], x1
b L(itx_4x4_end)
1:
.endif
adr x4, inv_\txfm1\()_4x4_neon
adr x5, inv_\txfm2\()_4x4_neon
b inv_txfm_add_4x4_neon
endfunc
.endm
def_fn_4x4 dct, dct
def_fn_4x4 identity, identity
def_fn_4x4 dct, adst
def_fn_4x4 dct, flipadst
def_fn_4x4 dct, identity
def_fn_4x4 adst, dct
def_fn_4x4 adst, adst
def_fn_4x4 adst, flipadst
def_fn_4x4 flipadst, dct
def_fn_4x4 flipadst, adst
def_fn_4x4 flipadst, flipadst
def_fn_4x4 identity, dct
def_fn_4x4 adst, identity
def_fn_4x4 flipadst, identity
def_fn_4x4 identity, adst
def_fn_4x4 identity, flipadst
.macro idct_8 r0, r1, r2, r3, r4, r5, r6, r7, sz, szb
idct_4 \r0, \r2, \r4, \r6, \sz
smull_smlsl v2, v3, \r1, \r7, v0.h[4], v0.h[5], \sz // -> t4a
smull_smlal v4, v5, \r1, \r7, v0.h[5], v0.h[4], \sz // -> t7a
smull_smlsl v6, v7, \r5, \r3, v0.h[6], v0.h[7], \sz // -> t5a
rshrn_sz \r1, v2, v3, #12, \sz // t4a
rshrn_sz \r7, v4, v5, #12, \sz // t7a
smull_smlal v2, v3, \r5, \r3, v0.h[7], v0.h[6], \sz // -> t6a
rshrn_sz \r3, v6, v7, #12, \sz // t5a
rshrn_sz \r5, v2, v3, #12, \sz // taa
sqadd v2\sz, \r1\sz, \r3\sz // t4
sqsub \r1\sz, \r1\sz, \r3\sz // t5a
sqadd v3\sz, \r7\sz, \r5\sz // t7
sqsub \r3\sz, \r7\sz, \r5\sz // t6a
smull_smlsl v4, v5, \r3, \r1, v0.h[0], v0.h[0], \sz // -> t5
smull_smlal v6, v7, \r3, \r1, v0.h[0], v0.h[0], \sz // -> t6
rshrn_sz v4, v4, v5, #12, \sz // t5
rshrn_sz v5, v6, v7, #12, \sz // t6
sqsub \r7\sz, \r0\sz, v3\sz // out7
sqadd \r0\sz, \r0\sz, v3\sz // out0
sqadd \r1\sz, \r2\sz, v5\sz // out1
sqsub v6\sz, \r2\sz, v5\sz // out6
sqadd \r2\sz, \r4\sz, v4\sz // out2
sqsub \r5\sz, \r4\sz, v4\sz // out5
sqadd \r3\sz, \r6\sz, v2\sz // out3
sqsub \r4\sz, \r6\sz, v2\sz // out4
mov \r6\szb, v6\szb // out6
.endm
function inv_dct_8x8_neon
movrel x16, idct_coeffs
ld1 {v0.8h}, [x16]
idct_8 v16, v17, v18, v19, v20, v21, v22, v23, .8h, .16b
ret
endfunc
function inv_dct_4x8_neon
movrel x16, idct_coeffs
ld1 {v0.8h}, [x16]
idct_8 v16, v17, v18, v19, v20, v21, v22, v23, .4h, .8b
ret
endfunc
.macro iadst_8 o0, o1, o2, o3, o4, o5, o6, o7, sz
movrel x16, iadst8_coeffs
ld1 {v0.8h, v1.8h}, [x16]
smull_smlal v2, v3, v23, v16, v0.h[0], v0.h[1], \sz
smull_smlsl v4, v5, v23, v16, v0.h[1], v0.h[0], \sz
smull_smlal v6, v7, v21, v18, v0.h[2], v0.h[3], \sz
rshrn_sz v16, v2, v3, #12, \sz // t0a
rshrn_sz v23, v4, v5, #12, \sz // t1a
smull_smlsl v2, v3, v21, v18, v0.h[3], v0.h[2], \sz
smull_smlal v4, v5, v19, v20, v0.h[4], v0.h[5], \sz
rshrn_sz v18, v6, v7, #12, \sz // t2a
rshrn_sz v21, v2, v3, #12, \sz // t3a
smull_smlsl v6, v7, v19, v20, v0.h[5], v0.h[4], \sz
smull_smlal v2, v3, v17, v22, v0.h[6], v0.h[7], \sz
rshrn_sz v20, v4, v5, #12, \sz // t4a
rshrn_sz v19, v6, v7, #12, \sz // t5a
smull_smlsl v4, v5, v17, v22, v0.h[7], v0.h[6], \sz
rshrn_sz v22, v2, v3, #12, \sz // t6a
rshrn_sz v17, v4, v5, #12, \sz // t7a
sqadd v2\sz, v16\sz, v20\sz // t0
sqsub v3\sz, v16\sz, v20\sz // t4
sqadd v4\sz, v23\sz, v19\sz // t1
sqsub v5\sz, v23\sz, v19\sz // t5
sqadd v6\sz, v18\sz, v22\sz // t2
sqsub v7\sz, v18\sz, v22\sz // t6
sqadd v18\sz, v21\sz, v17\sz // t3
sqsub v19\sz, v21\sz, v17\sz // t7
smull_smlal v16, v17, v3, v5, v1.h[3], v1.h[2], \sz
smull_smlsl v20, v21, v3, v5, v1.h[2], v1.h[3], \sz
smull_smlsl v22, v23, v19, v7, v1.h[3], v1.h[2], \sz
rshrn_sz v3, v16, v17, #12, \sz // t4a
rshrn_sz v5, v20, v21, #12, \sz // t5a
smull_smlal v16, v17, v19, v7, v1.h[2], v1.h[3], \sz
rshrn_sz v7, v22, v23, #12, \sz // t6a
rshrn_sz v19, v16, v17, #12, \sz // t7a
sqadd \o0\()\sz, v2\sz, v6\sz // out0
sqsub v2\sz, v2\sz, v6\sz // t2
sqadd \o7\()\sz, v4\sz, v18\sz // out7
sqsub v4\sz, v4\sz, v18\sz // t3
sqneg \o7\()\sz, \o7\()\sz // out7
sqadd \o1\()\sz, v3\sz, v7\sz // out1
sqsub v3\sz, v3\sz, v7\sz // t6
sqadd \o6\()\sz, v5\sz, v19\sz // out6
sqsub v5\sz, v5\sz, v19\sz // t7
sqneg \o1\()\sz, \o1\()\sz // out1
smull_smlal v18, v19, v2, v4, v1.h[0], v1.h[0], \sz // -> out3 (v19 or v20)
smull_smlsl v6, v7, v2, v4, v1.h[0], v1.h[0], \sz // -> out4 (v20 or v19)
smull_smlsl v20, v21, v3, v5, v1.h[0], v1.h[0], \sz // -> out5 (v21 or v18)
rshrn_sz v2, v18, v19, #12, \sz // out3
smull_smlal v18, v19, v3, v5, v1.h[0], v1.h[0], \sz // -> out2 (v18 or v21)
rshrn_sz v3, v20, v21, #12, \sz // out5
rshrn_sz \o2, v18, v19, #12, \sz // out2 (v18 or v21)
rshrn_sz \o4, v6, v7, #12, \sz // out4 (v20 or v19)
sqneg \o3\()\sz, v2\sz // out3
sqneg \o5\()\sz, v3\sz // out5
.endm
function inv_adst_8x8_neon
iadst_8 v16, v17, v18, v19, v20, v21, v22, v23, .8h
ret
endfunc
function inv_flipadst_8x8_neon
iadst_8 v23, v22, v21, v20, v19, v18, v17, v16, .8h
ret
endfunc
function inv_adst_4x8_neon
iadst_8 v16, v17, v18, v19, v20, v21, v22, v23, .4h
ret
endfunc
function inv_flipadst_4x8_neon
iadst_8 v23, v22, v21, v20, v19, v18, v17, v16, .4h
ret
endfunc
function inv_identity_8x8_neon
shl v16.8h, v16.8h, #1
shl v17.8h, v17.8h, #1
shl v18.8h, v18.8h, #1
shl v19.8h, v19.8h, #1
shl v20.8h, v20.8h, #1
shl v21.8h, v21.8h, #1
shl v22.8h, v22.8h, #1
shl v23.8h, v23.8h, #1
ret
endfunc
function inv_identity_4x8_neon
shl v16.4h, v16.4h, #1
shl v17.4h, v17.4h, #1
shl v18.4h, v18.4h, #1
shl v19.4h, v19.4h, #1
shl v20.4h, v20.4h, #1
shl v21.4h, v21.4h, #1
shl v22.4h, v22.4h, #1
shl v23.4h, v23.4h, #1
ret
endfunc
function inv_txfm_add_8x8_neon
movi v28.8h, #0
movi v29.8h, #0
movi v30.8h, #0
movi v31.8h, #0
ld1 {v16.8h,v17.8h,v18.8h,v19.8h}, [x2]
st1 {v28.8h,v29.8h,v30.8h,v31.8h}, [x2], #64
ld1 {v20.8h,v21.8h,v22.8h,v23.8h}, [x2]
st1 {v28.8h,v29.8h,v30.8h,v31.8h}, [x2]
blr x4
srshr v16.8h, v16.8h, #1
srshr v17.8h, v17.8h, #1
srshr v18.8h, v18.8h, #1
srshr v19.8h, v19.8h, #1
srshr v20.8h, v20.8h, #1
srshr v21.8h, v21.8h, #1
srshr v22.8h, v22.8h, #1
srshr v23.8h, v23.8h, #1
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v24, v25
blr x5
load_add_store_8x8 x0, x7
br x15
endfunc
.macro def_fn_8x8 txfm1, txfm2
function inv_txfm_add_\txfm1\()_\txfm2\()_8x8_neon, export=1
mov x15, x30
.ifc \txfm1\()_\txfm2, dct_dct
idct_dc 8, 8, 1
.endif
adr x4, inv_\txfm1\()_8x8_neon
adr x5, inv_\txfm2\()_8x8_neon
b inv_txfm_add_8x8_neon
endfunc
.endm
def_fn_8x8 dct, dct
def_fn_8x8 identity, identity
def_fn_8x8 dct, adst
def_fn_8x8 dct, flipadst
def_fn_8x8 dct, identity
def_fn_8x8 adst, dct
def_fn_8x8 adst, adst
def_fn_8x8 adst, flipadst
def_fn_8x8 flipadst, dct
def_fn_8x8 flipadst, adst
def_fn_8x8 flipadst, flipadst
def_fn_8x8 identity, dct
def_fn_8x8 adst, identity
def_fn_8x8 flipadst, identity
def_fn_8x8 identity, adst
def_fn_8x8 identity, flipadst
function inv_txfm_add_8x4_neon
movi v30.8h, #0
movi v31.8h, #0
mov w16, #2896*8
dup v0.4h, w16
ld1 {v16.4h,v17.4h,v18.4h,v19.4h}, [x2]
st1 {v30.8h,v31.8h}, [x2], #32
ld1 {v20.4h,v21.4h,v22.4h,v23.4h}, [x2]
st1 {v30.8h,v31.8h}, [x2]
scale_input .4h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
blr x4
transpose_4x4h v16, v17, v18, v19, v4, v5, v6, v7
transpose_4x4h v20, v21, v22, v23, v4, v5, v6, v7
ins v16.d[1], v20.d[0]
ins v17.d[1], v21.d[0]
ins v18.d[1], v22.d[0]
ins v19.d[1], v23.d[0]
blr x5
load_add_store_8x4 x0, x7
br x15
endfunc
function inv_txfm_add_4x8_neon
movi v28.8h, #0
movi v29.8h, #0
movi v30.8h, #0
movi v31.8h, #0
mov w16, #2896*8
dup v0.4h, w16
ld1 {v16.8h,v17.8h,v18.8h,v19.8h}, [x2]
st1 {v28.8h,v29.8h,v30.8h,v31.8h}, [x2]
scale_input .8h, v0.h[0], v16, v17, v18, v19
blr x4
transpose_4x8h v16, v17, v18, v19, v4, v5, v6, v7
ins v20.d[0], v16.d[1]
ins v21.d[0], v17.d[1]
ins v22.d[0], v18.d[1]
ins v23.d[0], v19.d[1]
blr x5
load_add_store_4x8 x0, x7
br x15
endfunc
.macro def_fn_48 w, h, txfm1, txfm2
function inv_txfm_add_\txfm1\()_\txfm2\()_\w\()x\h\()_neon, export=1
mov x15, x30
.ifc \txfm1\()_\txfm2, dct_dct
idct_dc \w, \h, 0
.endif
adr x4, inv_\txfm1\()_\h\()x\w\()_neon
adr x5, inv_\txfm2\()_\w\()x\h\()_neon
b inv_txfm_add_\w\()x\h\()_neon
endfunc
.endm
.macro def_fns_48 w, h
def_fn_48 \w, \h, dct, dct
def_fn_48 \w, \h, identity, identity
def_fn_48 \w, \h, dct, adst
def_fn_48 \w, \h, dct, flipadst
def_fn_48 \w, \h, dct, identity
def_fn_48 \w, \h, adst, dct
def_fn_48 \w, \h, adst, adst
def_fn_48 \w, \h, adst, flipadst
def_fn_48 \w, \h, flipadst, dct
def_fn_48 \w, \h, flipadst, adst
def_fn_48 \w, \h, flipadst, flipadst
def_fn_48 \w, \h, identity, dct
def_fn_48 \w, \h, adst, identity
def_fn_48 \w, \h, flipadst, identity
def_fn_48 \w, \h, identity, adst
def_fn_48 \w, \h, identity, flipadst
.endm
def_fns_48 4, 8
def_fns_48 8, 4
.macro idct_16 sz, szb
idct_8 v16, v18, v20, v22, v24, v26, v28, v30, \sz, \szb
smull_smlsl v2, v3, v17, v31, v1.h[0], v1.h[1], \sz // -> t8a
smull_smlal v4, v5, v17, v31, v1.h[1], v1.h[0], \sz // -> t15a
smull_smlsl v6, v7, v25, v23, v1.h[2], v1.h[3], \sz // -> t9a
rshrn_sz v17, v2, v3, #12, \sz // t8a
rshrn_sz v31, v4, v5, #12, \sz // t15a
smull_smlal v2, v3, v25, v23, v1.h[3], v1.h[2], \sz // -> t14a
smull_smlsl v4, v5, v21, v27, v1.h[4], v1.h[5], \sz // -> t10a
rshrn_sz v23, v6, v7, #12, \sz // t9a
rshrn_sz v25, v2, v3, #12, \sz // t14a
smull_smlal v6, v7, v21, v27, v1.h[5], v1.h[4], \sz // -> t13a
smull_smlsl v2, v3, v29, v19, v1.h[6], v1.h[7], \sz // -> t11a
rshrn_sz v21, v4, v5, #12, \sz // t10a
rshrn_sz v27, v6, v7, #12, \sz // t13a
smull_smlal v4, v5, v29, v19, v1.h[7], v1.h[6], \sz // -> t12a
rshrn_sz v19, v2, v3, #12, \sz // t11a
rshrn_sz v29, v4, v5, #12, \sz // t12a
sqsub v2\sz, v17\sz, v23\sz // t9
sqadd v17\sz, v17\sz, v23\sz // t8
sqsub v3\sz, v31\sz, v25\sz // t14
sqadd v31\sz, v31\sz, v25\sz // t15
sqsub v23\sz, v19\sz, v21\sz // t10
sqadd v19\sz, v19\sz, v21\sz // t11
sqadd v25\sz, v29\sz, v27\sz // t12
sqsub v29\sz, v29\sz, v27\sz // t13
smull_smlsl v4, v5, v3, v2, v0.h[2], v0.h[3], \sz // -> t9a
smull_smlal v6, v7, v3, v2, v0.h[3], v0.h[2], \sz // -> t14a
rshrn_sz v21, v4, v5, #12, \sz // t9a
rshrn_sz v27, v6, v7, #12, \sz // t14a
smull_smlsl v4, v5, v29, v23, v0.h[2], v0.h[3], \sz // -> t13a
neg v29\sz, v29\sz
smull_smlsl v6, v7, v29, v23, v0.h[3], v0.h[2], \sz // -> t10a
rshrn_sz v29, v4, v5, #12, \sz // t13a
rshrn_sz v23, v6, v7, #12, \sz // t10a
sqsub v2\sz, v17\sz, v19\sz // t11a
sqadd v17\sz, v17\sz, v19\sz // t8a
sqsub v3\sz, v31\sz, v25\sz // t12a
sqadd v31\sz, v31\sz, v25\sz // t15a
sqadd v19\sz, v21\sz, v23\sz // t9
sqsub v21\sz, v21\sz, v23\sz // t10
sqsub v25\sz, v27\sz, v29\sz // t13
sqadd v27\sz, v27\sz, v29\sz // t14
smull_smlsl v4, v5, v3, v2, v0.h[0], v0.h[0], \sz // -> t11
smull_smlal v6, v7, v3, v2, v0.h[0], v0.h[0], \sz // -> t12
smull_smlsl v2, v3, v25, v21, v0.h[0], v0.h[0], \sz // -> t10a
rshrn_sz v4, v4, v5, #12, \sz // t11
rshrn_sz v5, v6, v7, #12, \sz // t12
smull_smlal v6, v7, v25, v21, v0.h[0], v0.h[0], \sz // -> t10a
rshrn_sz v2, v2, v3, #12, \sz // t10a
rshrn_sz v3, v6, v7, #12, \sz // t13a
sqadd v6\sz, v16\sz, v31\sz // out0
sqsub v31\sz, v16\sz, v31\sz // out15
mov v16\szb, v6\szb
sqadd v23\sz, v30\sz, v17\sz // out7
sqsub v7\sz, v30\sz, v17\sz // out8
sqadd v17\sz, v18\sz, v27\sz // out1
sqsub v30\sz, v18\sz, v27\sz // out14
sqadd v18\sz, v20\sz, v3\sz // out2
sqsub v29\sz, v20\sz, v3\sz // out13
sqadd v3\sz, v28\sz, v19\sz // out6
sqsub v25\sz, v28\sz, v19\sz // out9
sqadd v19\sz, v22\sz, v5\sz // out3
sqsub v28\sz, v22\sz, v5\sz // out12
sqadd v20\sz, v24\sz, v4\sz // out4
sqsub v27\sz, v24\sz, v4\sz // out11
sqadd v21\sz, v26\sz, v2\sz // out5
sqsub v26\sz, v26\sz, v2\sz // out10
mov v24\szb, v7\szb
mov v22\szb, v3\szb
.endm
function inv_dct_8x16_neon
movrel x16, idct_coeffs
ld1 {v0.8h, v1.8h}, [x16]
idct_16 .8h, .16b
ret
endfunc
function inv_dct_4x16_neon
movrel x16, idct_coeffs
ld1 {v0.8h, v1.8h}, [x16]
idct_16 .4h, .8b
ret
endfunc
.macro iadst_16 o0, o1, o2, o3, o4, o5, o6, o7, o8, o9, o10, o11, o12, o13, o14, o15, sz, szb
movrel x16, iadst16_coeffs
ld1 {v0.8h, v1.8h}, [x16]
movrel x16, idct_coeffs
smull_smlal v2, v3, v31, v16, v0.h[0], v0.h[1], \sz // -> t0
smull_smlsl v4, v5, v31, v16, v0.h[1], v0.h[0], \sz // -> t1
smull_smlal v6, v7, v29, v18, v0.h[2], v0.h[3], \sz // -> t2
rshrn_sz v16, v2, v3, #12, \sz // t0
rshrn_sz v31, v4, v5, #12, \sz // t1
smull_smlsl v2, v3, v29, v18, v0.h[3], v0.h[2], \sz // -> t3
smull_smlal v4, v5, v27, v20, v0.h[4], v0.h[5], \sz // -> t4
rshrn_sz v18, v6, v7, #12, \sz // t2
rshrn_sz v29, v2, v3, #12, \sz // t3
smull_smlsl v6, v7, v27, v20, v0.h[5], v0.h[4], \sz // -> t5
smull_smlal v2, v3, v25, v22, v0.h[6], v0.h[7], \sz // -> t6
rshrn_sz v20, v4, v5, #12, \sz // t4
rshrn_sz v27, v6, v7, #12, \sz // t5
smull_smlsl v4, v5, v25, v22, v0.h[7], v0.h[6], \sz // -> t7
smull_smlal v6, v7, v23, v24, v1.h[0], v1.h[1], \sz // -> t8
rshrn_sz v22, v2, v3, #12, \sz // t6
rshrn_sz v25, v4, v5, #12, \sz // t7
smull_smlsl v2, v3, v23, v24, v1.h[1], v1.h[0], \sz // -> t9
smull_smlal v4, v5, v21, v26, v1.h[2], v1.h[3], \sz // -> t10
rshrn_sz v23, v6, v7, #12, \sz // t8
rshrn_sz v24, v2, v3, #12, \sz // t9
smull_smlsl v6, v7, v21, v26, v1.h[3], v1.h[2], \sz // -> t11
smull_smlal v2, v3, v19, v28, v1.h[4], v1.h[5], \sz // -> t12
rshrn_sz v21, v4, v5, #12, \sz // t10
rshrn_sz v26, v6, v7, #12, \sz // t11
smull_smlsl v4, v5, v19, v28, v1.h[5], v1.h[4], \sz // -> t13
smull_smlal v6, v7, v17, v30, v1.h[6], v1.h[7], \sz // -> t14
rshrn_sz v19, v2, v3, #12, \sz // t12
rshrn_sz v28, v4, v5, #12, \sz // t13
smull_smlsl v2, v3, v17, v30, v1.h[7], v1.h[6], \sz // -> t15
rshrn_sz v17, v6, v7, #12, \sz // t14
rshrn_sz v30, v2, v3, #12, \sz // t15
ld1 {v0.8h}, [x16]
sqsub v2\sz, v16\sz, v23\sz // t8a
sqadd v16\sz, v16\sz, v23\sz // t0a
sqsub v3\sz, v31\sz, v24\sz // t9a
sqadd v31\sz, v31\sz, v24\sz // t1a
sqadd v23\sz, v18\sz, v21\sz // t2a
sqsub v18\sz, v18\sz, v21\sz // t10a
sqadd v24\sz, v29\sz, v26\sz // t3a
sqsub v29\sz, v29\sz, v26\sz // t11a
sqadd v21\sz, v20\sz, v19\sz // t4a
sqsub v20\sz, v20\sz, v19\sz // t12a
sqadd v26\sz, v27\sz, v28\sz // t5a
sqsub v27\sz, v27\sz, v28\sz // t13a
sqadd v19\sz, v22\sz, v17\sz // t6a
sqsub v22\sz, v22\sz, v17\sz // t14a
sqadd v28\sz, v25\sz, v30\sz // t7a
sqsub v25\sz, v25\sz, v30\sz // t15a
smull_smlal v4, v5, v2, v3, v0.h[5], v0.h[4], \sz // -> t8
smull_smlsl v6, v7, v2, v3, v0.h[4], v0.h[5], \sz // -> t9
smull_smlal v2, v3, v18, v29, v0.h[7], v0.h[6], \sz // -> t10
rshrn_sz v17, v4, v5, #12, \sz // t8
rshrn_sz v30, v6, v7, #12, \sz // t9
smull_smlsl v4, v5, v18, v29, v0.h[6], v0.h[7], \sz // -> t11
smull_smlsl v6, v7, v27, v20, v0.h[5], v0.h[4], \sz // -> t12
rshrn_sz v18, v2, v3, #12, \sz // t10
rshrn_sz v29, v4, v5, #12, \sz // t11
smull_smlal v2, v3, v27, v20, v0.h[4], v0.h[5], \sz // -> t13
smull_smlsl v4, v5, v25, v22, v0.h[7], v0.h[6], \sz // -> t14
rshrn_sz v27, v6, v7, #12, \sz // t12
rshrn_sz v20, v2, v3, #12, \sz // t13
smull_smlal v6, v7, v25, v22, v0.h[6], v0.h[7], \sz // -> t15
rshrn_sz v25, v4, v5, #12, \sz // t14
rshrn_sz v22, v6, v7, #12, \sz // t15
sqsub v2\sz, v16\sz, v21\sz // t4
sqadd v16\sz, v16\sz, v21\sz // t0
sqsub v3\sz, v31\sz, v26\sz // t5
sqadd v31\sz, v31\sz, v26\sz // t1
sqadd v21\sz, v23\sz, v19\sz // t2
sqsub v23\sz, v23\sz, v19\sz // t6
sqadd v26\sz, v24\sz, v28\sz // t3
sqsub v24\sz, v24\sz, v28\sz // t7
sqadd v19\sz, v17\sz, v27\sz // t8a
sqsub v17\sz, v17\sz, v27\sz // t12a
sqadd v28\sz, v30\sz, v20\sz // t9a
sqsub v30\sz, v30\sz, v20\sz // t13a
sqadd v27\sz, v18\sz, v25\sz // t10a
sqsub v18\sz, v18\sz, v25\sz // t14a
sqadd v20\sz, v29\sz, v22\sz // t11a
sqsub v29\sz, v29\sz, v22\sz // t15a
smull_smlal v4, v5, v2, v3, v0.h[3], v0.h[2], \sz // -> t4a
smull_smlsl v6, v7, v2, v3, v0.h[2], v0.h[3], \sz // -> t5a
smull_smlsl v2, v3, v24, v23, v0.h[3], v0.h[2], \sz // -> t6a
rshrn_sz v22, v4, v5, #12, \sz // t4a
rshrn_sz v25, v6, v7, #12, \sz // t5a
smull_smlal v4, v5, v24, v23, v0.h[2], v0.h[3], \sz // -> t7a
smull_smlal v6, v7, v17, v30, v0.h[3], v0.h[2], \sz // -> t12
rshrn_sz v24, v2, v3, #12, \sz // t6a
rshrn_sz v23, v4, v5, #12, \sz // t7a
smull_smlsl v2, v3, v17, v30, v0.h[2], v0.h[3], \sz // -> t13
smull_smlsl v4, v5, v29, v18, v0.h[3], v0.h[2], \sz // -> t14
rshrn_sz v17, v6, v7, #12, \sz // t12
smull_smlal v6, v7, v29, v18, v0.h[2], v0.h[3], \sz // -> t15
rshrn_sz v29, v2, v3, #12, \sz // t13
rshrn_sz v30, v4, v5, #12, \sz // t14
rshrn_sz v18, v6, v7, #12, \sz // t15
sqsub v2\sz, v16\sz, v21\sz // t2a
.ifc \o0, v16
sqadd \o0\sz, v16\sz, v21\sz // out0
sqsub v21\sz, v31\sz, v26\sz // t3a
sqadd \o15\sz, v31\sz, v26\sz // out15
.else
sqadd v4\sz, v16\sz, v21\sz // out0
sqsub v21\sz, v31\sz, v26\sz // t3a
sqadd \o15\sz, v31\sz, v26\sz // out15
mov \o0\szb, v4\szb
.endif
sqneg \o15\sz, \o15\sz // out15
sqsub v3\sz, v29\sz, v18\sz // t15a
sqadd \o13\sz, v29\sz, v18\sz // out13
sqadd \o2\sz, v17\sz, v30\sz // out2
sqsub v26\sz, v17\sz, v30\sz // t14a
sqneg \o13\sz, \o13\sz // out13
sqadd \o1\sz, v19\sz, v27\sz // out1
sqsub v27\sz, v19\sz, v27\sz // t10
sqadd \o14\sz, v28\sz, v20\sz // out14
sqsub v20\sz, v28\sz, v20\sz // t11
sqneg \o1\sz, \o1\sz // out1
sqadd \o3\sz, v22\sz, v24\sz // out3
sqsub v22\sz, v22\sz, v24\sz // t6
sqadd \o12\sz, v25\sz, v23\sz // out12
sqsub v23\sz, v25\sz, v23\sz // t7
sqneg \o3\sz, \o3\sz // out3
smull_smlsl v24, v25, v2, v21, v0.h[0], v0.h[0], \sz // -> out8 (v24 or v23)
smull_smlal v4, v5, v2, v21, v0.h[0], v0.h[0], \sz // -> out7 (v23 or v24)
smull_smlal v6, v7, v26, v3, v0.h[0], v0.h[0], \sz // -> out5 (v21 or v26)
rshrn_sz v24, v24, v25, #12, \sz // out8
rshrn_sz v4, v4, v5, #12, \sz // out7
rshrn_sz v5, v6, v7, #12, \sz // out5
smull_smlsl v6, v7, v26, v3, v0.h[0], v0.h[0], \sz // -> out10 (v26 or v21)
smull_smlal v2, v3, v22, v23, v0.h[0], v0.h[0], \sz // -> out4 (v20 or v27)
rshrn_sz v26, v6, v7, #12, \sz // out10
smull_smlsl v6, v7, v22, v23, v0.h[0], v0.h[0], \sz // -> out11 (v27 or v20)
smull_smlal v22, v23, v27, v20, v0.h[0], v0.h[0], \sz // -> out6 (v22 or v25)
smull_smlsl v21, v25, v27, v20, v0.h[0], v0.h[0], \sz // -> out9 (v25 or v22)
rshrn_sz \o4, v2, v3, #12, \sz // out4
rshrn_sz v6, v6, v7, #12, \sz // out11
rshrn_sz v7, v21, v25, #12, \sz // out9
rshrn_sz \o6, v22, v23, #12, \sz // out6
.ifc \o8, v23
mov \o8\szb, v24\szb
mov \o10\szb, v26\szb
.endif
sqneg \o7\sz, v4\sz // out7
sqneg \o5\sz, v5\sz // out5
sqneg \o11\sz, v6\sz // out11
sqneg \o9\sz, v7\sz // out9
.endm
function inv_adst_8x16_neon
iadst_16 v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, .8h, .16b
ret
endfunc
function inv_flipadst_8x16_neon
iadst_16 v31, v30, v29, v28, v27, v26, v25, v24, v23, v22, v21, v20, v19, v18, v17, v16, .8h, .16b
ret
endfunc
function inv_adst_4x16_neon
iadst_16 v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, .4h, .8b
ret
endfunc
function inv_flipadst_4x16_neon
iadst_16 v31, v30, v29, v28, v27, v26, v25, v24, v23, v22, v21, v20, v19, v18, v17, v16, .4h, .8b
ret
endfunc
function inv_identity_8x16_neon
mov w16, #2*5793
dup v0.4h, w16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
smull v2.4s, v\i\().4h, v0.h[0]
smull2 v3.4s, v\i\().8h, v0.h[0]
rshrn v\i\().4h, v2.4s, #12
rshrn2 v\i\().8h, v3.4s, #12
.endr
ret
endfunc
function inv_identity_4x16_neon
mov w16, #2*5793
dup v0.4h, w16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
smull v2.4s, v\i\().4h, v0.h[0]
rshrn v\i\().4h, v2.4s, #12
.endr
ret
endfunc
function inv_txfm_horz_16x8_neon
mov x14, x30
movi v7.8h, #0
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x7]
st1 {v7.8h}, [x7], x8
.endr
blr x4
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
srshr v\i\().8h, v\i\().8h, #2
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
transpose_8x8h v24, v25, v26, v27, v28, v29, v30, v31, v4, v5
.irp i, 16, 24, 17, 25, 18, 26, 19, 27, 20, 28, 21, 29, 22, 30, 23, 31
st1 {v\i\().8h}, [x6], #16
.endr
br x14
endfunc
function inv_txfm_horz_scale_16x8_neon
mov x14, x30
movi v7.8h, #0
mov w16, #2896*8
dup v0.4h, w16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x7]
st1 {v7.8h}, [x7], x8
.endr
scale_input .8h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
scale_input .8h, v0.h[0], v24, v25, v26, v27, v28, v29, v30, v31
blr x4
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
srshr v\i\().8h, v\i\().8h, #1
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
transpose_8x8h v24, v25, v26, v27, v28, v29, v30, v31, v4, v5
.irp i, 16, 24, 17, 25, 18, 26, 19, 27, 20, 28, 21, 29, 22, 30, 23, 31
st1 {v\i\().8h}, [x6], #16
.endr
br x14
endfunc
function inv_txfm_add_vert_8x16_neon
mov x14, x30
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x7], x8
.endr
blr x5
load_add_store_8x16 x6, x7
br x14
endfunc
function inv_txfm_add_16x16_neon
mov x15, x30
sub sp, sp, #512
.irp i, 0, 8
add x6, sp, #(\i*16*2)
.if \i == 8
cmp w3, w13
b.lt 1f
.endif
add x7, x2, #(\i*2)
mov x8, #16*2
bl inv_txfm_horz_16x8_neon
.endr
b 2f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
2:
.irp i, 0, 8
add x6, x0, #(\i)
add x7, sp, #(\i*2)
mov x8, #32
bl inv_txfm_add_vert_8x16_neon
.endr
add sp, sp, #512
br x15
endfunc
.macro def_fn_16x16 txfm1, txfm2, eob_half
function inv_txfm_add_\txfm1\()_\txfm2\()_16x16_neon, export=1
.ifc \txfm1\()_\txfm2, dct_dct
idct_dc 16, 16, 2
.endif
adr x4, inv_\txfm1\()_8x16_neon
adr x5, inv_\txfm2\()_8x16_neon
mov x13, #\eob_half
b inv_txfm_add_16x16_neon
endfunc
.endm
def_fn_16x16 dct, dct, 36
def_fn_16x16 identity, identity, 36
def_fn_16x16 dct, adst, 36
def_fn_16x16 dct, flipadst, 36
def_fn_16x16 dct, identity, 8
def_fn_16x16 adst, dct, 36
def_fn_16x16 adst, adst, 36
def_fn_16x16 adst, flipadst, 36
def_fn_16x16 flipadst, dct, 36
def_fn_16x16 flipadst, adst, 36
def_fn_16x16 flipadst, flipadst, 36
def_fn_16x16 identity, dct, 8
function inv_txfm_add_16x4_neon
mov x15, x30
movi v4.8h, #0
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().4h}, [x2]
st1 {v4.4h}, [x2], #8
.endr
blr x4
ins v16.d[1], v20.d[0]
ins v17.d[1], v21.d[0]
ins v18.d[1], v22.d[0]
ins v19.d[1], v23.d[0]
.irp i, 16, 17, 18, 19
srshr v\i\().8h, v\i\().8h, #1
.endr
transpose_4x8h v16, v17, v18, v19, v2, v3, v4, v5
blr x5
mov x6, x0
load_add_store_8x4 x6, x7
ins v24.d[1], v28.d[0]
ins v25.d[1], v29.d[0]
ins v26.d[1], v30.d[0]
ins v27.d[1], v31.d[0]
srshr v16.8h, v24.8h, #1
srshr v17.8h, v25.8h, #1
srshr v18.8h, v26.8h, #1
srshr v19.8h, v27.8h, #1
transpose_4x8h v16, v17, v18, v19, v2, v3, v4, v5
blr x5
add x6, x0, #8
load_add_store_8x4 x6, x7
br x15
endfunc
function inv_txfm_add_4x16_neon
mov x15, x30
movi v2.8h, #0
mov x11, #32
cmp w3, w13
b.lt 1f
add x6, x2, #16
.irp i, 16, 17, 18, 19
ld1 {v\i\().8h}, [x6]
st1 {v2.8h}, [x6], x11
.endr
blr x4
srshr v24.8h, v16.8h, #1
srshr v25.8h, v17.8h, #1
srshr v26.8h, v18.8h, #1
srshr v27.8h, v19.8h, #1
transpose_4x8h v24, v25, v26, v27, v4, v5, v6, v7
ins v28.d[0], v24.d[1]
ins v29.d[0], v25.d[1]
ins v30.d[0], v26.d[1]
ins v31.d[0], v27.d[1]
b 2f
1:
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
movi v\i\().4h, #0
.endr
2:
movi v2.8h, #0
.irp i, 16, 17, 18, 19
ld1 {v\i\().8h}, [x2]
st1 {v2.8h}, [x2], x11
.endr
blr x4
.irp i, 16, 17, 18, 19
srshr v\i\().8h, v\i\().8h, #1
.endr
transpose_4x8h v16, v17, v18, v19, v4, v5, v6, v7
ins v20.d[0], v16.d[1]
ins v21.d[0], v17.d[1]
ins v22.d[0], v18.d[1]
ins v23.d[0], v19.d[1]
blr x5
load_add_store_4x16 x0, x6
br x15
endfunc
.macro def_fn_416 w, h, txfm1, txfm2, eob_half
function inv_txfm_add_\txfm1\()_\txfm2\()_\w\()x\h\()_neon, export=1
.ifc \txfm1\()_\txfm2, dct_dct
idct_dc \w, \h, 1
.endif
.if \w == 4
adr x4, inv_\txfm1\()_8x\w\()_neon
adr x5, inv_\txfm2\()_4x\h\()_neon
mov w13, #\eob_half
.else
adr x4, inv_\txfm1\()_4x\w\()_neon
adr x5, inv_\txfm2\()_8x\h\()_neon
.endif
b inv_txfm_add_\w\()x\h\()_neon
endfunc
.endm
.macro def_fns_416 w, h
def_fn_416 \w, \h, dct, dct, 29
def_fn_416 \w, \h, identity, identity, 29
def_fn_416 \w, \h, dct, adst, 29
def_fn_416 \w, \h, dct, flipadst, 29
def_fn_416 \w, \h, dct, identity, 8
def_fn_416 \w, \h, adst, dct, 29
def_fn_416 \w, \h, adst, adst, 29
def_fn_416 \w, \h, adst, flipadst, 29
def_fn_416 \w, \h, flipadst, dct, 29
def_fn_416 \w, \h, flipadst, adst, 29
def_fn_416 \w, \h, flipadst, flipadst, 29
def_fn_416 \w, \h, identity, dct, 32
def_fn_416 \w, \h, adst, identity, 8
def_fn_416 \w, \h, flipadst, identity, 8
def_fn_416 \w, \h, identity, adst, 32
def_fn_416 \w, \h, identity, flipadst, 32
.endm
def_fns_416 4, 16
def_fns_416 16, 4
function inv_txfm_add_16x8_neon
mov x15, x30
movi v4.8h, #0
mov w16, #2896*8
dup v0.4h, w16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x2]
st1 {v4.8h}, [x2], #16
.endr
scale_input .8h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
scale_input .8h, v0.h[0], v24, v25, v26, v27, v28, v29, v30, v31
blr x4
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
srshr v\i\().8h, v\i\().8h, #1
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
blr x5
mov x6, x0
load_add_store_8x8 x6, x7
srshr v16.8h, v24.8h, #1
srshr v17.8h, v25.8h, #1
srshr v18.8h, v26.8h, #1
srshr v19.8h, v27.8h, #1
srshr v20.8h, v28.8h, #1
srshr v21.8h, v29.8h, #1
srshr v22.8h, v30.8h, #1
srshr v23.8h, v31.8h, #1
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
blr x5
add x0, x0, #8
load_add_store_8x8 x0, x7
br x15
endfunc
function inv_txfm_add_8x16_neon
mov x15, x30
movi v4.8h, #0
mov w16, #2896*8
dup v0.4h, w16
mov x11, #32
cmp w3, w13
b.lt 1f
add x6, x2, #16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
ld1 {v\i\().8h}, [x6]
st1 {v4.8h}, [x6], x11
.endr
scale_input .8h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
blr x4
srshr v24.8h, v16.8h, #1
srshr v25.8h, v17.8h, #1
srshr v26.8h, v18.8h, #1
srshr v27.8h, v19.8h, #1
srshr v28.8h, v20.8h, #1
srshr v29.8h, v21.8h, #1
srshr v30.8h, v22.8h, #1
srshr v31.8h, v23.8h, #1
transpose_8x8h v24, v25, v26, v27, v28, v29, v30, v31, v2, v3
b 2f
1:
.irp i, 24, 25, 26, 27, 28, 29, 30, 31
movi v\i\().8h, #0
.endr
2:
movi v4.8h, #0
mov w16, #2896*8
dup v0.4h, w16
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
ld1 {v\i\().8h}, [x2]
st1 {v4.8h}, [x2], x11
.endr
scale_input .8h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
blr x4
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
srshr v\i\().8h, v\i\().8h, #1
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v2, v3
blr x5
load_add_store_8x16 x0, x6
br x15
endfunc
.macro def_fn_816 w, h, txfm1, txfm2, eob_half
function inv_txfm_add_\txfm1\()_\txfm2\()_\w\()x\h\()_neon, export=1
.ifc \txfm1\()_\txfm2, dct_dct
idct_dc \w, \h, 1
.endif
adr x4, inv_\txfm1\()_8x\w\()_neon
adr x5, inv_\txfm2\()_8x\h\()_neon
.if \w == 8
mov x13, #\eob_half
.endif
b inv_txfm_add_\w\()x\h\()_neon
endfunc
.endm
.macro def_fns_816 w, h
def_fn_816 \w, \h, dct, dct, 43
def_fn_816 \w, \h, identity, identity, 43
def_fn_816 \w, \h, dct, adst, 43
def_fn_816 \w, \h, dct, flipadst, 43
def_fn_816 \w, \h, dct, identity, 8
def_fn_816 \w, \h, adst, dct, 43
def_fn_816 \w, \h, adst, adst, 43
def_fn_816 \w, \h, adst, flipadst, 43
def_fn_816 \w, \h, flipadst, dct, 43
def_fn_816 \w, \h, flipadst, adst, 43
def_fn_816 \w, \h, flipadst, flipadst, 43
def_fn_816 \w, \h, identity, dct, 64
def_fn_816 \w, \h, adst, identity, 8
def_fn_816 \w, \h, flipadst, identity, 8
def_fn_816 \w, \h, identity, adst, 64
def_fn_816 \w, \h, identity, flipadst, 64
.endm
def_fns_816 8, 16
def_fns_816 16, 8
function inv_dct32_odd_8x16_neon
movrel x16, idct_coeffs, 2*16
ld1 {v0.8h, v1.8h}, [x16]
sub x16, x16, #2*16
smull_smlsl v2, v3, v16, v31, v0.h[0], v0.h[1], .8h // -> t16a
smull_smlal v4, v5, v16, v31, v0.h[1], v0.h[0], .8h // -> t31a
smull_smlsl v6, v7, v24, v23, v0.h[2], v0.h[3], .8h // -> t17a
rshrn_sz v16, v2, v3, #12, .8h // t16a
rshrn_sz v31, v4, v5, #12, .8h // t31a
smull_smlal v2, v3, v24, v23, v0.h[3], v0.h[2], .8h // -> t30a
smull_smlsl v4, v5, v20, v27, v0.h[4], v0.h[5], .8h // -> t18a
rshrn_sz v24, v6, v7, #12, .8h // t17a
rshrn_sz v23, v2, v3, #12, .8h // t30a
smull_smlal v6, v7, v20, v27, v0.h[5], v0.h[4], .8h // -> t29a
smull_smlsl v2, v3, v28, v19, v0.h[6], v0.h[7], .8h // -> t19a
rshrn_sz v20, v4, v5, #12, .8h // t18a
rshrn_sz v27, v6, v7, #12, .8h // t29a
smull_smlal v4, v5, v28, v19, v0.h[7], v0.h[6], .8h // -> t28a
smull_smlsl v6, v7, v18, v29, v1.h[0], v1.h[1], .8h // -> t20a
rshrn_sz v28, v2, v3, #12, .8h // t19a
rshrn_sz v19, v4, v5, #12, .8h // t28a
smull_smlal v2, v3, v18, v29, v1.h[1], v1.h[0], .8h // -> t27a
smull_smlsl v4, v5, v26, v21, v1.h[2], v1.h[3], .8h // -> t21a
rshrn_sz v18, v6, v7, #12, .8h // t20a
rshrn_sz v29, v2, v3, #12, .8h // t27a
smull_smlal v6, v7, v26, v21, v1.h[3], v1.h[2], .8h // -> t26a
smull_smlsl v2, v3, v22, v25, v1.h[4], v1.h[5], .8h // -> t22a
rshrn_sz v26, v4, v5, #12, .8h // t21a
rshrn_sz v21, v6, v7, #12, .8h // t26a
smull_smlal v4, v5, v22, v25, v1.h[5], v1.h[4], .8h // -> t25a
smull_smlsl v6, v7, v30, v17, v1.h[6], v1.h[7], .8h // -> t23a
rshrn_sz v22, v2, v3, #12, .8h // t22a
rshrn_sz v25, v4, v5, #12, .8h // t25a
smull_smlal v2, v3, v30, v17, v1.h[7], v1.h[6], .8h // -> t24a
rshrn_sz v30, v6, v7, #12, .8h // t23a
rshrn_sz v17, v2, v3, #12, .8h // t24a
ld1 {v0.8h}, [x16]
sqsub v2.8h, v16.8h, v24.8h // t17
sqadd v16.8h, v16.8h, v24.8h // t16
sqsub v3.8h, v31.8h, v23.8h // t30
sqadd v31.8h, v31.8h, v23.8h // t31
sqsub v24.8h, v28.8h, v20.8h // t18
sqadd v28.8h, v28.8h, v20.8h // t19
sqadd v23.8h, v18.8h, v26.8h // t20
sqsub v18.8h, v18.8h, v26.8h // t21
sqsub v20.8h, v30.8h, v22.8h // t22
sqadd v30.8h, v30.8h, v22.8h // t23
sqadd v26.8h, v17.8h, v25.8h // t24
sqsub v17.8h, v17.8h, v25.8h // t25
sqsub v22.8h, v29.8h, v21.8h // t26
sqadd v29.8h, v29.8h, v21.8h // t27
sqadd v25.8h, v19.8h, v27.8h // t28
sqsub v19.8h, v19.8h, v27.8h // t29
smull_smlsl v4, v5, v3, v2, v0.h[4], v0.h[5], .8h // -> t17a
smull_smlal v6, v7, v3, v2, v0.h[5], v0.h[4], .8h // -> t30a
smull_smlal v2, v3, v19, v24, v0.h[5], v0.h[4], .8h // -> t18a
rshrn_sz v21, v4, v5, #12, .8h // t17a
rshrn_sz v27, v6, v7, #12, .8h // t30a
neg v2.4s, v2.4s // -> t18a
neg v3.4s, v3.4s // -> t18a
smull_smlsl v4, v5, v19, v24, v0.h[4], v0.h[5], .8h // -> t29a
smull_smlsl v6, v7, v22, v18, v0.h[6], v0.h[7], .8h // -> t21a
rshrn_sz v19, v2, v3, #12, .8h // t18a
rshrn_sz v24, v4, v5, #12, .8h // t29a
smull_smlal v2, v3, v22, v18, v0.h[7], v0.h[6], .8h // -> t26a
smull_smlal v4, v5, v17, v20, v0.h[7], v0.h[6], .8h // -> t22a
rshrn_sz v22, v6, v7, #12, .8h // t21a
rshrn_sz v18, v2, v3, #12, .8h // t26a
neg v4.4s, v4.4s // -> t22a
neg v5.4s, v5.4s // -> t22a
smull_smlsl v6, v7, v17, v20, v0.h[6], v0.h[7], .8h // -> t25a
rshrn_sz v17, v4, v5, #12, .8h // t22a
rshrn_sz v20, v6, v7, #12, .8h // t25a
sqsub v2.8h, v27.8h, v24.8h // t29
sqadd v27.8h, v27.8h, v24.8h // t30
sqsub v3.8h, v21.8h, v19.8h // t18
sqadd v21.8h, v21.8h, v19.8h // t17
sqsub v24.8h, v16.8h, v28.8h // t19a
sqadd v16.8h, v16.8h, v28.8h // t16a
sqsub v19.8h, v30.8h, v23.8h // t20a
sqadd v30.8h, v30.8h, v23.8h // t23a
sqsub v28.8h, v17.8h, v22.8h // t21
sqadd v17.8h, v17.8h, v22.8h // t22
sqadd v23.8h, v26.8h, v29.8h // t24a
sqsub v26.8h, v26.8h, v29.8h // t27a
sqadd v22.8h, v20.8h, v18.8h // t25
sqsub v20.8h, v20.8h, v18.8h // t26
sqsub v29.8h, v31.8h, v25.8h // t28a
sqadd v31.8h, v31.8h, v25.8h // t31a
smull_smlsl v4, v5, v2, v3, v0.h[2], v0.h[3], .8h // -> t18a
smull_smlal v6, v7, v2, v3, v0.h[3], v0.h[2], .8h // -> t29a
smull_smlsl v2, v3, v29, v24, v0.h[2], v0.h[3], .8h // -> t19
rshrn_sz v18, v4, v5, #12, .8h // t18a
rshrn_sz v25, v6, v7, #12, .8h // t29a
smull_smlal v4, v5, v29, v24, v0.h[3], v0.h[2], .8h // -> t28
smull_smlal v6, v7, v26, v19, v0.h[3], v0.h[2], .8h // -> t20
rshrn_sz v29, v2, v3, #12, .8h // t19
rshrn_sz v24, v4, v5, #12, .8h // t28
neg v6.4s, v6.4s // -> t20
neg v7.4s, v7.4s // -> t20
smull_smlsl v2, v3, v26, v19, v0.h[2], v0.h[3], .8h // -> t27
smull_smlal v4, v5, v20, v28, v0.h[3], v0.h[2], .8h // -> t21a
rshrn_sz v26, v6, v7, #12, .8h // t20
rshrn_sz v19, v2, v3, #12, .8h // t27
neg v4.4s, v4.4s // -> t21a
neg v5.4s, v5.4s // -> t21a
smull_smlsl v6, v7, v20, v28, v0.h[2], v0.h[3], .8h // -> t26a
rshrn_sz v20, v4, v5, #12, .8h // t21a
rshrn_sz v28, v6, v7, #12, .8h // t26a
sqsub v2.8h, v16.8h, v30.8h // t23
sqadd v16.8h, v16.8h, v30.8h // t16 = out16
sqsub v3.8h, v31.8h, v23.8h // t24
sqadd v31.8h, v31.8h, v23.8h // t31 = out31
sqsub v23.8h, v21.8h, v17.8h // t22a
sqadd v17.8h, v21.8h, v17.8h // t17a = out17
sqadd v30.8h, v27.8h, v22.8h // t30a = out30
sqsub v21.8h, v27.8h, v22.8h // t25a
sqsub v27.8h, v18.8h, v20.8h // t21
sqadd v18.8h, v18.8h, v20.8h // t18 = out18
sqadd v4.8h, v29.8h, v26.8h // t19a = out19
sqsub v26.8h, v29.8h, v26.8h // t20a
sqadd v29.8h, v25.8h, v28.8h // t29 = out29
sqsub v25.8h, v25.8h, v28.8h // t26
sqadd v28.8h, v24.8h, v19.8h // t28a = out28
sqsub v24.8h, v24.8h, v19.8h // t27a
mov v19.16b, v4.16b // out19
smull_smlsl v4, v5, v24, v26, v0.h[0], v0.h[0], .8h // -> t20
smull_smlal v6, v7, v24, v26, v0.h[0], v0.h[0], .8h // -> t27
rshrn_sz v20, v4, v5, #12, .8h // t20
rshrn_sz v22, v6, v7, #12, .8h // t27
smull_smlal v4, v5, v25, v27, v0.h[0], v0.h[0], .8h // -> t26a
smull_smlsl v6, v7, v25, v27, v0.h[0], v0.h[0], .8h // -> t21a
mov v27.16b, v22.16b // t27
rshrn_sz v26, v4, v5, #12, .8h // t26a
smull_smlsl v24, v25, v21, v23, v0.h[0], v0.h[0], .8h // -> t22
smull_smlal v4, v5, v21, v23, v0.h[0], v0.h[0], .8h // -> t25
rshrn_sz v21, v6, v7, #12, .8h // t21a
rshrn_sz v22, v24, v25, #12, .8h // t22
rshrn_sz v25, v4, v5, #12, .8h // t25
smull_smlsl v4, v5, v3, v2, v0.h[0], v0.h[0], .8h // -> t23a
smull_smlal v6, v7, v3, v2, v0.h[0], v0.h[0], .8h // -> t24a
rshrn_sz v23, v4, v5, #12, .8h // t23a
rshrn_sz v24, v6, v7, #12, .8h // t24a
ret
endfunc
.macro def_horz_32 scale=0, shift=2, suffix
function inv_txfm_horz\suffix\()_dct_32x8_neon
mov x14, x30
movi v7.8h, #0
lsl x8, x8, #1
.if \scale
mov w16, #2896*8
dup v0.4h, w16
.endif
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h
ld1 {\i}, [x7]
st1 {v7.8h}, [x7], x8
.endr
sub x7, x7, x8, lsl #4
add x7, x7, x8, lsr #1
.if \scale
scale_input .8h, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
scale_input .8h, v0.h[0], v24, v25, v26, v27, v28, v29, v30, v31
.endif
bl inv_dct_8x16_neon
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
transpose_8x8h v24, v25, v26, v27, v28, v29, v30, v31, v4, v5
.macro store1 r0, r1
st1 {\r0}, [x6], #16
st1 {\r1}, [x6], #16
add x6, x6, #32
.endm
store1 v16.8h, v24.8h
store1 v17.8h, v25.8h
store1 v18.8h, v26.8h
store1 v19.8h, v27.8h
store1 v20.8h, v28.8h
store1 v21.8h, v29.8h
store1 v22.8h, v30.8h
store1 v23.8h, v31.8h
.purgem store1
sub x6, x6, #64*8
movi v7.8h, #0
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h
ld1 {\i}, [x7]
st1 {v7.8h}, [x7], x8
.endr
.if \scale
// This relies on the fact that the idct also leaves the right coeff in v0.h[1]
scale_input .8h, v0.h[1], v16, v17, v18, v19, v20, v21, v22, v23
scale_input .8h, v0.h[1], v24, v25, v26, v27, v28, v29, v30, v31
.endif
bl inv_dct32_odd_8x16_neon
transpose_8x8h v31, v30, v29, v28, v27, v26, v25, v24, v4, v5
transpose_8x8h v23, v22, v21, v20, v19, v18, v17, v16, v4, v5
.macro store2 r0, r1, shift
ld1 {v4.8h}, [x6], #16
ld1 {v5.8h}, [x6]
sqsub v7.8h, v4.8h, \r0
sqsub v6.8h, v5.8h, \r1
sub x6, x6, #16
sqadd v4.8h, v4.8h, \r0
sqadd v5.8h, v5.8h, \r1
rev64 v6.8h, v6.8h
rev64 v7.8h, v7.8h
srshr v4.8h, v4.8h, #\shift
srshr v5.8h, v5.8h, #\shift
srshr v6.8h, v6.8h, #\shift
srshr v7.8h, v7.8h, #\shift
st1 {v4.8h}, [x6], #16
ext v6.16b, v6.16b, v6.16b, #8
st1 {v5.8h}, [x6], #16
ext v7.16b, v7.16b, v7.16b, #8
st1 {v6.8h}, [x6], #16
st1 {v7.8h}, [x6], #16
.endm
store2 v31.8h, v23.8h, \shift
store2 v30.8h, v22.8h, \shift
store2 v29.8h, v21.8h, \shift
store2 v28.8h, v20.8h, \shift
store2 v27.8h, v19.8h, \shift
store2 v26.8h, v18.8h, \shift
store2 v25.8h, v17.8h, \shift
store2 v24.8h, v16.8h, \shift
.purgem store2
br x14
endfunc
.endm
def_horz_32 scale=0, shift=2
def_horz_32 scale=1, shift=1, suffix=_scale
function inv_txfm_add_vert_dct_8x32_neon
mov x14, x30
lsl x8, x8, #1
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x7], x8
.endr
sub x7, x7, x8, lsl #4
bl inv_dct_8x16_neon
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
st1 {v\i\().8h}, [x7], x8
.endr
sub x7, x7, x8, lsl #4
add x7, x7, x8, lsr #1
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
ld1 {v\i\().8h}, [x7], x8
.endr
sub x7, x7, x8, lsl #4
sub x7, x7, x8, lsr #1
bl inv_dct32_odd_8x16_neon
neg x9, x8
mov x10, x6
.macro combine r0, r1, r2, r3, op, stride
ld1 {v5.8h}, [x7], \stride
ld1 {v2.8b}, [x10], x1
ld1 {v6.8h}, [x7], \stride
ld1 {v3.8b}, [x10], x1
\op v5.8h, v5.8h, \r0
ld1 {v7.8h}, [x7], \stride
ld1 {v4.8b}, [x10], x1
srshr v5.8h, v5.8h, #4
\op v6.8h, v6.8h, \r1
uaddw v5.8h, v5.8h, v2.8b
srshr v6.8h, v6.8h, #4
\op v7.8h, v7.8h, \r2
sqxtun v2.8b, v5.8h
ld1 {v5.8h}, [x7], \stride
uaddw v6.8h, v6.8h, v3.8b
srshr v7.8h, v7.8h, #4
\op v5.8h, v5.8h, \r3
st1 {v2.8b}, [x6], x1
ld1 {v2.8b}, [x10], x1
sqxtun v3.8b, v6.8h
uaddw v7.8h, v7.8h, v4.8b
srshr v5.8h, v5.8h, #4
st1 {v3.8b}, [x6], x1
sqxtun v4.8b, v7.8h
uaddw v5.8h, v5.8h, v2.8b
st1 {v4.8b}, [x6], x1
sqxtun v2.8b, v5.8h
st1 {v2.8b}, [x6], x1
.endm
combine v31.8h, v30.8h, v29.8h, v28.8h, sqadd, x8
combine v27.8h, v26.8h, v25.8h, v24.8h, sqadd, x8
combine v23.8h, v22.8h, v21.8h, v20.8h, sqadd, x8
combine v19.8h, v18.8h, v17.8h, v16.8h, sqadd, x8
sub x7, x7, x8
combine v16.8h, v17.8h, v18.8h, v19.8h, sqsub, x9
combine v20.8h, v21.8h, v22.8h, v23.8h, sqsub, x9
combine v24.8h, v25.8h, v26.8h, v27.8h, sqsub, x9
combine v28.8h, v29.8h, v30.8h, v31.8h, sqsub, x9
.purgem combine
br x14
endfunc
const eob_32x32
.short 36, 136, 300, 1024
endconst
const eob_16x32
.short 36, 151, 279, 512
endconst
const eob_16x32_shortside
.short 36, 512
endconst
const eob_8x32
.short 43, 107, 171, 256
endconst
function inv_txfm_add_identity_identity_32x32_neon, export=1
movi v0.8h, #0
movrel x13, eob_32x32
mov x8, #2*32
1:
mov w9, #0
movrel x12, eob_32x32
2:
add w9, w9, #8
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
ld1 {v\i\().8h}, [x2]
st1 {v0.8h}, [x2], x8
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
load_add_store_8x8 x0, x7, shiftbits=2
ldrh w11, [x12], #2
sub x0, x0, x1, lsl #3
add x0, x0, #8
cmp w3, w11
b.ge 2b
ldrh w11, [x13], #2
cmp w3, w11
b.lt 9f
sub x0, x0, w9, uxtw
add x0, x0, x1, lsl #3
msub x2, x8, x9, x2
add x2, x2, #2*8
b 1b
9:
ret
endfunc
.macro shift_8_regs op, shift
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h
\op \i, \i, #\shift
.endr
.endm
.macro def_identity_1632 w, h, wshort, hshort
function inv_txfm_add_identity_identity_\w\()x\h\()_neon, export=1
mov w16, #2896*8
mov w17, #2*5793
dup v1.4h, w16
movi v0.8h, #0
mov v1.h[1], w17
movrel x13, eob_16x32\hshort
mov x8, #2*\h
1:
mov w9, #0
movrel x12, eob_16x32\wshort
2:
add w9, w9, #8
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h
ld1 {\i}, [x2]
st1 {v0.8h}, [x2], x8
.endr
scale_input .8h, v1.h[0], v16, v17, v18, v19, v20, v21, v22, v23
.if \w == 16
// 16x32
scale_wide .8h, v1.h[1], v16, v17, v18, v19, v20, v21, v22, v23
shift_8_regs srshr, 1
.else
// 32x16
shift_8_regs shl, 1
scale_wide .8h, v1.h[1], v16, v17, v18, v19, v20, v21, v22, v23
.endif
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
.if \w == 16
load_add_store_8x8 x0, x7, shiftbits=2
.else
load_add_store_8x8 x0, x7, shiftbits=4
.endif
ldrh w11, [x12], #2
sub x0, x0, x1, lsl #3
add x0, x0, #8
cmp w3, w11
b.ge 2b
ldrh w11, [x13], #2
cmp w3, w11
b.lt 9f
sub x0, x0, w9, uxtw
add x0, x0, x1, lsl #3
msub x2, x8, x9, x2
add x2, x2, #2*8
b 1b
9:
ret
endfunc
.endm
def_identity_1632 16, 32, _shortside,
def_identity_1632 32, 16, , _shortside
.macro def_identity_832 w, h
function inv_txfm_add_identity_identity_\w\()x\h\()_neon, export=1
movi v0.8h, #0
movrel x13, eob_8x32
mov w8, #2*\h
1:
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h
ld1 {\i}, [x2]
st1 {v0.8h}, [x2], x8
.endr
.if \w == 8
// 8x32
shift_8_regs srshr, 1
.endif
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
.if \w == 8
load_add_store_8x8 x0, x7, shiftbits=2
.else
load_add_store_8x8 x0, x7, shiftbits=3
.endif
ldrh w12, [x13], #2
cmp w3, w12
b.lt 9f
.if \w == 8
sub x2, x2, x8, lsl #3
add x2, x2, #2*8
.else
sub x0, x0, x1, lsl #3
add x0, x0, #8
.endif
b 1b
9:
ret
endfunc
.endm
def_identity_832 8, 32
def_identity_832 32, 8
function inv_txfm_add_dct_dct_32x32_neon, export=1
idct_dc 32, 32, 2
mov x15, x30
sub sp, sp, #2048
movrel x13, eob_32x32
ldrh w12, [x13], #2
.irp i, 0, 8, 16, 24
add x6, sp, #(\i*32*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
.if \i < 24
ldrh w12, [x13], #2
.endif
.endif
add x7, x2, #(\i*2)
mov x8, #32*2
bl inv_txfm_horz_dct_32x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #4
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8, 16, 24
add x6, x0, #(\i)
add x7, sp, #(\i*2)
mov x8, #32*2
bl inv_txfm_add_vert_dct_8x32_neon
.endr
add sp, sp, #2048
br x15
endfunc
function inv_txfm_add_dct_dct_16x32_neon, export=1
idct_dc 16, 32, 1
mov x15, x30
sub sp, sp, #1024
movrel x13, eob_16x32
ldrh w12, [x13], #2
adr x4, inv_dct_8x16_neon
.irp i, 0, 8, 16, 24
add x6, sp, #(\i*16*2)
add x7, x2, #(\i*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
.if \i < 24
ldrh w12, [x13], #2
.endif
.endif
mov x8, #2*32
bl inv_txfm_horz_scale_16x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #8
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8
add x6, x0, #(\i)
add x7, sp, #(\i*2)
mov x8, #16*2
bl inv_txfm_add_vert_dct_8x32_neon
.endr
add sp, sp, #1024
br x15
endfunc
function inv_txfm_add_dct_dct_32x16_neon, export=1
idct_dc 32, 16, 1
mov x15, x30
sub sp, sp, #1024
adr x5, inv_dct_8x16_neon
.irp i, 0, 8
add x6, sp, #(\i*32*2)
add x7, x2, #(\i*2)
.if \i > 0
mov w8, #(16 - \i)
cmp w3, #36
b.lt 1f
.endif
mov x8, #2*16
bl inv_txfm_horz_scale_dct_32x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #4
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8, 16, 24
add x6, x0, #(\i)
add x7, sp, #(\i*2)
mov x8, #32*2
bl inv_txfm_add_vert_8x16_neon
.endr
add sp, sp, #1024
br x15
endfunc
function inv_txfm_add_dct_dct_8x32_neon, export=1
idct_dc 8, 32, 2
mov x15, x30
sub sp, sp, #512
movrel x13, eob_8x32
movi v28.8h, #0
mov x8, #2*32
mov w9, #32
mov x6, sp
mov x7, x2
1:
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
ld1 {v\i\().8h}, [x7]
st1 {v28.8h}, [x7], x8
.endr
ldrh w12, [x13], #2
sub w9, w9, #8
sub x7, x7, x8, lsl #3
add x7, x7, #2*8
bl inv_dct_8x8_neon
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
srshr v\i\().8h, v\i\().8h, #2
.endr
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v24, v25
cmp w3, w12
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
st1 {v\i\().8h}, [x6], #16
.endr
b.ge 1b
cbz w9, 3f
movi v29.8h, #0
movi v30.8h, #0
movi v31.8h, #0
2:
subs w9, w9, #8
.rept 2
st1 {v28.8h,v29.8h,v30.8h,v31.8h}, [x6], #64
.endr
b.gt 2b
3:
mov x6, x0
mov x7, sp
mov x8, #8*2
bl inv_txfm_add_vert_dct_8x32_neon
add sp, sp, #512
br x15
endfunc
function inv_txfm_add_dct_dct_32x8_neon, export=1
idct_dc 32, 8, 2
mov x15, x30
sub sp, sp, #512
mov x6, sp
mov x7, x2
mov x8, #8*2
bl inv_txfm_horz_dct_32x8_neon
mov x8, #2*32
mov w9, #0
1:
add x6, x0, x9
add x7, sp, x9, lsl #1 // #(\i*2)
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
ld1 {v\i\().8h}, [x7], x8
.endr
add w9, w9, #8
bl inv_dct_8x8_neon
cmp w9, #32
load_add_store_8x8 x6, x7
b.lt 1b
add sp, sp, #512
br x15
endfunc
function inv_dct64_step1_neon
// in1/31/17/15 -> t32a/33/34a/35/60/61a/62/63a
// in7/25/23/ 9 -> t56a/57/58a/59/36/37a/38/39a
// in5/27/21/11 -> t40a/41/42a/43/52/53a/54/55a
// in3/29/19/13 -> t48a/49/50a/51/44/45a/46/47a
ld1 {v0.8h, v1.8h}, [x17], #32
sqrdmulh v23.8h, v16.8h, v0.h[1] // t63a
sqrdmulh v16.8h, v16.8h, v0.h[0] // t32a
sqrdmulh v22.8h, v17.8h, v0.h[2] // t62a
sqrdmulh v17.8h, v17.8h, v0.h[3] // t33a
sqrdmulh v21.8h, v18.8h, v0.h[5] // t61a
sqrdmulh v18.8h, v18.8h, v0.h[4] // t34a
sqrdmulh v20.8h, v19.8h, v0.h[6] // t60a
sqrdmulh v19.8h, v19.8h, v0.h[7] // t35a
sqadd v24.8h, v16.8h, v17.8h // t32
sqsub v25.8h, v16.8h, v17.8h // t33
sqsub v26.8h, v19.8h, v18.8h // t34
sqadd v27.8h, v19.8h, v18.8h // t35
sqadd v28.8h, v20.8h, v21.8h // t60
sqsub v29.8h, v20.8h, v21.8h // t61
sqsub v30.8h, v23.8h, v22.8h // t62
sqadd v31.8h, v23.8h, v22.8h // t63
smull_smlal v2, v3, v29, v26, v1.h[0], v1.h[1], .8h // -> t34a
smull_smlsl v4, v5, v29, v26, v1.h[1], v1.h[0], .8h // -> t61a
neg v2.4s, v2.4s // t34a
neg v3.4s, v3.4s // t34a
smull_smlsl v6, v7, v30, v25, v1.h[1], v1.h[0], .8h // -> t33a
rshrn_sz v26, v2, v3, #12, .8h // t34a
smull_smlal v2, v3, v30, v25, v1.h[0], v1.h[1], .8h // -> t62a
rshrn_sz v29, v4, v5, #12, .8h // t61a
rshrn_sz v25, v6, v7, #12, .8h // t33a
rshrn_sz v30, v2, v3, #12, .8h // t62a
sqadd v16.8h, v24.8h, v27.8h // t32a
sqsub v19.8h, v24.8h, v27.8h // t35a
sqadd v17.8h, v25.8h, v26.8h // t33
sqsub v18.8h, v25.8h, v26.8h // t34
sqsub v20.8h, v31.8h, v28.8h // t60a
sqadd v23.8h, v31.8h, v28.8h // t63a
sqsub v21.8h, v30.8h, v29.8h // t61
sqadd v22.8h, v30.8h, v29.8h // t62
smull_smlal v2, v3, v21, v18, v1.h[2], v1.h[3], .8h // -> t61a
smull_smlsl v4, v5, v21, v18, v1.h[3], v1.h[2], .8h // -> t34a
smull_smlal v6, v7, v20, v19, v1.h[2], v1.h[3], .8h // -> t60
rshrn_sz v21, v2, v3, #12, .8h // t61a
rshrn_sz v18, v4, v5, #12, .8h // t34a
smull_smlsl v2, v3, v20, v19, v1.h[3], v1.h[2], .8h // -> t35
rshrn_sz v20, v6, v7, #12, .8h // t60
rshrn_sz v19, v2, v3, #12, .8h // t35
st1 {v16.8h, v17.8h, v18.8h, v19.8h}, [x6], #64
st1 {v20.8h, v21.8h, v22.8h, v23.8h}, [x6], #64
ret
endfunc
function inv_dct64_step2_neon
movrel x16, idct_coeffs
ld1 {v0.4h}, [x16]
1:
// t32a/33/34a/35/60/61a/62/63a
// t56a/57/58a/59/36/37a/38/39a
// t40a/41/42a/43/52/53a/54/55a
// t48a/49/50a/51/44/45a/46/47a
ldr q16, [x6, #2*8*0] // t32a
ldr q17, [x9, #2*8*8] // t39a
ldr q18, [x9, #2*8*0] // t63a
ldr q19, [x6, #2*8*8] // t56a
ldr q20, [x6, #2*8*16] // t40a
ldr q21, [x9, #2*8*24] // t47a
ldr q22, [x9, #2*8*16] // t55a
ldr q23, [x6, #2*8*24] // t48a
sqadd v24.8h, v16.8h, v17.8h // t32
sqsub v25.8h, v16.8h, v17.8h // t39
sqadd v26.8h, v18.8h, v19.8h // t63
sqsub v27.8h, v18.8h, v19.8h // t56
sqsub v28.8h, v21.8h, v20.8h // t40
sqadd v29.8h, v21.8h, v20.8h // t47
sqadd v30.8h, v23.8h, v22.8h // t48
sqsub v31.8h, v23.8h, v22.8h // t55
smull_smlal v2, v3, v27, v25, v0.h[3], v0.h[2], .8h // -> t56a
smull_smlsl v4, v5, v27, v25, v0.h[2], v0.h[3], .8h // -> t39a
smull_smlal v6, v7, v31, v28, v0.h[3], v0.h[2], .8h // -> t40a
rshrn_sz v25, v2, v3, #12, .8h // t56a
rshrn_sz v27, v4, v5, #12, .8h // t39a
neg v6.4s, v6.4s // t40a
neg v7.4s, v7.4s // t40a
smull_smlsl v2, v3, v31, v28, v0.h[2], v0.h[3], .8h // -> t55a
rshrn_sz v31, v6, v7, #12, .8h // t40a
rshrn_sz v28, v2, v3, #12, .8h // t55a
sqadd v16.8h, v24.8h, v29.8h // t32a
sqsub v19.8h, v24.8h, v29.8h // t47a
sqadd v17.8h, v27.8h, v31.8h // t39
sqsub v18.8h, v27.8h, v31.8h // t40
sqsub v20.8h, v26.8h, v30.8h // t48a
sqadd v23.8h, v26.8h, v30.8h // t63a
sqsub v21.8h, v25.8h, v28.8h // t55
sqadd v22.8h, v25.8h, v28.8h // t56
smull_smlsl v2, v3, v21, v18, v0.h[0], v0.h[0], .8h // -> t40a
smull_smlal v4, v5, v21, v18, v0.h[0], v0.h[0], .8h // -> t55a
smull_smlsl v6, v7, v20, v19, v0.h[0], v0.h[0], .8h // -> t47
rshrn_sz v18, v2, v3, #12, .8h // t40a
rshrn_sz v21, v4, v5, #12, .8h // t55a
smull_smlal v2, v3, v20, v19, v0.h[0], v0.h[0], .8h // -> t48
rshrn_sz v19, v6, v7, #12, .8h // t47
rshrn_sz v20, v2, v3, #12, .8h // t48
str q16, [x6, #2*8*0] // t32a
str q17, [x9, #2*8*0] // t39
str q18, [x6, #2*8*8] // t40a
str q19, [x9, #2*8*8] // t47
str q20, [x6, #2*8*16] // t48
str q21, [x9, #2*8*16] // t55a
str q22, [x6, #2*8*24] // t56
str q23, [x9, #2*8*24] // t63a
add x6, x6, #2*8
sub x9, x9, #2*8
cmp x6, x9
b.lt 1b
ret
endfunc
.macro load8 src, strd, zero, clear
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h
.if \clear
ld1 {\i}, [\src]
st1 {\zero}, [\src], \strd
.else
ld1 {\i}, [\src], \strd
.endif
.endr
.endm
.macro store16 dst
.irp i, v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h, v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h
st1 {\i}, [\dst], #16
.endr
.endm
.macro clear_upper8
.irp i, v24.8h, v25.8h, v26.8h, v27.8h, v28.8h, v29.8h, v30.8h, v31.8h
movi \i, #0
.endr
.endm
.macro movi_if reg, val, cond
.if \cond
movi \reg, \val
.endif
.endm
.macro movdup_if reg, gpr, val, cond
.if \cond
mov \gpr, \val
dup \reg, \gpr
.endif
.endm
.macro st1_if regs, dst, cond
.if \cond
st1 \regs, \dst
.endif
.endm
.macro str_if reg, dst, cond
.if \cond
str \reg, \dst
.endif
.endm
.macro stroff_if reg, dst, dstoff, cond
.if \cond
str \reg, \dst, \dstoff
.endif
.endm
.macro scale_if cond, c, r0, r1, r2, r3, r4, r5, r6, r7
.if \cond
scale_input .8h, \c, \r0, \r1, \r2, \r3, \r4, \r5, \r6, \r7
.endif
.endm
.macro def_dct64_func suffix, clear=0, scale=0
function inv_txfm_dct\suffix\()_8x64_neon
mov x14, x30
mov x6, sp
lsl x8, x8, #2
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
load8 x7, x8, v7.8h, \clear
clear_upper8
sub x7, x7, x8, lsl #3
add x7, x7, x8, lsr #1
scale_if \scale, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
bl inv_dct_8x16_neon
store16 x6
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
load8 x7, x8, v7.8h, \clear
clear_upper8
sub x7, x7, x8, lsl #3
lsr x8, x8, #1
sub x7, x7, x8, lsr #1
scale_if \scale, v0.h[0], v16, v17, v18, v19, v20, v21, v22, v23
bl inv_dct32_odd_8x16_neon
add x10, x6, #16*15
sub x6, x6, #16*16
mov x9, #-16
.macro store_addsub r0, r1, r2, r3
ld1 {v2.8h}, [x6], #16
ld1 {v3.8h}, [x6], #16
sqadd v6.8h, v2.8h, \r0
sqsub \r0, v2.8h, \r0
ld1 {v4.8h}, [x6], #16
sqadd v7.8h, v3.8h, \r1
sqsub \r1, v3.8h, \r1
ld1 {v5.8h}, [x6], #16
sqadd v2.8h, v4.8h, \r2
sub x6, x6, #16*4
sqsub \r2, v4.8h, \r2
st1 {v6.8h}, [x6], #16
st1 {\r0}, [x10], x9
sqadd v3.8h, v5.8h, \r3
sqsub \r3, v5.8h, \r3
st1 {v7.8h}, [x6], #16
st1 {\r1}, [x10], x9
st1 {v2.8h}, [x6], #16
st1 {\r2}, [x10], x9
st1 {v3.8h}, [x6], #16
st1 {\r3}, [x10], x9
.endm
store_addsub v31.8h, v30.8h, v29.8h, v28.8h
store_addsub v27.8h, v26.8h, v25.8h, v24.8h
store_addsub v23.8h, v22.8h, v21.8h, v20.8h
store_addsub v19.8h, v18.8h, v17.8h, v16.8h
.purgem store_addsub
add x6, x6, #2*8*16
movrel x17, idct64_coeffs
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
add x9, x7, x8, lsl #4 // offset 16
add x10, x7, x8, lsl #3 // offset 8
sub x9, x9, x8 // offset 15
sub x11, x10, x8 // offset 7
ld1 {v16.8h}, [x7] // in1 (offset 0)
ld1 {v17.8h}, [x9] // in31 (offset 15)
ld1 {v18.8h}, [x10] // in17 (offset 8)
ld1 {v19.8h}, [x11] // in15 (offset 7)
st1_if {v7.8h}, [x7], \clear
st1_if {v7.8h}, [x9], \clear
st1_if {v7.8h}, [x10], \clear
st1_if {v7.8h}, [x11], \clear
scale_if \scale, v0.h[0], v16, v17, v18, v19
bl inv_dct64_step1_neon
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
add x7, x7, x8, lsl #2 // offset 4
sub x9, x9, x8, lsl #2 // offset 11
sub x10, x7, x8 // offset 3
add x11, x9, x8 // offset 12
ld1 {v16.8h}, [x10] // in7 (offset 3)
ld1 {v17.8h}, [x11] // in25 (offset 12)
ld1 {v18.8h}, [x9] // in23 (offset 11)
ld1 {v19.8h}, [x7] // in9 (offset 4)
st1_if {v7.8h}, [x7], \clear
st1_if {v7.8h}, [x9], \clear
st1_if {v7.8h}, [x10], \clear
st1_if {v7.8h}, [x11], \clear
scale_if \scale, v0.h[0], v16, v17, v18, v19
bl inv_dct64_step1_neon
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
sub x10, x10, x8, lsl #1 // offset 1
sub x9, x9, x8, lsl #1 // offset 9
add x7, x7, x8 // offset 5
add x11, x11, x8 // offset 13
ldr q16, [x10, x8] // in5 (offset 2)
ldr q17, [x11] // in27 (offset 13)
ldr q18, [x9, x8] // in21 (offset 10)
ldr q19, [x7] // in11 (offset 5)
stroff_if q7, [x10, x8], \clear
str_if q7, [x11], \clear
stroff_if q7, [x9, x8], \clear
str_if q7, [x7], \clear
scale_if \scale, v0.h[0], v16, v17, v18, v19
bl inv_dct64_step1_neon
movdup_if v0.4h, w16, #2896*8, \scale
movi_if v7.8h, #0, \clear
ldr q16, [x10] // in3 (offset 1)
ldr q17, [x11, x8] // in29 (offset 14)
ldr q18, [x9] // in19 (offset 9)
ldr q19, [x7, x8] // in13 (offset 6)
str_if q7, [x10], \clear
stroff_if q7, [x11, x8], \clear
str_if q7, [x9], \clear
stroff_if q7, [x7, x8], \clear
scale_if \scale, v0.h[0], v16, v17, v18, v19
bl inv_dct64_step1_neon
sub x6, x6, #2*8*32
add x9, x6, #2*8*7
bl inv_dct64_step2_neon
br x14
endfunc
.endm
def_dct64_func
def_dct64_func _clear, clear=1
def_dct64_func _clear_scale, clear=1, scale=1
function inv_txfm_horz_dct_64x8_neon
mov x14, x30
mov x7, sp
add x8, sp, #2*8*(64 - 4)
add x9, x6, #2*56
mov x10, #2*64
mov x11, #-2*8*4
dup v7.8h, w12
1:
ld1 {v16.8h, v17.8h, v18.8h, v19.8h}, [x7], #64
ld1 {v28.8h, v29.8h, v30.8h, v31.8h}, [x8], x11
ld1 {v20.8h, v21.8h, v22.8h, v23.8h}, [x7], #64
ld1 {v24.8h, v25.8h, v26.8h, v27.8h}, [x8], x11
transpose_8x8h v16, v17, v18, v19, v20, v21, v22, v23, v4, v5
transpose_8x8h v31, v30, v29, v28, v27, v26, v25, v24, v4, v5
.macro store_addsub src0, src1, src2, src3
sqsub v1.8h, \src0, \src1
sqadd v0.8h, \src0, \src1
sqsub v3.8h, \src2, \src3
srshl v1.8h, v1.8h, v7.8h
sqadd v2.8h, \src2, \src3
srshl v0.8h, v0.8h, v7.8h
srshl v3.8h, v3.8h, v7.8h
rev64 v1.8h, v1.8h
srshl v2.8h, v2.8h, v7.8h
rev64 v3.8h, v3.8h
ext v1.16b, v1.16b, v1.16b, #8
st1 {v0.8h}, [x6], x10
ext v3.16b, v3.16b, v3.16b, #8
st1 {v1.8h}, [x9], x10
st1 {v2.8h}, [x6], x10
st1 {v3.8h}, [x9], x10
.endm
store_addsub v16.8h, v31.8h, v17.8h, v30.8h
store_addsub v18.8h, v29.8h, v19.8h, v28.8h
store_addsub v20.8h, v27.8h, v21.8h, v26.8h
store_addsub v22.8h, v25.8h, v23.8h, v24.8h
.purgem store_addsub
sub x6, x6, x10, lsl #3
sub x9, x9, x10, lsl #3
add x6, x6, #16
sub x9, x9, #16
cmp x7, x8
b.lt 1b
br x14
endfunc
function inv_txfm_add_vert_dct_8x64_neon
mov x14, x30
lsl x8, x8, #1
mov x7, sp
add x8, sp, #2*8*(64 - 4)
add x9, x6, x1, lsl #6
sub x9, x9, x1
neg x10, x1
mov x11, #-2*8*4
1:
ld1 {v16.8h, v17.8h, v18.8h, v19.8h}, [x7], #64
ld1 {v28.8h, v29.8h, v30.8h, v31.8h}, [x8], x11
ld1 {v20.8h, v21.8h, v22.8h, v23.8h}, [x7], #64
ld1 {v24.8h, v25.8h, v26.8h, v27.8h}, [x8], x11
.macro add_dest_addsub src0, src1, src2, src3
ld1 {v0.8b}, [x6], x1
ld1 {v1.8b}, [x9], x10
sqadd v4.8h, \src0, \src1
ld1 {v2.8b}, [x6]
sqsub v5.8h, \src0, \src1
ld1 {v3.8b}, [x9]
sqadd v6.8h, \src2, \src3
sqsub v7.8h, \src2, \src3
sub x6, x6, x1
sub x9, x9, x10
srshr v4.8h, v4.8h, #4
srshr v5.8h, v5.8h, #4
srshr v6.8h, v6.8h, #4
uaddw v4.8h, v4.8h, v0.8b
srshr v7.8h, v7.8h, #4
uaddw v5.8h, v5.8h, v1.8b
uaddw v6.8h, v6.8h, v2.8b
sqxtun v0.8b, v4.8h
uaddw v7.8h, v7.8h, v3.8b
sqxtun v1.8b, v5.8h
st1 {v0.8b}, [x6], x1
sqxtun v2.8b, v6.8h
st1 {v1.8b}, [x9], x10
sqxtun v3.8b, v7.8h
st1 {v2.8b}, [x6], x1
st1 {v3.8b}, [x9], x10
.endm
add_dest_addsub v16.8h, v31.8h, v17.8h, v30.8h
add_dest_addsub v18.8h, v29.8h, v19.8h, v28.8h
add_dest_addsub v20.8h, v27.8h, v21.8h, v26.8h
add_dest_addsub v22.8h, v25.8h, v23.8h, v24.8h
.purgem add_dest_addsub
cmp x7, x8
b.lt 1b
br x14
endfunc
.macro sub_sp space
#ifdef _WIN32
.if \space > 4096
sub x16, sp, #4096
ldr xzr, [x16]
sub sp, x16, #(\space - 4096)
.else
sub sp, sp, #\space
.endif
#else
.if \space >= 4096
sub sp, sp, #(\space)/4096*4096
.if (\space % 4096) != 0
sub sp, sp, #(\space)%4096
.endif
.else
sub sp, sp, #\space
.endif
#endif
.endm
function inv_txfm_add_dct_dct_64x64_neon, export=1
idct_dc 64, 64, 2
mov x15, x30
sub_sp 64*32*2+64*8*2
add x5, sp, #64*8*2
movrel x13, eob_32x32
.irp i, 0, 8, 16, 24
add x6, x5, #(\i*64*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
.endif
add x7, x2, #(\i*2)
mov x8, #32*2
mov x12, #-2 // shift
bl inv_txfm_dct_clear_8x64_neon
add x6, x5, #(\i*64*2)
bl inv_txfm_horz_dct_64x8_neon
.if \i < 24
ldrh w12, [x13], #2
.endif
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #2
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8, 16, 24, 32, 40, 48, 56
add x7, x5, #(\i*2)
mov x8, #64*2
bl inv_txfm_dct_8x64_neon
add x6, x0, #(\i)
bl inv_txfm_add_vert_dct_8x64_neon
.endr
add sp, x5, #64*32*2
br x15
endfunc
function inv_txfm_add_dct_dct_64x32_neon, export=1
idct_dc 64, 32, 1
mov x15, x30
sub_sp 64*32*2+64*8*2
add x5, sp, #64*8*2
movrel x13, eob_32x32
.irp i, 0, 8, 16, 24
add x6, x5, #(\i*64*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
.endif
add x7, x2, #(\i*2)
mov x8, #32*2
mov x12, #-1 // shift
bl inv_txfm_dct_clear_scale_8x64_neon
add x6, x5, #(\i*64*2)
bl inv_txfm_horz_dct_64x8_neon
.if \i < 24
ldrh w12, [x13], #2
.endif
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #2
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8, 16, 24, 32, 40, 48, 56
add x6, x0, #(\i)
add x7, x5, #(\i*2)
mov x8, #64*2
bl inv_txfm_add_vert_dct_8x32_neon
.endr
add sp, x5, #64*32*2
br x15
endfunc
function inv_txfm_add_dct_dct_32x64_neon, export=1
idct_dc 32, 64, 1
mov x15, x30
sub_sp 32*32*2+64*8*2
add x5, sp, #64*8*2
movrel x13, eob_32x32
ldrh w12, [x13], #2
.irp i, 0, 8, 16, 24
add x6, x5, #(\i*32*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
ldrh w12, [x13], #2
.endif
add x7, x2, #(\i*2)
mov x8, #32*2
bl inv_txfm_horz_scale_dct_32x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #4
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8, 16, 24
add x7, x5, #(\i*2)
mov x8, #32*2
bl inv_txfm_dct_8x64_neon
add x6, x0, #(\i)
bl inv_txfm_add_vert_dct_8x64_neon
.endr
add sp, x5, #32*32*2
br x15
endfunc
function inv_txfm_add_dct_dct_64x16_neon, export=1
idct_dc 64, 16, 2
mov x15, x30
sub_sp 64*16*2+64*8*2
add x4, sp, #64*8*2
movrel x13, eob_16x32
.irp i, 0, 8
add x6, x4, #(\i*64*2)
.if \i > 0
mov w8, #(16 - \i)
cmp w3, w12
b.lt 1f
ldrh w12, [x13], #2
.endif
add x7, x2, #(\i*2)
mov x8, #16*2
mov x12, #-2 // shift
bl inv_txfm_dct_clear_8x64_neon
add x6, x4, #(\i*64*2)
bl inv_txfm_horz_dct_64x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #2
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
adr x5, inv_dct_8x16_neon
.irp i, 0, 8, 16, 24, 32, 40, 48, 56
add x6, x0, #(\i)
add x7, x4, #(\i*2)
mov x8, #64*2
bl inv_txfm_add_vert_8x16_neon
.endr
add sp, x4, #64*16*2
br x15
endfunc
function inv_txfm_add_dct_dct_16x64_neon, export=1
idct_dc 16, 64, 2
mov x15, x30
sub_sp 16*32*2+64*8*2
add x5, sp, #64*8*2
movrel x13, eob_16x32
ldrh w12, [x13], #2
adr x4, inv_dct_8x16_neon
.irp i, 0, 8, 16, 24
add x6, x5, #(\i*16*2)
.if \i > 0
mov w8, #(32 - \i)
cmp w3, w12
b.lt 1f
ldrh w12, [x13], #2
.endif
add x7, x2, #(\i*2)
mov x8, #32*2
bl inv_txfm_horz_16x8_neon
.endr
b 3f
1:
movi v4.8h, #0
movi v5.8h, #0
movi v6.8h, #0
movi v7.8h, #0
2:
subs w8, w8, #8
.rept 4
st1 {v4.8h, v5.8h, v6.8h, v7.8h}, [x6], #64
.endr
b.gt 2b
3:
.irp i, 0, 8
add x7, x5, #(\i*2)
mov x8, #16*2
bl inv_txfm_dct_8x64_neon
add x6, x0, #(\i)
bl inv_txfm_add_vert_dct_8x64_neon
.endr
add sp, x5, #16*32*2
br x15
endfunc