ref: c1a28d0e008cfa494c45bce973270d71c256fe5d
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 .short 1321, 3803, 2482, 3344, 3344*8 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 add v2\sz, \r0\sz, \r2\sz sub v3\sz, \r0\sz, \r2\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 sqrdmulh v2\sz, v2\sz, v0.h[1] sqrdmulh v3\sz, v3\sz, v0.h[1] rshrn_sz v6, v6, v7, #12, \sz rshrn_sz v4, v4, v5, #12, \sz sqadd \r0\sz, v2\sz, v6\sz sqsub \r3\sz, v2\sz, v6\sz sqadd \r1\sz, v3\sz, v4\sz sqsub \r2\sz, v3\sz, v4\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] sub v3.4h, 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] add v3.4h, v3.4h, 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 sqrdmulh \o2\().4h, v3.4h, v0.h[4] 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 \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] sub v3.8h, 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] add v3.8h, v3.8h, 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] sqrdmulh v18.8h, v3.8h, v0.h[4] 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 \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 sub \r5\sz, \r3\sz, \r1\sz // -> t5 add \r7\sz, \r3\sz, \r1\sz // -> t6 sqrdmulh v4\sz, \r5\sz, v0.h[1] // t5 sqrdmulh v5\sz, \r7\sz, v0.h[1] // 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 add v6\sz, v2\sz, v4\sz sub v7\sz, v2\sz, v4\sz add v4\sz, v3\sz, v5\sz sub v5\sz, v3\sz, v5\sz sqrdmulh \o3\sz, v6\sz, v1.h[1] // out3 sqrdmulh \o4\sz, v7\sz, v1.h[1] // out4 sqrdmulh \o2\sz, v4\sz, v1.h[1] // out2 sqrdmulh \o5\sz, v5\sz, v1.h[1] // out5 neg \o3\()\sz, \o3\()\sz // out3 neg \o5\()\sz, \o5\()\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 sub v23\sz, v3\sz, v2\sz // -> t11 add v29\sz, v3\sz, v2\sz // -> t12 sub v6\sz, v25\sz, v21\sz // -> t10a add v7\sz, v25\sz, v21\sz // -> t13a sqrdmulh v2\sz, v23\sz, v0.h[1] // t11 sqrdmulh v3\sz, v29\sz, v0.h[1] // t12 sqrdmulh v4\sz, v6\sz, v0.h[1] // t10a sqrdmulh v5\sz, v7\sz, v0.h[1] // 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, v5\sz // out2 sqsub v29\sz, v20\sz, v5\sz // out13 sqadd v5\sz, v28\sz, v19\sz // out6 sqsub v25\sz, v28\sz, v19\sz // out9 sqadd v19\sz, v22\sz, v3\sz // out3 sqsub v28\sz, v22\sz, v3\sz // out12 sqadd v20\sz, v24\sz, v2\sz // out4 sqsub v27\sz, v24\sz, v2\sz // out11 sqadd v21\sz, v26\sz, v4\sz // out5 sqsub v26\sz, v26\sz, v4\sz // out10 mov v24\szb, v7\szb mov v22\szb, v5\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 sqsub v24\sz, v2\sz, v21\sz // -> out8 sqadd v2\sz, v2\sz, v21\sz // -> out7 sqadd v21\sz, v26\sz, v3\sz // -> out5 sqsub v26\sz, v26\sz, v3\sz // -> out10 sqadd v3\sz, v27\sz, v20\sz // -> out6 sqsub v25\sz, v27\sz, v20\sz // -> out9 sqadd v20\sz, v22\sz, v23\sz // -> out4 sqsub v27\sz, v22\sz, v23\sz // -> out11 sqrdmulh v2\sz, v2\sz, v0.h[1] // out7 sqrdmulh v4\sz, v21\sz, v0.h[1] // out5 sqrdmulh v5\sz, v25\sz, v0.h[1] // out9 sqrdmulh v6\sz, v27\sz, v0.h[1] // out11 sqrdmulh \o6\sz, v3\sz, v0.h[1] // out6 sqrdmulh \o8\sz, v24\sz, v0.h[1] // out8 sqrdmulh \o10\sz, v26\sz, v0.h[1] // out10 sqrdmulh \o4\sz, v20\sz, v0.h[1] // out4 neg \o7\sz, v2\sz // out7 neg \o5\sz, v4\sz // out5 neg \o9\sz, v5\sz // out9 neg \o11\sz, v6\sz // out11 .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 sub v20.8h, v24.8h, v26.8h // -> t20 add v4.8h, v24.8h, v26.8h // -> t27 sub v5.8h, v25.8h, v27.8h // -> t21a add v26.8h, v25.8h, v27.8h // -> t26a sqrdmulh v20.8h, v20.8h, v0.h[1] // t20 = out20 sqrdmulh v27.8h, v4.8h, v0.h[1] // t27 = out27 sub v22.8h, v21.8h, v23.8h // -> t22 add v25.8h, v21.8h, v23.8h // -> t25 sqrdmulh v21.8h, v5.8h, v0.h[1] // t21a = out21 sqrdmulh v26.8h, v26.8h, v0.h[1] // t26a = out26 sub v23.8h, v3.8h, v2.8h // -> t23a add v24.8h, v3.8h, v2.8h // -> t24a sqrdmulh v22.8h, v22.8h, v0.h[1] // t22 = out22 sqrdmulh v25.8h, v25.8h, v0.h[1] // t25 = out25 sqrdmulh v23.8h, v23.8h, v0.h[1] // t23a = out23 sqrdmulh v24.8h, v24.8h, v0.h[1] // t24a = out24 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