| /* |
| * Copyright (c) 2016 Google Inc. |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/aarch64/asm.S" |
| |
| // All public functions in this file have the following signature: |
| // typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride, |
| // const uint8_t *ref, ptrdiff_t ref_stride, |
| // int h, int mx, int my); |
| |
| function ff_vp9_avg64_neon, export=1 |
| mov x5, x0 |
| 1: |
| ld1 {v4.16b, v5.16b, v6.16b, v7.16b}, [x2], x3 |
| ld1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1 |
| ld1 {v20.16b, v21.16b, v22.16b, v23.16b}, [x2], x3 |
| urhadd v0.16b, v0.16b, v4.16b |
| urhadd v1.16b, v1.16b, v5.16b |
| ld1 {v16.16b, v17.16b, v18.16b, v19.16b}, [x0], x1 |
| urhadd v2.16b, v2.16b, v6.16b |
| urhadd v3.16b, v3.16b, v7.16b |
| subs w4, w4, #2 |
| urhadd v16.16b, v16.16b, v20.16b |
| urhadd v17.16b, v17.16b, v21.16b |
| st1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x5], x1 |
| urhadd v18.16b, v18.16b, v22.16b |
| urhadd v19.16b, v19.16b, v23.16b |
| st1 {v16.16b, v17.16b, v18.16b, v19.16b}, [x5], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_avg32_neon, export=1 |
| 1: |
| ld1 {v2.16b, v3.16b}, [x2], x3 |
| ld1 {v0.16b, v1.16b}, [x0] |
| urhadd v0.16b, v0.16b, v2.16b |
| urhadd v1.16b, v1.16b, v3.16b |
| subs w4, w4, #1 |
| st1 {v0.16b, v1.16b}, [x0], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_copy16_neon, export=1 |
| add x5, x0, x1 |
| lsl x1, x1, #1 |
| add x6, x2, x3 |
| lsl x3, x3, #1 |
| 1: |
| ld1 {v0.16b}, [x2], x3 |
| ld1 {v1.16b}, [x6], x3 |
| ld1 {v2.16b}, [x2], x3 |
| ld1 {v3.16b}, [x6], x3 |
| subs w4, w4, #4 |
| st1 {v0.16b}, [x0], x1 |
| st1 {v1.16b}, [x5], x1 |
| st1 {v2.16b}, [x0], x1 |
| st1 {v3.16b}, [x5], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_avg16_neon, export=1 |
| mov x5, x0 |
| 1: |
| ld1 {v2.16b}, [x2], x3 |
| ld1 {v0.16b}, [x0], x1 |
| ld1 {v3.16b}, [x2], x3 |
| urhadd v0.16b, v0.16b, v2.16b |
| ld1 {v1.16b}, [x0], x1 |
| urhadd v1.16b, v1.16b, v3.16b |
| subs w4, w4, #2 |
| st1 {v0.16b}, [x5], x1 |
| st1 {v1.16b}, [x5], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_copy8_neon, export=1 |
| 1: |
| ld1 {v0.8b}, [x2], x3 |
| ld1 {v1.8b}, [x2], x3 |
| subs w4, w4, #2 |
| st1 {v0.8b}, [x0], x1 |
| st1 {v1.8b}, [x0], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_avg8_neon, export=1 |
| mov x5, x0 |
| 1: |
| ld1 {v2.8b}, [x2], x3 |
| ld1 {v0.8b}, [x0], x1 |
| ld1 {v3.8b}, [x2], x3 |
| urhadd v0.8b, v0.8b, v2.8b |
| ld1 {v1.8b}, [x0], x1 |
| urhadd v1.8b, v1.8b, v3.8b |
| subs w4, w4, #2 |
| st1 {v0.8b}, [x5], x1 |
| st1 {v1.8b}, [x5], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_copy4_neon, export=1 |
| 1: |
| ld1 {v0.s}[0], [x2], x3 |
| ld1 {v1.s}[0], [x2], x3 |
| st1 {v0.s}[0], [x0], x1 |
| ld1 {v2.s}[0], [x2], x3 |
| st1 {v1.s}[0], [x0], x1 |
| ld1 {v3.s}[0], [x2], x3 |
| subs w4, w4, #4 |
| st1 {v2.s}[0], [x0], x1 |
| st1 {v3.s}[0], [x0], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| function ff_vp9_avg4_neon, export=1 |
| mov x5, x0 |
| 1: |
| ld1 {v2.s}[0], [x2], x3 |
| ld1 {v0.s}[0], [x0], x1 |
| ld1 {v2.s}[1], [x2], x3 |
| ld1 {v0.s}[1], [x0], x1 |
| ld1 {v3.s}[0], [x2], x3 |
| ld1 {v1.s}[0], [x0], x1 |
| ld1 {v3.s}[1], [x2], x3 |
| ld1 {v1.s}[1], [x0], x1 |
| subs w4, w4, #4 |
| urhadd v0.8b, v0.8b, v2.8b |
| urhadd v1.8b, v1.8b, v3.8b |
| st1 {v0.s}[0], [x5], x1 |
| st1 {v0.s}[1], [x5], x1 |
| st1 {v1.s}[0], [x5], x1 |
| st1 {v1.s}[1], [x5], x1 |
| b.ne 1b |
| ret |
| endfunc |
| |
| |
| // Extract a vector from src1-src2 and src4-src5 (src1-src3 and src4-src6 |
| // for size >= 16), and multiply-accumulate into dst1 and dst3 (or |
| // dst1-dst2 and dst3-dst4 for size >= 16) |
| .macro extmla dst1, dst2, dst3, dst4, src1, src2, src3, src4, src5, src6, offset, size |
| ext v20.16b, \src1\().16b, \src2\().16b, #(2*\offset) |
| ext v22.16b, \src4\().16b, \src5\().16b, #(2*\offset) |
| .if \size >= 16 |
| mla \dst1\().8h, v20.8h, v0.h[\offset] |
| ext v21.16b, \src2\().16b, \src3\().16b, #(2*\offset) |
| mla \dst3\().8h, v22.8h, v0.h[\offset] |
| ext v23.16b, \src5\().16b, \src6\().16b, #(2*\offset) |
| mla \dst2\().8h, v21.8h, v0.h[\offset] |
| mla \dst4\().8h, v23.8h, v0.h[\offset] |
| .elseif \size == 8 |
| mla \dst1\().8h, v20.8h, v0.h[\offset] |
| mla \dst3\().8h, v22.8h, v0.h[\offset] |
| .else |
| mla \dst1\().4h, v20.4h, v0.h[\offset] |
| mla \dst3\().4h, v22.4h, v0.h[\offset] |
| .endif |
| .endm |
| // The same as above, but don't accumulate straight into the |
| // destination, but use a temp register and accumulate with saturation. |
| .macro extmulqadd dst1, dst2, dst3, dst4, src1, src2, src3, src4, src5, src6, offset, size |
| ext v20.16b, \src1\().16b, \src2\().16b, #(2*\offset) |
| ext v22.16b, \src4\().16b, \src5\().16b, #(2*\offset) |
| .if \size >= 16 |
| mul v20.8h, v20.8h, v0.h[\offset] |
| ext v21.16b, \src2\().16b, \src3\().16b, #(2*\offset) |
| mul v22.8h, v22.8h, v0.h[\offset] |
| ext v23.16b, \src5\().16b, \src6\().16b, #(2*\offset) |
| mul v21.8h, v21.8h, v0.h[\offset] |
| mul v23.8h, v23.8h, v0.h[\offset] |
| .elseif \size == 8 |
| mul v20.8h, v20.8h, v0.h[\offset] |
| mul v22.8h, v22.8h, v0.h[\offset] |
| .else |
| mul v20.4h, v20.4h, v0.h[\offset] |
| mul v22.4h, v22.4h, v0.h[\offset] |
| .endif |
| .if \size == 4 |
| sqadd \dst1\().4h, \dst1\().4h, v20.4h |
| sqadd \dst3\().4h, \dst3\().4h, v22.4h |
| .else |
| sqadd \dst1\().8h, \dst1\().8h, v20.8h |
| sqadd \dst3\().8h, \dst3\().8h, v22.8h |
| .if \size >= 16 |
| sqadd \dst2\().8h, \dst2\().8h, v21.8h |
| sqadd \dst4\().8h, \dst4\().8h, v23.8h |
| .endif |
| .endif |
| .endm |
| |
| |
| // Instantiate a horizontal filter function for the given size. |
| // This can work on 4, 8 or 16 pixels in parallel; for larger |
| // widths it will do 16 pixels at a time and loop horizontally. |
| // The actual width is passed in x5, the height in w4 and the |
| // filter coefficients in x9. idx2 is the index of the largest |
| // filter coefficient (3 or 4) and idx1 is the other one of them. |
| .macro do_8tap_h type, size, idx1, idx2 |
| function \type\()_8tap_\size\()h_\idx1\idx2 |
| sub x2, x2, #3 |
| add x6, x0, x1 |
| add x7, x2, x3 |
| add x1, x1, x1 |
| add x3, x3, x3 |
| // Only size >= 16 loops horizontally and needs |
| // reduced dst stride |
| .if \size >= 16 |
| sub x1, x1, x5 |
| .endif |
| // size >= 16 loads two qwords and increments x2, |
| // for size 4/8 it's enough with one qword and no |
| // postincrement |
| .if \size >= 16 |
| sub x3, x3, x5 |
| sub x3, x3, #8 |
| .endif |
| // Load the filter vector |
| ld1 {v0.8h}, [x9] |
| 1: |
| .if \size >= 16 |
| mov x9, x5 |
| .endif |
| // Load src |
| .if \size >= 16 |
| ld1 {v4.8b, v5.8b, v6.8b}, [x2], #24 |
| ld1 {v16.8b, v17.8b, v18.8b}, [x7], #24 |
| .else |
| ld1 {v4.8b, v5.8b}, [x2] |
| ld1 {v16.8b, v17.8b}, [x7] |
| .endif |
| uxtl v4.8h, v4.8b |
| uxtl v5.8h, v5.8b |
| uxtl v16.8h, v16.8b |
| uxtl v17.8h, v17.8b |
| .if \size >= 16 |
| uxtl v6.8h, v6.8b |
| uxtl v18.8h, v18.8b |
| .endif |
| 2: |
| |
| // Accumulate, adding idx2 last with a separate |
| // saturating add. The positive filter coefficients |
| // for all indices except idx2 must add up to less |
| // than 127 for this not to overflow. |
| mul v1.8h, v4.8h, v0.h[0] |
| mul v24.8h, v16.8h, v0.h[0] |
| .if \size >= 16 |
| mul v2.8h, v5.8h, v0.h[0] |
| mul v25.8h, v17.8h, v0.h[0] |
| .endif |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, 1, \size |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, 2, \size |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, \idx1, \size |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, 5, \size |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, 6, \size |
| extmla v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, 7, \size |
| extmulqadd v1, v2, v24, v25, v4, v5, v6, v16, v17, v18, \idx2, \size |
| |
| // Round, shift and saturate |
| sqrshrun v1.8b, v1.8h, #7 |
| sqrshrun v24.8b, v24.8h, #7 |
| .if \size >= 16 |
| sqrshrun2 v1.16b, v2.8h, #7 |
| sqrshrun2 v24.16b, v25.8h, #7 |
| .endif |
| // Average |
| .ifc \type,avg |
| .if \size >= 16 |
| ld1 {v2.16b}, [x0] |
| ld1 {v3.16b}, [x6] |
| urhadd v1.16b, v1.16b, v2.16b |
| urhadd v24.16b, v24.16b, v3.16b |
| .elseif \size == 8 |
| ld1 {v2.8b}, [x0] |
| ld1 {v3.8b}, [x6] |
| urhadd v1.8b, v1.8b, v2.8b |
| urhadd v24.8b, v24.8b, v3.8b |
| .else |
| ld1 {v2.s}[0], [x0] |
| ld1 {v3.s}[0], [x6] |
| urhadd v1.8b, v1.8b, v2.8b |
| urhadd v24.8b, v24.8b, v3.8b |
| .endif |
| .endif |
| // Store and loop horizontally (for size >= 16) |
| .if \size >= 16 |
| subs x9, x9, #16 |
| st1 {v1.16b}, [x0], #16 |
| st1 {v24.16b}, [x6], #16 |
| b.eq 3f |
| mov v4.16b, v6.16b |
| mov v16.16b, v18.16b |
| ld1 {v6.16b}, [x2], #16 |
| ld1 {v18.16b}, [x7], #16 |
| uxtl v5.8h, v6.8b |
| uxtl2 v6.8h, v6.16b |
| uxtl v17.8h, v18.8b |
| uxtl2 v18.8h, v18.16b |
| b 2b |
| .elseif \size == 8 |
| st1 {v1.8b}, [x0] |
| st1 {v24.8b}, [x6] |
| .else // \size == 4 |
| st1 {v1.s}[0], [x0] |
| st1 {v24.s}[0], [x6] |
| .endif |
| 3: |
| // Loop vertically |
| add x0, x0, x1 |
| add x6, x6, x1 |
| add x2, x2, x3 |
| add x7, x7, x3 |
| subs w4, w4, #2 |
| b.ne 1b |
| ret |
| endfunc |
| .endm |
| |
| .macro do_8tap_h_size size |
| do_8tap_h put, \size, 3, 4 |
| do_8tap_h avg, \size, 3, 4 |
| do_8tap_h put, \size, 4, 3 |
| do_8tap_h avg, \size, 4, 3 |
| .endm |
| |
| do_8tap_h_size 4 |
| do_8tap_h_size 8 |
| do_8tap_h_size 16 |
| |
| .macro do_8tap_h_func type, filter, offset, size |
| function ff_vp9_\type\()_\filter\()\size\()_h_neon, export=1 |
| movrel x6, X(ff_vp9_subpel_filters), 256*\offset |
| cmp w5, #8 |
| add x9, x6, w5, uxtw #4 |
| mov x5, #\size |
| .if \size >= 16 |
| b.ge \type\()_8tap_16h_34 |
| b \type\()_8tap_16h_43 |
| .else |
| b.ge \type\()_8tap_\size\()h_34 |
| b \type\()_8tap_\size\()h_43 |
| .endif |
| endfunc |
| .endm |
| |
| .macro do_8tap_h_filters size |
| do_8tap_h_func put, regular, 1, \size |
| do_8tap_h_func avg, regular, 1, \size |
| do_8tap_h_func put, sharp, 2, \size |
| do_8tap_h_func avg, sharp, 2, \size |
| do_8tap_h_func put, smooth, 0, \size |
| do_8tap_h_func avg, smooth, 0, \size |
| .endm |
| |
| do_8tap_h_filters 64 |
| do_8tap_h_filters 32 |
| do_8tap_h_filters 16 |
| do_8tap_h_filters 8 |
| do_8tap_h_filters 4 |
| |
| |
| // Vertical filters |
| |
| // Round, shift and saturate and store reg1-reg2 over 4 lines |
| .macro do_store4 reg1, reg2, tmp1, tmp2, type |
| sqrshrun \reg1\().8b, \reg1\().8h, #7 |
| sqrshrun \reg2\().8b, \reg2\().8h, #7 |
| .ifc \type,avg |
| ld1 {\tmp1\().s}[0], [x7], x1 |
| ld1 {\tmp2\().s}[0], [x7], x1 |
| ld1 {\tmp1\().s}[1], [x7], x1 |
| ld1 {\tmp2\().s}[1], [x7], x1 |
| urhadd \reg1\().8b, \reg1\().8b, \tmp1\().8b |
| urhadd \reg2\().8b, \reg2\().8b, \tmp2\().8b |
| .endif |
| st1 {\reg1\().s}[0], [x0], x1 |
| st1 {\reg2\().s}[0], [x0], x1 |
| st1 {\reg1\().s}[1], [x0], x1 |
| st1 {\reg2\().s}[1], [x0], x1 |
| .endm |
| |
| // Round, shift and saturate and store reg1-4 |
| .macro do_store reg1, reg2, reg3, reg4, tmp1, tmp2, tmp3, tmp4, type |
| sqrshrun \reg1\().8b, \reg1\().8h, #7 |
| sqrshrun \reg2\().8b, \reg2\().8h, #7 |
| sqrshrun \reg3\().8b, \reg3\().8h, #7 |
| sqrshrun \reg4\().8b, \reg4\().8h, #7 |
| .ifc \type,avg |
| ld1 {\tmp1\().8b}, [x7], x1 |
| ld1 {\tmp2\().8b}, [x7], x1 |
| ld1 {\tmp3\().8b}, [x7], x1 |
| ld1 {\tmp4\().8b}, [x7], x1 |
| urhadd \reg1\().8b, \reg1\().8b, \tmp1\().8b |
| urhadd \reg2\().8b, \reg2\().8b, \tmp2\().8b |
| urhadd \reg3\().8b, \reg3\().8b, \tmp3\().8b |
| urhadd \reg4\().8b, \reg4\().8b, \tmp4\().8b |
| .endif |
| st1 {\reg1\().8b}, [x0], x1 |
| st1 {\reg2\().8b}, [x0], x1 |
| st1 {\reg3\().8b}, [x0], x1 |
| st1 {\reg4\().8b}, [x0], x1 |
| .endm |
| |
| // Evaluate the filter twice in parallel, from the inputs src1-src9 into dst1-dst2 |
| // (src1-src8 into dst1, src2-src9 into dst2), adding idx2 separately |
| // at the end with saturation. Indices 0 and 7 always have negative or zero |
| // coefficients, so they can be accumulated into tmp1-tmp2 together with the |
| // largest coefficient. |
| .macro convolve dst1, dst2, src1, src2, src3, src4, src5, src6, src7, src8, src9, idx1, idx2, tmp1, tmp2 |
| mul \dst1\().8h, \src2\().8h, v0.h[1] |
| mul \dst2\().8h, \src3\().8h, v0.h[1] |
| mul \tmp1\().8h, \src1\().8h, v0.h[0] |
| mul \tmp2\().8h, \src2\().8h, v0.h[0] |
| mla \dst1\().8h, \src3\().8h, v0.h[2] |
| mla \dst2\().8h, \src4\().8h, v0.h[2] |
| .if \idx1 == 3 |
| mla \dst1\().8h, \src4\().8h, v0.h[3] |
| mla \dst2\().8h, \src5\().8h, v0.h[3] |
| .else |
| mla \dst1\().8h, \src5\().8h, v0.h[4] |
| mla \dst2\().8h, \src6\().8h, v0.h[4] |
| .endif |
| mla \dst1\().8h, \src6\().8h, v0.h[5] |
| mla \dst2\().8h, \src7\().8h, v0.h[5] |
| mla \tmp1\().8h, \src8\().8h, v0.h[7] |
| mla \tmp2\().8h, \src9\().8h, v0.h[7] |
| mla \dst1\().8h, \src7\().8h, v0.h[6] |
| mla \dst2\().8h, \src8\().8h, v0.h[6] |
| .if \idx2 == 3 |
| mla \tmp1\().8h, \src4\().8h, v0.h[3] |
| mla \tmp2\().8h, \src5\().8h, v0.h[3] |
| .else |
| mla \tmp1\().8h, \src5\().8h, v0.h[4] |
| mla \tmp2\().8h, \src6\().8h, v0.h[4] |
| .endif |
| sqadd \dst1\().8h, \dst1\().8h, \tmp1\().8h |
| sqadd \dst2\().8h, \dst2\().8h, \tmp2\().8h |
| .endm |
| |
| // Load pixels and extend them to 16 bit |
| .macro loadl dst1, dst2, dst3, dst4 |
| ld1 {v1.8b}, [x2], x3 |
| ld1 {v2.8b}, [x2], x3 |
| ld1 {v3.8b}, [x2], x3 |
| .ifnb \dst4 |
| ld1 {v4.8b}, [x2], x3 |
| .endif |
| uxtl \dst1\().8h, v1.8b |
| uxtl \dst2\().8h, v2.8b |
| uxtl \dst3\().8h, v3.8b |
| .ifnb \dst4 |
| uxtl \dst4\().8h, v4.8b |
| .endif |
| .endm |
| |
| // Instantiate a vertical filter function for filtering 8 pixels at a time. |
| // The height is passed in x4, the width in x5 and the filter coefficients |
| // in x6. idx2 is the index of the largest filter coefficient (3 or 4) |
| // and idx1 is the other one of them. |
| .macro do_8tap_8v type, idx1, idx2 |
| function \type\()_8tap_8v_\idx1\idx2 |
| sub x2, x2, x3, lsl #1 |
| sub x2, x2, x3 |
| ld1 {v0.8h}, [x6] |
| 1: |
| .ifc \type,avg |
| mov x7, x0 |
| .endif |
| mov x6, x4 |
| |
| loadl v17, v18, v19 |
| |
| loadl v20, v21, v22, v23 |
| 2: |
| loadl v24, v25, v26, v27 |
| convolve v1, v2, v17, v18, v19, v20, v21, v22, v23, v24, v25, \idx1, \idx2, v5, v6 |
| convolve v3, v4, v19, v20, v21, v22, v23, v24, v25, v26, v27, \idx1, \idx2, v5, v6 |
| do_store v1, v2, v3, v4, v5, v6, v7, v28, \type |
| |
| subs x6, x6, #4 |
| b.eq 8f |
| |
| loadl v16, v17, v18, v19 |
| convolve v1, v2, v21, v22, v23, v24, v25, v26, v27, v16, v17, \idx1, \idx2, v5, v6 |
| convolve v3, v4, v23, v24, v25, v26, v27, v16, v17, v18, v19, \idx1, \idx2, v5, v6 |
| do_store v1, v2, v3, v4, v5, v6, v7, v28, \type |
| |
| subs x6, x6, #4 |
| b.eq 8f |
| |
| loadl v20, v21, v22, v23 |
| convolve v1, v2, v25, v26, v27, v16, v17, v18, v19, v20, v21, \idx1, \idx2, v5, v6 |
| convolve v3, v4, v27, v16, v17, v18, v19, v20, v21, v22, v23, \idx1, \idx2, v5, v6 |
| do_store v1, v2, v3, v4, v5, v6, v7, v28, \type |
| |
| subs x6, x6, #4 |
| b.ne 2b |
| |
| 8: |
| subs x5, x5, #8 |
| b.eq 9f |
| // x0 -= h * dst_stride |
| msub x0, x1, x4, x0 |
| // x2 -= h * src_stride |
| msub x2, x3, x4, x2 |
| // x2 -= 8 * src_stride |
| sub x2, x2, x3, lsl #3 |
| // x2 += 1 * src_stride |
| add x2, x2, x3 |
| add x2, x2, #8 |
| add x0, x0, #8 |
| b 1b |
| 9: |
| ret |
| endfunc |
| .endm |
| |
| do_8tap_8v put, 3, 4 |
| do_8tap_8v put, 4, 3 |
| do_8tap_8v avg, 3, 4 |
| do_8tap_8v avg, 4, 3 |
| |
| |
| // Instantiate a vertical filter function for filtering a 4 pixels wide |
| // slice. The first half of the registers contain one row, while the second |
| // half of a register contains the second-next row (also stored in the first |
| // half of the register two steps ahead). The convolution does two outputs |
| // at a time; the output of v17-v24 into one, and v18-v25 into another one. |
| // The first half of first output is the first output row, the first half |
| // of the other output is the second output row. The second halves of the |
| // registers are rows 3 and 4. |
| // This only is designed to work for 4 or 8 output lines. |
| .macro do_8tap_4v type, idx1, idx2 |
| function \type\()_8tap_4v_\idx1\idx2 |
| sub x2, x2, x3, lsl #1 |
| sub x2, x2, x3 |
| ld1 {v0.8h}, [x6] |
| .ifc \type,avg |
| mov x7, x0 |
| .endif |
| |
| ld1 {v1.s}[0], [x2], x3 |
| ld1 {v2.s}[0], [x2], x3 |
| ld1 {v3.s}[0], [x2], x3 |
| ld1 {v4.s}[0], [x2], x3 |
| ld1 {v5.s}[0], [x2], x3 |
| ld1 {v6.s}[0], [x2], x3 |
| trn1 v1.2s, v1.2s, v3.2s |
| ld1 {v7.s}[0], [x2], x3 |
| trn1 v2.2s, v2.2s, v4.2s |
| ld1 {v26.s}[0], [x2], x3 |
| uxtl v17.8h, v1.8b |
| trn1 v3.2s, v3.2s, v5.2s |
| ld1 {v27.s}[0], [x2], x3 |
| uxtl v18.8h, v2.8b |
| trn1 v4.2s, v4.2s, v6.2s |
| ld1 {v28.s}[0], [x2], x3 |
| uxtl v19.8h, v3.8b |
| trn1 v5.2s, v5.2s, v7.2s |
| ld1 {v29.s}[0], [x2], x3 |
| uxtl v20.8h, v4.8b |
| trn1 v6.2s, v6.2s, v26.2s |
| uxtl v21.8h, v5.8b |
| trn1 v7.2s, v7.2s, v27.2s |
| uxtl v22.8h, v6.8b |
| trn1 v26.2s, v26.2s, v28.2s |
| uxtl v23.8h, v7.8b |
| trn1 v27.2s, v27.2s, v29.2s |
| uxtl v24.8h, v26.8b |
| uxtl v25.8h, v27.8b |
| |
| convolve v1, v2, v17, v18, v19, v20, v21, v22, v23, v24, v25, \idx1, \idx2, v3, v4 |
| do_store4 v1, v2, v5, v6, \type |
| |
| subs x4, x4, #4 |
| b.eq 9f |
| |
| ld1 {v1.s}[0], [x2], x3 |
| ld1 {v2.s}[0], [x2], x3 |
| trn1 v28.2s, v28.2s, v1.2s |
| trn1 v29.2s, v29.2s, v2.2s |
| ld1 {v1.s}[1], [x2], x3 |
| uxtl v26.8h, v28.8b |
| ld1 {v2.s}[1], [x2], x3 |
| uxtl v27.8h, v29.8b |
| uxtl v28.8h, v1.8b |
| uxtl v29.8h, v2.8b |
| |
| convolve v1, v2, v21, v22, v23, v24, v25, v26, v27, v28, v29, \idx1, \idx2, v3, v4 |
| do_store4 v1, v2, v5, v6, \type |
| |
| 9: |
| ret |
| endfunc |
| .endm |
| |
| do_8tap_4v put, 3, 4 |
| do_8tap_4v put, 4, 3 |
| do_8tap_4v avg, 3, 4 |
| do_8tap_4v avg, 4, 3 |
| |
| |
| .macro do_8tap_v_func type, filter, offset, size |
| function ff_vp9_\type\()_\filter\()\size\()_v_neon, export=1 |
| uxtw x4, w4 |
| movrel x5, X(ff_vp9_subpel_filters), 256*\offset |
| cmp w6, #8 |
| add x6, x5, w6, uxtw #4 |
| mov x5, #\size |
| .if \size >= 8 |
| b.ge \type\()_8tap_8v_34 |
| b \type\()_8tap_8v_43 |
| .else |
| b.ge \type\()_8tap_4v_34 |
| b \type\()_8tap_4v_43 |
| .endif |
| endfunc |
| .endm |
| |
| .macro do_8tap_v_filters size |
| do_8tap_v_func put, regular, 1, \size |
| do_8tap_v_func avg, regular, 1, \size |
| do_8tap_v_func put, sharp, 2, \size |
| do_8tap_v_func avg, sharp, 2, \size |
| do_8tap_v_func put, smooth, 0, \size |
| do_8tap_v_func avg, smooth, 0, \size |
| .endm |
| |
| do_8tap_v_filters 64 |
| do_8tap_v_filters 32 |
| do_8tap_v_filters 16 |
| do_8tap_v_filters 8 |
| do_8tap_v_filters 4 |
