| /* |
| * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
| * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net> |
| * |
| * 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" |
| #include "neon.S" |
| |
| function ff_h264_idct_add_neon, export=1 |
| .L_ff_h264_idct_add_neon: |
| ld1 {v0.4H, v1.4H, v2.4H, v3.4H}, [x1] |
| sxtw x2, w2 |
| movi v30.8H, #0 |
| |
| add v4.4H, v0.4H, v2.4H |
| sshr v16.4H, v1.4H, #1 |
| st1 {v30.8H}, [x1], #16 |
| sshr v17.4H, v3.4H, #1 |
| st1 {v30.8H}, [x1], #16 |
| sub v5.4H, v0.4H, v2.4H |
| sub v6.4H, v16.4H, v3.4H |
| add v7.4H, v1.4H, v17.4H |
| add v0.4H, v4.4H, v7.4H |
| add v1.4H, v5.4H, v6.4H |
| sub v2.4H, v5.4H, v6.4H |
| sub v3.4H, v4.4H, v7.4H |
| |
| transpose_4x4H v0, v1, v2, v3, v4, v5, v6, v7 |
| |
| add v4.4H, v0.4H, v2.4H |
| ld1 {v18.S}[0], [x0], x2 |
| sshr v16.4H, v3.4H, #1 |
| sshr v17.4H, v1.4H, #1 |
| ld1 {v18.S}[1], [x0], x2 |
| sub v5.4H, v0.4H, v2.4H |
| ld1 {v19.S}[1], [x0], x2 |
| add v6.4H, v16.4H, v1.4H |
| ins v4.D[1], v5.D[0] |
| sub v7.4H, v17.4H, v3.4H |
| ld1 {v19.S}[0], [x0], x2 |
| ins v6.D[1], v7.D[0] |
| sub x0, x0, x2, lsl #2 |
| add v0.8H, v4.8H, v6.8H |
| sub v1.8H, v4.8H, v6.8H |
| |
| srshr v0.8H, v0.8H, #6 |
| srshr v1.8H, v1.8H, #6 |
| |
| uaddw v0.8H, v0.8H, v18.8B |
| uaddw v1.8H, v1.8H, v19.8B |
| |
| sqxtun v0.8B, v0.8H |
| sqxtun v1.8B, v1.8H |
| |
| st1 {v0.S}[0], [x0], x2 |
| st1 {v0.S}[1], [x0], x2 |
| st1 {v1.S}[1], [x0], x2 |
| st1 {v1.S}[0], [x0], x2 |
| |
| sub x1, x1, #32 |
| ret |
| endfunc |
| |
| function ff_h264_idct_dc_add_neon, export=1 |
| .L_ff_h264_idct_dc_add_neon: |
| sxtw x2, w2 |
| mov w3, #0 |
| ld1r {v2.8H}, [x1] |
| strh w3, [x1] |
| srshr v2.8H, v2.8H, #6 |
| ld1 {v0.S}[0], [x0], x2 |
| ld1 {v0.S}[1], [x0], x2 |
| uaddw v3.8H, v2.8H, v0.8B |
| ld1 {v1.S}[0], [x0], x2 |
| ld1 {v1.S}[1], [x0], x2 |
| uaddw v4.8H, v2.8H, v1.8B |
| sqxtun v0.8B, v3.8H |
| sqxtun v1.8B, v4.8H |
| sub x0, x0, x2, lsl #2 |
| st1 {v0.S}[0], [x0], x2 |
| st1 {v0.S}[1], [x0], x2 |
| st1 {v1.S}[0], [x0], x2 |
| st1 {v1.S}[1], [x0], x2 |
| ret |
| endfunc |
| |
| function ff_h264_idct_add16_neon, export=1 |
| mov x12, x30 |
| mov x6, x0 // dest |
| mov x5, x1 // block_offset |
| mov x1, x2 // block |
| mov w9, w3 // stride |
| movrel x7, scan8 |
| mov x10, #16 |
| movrel x13, .L_ff_h264_idct_dc_add_neon |
| movrel x14, .L_ff_h264_idct_add_neon |
| 1: mov w2, w9 |
| ldrb w3, [x7], #1 |
| ldrsw x0, [x5], #4 |
| ldrb w3, [x4, w3, uxtw] |
| subs w3, w3, #1 |
| b.lt 2f |
| ldrsh w3, [x1] |
| add x0, x0, x6 |
| ccmp w3, #0, #4, eq |
| csel x15, x13, x14, ne |
| blr x15 |
| 2: subs x10, x10, #1 |
| add x1, x1, #32 |
| b.ne 1b |
| ret x12 |
| endfunc |
| |
| function ff_h264_idct_add16intra_neon, export=1 |
| mov x12, x30 |
| mov x6, x0 // dest |
| mov x5, x1 // block_offset |
| mov x1, x2 // block |
| mov w9, w3 // stride |
| movrel x7, scan8 |
| mov x10, #16 |
| movrel x13, .L_ff_h264_idct_dc_add_neon |
| movrel x14, .L_ff_h264_idct_add_neon |
| 1: mov w2, w9 |
| ldrb w3, [x7], #1 |
| ldrsw x0, [x5], #4 |
| ldrb w3, [x4, w3, uxtw] |
| add x0, x0, x6 |
| cmp w3, #0 |
| ldrsh w3, [x1] |
| csel x15, x13, x14, eq |
| ccmp w3, #0, #0, eq |
| b.eq 2f |
| blr x15 |
| 2: subs x10, x10, #1 |
| add x1, x1, #32 |
| b.ne 1b |
| ret x12 |
| endfunc |
| |
| function ff_h264_idct_add8_neon, export=1 |
| sub sp, sp, #0x40 |
| stp x19, x20, [sp] |
| mov x12, x30 |
| ldp x6, x15, [x0] // dest[0], dest[1] |
| add x5, x1, #16*4 // block_offset |
| add x9, x2, #16*32 // block |
| mov w19, w3 // stride |
| movrel x13, .L_ff_h264_idct_dc_add_neon |
| movrel x14, .L_ff_h264_idct_add_neon |
| movrel x7, scan8, 16 |
| mov x10, #0 |
| mov x11, #16 |
| 1: mov w2, w19 |
| ldrb w3, [x7, x10] // scan8[i] |
| ldrsw x0, [x5, x10, lsl #2] // block_offset[i] |
| ldrb w3, [x4, w3, uxtw] // nnzc[ scan8[i] ] |
| add x0, x0, x6 // block_offset[i] + dst[j-1] |
| add x1, x9, x10, lsl #5 // block + i * 16 |
| cmp w3, #0 |
| ldrsh w3, [x1] // block[i*16] |
| csel x20, x13, x14, eq |
| ccmp w3, #0, #0, eq |
| b.eq 2f |
| blr x20 |
| 2: add x10, x10, #1 |
| cmp x10, #4 |
| csel x10, x11, x10, eq // mov x10, #16 |
| csel x6, x15, x6, eq |
| cmp x10, #20 |
| b.lt 1b |
| ldp x19, x20, [sp] |
| add sp, sp, #0x40 |
| ret x12 |
| endfunc |
| |
| .macro idct8x8_cols pass |
| .if \pass == 0 |
| va .req v18 |
| vb .req v30 |
| sshr v18.8H, v26.8H, #1 |
| add v16.8H, v24.8H, v28.8H |
| ld1 {v30.8H, v31.8H}, [x1] |
| st1 {v19.8H}, [x1], #16 |
| st1 {v19.8H}, [x1], #16 |
| sub v17.8H, v24.8H, v28.8H |
| sshr v19.8H, v30.8H, #1 |
| sub v18.8H, v18.8H, v30.8H |
| add v19.8H, v19.8H, v26.8H |
| .else |
| va .req v30 |
| vb .req v18 |
| sshr v30.8H, v26.8H, #1 |
| sshr v19.8H, v18.8H, #1 |
| add v16.8H, v24.8H, v28.8H |
| sub v17.8H, v24.8H, v28.8H |
| sub v30.8H, v30.8H, v18.8H |
| add v19.8H, v19.8H, v26.8H |
| .endif |
| add v26.8H, v17.8H, va.8H |
| sub v28.8H, v17.8H, va.8H |
| add v24.8H, v16.8H, v19.8H |
| sub vb.8H, v16.8H, v19.8H |
| sub v16.8H, v29.8H, v27.8H |
| add v17.8H, v31.8H, v25.8H |
| sub va.8H, v31.8H, v25.8H |
| add v19.8H, v29.8H, v27.8H |
| sub v16.8H, v16.8H, v31.8H |
| sub v17.8H, v17.8H, v27.8H |
| add va.8H, va.8H, v29.8H |
| add v19.8H, v19.8H, v25.8H |
| sshr v25.8H, v25.8H, #1 |
| sshr v27.8H, v27.8H, #1 |
| sshr v29.8H, v29.8H, #1 |
| sshr v31.8H, v31.8H, #1 |
| sub v16.8H, v16.8H, v31.8H |
| sub v17.8H, v17.8H, v27.8H |
| add va.8H, va.8H, v29.8H |
| add v19.8H, v19.8H, v25.8H |
| sshr v25.8H, v16.8H, #2 |
| sshr v27.8H, v17.8H, #2 |
| sshr v29.8H, va.8H, #2 |
| sshr v31.8H, v19.8H, #2 |
| sub v19.8H, v19.8H, v25.8H |
| sub va.8H, v27.8H, va.8H |
| add v17.8H, v17.8H, v29.8H |
| add v16.8H, v16.8H, v31.8H |
| .if \pass == 0 |
| sub v31.8H, v24.8H, v19.8H |
| add v24.8H, v24.8H, v19.8H |
| add v25.8H, v26.8H, v18.8H |
| sub v18.8H, v26.8H, v18.8H |
| add v26.8H, v28.8H, v17.8H |
| add v27.8H, v30.8H, v16.8H |
| sub v29.8H, v28.8H, v17.8H |
| sub v28.8H, v30.8H, v16.8H |
| .else |
| sub v31.8H, v24.8H, v19.8H |
| add v24.8H, v24.8H, v19.8H |
| add v25.8H, v26.8H, v30.8H |
| sub v30.8H, v26.8H, v30.8H |
| add v26.8H, v28.8H, v17.8H |
| sub v29.8H, v28.8H, v17.8H |
| add v27.8H, v18.8H, v16.8H |
| sub v28.8H, v18.8H, v16.8H |
| .endif |
| .unreq va |
| .unreq vb |
| .endm |
| |
| function ff_h264_idct8_add_neon, export=1 |
| .L_ff_h264_idct8_add_neon: |
| movi v19.8H, #0 |
| sxtw x2, w2 |
| ld1 {v24.8H, v25.8H}, [x1] |
| st1 {v19.8H}, [x1], #16 |
| st1 {v19.8H}, [x1], #16 |
| ld1 {v26.8H, v27.8H}, [x1] |
| st1 {v19.8H}, [x1], #16 |
| st1 {v19.8H}, [x1], #16 |
| ld1 {v28.8H, v29.8H}, [x1] |
| st1 {v19.8H}, [x1], #16 |
| st1 {v19.8H}, [x1], #16 |
| |
| idct8x8_cols 0 |
| transpose_8x8H v24, v25, v26, v27, v28, v29, v18, v31, v6, v7 |
| idct8x8_cols 1 |
| |
| mov x3, x0 |
| srshr v24.8H, v24.8H, #6 |
| ld1 {v0.8B}, [x0], x2 |
| srshr v25.8H, v25.8H, #6 |
| ld1 {v1.8B}, [x0], x2 |
| srshr v26.8H, v26.8H, #6 |
| ld1 {v2.8B}, [x0], x2 |
| srshr v27.8H, v27.8H, #6 |
| ld1 {v3.8B}, [x0], x2 |
| srshr v28.8H, v28.8H, #6 |
| ld1 {v4.8B}, [x0], x2 |
| srshr v29.8H, v29.8H, #6 |
| ld1 {v5.8B}, [x0], x2 |
| srshr v30.8H, v30.8H, #6 |
| ld1 {v6.8B}, [x0], x2 |
| srshr v31.8H, v31.8H, #6 |
| ld1 {v7.8B}, [x0], x2 |
| uaddw v24.8H, v24.8H, v0.8B |
| uaddw v25.8H, v25.8H, v1.8B |
| uaddw v26.8H, v26.8H, v2.8B |
| sqxtun v0.8B, v24.8H |
| uaddw v27.8H, v27.8H, v3.8B |
| sqxtun v1.8B, v25.8H |
| uaddw v28.8H, v28.8H, v4.8B |
| sqxtun v2.8B, v26.8H |
| st1 {v0.8B}, [x3], x2 |
| uaddw v29.8H, v29.8H, v5.8B |
| sqxtun v3.8B, v27.8H |
| st1 {v1.8B}, [x3], x2 |
| uaddw v30.8H, v30.8H, v6.8B |
| sqxtun v4.8B, v28.8H |
| st1 {v2.8B}, [x3], x2 |
| uaddw v31.8H, v31.8H, v7.8B |
| sqxtun v5.8B, v29.8H |
| st1 {v3.8B}, [x3], x2 |
| sqxtun v6.8B, v30.8H |
| sqxtun v7.8B, v31.8H |
| st1 {v4.8B}, [x3], x2 |
| st1 {v5.8B}, [x3], x2 |
| st1 {v6.8B}, [x3], x2 |
| st1 {v7.8B}, [x3], x2 |
| |
| sub x1, x1, #128 |
| ret |
| endfunc |
| |
| function ff_h264_idct8_dc_add_neon, export=1 |
| .L_ff_h264_idct8_dc_add_neon: |
| mov w3, #0 |
| sxtw x2, w2 |
| ld1r {v31.8H}, [x1] |
| strh w3, [x1] |
| ld1 {v0.8B}, [x0], x2 |
| srshr v31.8H, v31.8H, #6 |
| ld1 {v1.8B}, [x0], x2 |
| ld1 {v2.8B}, [x0], x2 |
| uaddw v24.8H, v31.8H, v0.8B |
| ld1 {v3.8B}, [x0], x2 |
| uaddw v25.8H, v31.8H, v1.8B |
| ld1 {v4.8B}, [x0], x2 |
| uaddw v26.8H, v31.8H, v2.8B |
| ld1 {v5.8B}, [x0], x2 |
| uaddw v27.8H, v31.8H, v3.8B |
| ld1 {v6.8B}, [x0], x2 |
| uaddw v28.8H, v31.8H, v4.8B |
| ld1 {v7.8B}, [x0], x2 |
| uaddw v29.8H, v31.8H, v5.8B |
| uaddw v30.8H, v31.8H, v6.8B |
| uaddw v31.8H, v31.8H, v7.8B |
| sqxtun v0.8B, v24.8H |
| sqxtun v1.8B, v25.8H |
| sqxtun v2.8B, v26.8H |
| sqxtun v3.8B, v27.8H |
| sub x0, x0, x2, lsl #3 |
| st1 {v0.8B}, [x0], x2 |
| sqxtun v4.8B, v28.8H |
| st1 {v1.8B}, [x0], x2 |
| sqxtun v5.8B, v29.8H |
| st1 {v2.8B}, [x0], x2 |
| sqxtun v6.8B, v30.8H |
| st1 {v3.8B}, [x0], x2 |
| sqxtun v7.8B, v31.8H |
| st1 {v4.8B}, [x0], x2 |
| st1 {v5.8B}, [x0], x2 |
| st1 {v6.8B}, [x0], x2 |
| st1 {v7.8B}, [x0], x2 |
| ret |
| endfunc |
| |
| function ff_h264_idct8_add4_neon, export=1 |
| mov x12, x30 |
| mov x6, x0 |
| mov x5, x1 |
| mov x1, x2 |
| mov w2, w3 |
| movrel x7, scan8 |
| mov w10, #16 |
| movrel x13, .L_ff_h264_idct8_dc_add_neon |
| movrel x14, .L_ff_h264_idct8_add_neon |
| 1: ldrb w9, [x7], #4 |
| ldrsw x0, [x5], #16 |
| ldrb w9, [x4, w9, UXTW] |
| subs w9, w9, #1 |
| b.lt 2f |
| ldrsh w11, [x1] |
| add x0, x6, x0 |
| ccmp w11, #0, #4, eq |
| csel x15, x13, x14, ne |
| blr x15 |
| 2: subs w10, w10, #4 |
| add x1, x1, #128 |
| b.ne 1b |
| ret x12 |
| endfunc |
| |
| const scan8 |
| .byte 4+ 1*8, 5+ 1*8, 4+ 2*8, 5+ 2*8 |
| .byte 6+ 1*8, 7+ 1*8, 6+ 2*8, 7+ 2*8 |
| .byte 4+ 3*8, 5+ 3*8, 4+ 4*8, 5+ 4*8 |
| .byte 6+ 3*8, 7+ 3*8, 6+ 4*8, 7+ 4*8 |
| .byte 4+ 6*8, 5+ 6*8, 4+ 7*8, 5+ 7*8 |
| .byte 6+ 6*8, 7+ 6*8, 6+ 7*8, 7+ 7*8 |
| .byte 4+ 8*8, 5+ 8*8, 4+ 9*8, 5+ 9*8 |
| .byte 6+ 8*8, 7+ 8*8, 6+ 9*8, 7+ 9*8 |
| .byte 4+11*8, 5+11*8, 4+12*8, 5+12*8 |
| .byte 6+11*8, 7+11*8, 6+12*8, 7+12*8 |
| .byte 4+13*8, 5+13*8, 4+14*8, 5+14*8 |
| .byte 6+13*8, 7+13*8, 6+14*8, 7+14*8 |
| endconst |
