repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #include "libavutil/arm/asm.S" | |
| 22 | ||
| 23 | function ff_synth_filter_float_neon, export=1 | |
| 24 | push {r3-r11,lr} | |
| 25 | ||
| 26 | ldr r4, [r2] @ synth_buf_offset | |
| 27 | add r1, r1, r4, lsl #2 @ synth_buf | |
| 28 | sub r12, r4, #32 | |
| 29 | bfc r12, #9, #23 | |
| 30 | bic r4, r4, #63 | |
| 31 | str r12, [r2] | |
| 32 | ||
| 33 | ldr r2, [sp, #12*4] @ in | |
| 34 | mov r9, r1 @ synth_buf | |
| 35 | ||
| 36 | VFP vpush {d0} | |
| 37 | bl X(ff_imdct_half_neon) | |
| 38 | VFP vpop {d0} | |
| 39 | pop {r3} | |
| 40 | ||
| 41 | ldr r5, [sp, #9*4] @ window | |
| 42 | ldr r2, [sp, #10*4] @ out | |
| 43 | NOVFP vldr s0, [sp, #12*4] @ scale | |
| 44 | add r8, r9, #12*4 | |
| 45 | ||
| 46 | mov lr, #64*4 | |
| 47 | mov r1, #4 | |
| 48 | 1: | |
| 49 | add r10, r9, #16*4 @ synth_buf | |
| 50 | add r11, r8, #16*4 | |
| 51 | add r0, r5, #16*4 @ window | |
| 52 | add r6, r5, #32*4 | |
| 53 | add r7, r5, #48*4 | |
| 54 | ||
| 55 | vld1.32 {q10}, [r3,:128] @ a | |
| 56 | add r3, r3, #16*4 | |
| 57 | vld1.32 {q1}, [r3,:128] @ b | |
| 58 | vmov.f32 q2, #0.0 @ c | |
| 59 | vmov.f32 q3, #0.0 @ d | |
| 60 | ||
| 61 | mov r12, #512 | |
| 62 | 2: | |
| 63 | vld1.32 {q9}, [r8, :128], lr | |
| 64 | vrev64.32 q9, q9 | |
| 65 | vld1.32 {q8}, [r5, :128], lr | |
| 66 | vmls.f32 d20, d16, d19 | |
| 67 | vld1.32 {q11}, [r0, :128], lr | |
| 68 | vmls.f32 d21, d17, d18 | |
| 69 | vld1.32 {q12}, [r9, :128], lr | |
| 70 | vmla.f32 d2, d22, d24 | |
| 71 | vld1.32 {q8}, [r6, :128], lr | |
| 72 | vmla.f32 d3, d23, d25 | |
| 73 | vld1.32 {q9}, [r10,:128], lr | |
| 74 | vmla.f32 d4, d16, d18 | |
| 75 | vld1.32 {q12}, [r11,:128], lr | |
| 76 | vmla.f32 d5, d17, d19 | |
| 77 | vrev64.32 q12, q12 | |
| 78 | vld1.32 {q11}, [r7, :128], lr | |
| 79 | vmla.f32 d6, d22, d25 | |
| 80 | vmla.f32 d7, d23, d24 | |
| 81 | subs r12, r12, #64 | |
| 82 | beq 3f | |
| 83 | cmp r12, r4 | |
| 84 | bne 2b | |
| 85 | sub r8, r8, #512*4 | |
| 86 | sub r9, r9, #512*4 | |
| 87 | sub r10, r10, #512*4 | |
| 88 | sub r11, r11, #512*4 | |
| 89 | b 2b | |
| 90 | 3: | |
| 91 | vmul.f32 q8, q10, d0[0] | |
| 92 | vmul.f32 q9, q1, d0[0] | |
| 93 | vst1.32 {q3}, [r3,:128] | |
| 94 | sub r3, r3, #16*4 | |
| 95 | vst1.32 {q2}, [r3,:128] | |
| 96 | vst1.32 {q8}, [r2,:128] | |
| 97 | add r2, r2, #16*4 | |
| 98 | vst1.32 {q9}, [r2,:128] | |
| 99 | ||
| 100 | subs r1, r1, #1 | |
| 101 | it eq | |
| 102 | popeq {r4-r11,pc} | |
| 103 | ||
| 104 | cmp r4, #0 | |
| 105 | itt eq | |
| 106 | subeq r8, r8, #512*4 | |
| 107 | subeq r9, r9, #512*4 | |
| 108 | sub r5, r5, #512*4 | |
| 109 | sub r2, r2, #12*4 @ out | |
| 110 | add r3, r3, #4*4 @ synth_buf2 | |
| 111 | add r5, r5, #4*4 @ window | |
| 112 | add r9, r9, #4*4 @ synth_buf | |
| 113 | sub r8, r8, #4*4 @ synth_buf | |
| 114 | b 1b | |
| 115 | endfunc |