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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2013-01-19 22:21:10 -0800 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2013-01-19 22:21:10 -0800 |
| commit | fef906c77c09940a2fdad155b2adc05080e17eda (patch) | |
| tree | 04fe0b67be6917b07bfb94a6af45b669f3a66107 /libavcodec/arm/vorbisdsp_neon.S | |
| parent | aeaf268e52fc11c1f64914a319e0edddf1346d6a (diff) | |
| download | ffmpeg-fef906c77c09940a2fdad155b2adc05080e17eda.tar.gz | |
Move vorbis_inverse_coupling from dsputil to vorbisdspcontext.
Conveniently (together with Justin's earlier patches), this makes
our vorbis decoder entirely independent of dsputil.
Diffstat (limited to 'libavcodec/arm/vorbisdsp_neon.S')
| -rw-r--r-- | libavcodec/arm/vorbisdsp_neon.S | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libavcodec/arm/vorbisdsp_neon.S b/libavcodec/arm/vorbisdsp_neon.S new file mode 100644 index 0000000000..7df876c2bc --- /dev/null +++ b/libavcodec/arm/vorbisdsp_neon.S @@ -0,0 +1,83 @@ +/* + * ARM NEON optimised DSP functions + * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/arm/asm.S" + +function ff_vorbis_inverse_coupling_neon, export=1 + vmov.i32 q10, #1<<31 + subs r2, r2, #4 + mov r3, r0 + mov r12, r1 + beq 3f + + vld1.32 {d24-d25},[r1,:128]! + vld1.32 {d22-d23},[r0,:128]! + vcle.s32 q8, q12, #0 + vand q9, q11, q10 + veor q12, q12, q9 + vand q2, q12, q8 + vbic q3, q12, q8 + vadd.f32 q12, q11, q2 + vsub.f32 q11, q11, q3 +1: vld1.32 {d2-d3}, [r1,:128]! + vld1.32 {d0-d1}, [r0,:128]! + vcle.s32 q8, q1, #0 + vand q9, q0, q10 + veor q1, q1, q9 + vst1.32 {d24-d25},[r3, :128]! + vst1.32 {d22-d23},[r12,:128]! + vand q2, q1, q8 + vbic q3, q1, q8 + vadd.f32 q1, q0, q2 + vsub.f32 q0, q0, q3 + subs r2, r2, #8 + ble 2f + vld1.32 {d24-d25},[r1,:128]! + vld1.32 {d22-d23},[r0,:128]! + vcle.s32 q8, q12, #0 + vand q9, q11, q10 + veor q12, q12, q9 + vst1.32 {d2-d3}, [r3, :128]! + vst1.32 {d0-d1}, [r12,:128]! + vand q2, q12, q8 + vbic q3, q12, q8 + vadd.f32 q12, q11, q2 + vsub.f32 q11, q11, q3 + b 1b + +2: vst1.32 {d2-d3}, [r3, :128]! + vst1.32 {d0-d1}, [r12,:128]! + it lt + bxlt lr + +3: vld1.32 {d2-d3}, [r1,:128] + vld1.32 {d0-d1}, [r0,:128] + vcle.s32 q8, q1, #0 + vand q9, q0, q10 + veor q1, q1, q9 + vand q2, q1, q8 + vbic q3, q1, q8 + vadd.f32 q1, q0, q2 + vsub.f32 q0, q0, q3 + vst1.32 {d2-d3}, [r0,:128]! + vst1.32 {d0-d1}, [r1,:128]! + bx lr +endfunc |