diff options
| author | Janne Grunau <janne-libav@jannau.net> | 2011-12-05 21:22:57 +0000 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-12-06 13:48:25 +0000 |
| commit | 6c889888662168811389e209bfbc662d70c27627 (patch) | |
| tree | 03cfeed3360fa8dfe86543fb184cb956aa3f740d /libavcodec/arm/rv40dsp_neon.S | |
| parent | f5c05b9aa5aeb6079b76f9da452f8ee4050e8955 (diff) | |
rv40: NEON optimised weighted prediction
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/arm/rv40dsp_neon.S')
| -rw-r--r-- | libavcodec/arm/rv40dsp_neon.S | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/libavcodec/arm/rv40dsp_neon.S b/libavcodec/arm/rv40dsp_neon.S new file mode 100644 index 0000000000..cafd98add0 --- /dev/null +++ b/libavcodec/arm/rv40dsp_neon.S @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2011 Janne Grunau <janne-libav@jannau.net> + * + * 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 "asm.S" + +.macro rv40_weight + vmovl.u8 q8, d2 + vmovl.u8 q9, d3 + vmovl.u8 q10, d4 + vmovl.u8 q11, d5 + vmull.u16 q2, d16, d0[2] + vmull.u16 q3, d17, d0[2] + vmull.u16 q8, d18, d0[2] + vmull.u16 q9, d19, d0[2] + vmull.u16 q12, d20, d0[0] + vmull.u16 q13, d21, d0[0] + vmull.u16 q14, d22, d0[0] + vmull.u16 q15, d23, d0[0] + vshrn.i32 d4, q2, #9 + vshrn.i32 d5, q3, #9 + vshrn.i32 d6, q8, #9 + vshrn.i32 d7, q9, #9 + vshrn.i32 d16, q12, #9 + vshrn.i32 d17, q13, #9 + vshrn.i32 d18, q14, #9 + vshrn.i32 d19, q15, #9 + vadd.u16 q2, q2, q8 + vadd.u16 q3, q3, q9 + vrshrn.i16 d2, q2, #5 + vrshrn.i16 d3, q3, #5 +.endm + +/* void ff_rv40_weight_func_16_neon(uint8_t *dst, uint8_t *src1, uint8_t *src2, + int w1, int w2, int stride) */ +function ff_rv40_weight_func_16_neon, export=1 + ldr r12, [sp] + vmov d0, r3, r12 + ldr r12, [sp, #4] + mov r3, #16 +1: + vld1.8 {q1}, [r1,:128], r12 + vld1.8 {q2}, [r2,:128], r12 + rv40_weight + vst1.8 {q1}, [r0,:128], r12 + subs r3, r3, #1 + bne 1b + bx lr +endfunc + +/* void ff_rv40_weight_func_8_neon(uint8_t *dst, uint8_t *src1, uint8_t *src2, + int w1, int w2, int stride) */ +function ff_rv40_weight_func_8_neon, export=1 + ldr r12, [sp] + vmov d0, r3, r12 + ldr r12, [sp, #4] + mov r3, #8 +1: + vld1.8 {d2}, [r1,:64], r12 + vld1.8 {d3}, [r1,:64], r12 + vld1.8 {d4}, [r2,:64], r12 + vld1.8 {d5}, [r2,:64], r12 + rv40_weight + vst1.8 {d2}, [r0,:64], r12 + vst1.8 {d3}, [r0,:64], r12 + subs r3, r3, #2 + bne 1b + bx lr +endfunc |