diff options
Diffstat (limited to 'media/ffvpx/libavutil/aarch64/float_dsp_neon.S')
-rw-r--r-- | media/ffvpx/libavutil/aarch64/float_dsp_neon.S | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/aarch64/float_dsp_neon.S b/media/ffvpx/libavutil/aarch64/float_dsp_neon.S new file mode 100644 index 0000000000..35e2715b87 --- /dev/null +++ b/media/ffvpx/libavutil/aarch64/float_dsp_neon.S @@ -0,0 +1,202 @@ +/* + * ARM NEON optimised Float DSP functions + * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> + * Copyright (c) 2014 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 "config.h" +#include "asm.S" + +function ff_vector_fmul_neon, export=1 +1: subs w3, w3, #16 + ld1 {v0.4s, v1.4s}, [x1], #32 + ld1 {v2.4s, v3.4s}, [x1], #32 + ld1 {v4.4s, v5.4s}, [x2], #32 + ld1 {v6.4s, v7.4s}, [x2], #32 + fmul v16.4s, v0.4s, v4.4s + fmul v17.4s, v1.4s, v5.4s + fmul v18.4s, v2.4s, v6.4s + fmul v19.4s, v3.4s, v7.4s + st1 {v16.4s, v17.4s}, [x0], #32 + st1 {v18.4s, v19.4s}, [x0], #32 + b.ne 1b + ret +endfunc + +function ff_vector_fmac_scalar_neon, export=1 + mov x3, #-32 +1: subs w2, w2, #16 + ld1 {v16.4s, v17.4s}, [x0], #32 + ld1 {v18.4s, v19.4s}, [x0], x3 + ld1 {v4.4s, v5.4s}, [x1], #32 + ld1 {v6.4s, v7.4s}, [x1], #32 + fmla v16.4s, v4.4s, v0.s[0] + fmla v17.4s, v5.4s, v0.s[0] + fmla v18.4s, v6.4s, v0.s[0] + fmla v19.4s, v7.4s, v0.s[0] + st1 {v16.4s, v17.4s}, [x0], #32 + st1 {v18.4s, v19.4s}, [x0], #32 + b.ne 1b + ret +endfunc + +function ff_vector_fmul_scalar_neon, export=1 + mov w4, #15 + bics w3, w2, w4 + dup v16.4s, v0.s[0] + b.eq 3f + ld1 {v0.4s, v1.4s}, [x1], #32 +1: subs w3, w3, #16 + fmul v0.4s, v0.4s, v16.4s + ld1 {v2.4s, v3.4s}, [x1], #32 + fmul v1.4s, v1.4s, v16.4s + fmul v2.4s, v2.4s, v16.4s + st1 {v0.4s, v1.4s}, [x0], #32 + fmul v3.4s, v3.4s, v16.4s + b.eq 2f + ld1 {v0.4s, v1.4s}, [x1], #32 + st1 {v2.4s, v3.4s}, [x0], #32 + b 1b +2: ands w2, w2, #15 + st1 {v2.4s, v3.4s}, [x0], #32 + b.eq 4f +3: ld1 {v0.4s}, [x1], #16 + fmul v0.4s, v0.4s, v16.4s + st1 {v0.4s}, [x0], #16 + subs w2, w2, #4 + b.gt 3b +4: ret +endfunc + +function ff_vector_dmul_scalar_neon, export=1 + dup v16.2d, v0.d[0] + ld1 {v0.2d, v1.2d}, [x1], #32 +1: subs w2, w2, #8 + fmul v0.2d, v0.2d, v16.2d + ld1 {v2.2d, v3.2d}, [x1], #32 + fmul v1.2d, v1.2d, v16.2d + fmul v2.2d, v2.2d, v16.2d + st1 {v0.2d, v1.2d}, [x0], #32 + fmul v3.2d, v3.2d, v16.2d + ld1 {v0.2d, v1.2d}, [x1], #32 + st1 {v2.2d, v3.2d}, [x0], #32 + b.gt 1b + ret +endfunc + +function ff_vector_fmul_window_neon, export=1 + sxtw x4, w4 // len + sub x2, x2, #8 + sub x5, x4, #2 + add x2, x2, x5, lsl #2 // src1 + 4 * (len - 4) + add x6, x3, x5, lsl #3 // win + 8 * (len - 2) + add x5, x0, x5, lsl #3 // dst + 8 * (len - 2) + mov x7, #-16 + ld1 {v0.4s}, [x1], #16 // s0 + ld1 {v2.4s}, [x3], #16 // wi + ld1 {v1.4s}, [x2], x7 // s1 +1: ld1 {v3.4s}, [x6], x7 // wj + subs x4, x4, #4 + fmul v17.4s, v0.4s, v2.4s // s0 * wi + rev64 v4.4s, v1.4s + rev64 v5.4s, v3.4s + rev64 v17.4s, v17.4s + ext v4.16b, v4.16b, v4.16b, #8 // s1_r + ext v5.16b, v5.16b, v5.16b, #8 // wj_r + ext v17.16b, v17.16b, v17.16b, #8 // (s0 * wi)_rev + fmul v16.4s, v0.4s, v5.4s // s0 * wj_r + fmla v17.4s, v1.4s, v3.4s // (s0 * wi)_rev + s1 * wj + b.eq 2f + ld1 {v0.4s}, [x1], #16 + fmls v16.4s, v4.4s, v2.4s // s0 * wj_r - s1_r * wi + st1 {v17.4s}, [x5], x7 + ld1 {v2.4s}, [x3], #16 + ld1 {v1.4s}, [x2], x7 + st1 {v16.4s}, [x0], #16 + b 1b +2: + fmls v16.4s, v4.4s, v2.4s // s0 * wj_r - s1_r * wi + st1 {v17.4s}, [x5], x7 + st1 {v16.4s}, [x0], #16 + ret +endfunc + +function ff_vector_fmul_add_neon, export=1 + ld1 {v0.4s, v1.4s}, [x1], #32 + ld1 {v2.4s, v3.4s}, [x2], #32 + ld1 {v4.4s, v5.4s}, [x3], #32 +1: subs w4, w4, #8 + fmla v4.4s, v0.4s, v2.4s + fmla v5.4s, v1.4s, v3.4s + b.eq 2f + ld1 {v0.4s, v1.4s}, [x1], #32 + ld1 {v2.4s, v3.4s}, [x2], #32 + st1 {v4.4s, v5.4s}, [x0], #32 + ld1 {v4.4s, v5.4s}, [x3], #32 + b 1b +2: st1 {v4.4s, v5.4s}, [x0], #32 + ret +endfunc + +function ff_vector_fmul_reverse_neon, export=1 + sxtw x3, w3 + add x2, x2, x3, lsl #2 + sub x2, x2, #32 + mov x4, #-32 + ld1 {v2.4s, v3.4s}, [x2], x4 + ld1 {v0.4s, v1.4s}, [x1], #32 +1: subs x3, x3, #8 + rev64 v3.4s, v3.4s + rev64 v2.4s, v2.4s + ext v3.16b, v3.16b, v3.16b, #8 + ext v2.16b, v2.16b, v2.16b, #8 + fmul v16.4s, v0.4s, v3.4s + fmul v17.4s, v1.4s, v2.4s + b.eq 2f + ld1 {v2.4s, v3.4s}, [x2], x4 + ld1 {v0.4s, v1.4s}, [x1], #32 + st1 {v16.4s, v17.4s}, [x0], #32 + b 1b +2: st1 {v16.4s, v17.4s}, [x0], #32 + ret +endfunc + +function ff_butterflies_float_neon, export=1 +1: ld1 {v0.4s}, [x0] + ld1 {v1.4s}, [x1] + subs w2, w2, #4 + fsub v2.4s, v0.4s, v1.4s + fadd v3.4s, v0.4s, v1.4s + st1 {v2.4s}, [x1], #16 + st1 {v3.4s}, [x0], #16 + b.gt 1b + ret +endfunc + +function ff_scalarproduct_float_neon, export=1 + movi v2.4s, #0 +1: ld1 {v0.4s}, [x0], #16 + ld1 {v1.4s}, [x1], #16 + subs w2, w2, #4 + fmla v2.4s, v0.4s, v1.4s + b.gt 1b + faddp v0.4s, v2.4s, v2.4s + faddp s0, v0.2s + ret +endfunc |