diff options
Diffstat (limited to 'libavcodec/aarch64/fmtconvert_neon.S')
| -rw-r--r-- | libavcodec/aarch64/fmtconvert_neon.S | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libavcodec/aarch64/fmtconvert_neon.S b/libavcodec/aarch64/fmtconvert_neon.S new file mode 100644 index 0000000000..3b33c87ade --- /dev/null +++ b/libavcodec/aarch64/fmtconvert_neon.S @@ -0,0 +1,76 @@ +/* + * ARM NEON optimised Format Conversion Utils + * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> + * Copyright (c) 2015 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 "config.h" +#include "libavutil/aarch64/asm.S" + +function ff_int32_to_float_fmul_scalar_neon, export=1 + ld1 {v1.4s,v2.4s}, [x1], #32 + scvtf v1.4s, v1.4s + scvtf v2.4s, v2.4s +1: + subs w2, w2, #8 + fmul v3.4s, v1.4s, v0.s[0] + fmul v4.4s, v2.4s, v0.s[0] + b.le 2f + ld1 {v1.4s,v2.4s}, [x1], #32 + st1 {v3.4s,v4.4s}, [x0], #32 + scvtf v1.4s, v1.4s + scvtf v2.4s, v2.4s + b 1b +2: + st1 {v3.4s,v4.4s}, [x0] + ret +endfunc + +function ff_int32_to_float_fmul_array8_neon, export=1 + lsr w4, w4, #3 + subs w5, w4, #1 + b.eq 1f +2: + ld1 {v0.4s,v1.4s}, [x2], #32 + ld1 {v2.4s,v3.4s}, [x2], #32 + scvtf v0.4s, v0.4s + scvtf v1.4s, v1.4s + ld1 {v16.2s}, [x3], #8 + scvtf v2.4s, v2.4s + scvtf v3.4s, v3.4s + fmul v4.4s, v0.4s, v16.s[0] + fmul v5.4s, v1.4s, v16.s[0] + fmul v6.4s, v2.4s, v16.s[1] + fmul v7.4s, v3.4s, v16.s[1] + st1 {v4.4s,v5.4s}, [x1], #32 + st1 {v6.4s,v7.4s}, [x1], #32 + subs w5, w5, #2 + b.gt 2b + b.eq 1f + ret +1: + ld1 {v0.4s,v1.4s}, [x2] + ld1 {v16.s}[0], [x3] + scvtf v0.4s, v0.4s + scvtf v1.4s, v1.4s + fmul v4.4s, v0.4s, v16.s[0] + fmul v5.4s, v1.4s, v16.s[0] + st1 {v4.4s,v5.4s}, [x1] + ret +endfunc |