diff options
| author | Tim Redfern <tim@eclectronics.org> | 2013-09-05 17:55:35 +0100 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2013-09-05 17:55:35 +0100 |
| commit | 741fb4b9e135cfb161a749db88713229038577bb (patch) | |
| tree | 08bc9925659cbcac45162bacf31dc6336d4f60b4 /ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c | |
| parent | a2e1bf3495b7bfefdaedb8fc737e969ab06df079 (diff) | |
making act segmenter
Diffstat (limited to 'ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c')
| -rw-r--r-- | ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c b/ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c deleted file mode 100644 index b29c7d4..0000000 --- a/ffmpeg1/libavcodec/ppc/fmtconvert_altivec.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * Copyright (c) 2006 Luca Barbato <lu_zero@gentoo.org> - * - * 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 "libavcodec/fmtconvert.h" - -#include "libavutil/ppc/util_altivec.h" -#include "libavutil/attributes.h" -#include "libavutil/mem.h" -#include "dsputil_altivec.h" - -static void int32_to_float_fmul_scalar_altivec(float *dst, const int *src, - float mul, int len) -{ - union { - vector float v; - float s[4]; - } mul_u; - int i; - vector float src1, src2, dst1, dst2, mul_v, zero; - - zero = (vector float)vec_splat_u32(0); - mul_u.s[0] = mul; - mul_v = vec_splat(mul_u.v, 0); - - for (i = 0; i < len; i += 8) { - src1 = vec_ctf(vec_ld(0, src+i), 0); - src2 = vec_ctf(vec_ld(16, src+i), 0); - dst1 = vec_madd(src1, mul_v, zero); - dst2 = vec_madd(src2, mul_v, zero); - vec_st(dst1, 0, dst+i); - vec_st(dst2, 16, dst+i); - } -} - - -static vector signed short float_to_int16_one_altivec(const float *src) -{ - vector float s0 = vec_ld(0, src); - vector float s1 = vec_ld(16, src); - vector signed int t0 = vec_cts(s0, 0); - vector signed int t1 = vec_cts(s1, 0); - return vec_packs(t0,t1); -} - -static void float_to_int16_altivec(int16_t *dst, const float *src, long len) -{ - int i; - vector signed short d0, d1, d; - vector unsigned char align; - if (((long)dst) & 15) { //FIXME - for (i = 0; i < len - 7; i += 8) { - d0 = vec_ld(0, dst+i); - d = float_to_int16_one_altivec(src + i); - d1 = vec_ld(15, dst+i); - d1 = vec_perm(d1, d0, vec_lvsl(0, dst + i)); - align = vec_lvsr(0, dst + i); - d0 = vec_perm(d1, d, align); - d1 = vec_perm(d, d1, align); - vec_st(d0, 0, dst + i); - vec_st(d1, 15, dst + i); - } - } else { - for (i = 0; i < len - 7; i += 8) { - d = float_to_int16_one_altivec(src + i); - vec_st(d, 0, dst + i); - } - } -} - -#define VSTE_INC(dst, v, elem, inc) do { \ - vector signed short s = vec_splat(v, elem); \ - vec_ste(s, 0, dst); \ - dst += inc; \ - } while (0) - -static void float_to_int16_stride_altivec(int16_t *dst, const float *src, - long len, int stride) -{ - int i; - vector signed short d; - - for (i = 0; i < len - 7; i += 8) { - d = float_to_int16_one_altivec(src + i); - VSTE_INC(dst, d, 0, stride); - VSTE_INC(dst, d, 1, stride); - VSTE_INC(dst, d, 2, stride); - VSTE_INC(dst, d, 3, stride); - VSTE_INC(dst, d, 4, stride); - VSTE_INC(dst, d, 5, stride); - VSTE_INC(dst, d, 6, stride); - VSTE_INC(dst, d, 7, stride); - } -} - -static void float_to_int16_interleave_altivec(int16_t *dst, const float **src, - long len, int channels) -{ - int i; - vector signed short d0, d1, d2, c0, c1, t0, t1; - vector unsigned char align; - - if (channels == 1) - float_to_int16_altivec(dst, src[0], len); - else { - if (channels == 2) { - if (((long)dst) & 15) { - for (i = 0; i < len - 7; i += 8) { - d0 = vec_ld(0, dst + i); - t0 = float_to_int16_one_altivec(src[0] + i); - d1 = vec_ld(31, dst + i); - t1 = float_to_int16_one_altivec(src[1] + i); - c0 = vec_mergeh(t0, t1); - c1 = vec_mergel(t0, t1); - d2 = vec_perm(d1, d0, vec_lvsl(0, dst + i)); - align = vec_lvsr(0, dst + i); - d0 = vec_perm(d2, c0, align); - d1 = vec_perm(c0, c1, align); - vec_st(d0, 0, dst + i); - d0 = vec_perm(c1, d2, align); - vec_st(d1, 15, dst + i); - vec_st(d0, 31, dst + i); - dst += 8; - } - } else { - for (i = 0; i < len - 7; i += 8) { - t0 = float_to_int16_one_altivec(src[0] + i); - t1 = float_to_int16_one_altivec(src[1] + i); - d0 = vec_mergeh(t0, t1); - d1 = vec_mergel(t0, t1); - vec_st(d0, 0, dst + i); - vec_st(d1, 16, dst + i); - dst += 8; - } - } - } else { - for (i = 0; i < channels; i++) - float_to_int16_stride_altivec(dst + i, src[i], len, channels); - } - } -} - -av_cold void ff_fmt_convert_init_altivec(FmtConvertContext *c, AVCodecContext *avctx) -{ - c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_altivec; - if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { - c->float_to_int16 = float_to_int16_altivec; - c->float_to_int16_interleave = float_to_int16_interleave_altivec; - } -} |
