/* * Copyright (c) 2006 Luca Barbato <lu_zero@gentoo.org> * * 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 "util_altivec.h" #include "float_dsp_altivec.h" void ff_vector_fmul_altivec(float *dst, const float *src0, const float *src1, int len) { int i; vec_f d0, d1, s, zero = (vec_f)vec_splat_u32(0); for (i = 0; i < len - 7; i += 8) { d0 = vec_ld( 0, src0 + i); s = vec_ld( 0, src1 + i); d1 = vec_ld(16, src0 + i); d0 = vec_madd(d0, s, zero); d1 = vec_madd(d1, vec_ld(16, src1 + i), zero); vec_st(d0, 0, dst + i); vec_st(d1, 16, dst + i); } } void ff_vector_fmul_window_altivec(float *dst, const float *src0, const float *src1, const float *win, int len) { vec_f zero, t0, t1, s0, s1, wi, wj; const vec_u8 reverse = vcprm(3, 2, 1, 0); int i, j; dst += len; win += len; src0 += len; zero = (vec_f)vec_splat_u32(0); for (i = -len * 4, j = len * 4 - 16; i < 0; i += 16, j -= 16) { s0 = vec_ld(i, src0); s1 = vec_ld(j, src1); wi = vec_ld(i, win); wj = vec_ld(j, win); s1 = vec_perm(s1, s1, reverse); wj = vec_perm(wj, wj, reverse); t0 = vec_madd(s0, wj, zero); t0 = vec_nmsub(s1, wi, t0); t1 = vec_madd(s0, wi, zero); t1 = vec_madd(s1, wj, t1); t1 = vec_perm(t1, t1, reverse); vec_st(t0, i, dst); vec_st(t1, j, dst); } } void ff_vector_fmul_add_altivec(float *dst, const float *src0, const float *src1, const float *src2, int len) { int i; vec_f d, s0, s1, s2, t0, t1, edges; vec_u8 align = vec_lvsr(0, dst); vec_u8 mask = vec_lvsl(0, dst); for (i = 0; i < len - 3; i += 4) { t0 = vec_ld(0, dst + i); t1 = vec_ld(15, dst + i); s0 = vec_ld(0, src0 + i); s1 = vec_ld(0, src1 + i); s2 = vec_ld(0, src2 + i); edges = vec_perm(t1, t0, mask); d = vec_madd(s0, s1, s2); t1 = vec_perm(d, edges, align); t0 = vec_perm(edges, d, align); vec_st(t1, 15, dst + i); vec_st(t0, 0, dst + i); } } void ff_vector_fmul_reverse_altivec(float *dst, const float *src0, const float *src1, int len) { int i; vec_f d, s0, s1, h0, l0, s2, s3; vec_f zero = (vec_f)vec_splat_u32(0); src1 += len-4; for(i = 0; i < len - 7; i += 8) { s1 = vec_ld(0, src1 - i); // [a,b,c,d] s0 = vec_ld(0, src0 + i); l0 = vec_mergel(s1, s1); // [c,c,d,d] s3 = vec_ld(-16, src1 - i); h0 = vec_mergeh(s1, s1); // [a,a,b,b] s2 = vec_ld(16, src0 + i); s1 = vec_mergeh(vec_mergel(l0, h0), // [d,b,d,b] vec_mergeh(l0, h0)); // [c,a,c,a] // [d,c,b,a] l0 = vec_mergel(s3, s3); d = vec_madd(s0, s1, zero); h0 = vec_mergeh(s3, s3); vec_st(d, 0, dst + i); s3 = vec_mergeh(vec_mergel(l0, h0), vec_mergeh(l0, h0)); d = vec_madd(s2, s3, zero); vec_st(d, 16, dst + i); } }