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-rw-r--r--libavutil/ppc/float_dsp_altivec.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/libavutil/ppc/float_dsp_altivec.c b/libavutil/ppc/float_dsp_altivec.c
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+++ b/libavutil/ppc/float_dsp_altivec.c
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+/*
+ * 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"
+
+void ff_vector_fmul_altivec(float *dst, const float *src0, const float *src1,
+ int len)
+{
+ int i;
+ vector float d0, d1, s, zero = (vector float)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);
+ }
+}