diff options
Diffstat (limited to 'libavutil/ppc')
| -rw-r--r-- | libavutil/ppc/Makefile | 3 | ||||
| -rw-r--r-- | libavutil/ppc/float_dsp_altivec.c | 37 | ||||
| -rw-r--r-- | libavutil/ppc/float_dsp_init.c | 37 |
3 files changed, 77 insertions, 0 deletions
diff --git a/libavutil/ppc/Makefile b/libavutil/ppc/Makefile index 5b18b08957..4fd8d6d57e 100644 --- a/libavutil/ppc/Makefile +++ b/libavutil/ppc/Makefile @@ -1 +1,4 @@ OBJS += ppc/cpu.o \ + ppc/float_dsp_init.o \ + +ALTIVEC-OBJS += ppc/float_dsp_altivec.o \ diff --git a/libavutil/ppc/float_dsp_altivec.c b/libavutil/ppc/float_dsp_altivec.c new file mode 100644 index 0000000000..f08abc8d6f --- /dev/null +++ b/libavutil/ppc/float_dsp_altivec.c @@ -0,0 +1,37 @@ +/* + * 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); + } +} diff --git a/libavutil/ppc/float_dsp_init.c b/libavutil/ppc/float_dsp_init.c new file mode 100644 index 0000000000..0477749e83 --- /dev/null +++ b/libavutil/ppc/float_dsp_init.c @@ -0,0 +1,37 @@ +/* + * 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 "libavutil/cpu.h" +#include "libavutil/float_dsp.h" + +extern void ff_vector_fmul_altivec(float *dst, const float *src0, + const float *src1, int len); + +void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int bit_exact) +{ +#if HAVE_ALTIVEC + int mm_flags = av_get_cpu_flags(); + + if (!(mm_flags & AV_CPU_FLAG_ALTIVEC)) + return; + + fdsp->vector_fmul = ff_vector_fmul_altivec; +#endif +} |