ppc: vsx: Implement float_dsp
This commit is contained in:
Luca Barbato
parent
7d07ee5a9b
commit
eecd29b3fd
1
arch.mak
1
arch.mak
@ -5,6 +5,7 @@ OBJS-$(HAVE_VFP) += $(VFP-OBJS) $(VFP-OBJS-yes)
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OBJS-$(HAVE_NEON) += $(NEON-OBJS) $(NEON-OBJS-yes)
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OBJS-$(HAVE_NEON) += $(NEON-OBJS) $(NEON-OBJS-yes)
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OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
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OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
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OBJS-$(HAVE_VSX) += $(VSX-OBJS) $(VSX-OBJS-yes)
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OBJS-$(HAVE_MMX) += $(MMX-OBJS) $(MMX-OBJS-yes)
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OBJS-$(HAVE_MMX) += $(MMX-OBJS) $(MMX-OBJS-yes)
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OBJS-$(HAVE_YASM) += $(YASM-OBJS) $(YASM-OBJS-yes)
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OBJS-$(HAVE_YASM) += $(YASM-OBJS) $(YASM-OBJS-yes)
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@ -2,3 +2,5 @@ OBJS += ppc/cpu.o \
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ppc/float_dsp_init.o \
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ppc/float_dsp_init.o \
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ALTIVEC-OBJS += ppc/float_dsp_altivec.o \
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ALTIVEC-OBJS += ppc/float_dsp_altivec.o \
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VSX-OBJS += ppc/float_dsp_vsx.o \
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@ -24,18 +24,26 @@
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#include "libavutil/float_dsp.h"
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#include "libavutil/float_dsp.h"
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#include "libavutil/ppc/cpu.h"
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#include "libavutil/ppc/cpu.h"
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#include "float_dsp_altivec.h"
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#include "float_dsp_altivec.h"
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#include "float_dsp_vsx.h"
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av_cold void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int bit_exact)
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av_cold void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int bit_exact)
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{
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{
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if (!PPC_ALTIVEC(av_get_cpu_flags()))
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if (HAVE_BIGENDIAN && PPC_ALTIVEC(av_get_cpu_flags())) {
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return;
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fdsp->vector_fmul = ff_vector_fmul_altivec;
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#if HAVE_BIGENDIAN
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fdsp->vector_fmul_add = ff_vector_fmul_add_altivec;
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fdsp->vector_fmul = ff_vector_fmul_altivec;
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fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_altivec;
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fdsp->vector_fmul_add = ff_vector_fmul_add_altivec;
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fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_altivec;
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if (!bit_exact) {
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if (!bit_exact) {
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fdsp->vector_fmul_window = ff_vector_fmul_window_altivec;
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fdsp->vector_fmul_window = ff_vector_fmul_window_altivec;
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}
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}
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if (PPC_VSX(av_get_cpu_flags())) {
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fdsp->vector_fmul = ff_vector_fmul_vsx;
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fdsp->vector_fmul_add = ff_vector_fmul_add_vsx;
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fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_vsx;
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if (!bit_exact) {
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fdsp->vector_fmul_window = ff_vector_fmul_window_vsx;
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}
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}
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}
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#endif
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}
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}
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117
libavutil/ppc/float_dsp_vsx.c
Normal file
117
libavutil/ppc/float_dsp_vsx.c
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@ -0,0 +1,117 @@
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/*
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* Copyright (c) 2015 Luca Barbato <lu_zero@gentoo.org>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "util_altivec.h"
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#include "float_dsp_vsx.h"
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void ff_vector_fmul_vsx(float *dst,
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const float *src0, const float *src1,
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int len)
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{
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int i;
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vec_f d0, d1, zero = (vec_f)vec_splat_u32(0);
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for (i = 0; i < len - 7; i += 8) {
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d0 = vec_vsx_ld( 0, src0 + i);
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d1 = vec_vsx_ld(16, src0 + i);
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d0 = vec_madd(d0, vec_vsx_ld( 0, src1 + i), zero);
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d1 = vec_madd(d1, vec_vsx_ld(16, src1 + i), zero);
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vec_vsx_st(d0, 0, dst + i);
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vec_vsx_st(d1, 16, dst + i);
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}
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}
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void ff_vector_fmul_window_vsx(float *dst, const float *src0,
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const float *src1, const float *win,
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int len)
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{
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vec_f zero, t0, t1, s0, s1, wi, wj;
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const vec_u8 reverse = vcprm(3, 2, 1, 0);
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int i, j;
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dst += len;
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win += len;
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src0 += len;
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zero = (vec_f)vec_splat_u32(0);
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for (i = -len * 4, j = len * 4 - 16; i < 0; i += 16, j -= 16) {
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s0 = vec_vsx_ld(i, src0);
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s1 = vec_vsx_ld(j, src1);
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wi = vec_vsx_ld(i, win);
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wj = vec_vsx_ld(j, win);
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s1 = vec_perm(s1, s1, reverse);
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wj = vec_perm(wj, wj, reverse);
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t0 = vec_madd(s0, wj, zero);
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t0 = vec_nmsub(s1, wi, t0);
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t1 = vec_madd(s0, wi, zero);
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t1 = vec_madd(s1, wj, t1);
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t1 = vec_perm(t1, t1, reverse);
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vec_vsx_st(t0, i, dst);
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vec_vsx_st(t1, j, dst);
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}
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}
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void ff_vector_fmul_add_vsx(float *dst, const float *src0,
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const float *src1, const float *src2,
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int len)
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{
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int i;
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vec_f d, s0, s1, s2;
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for (i = 0; i < len - 3; i += 4) {
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s0 = vec_vsx_ld(0, src0 + i);
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s1 = vec_vsx_ld(0, src1 + i);
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s2 = vec_vsx_ld(0, src2 + i);
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d = vec_madd(s0, s1, s2);
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vec_vsx_st(d, 0, dst + i);
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}
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}
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void ff_vector_fmul_reverse_vsx(float *dst, const float *src0,
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const float *src1, int len)
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{
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int i;
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vec_f d, s0, s1, h0, l0, s2, s3;
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vec_f zero = (vec_f)vec_splat_u32(0);
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src1 += len - 4;
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for (i = 0; i < len - 7; i += 8) {
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s1 = vec_vsx_ld(0, src1 - i); // [a,b,c,d]
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s0 = vec_vsx_ld(0, src0 + i);
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l0 = vec_mergel(s1, s1); // [c,c,d,d]
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s3 = vec_vsx_ld(-16, src1 - i);
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h0 = vec_mergeh(s1, s1); // [a,a,b,b]
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s2 = vec_vsx_ld(16, src0 + i);
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s1 = vec_mergeh(vec_mergel(l0, h0), // [d,b,d,b]
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vec_mergeh(l0, h0)); // [c,a,c,a]
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// [d,c,b,a]
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l0 = vec_mergel(s3, s3);
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d = vec_madd(s0, s1, zero);
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h0 = vec_mergeh(s3, s3);
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vec_vsx_st(d, 0, dst + i);
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s3 = vec_mergeh(vec_mergel(l0, h0),
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vec_mergeh(l0, h0));
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d = vec_madd(s2, s3, zero);
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vec_vsx_st(d, 16, dst + i);
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}
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}
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38
libavutil/ppc/float_dsp_vsx.h
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38
libavutil/ppc/float_dsp_vsx.h
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@ -0,0 +1,38 @@
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/*
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* Copyright (c) 2015 Luca Barbato <lu_zero@gentoo.org>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_PPC_FLOAT_DSP_VSX_H
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#define AVUTIL_PPC_FLOAT_DSP_VSX_H
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void ff_vector_fmul_vsx(float *dst, const float *src0,
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const float *src1, int len);
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void ff_vector_fmul_window_vsx(float *dst, const float *src0,
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const float *src1, const float *win,
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int len);
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void ff_vector_fmul_add_vsx(float *dst, const float *src0,
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const float *src1, const float *src2,
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int len);
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void ff_vector_fmul_reverse_vsx(float *dst, const float *src0,
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const float *src1, int len);
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#endif /* AVUTIL_PPC_FLOAT_DSP_VSX_H */
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