From 08f5624a15d0064acc4ea985e6f9e5f8df845bce Mon Sep 17 00:00:00 2001 From: Tim Blechmann Date: Sat, 4 Sep 2004 21:27:12 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r2003, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/tb/; revision=2004 --- volctl~/volctl~.c | 274 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100644 volctl~/volctl~.c (limited to 'volctl~/volctl~.c') diff --git a/volctl~/volctl~.c b/volctl~/volctl~.c new file mode 100644 index 0000000..9ef96de --- /dev/null +++ b/volctl~/volctl~.c @@ -0,0 +1,274 @@ +/* Copyright (c) 2004 Tim Blechmann. + *For information on usage and redistribution, and for a DISCLAIMER OF ALL + *WARRANTIES, see the file, "gpl.txt" in this distribution. + * + *This program is free software; you can redistribute it and/or + *modify it under the terms of the GNU General Public License + *as published by the Free Software Foundation; either version 2 + *of the License, or (at your option) any later version. + * + *See file LICENSE for further informations on licensing terms. + * + *This program 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 General Public License for more details. + * + *You should have received a copy of the GNU General Public License + *along with this program; if not, write to the Free Software + *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + *Based on PureData by Miller Puckette and others. + * + * coded while listening to: Julien Ottavi: Nervure Magnetique + * */ + + +#include "m_pd.h" + +#include "m_simd.h" + + +/* ----------------------------- volctl ----------------------------- */ + +static t_class *volctl_class; + +typedef struct _volctl +{ + t_object x_obj; + float x_f; + + float x_h; //interpolation time + float x_value; //current factor + + int x_ticksleft; //ticks to go + float x_mspersample; //ms per sample + float x_slope; //slope + + int x_line; + +} t_volctl; + +void *volctl_new(t_symbol *s, int argc, t_atom *argv) +{ + if (argc > 2) post("volctl~: extra arguments ignored"); + + t_volctl *x = (t_volctl *)pd_new(volctl_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("f1")); + inlet_settip(x->x_obj.ob_inlet,gensym("factor")); + x->x_value = atom_getfloatarg(0, argc, argv); + + t_inlet * time = floatinlet_new(&x->x_obj, &x->x_h); + inlet_settip(time,gensym("interpolation_time")); + x->x_h = atom_getfloatarg(1, argc, argv); + + x->x_mspersample = 1000.f / 44100; // assume default samplerate + + outlet_new(&x->x_obj, &s_signal); + x->x_f = 0; + return (x); +} + +t_int *volctl_perform(t_int *w) +{ + t_volctl * x = (t_volctl *)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + int n = (int)(w[4]); + + float f = x->x_value; + + if (x->x_ticksleft) + { + float x_slope = x->x_slope; + if (x->x_ticksleft < n) + { + int remain = x->x_ticksleft; + n-=remain; + while (remain--) + { + f+=x_slope; + *out++ = *in++ * f; + } + while (n--) + { + *out++ = *in++ * f; + } + x->x_value = f; + x->x_ticksleft = 0; + } + else + { + x->x_ticksleft -=n; + while (n--) + { + f+=x_slope; + *out++ = *in++ * f; + } + x->x_value = f; + } + } + else + while (n--) *out++ = *in++ * f; + + return (w+5); +} + + +t_int *volctl_perf8(t_int *w) +{ + t_volctl * x = (t_volctl *)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + int n = (int)(w[4]); + + float f = x->x_value; + + if (x->x_ticksleft) + { + float x_slope = x->x_slope; + if (x->x_ticksleft < n) + { + int remain = x->x_ticksleft; + n-=remain; + while (remain--) + { + *out++ = *in++ * f; + f+=x_slope; + } + while (n--) + { + *out++ = *in++ * f; + } + x->x_value = f; + x->x_ticksleft = 0; + } + else + { + x->x_ticksleft -= n; + while (n--) + { + *out++ = *in++ * f; + f+=x_slope; + } + x->x_value = f; + } + } + else + { + for (; n; n -= 8, in += 8, out += 8) + { + float f0 = in[0], f1 = in[1], f2 = in[2], f3 = in[3]; + float f4 = in[4], f5 = in[5], f6 = in[6], f7 = in[7]; + + out[0] = f0 * f; out[1] = f1 * f; out[2] = f2 * f; out[3] = f3 * f; + out[4] = f4 * f; out[5] = f5 * f; out[6] = f6 * f; out[7] = f7 * f; + } + } + return (w+5); +} + +t_int *volctl_perf_simd(t_int *w) +{ + t_volctl * x = (t_volctl *)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + + if (x->x_ticksleft) + { + int n = (int)(w[4]); + + float f = x->x_value; + + float x_slope = x->x_slope; + if (x->x_ticksleft < n) + { + int remain = x->x_ticksleft; + n-=remain; + while (remain--) + { + *out++ = *in++ * f; + f+=x_slope; + } + while (n--) + { + *out++ = *in++ * f; + } + x->x_value = f; + x->x_ticksleft = 0; + } + else + { + x->x_ticksleft -= n; + while (n--) + { + *out++ = *in++ * f; + f+=x_slope; + } + x->x_value = f; + } + } + else + { + asm( + ".set T_FLOAT,4 \n" + + "movss (%3), %%xmm0 \n" + "shufps $0, %%xmm0, %%xmm0 \n" + "shrl $4, %2 \n" + + "volctl_loop: \n" + "movaps (%0), %%xmm1 \n" + "mulps %%xmm0, %%xmm1 \n" + "movaps %%xmm1, (%1) \n" + "movaps 4*T_FLOAT(%0), %%xmm2 \n" + "mulps %%xmm0, %%xmm2 \n" + "movaps %%xmm2, 4*T_FLOAT(%1) \n" + "movaps 8*T_FLOAT(%0), %%xmm3 \n" + "mulps %%xmm0, %%xmm3 \n" + "movaps %%xmm3, 8*T_FLOAT(%1) \n" + "movaps 12*T_FLOAT(%0), %%xmm4 \n" + "mulps %%xmm0, %%xmm4 \n" + "movaps %%xmm4, 12*T_FLOAT(%1) \n" + "addl $64, %0 \n" + "addl $64, %1 \n" + "loop volctl_loop \n" + : + : "r"(in), "r"(out), + "a"(w[4]),"r"(&(x->x_value)) + : "%xmm0","%xmm1","%xmm2","%xmm3","%xmm4"); + } + return (w+5); +} + + +void volctl_set(t_volctl *x, t_float f) +{ + x->x_ticksleft = x->x_h / x->x_mspersample; + x->x_slope = (f - x->x_value) / x->x_ticksleft; +} + +void volctl_dsp(t_volctl *x, t_signal **sp) +{ + const int n = sp[0]->s_n; + if (n&7) + dsp_add(volctl_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, n); + else + { + if(SIMD_CHECK2(n,sp[0]->s_vec,sp[1]->s_vec)) + dsp_add(volctl_perf_simd, 4, x, sp[0]->s_vec, sp[1]->s_vec, n); + else + dsp_add(volctl_perf8, 4, x, sp[0]->s_vec, sp[1]->s_vec, n); + } + x->x_mspersample = 1000.f / sp[0]->s_sr; +} + +void volctl_tilde_setup(void) +{ + volctl_class = class_new(gensym("volctl~"), (t_newmethod)volctl_new, 0, + sizeof(t_volctl), 0, A_GIMME, 0); + CLASS_MAINSIGNALIN(volctl_class, t_volctl, x_f); + class_addmethod(volctl_class, (t_method)volctl_dsp, gensym("dsp"), 0); + class_addmethod(volctl_class, (t_method)volctl_set, gensym("f1"),A_FLOAT,0); + class_settip(volctl_class,gensym("signal")); +} -- cgit v1.2.1