diff options
Diffstat (limited to 'pd/src/d_math.c')
| -rw-r--r-- | pd/src/d_math.c | 174 |
1 files changed, 87 insertions, 87 deletions
diff --git a/pd/src/d_math.c b/pd/src/d_math.c index d64e2e34..e04a6738 100644 --- a/pd/src/d_math.c +++ b/pd/src/d_math.c @@ -41,10 +41,10 @@ static t_int *clip_perform(t_int *w) int n = (int)(w[4]); while (n--) { - float f = *in++; - if (f < x->x_lo) f = x->x_lo; - if (f > x->x_hi) f = x->x_hi; - *out++ = f; + float f = *in++; + if (f < x->x_lo) f = x->x_lo; + if (f > x->x_hi) f = x->x_hi; + *out++ = f; } return (w+5); } @@ -57,7 +57,7 @@ static void clip_dsp(t_clip *x, t_signal **sp) static void clip_setup(void) { clip_class = class_new(gensym("clip~"), (t_newmethod)clip_new, 0, - sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0); + sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0); CLASS_MAINSIGNALIN(clip_class, t_clip, x_f); class_addmethod(clip_class, (t_method)clip_dsp, gensym("dsp"), 0); } @@ -74,15 +74,15 @@ static void init_rsqrt(void) int i; for (i = 0; i < DUMTAB1SIZE; i++) { - float f; - long l = (i ? (i == DUMTAB1SIZE-1 ? DUMTAB1SIZE-2 : i) : 1)<< 23; - *(long *)(&f) = l; - rsqrt_exptab[i] = 1./sqrt(f); + float f; + long l = (i ? (i == DUMTAB1SIZE-1 ? DUMTAB1SIZE-2 : i) : 1)<< 23; + *(long *)(&f) = l; + rsqrt_exptab[i] = 1./sqrt(f); } for (i = 0; i < DUMTAB2SIZE; i++) { - float f = 1 + (1./DUMTAB2SIZE) * i; - rsqrt_mantissatab[i] = 1./sqrt(f); + float f = 1 + (1./DUMTAB2SIZE) * i; + rsqrt_mantissatab[i] = 1./sqrt(f); } } @@ -93,7 +93,7 @@ float q8_rsqrt(float f) long l = *(long *)(&f); if (f < 0) return (0); else return (rsqrt_exptab[(l >> 23) & 0xff] * - rsqrt_mantissatab[(l >> 13) & 0x3ff]); + rsqrt_mantissatab[(l >> 13) & 0x3ff]); } float q8_sqrt(float f) @@ -101,7 +101,7 @@ float q8_sqrt(float f) long l = *(long *)(&f); if (f < 0) return (0); else return (f * rsqrt_exptab[(l >> 23) & 0xff] * - rsqrt_mantissatab[(l >> 13) & 0x3ff]); + rsqrt_mantissatab[(l >> 13) & 0x3ff]); } /* the old names are OK unless we're in IRIX N32 */ @@ -134,16 +134,16 @@ static t_int *sigrsqrt_perform(t_int *w) float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2); t_int n = *(t_int *)(w+3); while (n--) - { - float f = *in; - long l = *(long *)(in++); - if (f < 0) *out++ = 0; - else - { - float g = rsqrt_exptab[(l >> 23) & 0xff] * - rsqrt_mantissatab[(l >> 13) & 0x3ff]; - *out++ = 1.5 * g - 0.5 * g * g * g * f; - } + { + float f = *in; + long l = *(long *)(in++); + if (f < 0) *out++ = 0; + else + { + float g = rsqrt_exptab[(l >> 23) & 0xff] * + rsqrt_mantissatab[(l >> 13) & 0x3ff]; + *out++ = 1.5 * g - 0.5 * g * g * g * f; + } } return (w + 4); } @@ -157,8 +157,8 @@ void sigrsqrt_setup(void) { init_rsqrt(); sigrsqrt_class = class_new(gensym("rsqrt~"), (t_newmethod)sigrsqrt_new, 0, - sizeof(t_sigrsqrt), 0, 0); - /* an old name for it: */ + sizeof(t_sigrsqrt), 0, 0); + /* an old name for it: */ class_addcreator(sigrsqrt_new, gensym("q8_rsqrt~"), 0); CLASS_MAINSIGNALIN(sigrsqrt_class, t_sigrsqrt, x_f); class_addmethod(sigrsqrt_class, (t_method)sigrsqrt_dsp, gensym("dsp"), 0); @@ -188,16 +188,16 @@ t_int *sigsqrt_perform(t_int *w) /* not static; also used in d_fft.c */ float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2); t_int n = *(t_int *)(w+3); while (n--) - { - float f = *in; - long l = *(long *)(in++); - if (f < 0) *out++ = 0; - else - { - float g = rsqrt_exptab[(l >> 23) & 0xff] * - rsqrt_mantissatab[(l >> 13) & 0x3ff]; - *out++ = f * (1.5 * g - 0.5 * g * g * g * f); - } + { + float f = *in; + long l = *(long *)(in++); + if (f < 0) *out++ = 0; + else + { + float g = rsqrt_exptab[(l >> 23) & 0xff] * + rsqrt_mantissatab[(l >> 13) & 0x3ff]; + *out++ = f * (1.5 * g - 0.5 * g * g * g * f); + } } return (w + 4); } @@ -210,7 +210,7 @@ static void sigsqrt_dsp(t_sigsqrt *x, t_signal **sp) void sigsqrt_setup(void) { sigsqrt_class = class_new(gensym("sqrt~"), (t_newmethod)sigsqrt_new, 0, - sizeof(t_sigsqrt), 0, 0); + sizeof(t_sigsqrt), 0, 0); class_addcreator(sigsqrt_new, gensym("q8_sqrt~"), 0); /* old name */ CLASS_MAINSIGNALIN(sigsqrt_class, t_sigsqrt, x_f); class_addmethod(sigsqrt_class, (t_method)sigsqrt_dsp, gensym("dsp"), 0); @@ -239,11 +239,11 @@ static t_int *sigwrap_perform(t_int *w) float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2); t_int n = *(t_int *)(w+3); while (n--) - { - float f = *in++; - int k = f; - if (f > 0) *out++ = f-k; - else *out++ = f - (k-1); + { + float f = *in++; + int k = f; + if (f > 0) *out++ = f-k; + else *out++ = f - (k-1); } return (w + 4); } @@ -256,7 +256,7 @@ static void sigwrap_dsp(t_sigwrap *x, t_signal **sp) void sigwrap_setup(void) { sigwrap_class = class_new(gensym("wrap~"), (t_newmethod)sigwrap_new, 0, - sizeof(t_sigwrap), 0, 0); + sizeof(t_sigwrap), 0, 0); CLASS_MAINSIGNALIN(sigwrap_class, t_sigwrap, x_f); class_addmethod(sigwrap_class, (t_method)sigwrap_dsp, gensym("dsp"), 0); } @@ -285,13 +285,13 @@ static t_int *mtof_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; in++, out++) { - float f = *in; - if (f <= -1500) *out = 0; - else - { - if (f > 1499) f = 1499; - *out = 8.17579891564 * exp(.0577622650 * f); - } + float f = *in; + if (f <= -1500) *out = 0; + else + { + if (f > 1499) f = 1499; + *out = 8.17579891564 * exp(.0577622650 * f); + } } return (w + 4); } @@ -304,7 +304,7 @@ static void mtof_tilde_dsp(t_mtof_tilde *x, t_signal **sp) void mtof_tilde_setup(void) { mtof_tilde_class = class_new(gensym("mtof~"), (t_newmethod)mtof_tilde_new, 0, - sizeof(t_mtof_tilde), 0, 0); + sizeof(t_mtof_tilde), 0, 0); CLASS_MAINSIGNALIN(mtof_tilde_class, t_mtof_tilde, x_f); class_addmethod(mtof_tilde_class, (t_method)mtof_tilde_dsp, gensym("dsp"), 0); } @@ -333,8 +333,8 @@ static t_int *ftom_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; *in++, out++) { - float f = *in; - *out = (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500); + float f = *in; + *out = (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500); } return (w + 4); } @@ -347,7 +347,7 @@ static void ftom_tilde_dsp(t_ftom_tilde *x, t_signal **sp) void ftom_tilde_setup(void) { ftom_tilde_class = class_new(gensym("ftom~"), (t_newmethod)ftom_tilde_new, 0, - sizeof(t_ftom_tilde), 0, 0); + sizeof(t_ftom_tilde), 0, 0); CLASS_MAINSIGNALIN(ftom_tilde_class, t_ftom_tilde, x_f); class_addmethod(ftom_tilde_class, (t_method)ftom_tilde_dsp, gensym("dsp"), 0); } @@ -376,14 +376,14 @@ static t_int *dbtorms_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; in++, out++) { - float f = *in; - if (f <= 0) *out = 0; - else - { - if (f > 485) - f = 485; - *out = exp((LOGTEN * 0.05) * (f-100.)); - } + float f = *in; + if (f <= 0) *out = 0; + else + { + if (f > 485) + f = 485; + *out = exp((LOGTEN * 0.05) * (f-100.)); + } } return (w + 4); } @@ -396,7 +396,7 @@ static void dbtorms_tilde_dsp(t_dbtorms_tilde *x, t_signal **sp) void dbtorms_tilde_setup(void) { dbtorms_tilde_class = class_new(gensym("dbtorms~"), (t_newmethod)dbtorms_tilde_new, 0, - sizeof(t_dbtorms_tilde), 0, 0); + sizeof(t_dbtorms_tilde), 0, 0); CLASS_MAINSIGNALIN(dbtorms_tilde_class, t_dbtorms_tilde, x_f); class_addmethod(dbtorms_tilde_class, (t_method)dbtorms_tilde_dsp, gensym("dsp"), 0); } @@ -425,13 +425,13 @@ static t_int *rmstodb_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; in++, out++) { - float f = *in; - if (f <= 0) *out = 0; - else - { - float g = 100 + 20./LOGTEN * log(f); - *out = (g < 0 ? 0 : g); - } + float f = *in; + if (f <= 0) *out = 0; + else + { + float g = 100 + 20./LOGTEN * log(f); + *out = (g < 0 ? 0 : g); + } } return (w + 4); } @@ -444,7 +444,7 @@ static void rmstodb_tilde_dsp(t_rmstodb_tilde *x, t_signal **sp) void rmstodb_tilde_setup(void) { rmstodb_tilde_class = class_new(gensym("rmstodb~"), (t_newmethod)rmstodb_tilde_new, 0, - sizeof(t_rmstodb_tilde), 0, 0); + sizeof(t_rmstodb_tilde), 0, 0); CLASS_MAINSIGNALIN(rmstodb_tilde_class, t_rmstodb_tilde, x_f); class_addmethod(rmstodb_tilde_class, (t_method)rmstodb_tilde_dsp, gensym("dsp"), 0); } @@ -473,14 +473,14 @@ static t_int *dbtopow_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; in++, out++) { - float f = *in; - if (f <= 0) *out = 0; - else - { - if (f > 870) - f = 870; - *out = exp((LOGTEN * 0.1) * (f-100.)); - } + float f = *in; + if (f <= 0) *out = 0; + else + { + if (f > 870) + f = 870; + *out = exp((LOGTEN * 0.1) * (f-100.)); + } } return (w + 4); } @@ -493,7 +493,7 @@ static void dbtopow_tilde_dsp(t_dbtopow_tilde *x, t_signal **sp) void dbtopow_tilde_setup(void) { dbtopow_tilde_class = class_new(gensym("dbtopow~"), (t_newmethod)dbtopow_tilde_new, 0, - sizeof(t_dbtopow_tilde), 0, 0); + sizeof(t_dbtopow_tilde), 0, 0); CLASS_MAINSIGNALIN(dbtopow_tilde_class, t_dbtopow_tilde, x_f); class_addmethod(dbtopow_tilde_class, (t_method)dbtopow_tilde_dsp, gensym("dsp"), 0); } @@ -522,13 +522,13 @@ static t_int *powtodb_tilde_perform(t_int *w) t_int n = *(t_int *)(w+3); for (; n--; in++, out++) { - float f = *in; - if (f <= 0) *out = 0; - else - { - float g = 100 + 10./LOGTEN * log(f); - *out = (g < 0 ? 0 : g); - } + float f = *in; + if (f <= 0) *out = 0; + else + { + float g = 100 + 10./LOGTEN * log(f); + *out = (g < 0 ? 0 : g); + } } return (w + 4); } @@ -541,7 +541,7 @@ static void powtodb_tilde_dsp(t_powtodb_tilde *x, t_signal **sp) void powtodb_tilde_setup(void) { powtodb_tilde_class = class_new(gensym("powtodb~"), (t_newmethod)powtodb_tilde_new, 0, - sizeof(t_powtodb_tilde), 0, 0); + sizeof(t_powtodb_tilde), 0, 0); CLASS_MAINSIGNALIN(powtodb_tilde_class, t_powtodb_tilde, x_f); class_addmethod(powtodb_tilde_class, (t_method)powtodb_tilde_dsp, gensym("dsp"), 0); } |