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Diffstat (limited to 'system/pdp_ut.c')
| -rw-r--r-- | system/pdp_ut.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/system/pdp_ut.c b/system/pdp_ut.c deleted file mode 100644 index 83b4cb0..0000000 --- a/system/pdp_ut.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * Pure Data Packet - Utility toolkit objects. - * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> - * - * 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. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - - -/* This file contains some small utility pd objects that make working with - pdp objects a lot easier. Mainly as glue to be used in the abstractions - in the distro. */ - -#include "pdp.h" -#include <math.h> - -/* this object does an add, scale, clip operation */ - -t_class *pdp_ut_addscaleclip_class; - -typedef struct pdp_ut_addscaleclip_struct -{ - t_object x_obj; - t_outlet *x_outlet0; - t_float x_min; - t_float x_max; - t_float x_offset; - t_float x_scale; -} t_pdp_ut_addscaleclip; - - -static void pdp_ut_addscaleclip_float(t_pdp_ut_addscaleclip *x, t_floatarg f) -{ - f += x->x_offset; - f *= x->x_scale; - f = (f < x->x_min) ? x->x_min : f; - f = (f > x->x_max) ? x->x_max : f; - outlet_float(x->x_outlet0, f); -} - -static void pdp_ut_addscaleclip_free(t_pdp_ut_addscaleclip *x){} - -void *pdp_ut_addscaleclip_new(t_floatarg offset, t_floatarg scale, t_floatarg min, t_floatarg max) -{ - t_pdp_ut_addscaleclip *x = (t_pdp_ut_addscaleclip *)pd_new(pdp_ut_addscaleclip_class); - x->x_outlet0 = outlet_new(&x->x_obj, &s_float); - x->x_offset = offset; - x->x_scale = scale; - x->x_min = min; - x->x_max = max; - return (void *)x; -} - -void pdp_ut_addscaleclip_setup(void) -{ - pdp_ut_addscaleclip_class = class_new(gensym("pdp_ut_addscaleclip"), (t_newmethod)pdp_ut_addscaleclip_new, - (t_method)pdp_ut_addscaleclip_free, sizeof(t_pdp_ut_addscaleclip), 0, - A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_NULL); - class_addfloat(pdp_ut_addscaleclip_class, pdp_ut_addscaleclip_float); -} - - -/* pdp_ut_logmap does a logarithmic parameter mapping [0->1] x -> min(max/min)^x max an add, scale, clip operation */ -/* pdp_ut_logmap_comp does x -> min(max/min)^(1-x) */ -/* pdp_ut_linmap dos x -> min + (max - min * x */ - -t_class *pdp_ut_linmap_class; -t_class *pdp_ut_logmap_class; -t_class *pdp_ut_logmap_comp_class; - -typedef struct pdp_ut_map_struct -{ - t_object x_obj; - t_outlet *x_outlet0; - t_float x_min; - t_float x_max; -} t_pdp_ut_map; - - -static void pdp_ut_logmap_float(t_pdp_ut_map *x, t_floatarg f) -{ - f = (f < 0.0f) ? 0.0f : f; - f = (f > 1.0f) ? 1.0f : f; - - f = x->x_min * pow((x->x_max / x->x_min), f); - - outlet_float(x->x_outlet0, f); -} - -static void pdp_ut_linmap_float(t_pdp_ut_map *x, t_floatarg f) -{ - f = (f < 0.0f) ? 0.0f : f; - f = (f > 1.0f) ? 1.0f : f; - - f = x->x_min + ((x->x_max - x->x_min) * f); - - outlet_float(x->x_outlet0, f); -} - -static void pdp_ut_logmap_comp_float(t_pdp_ut_map *x, t_floatarg f) -{ - f = (f < 0.0f) ? 0.0f : f; - f = (f > 1.0f) ? 1.0f : f; - - f = x->x_min * pow((x->x_max / x->x_min), (1.0f - f)); - - outlet_float(x->x_outlet0, f); -} - -static void pdp_ut_map_free(t_pdp_ut_map *x){} - - -void pdp_ut_map_init(t_pdp_ut_map *x, t_floatarg min, t_floatarg max) -{ - x->x_outlet0 = outlet_new(&x->x_obj, &s_float); - x->x_min = min; - x->x_max = max; -} - -void *pdp_ut_logmap_new(t_floatarg min, t_floatarg max) -{ - t_pdp_ut_map *x = (t_pdp_ut_map *)pd_new(pdp_ut_logmap_class); - pdp_ut_map_init(x, min, max); - return (void *)x; -} - -void *pdp_ut_linmap_new(t_floatarg min, t_floatarg max) -{ - t_pdp_ut_map *x = (t_pdp_ut_map *)pd_new(pdp_ut_linmap_class); - pdp_ut_map_init(x, min, max); - return (void *)x; -} - -void *pdp_ut_logmap_comp_new(t_floatarg min, t_floatarg max) -{ - t_pdp_ut_map *x = (t_pdp_ut_map *)pd_new(pdp_ut_logmap_comp_class); - pdp_ut_map_init(x, min, max); - return (void *)x; -} - -void pdp_ut_logmap_setup(void) -{ - pdp_ut_logmap_class = class_new(gensym("pdp_ut_logmap"), (t_newmethod)pdp_ut_logmap_new, - (t_method)pdp_ut_map_free, sizeof(t_pdp_ut_map), 0, - A_FLOAT, A_FLOAT, A_NULL); - class_addfloat(pdp_ut_logmap_class, pdp_ut_logmap_float); -} - -void pdp_ut_logmap_comp_setup(void) -{ - pdp_ut_logmap_comp_class = class_new(gensym("pdp_ut_logmap_comp"), (t_newmethod)pdp_ut_logmap_comp_new, - (t_method)pdp_ut_map_free, sizeof(t_pdp_ut_map), 0, - A_FLOAT, A_FLOAT, A_NULL); - class_addfloat(pdp_ut_logmap_comp_class, pdp_ut_logmap_comp_float); -} - -void pdp_ut_linmap_setup(void) -{ - pdp_ut_linmap_class = class_new(gensym("pdp_ut_linmap"), (t_newmethod)pdp_ut_linmap_new, - (t_method)pdp_ut_map_free, sizeof(t_pdp_ut_map), 0, - A_FLOAT, A_FLOAT, A_NULL); - class_addfloat(pdp_ut_linmap_class, pdp_ut_linmap_float); -} - - - -#ifdef __cplusplus -extern "C" -{ -#endif - -void pdp_ut_setup(void) -{ - pdp_ut_addscaleclip_setup(); - pdp_ut_logmap_setup(); - pdp_ut_logmap_comp_setup(); - pdp_ut_linmap_setup(); -} - - -#ifdef __cplusplus -} -#endif |