diff options
Diffstat (limited to 'composer/pattern.c')
| -rw-r--r-- | composer/pattern.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/composer/pattern.c b/composer/pattern.c new file mode 100644 index 0000000..134b802 --- /dev/null +++ b/composer/pattern.c @@ -0,0 +1,142 @@ +/* ------------------------------------------------------------------------ */ +/* Copyright (c) 2009 Federico Ferri. */ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL */ +/* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ +/* */ +/* composer: a music composition framework for pure-data */ +/* */ +/* 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. */ +/* ------------------------------------------------------------------------ */ + +#include "common.h" + +static t_pattern* pattern_new(t_track* track, t_symbol* name, t_int rows) { + ArrayListGetByName(track->x_patterns, name, t_pattern*, obj); + debugprint("pattern_new - object lookup {{%s}} => " PTR, name->s_name, obj); + if(obj) return obj; + + t_pattern* x = (t_pattern*)getbytes(sizeof(t_pattern)); + x->x_name = name; + x->x_track = track; + ArrayListInit(x->x_rows, t_atom*, rows); + + int i; + for(i = 0; i < rows; i++) { + debugprint("x->x_rows[%d] = " PTR, i, x->x_rows[i]); + pattern_new_empty_row(x); + debugprint("x->x_rows[%d] <- " PTR, i, x->x_rows[i]); + } + + debugprint("created new pattern " PTR " with %d rows (x_rows = " PTR ")", x, x->x_rows_count, x->x_rows); + + // add pattern to track's pattern list + ArrayListAdd(x->x_track->x_patterns, t_pattern*, x); + return x; +} + +static t_pattern* pattern_clone(t_pattern* src, t_symbol* newname) { + t_pattern* x = (t_pattern*)getbytes(sizeof(t_pattern)); + x->x_name = newname; + x->x_track = src->x_track; + ArrayListInit(x->x_rows, t_atom*, src->x_rows_count); + + int i; + for(i = 0; i < src->x_rows_count; i++) { + ArrayListAdd(x->x_rows, t_atom*, pattern_clone_row(x, src->x_rows[i])); + } + + ArrayListAdd(x->x_track->x_patterns, t_pattern*, x); + return x; +} + +static void pattern_free(t_pattern* x) { + // free rows memory + ArrayListFree(x->x_rows, t_atom*); + // remove pattern from track's pattern list + ArrayListRemove(x->x_track->x_patterns, x); +} + +static void pattern_rename(t_pattern* x, t_symbol* newname) { + x->x_name = newname; +} + +static void pattern_resize(t_pattern *x, t_int newsize) { + debugprint("pattern_resize(" PTR ", %d)", x, newsize); + debugprint("initial size: %d", x->x_rows_count); + while(x->x_rows_count < newsize) + pattern_new_empty_row(x); + while(x->x_rows_count > newsize) + ArrayListRemoveByIndex(x->x_rows, x->x_rows_count - 1); + debugprint("final size: %d", x->x_rows_count); +} + +static void pattern_new_empty_row(t_pattern* x) { + t_atom* rowdata = (t_atom*)getbytes(sizeof(t_atom) * x->x_track->x_ncolumns); + SETSYMBOL(&(rowdata[0]), gensym("test")); + int j; + for(j = 1; j < x->x_track->x_ncolumns; j++) + SETFLOAT(&(rowdata[j]), j); + ArrayListAdd(x->x_rows, t_atom*, rowdata); +} + +static t_atom* pattern_getrow(t_pattern* x, t_int row) { + debugprint("pattern_getrow(" PTR ", %d)", x, row); + row = WRAP(row, x->x_rows_count); + t_atom* rowdata = x->x_rows[row]; + return rowdata; +} + +static t_atom* pattern_clone_row(t_pattern* x, t_atom* rowdata) { + debugprint("pattern_clone_row(" PTR ", " PTR ")", x, rowdata); + t_atom* clone = (t_atom*)copybytes(rowdata, sizeof(t_atom) * x->x_track->x_ncolumns); + return clone; +} + +static t_atom* pattern_getcell(t_pattern* x, t_int row, t_int col) { + row = WRAP(row, x->x_rows_count); + col = WRAP(col, x->x_track->x_ncolumns); + return &(x->x_rows[row][col]); +} + +static void pattern_setrow(t_pattern* x, t_int row, t_atom* rowdata) { + debugprint("pattern_setrow(" PTR ", %d, " PTR ")", x, row, rowdata); + row = WRAP(row, x->x_rows_count); + debugprint("x->x_rows[%d] = " PTR, row, x->x_rows[row]); + t_atom *myrowdata = x->x_rows[row]; + memcpy(myrowdata, rowdata, sizeof(t_atom) * x->x_track->x_ncolumns); + debugprint("x->x_rows[%d] <- " PTR, row, x->x_rows[row]); +} + +static void pattern_setcell(t_pattern* x, t_int row, t_int col, t_atom* a) { + row = WRAP(row, x->x_rows_count); + col = WRAP(col, x->x_track->x_ncolumns); + debugprint("about to write an atom (size=%d) at address " PTR, sizeof(t_atom), &(x->x_rows[row][col])); + memcpy(&(x->x_rows[row][col]), a, sizeof(t_atom)); +} + +static t_pattern* pattern_get(t_symbol* song_name, t_symbol* track_name, t_symbol* pattern_name) { + t_track* track = track_get(song_name, track_name); + if(!track || !track->x_patterns) return (t_pattern*) 0L; + ArrayListGetByName(track->x_patterns, pattern_name, t_pattern*, result); + return result; +} + +static int pattern_exists(t_symbol* song_name, t_symbol* track_name, t_symbol* pattern_name) { + return pattern_get(song_name, track_name, pattern_name) != 0L; +} |