diff options
Diffstat (limited to 'modules/image_special/pdp_array.c')
| -rw-r--r-- | modules/image_special/pdp_array.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/modules/image_special/pdp_array.c b/modules/image_special/pdp_array.c new file mode 100644 index 0000000..41ea0d5 --- /dev/null +++ b/modules/image_special/pdp_array.c @@ -0,0 +1,194 @@ +/*
+ * Pure Data Packet module.
+ * Copyright (c) 2003 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.
+ *
+ */
+
+
+#include <math.h>
+
+#include "pdp.h"
+#include "pdp_base.h"
+
+
+typedef struct _pdp_array
+{
+ t_object x_obj;
+ t_symbol *x_array_sym;
+ t_outlet *x_outlet; // for array->pdp
+ t_int x_rows;
+
+ /* the packet */
+ int x_packet0;
+
+} t_pdp_array;
+
+
+static void pdp_array_bang(t_pdp_array *x)
+{
+ post("not implemented");
+}
+
+
+static void pdp_array_input_0(t_pdp_array *x, t_symbol *s, t_floatarg f)
+{
+ int packet = (int)f;
+
+
+ /* register */
+ if (s == gensym("register_ro")){
+ /* replace if not compatible or we are not interpolating */
+ pdp_packet_mark_unused(x->x_packet0);
+ x->x_packet0 = pdp_packet_convert_ro(packet, pdp_gensym("image/grey/*"));
+ }
+
+ /* process */
+ if (s == gensym("process")){
+ float *vec;
+ int nbpoints;
+ t_garray *a;
+ t_pdp *header = pdp_packet_header(x->x_packet0);
+ short int *data = pdp_packet_data(x->x_packet0);
+ if (!header || !data) return;
+
+ /* dump to array if possible */
+ if (!x->x_array_sym){
+ }
+
+ /* check if array is valid */
+ else if (!(a = (t_garray *)pd_findbyclass(x->x_array_sym, garray_class))){
+ post("pdp_array: %s: no such array", x->x_array_sym->s_name);
+ }
+ /* get data */
+ else if (!garray_getfloatarray(a, &nbpoints, &vec)){
+ post("pdp_array: %s: bad template", x->x_array_sym->s_name);
+ }
+ /* scale and dump in array */
+ else{
+ int i;
+ int w = header->info.image.width;
+ int h = header->info.image.height;
+ int N = w*h;
+ N = (nbpoints < N) ? nbpoints : N;
+
+ /* scan rows */
+ if (x->x_rows){
+ for (i=0; i<N; i++)
+ vec[i] = (float)data[i] * (1.0f / (float)0x8000);
+ }
+ /* scan columns */
+ else{
+ for (i=0; i<N; i++) {
+ int x = i / h;
+ int y = i % h;
+ vec[i] = (float)data[x+(h-y-1)*w] * (1.0f / (float)0x8000);
+ }
+ }
+ //garray_redraw(a);
+ }
+
+ }
+}
+
+static void pdp_array_array(t_pdp_array *x, t_symbol *s)
+{
+ //post("setting symbol %x", s);
+ x->x_array_sym = s;
+ x->x_packet0 = -1;
+}
+
+
+static void pdp_array_free(t_pdp_array *x)
+{
+ pdp_packet_mark_unused(x->x_packet0);
+}
+
+
+t_class *pdp_array2grey_class;
+t_class *pdp_grey2array_class;
+
+
+
+void *pdp_array2grey_new(t_symbol *s, t_symbol *r)
+{
+ t_pdp_array *x = (t_pdp_array *)pd_new(pdp_array2grey_class);
+ pdp_array_array(x, s);
+ return (void *)x;
+}
+
+void *pdp_grey2array_new(t_symbol *s, t_symbol *r)
+{
+ t_pdp_array *x = (t_pdp_array *)pd_new(pdp_grey2array_class);
+ pdp_array_array(x, s);
+ if (r == gensym("rows")){
+ x->x_rows = 1;
+ post("pdp_grey2array: scanning rows");
+ }
+ else {
+ x->x_rows = 0;
+ post("pdp_grey2array: scanning columns");
+ }
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_array_setup(void)
+{
+
+ pdp_array2grey_class = class_new(gensym("pdp_array2grey"),
+ (t_newmethod)pdp_array2grey_new,
+ (t_method)pdp_array_free,
+ sizeof(t_pdp_array),
+ 0, A_DEFSYMBOL, A_DEFSYMBOL, A_NULL);
+
+ pdp_grey2array_class = class_new(gensym("pdp_grey2array"),
+ (t_newmethod)pdp_grey2array_new,
+ (t_method)pdp_array_free,
+ sizeof(t_pdp_array),
+ 0, A_DEFSYMBOL, A_DEFSYMBOL, A_NULL);
+
+
+ /* packet input */
+ class_addmethod(pdp_grey2array_class,
+ (t_method)pdp_array_input_0,
+ gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+ /* bang method */
+ class_addmethod(pdp_array2grey_class,
+ (t_method)pdp_array_bang, gensym("bang"), A_NULL);
+
+
+ /* bookkeeping */
+ class_addmethod(pdp_array2grey_class, (t_method)pdp_array_array,
+ gensym("array"), A_SYMBOL, A_NULL);
+ class_addmethod(pdp_grey2array_class, (t_method)pdp_array_array,
+ gensym("array"), A_SYMBOL, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
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