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-rw-r--r--modules/pdp_smuck.c228
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diff --git a/modules/pdp_smuck.c b/modules/pdp_smuck.c
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+/*
+ * PiDiP module.
+ * Copyright (c) by Yves Degoyon (ydegoyon@free.fr)
+ *
+ * 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 object is an adaptation of smuck effect from veejay
+ * But it it inspired by effectv's transform ( mode 5 )
+ * Originally written by Niels Elburg
+ * Pd-fication by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+#define MAX_N 100
+
+static int fastrand_val=0;
+#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345)
+
+static char *pdp_smuck_version = "pdp_smuck: version 0.1, port of smuck from veejay( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_smuck_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_int x_packet0;
+ t_int x_packet1;
+ t_int x_dropped;
+ t_int x_queue_id;
+
+ t_int x_vwidth;
+ t_int x_vheight;
+ t_int x_vsize;
+
+ t_int x_n; // transform number
+
+} t_pdp_smuck;
+
+static void pdp_smuck_free_ressources(t_pdp_smuck *x)
+{
+ // nothing
+}
+
+static void pdp_smuck_allocate(t_pdp_smuck *x)
+{
+ // nothing
+}
+
+static void pdp_smuck_n(t_pdp_smuck *x, t_floatarg fn )
+{
+ if ( ( fn >= 0 ) && ( fn < MAX_N ) )
+ {
+ x->x_n = fn;
+ }
+}
+
+static void pdp_smuck_process_yv12(t_pdp_smuck *x)
+{
+ t_pdp *header = pdp_packet_header(x->x_packet0);
+ short int *data = (short int *)pdp_packet_data(x->x_packet0);
+ t_pdp *newheader = pdp_packet_header(x->x_packet1);
+ short int *newdata = (short int *)pdp_packet_data(x->x_packet1);
+ t_int px, py, pxx, pyy;
+ short int *pnY, *pnU, *pnV;
+
+ /* allocate all ressources */
+ if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize )
+ {
+ pdp_smuck_free_ressources(x);
+ x->x_vwidth = header->info.image.width;
+ x->x_vheight = header->info.image.height;
+ x->x_vsize = x->x_vwidth*x->x_vheight;
+ pdp_smuck_allocate(x);
+ post( "pdp_smuck : reallocated buffers" );
+ }
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ pnY = newdata;
+ pnV = newdata+x->x_vsize;
+ pnU = newdata+x->x_vsize+(x->x_vsize>>2);
+
+ for (py = 0; py < x->x_vheight; py++) {
+ for (px = 0; px < x->x_vwidth; px++) {
+ pyy = py + (inline_fastrand() >> x->x_n) - 2;
+ pxx = px + (inline_fastrand() >> x->x_n) - 2;
+ if (pxx > x->x_vwidth)
+ pxx = x->x_vwidth;
+ if ( pxx < 0 ) pxx = 0;
+ if (pyy > x->x_vheight)
+ pyy = x->x_vheight;
+ if ( pyy < 0 ) pyy = 0;
+ *pnY++ = *( data + pyy*x->x_vwidth + pxx );
+ if ( (px%2==0) && (py%2==0) )
+ {
+ *pnU++ = *( data + x->x_vsize + ( (pyy>>1)*(x->x_vwidth>>1) + (pxx>>2) ) );
+ *pnV++ = *( data + x->x_vsize + (x->x_vsize>>2) + ( (pyy>>1)*(x->x_vwidth>>1) + (pxx>>2) ) );
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_smuck_sendpacket(t_pdp_smuck *x)
+{
+ /* release the packet */
+ pdp_packet_mark_unused(x->x_packet0);
+ x->x_packet0 = -1;
+
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_smuck_process(t_pdp_smuck *x)
+{
+ int encoding;
+ t_pdp *header = 0;
+
+ /* check if image data packets are compatible */
+ if ( (header = pdp_packet_header(x->x_packet0))
+ && (PDP_IMAGE == header->type)){
+
+ /* pdp_smuck_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+ pdp_queue_add(x, pdp_smuck_process_yv12, pdp_smuck_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ // should write something to handle these one day
+ // but i don't use this mode
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_smuck_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_smuck_input_0(t_pdp_smuck *x, t_symbol *s, t_floatarg f)
+{
+ /* if this is a register_ro message or register_rw message, register with packet factory */
+
+ if (s== gensym("register_rw"))
+ x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("image/YCrCb/*") );
+
+ if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){
+
+ /* add the process method and callback to the process queue */
+ pdp_smuck_process(x);
+ }
+}
+
+static void pdp_smuck_free(t_pdp_smuck *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+ pdp_smuck_free_ressources(x);
+}
+
+t_class *pdp_smuck_class;
+
+void *pdp_smuck_new(void)
+{
+ int i;
+
+ t_pdp_smuck *x = (t_pdp_smuck *)pd_new(pdp_smuck_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("n"));
+
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+ x->x_packet0 = -1;
+ x->x_packet1 = -1;
+ x->x_queue_id = -1;
+
+ x->x_n = 30;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_smuck_setup(void)
+{
+// post( pdp_smuck_version );
+ pdp_smuck_class = class_new(gensym("pdp_smuck"), (t_newmethod)pdp_smuck_new,
+ (t_method)pdp_smuck_free, sizeof(t_pdp_smuck), 0, A_NULL);
+
+ class_addmethod(pdp_smuck_class, (t_method)pdp_smuck_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_smuck_class, (t_method)pdp_smuck_n, gensym("n"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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