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-rw-r--r--modules/pdp_cycle.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/modules/pdp_cycle.c b/modules/pdp_cycle.c
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--- /dev/null
+++ b/modules/pdp_cycle.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 a port of cycle effect from EffecTV
+ * Originally written by clifford smith <nullset@dookie.net>
+ * Pd-fication by Yves Degoyon ( ydegoyon@free.fr )
+ */
+
+
+#include "pdp.h"
+#include <math.h>
+
+#define NEWCOLOR(c,o) ((c+o)%230)
+
+static char *pdp_cycle_version = "pdp_cycle: version 0.1, port of cycle from EffecTV by clifford smith, adapted by ydegoyon@free.fr ";
+
+typedef struct pdp_cycle_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_int x_packet0;
+ t_int x_packet1;
+ t_int x_dropped;
+ t_int x_queue_id;
+
+ t_outlet *x_outlet0;
+ t_int x_vwidth;
+ t_int x_vheight;
+ t_int x_vsize;
+
+ t_int x_cycley; // flag to activate y cycling
+ t_int x_cycleu; // flag to activate u cycling
+ t_int x_cyclev; // flag to activate v cycling
+
+ t_int x_yoffset;
+ t_int x_uoffset;
+ t_int x_voffset;
+
+} t_pdp_cycle;
+
+static void pdp_cycle_cycley(t_pdp_cycle *x, t_floatarg fcycley )
+{
+ if ( ( fcycley == 0 ) || ( fcycley == 1 ) )
+ {
+ x->x_cycley = fcycley;
+ }
+}
+
+static void pdp_cycle_cycleu(t_pdp_cycle *x, t_floatarg fcycleu )
+{
+ if ( ( fcycleu == 0 ) || ( fcycleu == 1 ) )
+ {
+ x->x_cycleu = fcycleu;
+ }
+}
+
+static void pdp_cycle_cyclev(t_pdp_cycle *x, t_floatarg fcyclev )
+{
+ if ( ( fcyclev == 0 ) || ( fcyclev == 1 ) )
+ {
+ x->x_cyclev = fcyclev;
+ }
+}
+
+static void pdp_cycle_process_yv12(t_pdp_cycle *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 i;
+ t_int px, py, y, u, v;
+
+ x->x_vwidth = header->info.image.width;
+ x->x_vheight = header->info.image.height;
+ x->x_vsize = x->x_vwidth*x->x_vheight;
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ x->x_yoffset += 1;
+ x->x_uoffset += 3;
+ x->x_voffset += 7;
+
+ for(py=1; py<x->x_vheight; py++)
+ {
+ for(px=0; px<x->x_vwidth; px++)
+ {
+ if ( x->x_cycley )
+ {
+ y = *(data+py*x->x_vwidth+px)>>7;
+ *(newdata+py*x->x_vwidth+px) = NEWCOLOR(y,x->x_yoffset)<<7;
+ }
+ if ( x->x_cycleu )
+ {
+ u = ( *(data+x->x_vsize+(x->x_vsize>>2)+((py*x->x_vwidth>>2)+(px>>1))) >>8 ) + 128;
+ *(newdata+x->x_vsize+(x->x_vsize>>2)+((py*x->x_vwidth>>2)+(px>>1))) = (NEWCOLOR(u,x->x_uoffset)-128)<<8;
+ }
+ if ( x->x_cyclev )
+ {
+ v = ( *(data+x->x_vsize+((py*x->x_vwidth>>2)+(px>>1))) >>8 ) + 128;
+ *(newdata+x->x_vsize+((py*x->x_vwidth>>2)+(px>>1))) = (NEWCOLOR(v,x->x_voffset)-128)<<8;
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_cycle_sendpacket(t_pdp_cycle *x)
+{
+ /* delete source 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_cycle_process(t_pdp_cycle *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_cycle_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_cycle_process_yv12, pdp_cycle_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_cycle_process */
+ break;
+
+ }
+ }
+
+}
+
+static void pdp_cycle_input_0(t_pdp_cycle *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_cycle_process(x);
+
+ }
+
+}
+
+static void pdp_cycle_free(t_pdp_cycle *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+}
+
+t_class *pdp_cycle_class;
+
+void *pdp_cycle_new(void)
+{
+ int i;
+
+ t_pdp_cycle *x = (t_pdp_cycle *)pd_new(pdp_cycle_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cycley"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cycleu"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cyclev"));
+
+ 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_cycley = 1;
+ x->x_cycleu = 0;
+ x->x_cyclev = 0;
+
+ x->x_yoffset = 0;
+ x->x_uoffset = 0;
+ x->x_voffset = 0;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_cycle_setup(void)
+{
+// post( pdp_cycle_version );
+ pdp_cycle_class = class_new(gensym("pdp_cycle"), (t_newmethod)pdp_cycle_new,
+ (t_method)pdp_cycle_free, sizeof(t_pdp_cycle), 0, A_NULL);
+
+ class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cycley, gensym("cycley"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cycleu, gensym("cycleu"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cyclev, gensym("cyclev"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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