aboutsummaryrefslogtreecommitdiff
path: root/modules/pdp_nervous.c
diff options
context:
space:
mode:
Diffstat (limited to 'modules/pdp_nervous.c')
-rw-r--r--modules/pdp_nervous.c283
1 files changed, 283 insertions, 0 deletions
diff --git a/modules/pdp_nervous.c b/modules/pdp_nervous.c
new file mode 100644
index 0000000..df76821
--- /dev/null
+++ b/modules/pdp_nervous.c
@@ -0,0 +1,283 @@
+/*
+ * 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 warp effect from effectv
+ * Copyright (C) 2002 TANNENBAUM Edo
+ * Pd-fication by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+#define DEFAULT_PLANES 32
+
+static int fastrand_val=0;
+#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345)
+
+
+static char *pdp_nervous_version = "pdp_nervous: version 0.1, port of nervous from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)";
+
+static char* the_wave_table = NULL;
+
+typedef struct pdp_nervous_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_mode;
+ short int *x_buffer;
+ short int **x_planetable;
+ t_int x_planes;
+ t_int x_plane;
+ t_int x_stock;
+ t_int x_timer;
+ t_int x_stride;
+ t_int x_readplane;
+
+} t_pdp_nervous;
+
+static void pdp_nervous_mode(t_pdp_nervous *x, t_floatarg fmode )
+{
+ if ( ( fmode == 0 ) || ( fmode == 1 ) )
+ {
+ x->x_mode = (int)fmode;
+ }
+}
+
+static void pdp_nervous_free_ressources(t_pdp_nervous *x)
+{
+ if ( x->x_buffer ) free ( x->x_buffer );
+ if ( x->x_planetable ) free ( x->x_planetable );
+}
+
+static void pdp_nervous_allocate(t_pdp_nervous *x)
+{
+ int i;
+
+ // allocate space for the frame buffers. A lot of memory is required -
+ // with the default settings, it totals nearly 5 megs.
+ x->x_buffer = (short int *) getbytes ( ( ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ) * 2 * x->x_planes);
+ x->x_planetable = (short int**) getbytes ( x->x_planes*sizeof(short int*) );
+
+ // set up the array of pointers to the frame buffers
+ for(i=0;i<x->x_planes;i++)
+ {
+ x->x_planetable[i] = &x->x_buffer[ ( ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ) * i];
+ }
+
+ if ( !x->x_buffer )
+ {
+ post( "pdp_nervous : severe error : cannot allocate buffers !!! ");
+ return;
+ }
+}
+
+static void pdp_nervous_planes(t_pdp_nervous *x, t_floatarg fplanes )
+{
+ if ( ( fplanes > 1 ) && ( fplanes < 100 ) )
+ {
+ pdp_nervous_free_ressources(x);
+ x->x_planes = (int)fplanes;
+ x->x_plane = x->x_planes-1;
+ x->x_readplane = 0;
+ x->x_stock = 0;
+ pdp_nervous_allocate(x);
+ }
+}
+
+static void pdp_nervous_process_yv12(t_pdp_nervous *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);
+ int i;
+
+ /* allocate all ressources */
+ if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize )
+ {
+ pdp_nervous_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;
+ x->x_plane = x->x_planes-1;
+ pdp_nervous_allocate(x);
+ post( "pdp_nervous : reallocated buffers" );
+ }
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ memcpy(x->x_planetable[x->x_plane], data, ( x->x_vsize + (x->x_vsize>>1) ) << 1 );
+ if(x->x_stock < x->x_planes) {
+ x->x_stock++;
+ }
+
+ if(x->x_mode)
+ {
+ if(x->x_timer)
+ {
+ x->x_readplane = x->x_readplane + x->x_stride;
+ while(x->x_readplane < 0) x->x_readplane += x->x_stock;
+ while(x->x_readplane >= x->x_stock) x->x_readplane -= x->x_stock;
+ x->x_timer--;
+ }
+ else
+ {
+ x->x_readplane = inline_fastrand() % x->x_stock;
+ if ( x->x_readplane < 0 ) x->x_readplane = 0;
+ x->x_stride = inline_fastrand() % 5 - 2;
+ if(x->x_stride >= 0) x->x_stride++;
+ x->x_timer = inline_fastrand() % 6 + 2;
+ }
+ }
+ else
+ {
+ if(x->x_stock > 0) x->x_readplane = ( inline_fastrand() % x->x_stock );
+ if ( x->x_readplane < 0 ) x->x_readplane = 0;
+ }
+ memcpy(newdata, x->x_planetable[x->x_readplane], ( x->x_vsize + ( x->x_vsize>>1) ) << 1 );
+ x->x_plane = ( x->x_plane + 1 ) % x->x_planes;
+
+ return;
+}
+
+static void pdp_nervous_sendpacket(t_pdp_nervous *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_nervous_process(t_pdp_nervous *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_nervous_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_nervous_process_yv12, pdp_nervous_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_nervous_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_nervous_input_0(t_pdp_nervous *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_nervous_process(x);
+ }
+}
+
+static void pdp_nervous_free(t_pdp_nervous *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+ pdp_nervous_free_ressources(x);
+}
+
+t_class *pdp_nervous_class;
+
+void *pdp_nervous_new(void)
+{
+ int i;
+
+ t_pdp_nervous *x = (t_pdp_nervous *)pd_new(pdp_nervous_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("planes"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("mode"));
+
+ 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_mode = 0;
+ x->x_buffer = NULL;
+ x->x_planes = DEFAULT_PLANES;
+ x->x_readplane = 0;
+ x->x_stock = 0;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_nervous_setup(void)
+{
+// post( pdp_nervous_version );
+ pdp_nervous_class = class_new(gensym("pdp_nervous"), (t_newmethod)pdp_nervous_new,
+ (t_method)pdp_nervous_free, sizeof(t_pdp_nervous), 0, A_NULL);
+
+ class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_mode, gensym("mode"), A_FLOAT, A_NULL);
+ class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_planes, gensym("planes"), A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-29 10:26:48 +0000