1 files changed, 313 insertions, 0 deletions

diff --git a/pdp_opencv_morphology.c b/pdp_opencv_morphology.c
new file mode 100644
index 0000000..c86a95a
--- /dev/null
+++ b/pdp_opencv_morphology.c
@@ -0,0 +1,313 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_morphology_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int pos;
+    int element_shape;
+    int mode; //to switch between openclose or dilateerode modes
+
+    // The output and temporary images
+    IplImage* src;
+    IplImage* dst;
+
+    IplConvKernel* element;
+
+
+    
+} t_pdp_opencv_morphology;
+
+
+
+
+// callback function for open/close trackbar
+void pdp_opencv_morphology_OpenClose(t_pdp_opencv_morphology *x, int pos)   
+{
+    int n = x->pos;
+    int an = n > 0 ? n : -n;
+    x->element = cvCreateStructuringElementEx( an*2+1, an*2+1, an, an, x->element_shape, 0 );
+    if( n < 0 )
+    {
+        cvErode(x->src,x->dst,x->element,1);
+        cvDilate(x->dst,x->dst,x->element,1);
+    }
+    else
+    {
+        cvDilate(x->src,x->dst,x->element,1);
+        cvErode(x->dst,x->dst,x->element,1);
+    }
+    cvReleaseStructuringElement(&x->element);
+    //cvShowImage("Open/Close",dst);
+}   
+
+// callback function for erode/dilate trackbar
+void pdp_opencv_morphology_ErodeDilate(t_pdp_opencv_morphology *x, int pos)   
+{
+    int n = x->pos;
+    int an = n > 0 ? n : -n;
+    x->element = cvCreateStructuringElementEx( an*2+1, an*2+1, an, an, x->element_shape, 0 );
+    if( n < 0 )
+    {
+        cvErode(x->src,x->dst,x->element,1);
+    }
+    else
+    {
+        cvDilate(x->src,x->dst,x->element,1);
+    }
+    cvReleaseStructuringElement(&x->element);
+    //cvShowImage("Erode/Dilate",dst);
+}   
+
+
+static void pdp_opencv_morphology_process_rgb(t_pdp_opencv_morphology *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;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_morphology :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->src );
+    	cvReleaseImage( &x->dst );
+   
+	//Create cv_images 
+    	x->src = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    	x->dst = cvCloneImage(x->src);
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->src->imageData, data, x->x_size*3 );
+       
+        if (x->mode==1) pdp_opencv_morphology_OpenClose(x,x->pos);
+        else pdp_opencv_morphology_ErodeDilate(x,x->pos);
+	 
+
+    memcpy( newdata, x->dst->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_morphology_shape(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+        if( (int)f == 1 )
+            x->element_shape = CV_SHAPE_RECT;
+        else if( (int)f == 2 )
+            x->element_shape = CV_SHAPE_ELLIPSE;
+        else if( (int)f == 3 )
+            x->element_shape = CV_SHAPE_CROSS;
+
+}
+
+static void pdp_opencv_morphology_mode(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+    int v = (int)f;
+    if (v<0) v=0;
+    else if (v>1) v=1;
+
+    x->mode=(int)v;
+}
+
+static void pdp_opencv_morphology_pos(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+	x->pos = (int)f;
+}
+
+static void pdp_opencv_morphology_sendpacket(t_pdp_opencv_morphology *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_opencv_morphology_process(t_pdp_opencv_morphology *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_morphology_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_morphology_process_rgb, pdp_opencv_morphology_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_morphology_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_morphology_input_0(t_pdp_opencv_morphology *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("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_morphology_process(x);
+    }
+}
+
+static void pdp_opencv_morphology_free(t_pdp_opencv_morphology *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->src );
+    	cvReleaseImage( &x->dst );
+}
+
+t_class *pdp_opencv_morphology_class;
+
+
+void *pdp_opencv_morphology_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_morphology *x = (t_pdp_opencv_morphology *)pd_new(pdp_opencv_morphology_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("pos"));
+
+    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_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->element_shape = CV_SHAPE_RECT;
+    x->pos = 0;
+    x->mode = 0;
+    
+    x->element = 0;
+
+    
+    x->src = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    x->dst = cvCloneImage(x->src);
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_morphology_setup(void)
+{
+
+    post( "		pdp_opencv_morphology");
+    pdp_opencv_morphology_class = class_new(gensym("pdp_opencv_morphology"), (t_newmethod)pdp_opencv_morphology_new,
+    	(t_method)pdp_opencv_morphology_free, sizeof(t_pdp_opencv_morphology), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_pos, gensym("pos"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_mode, gensym("mode"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_shape, gensym("shape"),  A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif