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-rw-r--r--modules/pdp_ocanvas.c438
1 files changed, 438 insertions, 0 deletions
diff --git a/modules/pdp_ocanvas.c b/modules/pdp_ocanvas.c
new file mode 100644
index 0000000..e06a500
--- /dev/null
+++ b/modules/pdp_ocanvas.c
@@ -0,0 +1,438 @@
+/*
+ * 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 object allowing juxtaposition of frames from two inlets
+ * Written by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+static char *pdp_ocanvas_version = "pdp_ocanvas: version 0.1, display for several video sources, written by Yves Degoyon (ydegoyon@free.fr)";
+
+#define MAX_CANVAS_INPUT 10
+
+typedef struct pdp_ocanvas_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_int x_dropped;
+ t_int x_queue_id;
+
+ t_int x_opacket;
+
+ t_int x_current;
+ t_float x_xmouse;
+ t_float x_ymouse;
+
+ t_int x_average;
+
+ t_int *x_packets;
+ t_int *x_widths;
+ t_int *x_heights;
+ t_float *x_xoffsets;
+ t_float *x_yoffsets;
+ t_int *x_sizes;
+
+ t_int x_owidth;
+ t_int x_oheight;
+ t_int x_osize;
+ t_int x_nbinputs;
+
+} t_pdp_ocanvas;
+
+static void pdp_ocanvas_process_yv12(t_pdp_ocanvas *x)
+{
+ t_int px, py, ppx, ppy, ii, nbs;
+ short int *pY, *pU, *pV;
+ short int *piY, *piU, *piV;
+ t_pdp *oheader;
+ short int *odata;
+ t_pdp *iheader;
+ short int *idata;
+
+ x->x_opacket = pdp_packet_new_image_YCrCb( x->x_owidth, x->x_oheight );
+ oheader = pdp_packet_header(x->x_opacket);
+ odata = (short int *)pdp_packet_data(x->x_opacket);
+
+ oheader->info.image.encoding = PDP_IMAGE_YV12;
+ oheader->info.image.width = x->x_owidth;
+ oheader->info.image.height = x->x_oheight;
+
+ memset( odata, 0x00, (x->x_osize + (x->x_osize>>1))<<1 );
+
+ pY = odata;
+ pV = odata+x->x_osize;
+ pU = odata+x->x_osize+(x->x_osize>>2);
+ for ( py=0; py<x->x_oheight; py++ )
+ {
+ for ( px=0; px<x->x_owidth; px++ )
+ {
+ nbs=0;
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ if ( x->x_packets[ii] != -1 )
+ {
+ if ( (px >= (int)x->x_xoffsets[ii]) && ( px < (int)x->x_xoffsets[ii] + x->x_widths[ii] )
+ && (py >= (int)x->x_yoffsets[ii]) && ( py < (int)x->x_yoffsets[ii] + x->x_heights[ii] )
+ )
+ {
+ nbs++;
+ idata = (short int *)pdp_packet_data(x->x_packets[ii]);
+ piY = idata;
+ piV = idata+x->x_sizes[ii];
+ piU = idata+x->x_sizes[ii]+(x->x_sizes[ii]>>2);
+ ppx = px-(int)x->x_xoffsets[ii];
+ ppy = py-(int)x->x_yoffsets[ii];
+ *(pY+py*x->x_owidth+px) += *(piY+ppy*x->x_widths[ii]+ppx);
+ if ( (px%2==0) && (py%2==0) )
+ {
+ *(pU+(py>>1)*(x->x_owidth>>1)+(px>>1)) +=
+ *(piU+(ppy>>1)*(x->x_widths[ii]>>1)+(ppx>>1));
+ *(pV+(py>>1)*(x->x_owidth>>1)+(px>>1)) +=
+ *(piV+(ppy>>1)*(x->x_widths[ii]>>1)+(ppx>>1));
+ }
+ }
+ }
+ }
+ if ( ( nbs != 0 ) && x->x_average )
+ {
+ *(pY+py*x->x_owidth+px) /= nbs;
+ if ( (px%2==0) && (py%2==0) )
+ {
+ *(pU+(py>>1)*(x->x_owidth>>1)+(px>>1)) /= nbs;
+ *(pV+(py>>1)*(x->x_owidth>>1)+(px>>1)) /= nbs;
+ }
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_ocanvas_sendpacket(t_pdp_ocanvas *x)
+{
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_opacket);
+}
+
+static void pdp_ocanvas_process(t_pdp_ocanvas *x, t_int ni)
+{
+ int encoding;
+ t_pdp *header = 0;
+
+ /* check if image data packets are compatible */
+ if ( (header = pdp_packet_header(x->x_packets[ni]))
+ && (PDP_IMAGE == header->type)){
+
+ /* pdp_ocanvas_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packets[ni])->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ pdp_queue_add(x, pdp_ocanvas_process_yv12, pdp_ocanvas_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_ocanvas_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_ocanvas_offset(t_pdp_ocanvas *x, t_floatarg ni, t_floatarg xoffset, t_floatarg yoffset)
+{
+ if ( ( ni < 1 ) || ( ni > x->x_nbinputs ) )
+ {
+ post( "pdp_ocanvas : offset : wrong source : %d : must be between 1 and %d", ni, x->x_nbinputs );
+ return;
+ }
+ x->x_xoffsets[(int)ni-1] = xoffset;
+ x->x_yoffsets[(int)ni-1] = yoffset;
+}
+
+static void pdp_ocanvas_select(t_pdp_ocanvas *x, t_floatarg X, t_floatarg Y)
+{
+ t_int ii;
+
+ x->x_current = -1;
+ X = X*x->x_owidth;
+ Y = Y*x->x_oheight;
+ // post( "pdp_ocanvas : select %f %f", X, Y );
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ if ( x->x_packets[ii] != -1 )
+ {
+ if ( (X >= x->x_xoffsets[ii]) && ( X < x->x_xoffsets[ii] + x->x_widths[ii] )
+ && (Y >= x->x_yoffsets[ii]) && ( Y < x->x_yoffsets[ii] + x->x_heights[ii] )
+ )
+ {
+ x->x_current = ii;
+ x->x_xmouse = X;
+ x->x_ymouse = Y;
+ }
+ }
+ }
+}
+
+static void pdp_ocanvas_drag(t_pdp_ocanvas *x, t_floatarg X, t_floatarg Y)
+{
+ X = X*x->x_owidth;
+ Y = Y*x->x_oheight;
+ // post( "pdp_ocanvas : drag %f %f", X, Y );
+ if ( x->x_current != -1 )
+ {
+ x->x_xoffsets[ x->x_current ] += (X-x->x_xmouse);
+ x->x_yoffsets[ x->x_current ] += (Y-x->x_ymouse);
+ x->x_xmouse = X;
+ x->x_ymouse = Y;
+ }
+}
+
+static void pdp_ocanvas_unselect(t_pdp_ocanvas *x)
+{
+ x->x_current = -1;
+}
+
+static void pdp_ocanvas_average(t_pdp_ocanvas *x, t_floatarg bvalue)
+{
+ if ( ( bvalue == 0.0 ) || ( bvalue == 1.0 ) )
+ {
+ x->x_average = (int) bvalue;
+ }
+}
+
+static void pdp_ocanvas_input(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f, t_int ni)
+{
+ t_pdp *header;
+ short int *data;
+
+ /* if this is a register_ro message or register_rw message, register with packet factory */
+
+ if (s== gensym("register_rw"))
+ {
+ /* release the packet */
+ if ( x->x_packets[ni] != -1 )
+ {
+ pdp_packet_mark_unused(x->x_packets[ni]);
+ x->x_packets[ni] = -1;
+ }
+ x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packets[ni], (int)f, pdp_gensym("image/YCrCb/*") );
+ if ( x->x_packets[ni] != -1 )
+ {
+ header = pdp_packet_header(x->x_packets[ni]);
+ x->x_widths[ni] = header->info.image.width;
+ x->x_heights[ni] = header->info.image.height;
+ x->x_sizes[ni] = x->x_widths[ni]*x->x_heights[ni];
+ }
+ }
+
+ if ((s == gensym("process")) && (-1 != x->x_packets[ni]) && (!x->x_dropped))
+ {
+ /* add the process method and callback to the process queue */
+ pdp_ocanvas_process(x, ni);
+ }
+}
+
+static void pdp_ocanvas_input0(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 0);
+}
+
+static void pdp_ocanvas_input1(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 1);
+}
+
+static void pdp_ocanvas_input2(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 2);
+}
+
+static void pdp_ocanvas_input3(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 3);
+}
+
+static void pdp_ocanvas_input4(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 4);
+}
+
+static void pdp_ocanvas_input5(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 5);
+}
+
+static void pdp_ocanvas_input6(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 6);
+}
+
+static void pdp_ocanvas_input7(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 7);
+}
+
+static void pdp_ocanvas_input8(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 8);
+}
+
+static void pdp_ocanvas_input9(t_pdp_ocanvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_ocanvas_input(x, s, f, 9);
+}
+
+static void pdp_ocanvas_free(t_pdp_ocanvas *x)
+{
+ t_int ii;
+
+ pdp_queue_finish(x->x_queue_id);
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ pdp_packet_mark_unused(x->x_packets[ii]);
+ }
+ pdp_packet_mark_unused(x->x_opacket);
+ if ( x->x_packets ) freebytes( x->x_packets, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_widths ) freebytes( x->x_widths, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_heights ) freebytes( x->x_heights, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_sizes ) freebytes( x->x_sizes, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_xoffsets ) freebytes( x->x_xoffsets, x->x_nbinputs*sizeof(t_float) );
+ if ( x->x_yoffsets ) freebytes( x->x_yoffsets, x->x_nbinputs*sizeof(t_float) );
+}
+
+t_class *pdp_ocanvas_class;
+
+void *pdp_ocanvas_new(t_symbol *s, int argc, t_atom *argv)
+{
+ t_pdp_ocanvas *x = (t_pdp_ocanvas *)pd_new(pdp_ocanvas_class);
+ t_int ii;
+ char *imes[32];
+
+ if ( argc != 3 )
+ {
+ post( "pdp_ocanvas : wrong constructor : pdp_ocanvas <width> <height> <nb inputs> (argc=%d)", argc);
+ return NULL;
+ }
+ if ( argv[0].a_type != A_FLOAT || argv[1].a_type != A_FLOAT ||
+ argv[2].a_type != A_FLOAT )
+ {
+ post( "pdp_ocanvas : wrong constructor : pdp_ocanvas <width> <height> <nb inputs>");
+ return NULL;
+ }
+
+ x->x_owidth = ( (int) argv[0].a_w.w_float / 8 ) * 8; // round to a multiple of 8
+ x->x_oheight = ( (int) argv[1].a_w.w_float / 8 ) * 8; // round to a multiple of 8
+ x->x_osize = x->x_owidth*x->x_oheight;
+ x->x_nbinputs = (int) argv[2].a_w.w_float;
+
+ if ( x->x_owidth < 0 )
+ {
+ post( "pdp_ocanvas : wrong width : %d", x->x_owidth);
+ return NULL;
+ }
+ if ( x->x_oheight < 0 )
+ {
+ post( "pdp_ocanvas : wrong height : %d", x->x_oheight);
+ return NULL;
+ }
+ if ( x->x_nbinputs < 0 )
+ {
+ post( "pdp_ocanvas : wrong number of inputs : %d", x->x_nbinputs);
+ return NULL;
+ }
+ if ( x->x_nbinputs > MAX_CANVAS_INPUT )
+ {
+ post( "pdp_ocanvas : number of inputs is too high : %d : only %d supported",
+ x->x_nbinputs, MAX_CANVAS_INPUT);
+ return NULL;
+ }
+
+ post ( "pdp_ocanvas : new %dx%d canvas with %d inputs", x->x_owidth, x->x_oheight, x->x_nbinputs );
+
+ x->x_packets = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_widths = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_heights = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_sizes = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_xoffsets = ( t_float* ) getbytes( x->x_nbinputs*sizeof(t_float) );
+ x->x_yoffsets = ( t_float* ) getbytes( x->x_nbinputs*sizeof(t_float) );
+
+ x->x_opacket = pdp_packet_new_image_YCrCb( x->x_owidth, x->x_oheight );
+
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ sprintf( (char*)imes, "pdp%d", ii );
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym((char*)imes) );
+ x->x_packets[ii] = -1;
+ x->x_xoffsets[ii] = 0.;
+ x->x_yoffsets[ii] = 0.;
+ }
+ x->x_current = -1;
+ x->x_average = 0;
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_ocanvas_setup(void)
+{
+ char *imes[32];
+
+ // post( pdp_ocanvas_version );
+ pdp_ocanvas_class = class_new(gensym("pdp_ocanvas"), (t_newmethod)pdp_ocanvas_new,
+ (t_method)pdp_ocanvas_free, sizeof(t_pdp_ocanvas), 0, A_GIMME, A_NULL);
+ class_sethelpsymbol( pdp_ocanvas_class, gensym("pdp_ocanvas.pd") );
+
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input0, gensym("pdp0"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input2, gensym("pdp2"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input3, gensym("pdp3"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input4, gensym("pdp4"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input5, gensym("pdp5"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input6, gensym("pdp6"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input7, gensym("pdp7"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input8, gensym("pdp8"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_input9, gensym("pdp9"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_offset, gensym("offset"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_select, gensym("select"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_drag, gensym("drag"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_unselect, gensym("unselect"), A_NULL);
+ class_addmethod(pdp_ocanvas_class, (t_method)pdp_ocanvas_average, gensym("average"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-27 10:48:33 +0000