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-rw-r--r--modules/pdp_juxta.c319
1 files changed, 319 insertions, 0 deletions
diff --git a/modules/pdp_juxta.c b/modules/pdp_juxta.c
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+++ b/modules/pdp_juxta.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 object allowing juxtaposition of frames from two inlets
+ * Written by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+static char *pdp_juxta_version = "pdp_juxta: version 0.1, frames juxtaposition, written by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_juxta_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_int x_packet0;
+ t_int x_packet1;
+ t_int x_packet;
+ t_int x_dropped;
+ t_int x_queue_id;
+
+ t_int x_vwidth0;
+ t_int x_vheight0;
+ t_int x_vsize0;
+
+ t_int x_vwidth1;
+ t_int x_vheight1;
+ t_int x_vsize1;
+
+ t_int x_vwidth;
+ t_int x_vheight;
+ t_int x_vsize;
+
+} t_pdp_juxta;
+
+static void pdp_juxta_process_yv12(t_pdp_juxta *x)
+{
+ t_pdp *header0 = pdp_packet_header(x->x_packet0);
+ short int *data0 = (short int *)pdp_packet_data(x->x_packet0);
+ t_pdp *header1 = pdp_packet_header(x->x_packet1);
+ short int *data1 = (short int *)pdp_packet_data(x->x_packet1);
+ t_pdp *header;
+ short int *data;
+ int i;
+ short int *poY, *poV, *poU, *p0Y, *p0V, *p0U, *p1Y, *p1V, *p1U;
+
+ int px, py;
+
+ if ( header0 )
+ {
+ x->x_vwidth0 = header0->info.image.width;
+ x->x_vheight0 = header0->info.image.height;
+ x->x_vsize0 = x->x_vwidth0*x->x_vheight0;
+ }
+ else
+ {
+ x->x_vwidth0 = x->x_vheight0 = x->x_vsize0 = 0;
+ }
+
+ if ( header1 )
+ {
+ x->x_vwidth1 = header1->info.image.width;
+ x->x_vheight1 = header1->info.image.height;
+ x->x_vsize1 = x->x_vwidth1*x->x_vheight1;
+ }
+ else
+ {
+ x->x_vwidth1 = x->x_vheight1 = x->x_vsize1 = 0;
+ }
+
+ x->x_vwidth = x->x_vwidth0 + x->x_vwidth1;
+ if ( x->x_vheight0 > x->x_vheight1 )
+ {
+ x->x_vheight = x->x_vheight0;
+ }
+ else
+ {
+ x->x_vheight = x->x_vheight1;
+ }
+ x->x_vsize = x->x_vwidth*x->x_vheight;
+ // post( "pdp_juxta : resulting frame : %dx%d", x->x_vwidth, x->x_vheight );
+
+ x->x_packet = pdp_packet_new_image_YCrCb( x->x_vwidth, x->x_vheight );
+
+ header = pdp_packet_header(x->x_packet);
+ data = (short int *)pdp_packet_data(x->x_packet);
+
+ header->info.image.encoding = PDP_IMAGE_YV12;
+ header->info.image.width = x->x_vwidth;
+ header->info.image.height = x->x_vheight;
+
+ poY = data;
+ poV = data+x->x_vsize;
+ poU = data+x->x_vsize+(x->x_vsize>>2);
+ p0Y = data0;
+ p0V = data0+x->x_vsize0;
+ p0U = data0+x->x_vsize0+(x->x_vsize0>>2);
+ p1Y = data1;
+ p1V = data1+x->x_vsize1;
+ p1U = data1+x->x_vsize1+(x->x_vsize1>>2);
+ for ( py=0; py<x->x_vheight; py++ )
+ {
+ for ( px=0; px<x->x_vwidth; px++ )
+ {
+ if ( px < x->x_vwidth0 && p0Y )
+ {
+ *poY = *p0Y;
+ *poV = *p0V;
+ *poU = *p0U;
+ poY++;p0Y++;
+ if ( (px%2==0) && (py%2==0) )
+ {
+ poU++; poV++;
+ p0U++; p0V++;
+ }
+ }
+ if ( px >= x->x_vwidth0 && p1Y )
+ {
+ *poY = *p1Y;
+ *poV = *p1V;
+ *poU = *p1U;
+ poY++;p1Y++;
+ if ( (px%2==0) && (py%2==0) )
+ {
+ poU++; poV++;
+ p1U++; p1V++;
+ }
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_juxta_sendpacket0(t_pdp_juxta *x)
+{
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet);
+}
+
+static void pdp_juxta_sendpacket1(t_pdp_juxta *x)
+{
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet);
+}
+
+static void pdp_juxta_process0(t_pdp_juxta *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_juxta_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ pdp_queue_add(x, pdp_juxta_process_yv12, pdp_juxta_sendpacket0, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_juxta_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_juxta_process1(t_pdp_juxta *x)
+{
+ int encoding;
+ t_pdp *header = 0;
+
+ /* check if image data packets are compatible */
+ if ( (header = pdp_packet_header(x->x_packet1))
+ && (PDP_IMAGE == header->type)){
+
+ /* pdp_juxta_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packet1)->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ pdp_queue_add(x, pdp_juxta_process_yv12, pdp_juxta_sendpacket1, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_juxta_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_juxta_input_0(t_pdp_juxta *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"))
+ {
+ /* release the packet */
+ if ( x->x_packet0 != -1 )
+ {
+ pdp_packet_mark_unused(x->x_packet0);
+ x->x_packet0 = -1;
+ }
+ 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_juxta_process0(x);
+
+ }
+}
+
+static void pdp_juxta_input_1(t_pdp_juxta *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"))
+ {
+ /* release the packet */
+ if ( x->x_packet1 != -1 )
+ {
+ pdp_packet_mark_unused(x->x_packet1);
+ x->x_packet1 = -1;
+ }
+ x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet1, (int)f, pdp_gensym("image/YCrCb/*") );
+ }
+
+ if ((s == gensym("process")) && (-1 != x->x_packet1) && (!x->x_dropped)){
+
+ /* add the process method and callback to the process queue */
+ pdp_juxta_process1(x);
+
+ }
+}
+
+static void pdp_juxta_free(t_pdp_juxta *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+ pdp_packet_mark_unused(x->x_packet1);
+}
+
+t_class *pdp_juxta_class;
+
+void *pdp_juxta_new(void)
+{
+ int i;
+
+ t_pdp_juxta *x = (t_pdp_juxta *)pd_new(pdp_juxta_class);
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp2"));
+
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+
+ x->x_packet0 = -1;
+ x->x_packet1 = -1;
+ x->x_packet = -1;
+ x->x_queue_id = -1;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_juxta_setup(void)
+{
+ post( pdp_juxta_version );
+ pdp_juxta_class = class_new(gensym("pdp_juxta"), (t_newmethod)pdp_juxta_new,
+ (t_method)pdp_juxta_free, sizeof(t_pdp_juxta), CLASS_NOINLET, A_NULL);
+
+ class_addmethod(pdp_juxta_class, (t_method)pdp_juxta_input_0, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_juxta_class, (t_method)pdp_juxta_input_1, gensym("pdp2"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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