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-rw-r--r--modules/pdp_mapper.c280
1 files changed, 280 insertions, 0 deletions
diff --git a/modules/pdp_mapper.c b/modules/pdp_mapper.c
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+++ b/modules/pdp_mapper.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 pixels mapper enabling to do some cut and paste
+ * Written by Yves Degoyon
+ */
+
+#include "pdp.h"
+#include <math.h>
+
+static char *pdp_mapper_version = "pdp_mapper: version 0.1, a pixels mapper, written by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_mapper_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;
+ unsigned int x_encoding;
+ t_int *x_pixelmap;
+
+} t_pdp_mapper;
+
+static void pdp_mapper_copy(t_pdp_mapper *x, t_floatarg fromX, t_floatarg fromY, t_floatarg toX, t_floatarg toY)
+{
+ if ( ( fromX >= 0 ) && ( fromX < x->x_vwidth ) &&
+ ( toX >= 0 ) && ( toX < x->x_vwidth ) &&
+ ( fromY >= 0 ) && ( fromY < x->x_vheight ) &&
+ ( toY >= 0 ) && ( toY < x->x_vheight ) )
+ {
+ x->x_pixelmap[ (t_int)toY*x->x_vwidth+(t_int)toX ] = x->x_pixelmap[ (t_int)fromY*x->x_vwidth+(t_int)fromX ];
+ }
+}
+
+static void pdp_mapper_reset(t_pdp_mapper *x)
+{
+ t_int px, py;
+
+ if ( x->x_vsize > 0 )
+ {
+ for ( py=0; py<x->x_vheight; py++ )
+ {
+ for ( px=0; px<x->x_vwidth; px++ )
+ {
+ x->x_pixelmap[py*x->x_vwidth+px] = py*x->x_vwidth+px;
+ }
+ }
+ }
+}
+
+static void pdp_mapper_swap(t_pdp_mapper *x, t_floatarg fromX, t_floatarg fromY, t_floatarg toX, t_floatarg toY)
+{
+
+ t_int tval;
+
+ if ( ( fromX >= 0 ) && ( fromX < x->x_vwidth ) &&
+ ( toX >= 0 ) && ( toX < x->x_vwidth ) &&
+ ( fromY >= 0 ) && ( fromY < x->x_vheight ) &&
+ ( toY >= 0 ) && ( toY < x->x_vheight ) )
+ {
+ tval = x->x_pixelmap[ (t_int)toY*x->x_vwidth+(t_int)toX ];
+ x->x_pixelmap[ (t_int)toY*x->x_vwidth+(t_int)toX ] = x->x_pixelmap[ (t_int)fromY*x->x_vwidth+(t_int)fromX ];
+ x->x_pixelmap[ (t_int)fromY*x->x_vwidth+(t_int)fromX ] = tval;
+ }
+}
+
+static void pdp_mapper_allocate(t_pdp_mapper *x, t_int newsize)
+{
+ int i, px, py;
+
+ if ( x->x_pixelmap != NULL )
+ {
+ freebytes( x->x_pixelmap, x->x_vsize*sizeof(t_int) );
+ }
+
+ x->x_vsize = newsize;
+ x->x_pixelmap = (t_int*) getbytes( x->x_vsize*sizeof(t_int) );
+
+ for ( py=0; py<x->x_vheight; py++ )
+ {
+ for ( px=0; px<x->x_vwidth; px++ )
+ {
+ x->x_pixelmap[py*x->x_vwidth+px] = py*x->x_vwidth+px;
+ }
+ }
+}
+
+static void pdp_mapper_process_yv12(t_pdp_mapper *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;
+
+ t_int px, py, ppx, ppy, offset;
+ short int *sy, *su, *sv, t;
+ t_int *spy;
+ short int *sny, *snu, *snv;
+
+ /* allocate all ressources */
+ if ( ((t_int)header->info.image.width != x->x_vwidth ) ||
+ ((t_int)header->info.image.height != x->x_vheight ) )
+ {
+ x->x_vwidth = header->info.image.width;
+ x->x_vheight = header->info.image.height;
+ post( "pdp_mapper : reallocating buffers" );
+ pdp_mapper_allocate(x, header->info.image.width*header->info.image.height );
+ }
+
+ x->x_encoding = header->info.image.encoding;
+
+ newheader->info.image.encoding = x->x_encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ /* copy images if necessary */
+ // memcpy( newdata, data, (( x->x_vsize + (x->x_vsize>>1))<<1));
+
+ sy = data;
+ su = (data+x->x_vsize);
+ sv = (data+x->x_vsize+(x->x_vsize>>2));
+ spy = x->x_pixelmap;
+ sny = newdata;
+ snu = (newdata+x->x_vsize);
+ snv = (newdata+x->x_vsize+(x->x_vsize>>2));
+
+ for(py=1; py<x->x_vheight; py++)
+ {
+ for(px=0; px<x->x_vwidth; px++)
+ {
+ ppy = (*(spy)/x->x_vwidth);
+ ppx = (*(spy)%x->x_vwidth);
+ *(sny) = *(sy+ppy*x->x_vwidth+ppx);
+ *(snu) = *(su+(ppy>>1)*(x->x_vwidth>>1)+(ppx>>1));
+ *(snv) = *(sv+(ppy>>1)*(x->x_vwidth>>1)+(ppx>>1));
+ sny++; spy++;
+ if ( ( px%2 == 0 ) && ( py%2 == 0 ) )
+ {
+ snu++; snv++;
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_mapper_sendpacket(t_pdp_mapper *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_mapper_process(t_pdp_mapper *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_mapper_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_mapper_process_yv12, pdp_mapper_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ // pdp_mapper_process_packet(x);
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_mapper_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_mapper_input_0(t_pdp_mapper *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_mapper_process(x);
+ }
+}
+
+static void pdp_mapper_free(t_pdp_mapper *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+
+ if ( x->x_pixelmap ) freebytes( x->x_pixelmap, x->x_vsize*sizeof(t_int) );
+
+}
+
+t_class *pdp_mapper_class;
+
+void *pdp_mapper_new(void)
+{
+ int i;
+
+ t_pdp_mapper *x = (t_pdp_mapper *)pd_new(pdp_mapper_class);
+
+ 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_vsize = -1;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_mapper_setup(void)
+{
+// post( pdp_mapper_version );
+ pdp_mapper_class = class_new(gensym("pdp_mapper"), (t_newmethod)pdp_mapper_new,
+ (t_method)pdp_mapper_free, sizeof(t_pdp_mapper), 0, A_NULL);
+
+ class_addmethod(pdp_mapper_class, (t_method)pdp_mapper_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mapper_class, (t_method)pdp_mapper_copy, gensym("copy"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mapper_class, (t_method)pdp_mapper_swap, gensym("swap"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mapper_class, (t_method)pdp_mapper_reset, gensym("reset"), A_NULL);
+ class_sethelpsymbol( pdp_mapper_class, gensym("pdp_mapper.pd") );
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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