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-rw-r--r--modules/pdp_baltan.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/modules/pdp_baltan.c b/modules/pdp_baltan.c
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+++ b/modules/pdp_baltan.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 adaptation of baltan effect from freej
+ * Originally written by Fukuchi Kentarou
+ * Adapted by Yves Degoyon
+ * Do not expect it to behave like effectv : well, it does things ....
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+#define PLANES 32
+
+#define STRIDE 8
+
+typedef struct pdp_baltan_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_planebuf;
+ t_int x_plane;
+ t_int x_pixels;
+ t_int x_dfts; /* the factor */
+
+} t_pdp_baltan;
+
+static void pdp_baltan_process_yv12(t_pdp_baltan *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);
+
+ unsigned int w = header->info.image.width;
+ unsigned int h = header->info.image.height;
+
+ unsigned int size = w*h;
+ unsigned int totalnbpixels = size;
+ unsigned int u_offset = size;
+ unsigned int v_offset = size + (size>>2);
+ unsigned int totnbpixels = size + (size>>1);
+
+ t_int i, cf;
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = w;
+ newheader->info.image.height = h;
+
+ /* allocate buffers if necessary */
+ if ( ( x->x_planebuf == NULL ) || ( (int)size != x->x_pixels ) )
+ {
+ if ( x->x_planebuf ) freebytes( x->x_planebuf, x->x_pixels*PLANES*sizeof(t_int) );
+
+ x->x_pixels = size;
+ x->x_planebuf = (t_int*)getbytes(x->x_pixels*PLANES*sizeof(t_int));
+ post("pdp_baltan : allocated plane buffer (size=%d)", x->x_pixels*PLANES*sizeof(t_int) );
+ bzero(x->x_planebuf, x->x_pixels*PLANES*sizeof(t_int));
+ x->x_plane = 0;
+ if ( !x->x_planebuf )
+ {
+ post( "pdp_baltan : serious error : unable to allocate buffers " ) ;
+ return;
+ }
+ }
+
+ /* process data packet */
+ for(i=0; i<x->x_pixels; i++)
+ {
+ *(x->x_planebuf+x->x_plane*x->x_pixels+i) = (data[i] & x->x_dfts)>>2;
+ }
+
+ cf = x->x_plane & (STRIDE-1);
+
+ for(i=0; i<x->x_pixels; i++) {
+ newdata[i] = *(x->x_planebuf+cf*x->x_pixels+i)
+ + *(x->x_planebuf+((cf+STRIDE)*x->x_pixels)+i)
+ + *(x->x_planebuf+((cf+2*STRIDE)*x->x_pixels)+i)
+ + *(x->x_planebuf+((cf+3*STRIDE)*x->x_pixels)+i);
+ *(x->x_planebuf+x->x_plane*x->x_pixels+i) = (newdata[i]&x->x_dfts)>>2;
+ }
+
+ x->x_plane++;
+ x->x_plane = x->x_plane & (PLANES-1);
+
+ /* leave the colors unchanged */
+ for( i=size; i<(int)totnbpixels; i++)
+ {
+ newdata[i] = data[i];
+ }
+
+ return;
+}
+
+static void pdp_baltan_sendpacket(t_pdp_baltan *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_baltan_process(t_pdp_baltan *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_baltan_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_baltan_process_yv12, pdp_baltan_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ // pdp_baltan_process_packet(x);
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_baltan_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_baltan_input_0(t_pdp_baltan *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_baltan_process(x);
+
+ }
+}
+
+static void pdp_baltan_dfts(t_pdp_baltan *x, t_floatarg fdfts )
+{
+ x->x_dfts = (t_int)fdfts;
+}
+
+static void pdp_baltan_free(t_pdp_baltan *x)
+{
+ if ( x->x_planebuf ) freebytes( x->x_planebuf, x->x_pixels*PLANES*sizeof(t_int) );
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+}
+
+t_class *pdp_baltan_class;
+
+void *pdp_baltan_new(void)
+{
+ int i;
+
+ t_pdp_baltan *x = (t_pdp_baltan *)pd_new(pdp_baltan_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("dfts"));
+
+ 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_planebuf = NULL;
+ x->x_pixels = 0;
+ x->x_dfts = 0xfcfcfc;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_baltan_setup(void)
+{
+
+
+ pdp_baltan_class = class_new(gensym("pdp_baltan"), (t_newmethod)pdp_baltan_new,
+ (t_method)pdp_baltan_free, sizeof(t_pdp_baltan), 0, A_NULL);
+
+ class_addmethod(pdp_baltan_class, (t_method)pdp_baltan_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_baltan_class, (t_method)pdp_baltan_dfts, gensym("dfts"), A_DEFFLOAT, A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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