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authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2003-08-11 04:26:00 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2003-08-11 04:26:00 +0000
commitc5e843b82205c04c618a423d3bb223f1f630b7a1 (patch)
tree47eb18ea910be2d9735290aef960fd458b46d29c /modules/pdp_vertigo.c
added sources from pidip-0.12.4svn2git-root
svn path=/trunk/externals/pidip/; revision=837
Diffstat (limited to 'modules/pdp_vertigo.c')
-rw-r--r--modules/pdp_vertigo.c349
1 files changed, 349 insertions, 0 deletions
diff --git a/modules/pdp_vertigo.c b/modules/pdp_vertigo.c
new file mode 100644
index 0000000..b6f4e37
--- /dev/null
+++ b/modules/pdp_vertigo.c
@@ -0,0 +1,349 @@
+/*
+ * 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 lens effect from effectv
+ * Originally written by Fukuchi Kentaro & others
+ * Pd-fication by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+static char *pdp_vertigo_version = "pdp_vertigo: version 0.1, port of vertigo from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_vertigo_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;
+ short int *x_buffer;
+ short int *x_current_buffer;
+ short int *x_alt_buffer;
+ t_int x_dx;
+ t_int x_dy;
+ t_int x_sx;
+ t_int x_sy;
+ double x_phase;
+ double x_phase_increment;
+ double x_zoomrate;
+
+
+} t_pdp_vertigo;
+
+static void pdp_vertigo_increment(t_pdp_vertigo *x, t_floatarg fincrement )
+{
+ x->x_phase_increment = fincrement;
+}
+
+static void pdp_vertigo_zoomrate(t_pdp_vertigo *x, t_floatarg fzoomrate )
+{
+ x->x_zoomrate = (int)fzoomrate;
+}
+
+static void pdp_vertigo_allocate(t_pdp_vertigo *x, t_floatarg fnewsize )
+{
+ t_int nsize = (int) fnewsize;
+
+ if ( x->x_buffer ) freebytes( x->x_buffer, 2*((x->x_vsize + (x->x_vsize>>1))<<1) );
+ x->x_buffer = (short int *) getbytes( 2*(( nsize + (nsize>>1))<<1) );
+ if ( x->x_buffer )
+ {
+ bzero( x->x_buffer, 2*((nsize + (nsize>>1))<<1) );
+ x->x_current_buffer = x->x_buffer;
+ x->x_alt_buffer = x->x_buffer + (nsize + (nsize>>1));
+ }
+ x->x_phase = 0;
+}
+
+static void pdp_vertigo_set_params(t_pdp_vertigo *x)
+{
+ double vx, vy;
+ double t;
+ double X, Y;
+ double dizz;
+
+ dizz = sin(x->x_phase) * 10 + sin(x->x_phase*1.9+5) * 5;
+
+ X = x->x_vwidth / 2;
+ Y = x->x_vheight / 2;
+ t = (X*X + Y*Y) * x->x_zoomrate;
+ if( x->x_vwidth > x->x_vheight )
+ {
+ if(dizz >= 0)
+ {
+ if(dizz > X) dizz = X;
+ vx = (X*(X-dizz) + Y*Y) / t;
+ }
+ else
+ {
+ if(dizz < -X) dizz = -X;
+ vx = (X*(X+dizz) + Y*Y) / t;
+ }
+ vy = (dizz*Y) / t;
+ }
+ else
+ {
+ if(dizz >= 0)
+ {
+ if(dizz > Y) dizz = Y;
+ vx = (X*X + Y*(Y-dizz)) / t;
+ }
+ else
+ {
+ if(dizz < -Y) dizz = -Y;
+ vx = (X*X + Y*(Y+dizz)) / t;
+ }
+ vy = (dizz*X) / t;
+ }
+ x->x_dx = vx * 65536;
+ x->x_dy = vy * 65536;
+ x->x_sx = (-vx * X + vy * Y + X + cos(x->x_phase*5) * 2) * 65536;
+ x->x_sy = (-vx * Y - vy * X + Y + sin(x->x_phase*6) * 2) * 65536;
+
+ x->x_phase += x->x_phase_increment;
+ if(x->x_phase > 5700000) x->x_phase = 0;
+}
+
+
+static void pdp_vertigo_process_yv12(t_pdp_vertigo *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 totalnbpixels;
+ unsigned int u_offset;
+ unsigned int v_offset;
+ unsigned int totnbpixels;
+ short int *poy, *pou, *pov, *pny, *pnu, *pnv, *pcy, *pcu, *pcv;
+ int px, py;
+ short int v;
+ int ox, oy;
+ int i, ninc;
+
+ /* allocate all ressources */
+ if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize )
+ {
+ pdp_vertigo_allocate(x, header->info.image.width*header->info.image.height );
+ post( "pdp_vertigo : reallocated buffers" );
+ }
+
+ x->x_vwidth = header->info.image.width;
+ x->x_vheight = header->info.image.height;
+ x->x_vsize = x->x_vwidth*x->x_vheight;
+
+ totalnbpixels = x->x_vsize;
+ u_offset = x->x_vsize;
+ v_offset = x->x_vsize + (x->x_vsize>>2);
+ totnbpixels = x->x_vsize + (x->x_vsize>>1);
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ pdp_vertigo_set_params(x);
+
+ poy = data;
+ pou = data + x->x_vsize;
+ pov = data + x->x_vsize + (x->x_vsize>>2);
+ pcy = x->x_current_buffer;
+ pcu = x->x_current_buffer + x->x_vsize;
+ pcv = x->x_current_buffer + x->x_vsize + (x->x_vsize>>2);
+ pny = x->x_alt_buffer;
+ pnu = x->x_alt_buffer + x->x_vsize;
+ pnv = x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2);
+ ninc=0;
+ for(py=x->x_vheight; py>0; py--)
+ {
+ ox = x->x_sx;
+ oy = x->x_sy;
+ for(px=x->x_vwidth; px>0; px--)
+ {
+ if ( pny >= ( x->x_alt_buffer + x->x_vsize ) )
+ {
+ post( "pdp_vertigo : abnormal pointer position : pny=%x, start=%x, size=%x ninc=%d px=%d py=%d",
+ pny, x->x_alt_buffer , x->x_vsize-1, ninc, px, py );
+ break;
+ }
+ if ( pnu >= ( x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2) ) )
+ {
+ post( "pdp_vertigo : abnormal pointer position : pnu=%x, start=%x, size=%x ninc=%d px=%d py=%d",
+ pnu, x->x_alt_buffer + x->x_vsize, (x->x_vsize>>2)-1, ninc, px, py );
+ break;
+ }
+ if ( pnv >= ( x->x_alt_buffer + x->x_vsize + (x->x_vsize>>1) ) )
+ {
+ post( "pdp_vertigo : abnormal pointer position : pnv=%x, start=%x, size=%x ninc=%d px=%d py=%d",
+ pnv, x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2), (x->x_vsize>>2)-1, ninc, px, py );
+ break;
+ }
+ i = (oy>>16)*x->x_vwidth + (ox>>16);
+ if (i<0) i = 0;
+ if ( i >= (x->x_vsize + (x->x_vsize>>1)) ) i = (x->x_vsize + (x->x_vsize>>1))-1;
+ v = pcy[i] & 0xffff;
+ v = (v * 3) + ((*poy++) & 0xffff);
+ *pny++ = (v>>2);
+ if ( (((px+1)%2)==0) && (((py+1)%2)==0) )
+ {
+ ninc++;
+ v = pcu[(i/4)] & 0xffff;
+ v = (v * 3) + ((*pou++) & 0xffff);
+ *pnu++ = (v>>2);
+ v = pcv[(i/4)] & 0xffff;
+ v = (v * 3) + ((*pov++) & 0xffff);
+ *pnv++ = (v>>2);
+ }
+ ox += x->x_dx;
+ oy += x->x_dy;
+ }
+ x->x_sx -= x->x_dy;
+ x->x_sy += x->x_dx;
+ }
+
+ memcpy(newdata, x->x_alt_buffer, (x->x_vsize + (x->x_vsize>>1))<<1);
+
+ poy = x->x_current_buffer;
+ x->x_current_buffer = x->x_alt_buffer;
+ x->x_alt_buffer = poy;
+
+ return;
+}
+
+static void pdp_vertigo_sendpacket(t_pdp_vertigo *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_vertigo_process(t_pdp_vertigo *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_vertigo_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_vertigo_process_yv12, pdp_vertigo_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ // pdp_vertigo_process_packet(x);
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_vertigo_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_vertigo_input_0(t_pdp_vertigo *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_vertigo_process(x);
+ }
+}
+
+static void pdp_vertigo_free(t_pdp_vertigo *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+
+ if ( x->x_buffer ) freebytes( x->x_buffer, 2*((x->x_vsize + (x->x_vsize>>1))<<1) );
+}
+
+t_class *pdp_vertigo_class;
+
+void *pdp_vertigo_new(void)
+{
+ int i;
+
+ t_pdp_vertigo *x = (t_pdp_vertigo *)pd_new(pdp_vertigo_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("increment"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("zoomrate"));
+
+ 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_phase = 0;
+ x->x_buffer = NULL;
+ x->x_phase_increment = 0.02;
+ x->x_zoomrate = 1.01;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_vertigo_setup(void)
+{
+// post( pdp_vertigo_version );
+ pdp_vertigo_class = class_new(gensym("pdp_vertigo"), (t_newmethod)pdp_vertigo_new,
+ (t_method)pdp_vertigo_free, sizeof(t_pdp_vertigo), 0, A_NULL);
+
+ class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_increment, gensym("increment"), A_FLOAT, A_NULL);
+ class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_zoomrate, gensym("zoomrate"), A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif