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Diffstat (limited to 'modules/pdp_spotlight.c')
| -rw-r--r-- | modules/pdp_spotlight.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/modules/pdp_spotlight.c b/modules/pdp_spotlight.c new file mode 100644 index 0000000..e294642 --- /dev/null +++ b/modules/pdp_spotlight.c @@ -0,0 +1,320 @@ +/* + * 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 "yuv.h" +#include <math.h> + +static char *pdp_spotlight_version = "pdp_spotlight: version 0.1, specially made for cabaret, written by Yves Degoyon (ydegoyon@free.fr)"; + +typedef struct pdp_spotlight_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; + t_int x_cx; // coordinates of lens center + t_int x_cy; // coordinates of lens center + t_int x_ssize; // width of the spotlight + t_float x_strength; // strength of the light (0<=strength<=1) + + t_int x_colorR; // red component of the color + t_int x_colorG; // green component of the color + t_int x_colorB; // blue component of the color + +} t_pdp_spotlight; + +static void pdp_spotlight_ssize(t_pdp_spotlight *x, t_floatarg fssize ) +{ + if ( fssize>=0 ) + { + x->x_ssize = (int)fssize; + } +} + +static void pdp_spotlight_cy(t_pdp_spotlight *x, t_floatarg fcy ) +{ + if ( fcy>0 ) + { + x->x_cy = (int)fcy; + } +} + +static void pdp_spotlight_cx(t_pdp_spotlight *x, t_floatarg fcx ) +{ + if ( fcx>0 ) + { + x->x_cx = (int)fcx; + } +} + +static void pdp_spotlight_r(t_pdp_spotlight *x, t_floatarg fr ) +{ + if ( ( fr >= 0 ) && ( fr <= 255 ) ) + { + x->x_colorR = (int)fr; + } +} + +static void pdp_spotlight_g(t_pdp_spotlight *x, t_floatarg fg ) +{ + if ( ( fg >= 0 ) && ( fg <= 255 ) ) + { + x->x_colorG = (int)fg; + } +} + +static void pdp_spotlight_b(t_pdp_spotlight *x, t_floatarg fb ) +{ + if ( ( fb >= 0 ) && ( fb <= 255 ) ) + { + x->x_colorB = (int)fb; + } +} + +static void pdp_spotlight_strength(t_pdp_spotlight *x, t_floatarg fstrength ) +{ + if ( ( fstrength >= 0.0 ) && ( fstrength <= 1.0 ) ) + { + x->x_strength = fstrength; + } +} + +static void pdp_spotlight_process_yv12(t_pdp_spotlight *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; + + short int *poy, *pou, *pov, *pny, *pnu, *pnv; + short int pmx, pMx, pmy, pMy; + int px, py, ray2; + + x->x_vwidth = header->info.image.width; + x->x_vheight = header->info.image.height; + x->x_vsize = x->x_vwidth*x->x_vheight; + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + memcpy(newdata, data, (x->x_vsize + (x->x_vsize>>1))<<1); + + poy = data; + pou = data + x->x_vsize; + pov = data + x->x_vsize + (x->x_vsize>>2); + pny = newdata; + pnu = newdata + x->x_vsize; + pnv = newdata + x->x_vsize + (x->x_vsize>>2); + if ( x->x_cy-x->x_ssize < 0 ) + { + pmy=0; + } + else + { + pmy=x->x_cy-x->x_ssize; + } + if ( x->x_cy+x->x_ssize > x->x_vheight ) + { + pMy=x->x_vheight-1; + } + else + { + pMy=x->x_cy+x->x_ssize; + } + if ( x->x_cx-x->x_ssize < 0 ) + { + pmx=0; + } + else + { + pmx=x->x_cx-x->x_ssize; + } + if ( x->x_cx+x->x_ssize > x->x_vwidth ) + { + pMx=x->x_vwidth-1; + } + else + { + pMx=x->x_cx+x->x_ssize; + } + ray2 = pow( x->x_ssize, 2 ); + for (py = pmy; py <= pMy ; py++) + { + for (px = pmx; px <= pMx; px++) + { + if ( ( pow( (px-x->x_cx), 2 ) + pow( (py-x->x_cy), 2 ) ) < ray2 ) + { + *(pny+py*x->x_vwidth+px) = + (t_float)(*(pny+py*x->x_vwidth+px))*(1.-x->x_strength) + + (t_float)(((yuv_RGBtoY( (x->x_colorB << 16) + (x->x_colorG << 8) + x->x_colorR ))<<7)) + *(x->x_strength); + *(pnu+(py>>1)*(x->x_vwidth>>1)+(px>>1)) = + (t_float)(*(pnu+(py>>1)*(x->x_vwidth>>1)+(px>>1)))*(1.-x->x_strength) + + (t_float)(((yuv_RGBtoU( (x->x_colorB << 16) + (x->x_colorG << 8) + + x->x_colorR ))-128)<<8)*(x->x_strength); + *(pnv+(py>>1)*(x->x_vwidth>>1)+(px>>1)) = + (t_float)(*(pnv+(py>>1)*(x->x_vwidth>>1)+(px>>1)))*(1.-x->x_strength) + + (t_float)(((yuv_RGBtoV( (x->x_colorB << 16) + (x->x_colorG << 8) + + x->x_colorR ))-128)<<8)*(x->x_strength); + } + } + } + + return; +} + +static void pdp_spotlight_sendpacket(t_pdp_spotlight *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_spotlight_process(t_pdp_spotlight *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_spotlight_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_spotlight_process_yv12, pdp_spotlight_sendpacket, &x->x_queue_id); + break; + + default: + /* don't know the type, so dont pdp_spotlight_process */ + break; + + } + } +} + +static void pdp_spotlight_input_0(t_pdp_spotlight *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_spotlight_process(x); + + } +} + +static void pdp_spotlight_free(t_pdp_spotlight *x) +{ + int i; + + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); +} + +t_class *pdp_spotlight_class; + +void *pdp_spotlight_new(void) +{ + int i; + + t_pdp_spotlight *x = (t_pdp_spotlight *)pd_new(pdp_spotlight_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cx")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cy")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ssize")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("r")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("g")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("b")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("strength")); + + 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_cx = 70; + x->x_cy = 70; + x->x_ssize = 50; + x->x_colorR = 255; + x->x_colorG = 255; + x->x_colorB = 255; + x->x_strength = 0.5; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_spotlight_setup(void) +{ +// post( pdp_spotlight_version ); + pdp_spotlight_class = class_new(gensym("pdp_spotlight"), (t_newmethod)pdp_spotlight_new, + (t_method)pdp_spotlight_free, sizeof(t_pdp_spotlight), 0, A_NULL); + + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_cx, gensym("cx"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_cy, gensym("cy"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_ssize, gensym("ssize"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_r, gensym("r"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_g, gensym("g"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_b, gensym("b"), A_FLOAT, A_NULL); + class_addmethod(pdp_spotlight_class, (t_method)pdp_spotlight_strength, gensym("strength"), A_FLOAT, A_NULL); + class_sethelpsymbol( pdp_spotlight_class, gensym("pdp_spotlight.pd") ); + +} + +#ifdef __cplusplus +} +#endif |