cinelerra-5.1/plugins/bluebanana/bluebanana.C

   1 /*
   2  * Cinelerra :: Blue Banana - color modification plugin for Cinelerra-CV
   3  * Copyright (C) 2012-2013 Monty <monty@xiph.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  */
  20
  21 #include <math.h>
  22 #include <stdint.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25
  26 #include "bcdisplayinfo.h"
  27 #include "bcsignals.h"
  28 #include "clip.h"
  29 #include "bchash.h"
  30 #include "filexml.h"
  31 #include "bluebanana.h"
  32 #include "bluebananaconfig.h"
  33 #include "bluebananawindow.h"
  34 #include "keyframe.h"
  35 #include "language.h"
  36 #include "loadbalance.h"
  37 #include "playback3d.h"
  38 #include "cicolors.h"
  39 #include "vframe.h"
  40 #include "workarounds.h"
  41
  42 class BluebananaMain;
  43 class BluebananaEngine;
  44 class BluebananaWindow;
  45
  46 REGISTER_PLUGIN(BluebananaMain)
  47
  48 BluebananaMain::BluebananaMain(PluginServer *server)
  49  : PluginVClient(server)
  50 {
  51   engine = 0;
  52
  53   /* be sure a lookup update triggers */
  54   lookup_cache.Hsel_lo=-999999;
  55   lookup_cache.Ssel_lo=-999999;
  56   lookup_cache.Vsel_lo=-999999;
  57   lookup_cache.Fsel_lo=-999999;
  58
  59   lookup_cache.Sadj_lo=-999999;
  60   lookup_cache.Vadj_lo=-999999;
  61   lookup_cache.Radj_lo=-999999;
  62   lookup_cache.Gadj_lo=-999999;
  63   lookup_cache.Badj_lo=-999999;
  64
  65   colormodel=-1;
  66
  67   ants_counter=0;
  68
  69   memset(red_histogram,0,sizeof(red_histogram));
  70   memset(green_histogram,0,sizeof(green_histogram));
  71   memset(blue_histogram,0,sizeof(blue_histogram));
  72   memset(hue_histogram,0,sizeof(hue_histogram));
  73   memset(sat_histogram,0,sizeof(sat_histogram));
  74   memset(value_histogram,0,sizeof(value_histogram));
  75 }
  76
  77 BluebananaMain::~BluebananaMain() {
  78
  79   // if ants are running, run one more pane update to hide them (gui
  80   // is already marked as closed)
  81   if(server && server->mwindow && ants_counter>0)
  82     server->mwindow->sync_parameters();
  83
  84   delete engine;
  85 }
  86
  87 const char* BluebananaMain::plugin_title() { return _("Blue Banana"); }
  88 int BluebananaMain::is_realtime() { return 1; }
  89
  90 NEW_WINDOW_MACRO(BluebananaMain, BluebananaWindow)
  91 LOAD_CONFIGURATION_MACRO(BluebananaMain, BluebananaConfig)
  92
  93 void BluebananaMain::render_gui(void *data){
  94   if(thread){
  95     BluebananaMain *that = (BluebananaMain *)data; // that is server-side
  96     BluebananaWindow *window = (BluebananaWindow *)thread->window;
  97     window->lock_window("BluebananaMain::render_gui");
  98
  99     /* push histogram data to gui */
 100     window->update_histograms(that);
 101
 102     /* push any colormodel update to gui */
 103     if(that->frame && colormodel != that->frame->get_color_model()){
 104       colormodel = that->frame->get_color_model();
 105       window->update();
 106     }
 107
 108     window->unlock_window();
 109   }
 110 }
 111
 112 void BluebananaMain::update_gui(){
 113   if(thread){
 114     BluebananaWindow *window = (BluebananaWindow *)thread->window;
 115     window->lock_window("BluebananaMain::update_gui");
 116     window->flush_config_change();
 117     int reconfigure = load_configuration();
 118     if(reconfigure)
 119       window->update();
 120
 121     window->unlock_window();
 122   }
 123 }
 124
 125 void BluebananaMain::save_data(KeyFrame *keyframe){
 126   FileXML output;
 127
 128   // cause data to be stored directly in text
 129   output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 130   output.tag.set_title("BLUEBANANA");
 131
 132   output.tag.set_property("ACTIVE", config.active);
 133   output.tag.set_property("INVERT_SELECTION", config.invert_selection);
 134   output.tag.set_property("USE_MASK", config.use_mask);
 135   output.tag.set_property("CAPTURE_MASK", config.capture_mask);
 136
 137   output.tag.set_property("HUE_ACTIVE", config.Hsel_active);
 138   output.tag.set_property("HUE_LO", config.Hsel_lo);
 139   output.tag.set_property("HUE_HI", config.Hsel_hi);
 140   output.tag.set_property("HUE_OVERLAP", config.Hsel_over);
 141
 142   output.tag.set_property("SATURATION_ACTIVE", config.Ssel_active);
 143   output.tag.set_property("SATURATION_LO", config.Ssel_lo);
 144   output.tag.set_property("SATURATION_HI", config.Ssel_hi);
 145   output.tag.set_property("SATURATION_OVERLAP", config.Ssel_over);
 146
 147   output.tag.set_property("VALUE_ACTIVE", config.Vsel_active);
 148   output.tag.set_property("VALUE_LO", config.Vsel_lo);
 149   output.tag.set_property("VALUE_HI", config.Vsel_hi);
 150   output.tag.set_property("VALUE_OVERLAP", config.Vsel_over);
 151
 152   output.tag.set_property("FILL_ACTIVE", config.Fsel_active);
 153   output.tag.set_property("FILL_ERODE", config.Fsel_erode);
 154   output.tag.set_property("FILL_LO", config.Fsel_lo);
 155   output.tag.set_property("FILL_MID", config.Fsel_mid);
 156   output.tag.set_property("FILL_HI", config.Fsel_hi);
 157   output.tag.set_property("FILL_FEATHER", config.Fsel_over);
 158
 159   output.tag.set_property("HUE_ADJUST_ACTIVE", config.Hadj_active);
 160   output.tag.set_property("HUE_ADJUST", config.Hadj_val);
 161
 162   output.tag.set_property("SATURATION_ADJUST_ACTIVE", config.Sadj_active);
 163   output.tag.set_property("SATURATION_ADJUST_GAMMA", config.Sadj_gamma);
 164   output.tag.set_property("SATURATION_ADJUST_LO", config.Sadj_lo);
 165   output.tag.set_property("SATURATION_ADJUST_HI", config.Sadj_hi);
 166
 167   output.tag.set_property("VALUE_ADJUST_ACTIVE", config.Vadj_active);
 168   output.tag.set_property("VALUE_ADJUST_GAMMA", config.Vadj_gamma);
 169   output.tag.set_property("VALUE_ADJUST_LO", config.Vadj_lo);
 170   output.tag.set_property("VALUE_ADJUST_HI", config.Vadj_hi);
 171
 172   output.tag.set_property("RED_ADJUST_ACTIVE", config.Radj_active);
 173   output.tag.set_property("RED_ADJUST_GAMMA", config.Radj_gamma);
 174   output.tag.set_property("RED_ADJUST_LO", config.Radj_lo);
 175   output.tag.set_property("RED_ADJUST_HI", config.Radj_hi);
 176
 177   output.tag.set_property("GREEN_ADJUST_ACTIVE", config.Gadj_active);
 178   output.tag.set_property("GREEN_ADJUST_GAMMA", config.Gadj_gamma);
 179   output.tag.set_property("GREEN_ADJUST_LO", config.Gadj_lo);
 180   output.tag.set_property("GREEN_ADJUST_HI", config.Gadj_hi);
 181
 182   output.tag.set_property("BLUE_ADJUST_ACTIVE", config.Badj_active);
 183   output.tag.set_property("BLUE_ADJUST_GAMMA", config.Badj_gamma);
 184   output.tag.set_property("BLUE_ADJUST_LO", config.Badj_lo);
 185   output.tag.set_property("BLUE_ADJUST_HI", config.Badj_hi);
 186
 187   output.tag.set_property("OPACITY_ADJUST_ACTIVE", config.Oadj_active);
 188   output.tag.set_property("OPACITY_ADJUST", config.Oadj_val);
 189
 190   output.append_tag();
 191   output.append_newline();
 192
 193   output.tag.set_title("/BLUEBANANA");
 194   output.append_tag();
 195   output.append_newline();
 196
 197   if(keyframe->position==0){
 198     /* this will otherwise overwrite the nonauto information as well */
 199     output_nonauto(&output);
 200   }
 201
 202   output.terminate_string();
 203 }
 204
 205 // save non-auto data to the default keyframe at zero and does it
 206 // without alerting the keyframing mechanism
 207 void BluebananaMain::save_nonauto(){
 208
 209   KeyFrame *default_keyframe=get_prev_keyframe(0);
 210   if(default_keyframe){
 211     FileXML input;
 212     FileXML output;
 213     int result = 0;
 214
 215     input.read_from_string(default_keyframe->get_data());
 216     output.set_shared_output(default_keyframe->get_data(), MESSAGESIZE);
 217
 218     while(!result){
 219       result = input.read_tag();
 220
 221       if(!result &&
 222          !input.tag.title_is("BLUEBANANA_NONAUTO") &&
 223          !input.tag.title_is("/BLUEBANANA_NONAUTO")){
 224         input.tag.write_tag(&output);
 225         output.append_newline();
 226       }
 227     }
 228
 229     output_nonauto(&output);
 230   }
 231 }
 232
 233 void BluebananaMain::output_nonauto(FileXML *output){
 234   output->tag.set_title("BLUEBANANA_NONAUTO");
 235   output->tag.set_property("MARK", config.mark);
 236   output->append_tag();
 237   output->tag.set_title("/BLUEBANANA_NONAUTO");
 238   output->append_tag();
 239   output->append_newline();
 240   output->terminate_string();
 241 }
 242
 243 void BluebananaMain::load_nonauto(){
 244   /* nonauto data stored in the default keyframe at position 0 */
 245   KeyFrame *default_keyframe=get_prev_keyframe(0);
 246   if(default_keyframe){
 247     FileXML input;
 248     int result = 0;
 249     input.set_shared_input(default_keyframe->get_data(), strlen(default_keyframe->get_data()));
 250
 251     while(!result){
 252       result = input.read_tag();
 253
 254       if(!result && input.tag.title_is("BLUEBANANA_NONAUTO")){
 255         config.mark = input.tag.get_property("MARK", config.mark);
 256       }
 257     }
 258   }
 259 }
 260
 261
 262 void BluebananaMain::read_data(KeyFrame *keyframe){
 263   FileXML input;
 264   int result = 0;
 265
 266   input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 267
 268   while(!result){
 269     result = input.read_tag();
 270
 271     if(!result && input.tag.title_is("BLUEBANANA")){
 272       config.active = input.tag.get_property("ACTIVE", config.active);
 273       config.invert_selection = input.tag.get_property("INVERT_SELECTION", config.invert_selection);
 274       config.use_mask = input.tag.get_property("USE_MASK", config.use_mask);
 275       config.capture_mask = input.tag.get_property("CAPTURE_MASK", config.capture_mask);
 276
 277       config.Hsel_active = input.tag.get_property("HUE_ACTIVE", config.Hsel_active);
 278       config.Hsel_lo = input.tag.get_property("HUE_LO", config.Hsel_lo);
 279       config.Hsel_hi = input.tag.get_property("HUE_HI", config.Hsel_hi);
 280       config.Hsel_over = input.tag.get_property("HUE_OVERLAP", config.Hsel_over);
 281
 282       config.Ssel_active = input.tag.get_property("SATURATION_ACTIVE", config.Ssel_active);
 283       config.Ssel_lo = input.tag.get_property("SATURATION_LO", config.Ssel_lo);
 284       config.Ssel_hi = input.tag.get_property("SATURATION_HI", config.Ssel_hi);
 285       config.Ssel_over = input.tag.get_property("SATURATION_OVERLAP", config.Ssel_over);
 286
 287       config.Vsel_active = input.tag.get_property("VALUE_ACTIVE", config.Vsel_active);
 288       config.Vsel_lo = input.tag.get_property("VALUE_LO", config.Vsel_lo);
 289       config.Vsel_hi = input.tag.get_property("VALUE_HI", config.Vsel_hi);
 290       config.Vsel_over = input.tag.get_property("VALUE_OVERLAP", config.Vsel_over);
 291
 292       config.Fsel_active = input.tag.get_property("FILL_ACTIVE", config.Fsel_active);
 293       config.Fsel_erode = input.tag.get_property("FILL_ERODE", config.Fsel_erode);
 294       config.Fsel_lo = input.tag.get_property("FILL_LO", config.Fsel_lo);
 295       config.Fsel_mid = input.tag.get_property("FILL_MID", config.Fsel_mid);
 296       config.Fsel_hi = input.tag.get_property("FILL_HI", config.Fsel_hi);
 297       config.Fsel_over = input.tag.get_property("FILL_FEATHER", config.Fsel_over);
 298
 299       config.Hadj_active = input.tag.get_property("HUE_ADJUST_ACTIVE", config.Hadj_active);
 300       config.Hadj_val = input.tag.get_property("HUE_ADJUST", config.Hadj_val);
 301
 302       config.Sadj_active = input.tag.get_property("SATURATION_ADJUST_ACTIVE", config.Sadj_active);
 303       config.Sadj_gamma = input.tag.get_property("SATURATION_ADJUST_GAMMA", config.Sadj_gamma);
 304       config.Sadj_lo = input.tag.get_property("SATURATION_ADJUST_LO", config.Sadj_lo);
 305       config.Sadj_hi = input.tag.get_property("SATURATION_ADJUST_HI", config.Sadj_hi);
 306
 307       config.Vadj_active = input.tag.get_property("VALUE_ADJUST_ACTIVE", config.Vadj_active);
 308       config.Vadj_gamma = input.tag.get_property("VALUE_ADJUST_GAMMA", config.Vadj_gamma);
 309       config.Vadj_lo = input.tag.get_property("VALUE_ADJUST_LO", config.Vadj_lo);
 310       config.Vadj_hi = input.tag.get_property("VALUE_ADJUST_HI", config.Vadj_hi);
 311
 312       config.Radj_active = input.tag.get_property("RED_ADJUST_ACTIVE", config.Radj_active);
 313       config.Radj_gamma = input.tag.get_property("RED_ADJUST_GAMMA", config.Radj_gamma);
 314       config.Radj_lo = input.tag.get_property("RED_ADJUST_LO", config.Radj_lo);
 315       config.Radj_hi = input.tag.get_property("RED_ADJUST_HI", config.Radj_hi);
 316
 317       config.Gadj_active = input.tag.get_property("GREEN_ADJUST_ACTIVE", config.Gadj_active);
 318       config.Gadj_gamma = input.tag.get_property("GREEN_ADJUST_GAMMA", config.Gadj_gamma);
 319       config.Gadj_lo = input.tag.get_property("GREEN_ADJUST_LO", config.Gadj_lo);
 320       config.Gadj_hi = input.tag.get_property("GREEN_ADJUST_HI", config.Gadj_hi);
 321
 322       config.Badj_active = input.tag.get_property("BLUE_ADJUST_ACTIVE", config.Badj_active);
 323       config.Badj_gamma = input.tag.get_property("BLUE_ADJUST_GAMMA", config.Badj_gamma);
 324       config.Badj_lo = input.tag.get_property("BLUE_ADJUST_LO", config.Badj_lo);
 325       config.Badj_hi = input.tag.get_property("BLUE_ADJUST_HI", config.Badj_hi);
 326
 327       config.Oadj_active = input.tag.get_property("OPACITY_ADJUST_ACTIVE", config.Oadj_active);
 328       config.Oadj_val = input.tag.get_property("OPACITY_ADJUST", config.Oadj_val);
 329
 330     }
 331   }
 332
 333   load_nonauto();
 334 }
 335
 336 static void select_grow_h(float *hrow, float *vrow, int width){
 337   int i;
 338
 339   /* spread left */
 340   for(i=0;i<width-1;i++){
 341     if(hrow[i]<hrow[i+1])hrow[i]=hrow[i+1];
 342     if(vrow[i]<hrow[i])vrow[i]=hrow[i];
 343   }
 344   /* spread right */
 345   for(i=width-1;i>0;i--){
 346     if(hrow[i]<hrow[i-1])hrow[i]=hrow[i-1];
 347     if(vrow[i]<hrow[i])vrow[i]=hrow[i];
 348   }
 349 }
 350
 351 static void select_shrink_h(float *hrow, float *vrow, int width){
 352   int i;
 353
 354   /* spread left */
 355   for(i=0;i<width-1;i++){
 356     if(hrow[i]>hrow[i+1])hrow[i]=hrow[i+1];
 357     if(vrow[i]>hrow[i])vrow[i]=hrow[i];
 358   }
 359   /* spread right */
 360   for(i=width-1;i>0;i--){
 361     if(hrow[i]>hrow[i-1])hrow[i]=hrow[i-1];
 362     if(vrow[i]>hrow[i])vrow[i]=hrow[i];
 363   }
 364 }
 365
 366 static void select_grow_v(float *row0, float *row1, int width){
 367   int i;
 368
 369   /* spread into 0 */
 370   for(i=0;i<width;i++)
 371     if(row0[i]<row1[i])row0[i]=row1[i];
 372 }
 373
 374 static void select_shrink_v(float *row0, float *row1, int width){
 375   int i;
 376
 377   /* spread out of 0 */
 378   for(i=0;i<width;i++)
 379     if(row0[i]>row1[i])row0[i]=row1[i];
 380 }
 381
 382 static void threaded_horizontal(float *in, float *work,
 383                                 int width, int height,
 384                                 BluebananaEngine *e, int tasks, int passes,
 385                                 void(*func)(float *, float *, int)){
 386
 387   /* these are individually fast operations; here we do in fact make
 388      cache region collisions as impossible as we can.  Live with the
 389      overhead of the join. */
 390   int i,j;
 391   e->set_task(tasks,"H_even");
 392   j = e->next_task();
 393   {
 394     int row = (j*2)*height/(tasks*2);
 395     int end = (j*2+1)*height/(tasks*2);
 396     for(;row<end;row++)
 397       for(i=0;i<passes;i++)
 398         func(in+row*width,work+row*width,width);
 399   }
 400   e->wait_task();
 401
 402   e->set_task(0,"H_odd");
 403   {
 404     int row = (j*2+1)*height/(tasks*2);
 405     int end = (j*2+2)*height/(tasks*2);
 406     for(;row<end;row++)
 407       for(i=0;i<passes;i++)
 408         func(in+row*width,work+row*width,width);
 409   }
 410   e->wait_task();
 411 }
 412
 413 static void threaded_vertical(float *work, float *temp,
 414                               int width, int height,
 415                               BluebananaEngine *e, int tasks,
 416                               void(*func)(float *, float *, int)){
 417
 418   /* regions overlap, so this becomes a bit more complex. */
 419
 420   /* rather than on-demand task allocation, we use the task engine to
 421      grab a slot, then reuse this same slot through several joins */
 422
 423   e->set_task(tasks,"up_odd");
 424   int region = e->next_task(); /* grab one slot */
 425   int start_row = (region*2)*height/(tasks*2);
 426   int mid_row = (region*2+1)*height/(tasks*2);
 427   int end_row = (region*2+2)*height/(tasks*2);
 428   int row;
 429
 430   /* spread up, starting at middle row, moving down */
 431   /* first task is to save a copy of the un-transformed middle row, as
 432      we'll need it for the even pass */
 433   memcpy(temp,work+mid_row*width,sizeof(*temp)*width);
 434
 435   /* odd interleave */
 436   for(row=mid_row;row<end_row-1;row++)
 437     func(work+row*width,work+(row+1)*width,width);
 438   if(end_row<height && row<end_row)
 439     func(work+row*width,work+(row+1)*width,width);
 440   e->wait_task();
 441
 442   /* even interleave */
 443   e->set_task(0,"up_even");
 444   for(row=start_row;row<mid_row-1;row++)
 445     func(work+row*width,work+(row+1)*width,width);
 446   if(row<mid_row)
 447     func(work+row*width,temp,width);
 448   e->wait_task();
 449
 450   /* spread down, starting at mid row and moving up */
 451   /* once again, grab a temp vector for the second pass overlap */
 452   memcpy(temp,work+mid_row*width,sizeof(*temp)*width);
 453
 454   /* even interleave */
 455   e->set_task(0,"down_even");
 456   for(row=mid_row;row>start_row;row--)
 457     func(work+row*width,work+(row-1)*width,width);
 458   if(start_row>0)
 459     func(work+row*width,work+(row-1)*width,width);
 460   e->wait_task();
 461
 462   /* odd interleave */
 463   e->set_task(0,"down_odd");
 464   for(row=end_row-1;row>mid_row+1;row--)
 465     func(work+row*width,work+(row-1)*width,width);
 466   if(row>mid_row)
 467     func(work+row*width,temp,width);
 468   e->wait_task();
 469
 470   /* done */
 471 }
 472
 473 static float *fill_one(float *in, float *work,
 474                       int width, int height,
 475                       BluebananaEngine *e, // NULL if we're not threading
 476                       char *pattern,
 477                       int n){
 478   int i,j;
 479   int tasks = e?e->get_total_packages():0;
 480   float temp[width];
 481
 482   if(n){
 483
 484     if(e){
 485
 486       /* multiple memcpys running at once is occasionally a total
 487          cache disaster on Sandy Bridge.  So only one thread gets to
 488          copy, the others wait. */
 489       e->set_task(1,"fill_memcpy");
 490       while((j = e->next_task())>=0){
 491         memcpy(work,in,width*height*sizeof(*work));
 492       }
 493
 494     }else{
 495       memcpy(work,in,width*height*sizeof(*work));
 496     }
 497
 498
 499     for(i=0;i<n;i++){
 500       switch(pattern[i]){
 501       case 'H': /* grow horizontal */
 502         if(e){
 503           threaded_horizontal(in, work, width, height, e, tasks, 1, select_grow_h);
 504         }else{
 505           for(j=0;j<height;j++)
 506             select_grow_h(in+j*width,work+j*width,width);
 507         }
 508         break;
 509
 510       case 'V': /* grow vertical */
 511         if(e){
 512           threaded_vertical(work, temp, width, height, e, tasks, select_grow_v);
 513         }else{
 514           for(j=0;j<height-1;j++)
 515             select_grow_v(work+j*width,work+(j+1)*width,width);
 516           for(j=height-1;j>0;j--)
 517             select_grow_v(work+j*width,work+(j-1)*width,width);
 518         }
 519         break;
 520
 521       case 'h': /* shrink horizontal */
 522         if(e){
 523           threaded_horizontal(in, work, width, height, e, tasks, 1, select_shrink_h);
 524         }else{
 525           for(j=0;j<height;j++)
 526             select_shrink_h(in+j*width,work+j*width,width);
 527         }
 528         break;
 529
 530       default: /* shrink vertical */
 531
 532         if(e){
 533           threaded_vertical(work, temp, width, height, e, tasks, select_shrink_v);
 534         }else{
 535           for(j=0;j<height-1;j++)
 536             select_shrink_v(work+j*width,work+(j+1)*width,width);
 537           for(j=height-1;j>0;j--)
 538             select_shrink_v(work+j*width,work+(j-1)*width,width);
 539         }
 540         break;
 541       }
 542     }
 543     return work;
 544   }else{
 545     return in;
 546   }
 547 }
 548
 549 static void select_feather_h(float *p, float *dummy, int w){
 550   for(int x=0;x<w-1;x++)
 551     p[x] = (p[x]+p[x+1])*.5;
 552   for(int x=w-1;x>0;x--)
 553     p[x] = (p[x]+p[x-1])*.5;
 554 }
 555
 556 static void select_feather_v(float *p0, float *p1, int w){
 557   for(int x=0; x<w; x++)
 558     p0[x] = (p0[x]+p1[x])*.5;
 559 }
 560
 561 static void feather_one(float *in,
 562                         int width, int height,
 563                         BluebananaEngine *e, // NULL if we're not threading
 564                         int n){
 565   int i,j;
 566   int tasks = e?e->get_total_packages():0;
 567   float temp[width];
 568
 569   if(e){
 570     threaded_horizontal(in, 0, width, height, e, tasks, n, select_feather_h);
 571     for(int i=0;i<n;i++)
 572       threaded_vertical(in, temp, width, height, e, tasks, select_feather_v);
 573   }else{
 574     for(j=0;j<height;j++)
 575       for(i=0;i<n;i++)
 576         select_feather_h(in+j*width,0,width);
 577
 578     for(i=0;i<n;i++){
 579       for(j=0;j<height-1;j++)
 580         select_feather_v(in+j*width,in+(j+1)*width,width);
 581       for(j=height-1;j>0;j--)
 582         select_feather_v(in+j*width,in+(j-1)*width,width);
 583     }
 584   }
 585 }
 586
 587 /* here and not in the engine as the GUI also uses it (without
 588    threading) */
 589 float *BluebananaMain::fill_selection(float *in, float *work,
 590                                          int width, int height,
 591                                          BluebananaEngine *e){
 592   float *A=in;
 593   float *B=work;
 594   float *C;
 595
 596   C=fill_one(A,B,width,height,e,select_one,select_one_n);
 597   C=fill_one(C,(C==A?B:A),width,height,e,select_two,select_two_n);
 598   C=fill_one(C,(C==A?B:A),width,height,e,select_three,select_three_n);
 599
 600   feather_one(C,width,height,e,config.Fsel_over);
 601
 602   return C;
 603 }
 604
 605
 606 int BluebananaMain::process_buffer(VFrame *frame,
 607                                    int64_t start_position,
 608                                    double frame_rate){
 609   ants_counter++;
 610
 611   SET_TRACE
 612   load_configuration();
 613   this->frame = frame;
 614
 615   SET_TRACE
 616   update_lookups(1);
 617
 618   SET_TRACE
 619   read_frame(frame, 0, start_position, frame_rate, 0);
 620
 621   if(!engine)
 622     engine = new BluebananaEngine(this, get_project_smp() + 1,
 623                                   get_project_smp() + 1);
 624   SET_TRACE
 625   engine->process_packages(frame);
 626
 627   // push final histograms to UI if it's up
 628   SET_TRACE
 629   send_render_gui(this);
 630
 631   return 0;
 632 }
 633