cinelerra-5.1/cinelerra/maskautos.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "automation.inc"
  23 #include "clip.h"
  24 #include "edl.h"
  25 #include "localsession.h"
  26 #include "maskauto.h"
  27 #include "maskautos.h"
  28 #include "track.h"
  29 #include "transportque.inc"
  30
  31 MaskAutos::MaskAutos(EDL *edl,
  32         Track *track)
  33  : Autos(edl, track)
  34 {
  35         type = AUTOMATION_TYPE_MASK;
  36 }
  37
  38 MaskAutos::~MaskAutos()
  39 {
  40 }
  41
  42
  43
  44
  45 void MaskAutos::update_parameter(MaskAuto *src)
  46 {
  47         double selection_start = edl->local_session->get_selectionstart(0);
  48         double selection_end = edl->local_session->get_selectionend(0);
  49
  50 // Selection is always aligned to frame for masks
  51
  52 // Create new keyframe if auto keyframes or replace entire keyframe.
  53         if(selection_start == selection_end)
  54         {
  55 // Search for keyframe to write to
  56                 MaskAuto *dst = (MaskAuto*)get_auto_for_editing();
  57
  58                 dst->copy_data(src);
  59         }
  60         else
  61 // Replace changed parameter in all selected keyframes.
  62         {
  63 // Search all keyframes in selection but don't create a new one.
  64                 int64_t start = track->to_units(selection_start, 0);
  65                 int64_t end = track->to_units(selection_end, 0);
  66                 Auto *current_auto = 0;
  67                 MaskAuto *current = 0;
  68                 current = (MaskAuto*)get_prev_auto(start,
  69                         PLAY_FORWARD,
  70                         current_auto,
  71                         1);
  72
  73 // The first one determines the changed parameters since it is the one displayed
  74 // in the GUI.
  75                 MaskAuto *first = current;
  76
  77 // Update the first one last, so it is available for comparisons to the changed one.
  78                 for(current = (MaskAuto*)NEXT;
  79                         current && current->position < end;
  80                         current = (MaskAuto*)NEXT)
  81                 {
  82                         current->update_parameter(first,
  83                                 src);
  84                 }
  85                 first->copy_data(src);
  86         }
  87 }
  88
  89
  90
  91 void MaskAutos::get_points(ArrayList<MaskPoint*> *points,
  92         int submask,
  93         int64_t position,
  94         int direction)
  95 {
  96         MaskAuto *begin = 0, *end = 0;
  97         position = (direction == PLAY_FORWARD) ? position : (position - 1);
  98
  99 // Get auto before and after position
 100         for(MaskAuto* current = (MaskAuto*)last;
 101                 current;
 102                 current = (MaskAuto*)PREVIOUS)
 103         {
 104                 if(current->position <= position)
 105                 {
 106                         begin = current;
 107                         end = NEXT ? (MaskAuto*)NEXT : current;
 108                         break;
 109                 }
 110         }
 111
 112 // Nothing before position found
 113         if(!begin)
 114         {
 115                 begin = end = (MaskAuto*)first;
 116         }
 117
 118 // Nothing after position found
 119         if(!begin)
 120         {
 121                 begin = end = (MaskAuto*)default_auto;
 122         }
 123
 124
 125         SubMask *mask1 = begin->get_submask(submask);
 126         SubMask *mask2 = end->get_submask(submask);
 127
 128         points->remove_all_objects();
 129         int total_points = MAX(mask1->points.size(), mask2->points.size());
 130         for(int i = 0; i < total_points; i++)
 131         {
 132                 MaskPoint *point = new MaskPoint;
 133                 MaskPoint point1;
 134                 int need_point1 = 1;
 135                 MaskPoint point2;
 136                 int need_point2 = 1;
 137
 138                 if(i < mask1->points.size())
 139                 {
 140                         point1.copy_from(*mask1->points.get(i));
 141                         need_point1 = 0;
 142                 }
 143
 144                 if(i < mask2->points.size())
 145                 {
 146                         point2.copy_from(*mask2->points.get(i));
 147                         need_point2 = 0;
 148                 }
 149
 150                 if(need_point1) point1.copy_from(point2);
 151                 if(need_point2) point2.copy_from(point1);
 152
 153                 avg_points(point,
 154                         &point1,
 155                         &point2,
 156                         position,
 157                         begin->position,
 158                         end->position);
 159                 points->append(point);
 160         }
 161 }
 162
 163
 164 double MaskAutos::get_feather(int64_t position, int i, int direction)
 165 {
 166         Auto *begin = 0, *end = 0;
 167         position = (direction == PLAY_FORWARD) ? position : (position - 1);
 168         MaskAuto*prev = (MaskAuto*)get_prev_auto(position, PLAY_FORWARD, begin, 1);
 169         MaskAuto*next = (MaskAuto*)get_next_auto(position, PLAY_FORWARD, end, 1);
 170         SubMask *prev_mask = prev->get_submask(i), *next_mask = next->get_submask(i);
 171
 172         double weight = end->position == begin->position ? 0.0 :
 173                 (double)(position - begin->position) / (end->position - begin->position);
 174
 175         double result = prev_mask->feather * (1-weight) + next_mask->feather*weight;
 176         return result;
 177 }
 178
 179 double MaskAutos::get_fader(int64_t position, int i, int direction)
 180 {
 181         Auto *begin = 0, *end = 0;
 182         position = (direction == PLAY_FORWARD) ? position : (position - 1);
 183         MaskAuto*prev = (MaskAuto*)get_prev_auto(position, PLAY_FORWARD, begin, 1);
 184         MaskAuto*next = (MaskAuto*)get_next_auto(position, PLAY_FORWARD, end, 1);
 185         SubMask *prev_mask = prev->get_submask(i), *next_mask = next->get_submask(i);
 186
 187         double weight = end->position == begin->position ? 0.0 :
 188                 (double)(position - begin->position) / (end->position - begin->position);
 189
 190         double result = prev_mask->fader * (1-weight) + next_mask->fader*weight;
 191 // printf("MaskAutos::get_fader %d %d %d %f %d %f %d\n", __LINE__, i,
 192 // ((MaskAuto*)begin)->fader, 1.0 - weight, ((MaskAuto*)end)->fader, weight, result);
 193         return result;
 194 }
 195
 196
 197 void MaskAutos::avg_points(MaskPoint *output, MaskPoint *input1, MaskPoint *input2,
 198                 int64_t output_position, int64_t position1, int64_t position2)
 199 {
 200         if(position2 == position1) {
 201                 *output = *input1;
 202         }
 203         else {
 204                 float fraction2 = (float)(output_position - position1) / (position2 - position1);
 205                 float fraction1 = 1 - fraction2;
 206                 output->x = input1->x * fraction1 + input2->x * fraction2;
 207                 output->y = input1->y * fraction1 + input2->y * fraction2;
 208                 output->control_x1 = input1->control_x1 * fraction1 + input2->control_x1 * fraction2;
 209                 output->control_y1 = input1->control_y1 * fraction1 + input2->control_y1 * fraction2;
 210                 output->control_x2 = input1->control_x2 * fraction1 + input2->control_x2 * fraction2;
 211                 output->control_y2 = input1->control_y2 * fraction1 + input2->control_y2 * fraction2;
 212         }
 213
 214 }
 215
 216
 217 Auto* MaskAutos::new_auto()
 218 {
 219         return new MaskAuto(edl, this);
 220 }
 221
 222 void MaskAutos::dump(FILE *fp)
 223 {
 224         fprintf(fp, "   MaskAutos::dump %p\n", this);
 225         fprintf(fp, "   Default: position %jd submasks %d\n",
 226                 default_auto->position,
 227                 ((MaskAuto*)default_auto)->masks.total);
 228         ((MaskAuto*)default_auto)->dump(fp);
 229         for( Auto* current = first; current; current=NEXT ) {
 230                 fprintf(fp, "   position %jd masks %d\n",
 231                         current->position,
 232                         ((MaskAuto*)current)->masks.total);
 233                 ((MaskAuto*)current)->dump(fp);
 234         }
 235 }
 236
 237 int MaskAutos::mask_exists(int64_t position, int direction)
 238 {
 239         Auto *current = 0;
 240         position = (direction == PLAY_FORWARD) ? position : (position - 1);
 241
 242         MaskAuto* keyframe = (MaskAuto*)get_prev_auto(position, direction, current);
 243
 244         for( int i = 0; i < keyframe->masks.total; i++ ) {
 245                 SubMask *mask = keyframe->get_submask(i);
 246                 if(mask->points.total > 1)
 247                         return 1;
 248         }
 249         return 0;
 250 }
 251
 252 int MaskAutos::total_submasks(int64_t position, int direction)
 253 {
 254         position = (direction == PLAY_FORWARD) ? position : (position - 1);
 255         for( MaskAuto* current=(MaskAuto*)last; current; current=(MaskAuto*)PREVIOUS ) {
 256                 if( current->position <= position ) {
 257                         return current->masks.total;
 258                 }
 259         }
 260
 261         return ((MaskAuto*)default_auto)->masks.total;
 262 }
 263
 264
 265 void MaskAutos::translate_masks(float translate_x, float translate_y)
 266 {
 267         ((MaskAuto *)default_auto)->translate_submasks(translate_x, translate_y);
 268         for( MaskAuto* current=(MaskAuto*)first; current; current=(MaskAuto*)NEXT ) {
 269                 current->translate_submasks(translate_x, translate_y);
 270         }
 271 }
 272
 273 void MaskAutos::set_proxy(int orig_scale, int new_scale)
 274 {
 275         ((MaskAuto *)default_auto)->scale_submasks(orig_scale, new_scale);
 276         for( MaskAuto* current=(MaskAuto*)first; current; current=(MaskAuto*)NEXT ) {
 277                 current->scale_submasks(orig_scale, new_scale);
 278         }
 279 }
 280