cinelerra-5.1/plugins/titler/titler.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 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 // Originally developed by Heroine Virtual Ltd.
  23 // Support for multiple encodings, outline (stroke) by
  24 // Andraz Tori <Andraz.tori1@guest.arnes.si>
  25 // Additional support for UTF-8 by
  26 // Paolo Rampino aka Akirad <info at tuttoainternet.it>
  27
  28
  29 #include "asset.h"
  30 #include "bccmodels.h"
  31 #include "bcsignals.h"
  32 #include "cache.h"
  33 #include "clip.h"
  34 #include "cstrdup.h"
  35 #include "edl.h"
  36 #include "edlsession.h"
  37 #include "file.h"
  38 #include "filexml.h"
  39 #include "filesystem.h"
  40 #include "indexable.h"
  41 #include "ft2build.h"
  42 #include FT_GLYPH_H
  43 #include FT_BBOX_H
  44 #include FT_OUTLINE_H
  45 #include FT_STROKER_H
  46 #include "language.h"
  47 #include "mwindow.inc"
  48 #include "overlayframe.h"
  49 #include "renderengine.h"
  50 #include "titler.h"
  51 #include "titlerwindow.h"
  52 #include "transportque.h"
  53 #include "vrender.h"
  54
  55
  56 #include <errno.h>
  57 #include <stdint.h>
  58 #include <stdio.h>
  59 #include <string.h>
  60 #include <endian.h>
  61 #include <byteswap.h>
  62 #include <iconv.h>
  63 #include <wctype.h>
  64 #include <sys/stat.h>
  65 #include <fontconfig/fontconfig.h>
  66
  67 #define FIXED_FONT "Bitstream Vera Sans Mono (Bits)"
  68 #define SMALL (1.0 / 64.0)
  69
  70 #define MAX_FLT  3.40282347e+38
  71 #define MIN_FLT -3.40282347e+38
  72
  73 REGISTER_PLUGIN(TitleMain)
  74
  75 #ifdef X_HAVE_UTF8_STRING
  76 #define DEFAULT_ENCODING "UTF-8"
  77 #else
  78 #define DEFAULT_ENCODING "ISO8859-1"
  79 #endif
  80 #define DEFAULT_TIMECODEFORMAT TIME_HMS
  81
  82 TitleConfig::TitleConfig()
  83 {
  84         style = 0;
  85         color = BLACK;
  86         alpha = 0xff;
  87         outline_alpha = 0xff;
  88         size = 24;
  89         motion_strategy = NO_MOTION;
  90         loop = 0;
  91         line_pitch = 0;
  92         hjustification = JUSTIFY_CENTER;
  93         vjustification = JUSTIFY_MID;
  94         fade_in = 0.0;
  95         fade_out = 0.0;
  96         title_x = title_y = 0.0;
  97         title_w = title_h = 0;
  98         dropshadow = 2;
  99         strcpy(font, "fixed");
 100         strcpy(encoding, DEFAULT_ENCODING);
 101         timecode_format = DEFAULT_TIMECODEFORMAT;
 102         pixels_per_second = 1.0;
 103         timecode = 0;
 104         stroke_width = 1.0;
 105         wtext[0] = 0;  wlen = 0;
 106         color_stroke = 0xff0000;
 107         outline_color = WHITE;
 108         background = 0;
 109         strcpy(background_path, "");
 110
 111         outline_size = 0;
 112         window_w = 800;
 113         window_h = 460;
 114         next_keyframe_position = 0;
 115         prev_keyframe_position = 0;
 116         drag = 0;
 117         loop_playback = 0;
 118 }
 119
 120 TitleConfig::~TitleConfig()
 121 {
 122 }
 123
 124 int TitleConfig::equivalent(TitleConfig &that)
 125 {
 126         return !strcasecmp(font, that.font) &&
 127                 style == that.style &&
 128                 size == that.size &&
 129                 color == that.color &&
 130                 color_stroke == that.color_stroke &&
 131                 stroke_width == that.stroke_width &&
 132                 outline_color == that.outline_color &&
 133                 alpha == that.alpha &&
 134                 outline_alpha == that.outline_alpha &&
 135                 EQUIV(pixels_per_second, that.pixels_per_second) &&
 136                 motion_strategy == that.motion_strategy &&
 137                 loop == that.loop &&
 138                 line_pitch == that.line_pitch &&
 139                 hjustification == that.hjustification &&
 140                 vjustification == that.vjustification &&
 141                 fade_in == that.fade_in && fade_out == that.fade_out &&
 142                 title_x == that.title_x && title_y == that.title_y &&
 143                 title_w == that.title_w && title_h == that.title_h &&
 144                 dropshadow == that.dropshadow &&
 145                 timecode == that.timecode &&
 146                 timecode_format == that.timecode_format &&
 147                 outline_size == that.outline_size &&
 148                 !strcasecmp(encoding, that.encoding) &&
 149                 wlen == that.wlen &&
 150                 !memcmp(wtext, that.wtext, wlen * sizeof(wchar_t));
 151 }
 152
 153 void TitleConfig::copy_from(TitleConfig &that)
 154 {
 155         strcpy(font, that.font);
 156         style = that.style;
 157         size = that.size;
 158         color = that.color;
 159         color_stroke = that.color_stroke;
 160         stroke_width = that.stroke_width;
 161         outline_color = that.outline_color;
 162         alpha = that.alpha;
 163         outline_alpha = that.outline_alpha;
 164         pixels_per_second = that.pixels_per_second;
 165         motion_strategy = that.motion_strategy;
 166         loop = that.loop;
 167         line_pitch = that.line_pitch;
 168         hjustification = that.hjustification;
 169         vjustification = that.vjustification;
 170         fade_in = that.fade_in;
 171         fade_out = that.fade_out;
 172         title_x = that.title_x;
 173         title_y = that.title_y;
 174         title_w = that.title_w;
 175         title_h = that.title_h;
 176         dropshadow = that.dropshadow;
 177         timecode = that.timecode;
 178         timecode_format = that.timecode_format;
 179         outline_size = that.outline_size;
 180         strcpy(encoding, that.encoding);
 181         memcpy(wtext, that.wtext, that.wlen * sizeof(wchar_t));
 182         wlen = that.wlen;
 183         window_w = that.window_w;
 184         window_h = that.window_h;
 185 }
 186
 187 void TitleConfig::interpolate(TitleConfig &prev, TitleConfig &next,
 188         int64_t prev_frame, int64_t next_frame, int64_t current_frame)
 189 {
 190         strcpy(font, prev.font);
 191         strcpy(encoding, prev.encoding);
 192         style = prev.style;
 193         size = prev.size;
 194         color = prev.color;
 195         color_stroke = prev.color_stroke;
 196         stroke_width = prev.stroke_width;
 197         outline_color = prev.outline_color;
 198         alpha = prev.alpha;
 199         outline_alpha = prev.outline_alpha;
 200         motion_strategy = prev.motion_strategy;
 201         loop = prev.loop;
 202         line_pitch = prev.line_pitch;
 203         hjustification = prev.hjustification;
 204         vjustification = prev.vjustification;
 205         fade_in = prev.fade_in;
 206         fade_out = prev.fade_out;
 207         outline_size = prev.outline_size;
 208         pixels_per_second = prev.pixels_per_second;
 209         memcpy(wtext, prev.wtext, prev.wlen * sizeof(wchar_t));
 210         wlen = prev.wlen;
 211         wtext[wlen] = 0;
 212
 213         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 214         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 215         this->title_x = prev.title_x * prev_scale + next.title_x * next_scale;
 216         this->title_y = prev.title_y * prev_scale + next.title_y * next_scale;
 217 //      this->title_x = prev.title_x;
 218 //      this->title_y = prev.title_y;
 219         timecode = prev.timecode;
 220         timecode_format = prev.timecode_format;
 221         this->dropshadow = prev.dropshadow * prev_scale + next.dropshadow * next_scale;
 222 //      this->dropshadow = prev.dropshadow;
 223 }
 224
 225 void TitleConfig::to_wtext(const char *from_enc, const char *text, int tlen)
 226 {
 227         wlen = BC_Resources::encode(from_enc, BC_Resources::wide_encoding,
 228                 (char*)text,tlen, (char *)wtext,sizeof(wtext)) / sizeof(wchar_t);
 229         while( wlen > 0 && !wtext[wlen-1] ) --wlen;
 230 }
 231
 232
 233 TitleGlyph::TitleGlyph()
 234 {
 235         char_code = 0;
 236         size = 0;
 237         data = 0;
 238         data_stroke = 0;
 239         freetype_index = 0;
 240         width = 0;
 241         height = 0;
 242         style = 0;
 243         pitch = 0;
 244         left = 0;
 245         top = 0;
 246         bottom = 0;
 247         right = 0;
 248         advance_x = 0;
 249 }
 250
 251
 252 TitleGlyph::~TitleGlyph()
 253 {
 254 //printf("TitleGlyph::~TitleGlyph 1\n");
 255         if( data ) delete data;
 256         if( data_stroke ) delete data_stroke;
 257 }
 258
 259
 260 GlyphPackage::GlyphPackage() : LoadPackage()
 261 {
 262         glyph = 0;
 263 }
 264
 265 GlyphUnit::GlyphUnit(TitleMain *plugin, GlyphEngine *server)
 266  : LoadClient(server)
 267 {
 268         this->plugin = plugin;
 269         freetype_library = 0;
 270         freetype_face = 0;
 271 }
 272
 273 GlyphUnit::~GlyphUnit()
 274 {
 275         if( freetype_library )
 276                 FT_Done_FreeType(freetype_library);
 277 }
 278
 279 void GlyphUnit::process_package(LoadPackage *package)
 280 {
 281         GlyphPackage *pkg = (GlyphPackage*)package;
 282         TitleGlyph *glyph = pkg->glyph;
 283         int result = 0;
 284         char new_path[BCTEXTLEN];
 285         if( plugin->load_freetype_face(freetype_library, freetype_face, glyph->font->path) ) {
 286                 printf(_("GlyphUnit::process_package FT_New_Face failed, path=%s\n"),
 287                         glyph->font->path);
 288                 result = 1;
 289         }
 290
 291         if( !result ) {
 292                 int gindex = FT_Get_Char_Index(freetype_face, glyph->char_code);
 293
 294 //printf("GlyphUnit::process_package 1 %c\n", glyph->char_code);
 295 // Char not found
 296                 if( gindex == 0 ) {
 297                         BC_Resources *resources =  BC_WindowBase::get_resources();
 298                         // Search replacement font
 299                         if( resources->find_font_by_char(glyph->char_code, new_path, freetype_face) ) {
 300                                 plugin->load_freetype_face(freetype_library,
 301                                         freetype_face, new_path);
 302                                 gindex = FT_Get_Char_Index(freetype_face, glyph->char_code);
 303                         }
 304                 }
 305                 FT_Set_Pixel_Sizes(freetype_face, glyph->size, 0);
 306
 307                 if( gindex == 0 ) {
 308 // carrige return
 309                         if( glyph->char_code != 10 )
 310                                 printf(_("GlyphUnit::process_package FT_Load_Char failed - char: %li.\n"),
 311                                         glyph->char_code);
 312 // Prevent a crash here
 313                         glyph->width = 8;  glyph->height = 8;
 314                         glyph->pitch = 8;  glyph->advance_x = 8;
 315                         glyph->left = 9;   glyph->top = 9;
 316                         glyph->right = 0;  glyph->bottom = 0;
 317                         glyph->freetype_index = 0;
 318                         glyph->data = new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 319                         glyph->data->clear_frame();
 320                         glyph->data_stroke = 0;
 321
 322 // create outline glyph
 323                         if( plugin->config.stroke_width >= SMALL &&
 324                                 (plugin->config.style & BC_FONT_OUTLINE) ) {
 325                                 glyph->data_stroke = new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 326                                 glyph->data_stroke->clear_frame();
 327                         }
 328                 }
 329 // char found and no outline desired
 330                 else if( plugin->config.stroke_width < SMALL ||
 331                         !(plugin->config.style & BC_FONT_OUTLINE) ) {
 332                         FT_Glyph glyph_image;
 333                         FT_BBox bbox;
 334                         FT_Bitmap bm;
 335                         FT_Load_Glyph(freetype_face, gindex, FT_LOAD_DEFAULT);
 336                         FT_Get_Glyph(freetype_face->glyph, &glyph_image);
 337                         FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph_image)->outline, &bbox);
 338 //                      printf("Stroke: Xmin: %ld, Xmax: %ld, Ymin: %ld, yMax: %ld\n",
 339 //                                      bbox.xMin,bbox.xMax, bbox.yMin, bbox.yMax);
 340
 341                         glyph->width = bm.width = ((bbox.xMax - bbox.xMin + 63) >> 6);
 342                         glyph->height = bm.rows = ((bbox.yMax - bbox.yMin + 63) >> 6);
 343                         glyph->pitch = bm.pitch = bm.width;
 344                         bm.pixel_mode = FT_PIXEL_MODE_GRAY;
 345                         bm.num_grays = 256;
 346                         glyph->left = (bbox.xMin + 31) >> 6;
 347                         glyph->top = (bbox.yMax + 31) >> 6;
 348                         glyph->right = (bbox.xMax + 31) >> 6;
 349                         glyph->bottom = (bbox.yMin + 31) >> 6;
 350                         glyph->freetype_index = gindex;
 351                         glyph->advance_x = ((freetype_face->glyph->advance.x + 31) >> 6);
 352 //printf("GlyphUnit::process_package 1 width=%d height=%d pitch=%d left=%d top=%d advance_x=%d freetype_index=%d\n",
 353 //glyph->width, glyph->height, glyph->pitch, glyph->left, glyph->top, glyph->advance_x, glyph->freetype_index);
 354
 355                         glyph->data = new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 356                         glyph->data->clear_frame();
 357                         bm.buffer = glyph->data->get_data();
 358                         FT_Outline_Translate(&((FT_OutlineGlyph) glyph_image)->outline,
 359                                 - bbox.xMin, - bbox.yMin);
 360                         FT_Outline_Get_Bitmap( freetype_library,
 361                                 &((FT_OutlineGlyph) glyph_image)->outline,
 362                                 &bm);
 363                         FT_Done_Glyph(glyph_image);
 364                 }
 365                 else {
 366 // Outline desired and glyph found
 367                         FT_Glyph glyph_image;
 368                         FT_Stroker stroker;
 369                         FT_Outline outline;
 370                         FT_Bitmap bm;
 371                         FT_BBox bbox;
 372                         FT_UInt npoints, ncontours;
 373
 374                         FT_Load_Glyph(freetype_face, gindex, FT_LOAD_DEFAULT);
 375                         FT_Get_Glyph(freetype_face->glyph, &glyph_image);
 376
 377 // check if the outline is ok (non-empty);
 378                         FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph_image)->outline, &bbox);
 379                         if( bbox.xMin == 0 && bbox.xMax == 0 &&
 380                             bbox.yMin == 0 && bbox.yMax == 0 ) {
 381                                 FT_Done_Glyph(glyph_image);
 382                                 glyph->width = 0;   glyph->height = 0;
 383                                 glyph->left = 0;    glyph->top = 0;
 384                                 glyph->right = 0;   glyph->bottom = 0;
 385                                 glyph->pitch = 0;
 386                                 glyph->data =
 387                                         new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 388                                 glyph->data_stroke =
 389                                         new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 390                                 glyph->advance_x =((int)(freetype_face->glyph->advance.x +
 391                                         plugin->config.stroke_width * 64)) >> 6;
 392                                 return;
 393                         }
 394 #if FREETYPE_MAJOR > 2 || (FREETYPE_MAJOR == 2 && FREETYPE_MINOR >= 2)
 395                         FT_Stroker_New(freetype_library, &stroker);
 396 #else
 397                         FT_Stroker_New(((FT_LibraryRec *)freetype_library)->memory, &stroker);
 398 #endif
 399                         FT_Stroker_Set(stroker, (int)(plugin->config.stroke_width * 64),
 400                                 FT_STROKER_LINECAP_ROUND, FT_STROKER_LINEJOIN_ROUND, 0);
 401                         FT_Stroker_ParseOutline(stroker, &((FT_OutlineGlyph) glyph_image)->outline,1);
 402                         FT_Stroker_GetCounts(stroker,&npoints, &ncontours);
 403                         if( npoints == 0 && ncontours == 0 ) {
 404 // this never happens, but FreeType has a bug regarding Linotype's Palatino font
 405                                 FT_Stroker_Done(stroker);
 406                                 FT_Done_Glyph(glyph_image);
 407                                 glyph->width = 0;   glyph->height = 0;
 408                                 glyph->left = 0;    glyph->top = 0;
 409                                 glyph->right = 0;   glyph->bottom = 0;
 410                                 glyph->pitch = 0;
 411                                 glyph->data =
 412                                         new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 413                                 glyph->data_stroke =
 414                                         new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 415                                 glyph->advance_x =((int)(freetype_face->glyph->advance.x +
 416                                         plugin->config.stroke_width * 64)) >> 6;
 417                                 return;
 418                         };
 419
 420                         FT_Outline_New(freetype_library, npoints, ncontours, &outline);
 421                         outline.n_points=0;
 422                         outline.n_contours=0;
 423                         FT_Stroker_Export (stroker, &outline);
 424                         FT_Outline_Get_BBox(&outline, &bbox);
 425                         FT_Outline_Translate(&outline, - bbox.xMin, - bbox.yMin);
 426                         FT_Outline_Translate(&((FT_OutlineGlyph) glyph_image)->outline,
 427                                         - bbox.xMin,
 428                                         - bbox.yMin + (int)(plugin->config.stroke_width*32));
 429 //                      printf("Stroke: Xmin: %ld, Xmax: %ld, Ymin: %ld, yMax: %ld\n"
 430 //                                      "Fill   Xmin: %ld, Xmax: %ld, Ymin: %ld, yMax: %ld\n",
 431 //                                      bbox.xMin,bbox.xMax, bbox.yMin, bbox.yMax,
 432 //                                      bbox_fill.xMin,bbox_fill.xMax, bbox_fill.yMin, bbox_fill.yMax);
 433
 434                         glyph->width = bm.width = ((bbox.xMax - bbox.xMin) >> 6)+1;
 435                         glyph->height = bm.rows = ((bbox.yMax - bbox.yMin) >> 6) +1;
 436                         glyph->pitch = bm.pitch = bm.width;
 437                         bm.pixel_mode = FT_PIXEL_MODE_GRAY;
 438                         bm.num_grays = 256;
 439                         glyph->left = (bbox.xMin + 31) >> 6;
 440                         glyph->top = (bbox.yMax + 31) >> 6;
 441                         glyph->right = (bbox.xMax + 31) >> 6;
 442                         glyph->bottom = (bbox.yMin + 31) >> 6;
 443                         glyph->freetype_index = gindex;
 444                         int real_advance = ((int)ceil((float)freetype_face->glyph->advance.x +
 445                                 plugin->config.stroke_width * 64) >> 6);
 446                         glyph->advance_x = glyph->width + glyph->left;
 447                         if( real_advance > glyph->advance_x )
 448                                 glyph->advance_x = real_advance;
 449 //printf("GlyphUnit::process_package 1 width=%d height=%d "
 450 // "pitch=%d left=%d top=%d advance_x=%d freetype_index=%d\n",
 451 // glyph->width, glyph->height, glyph->pitch, glyph->left,
 452 // glyph->top, glyph->advance_x, glyph->freetype_index);
 453
 454
 455 //printf("GlyphUnit::process_package 1\n");
 456                         glyph->data = new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 457                         glyph->data->clear_frame();
 458                         glyph->data_stroke = new VFrame(glyph->width, glyph->height, BC_A8, glyph->pitch);
 459                         glyph->data_stroke->clear_frame();
 460 // for debugging        memset( glyph->data_stroke->get_data(), 60, glyph->pitch * glyph->height);
 461                         bm.buffer=glyph->data->get_data();
 462                         FT_Outline_Get_Bitmap( freetype_library,
 463                                 &((FT_OutlineGlyph) glyph_image)->outline,
 464                                 &bm);
 465                         bm.buffer=glyph->data_stroke->get_data();
 466                         FT_Outline_Get_Bitmap( freetype_library,
 467                         &outline,
 468                                 &bm);
 469                         FT_Outline_Done(freetype_library,&outline);
 470                         FT_Stroker_Done(stroker);
 471                         FT_Done_Glyph(glyph_image);
 472
 473 //printf("GlyphUnit::process_package 2\n");
 474                 }
 475         }
 476 }
 477
 478
 479 GlyphEngine::GlyphEngine(TitleMain *plugin, int cpus)
 480  : LoadServer(cpus, cpus)
 481 {
 482         this->plugin = plugin;
 483 }
 484
 485 void GlyphEngine::init_packages()
 486 {
 487         int current_package = 0;
 488         for( int i=0; i<plugin->title_glyphs.count(); ++i ) {
 489                 if( !plugin->title_glyphs[i]->data ) {
 490                         GlyphPackage *pkg = (GlyphPackage*)get_package(current_package++);
 491                         pkg->glyph = plugin->title_glyphs[i];
 492                 }
 493         }
 494 }
 495
 496 LoadClient* GlyphEngine::new_client()
 497 {
 498         return new GlyphUnit(plugin, this);
 499 }
 500
 501 LoadPackage* GlyphEngine::new_package()
 502 {
 503         return new GlyphPackage;
 504 }
 505
 506
 507 // Copy a single character to the text mask
 508 TitlePackage::TitlePackage()
 509  : LoadPackage()
 510 {
 511         x = y = 0;
 512         chr = 0;
 513 }
 514
 515
 516 TitleUnit::TitleUnit(TitleMain *plugin, TitleEngine *server)
 517  : LoadClient(server)
 518 {
 519         this->plugin = plugin;
 520         this->engine = server;
 521         this->chr = 0;
 522 }
 523
 524 static void get_mask_colors(int rgb, int color_model, int &rr, int &gg, int &bb)
 525 {
 526         int r = 0xff & (rgb>>16), g = 0xff & (rgb>>8), b = 0xff & (rgb>>0);
 527         if( BC_CModels::is_yuv(color_model) ) bc_rgb2yuv(r,g,b, r,g,b);
 528         rr = r;  gg = g; bb = b;
 529 }
 530
 531 void TitleUnit::draw_frame(int mode, VFrame *dst, VFrame *src, int x, int y)
 532 {
 533         int inp_w = src->get_w(), inp_h = src->get_h();
 534         int out_w = dst->get_w(), out_h = dst->get_h();
 535         unsigned char **inp_rows = src->get_rows();
 536         unsigned char **out_rows = dst->get_rows();
 537
 538         int x_inp = 0, y_inp = 0;
 539         int x_out = x;
 540         if( x_out < 0 ) { x_inp = -x_out;  x_out = 0; }
 541         if( x_out+inp_w > out_w ) inp_w = out_w-x_out;
 542         if( x_inp >= inp_w || x_out >= out_w ) return;
 543         int y_out = y;
 544         if( y_out < 0 ) { y_inp = -y_out;  y_out = 0; }
 545         if( y_out+inp_h > out_h ) inp_h = out_h-y_out;
 546         if( y_inp >= inp_h || y_out >= out_h ) return;
 547         int color = chr->color, max = 0xff;
 548         int alpha = chr->alpha * chr->fade;
 549         int ofs = BC_CModels::is_yuv(dst->get_color_model()) ? 0x80 : 0x00;
 550
 551         switch( mode ) {
 552         case DRAW_ALPHA: {
 553                 while( y_inp < inp_h && y_out < out_h ) {
 554                         uint8_t *inp = inp_rows[y_inp], *out = out_rows[y_out];
 555                         for( int xin=x_inp,xout=x_out*4+3; xin<inp_w; ++xin,xout+=4 ) {
 556                                 out[xout] = inp[xin];
 557                         }
 558                         ++y_inp;  ++y_out;
 559                 }
 560                 break; }
 561         case DRAW_COLOR: {
 562                 int r = 0, g = 0, b = 0;
 563                 get_mask_colors(color, plugin->text_model, r, g, b);
 564                 while( y_inp < inp_h && y_out < out_h ) {
 565                         uint8_t *inp = inp_rows[y_inp], *out = out_rows[y_out];
 566                         for( int xin=x_inp,xout=x_out*4+0; xin<inp_w; ++xin,xout+=4 ) {
 567                                 int in_a = inp[xin], out_a = out[xout+3];
 568                                 if( in_a + out_a == 0 ) continue;
 569                                 int opacity = (in_a * alpha)/max, transp = out_a * (max - opacity)/max;
 570                                 out[xout+0] = (opacity * r + transp * out[xout+0]) / max;
 571                                 out[xout+1] = (opacity * (g-ofs) + transp * (out[xout+1]-ofs)) / max + ofs;
 572                                 out[xout+2] = (opacity * (b-ofs) + transp * (out[xout+2]-ofs)) / max + ofs;
 573                                 out[xout+3] = opacity + transp - (opacity * transp) / max;
 574                         }
 575                         ++y_inp;  ++y_out;
 576                 }
 577                 break; }
 578         case DRAW_IMAGE: {
 579                 while( y_inp < inp_h && y_out < out_h ) {
 580                         uint8_t *inp = inp_rows[y_inp], *out = out_rows[y_out];
 581                         for( int xin=x_inp,xout=x_out*4+0; xin<inp_w; ++xin,xout+=4 ) {
 582                                 int xinp = xin*4, in_a = inp[xinp+3], out_a = out[xout+3];
 583                                 if( in_a + out_a == 0 ) continue;
 584                                 int opacity = (in_a * alpha)/max, transp = out_a * (max - opacity)/max;
 585                                 out[xout+0] = (opacity * inp[xinp+0] + transp * out[xout+0]) / max;
 586                                 out[xout+1] = (opacity * (inp[xinp+1]-ofs) + transp * (out[xout+1]-ofs)) / max + ofs;
 587                                 out[xout+2] = (opacity * (inp[xinp+2]-ofs) + transp * (out[xout+2]-ofs)) / max + ofs;
 588                                 out[xout+3] = opacity + transp - (opacity * transp) / max;
 589                         }
 590                         ++y_inp;  ++y_out;
 591                 }
 592                 break; }
 593         }
 594 }
 595
 596
 597 void TitleUnit::process_package(LoadPackage *package)
 598 {
 599         TitlePackage *pkg = (TitlePackage*)package;
 600         int x = pkg->x, y = pkg->y;
 601         chr = pkg->chr;
 602         switch( chr->typ ) {
 603         case CHAR_IMAGE: {
 604                 VFrame *vframe = (VFrame *)chr->vp;
 605                 if( !vframe ) return;
 606                 draw_frame(DRAW_IMAGE, plugin->text_mask, vframe, x, y);
 607                 break; }
 608         case CHAR_GLYPH: {
 609                 if( chr->wch == 0 || chr->wch == '\n') return;
 610                 TitleGlyph *glyph = (TitleGlyph *)chr->vp;
 611                 if( !glyph ) return;
 612                 if( engine->do_dropshadow ) {
 613                         x += plugin->config.dropshadow;
 614                         y += plugin->config.dropshadow;
 615                 }
 616                 else if( plugin->config.dropshadow < 0 ) {
 617                         x -= plugin->config.dropshadow;
 618                         y -= plugin->config.dropshadow;
 619                 }
 620                 int mode = engine->do_dropshadow ? DRAW_ALPHA : DRAW_COLOR;
 621                 draw_frame(mode, plugin->text_mask, glyph->data, x, y);
 622                 if( plugin->config.stroke_width >= SMALL && (plugin->config.style & BC_FONT_OUTLINE) )
 623                         draw_frame(mode, plugin->stroke_mask, glyph->data_stroke, x, y);
 624                 break; }
 625         }
 626 }
 627
 628 TitleEngine::TitleEngine(TitleMain *plugin, int cpus)
 629  : LoadServer(cpus, cpus)
 630 {
 631         this->plugin = plugin;
 632 }
 633
 634 void TitleEngine::init_packages()
 635 {
 636         int current_package = 0;
 637         for( int i=plugin->visible_char1; i<plugin->visible_char2; ++i ) {
 638                 TitlePackage *pkg = (TitlePackage*)get_package(current_package++);
 639                 TitleChar *chr = plugin->title_chars[i];
 640                 TitleRow *row = plugin->title_rows[chr->row];
 641                 pkg->chr = chr;
 642                 pkg->x = row->x0 + chr->x - plugin->mask_x1;
 643                 pkg->y = row->y0 - chr->y - plugin->mask_y1;
 644 //printf("draw '%c' at %d,%d\n",(int)pkg->chr->wch, pkg->x, pkg->y);
 645         }
 646 }
 647
 648 LoadClient* TitleEngine::new_client()
 649 {
 650         return new TitleUnit(plugin, this);
 651 }
 652
 653 LoadPackage* TitleEngine::new_package()
 654 {
 655         return new TitlePackage;
 656 }
 657
 658 void TitleTranslateUnit::translation_array_f(transfer_table_f* &table,
 659         float in_x1, float in_x2, int in_total,
 660         float out_x1, float out_x2, int out_total,
 661         int &x1_out, int &x2_out)
 662 {
 663         int out_w;
 664         //float offset = out_x1 - in_x1;
 665
 666         x1_out = (int)out_x1;
 667         x2_out = MIN((int)ceil(out_x2), out_total);
 668         if( x1_out >= x2_out ) return;
 669
 670         out_w = x2_out - x1_out;
 671         table = new transfer_table_f[out_w];
 672         bzero(table, sizeof(transfer_table_f) * out_w);
 673
 674         float in_x = in_x1;
 675         for( int out_x=x1_out; out_x<x2_out; ++out_x ) {
 676                 transfer_table_f *entry = &table[out_x - x1_out];
 677
 678                 entry->in_x1 = (int)in_x;
 679                 entry->in_x2 = (int)in_x + 1;
 680
 681 // Get fraction of output pixel to fill
 682                 entry->output_fraction = 1;
 683
 684                 if( out_x1 > out_x ) {
 685                         entry->output_fraction -= out_x1 - out_x;
 686                 }
 687
 688                 if( out_x2 < out_x + 1 ) {
 689                         entry->output_fraction = (out_x2 - out_x);
 690                 }
 691
 692 // Advance in_x until out_x_fraction is filled
 693                 float out_x_fraction = entry->output_fraction;
 694                 float in_x_fraction = floor(in_x + 1) - in_x;
 695
 696                 if( out_x_fraction <= in_x_fraction ) {
 697                         entry->in_fraction1 = out_x_fraction;
 698                         entry->in_fraction2 = 0.0;
 699                         in_x += out_x_fraction;
 700                 }
 701                 else {
 702                         entry->in_fraction1 = in_x_fraction;
 703                         in_x += out_x_fraction;
 704                         entry->in_fraction2 = in_x - floor(in_x);
 705                 }
 706
 707 // Clip in_x and zero out fraction.  This doesn't work for YUV.
 708                 if( entry->in_x2 >= in_total ) {
 709                         entry->in_x2 = in_total - 1;
 710                         entry->in_fraction2 = 0.0;
 711                 }
 712
 713                 if( entry->in_x1 >= in_total ) {
 714                         entry->in_x1 = in_total - 1;
 715                         entry->in_fraction1 = 0.0;
 716                 }
 717         }
 718 }
 719
 720
 721
 722 // Copy a single character to the text mask
 723 TitleOutlinePackage::TitleOutlinePackage()
 724  : LoadPackage()
 725 {
 726 }
 727
 728
 729 TitleOutlineUnit::TitleOutlineUnit(TitleMain *plugin, TitleOutlineEngine *server)
 730  : LoadClient(server)
 731 {
 732         this->plugin = plugin;
 733         this->engine = server;
 734 }
 735
 736 void TitleOutlineUnit::process_package(LoadPackage *package)
 737 {
 738         TitleOutlinePackage *pkg = (TitleOutlinePackage*)package;
 739         int r = 0, g = 0, b = 0, outline_a = plugin->config.outline_alpha;
 740         get_mask_colors(plugin->config.outline_color, plugin->mask_model, r, g, b);
 741
 742         unsigned char **outline_rows = plugin->outline_mask->get_rows();
 743         unsigned char **text_rows = plugin->text_mask->get_rows();
 744         int mask_w1 = plugin->text_mask->get_w()-1;
 745         int mask_h1 = plugin->text_mask->get_h()-1;
 746         int ofs = plugin->config.outline_size;
 747
 748         if( engine->pass == 0 ) {
 749 // get max alpha under outline size macropixel
 750                 for( int y=pkg->y1, my=pkg->y2; y<my; ++y ) {
 751                         unsigned char *out_row = outline_rows[y];
 752                         int y1 = y - ofs, y2 = y + ofs;
 753                         CLAMP(y1, 0, mask_h1);  CLAMP(y2, 0, mask_h1);
 754                         for( int x=0, mx=plugin->text_mask->get_w(); x<mx; ++x ) {
 755                                 int x1 = x - ofs, x2 = x + ofs;
 756                                 CLAMP(x1, 0, mask_w1);  CLAMP(x2, 0, mask_w1);
 757                                 int max_a = 0;
 758                                 for( int yy=y1; yy<=y2; ++yy ) {
 759                                         unsigned char *text_row = text_rows[yy];
 760                                         for( int xx = x1; xx <= x2; ++xx ) {
 761                                                 unsigned char *pixel = text_row + xx*4;
 762                                                 if( pixel[3] > max_a ) max_a = pixel[3];
 763                                         }
 764                                 }
 765                                 unsigned char *out = out_row + x*4;
 766                                 out[0] = r;  out[1] = g;  out[2] = b;
 767                                 out[3] = (max_a * outline_a) / 0xff;
 768                         }
 769                 }
 770                 return;
 771         }
 772         else {
 773 // Overlay text mask on top of outline mask
 774                 int ofs = BC_CModels::is_yuv(plugin->output->get_color_model()) ? 0x80 : 0;
 775                 for( int y=pkg->y1, my=pkg->y2; y<my; ++y ) {
 776                         unsigned char *outline_row = outline_rows[y];
 777                         unsigned char *text_row = text_rows[y];
 778                         for( int x=0, mx=plugin->text_mask->get_w(); x<mx; ++x ) {
 779                                 unsigned char *out = text_row + x * 4;
 780                                 unsigned char *inp = outline_row + x * 4;
 781                                 int out_a = out[3], in_a = inp[3];
 782                                 int transparency = in_a * (0xff - out_a) / 0xff;
 783                                 out[0] = (out[0] * out_a + inp[0] * transparency) / 0xff;
 784                                 out[1] = ((out[1]-ofs) * out_a + (inp[1]-ofs) * transparency) / 0xff + ofs;
 785                                 out[2] = ((out[2]-ofs) * out_a + (inp[2]-ofs) * transparency) / 0xff + ofs;
 786                                 out[3] = in_a + out_a - in_a*out_a / 0xff;
 787                         }
 788                 }
 789         }
 790 }
 791
 792 TitleOutlineEngine::TitleOutlineEngine(TitleMain *plugin, int cpus)
 793  : LoadServer(cpus, cpus)
 794 {
 795         this->plugin = plugin;
 796 }
 797
 798 void TitleOutlineEngine::init_packages()
 799 {
 800         int mask_h = plugin->text_mask->get_h();
 801         if( !mask_h ) return;
 802         int py1 = 0, py2 = 0;
 803         int pkgs = get_total_packages();
 804         for( int i=0; i<pkgs; py1=py2 ) {
 805                 TitleOutlinePackage *pkg = (TitleOutlinePackage*)get_package(i);
 806                 py2 = (++i * mask_h)/ pkgs;
 807                 pkg->y1 = py1;  pkg->y2 = py2;
 808         }
 809 }
 810
 811 void TitleOutlineEngine::do_outline()
 812 {
 813         pass = 0;  process_packages();
 814         pass = 1;  process_packages();
 815 }
 816
 817 LoadClient* TitleOutlineEngine::new_client()
 818 {
 819         return new TitleOutlineUnit(plugin, this);
 820 }
 821
 822 LoadPackage* TitleOutlineEngine::new_package()
 823 {
 824         return new TitleOutlinePackage;
 825 }
 826
 827
 828
 829 TitleTranslatePackage::TitleTranslatePackage()
 830  : LoadPackage()
 831 {
 832         y1 = y2 = 0;
 833 }
 834
 835
 836 TitleTranslateUnit::TitleTranslateUnit(TitleMain *plugin, TitleTranslate *server)
 837  : LoadClient(server)
 838 {
 839         this->plugin = plugin;
 840 }
 841
 842 void TitleTranslate::run_packages()
 843 {
 844 // Generate scaling tables
 845         delete [] x_table;  x_table = 0;
 846         delete [] y_table;  y_table = 0;
 847
 848         float in_w = xlat_mask->get_w();
 849         float in_h = xlat_mask->get_h();
 850         float ix1 = 0, ix2 = ix1 + in_w;
 851         float iy1 = 0, iy2 = iy1 + in_h;
 852
 853         float out_w = plugin->output->get_w();
 854         float out_h = plugin->output->get_h();
 855         float x1 = plugin->title_x, x2 = x1 + plugin->title_w;
 856         float y1 = plugin->title_y, y2 = y1 + plugin->title_h;
 857         bclamp(x1, 0, out_w);  bclamp(y1, 0, out_h);
 858         bclamp(x2, 0, out_w);  bclamp(y2, 0, out_h);
 859
 860         float ox1 = plugin->title_x + plugin->text_x - plugin->text_x1 + plugin->mask_x1, ox2 = ox1 + in_w;
 861         float oy1 = plugin->title_y + plugin->text_y - plugin->text_y1 + plugin->mask_y1, oy2 = oy1 + in_h;
 862         if( ox1 < x1 ) { ix1 -= (ox1-x1);  ox1 = x1; }
 863         if( oy1 < y1 ) { iy1 -= (oy1-y1);  oy1 = y1; }
 864         if( ox2 > x2 ) { ix2 -= (ox2-x2);  ox2 = x2; }
 865         if( oy2 > y2 ) { iy2 -= (oy2-x2);  oy2 = y2; }
 866 #if 0
 867 printf("TitleTranslate text  txy=%7.2f,%-7.2f\n"
 868   "  mxy1=%7d,%-7d mxy2=%7d,%-7d\n"
 869   "   xy1=%7.2f,%-7.2f  xy2=%7.2f,%-7.2f\n"
 870   "  ixy1=%7.2f,%-7.2f ixy2=%7.2f,%-7.2f\n"
 871   "  oxy1=%7.2f,%-7.2f oxy2=%7.2f,%-7.2f\n",
 872    plugin->text_x, plugin->text_y,
 873    plugin->mask_x1, plugin->mask_y1, plugin->mask_x2, plugin->mask_y2,
 874    x1,y1, x2,y2, ix1,iy1, ix2,iy2, ox1,oy1, ox2,oy2);
 875 #endif
 876         out_x1 = out_x2 = out_y1 = out_y2 = 0;
 877         TitleTranslateUnit::translation_array_f(x_table,
 878                 ix1, ix2, in_w, ox1, ox2, out_w, out_x1, out_x2);
 879         TitleTranslateUnit::translation_array_f(y_table,
 880                 iy1, iy2, in_h, oy1, oy2, out_h, out_y1, out_y2);
 881
 882         process_packages();
 883 }
 884
 885
 886
 887 #define TRANSLATE(type, max, components, ofs) { \
 888         unsigned char **in_rows = server->xlat_mask->get_rows(); \
 889         type **out_rows = (type**)plugin->output->get_rows(); \
 890  \
 891         for( int y=pkg->y1; y<pkg->y2; ++y ) { \
 892                 int in_y1 = server->y_table[y].in_x1; \
 893                 int in_y2 = server->y_table[y].in_x2; \
 894                 float y_f1 = server->y_table[y].in_fraction1; \
 895                 float y_f2 = server->y_table[y].in_fraction2; \
 896                 unsigned char *in_row1 = in_rows[in_y1]; \
 897                 unsigned char *in_row2 = in_rows[in_y2]; \
 898                 type *out_row = out_rows[y + server->out_y1]; \
 899                 for( int i=0,x=server->out_x1; x<server->out_x2; ++i,++x ) { \
 900                         int in_x1 = 4*server->x_table[i].in_x1; \
 901                         int in_x2 = 4*server->x_table[i].in_x2; \
 902                         float x_f1 = server->x_table[i].in_fraction1; \
 903                         float x_f2 = server->x_table[i].in_fraction2; \
 904                         float f11 = x_f1 * y_f1 / (256.f-max); \
 905                         float f12 = x_f2 * y_f1 / (256.f-max); \
 906                         float f21 = x_f1 * y_f2 / (256.f-max); \
 907                         float f22 = x_f2 * y_f2 / (256.f-max); \
 908                         type input_r = (type)( \
 909                                 in_row1[in_x1 + 0] * f11 + in_row1[in_x2 + 0] * f12 +  \
 910                                 in_row2[in_x1 + 0] * f21 + in_row2[in_x2 + 0] * f22 ); \
 911                         type input_g = (type)( \
 912                                 in_row1[in_x1 + 1] * f11 + in_row1[in_x2 + 1] * f12 +  \
 913                                 in_row2[in_x1 + 1] * f21 + in_row2[in_x2 + 1] * f22 ); \
 914                         type input_b = (type)( \
 915                                 in_row1[in_x1 + 2] * f11 + in_row1[in_x2 + 2] * f12 +  \
 916                                 in_row2[in_x1 + 2] * f21 + in_row2[in_x2 + 2] * f22 ); \
 917                         type input_a = (type)( \
 918                                 in_row1[in_x1 + 3] * f11 + in_row1[in_x2 + 3] * f12 +  \
 919                                 in_row2[in_x1 + 3] * f21 + in_row2[in_x2 + 3] * f22 ); \
 920                         input_a = input_a * plugin->fade; \
 921                         if( components == 4 ) { \
 922                                 type transparency = out_row[x * components + 3] * (max - input_a) / max; \
 923                                 out_row[x * components + 0] =  (input_r * input_a + \
 924                                         out_row[x * components + 0] * transparency) / max; \
 925                                 out_row[x * components + 1] =  ((input_g-ofs) * input_a + \
 926                                         (out_row[x * components + 1]-ofs) * transparency) / max + ofs; \
 927                                 out_row[x * components + 2] =  ((input_b-ofs) * input_a + \
 928                                         (out_row[x * components + 2]-ofs) * transparency) / max + ofs; \
 929                                 out_row[x * components + 3] =  MAX(input_a, out_row[x * components + 3]); \
 930                         } \
 931                         else { \
 932                                 type transparency = max - input_a; \
 933                                 out_row[x * components + 0] = (input_r * input_a + \
 934                                         out_row[x * components + 0] * transparency) / max; \
 935                                 out_row[x * components + 1] =  ((input_g-ofs) * input_a + \
 936                                         (out_row[x * components + 1]-ofs) * transparency) / max + ofs; \
 937                                 out_row[x * components + 2] =  ((input_b-ofs) * input_a + \
 938                                         (out_row[x * components + 2]-ofs) * transparency) / max + ofs; \
 939                         } \
 940                 } \
 941         } \
 942 }
 943
 944
 945 void TitleTranslateUnit::process_package(LoadPackage *package)
 946 {
 947         TitleTranslatePackage *pkg = (TitleTranslatePackage*)package;
 948         TitleTranslate *server = (TitleTranslate*)this->server;
 949
 950         switch( plugin->output->get_color_model() ) {
 951         case BC_RGB888:     TRANSLATE(unsigned char, 0xff, 3, 0);    break;
 952         case BC_RGB_FLOAT:  TRANSLATE(float, 1.0, 3, 0);             break;
 953         case BC_YUV888:     TRANSLATE(unsigned char, 0xff, 3, 0x80); break;
 954         case BC_RGBA_FLOAT: TRANSLATE(float, 1.0, 4, 0);             break;
 955         case BC_RGBA8888:   TRANSLATE(unsigned char, 0xff, 4, 0);    break;
 956         case BC_YUVA8888:   TRANSLATE(unsigned char, 0xff, 4, 0x80); break;
 957         }
 958 //printf("TitleTranslateUnit::process_package 5\n");
 959 }
 960
 961
 962 TitleTranslate::TitleTranslate(TitleMain *plugin, int cpus)
 963  : LoadServer(cpus, cpus)
 964 {
 965         this->plugin = plugin;
 966         x_table = 0;
 967         y_table = 0;
 968         out_x1 = out_x2 = 0;
 969         out_y1 = out_y2 = 0;
 970 }
 971
 972 TitleTranslate::~TitleTranslate()
 973 {
 974         delete [] x_table;
 975         delete [] y_table;
 976 }
 977
 978 void TitleTranslate::init_packages()
 979 {
 980         int out_h = out_y2 - out_y1;
 981         int py1 = 0, py2 = 0;
 982         int pkgs = get_total_packages();
 983         for( int i=0; i<pkgs; py1=py2 ) {
 984                 TitleTranslatePackage *pkg = (TitleTranslatePackage*)get_package(i);
 985                 py2 = (++i*out_h) / pkgs;
 986                 pkg->y1 = py1;  pkg->y2 = py2;
 987         }
 988 //printf("TitleTranslate::init_packages 2\n");
 989 }
 990
 991 LoadClient* TitleTranslate::new_client()
 992 {
 993         return new TitleTranslateUnit(plugin, this);
 994 }
 995
 996 LoadPackage* TitleTranslate::new_package()
 997 {
 998         return new TitleTranslatePackage;
 999 }
1000
1001 TitleCurNudge::TitleCurNudge(TitleParser *parser, TitleMain *plugin)
1002  : TitleStack<int>(parser, 0)
1003 {
1004 }
1005 TitleCurColor::TitleCurColor(TitleParser *parser, TitleMain *plugin)
1006  : TitleStack<int>(parser, plugin->config.color)
1007 {
1008 }
1009 TitleCurAlpha::TitleCurAlpha(TitleParser *parser, TitleMain *plugin)
1010  : TitleStack<int>(parser, plugin->config.alpha)
1011 {
1012 }
1013 TitleCurSize::TitleCurSize(TitleParser *parser, TitleMain *plugin)
1014  : TitleStack<float>(parser, plugin->config.size)
1015 {
1016 }
1017 TitleCurBold::TitleCurBold(TitleParser *parser, TitleMain *plugin)
1018  : TitleStack<int>(parser, (plugin->config.style & BC_FONT_BOLD) ? 1 : 0)
1019 {
1020 }
1021 TitleCurItalic::TitleCurItalic(TitleParser *parser, TitleMain *plugin)
1022  : TitleStack<int>(parser, (plugin->config.style & BC_FONT_ITALIC) ? 1 : 0)
1023 {
1024 }
1025 TitleCurFont::TitleCurFont(TitleParser *parser, TitleMain *plugin)
1026  : TitleStack<BC_FontEntry*>(parser, plugin->config_font())
1027 {
1028 }
1029 TitleCurCaps::TitleCurCaps(TitleParser *parser, TitleMain *plugin)
1030  : TitleStack<int>(parser, 0)
1031 {
1032 }
1033 TitleCurUnder::TitleCurUnder(TitleParser *parser, TitleMain *plugin)
1034  : TitleStack<int>(parser, 0)
1035 {
1036 }
1037 TitleCurBlink::TitleCurBlink(TitleParser *parser, TitleMain *plugin)
1038  : TitleStack<float>(parser, 0)
1039 {
1040 }
1041 TitleCurFixed::TitleCurFixed(TitleParser *parser, TitleMain *plugin)
1042  : TitleStack<int>(parser, 0)
1043 {
1044 }
1045 TitleCurSuper::TitleCurSuper(TitleParser *parser, TitleMain *plugin)
1046  : TitleStack<int>(parser, 0)
1047 {
1048 }
1049
1050 TitleParser::TitleParser(TitleMain *plugin)
1051  : plugin(plugin),
1052    cur_nudge(this, plugin),
1053    cur_color(this, plugin),
1054    cur_alpha(this, plugin),
1055    cur_size(this, plugin),
1056    cur_bold(this, plugin),
1057    cur_italic(this, plugin),
1058    cur_font(this, plugin),
1059    cur_caps(this, plugin),
1060    cur_under(this, plugin),
1061    cur_blink(this, plugin),
1062    cur_fixed(this, plugin),
1063    cur_super(this, plugin)
1064 {
1065         bfr = out = plugin->config.wtext;
1066         lmt = bfr + plugin->config.wlen;
1067 }
1068
1069 TitleMain::TitleMain(PluginServer *server)
1070  : PluginVClient(server)
1071 {
1072         text_mask = 0;
1073         stroke_mask = 0;
1074         outline_mask = 0;
1075         glyph_engine = 0;
1076         title_engine = 0;
1077         translate = 0;
1078         outline_engine = 0;
1079         freetype_library = 0;
1080         freetype_face = 0;
1081         text_font[0] = 0;
1082         window_w = window_h = 0;
1083         title_x = title_y = 0;
1084         title_w = title_h = 0;
1085         text_w = text_h = 0;
1086         text_x = text_y = 0;  mask_w = mask_h = 0;
1087         mask_x1 = mask_y1 = mask_x2 = mask_y2 = 0;
1088         text_rows = 0;
1089         visible_row1 = visible_char1 = 0;
1090         visible_row2 = visible_char2 = 0;
1091         fade = 1;
1092         input = 0; output = 0;
1093         output_model = BC_RGBA8888;
1094         mask_model = BC_RGBA8888;
1095         background = 0; bg_file = 0; bg_frame = 0;
1096         render_engine = 0;  video_cache = 0;
1097         overlay_frame = 0;
1098         cpus = PluginClient::smp + 1;
1099         if( cpus > 8 ) cpus = 8;
1100         last_position = -1;
1101         need_reconfigure = 1;
1102 }
1103
1104 TitleMain::~TitleMain()
1105 {
1106         if( background ) {
1107                 background->Garbage::remove_user();
1108                 background = 0;
1109         }
1110         delete render_engine;
1111         delete video_cache;
1112         delete overlay_frame;
1113         delete bg_file;
1114         delete bg_frame;
1115         delete text_mask;
1116         delete outline_mask;
1117         delete stroke_mask;
1118         delete glyph_engine;
1119         delete title_engine;
1120         if( freetype_face )
1121                 FT_Done_Face(freetype_face);
1122         if( freetype_library )
1123                 FT_Done_FreeType(freetype_library);
1124         delete translate;
1125         delete outline_engine;
1126 }
1127
1128 const char* TitleMain::plugin_title() { return _("Title"); }
1129 int TitleMain::is_realtime() { return 1; }
1130 int TitleMain::is_synthesis() { return 1; }
1131
1132 NEW_WINDOW_MACRO(TitleMain, TitleWindow);
1133
1134
1135 void TitleMain::build_previews(TitleWindow *gui)
1136 {
1137         ArrayList<BC_FontEntry*>&fonts = *gui->get_resources()->fontlist;
1138
1139         for( int font_number=0; font_number<fonts.size(); ++font_number ) {
1140                 BC_FontEntry *font = fonts.get(font_number);
1141 // already have examples
1142                 if( font->image ) return;
1143         }
1144
1145 // create example bitmaps
1146         FT_Library freetype_library = 0;        // Freetype library
1147         FT_Face freetype_face = 0;
1148         const char *test_string = "Aa";
1149         char new_path[BCTEXTLEN];
1150         int text_height = gui->get_text_height(LARGEFONT);
1151         int max_height = 3*text_height/2, max_width = 2 * max_height;
1152         int text_color = BC_WindowBase::get_resources()->default_text_color;
1153         int r = (text_color >> 16) & 0xff;
1154         int g = (text_color >> 8) & 0xff;
1155         int b = text_color & 0xff;
1156 // dimensions for each line
1157         int height[fonts.size()];
1158         int ascent[fonts.size()];
1159
1160 // pass 1 gets the extents for all the fonts
1161 // pass 2 draws the image
1162         int total_w = 0;
1163         int total_h = 0;
1164         for( int pass=0; pass<2; ++pass ) {
1165 //printf("TitleMain::build_previews %d %d %d\n",
1166 //__LINE__, text_height, total_h);
1167                 for( int font_number=0; font_number<fonts.size(); ++font_number ) {
1168                         BC_FontEntry *font = fonts[font_number];
1169 // test if font of same name has been processed
1170                         int skip = 0;
1171                         for( int i=0; i<font_number; ++i ) {
1172                                 if( !strcasecmp(fonts[i]->displayname, font->displayname) ) {
1173                                         if( pass == 1 ) {
1174                                                 font->image = fonts[i]->image;
1175                                         }
1176                                         skip = 1;
1177                                         break;
1178                                 }
1179                         }
1180
1181                         if( skip ) continue;
1182                         if( pass > 0 ) {
1183                                 font->image = new VFrame;
1184                                 font->image->set_use_shm(0);
1185                                 font->image->reallocate(0, -1, 0, 0, 0,
1186                                         total_w, total_h, BC_RGBA8888, -1);
1187                                 font->image->clear_frame();
1188                         }
1189
1190                         int current_w = 1, current_h = 1;
1191                         int current_x = 0, current_ascent = 0;
1192                         int len = strlen(test_string);
1193
1194                         for( int j=0; j<len; ++j ) {
1195                                 FT_ULong c = test_string[j];
1196 // memory leaks here are fatal
1197 //                              check_char_code_path(freetype_library,
1198 //                                      font->path,
1199 //                                      c,
1200 //                                      (char *)new_path);
1201                                 strcpy(new_path, font->path);
1202                                 if( load_freetype_face(freetype_library, freetype_face, new_path)) continue;
1203                                 FT_Set_Pixel_Sizes(freetype_face, text_height, 0);
1204                                 if( FT_Load_Char(freetype_face, c, FT_LOAD_RENDER) ) continue;
1205                                 int glyph_w = freetype_face->glyph->bitmap.width;
1206                                 int glyph_h = freetype_face->glyph->bitmap.rows;
1207                                 if( glyph_h > max_height ) glyph_h = max_height;
1208                                 int glyph_a = freetype_face->glyph->advance.x >> 6;
1209                                 int glyph_t = freetype_face->glyph->bitmap_top;
1210                                 if( pass == 0 ) {
1211                                         current_w = current_x + glyph_w;
1212                                         if( current_w > max_width ) current_w = max_width;
1213                                         if( total_w < current_w ) total_w = current_w;
1214                                         if( current_ascent < glyph_t ) current_ascent = glyph_t;
1215                                         if( current_h < glyph_h ) current_h = glyph_h;
1216                                         if( total_h < glyph_h ) total_h = glyph_h;
1217                                 }
1218                                 else {
1219 // copy 1 row at a time, center vertically
1220                                         int out_y = (total_h-height[font_number])/2 + ascent[font_number]-glyph_t;
1221                                         if( out_y < 0 ) out_y = 0;
1222                                         for( int in_y = 0; in_y < glyph_h && out_y < total_h; ++in_y, ++out_y ) {
1223                                                 unsigned char *in_row = freetype_face->glyph->bitmap.buffer +
1224                                                         freetype_face->glyph->bitmap.pitch * in_y;
1225                                                 int out_x = current_x;
1226                                                 unsigned char *out_row = font->image->get_rows()[out_y] +
1227                                                         out_x * 4;
1228
1229                                                 for( int in_x = 0; in_x < glyph_w && out_x < total_w; ++in_x, ++out_x ) {
1230                                                         *out_row = (*in_row * r +
1231                                                                 (0xff - *in_row) * *out_row) / 0xff; ++out_row;
1232                                                         *out_row = (*in_row * g +
1233                                                                 (0xff - *in_row) * *out_row) / 0xff; ++out_row;
1234                                                         *out_row = (*in_row * b +
1235                                                                 (0xff - *in_row) * *out_row) / 0xff; ++out_row;
1236                                                         *out_row = MAX(*in_row, *out_row);  ++out_row;
1237                                                         in_row++;
1238                                                 }
1239                                         }
1240                                 }
1241                                 current_x += glyph_a;
1242                         }
1243                         height[font_number] = current_h;
1244                         ascent[font_number] = current_ascent;
1245                 }
1246         }
1247
1248         if( freetype_library ) FT_Done_FreeType(freetype_library);
1249 }
1250
1251
1252 //This checks if char_code is on the selected font, else it changes font to the first compatible //Akirad
1253 int TitleMain::check_char_code_path(FT_Library &freetype_library,
1254         char *path_old, FT_ULong &char_code, char *path_new)
1255 {
1256         FT_Face temp_freetype_face;
1257         FcPattern *pat;
1258         FcFontSet *fs;
1259         FcObjectSet *os;
1260         FcChar8 *file, *format;
1261         FcConfig *config;
1262         FcPattern *font;
1263
1264         FcInit();
1265         config = FcConfigGetCurrent();
1266         FcConfigSetRescanInterval(config, 0);
1267
1268         pat = FcPatternCreate();
1269         os = FcObjectSetBuild ( FC_FILE, FC_FONTFORMAT, (char *) 0);
1270         fs = FcFontList(config, pat, os);
1271         int found = 0;
1272         char tmpstring[BCTEXTLEN];
1273         int limit_to_truetype = 0; //if you want to limit search to truetype put 1
1274         if( !freetype_library ) FT_Init_FreeType(&freetype_library);
1275         if( !FT_New_Face(freetype_library, path_old, 0, &temp_freetype_face) ) {
1276                 FT_Set_Pixel_Sizes(temp_freetype_face, 128, 0);
1277                 int gindex = FT_Get_Char_Index(temp_freetype_face, char_code);
1278                 if( gindex != 0 && char_code == 10 ) {
1279                         strcpy(path_new, path_old);
1280                         found = 1;
1281                 }
1282         }
1283
1284         if( !found ) {
1285                 for( int i=0; fs && i<fs->nfont; ++i ) {
1286                         font = fs->fonts[i];
1287                         FcPatternGetString(font, FC_FONTFORMAT, 0, &format);
1288                         if( strcmp((char *)format, "TrueType") && !limit_to_truetype ) continue;
1289                         if( FcPatternGetString(font, FC_FILE, 0, &file) != FcResultMatch ) continue;
1290                         sprintf(tmpstring, "%s", file);
1291                         if( !FT_New_Face(freetype_library, tmpstring, 0, &temp_freetype_face) ) continue;
1292                         FT_Set_Pixel_Sizes(temp_freetype_face, 128, 0);
1293                         int gindex = FT_Get_Char_Index(temp_freetype_face, char_code);
1294                         if( gindex != 0 && char_code == 10 ) {
1295                                 sprintf(path_new, "%s", tmpstring);
1296                                 found = 1;
1297                                 goto done;
1298                         }
1299                 }
1300         }
1301
1302 done:
1303         if( fs ) FcFontSetDestroy(fs);
1304         if( temp_freetype_face ) FT_Done_Face(temp_freetype_face);
1305         temp_freetype_face = 0;
1306
1307         if( !found ) {
1308                 strcpy(path_new, path_old);
1309                 return 1;
1310         }
1311
1312         return 0;
1313 }
1314
1315
1316 int TitleMain::load_freetype_face(FT_Library &freetype_library,
1317         FT_Face &freetype_face, const char *path)
1318 {
1319 //printf("TitleMain::load_freetype_face 1\n");
1320         if( !freetype_library )
1321                 FT_Init_FreeType(&freetype_library);
1322         if( freetype_face )
1323                 FT_Done_Face(freetype_face);
1324         freetype_face = 0;
1325 //printf("TitleMain::load_freetype_face 2\n");
1326
1327 // Use freetype's internal function for loading font
1328         if( FT_New_Face(freetype_library, path, 0, &freetype_face) ) {
1329                 fprintf(stderr, _("TitleMain::load_freetype_face %s failed.\n"), path);
1330                 freetype_face = 0;
1331                 freetype_library = 0;
1332                 return 1;
1333         }
1334         return 0;
1335 }
1336
1337 int TitleMain::load_font(BC_FontEntry *font)
1338 {
1339         if( load_freetype_face(freetype_library,freetype_face, font->path) ) return 1;
1340         strcpy(text_font, font->displayname);
1341         return 0;
1342 }
1343
1344
1345 Indexable *TitleMain::open_background(const char *filename)
1346 {
1347         delete render_engine;  render_engine = 0;
1348         delete video_cache;    video_cache = 0;
1349         delete bg_file;        bg_file = new File;
1350
1351         Asset *asset = new Asset(filename);
1352         int result = bg_file->open_file(server->preferences, asset, 1, 0);
1353         if( result == FILE_OK ) return (Indexable *)asset;
1354 // not asset
1355         asset->Garbage::remove_user();
1356         delete bg_file;   bg_file = 0;
1357         if( result != FILE_IS_XML ) return 0;
1358 // nested edl
1359         FileXML xml_file;
1360         if( xml_file.read_from_file(filename) ) return 0;
1361         EDL *nested_edl = new EDL;
1362         nested_edl->create_objects();
1363         nested_edl->set_path(filename);
1364         nested_edl->load_xml(&xml_file, LOAD_ALL);
1365         TransportCommand command;
1366         //command.command = audio_tracks ? NORMAL_FWD : CURRENT_FRAME;
1367         command.command = CURRENT_FRAME;
1368         command.get_edl()->copy_all(nested_edl);
1369         command.change_type = CHANGE_ALL;
1370         command.realtime = 0;
1371         render_engine = new RenderEngine(0, server->preferences, 0, 0);
1372         render_engine->set_vcache(video_cache = new CICache(server->preferences));
1373         render_engine->arm_command(&command);
1374         return (Indexable *)nested_edl;
1375 }
1376
1377 int TitleMain::read_background(VFrame *frame, int64_t position, int color_model)
1378 {
1379         int result = 1;
1380         VFrame *iframe = frame;
1381         int bw = background->get_w(), bh = background->get_h();
1382         if( background->is_asset ) {
1383                 Asset *asset = (Asset *)background;
1384                 if( bw != asset->width || bh != asset->height )
1385                         iframe = new_temp(asset->width, asset->height, color_model);
1386                 int64_t source_position = (int64_t)(position *
1387                         asset->frame_rate / project_frame_rate);
1388                 if( config.loop_playback ) {
1389                         int64_t loop_size = asset->get_video_frames();
1390                         source_position -= (int64_t)(source_position / loop_size) * loop_size;
1391                 }
1392                 if( bg_file ) {
1393                         bg_file->set_video_position(source_position, 0);
1394                         result = bg_file->read_frame(iframe);
1395                 }
1396         }
1397         else {
1398                 EDL *nested_edl = (EDL *)background;
1399                 if( color_model != nested_edl->session->color_model ||
1400                     bw != nested_edl->session->output_w ||
1401                     bh != nested_edl->session->output_h )
1402                         iframe = new_temp(
1403                                 nested_edl->session->output_w,
1404                                 nested_edl->session->output_h,
1405                                 nested_edl->session->color_model);
1406                 int64_t source_position = (int64_t)(position *
1407                         nested_edl->session->frame_rate / project_frame_rate);
1408                 if( config.loop_playback ) {
1409                         int64_t loop_size = nested_edl->get_video_frames();
1410                         source_position -= (int64_t)(source_position / loop_size) * loop_size;
1411                 }
1412                 if( render_engine->vrender )
1413                         result = render_engine->vrender->process_buffer(iframe, source_position, 0);
1414         }
1415         if( !result && iframe != frame )
1416                 frame->transfer_from(iframe);
1417         return result;
1418 }
1419
1420 void TitleMain::draw_background()
1421 {
1422         if( background ) {
1423                 if( strcmp(background->path, config.background_path) ) {
1424                         if( background ) {
1425                                 background->Garbage::remove_user();
1426                                 background = 0;
1427                         }
1428                         if( bg_file ) {
1429                                 delete bg_file;
1430                                 bg_file = 0;
1431                         }
1432                 }
1433         }
1434         if( !background && config.background_path[0] && !access(config.background_path,R_OK) )
1435                 background = open_background(config.background_path);
1436         if( background ) {
1437                 int bw = background->get_w(), bh = background->get_h();
1438                 if( bg_frame && (bg_frame->get_w() != bw || bg_frame->get_h() != bh ||
1439                     bg_frame->get_color_model() != output_model) ) {
1440                         delete bg_frame;  bg_frame = 0;
1441                 }
1442                 if( !bg_frame )
1443                         bg_frame = new VFrame(0, -1, bw, bh, output_model, -1);
1444                 int64_t position = get_source_position() - get_source_start();
1445                 if( !read_background(bg_frame, position, output_model) ) {
1446                         if( !overlay_frame )
1447                                 overlay_frame = new OverlayFrame(cpus);
1448                         float in_x1 = 0, in_x2 = bg_frame->get_w();
1449                         float in_y1 = 0, in_y2 = bg_frame->get_h();
1450                         float out_x1 = config.title_x, out_x2 = out_x1 + title_w;
1451                         float out_y1 = config.title_y, out_y2 = out_y1 + title_h;
1452                         overlay_frame->overlay(output, bg_frame,
1453                                 in_x1,in_y1, in_x2,in_y2,
1454                                 out_x1,out_y1, out_x2,out_y2,
1455                                 1, TRANSFER_NORMAL, CUBIC_LINEAR);
1456                 }
1457         }
1458 }
1459
1460 BC_FontEntry* TitleMain::get_font(const char *font_name, int style)
1461 {
1462         if( !strcmp("fixed", font_name) )
1463                 font_name = FIXED_FONT;
1464         int flavor =
1465             ((style & BC_FONT_ITALIC) != 0 ? FL_SLANT_ITALIC | FL_SLANT_OBLIQUE : FL_SLANT_ROMAN) |
1466             ((style & BC_FONT_BOLD) != 0 ? FL_WEIGHT_BOLD | FL_WEIGHT_DEMIBOLD |
1467                         FL_WEIGHT_EXTRABOLD| FL_WEIGHT_BLACK | FL_WEIGHT_EXTRABLACK :
1468                         FL_WEIGHT_BOOK | FL_WEIGHT_NORMAL | FL_WEIGHT_MEDIUM |
1469                         FL_WEIGHT_LIGHT | FL_WEIGHT_EXTRALIGHT | FL_WEIGHT_THIN);
1470
1471         int mask = FL_WEIGHT_MASK | FL_SLANT_MASK;
1472
1473         BC_Resources *resources =  BC_WindowBase::get_resources();
1474         return resources->find_fontentry(font_name, flavor, mask, style);
1475 }
1476 BC_FontEntry* TitleMain::config_font()
1477 {
1478         BC_FontEntry *font = get_font(config.font, config.style);
1479         if( font && load_font(font) )
1480                 font = get_font(FIXED_FONT,0);
1481         return font;
1482 }
1483
1484
1485 static inline bool is_ltr(wchar_t wch) { return (wch>='a' && wch<='z') || (wch>='A' && wch<='Z'); }
1486 static inline bool is_nbr(wchar_t wch) { return (wch>='0' && wch<='9'); }
1487 static inline bool is_ws(wchar_t wch) { return wch==' ' || wch=='\t'; }
1488 static inline bool is_idch(wchar_t wch) { return is_ltr(wch) || is_nbr(wch) || wch=='_'; }
1489
1490 // return eof=-1, chr=0, opener=1, closer=2
1491 int TitleParser::wget(wchar_t &wch)
1492 {
1493         char *ip = id, *tp = text;  *ip = 0;  *tp = 0;
1494         int ilen = sizeof(id), tlen = sizeof(text), ich;
1495         while( (ich=wnext()) >= 0 ) {
1496                 if( ich == '\\' ) {
1497                         if( (ich=wnext()) == '\n' ) continue;
1498                         wch = ich;
1499                         return 0;
1500                 }
1501                 if( ich == '<' ) break;
1502                 if( ich != '#' ) { wch = ich;  return 0; }
1503                 while( (ich=wnext()) >= 0 && ich != '\n' );
1504                 if( ich < 0 ) break;
1505         }
1506         if( ich < 0 ) return -1;
1507         int ret = 1;  long pos = tell();
1508         if( (ich=wnext()) == '/' ) { ret = 2; ich = wnext(); }
1509         if( is_ltr(ich) ) {
1510                 *ip++ = ich;
1511                 while( is_idch(ich=wnext()) )
1512                         if( --ilen > 0 ) *ip++ = ich;
1513         }
1514         *ip = 0;
1515         while( is_ws(ich) ) ich = wnext();
1516         while( ich >= 0 && ich != '>' ) {
1517                 if( ich == '\n' || ich == '<' ) { ich = -1;  break; }
1518                 if( ich == '\\' && (ich=wnext()) < 0 ) break;
1519                 if( --tlen > 0 ) *tp++ = ich;
1520                 ich = wnext();
1521         }
1522         *tp = 0;
1523         if( ich < 0 ) { ich = '<';  seek(pos);  ret = 0; }
1524         wch = ich;
1525         return ret;
1526 }
1527
1528 TitleGlyph *TitleMain::get_glyph(FT_ULong char_code, BC_FontEntry *font, int size, int style)
1529 {
1530         for( int i=0, n=title_glyphs.count(); i<n; ++i ) {
1531                 TitleGlyph *glyph = title_glyphs[i];
1532                 if( glyph->char_code == char_code && glyph->font == font &&
1533                     glyph->size == size && glyph->style == style )
1534                         return glyph;
1535         }
1536         return 0;
1537 }
1538
1539 int TitleMain::get_width(TitleGlyph *cur, TitleGlyph *nxt)
1540 {
1541         if( !cur || cur->char_code == '\n' ) return 0;
1542         int result = cur->advance_x;
1543         if( !nxt ) return result;
1544         FT_Vector kerning;
1545         if( !FT_Get_Kerning(freetype_face,
1546             cur->freetype_index, nxt->freetype_index,
1547             ft_kerning_default, &kerning) )
1548                 result += (kerning.x >> 6);
1549         return result;
1550 }
1551
1552
1553 VFrame *TitleMain::get_image(const char *path)
1554 {
1555         for( int i=0; i<title_images.count(); ++i ) {
1556                 if( !strcmp(path, title_images[i]->path) )
1557                         return title_images[i]->vframe;
1558         }
1559         return 0;
1560 }
1561
1562 VFrame *TitleMain::add_image(const char *path)
1563 {
1564         VFrame *vframe = get_image(path);
1565         if( !vframe && (vframe=VFramePng::vframe_png(path)) != 0 ) {
1566                 if( vframe->get_color_model() != text_model ) {
1567                         VFrame *frame = new VFrame(vframe->get_w(), vframe->get_h(), text_model);
1568                         frame->transfer_from(vframe);  delete vframe;
1569                         vframe = frame;
1570                 }
1571                 title_images.append(new TitleImage(path, vframe));
1572         }
1573         return vframe;
1574 }
1575
1576 int TitleCurColor::set(const char *txt)
1577 {
1578 #define BCOLOR(NM) { #NM, NM }
1579         static const struct { const char *name; int color; } colors[] = {
1580                 BCOLOR(MNBLUE),  BCOLOR(ORANGE),  BCOLOR(BLOND),
1581                 BCOLOR(MNGREY),  BCOLOR(FGGREY),  BCOLOR(FTGREY),   BCOLOR(DKGREY),
1582                 BCOLOR(LTGREY),  BCOLOR(MEGREY),  BCOLOR(DMGREY),   BCOLOR(MDGREY),
1583                 BCOLOR(LTPURPLE),BCOLOR(MEPURPLE),BCOLOR(MDPURPLE), BCOLOR(DKPURPLE),
1584                 BCOLOR(LTCYAN),  BCOLOR(MECYAN),  BCOLOR(MDCYAN),   BCOLOR(DKCYAN),
1585                 BCOLOR(YELLOW),  BCOLOR(LTYELLOW),BCOLOR(MEYELLOW), BCOLOR(MDYELLOW),
1586                 BCOLOR(LTGREEN), BCOLOR(DKGREEN), BCOLOR(DKYELLOW), BCOLOR(LTPINK),
1587                 BCOLOR(PINK),    BCOLOR(LTBLUE),  BCOLOR(DKBLUE),
1588                 BCOLOR(RED),     BCOLOR(GREEN),   BCOLOR(BLUE),
1589                 BCOLOR(BLACK),   BCOLOR(WHITE),
1590         };
1591         int color;
1592         if( *txt ) {
1593                 if( txt[0] == '#' ) {
1594                         if( sscanf(&txt[1], "%x", &color) != 1 ) return 1;
1595                 }
1596                 else {
1597                         int i = sizeof(colors)/sizeof(colors[0]);
1598                         while( --i >= 0 && strcasecmp(txt, colors[i].name) );
1599                         if( i < 0 ) return 1;
1600                         color = colors[i].color;
1601                 }
1602         }
1603         else
1604                 color = parser->plugin->config.color;
1605         push(color);
1606         return 0;
1607 }
1608
1609 int TitleCurAlpha::set(const char *txt)
1610 {
1611         float a = !*txt ?
1612                 parser->plugin->config.alpha :
1613                 strtof(txt,(char**)&txt) * 255;
1614         int alpha = a;
1615         if( *txt || alpha < 0 || alpha > 255 ) return 1;
1616         push(alpha);
1617         return 0;
1618 }
1619
1620 int TitleCurSize::set(const char *txt)
1621 {
1622         float size = 0;
1623         if( !*txt ) {
1624                 size = parser->plugin->config.size;
1625         }
1626         else if( *txt == '+' || *txt == '-' ) {
1627                 size = *this;
1628                 for( int ch; (ch=*txt)!=0; ++txt ) {
1629                         if( ch == '+' ) { size *= 5./4.; continue; }
1630                         if( ch == '-' ) { size *= 4./5.; continue; }
1631                         return 1;
1632                 }
1633         }
1634         else {
1635                 size = strtof(txt,(char**)&txt);
1636         }
1637         if( *txt || size <= 0 || size > 2048 ) return 1;
1638         int style = parser->cur_font.style();
1639         if( !parser->cur_font.set(0,style) ) return 1;
1640         push(size);
1641         return 0;
1642 }
1643 int TitleCurSize::unset(const char *txt)
1644 {
1645         if( pop() ) return 1;
1646         int style = parser->cur_font.style();
1647         parser->cur_font.set(0,style);
1648         return 0;
1649 }
1650
1651
1652 int TitleCurBold::set(const char *txt)
1653 {
1654         int bold = !*txt ? 1 :
1655                 strtol(txt,(char**)&txt,0);
1656         if( *txt || bold < 0 || bold > 1 ) return 1;
1657         int style = parser->cur_font.style();
1658         if( bold ) style |= BC_FONT_BOLD;
1659         else style &= ~BC_FONT_BOLD;
1660         if( !parser->cur_font.set(0,style) ) return 1;
1661         push(bold);
1662         return 0;
1663 }
1664 int TitleCurBold::unset(const char *txt)
1665 {
1666         if( pop() ) return 1;
1667         int style = parser->cur_font.style();
1668         parser->cur_font.set(0,style);
1669         return 0;
1670 }
1671
1672 int TitleCurItalic::set(const char *txt)
1673 {
1674         int italic = !*txt ? 1 :
1675                 strtol(txt,(char**)&txt,0);
1676         if( *txt || italic < 0 || italic > 1 ) return 1;
1677         int style = parser->cur_font.style();
1678         if( italic ) style |= BC_FONT_ITALIC;
1679         else style &= ~BC_FONT_ITALIC;
1680         if( !parser->cur_font.set(0,style) ) return 1;
1681         push(italic);
1682         return 0;
1683 }
1684 int TitleCurItalic::unset(const char *txt)
1685 {
1686         if( pop() ) return 1;
1687         int style = parser->cur_font.style();
1688         parser->cur_font.set(0,style);
1689         return 0;
1690 }
1691
1692
1693 int TitleCurFont::style()
1694 {
1695         int style = 0;
1696         if( parser->cur_bold ) style |= BC_FONT_BOLD;
1697         if( parser->cur_italic ) style |= BC_FONT_ITALIC;
1698         return style;
1699 }
1700 BC_FontEntry* TitleCurFont::get(const char *txt, int style)
1701 {
1702         if( !txt ) txt = parser->plugin->text_font;
1703         else if( !*txt ) txt = parser->plugin->config.font;
1704         return parser->plugin->get_font(txt, style);
1705 }
1706 BC_FontEntry *TitleCurFont::set(const char *txt, int style)
1707 {
1708         BC_FontEntry *font = get(txt, style);
1709         if( !font || parser->plugin->load_font(font) ) return 0;
1710         if( !txt ) (BC_FontEntry*&)*this = font;
1711         return font;
1712 }
1713 int TitleCurFont::set(const char *txt)
1714 {
1715         BC_FontEntry *font = set(txt, style());
1716         if( !font ) return 1;
1717         push(font);
1718         return 0;
1719 }
1720 int TitleCurFont::unset(const char *txt)
1721 {
1722         if( *txt || pop() ) return 1;
1723         BC_FontEntry *font = *this;
1724         if( !font ) return 1;
1725         font = get(font->displayname, style());
1726         if( !font ) return 1;
1727         (BC_FontEntry*&)*this = font;
1728         return 0;
1729 }
1730
1731 int TitleCurCaps::set(const char *txt)
1732 {
1733         int caps = !*txt ? 1 : strtol(txt,(char **)&txt,0);
1734         if( *txt || caps < -1 || caps > 1 ) return 1;
1735         push(caps);
1736         return 0;
1737 }
1738
1739 int TitleCurBlink::set(const char *txt)
1740 {
1741         float blink = !*txt ? 1 : strtof(txt,(char **)&txt);
1742         if( *txt ) return 1;
1743         push(blink);
1744         return 0;
1745 }
1746
1747 int TitleCurFixed::set(const char *txt)
1748 {
1749         int fixed = !*txt ?
1750                 parser->cur_size*3/4 :
1751                 strtol(txt,(char **)&txt,0);
1752         if( *txt || fixed < 0 ) return 1;
1753         push(fixed);
1754         return 0;
1755 }
1756
1757 int TitleCurSuper::set(const char *txt)
1758 {
1759         int super = !*txt ? 1 : strtol(txt,(char **)&txt,0);
1760         if( *txt || super < -1 || super > 1 ) return 1;
1761         push(super);
1762         return 0;
1763 }
1764
1765 int TitleCurNudge::set(const char *txt)
1766 {
1767         if( !*txt ) return 1;
1768         short nx = strtol(txt,(char **)&txt,0);
1769         if( *txt++ != ',' ) return 1;
1770         short ny = strtol(txt,(char **)&txt,0);
1771         if( *txt ) return 1;
1772         int nudge = (nx << 16) | (ny & 0xffff);
1773         push(nudge);
1774         return 0;
1775 }
1776
1777 int TitleParser::set_attributes(int ret)
1778 {
1779         if( !strcmp(id,_("nudge")) )  return ret>1 ? cur_nudge.unset(text)  : cur_nudge.set(text);
1780         if( !strcmp(id,_("color")) )  return ret>1 ? cur_color.unset(text)  : cur_color.set(text);
1781         if( !strcmp(id,_("alpha")) )  return ret>1 ? cur_alpha.unset(text)  : cur_alpha.set(text);
1782         if( !strcmp(id,_("font")) )   return ret>1 ? cur_font.unset(text)   : cur_font.set(text);
1783         if( !strcmp(id,_("size")) )   return ret>1 ? cur_size.unset(text)   : cur_size.set(text);
1784         if( !strcmp(id,_("bold")) )   return ret>1 ? cur_bold.unset(text)   : cur_bold.set(text);
1785         if( !strcmp(id,_("italic")) ) return ret>1 ? cur_italic.unset(text) : cur_italic.set(text);
1786         if( !strcmp(id,_("caps")) )   return ret>1 ? cur_caps.unset(text)   : cur_caps.set(text);
1787         if( !strcmp(id,_("ul")) )     return ret>1 ? cur_under.unset(text)  : cur_under.set(text);
1788         if( !strcmp(id,_("blink")) )  return ret>1 ? cur_blink.unset(text)  : cur_blink.set(text);
1789         if( !strcmp(id,_("fixed")) )  return ret>1 ? cur_fixed.unset(text)  : cur_fixed.set(text);
1790         if( !strcmp(id,_("sup")) )    return ret>1 ? cur_super.unset(text)  : cur_super.set(text);
1791         return 1;
1792 }
1793
1794
1795 void TitleMain::load_glyphs()
1796 {
1797 // Build table of all glyphs needed
1798         TitleParser wchrs(this);
1799         int total_packages = 0;
1800
1801         while( !wchrs.eof() ) {
1802                 wchar_t wch1 = wchrs.wcur(), wch;
1803                 long ipos = wchrs.tell();
1804                 int ret = wchrs.wget(wch);
1805                 if( ret > 0 ) {
1806                         if( !wchrs.set_attributes(ret) ) continue;
1807                         if( !strcmp(wchrs.id,"png") && add_image(wchrs.text) ) continue;
1808                         wch = wch1;  wchrs.seek(ipos+1);
1809                         ret = 0;
1810                 }
1811                 if( !ret ) {
1812                         int cur_caps = wchrs.cur_caps;
1813                         if( cur_caps > 0 ) wch = towupper(wch);
1814                         else if( cur_caps < 0 ) wch = towlower(wch);
1815                         BC_FontEntry *cur_font = wchrs.cur_font;
1816                         int cur_size = wchrs.cur_size;
1817                         int cur_style = 0;
1818                         int cur_bold  = wchrs.cur_bold;
1819                         if( cur_bold ) cur_style |= BC_FONT_BOLD;
1820                         int cur_italic  = wchrs.cur_italic;
1821                         if( cur_italic ) cur_style |= BC_FONT_ITALIC;
1822                         int cur_super = wchrs.cur_super;
1823                         if( cur_super ) cur_size /= 2;
1824                         int exists = 0;
1825                         for( int j=0; j<title_glyphs.count(); ++j ) {
1826                                 TitleGlyph *glyph = title_glyphs[j];
1827                                 if( glyph->char_code == (FT_ULong)wch && glyph->font == cur_font &&
1828                                     glyph->size == cur_size && glyph->style == cur_style ) {
1829                                         exists = 1;   break;
1830                                 }
1831                         }
1832
1833                         if( !exists && cur_font ) {
1834                                 total_packages++;
1835                                 TitleGlyph *glyph = new TitleGlyph;
1836                                 glyph->char_code = (FT_ULong)wch;
1837                                 glyph->font = cur_font;
1838                                 glyph->size = cur_size;
1839                                 glyph->style = cur_style;
1840                                 title_glyphs.append(glyph);
1841                         }
1842                 }
1843         }
1844
1845         if( !glyph_engine )
1846                 glyph_engine = new GlyphEngine(this, cpus);
1847
1848         glyph_engine->set_package_count(total_packages);
1849         glyph_engine->process_packages();
1850 }
1851
1852
1853 TitleImage::TitleImage(const char *path, VFrame *vfrm)
1854 {
1855         this->path = cstrdup(path);
1856         this->vframe = vfrm;
1857 }
1858 TitleImage::~TitleImage()
1859 {
1860         delete [] path;
1861         delete vframe;
1862 }
1863
1864 TitleChar *TitleChar::init(int typ, void *vp)
1865 {
1866         wch = 0;
1867         flags = 0;
1868         this->typ = typ;
1869         this->vp = vp;
1870         x = y = 0;
1871         row = dx = 0;
1872         blink = 0.;
1873         size = 0.;
1874         color = BLACK;
1875         alpha = 0xff;
1876         fade = 1;
1877         return this;
1878 }
1879
1880 TitleRow *TitleRow::init()
1881 {
1882         x0 = y0 = 0;
1883         x1 = y2 = 0; //MAX_FLT;
1884         y1 = x2 = 0; //MIN_FLT;
1885         return this;
1886 }
1887
1888 int TitleMain::get_text()
1889 {
1890 // Determine extents of total text
1891         title_chars.reset();
1892         title_rows.reset();
1893         int pitch = config.line_pitch;
1894         float font_h = config.size;
1895         int descent = 0;
1896
1897         TitleParser wchrs(this);
1898
1899         TitleRow *row = 0;
1900         float row_w = 0, row_h = 0;
1901         float row_x = 0, row_y = 0;
1902         text_rows = 0;
1903
1904         for(;;) {
1905                 if( !row ) row = title_rows.add();
1906                 TitleChar *chr = 0;
1907                 long ipos = wchrs.tell();
1908                 wchar_t wch1 = wchrs.wcur(), wch;
1909                 int ret = wchrs.wget(wch);
1910                 if( ret < 0 || wch == '\n' ) {
1911                         if( row->x1 > row->x2 ) row->x1 = row->x2 = 0;
1912                         if( row->y2 > row->y1 ) row->y1 = row->y2 = 0;
1913                         int dy = row->y1 - descent;
1914                         row_y += pitch ? pitch : dy > font_h ? dy : font_h;
1915                         row->y0 = row_y;
1916                         descent = row->y2;
1917                         if( row_x > row_w ) row_w = row_x;
1918                         if( row_y > row_h ) row_h = row_y;
1919                         text_rows = title_rows.count();
1920                         row_x = 0;  row = 0;
1921                         if( ret < 0 ) break;
1922                         continue;
1923                 }
1924                 BC_FontEntry *cur_font = wchrs.cur_font;
1925                 int cur_color   = wchrs.cur_color;
1926                 int cur_alpha   = wchrs.cur_alpha;
1927                 float cur_size  = wchrs.cur_size;
1928                 int cur_caps    = wchrs.cur_caps;
1929                 int cur_under   = wchrs.cur_under;
1930                 float cur_blink = wchrs.cur_blink;
1931                 int cur_fixed   = wchrs.cur_fixed;
1932                 int cur_super   = wchrs.cur_super;
1933                 int cur_nudge   = wchrs.cur_nudge;
1934                 int cur_style = 0;
1935                 int cur_bold  = wchrs.cur_bold;
1936                 if( cur_bold ) cur_style |= BC_FONT_BOLD;
1937                 int cur_italic  = wchrs.cur_italic;
1938                 if( cur_italic ) cur_style |= BC_FONT_ITALIC;
1939                 short nx = cur_nudge >> 16, ny = cur_nudge;
1940                 int cx = nx, cy = ny, cw = 0, ch = 0, dx = 0;
1941                 if( ret > 0 ) {
1942                         if( !wchrs.set_attributes(ret) ) continue;
1943                         ret = -1;
1944                         if( !strcmp(wchrs.id,"png") ) {
1945                                 VFrame *png_image = get_image(wchrs.text);
1946                                 if( png_image ) {
1947                                         chr = title_chars.add(CHAR_IMAGE, png_image);
1948                                         cy += ch = png_image->get_h();
1949                                         cw = dx = png_image->get_w();
1950                                         wch = 0;  ret = 0;
1951                                 }
1952                         }
1953                         if( ret < 0 ) {
1954                                 wch = wch1;  wchrs.seek(ipos+1);
1955                         }
1956                 }
1957                 if( wch ) {
1958                         if( cur_caps > 0 ) wch = towupper(wch);
1959                         else if( cur_caps < 0 ) wch = towlower(wch);
1960                         int size = !cur_super ? cur_size : cur_size/2;
1961                         TitleGlyph *gp = get_glyph(wch, cur_font, size, cur_style);
1962                         if( !gp ) continue;
1963
1964                         if( cur_super > 0 ) cy += cur_size-4*size/3;
1965                         else if( cur_super < 0 ) cy -= size/3;
1966
1967                         dx =  gp->advance_x;
1968
1969                         if( cur_fixed )
1970                                 dx = cur_fixed;
1971                         else if( !wchrs.eof() ) {
1972                                 TitleGlyph *np = get_glyph(wchrs.wcur(), cur_font, cur_size, cur_style);
1973                                 dx = get_width(gp, np);
1974                         }
1975
1976                         chr = title_chars.add(CHAR_GLYPH, gp);
1977                         cx += gp->left;
1978                         cy += gp->top;
1979                         cw = gp->right - gp->left;
1980                         ch = gp->top - gp->bottom;
1981                 }
1982
1983                 if( !chr ) continue;
1984                 chr->wch = wch;
1985                 chr->size  = cur_size;
1986                 chr->blink = cur_blink;
1987                 chr->color = cur_color;
1988                 chr->alpha = cur_alpha;
1989                 chr->fade = 1;
1990                 if( cur_fixed ) chr->flags |= FLAG_FIXED;
1991                 if( cur_super > 0 ) chr->flags |= FLAG_SUPER;
1992                 if( cur_super < 0 ) chr->flags |= FLAG_SUBER;
1993                 if( cur_under ) chr->flags |= FLAG_UNDER;
1994                 if( cur_blink ) chr->flags |= FLAG_BLINK;
1995                 chr->x = (cx += row_x);
1996                 chr->y = cy;
1997                 chr->dx = dx;
1998                 row->bound(cx,cy, cx+cw,cy-ch);
1999                 chr->row = text_rows;
2000                 row_x += chr->dx;
2001         }
2002
2003         if( !row_w || !row_h ) return 1;
2004
2005 // rows boundary, note: row->xy is y up (FT), row_xy is y down (X)
2006         text_x1 = text_y1 = MAX_FLT;
2007         text_x2 = text_y2 = MIN_FLT;
2008         for( int i=0; i<text_rows; ++i ) {
2009                 row = title_rows[i];
2010                 switch( config.hjustification ) {
2011                 case JUSTIFY_LEFT:   row->x0 = 0;  break;
2012                 case JUSTIFY_CENTER: row->x0 = (row_w - (row->x2-row->x1)) / 2;  break;
2013                 case JUSTIFY_RIGHT:  row->x0 = row_w - (row->x2-row->x1);  break;
2014                 }
2015                 float v;
2016                 if( text_x1 > (v=row->x0+row->x1) ) text_x1 = v;
2017                 if( text_y1 > (v=row->y0-row->y1) ) text_y1 = v;
2018                 if( text_x2 < (v=row->x0+row->x2) ) text_x2 = v;
2019                 if( text_y2 < (v=row->y0-row->y2) ) text_y2 = v;
2020         }
2021         if( text_x1 > text_x2 || text_y1 > text_y2 ) return 1;
2022         text_x1 += fuzz1;  text_y1 += fuzz1;
2023         text_x2 += fuzz2;  text_y2 += fuzz2;
2024         text_w = text_x2 - text_x1;
2025         text_h = text_y2 - text_y1;
2026         return 0;
2027 }
2028
2029 int TitleMain::get_visible_text()
2030 {
2031 // Determine y of visible text
2032         switch( config.motion_strategy ) {
2033         case BOTTOM_TO_TOP:
2034         case TOP_TO_BOTTOM: {
2035                 float magnitude = config.pixels_per_second *
2036                         (get_source_position() - config.prev_keyframe_position) /
2037                         PluginVClient::project_frame_rate;
2038                 if( config.loop ) {
2039                         int loop_size = text_h + title_h;
2040                         magnitude -= (int)(magnitude / loop_size) * loop_size;
2041                 }
2042                 text_y = config.motion_strategy == BOTTOM_TO_TOP ?
2043                         title_h - magnitude :
2044                         magnitude - text_h;
2045                 break; }
2046         default: switch( config.vjustification ) {
2047         case JUSTIFY_TOP:    text_y =  0;  break;
2048         case JUSTIFY_MID:    text_y = (title_h - text_h) / 2;  break;
2049         case JUSTIFY_BOTTOM: text_y =  title_h - text_h;  break;
2050         default: break; }
2051         }
2052
2053 // Determine x of visible text
2054         switch( config.motion_strategy ) {
2055         case RIGHT_TO_LEFT:
2056         case LEFT_TO_RIGHT: {
2057                 float magnitude = config.pixels_per_second *
2058                         (get_source_position() - config.prev_keyframe_position) /
2059                         PluginVClient::project_frame_rate;
2060                 if( config.loop ) {
2061                         int loop_size = text_w + title_w;
2062                         magnitude -= (int)(magnitude / loop_size) * loop_size;
2063                 }
2064                 text_x = config.motion_strategy == RIGHT_TO_LEFT ?
2065                         title_w - magnitude :
2066                         magnitude - text_w;
2067                 break; }
2068         default: switch ( config.hjustification ) {
2069         case JUSTIFY_LEFT:   text_x =  0;  break;
2070         case JUSTIFY_CENTER: text_x = (title_w - text_w) / 2;  break;
2071         case JUSTIFY_RIGHT:  text_x =  title_w - text_w;  break;
2072         default: break; }
2073         }
2074
2075
2076         // until bottom of this row is visible
2077         int row1 = 0;
2078         int y0 = text_y - text_y1;
2079         while( row1 < text_rows ) {
2080                 TitleRow *row = title_rows[row1];
2081                 if( y0 + row->y0-row->y2 > 0 ) break;
2082                 ++row1;
2083         }
2084         if( row1 >= text_rows ) return 0;
2085
2086         // until top of next row is not visible
2087         y0 -= title_h;
2088         int row2 = row1;
2089         while( row2 < text_rows ) {
2090                 TitleRow *row = title_rows[row2];
2091                 if( y0 + row->y0-row->y1 >= 0 ) break;
2092                 ++row2;
2093         }
2094         if( row1 >= row2 ) return 0;
2095
2096 //printf("get_visible_rows: visible_row1/2 = %d to %d\n",visible_row1,visible_row2);
2097         // Only draw visible chars
2098         double frame_rate = PluginVClient::get_project_framerate();
2099         int64_t units = get_source_position() - get_source_start();
2100         double position = units / frame_rate;
2101         int blinking = 0;
2102         int char1 = -1, char2 = -1, nchars = title_chars.count();
2103         for( int i=0; i<nchars; ++i ) {
2104                 TitleChar *chr = title_chars[i];
2105                 if( chr->row < row1 ) continue;
2106                 if( chr->row >= row2 ) break;
2107                 if( char1 < 0 ) char1 = i;
2108                 char2 = i;
2109                 if( (chr->flags & FLAG_BLINK) != 0 ) {
2110                         blinking = 1;
2111                         double rate = 1 / fabs(chr->blink), rate2 = 2 * rate;
2112                         double pos = position - ((int64_t)(position / rate2)) * rate2;
2113                         chr->fade = chr->blink > 0 ?
2114                                 (pos > rate ? 0 : 1) : fabs(rate+pos) / rate;
2115                 }
2116         }
2117         if( char1 < 0 ) char1 = 0;
2118         ++char2;
2119         if( !blinking && visible_row1 == row1 && visible_row2 == row2 ) return 0;
2120 // need redraw
2121         visible_row1  = row1;   visible_row2  = row2;
2122         visible_char1 = char1;  visible_char2 = char2;
2123         return 1;
2124 }
2125
2126
2127 int TitleMain::draw_text(int need_redraw)
2128 {
2129         // until top of next row is not visible
2130         mask_x1 = mask_y1 = INT_MAX;
2131         mask_x2 = mask_y2 = INT_MIN;
2132         for( int i=visible_row1; i<visible_row2; ++i ) {
2133                 int v;  TitleRow *row = title_rows[i];
2134                 if( mask_x1 > (v=row->x0+row->x1) ) mask_x1 = v;
2135                 if( mask_y1 > (v=row->y0-row->y1) ) mask_y1 = v;
2136                 if( mask_x2 < (v=row->x0+row->x2) ) mask_x2 = v;
2137                 if( mask_y2 < (v=row->y0-row->y2) ) mask_y2 = v;
2138         }
2139         if( mask_x1 >= mask_x2 || mask_y1 >= mask_y2 ) return 1;
2140
2141         mask_x1 += fuzz1;  mask_y1 += fuzz1;
2142         mask_x2 += fuzz2;  mask_y2 += fuzz2;
2143         mask_w = mask_x2 - mask_x1;
2144         mask_h = mask_y2 - mask_y1;
2145
2146 //printf("TitleMain::draw_text %d-%d frame %dx%d\n",
2147 //  visible_row1, visible_row2, mask_w,mask_h);
2148         if( text_mask && (text_mask->get_color_model() != text_model ||
2149             text_mask->get_w() != mask_w || text_mask->get_h() != mask_h) ) {
2150                 delete text_mask;    text_mask = 0;
2151                 delete stroke_mask;  stroke_mask = 0;
2152         }
2153
2154         if( !text_mask ) {
2155 // Always use 8 bit because the glyphs are 8 bit
2156 // Need to set YUV to get clear_frame to set the right chroma.
2157                 mask_model = text_model;
2158                 text_mask = new VFrame;
2159                 text_mask->set_use_shm(0);
2160                 text_mask->reallocate(0, -1, 0, 0, 0, mask_w, mask_h, mask_model, -1);
2161                 int drop = abs(config.dropshadow);
2162                 int drop_w = mask_w + drop;
2163                 int drop_h = mask_h + drop;
2164                 stroke_mask = new VFrame;
2165                 stroke_mask->set_use_shm(0);
2166                 stroke_mask->reallocate(0, -1, 0, 0, 0, drop_w, drop_h, mask_model, -1);
2167                 need_redraw = 1;
2168         }
2169
2170 // Draw on text mask if it has changed
2171         if( need_redraw ) {
2172 //printf("redraw %d to %d   %d,%d  %d,%d - %d,%d\n", visible_char1,visible_char2,
2173 //  ext_x0, ext_y0, ext_x1,ext_y1, ext_x2,ext_y2);
2174
2175                 text_mask->clear_frame();
2176                 stroke_mask->clear_frame();
2177 #if 0
2178                 unsigned char *data = text_mask->get_data(); // draw bbox on text
2179                 for( int x=0; x<mask_w; ++x ) data[4*x+3] = 0xff;
2180                 for( int x=0; x<mask_w; ++x ) data[4*((mask_h-1)*mask_w+x)+3] = 0xff;
2181                 for( int y=0; y<mask_h; ++y ) data[4*mask_w*y+3] = 0xff;
2182                 for( int y=0; y<mask_h; ++y ) data[4*(mask_w*y + mask_w-1)+3] = 0xff;
2183 #endif
2184                 if( !title_engine )
2185                         title_engine = new TitleEngine(this, cpus);
2186
2187 // Draw dropshadow first
2188                 if( config.dropshadow ) {
2189                         title_engine->do_dropshadow = 1;
2190                         title_engine->set_package_count(visible_char2 - visible_char1);
2191                         title_engine->process_packages();
2192                 }
2193
2194 // Then draw foreground
2195                 title_engine->do_dropshadow = 0;
2196                 title_engine->set_package_count(visible_char2 - visible_char1);
2197                 title_engine->process_packages();
2198
2199                 draw_underline(text_mask, config.alpha);
2200
2201 // Convert to text outlines
2202                 if( config.outline_size > 0 ) {
2203                         if( outline_mask &&
2204                             (text_mask->get_w() != outline_mask->get_w() ||
2205                              text_mask->get_h() != outline_mask->get_h()) ) {
2206                                 delete outline_mask;  outline_mask = 0;
2207                         }
2208
2209                         if( !outline_mask ) {
2210                                 outline_mask = new VFrame;
2211                                 outline_mask->set_use_shm(0);
2212                                 outline_mask->reallocate(0, -1, 0, 0, 0,
2213                                         text_mask->get_w(), text_mask->get_h(),
2214                                         text_mask->get_color_model(), -1);
2215                         }
2216                         if( !outline_engine ) outline_engine =
2217                                 new TitleOutlineEngine(this, cpus);
2218                         outline_engine->do_outline();
2219                 }
2220
2221         }
2222
2223         return 0;
2224 }
2225
2226 int TitleMain::draw_underline(VFrame *mask, int alpha)
2227 {
2228         int row = -1, sz = -1, color = -1, rgb = -1;
2229         int bpp = mask->get_bytes_per_pixel(), bpp1 = bpp-1;
2230         int x1 = 0, x2 = 0, y0 = 0;
2231         for( int i=visible_char1; i<visible_char2; ) {
2232                 TitleChar *chr = title_chars[i];
2233                 if( (chr->flags & FLAG_UNDER) && row < 0 ) {
2234                         sz = chr->size;
2235                         rgb = chr->color;  int rr, gg, bb;
2236                         get_mask_colors(rgb, mask_model, rr, gg, bb);
2237                         color = (rr<<16) | (gg<<8) | (bb<<0);
2238                         row = chr->row;
2239                         TitleRow *rp = title_rows[row];
2240                         x1 = rp->x0 + chr->x;
2241                         y0 = rp->y0;
2242                 }
2243                 if( (chr->flags & FLAG_UNDER) && row == chr->row && chr->color == rgb ) {
2244                         TitleRow *rp = title_rows[row];
2245                         x2 = rp->x0 + chr->x + chr->dx;
2246                         if( sz < chr->size ) sz = chr->size;
2247                         if( ++i < visible_char2 ) continue;
2248                 }
2249                 if( row < 0 ) { ++i;  continue; }
2250                 x1 -= mask_x1;  x2 -= mask_x1;  y0 -= mask_y1;
2251                 if( x1 < 0 ) x1 = 0;
2252                 if( x2 > mask_w ) x2 = mask_w;
2253                 int sz1 = sz / 32 + 1, sz2 = sz1/2;
2254                 int y1 = y0 - sz2, y2 = y1 + sz1;
2255                 if( y1 < 0 ) y1 = 0;
2256                 if( y2 > mask_h ) y2 = mask_h;
2257                 unsigned char **rows = mask->get_rows();
2258                 for( int y=y1; y<y2; ++y ) {
2259                         unsigned char *rp = rows[y];
2260                         for( int x=x1; x<x2; ++x ) {
2261                                 unsigned char *bp = rp + bpp * x;
2262                                 for( int i=bpp1; --i>=0; ) *bp++ = color>>(8*i);
2263                                 *bp = alpha;
2264                         }
2265                 }
2266                 row = -1;
2267         }
2268         return 0;
2269 }
2270
2271 void TitleMain::draw_overlay()
2272 {
2273
2274 //printf("TitleMain::draw_overlay 1\n");
2275         fade = 1;
2276         if( !EQUIV(config.fade_in, 0) ) {
2277                 int fade_len = lroundf(config.fade_in * PluginVClient::project_frame_rate);
2278                 int fade_position = get_source_position() - config.prev_keyframe_position;
2279
2280                 if( fade_position >= 0 && fade_position < fade_len ) {
2281                         fade = (float)fade_position / fade_len;
2282                 }
2283         }
2284         if( !EQUIV(config.fade_out, 0) ) {
2285                 int fade_len = lroundf(config.fade_out * PluginVClient::project_frame_rate);
2286                 int fade_position = config.next_keyframe_position - get_source_position();
2287
2288
2289                 if( fade_position >= 0 && fade_position < fade_len ) {
2290                         fade = (float)fade_position / fade_len;
2291                 }
2292         }
2293
2294         if( !translate )
2295                 translate = new TitleTranslate(this, cpus);
2296         if( text_x+mask_w > 0 && text_x < title_w ) {
2297                 translate->xlat_mask = text_mask;
2298                 translate->run_packages();
2299                 if( config.stroke_width >= SMALL && (config.style & BC_FONT_OUTLINE) ) {
2300                         translate->xlat_mask = stroke_mask;
2301                         translate->run_packages();
2302                 }
2303         }
2304 }
2305
2306 const char* TitleMain::motion_to_text(int motion)
2307 {
2308         switch( motion ) {
2309         case NO_MOTION:     return _("No motion");
2310         case BOTTOM_TO_TOP: return _("Bottom to top");
2311         case TOP_TO_BOTTOM: return _("Top to bottom");
2312         case RIGHT_TO_LEFT: return _("Right to left");
2313         case LEFT_TO_RIGHT: return _("Left to right");
2314         }
2315         return _("Unknown");
2316 }
2317
2318 int TitleMain::text_to_motion(const char *text)
2319 {
2320         for( int i=0; i<TOTAL_PATHS; ++i ) {
2321                 if( !strcasecmp(motion_to_text(i), text) ) return i;
2322         }
2323         return 0;
2324 }
2325
2326 void TitleMain::reset_render()
2327 {
2328         delete text_mask;     text_mask = 0;
2329         delete stroke_mask;   stroke_mask = 0;
2330         delete glyph_engine;  glyph_engine = 0;
2331         visible_row1 = 0;     visible_row2 = 0;
2332         visible_char1 = 0;    visible_char2 = 0;
2333         title_rows.clear();
2334         title_glyphs.clear();
2335         title_images.clear();
2336         if( freetype_face ) {
2337                 FT_Done_Face(freetype_face);
2338                 freetype_face = 0;
2339         }
2340 }
2341
2342 int TitleMain::init_freetype()
2343 {
2344         if( !freetype_library )
2345                 FT_Init_FreeType(&freetype_library);
2346         return 0;
2347 }
2348
2349 void TitleMain::draw_boundry()
2350 {
2351         VFrame &out = *output;
2352         int iw = output->get_w(), ih = output->get_h();
2353         int mr = MIN(iw, ih)/200 + 2, rr = 2*mr;
2354         int x = title_x, y = title_y, w = title_w, h = title_h;
2355         int r2 = (rr+1)/2;
2356         int x0 = x-r2, x1 = x+(w+1)/2, x2 = x+w+r2;
2357         int y0 = y-r2, y1 = y+(h+1)/2, y2 = y+h+r2;
2358         int st = 1;
2359         for( int r=2; r<mr; r<<=1 ) st = r;
2360         out.set_stiple(st);
2361
2362         for( int r=mr/2; --r>=0; ) { // bbox
2363                 int lft = x+r, rgt = x+w-1-r;
2364                 int top = y+r, bot = y+h-1-r;
2365                 out.draw_line(lft,top, rgt,top);
2366                 out.draw_line(rgt,top, rgt,bot);
2367                 out.draw_line(rgt,bot, lft,bot);
2368                 out.draw_line(lft,bot, lft,top);
2369         }
2370
2371         for( int r=mr; r<rr; ++r ) { // center
2372                 out.draw_smooth(x1-r,y1, x1-r,y1+r, x1,y1+r);
2373                 out.draw_smooth(x1,y1+r, x1+r,y1+r, x1+r,y1);
2374                 out.draw_smooth(x1+r,y1, x1+r,y1-r, x1,y1-r);
2375                 out.draw_smooth(x1,y1-r, x1-r,y1-r, x1-r,y1);
2376         }
2377
2378         for( int r=rr; --r>=0; ) { // edge arrows
2379                 out.draw_line(x1-r,y0+r, x1+r,y0+r);
2380                 out.draw_line(x2-r,y1-r, x2-r,y1+r);
2381                 out.draw_line(x1-r,y2-r, x1+r,y2-r);
2382                 out.draw_line(x0+r,y1+r, x0+r,y1-r);
2383         }
2384         x0 += r2;  y0 += r2;  x2 -= r2;  y2 -= r2;
2385         for( int r=2*mr; --r>=0; ) { // corner arrows
2386                 out.draw_line(x0,y0+r, x0+r,y0);
2387                 out.draw_line(x2,y0+r, x2-r,y0);
2388                 out.draw_line(x2,y2-r, x2-r,y2);
2389                 out.draw_line(x0,y2-r, x0+r,y2);
2390         }
2391 }
2392
2393
2394 int TitleMain::process_realtime(VFrame *input_ptr, VFrame *output_ptr)
2395 {
2396         int result = 0;
2397         input = input_ptr;
2398         output = output_ptr;
2399         output_model = output->get_color_model();
2400         text_model = BC_CModels::is_yuv(output_model) ? BC_YUVA8888 : BC_RGBA8888;
2401
2402         if( text_model != mask_model ) need_reconfigure = 1;
2403         need_reconfigure |= load_configuration();
2404         int64_t cur_position =  get_source_position();
2405         if( last_position < 0 || last_position+1 != cur_position )
2406                 need_reconfigure = 1;
2407         last_position = cur_position;
2408
2409         title_x = config.title_x;  title_y = config.title_y;
2410         title_w = config.title_w ? config.title_w : input->get_w();
2411         title_h = config.title_h ? config.title_h : input->get_h();
2412
2413         fuzz1 = -config.outline_size;
2414         fuzz2 = config.outline_size;
2415         if( config.dropshadow < 0 )
2416                 fuzz1 += config.dropshadow;
2417         else
2418                 fuzz2 += config.dropshadow;
2419         fuzz = fuzz2 - fuzz1;
2420
2421 // Check boundaries
2422         if( config.size <= 0 || config.size >= 2048 )
2423                 config.size = 72;
2424         if( config.stroke_width < 0 || config.stroke_width >= 512 )
2425                 config.stroke_width = 0.0;
2426         if( !config.wlen && !config.timecode )
2427                 return 0;
2428         if( !strlen(config.encoding) )
2429                 strcpy(config.encoding, DEFAULT_ENCODING);
2430
2431 // Always synthesize text and redraw it for timecode
2432         if( config.timecode ) {
2433                 int64_t rendered_frame = get_source_position();
2434                 if( get_direction() == PLAY_REVERSE )
2435                         rendered_frame -= 1;
2436
2437                 char text[BCTEXTLEN];
2438                 Units::totext(text,
2439                                 (double)rendered_frame / PluginVClient::project_frame_rate,
2440                                 config.timecode_format,
2441                                 PluginVClient::get_project_samplerate(),
2442                                 PluginVClient::get_project_framerate(),
2443                                 16);
2444                 config.to_wtext(config.encoding, text, strlen(text)+1);
2445                 need_reconfigure = 1;
2446         }
2447
2448         if( config.background )
2449                 draw_background();
2450
2451 // Handle reconfiguration
2452         if( need_reconfigure ) {
2453                 need_reconfigure = 0;
2454                 reset_render();
2455                 result = init_freetype();
2456                 if( !result ) {
2457                         load_glyphs();
2458                         result = get_text();
2459                 }
2460         }
2461
2462         if( !result )
2463                 result = draw_text(get_visible_text());
2464
2465
2466 // Overlay mask on output
2467         if( !result )
2468                 draw_overlay();
2469
2470         if( config.drag )
2471                 draw_boundry();
2472
2473         return 0;
2474 }
2475
2476 void TitleMain::update_gui()
2477 {
2478         if( thread ) {
2479                 int reconfigure = load_configuration();
2480                 if( reconfigure ) {
2481                         TitleWindow *window = (TitleWindow*)thread->window;
2482                         window->lock_window("TitleMain::update_gui");
2483                         window->update();
2484                         window->unlock_window();
2485                         window->color_thread->update_gui(config.color, 0);
2486                 }
2487         }
2488 }
2489
2490 int TitleMain::load_configuration()
2491 {
2492         KeyFrame *prev_keyframe, *next_keyframe;
2493         prev_keyframe = get_prev_keyframe(get_source_position());
2494         next_keyframe = get_next_keyframe(get_source_position());
2495
2496         TitleConfig old_config, prev_config, next_config;
2497         old_config.copy_from(config);
2498         read_data(prev_keyframe);
2499         prev_config.copy_from(config);
2500         read_data(next_keyframe);
2501         next_config.copy_from(config);
2502
2503         config.prev_keyframe_position = prev_keyframe->position;
2504         config.next_keyframe_position = next_keyframe->position;
2505
2506         // if no previous keyframe exists, it should be start of the plugin, not start of the track
2507         if( config.next_keyframe_position == config.prev_keyframe_position )
2508                 config.next_keyframe_position = get_source_start() + get_total_len();
2509         if( config.prev_keyframe_position == 0 )
2510                 config.prev_keyframe_position = get_source_start();
2511 // printf("TitleMain::load_configuration 10 %d %d\n",
2512 // config.prev_keyframe_position,
2513 // config.next_keyframe_position);
2514
2515         config.interpolate(prev_config,
2516                 next_config,
2517                 (next_keyframe->position == prev_keyframe->position) ?
2518                         get_source_position() :
2519                         prev_keyframe->position,
2520                 (next_keyframe->position == prev_keyframe->position) ?
2521                         get_source_position() + 1 :
2522                         next_keyframe->position,
2523                 get_source_position());
2524
2525         if( !config.equivalent(old_config) )
2526                 return 1;
2527         return 0;
2528 }
2529
2530
2531 void TitleMain::save_data(KeyFrame *keyframe)
2532 {
2533         FileXML output;
2534
2535         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
2536         output.tag.set_title("TITLE");
2537         output.tag.set_property("FONT", config.font);
2538         output.tag.set_property("ENCODING", config.encoding);
2539         output.tag.set_property("STYLE", (int64_t)config.style);
2540         output.tag.set_property("SIZE", config.size);
2541         output.tag.set_property("COLOR", config.color);
2542         output.tag.set_property("ALPHA", config.alpha);
2543         output.tag.set_property("OUTLINE_SIZE", config.outline_size);
2544         output.tag.set_property("OUTLINE_COLOR", config.outline_color);
2545         output.tag.set_property("OUTLINE_ALPHA", config.outline_alpha);
2546         output.tag.set_property("COLOR_STROKE", config.color_stroke);
2547         output.tag.set_property("STROKE_WIDTH", config.stroke_width);
2548         output.tag.set_property("MOTION_STRATEGY", config.motion_strategy);
2549         output.tag.set_property("LOOP", config.loop);
2550         output.tag.set_property("LINE_PITCH", config.line_pitch);
2551         output.tag.set_property("PIXELS_PER_SECOND", config.pixels_per_second);
2552         output.tag.set_property("HJUSTIFICATION", config.hjustification);
2553         output.tag.set_property("VJUSTIFICATION", config.vjustification);
2554         output.tag.set_property("FADE_IN", config.fade_in);
2555         output.tag.set_property("FADE_OUT", config.fade_out);
2556         output.tag.set_property("TITLE_X", config.title_x);
2557         output.tag.set_property("TITLE_Y", config.title_y);
2558         output.tag.set_property("TITLE_W", config.title_w);
2559         output.tag.set_property("TITLE_H", config.title_h);
2560         output.tag.set_property("DROPSHADOW", config.dropshadow);
2561         output.tag.set_property("TIMECODE", config.timecode);
2562         output.tag.set_property("TIMECODEFORMAT", config.timecode_format);
2563         output.tag.set_property("WINDOW_W", config.window_w);
2564         output.tag.set_property("WINDOW_H", config.window_h);
2565         output.tag.set_property("DRAG", config.drag);
2566         output.tag.set_property("BACKGROUND", config.background);
2567         output.tag.set_property("BACKGROUND_PATH", config.background_path);
2568         output.tag.set_property("LOOP_PLAYBACK", config.loop_playback);
2569         output.append_tag();
2570         output.append_newline();
2571         char text[BCTEXTLEN];
2572         int text_len = BC_Resources::encode(
2573                 BC_Resources::wide_encoding, DEFAULT_ENCODING,
2574                 (char*)config.wtext, config.wlen*sizeof(wchar_t),
2575                 text, sizeof(text));
2576         output.append_text(text, text_len);
2577         output.tag.set_title("/TITLE");
2578         output.append_tag();
2579         output.append_newline();
2580         output.terminate_string();
2581 //printf("TitleMain::save_data 1\n%s\n", output.string);
2582 //printf("TitleMain::save_data 2\n%s\n", config.text);
2583 }
2584
2585 void TitleMain::read_data(KeyFrame *keyframe)
2586 {
2587         FileXML input;
2588
2589         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
2590
2591         int result = 0;
2592
2593         config.prev_keyframe_position = keyframe->position;
2594         while(!result)
2595         {
2596                 result = input.read_tag();
2597                 if( result ) break;
2598
2599                 if( input.tag.title_is("TITLE") ) {
2600                         input.tag.get_property("FONT", config.font);
2601                         input.tag.get_property("ENCODING", config.encoding);
2602                         config.style = input.tag.get_property("STYLE", (int64_t)config.style);
2603                         config.size = input.tag.get_property("SIZE", config.size);
2604                         config.color = input.tag.get_property("COLOR", config.color);
2605                         config.alpha = input.tag.get_property("ALPHA", config.alpha);
2606                         config.outline_size = input.tag.get_property("OUTLINE_SIZE", config.outline_size);
2607                         config.outline_color = input.tag.get_property("OUTLINE_COLOR", config.outline_color);
2608                         config.outline_alpha = input.tag.get_property("OUTLINE_ALPHA", config.outline_alpha);
2609                         config.color_stroke = input.tag.get_property("COLOR_STROKE", config.color_stroke);
2610                         config.stroke_width = input.tag.get_property("STROKE_WIDTH", config.stroke_width);
2611                         config.motion_strategy = input.tag.get_property("MOTION_STRATEGY", config.motion_strategy);
2612                         config.loop = input.tag.get_property("LOOP", config.loop);
2613                         config.line_pitch = input.tag.get_property("LINE_PITCH", config.line_pitch);
2614                         config.pixels_per_second = input.tag.get_property("PIXELS_PER_SECOND", config.pixels_per_second);
2615                         config.hjustification = input.tag.get_property("HJUSTIFICATION", config.hjustification);
2616                         config.vjustification = input.tag.get_property("VJUSTIFICATION", config.vjustification);
2617                         config.fade_in = input.tag.get_property("FADE_IN", config.fade_in);
2618                         config.fade_out = input.tag.get_property("FADE_OUT", config.fade_out);
2619                         config.title_x = input.tag.get_property("TITLE_X", config.title_x);
2620                         config.title_y = input.tag.get_property("TITLE_Y", config.title_y);
2621                         config.title_w = input.tag.get_property("TITLE_W", config.title_w);
2622                         config.title_h = input.tag.get_property("TITLE_H", config.title_h);
2623                         config.dropshadow = input.tag.get_property("DROPSHADOW", config.dropshadow);
2624                         config.timecode = input.tag.get_property("TIMECODE", config.timecode);
2625                         config.timecode_format = input.tag.get_property("TIMECODEFORMAT", config.timecode_format);
2626                         config.window_w = input.tag.get_property("WINDOW_W", config.window_w);
2627                         config.window_h = input.tag.get_property("WINDOW_H", config.window_h);
2628                         config.drag = input.tag.get_property("DRAG", config.drag);
2629                         config.background = input.tag.get_property("BACKGROUND", config.background);
2630                         input.tag.get_property("BACKGROUND_PATH", config.background_path);
2631                         config.loop_playback = input.tag.get_property("LOOP_PLAYBACK", config.loop_playback);
2632                         const char *text = input.read_text();
2633                         config.to_wtext(config.encoding, text, strlen(text)+1);
2634                 }
2635                 else if( input.tag.title_is("/TITLE") ) {
2636                         result = 1;
2637                 }
2638         }
2639 }
2640
2641 void TitleMain::insert_text(const char *txt, int pos)
2642 {
2643         int ilen = strlen(txt);
2644         wchar_t *wtext = config.wtext;
2645         int wsize = sizeof(config.wtext)-1;
2646         int wlen = config.wlen;
2647         if( pos < 0 ) pos = 0;
2648         if( pos > wlen ) pos = wlen;
2649
2650         for( int i=wlen-1, j=wlen+ilen-1; i>=pos; --i,--j ) {
2651                 if( j >= wsize ) continue;
2652                 wtext[j] = wtext[i];
2653         }
2654         for( int i=pos, j=0; j<ilen; ++i,++j ) {
2655                 if( i >= wsize ) break;
2656                 wtext[i] = txt[j];
2657         }
2658
2659         if( (wlen+=ilen) > wsize ) wlen = wsize;
2660         wtext[wlen] = 0;
2661         config.wlen = wlen;
2662 }
2663