synfig-core/tags/synfig_0_61_04/synfig-core/src/synfig/target_scanline.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file target_scanline.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: target_scanline.cpp,v 1.1.1.1 2005/01/04 01:23:15 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "target_scanline.h"
  33 #include "string.h"
  34 #include "surface.h"
  35 #include "render.h"
  36 #include "canvas.h"
  37 #include "context.h"
  38
  39 #endif
  40
  41 /* === U S I N G =========================================================== */
  42
  43 using namespace std;
  44 using namespace etl;
  45 using namespace synfig;
  46
  47 /* === M A C R O S ========================================================= */
  48
  49 #define SYNFIG_OPTIMIZE_LAYER_TREE 1
  50
  51 #define PIXEL_RENDERING_LIMIT 1500000
  52
  53 #define USE_PIXELRENDERING_LIMIT 0
  54
  55 /* === G L O B A L S ======================================================= */
  56
  57 /* === P R O C E D U R E S ================================================= */
  58
  59 /* === M E T H O D S ======================================================= */
  60
  61 Target_Scanline::Target_Scanline():
  62         threads_(2)
  63 {
  64         curr_frame_=0;
  65 }
  66
  67 int
  68 Target_Scanline::next_frame(Time& time)
  69 {
  70         int
  71                 total_frames(1),
  72                 frame_start(0),
  73                 frame_end(0);
  74         Time
  75                 time_start(0),
  76                 time_end(0);
  77
  78         // If the description's end frame is equal to
  79         // the start frame, then it is assumed that we
  80         // are rendering only one frame. Correct it.
  81         if(desc.get_frame_end()==desc.get_frame_start())
  82                 desc.set_frame_end(desc.get_frame_start()+1);
  83
  84         frame_start=desc.get_frame_start();
  85         frame_end=desc.get_frame_end();
  86         time_start=desc.get_time_start();
  87         time_end=desc.get_time_end();
  88
  89         // Calculate the number of frames
  90         total_frames=frame_end-frame_start;
  91         if(total_frames<=0)total_frames=1;
  92
  93         //RendDesc rend_desc=desc;
  94         //rend_desc.set_gamma(1);
  95
  96 //      int total_tiles(total_tiles());
  97         time=(time_end-time_start)*curr_frame_/total_frames+time_start;
  98         curr_frame_++;
  99
 100 /*      synfig::info("curr_frame_: %d",curr_frame_);
 101         synfig::info("total_frames: %d",total_frames);
 102         synfig::info("time_end: %s",time_end.get_string().c_str());
 103         synfig::info("time_start: %s",time_start.get_string().c_str());
 104 */
 105 //      synfig::info("time: %s",time.get_string().c_str());
 106
 107         return total_frames- curr_frame_+1;
 108 }
 109 bool
 110 synfig::Target_Scanline::render(ProgressCallback *cb)
 111 {
 112         SuperCallback super_cb;
 113         int
 114 //              i=0,
 115                 total_frames,
 116                 quality=get_quality(),
 117                 frame_start,
 118                 frame_end;
 119         Time
 120                 t=0,
 121                 time_start,
 122                 time_end;
 123
 124         assert(canvas);
 125         curr_frame_=0;
 126
 127         init();
 128
 129         // If the description's end frame is equal to
 130         // the start frame, then it is assumed that we
 131         // are rendering only one frame. Correct it.
 132         if(desc.get_frame_end()==desc.get_frame_start())
 133                 desc.set_frame_end(desc.get_frame_start()+1);
 134
 135         frame_start=desc.get_frame_start();
 136         frame_end=desc.get_frame_end();
 137         time_start=desc.get_time_start();
 138         time_end=desc.get_time_end();
 139
 140         // Calculate the number of frames
 141         total_frames=frame_end-frame_start;
 142
 143
 144         //RendDesc rend_desc=desc;
 145
 146         try {
 147         // Grab the time
 148         int i=next_frame(t);
 149
 150         //synfig::info("1time_set_to %s",t.get_string().c_str());
 151
 152         if(i>1)
 153         do{
 154
 155         //if(total_frames>1)
 156         //for(i=0,t=time_start;i<total_frames;i++)
 157         //{
 158                 //t=((time_end-time_start)*((Real)i/(Real)total_frames)).round(desc.get_frame_rate())+time_start;
 159
 160                 // If we have a callback, and it returns
 161                 // false, go ahead and bail. (it may be a user cancel)
 162                 if(cb && !cb->amount_complete(total_frames-(i-1),total_frames))
 163                         return false;
 164
 165                 // Set the time that we wish to render
 166                 if(!get_avoid_time_sync() || canvas->get_time()!=t)
 167                         canvas->set_time(t);
 168
 169                 Context context;
 170
 171                 #ifdef SYNFIG_OPTIMIZE_LAYER_TREE
 172                 Canvas::Handle op_canvas(Canvas::create());
 173                 optimize_layers(canvas->get_context(), op_canvas);
 174                 context=op_canvas->get_context();
 175                 #else
 176                 context=canvas->get_context();
 177                 #endif
 178
 179                 // If the quality is set to zero, then we
 180                 // use the parametric scanline-renderer.
 181                 if(quality==0)
 182                 {
 183                         if(threads_<=0)
 184                         {
 185                                 if(!synfig::render(context,this,desc,0))
 186                                         return false;
 187                         }
 188                         else
 189                         {
 190                                 if(!synfig::render_threaded(context,this,desc,0,threads_))
 191                                         return false;
 192                         }
 193                 }
 194                 else // If quality is set otherwise, then we use the accelerated renderer
 195                 {
 196                         #if USE_PIXELRENDERING_LIMIT
 197                         if(desc.get_w()*desc.get_h() > PIXEL_RENDERING_LIMIT)
 198                         {
 199                                 synfig::info("Render BROKEN UP! (%d pixels)", desc.get_w()*desc.get_h());
 200
 201                                 Surface surface;
 202                                 int rowheight = PIXEL_RENDERING_LIMIT/desc.get_w();
 203                                 int rows = desc.get_h()/rowheight;
 204                                 int lastrowheight = desc.get_h() - rows*rowheight;
 205
 206                                 rows++;
 207
 208                                 synfig::info("\t blockh=%d,remh=%d,totrows=%d", rowheight,lastrowheight,rows);
 209
 210                                 // loop through all the full rows
 211                                 if(!start_frame())
 212                                 {
 213                                         throw(string("add_frame(): target panic on start_frame()"));
 214                                         return false;
 215                                 }
 216
 217                                 for(int i=0; i < rows; ++i)
 218                                 {
 219                                         RendDesc        blockrd = desc;
 220
 221                                         //render the strip at the normal size unless it's the last one...
 222                                         if(i == rows)
 223                                         {
 224                                                 if(!lastrowheight) break;
 225                                                 blockrd.set_subwindow(0,i*rowheight,desc.get_w(),lastrowheight);
 226                                         }
 227                                         else
 228                                         {
 229                                                 blockrd.set_subwindow(0,i*rowheight,desc.get_w(),rowheight);
 230                                         }
 231
 232                                         if(!context.accelerated_render(&surface,quality,blockrd,0))
 233                                         {
 234                                                 if(cb)cb->error(_("Accelerated Renderer Failure"));
 235                                                 return false;
 236                                         }else
 237                                         {
 238                                                 int y;
 239                                                 int rowspan=sizeof(Color)*surface.get_w();
 240                                                 Surface::pen pen = surface.begin();
 241
 242                                                 int yoff = i*rowheight;
 243
 244                                                 for(y = 0; y < blockrd.get_h(); y++, pen.inc_y())
 245                                                 {
 246                                                         Color *colordata= start_scanline(y + yoff);
 247                                                         if(!colordata)
 248                                                         {
 249                                                                 throw(string("add_frame(): call to start_scanline(y) returned NULL"));
 250                                                                 return false;
 251                                                         }
 252
 253                                                         if(get_remove_alpha())
 254                                                         {
 255                                                                 for(int i = 0; i < surface.get_w(); i++)
 256                                                                         colordata[i] = Color::blend(surface[y][i],desc.get_bg_color(),1.0f);
 257                                                         }
 258                                                         else
 259                                                                 memcpy(colordata,surface[y],rowspan);
 260
 261                                                         if(!end_scanline())
 262                                                         {
 263                                                                 throw(string("add_frame(): target panic on end_scanline()"));
 264                                                                 return false;
 265                                                         }
 266                                                 }
 267                                         }
 268                                 }
 269
 270                                 end_frame();
 271
 272                         }else //use normal rendering...
 273                         {
 274                         #endif
 275                                 Surface surface;
 276
 277                                 if(!context.accelerated_render(&surface,quality,desc,0))
 278                                 {
 279                                         // For some reason, the accelerated renderer failed.
 280                                         if(cb)cb->error(_("Accelerated Renderer Failure"));
 281                                         return false;
 282                                 }
 283                                 else
 284                                 {
 285                                         // Put the surface we renderer
 286                                         // onto the target.
 287                                         if(!add_frame(&surface))
 288                                         {
 289                                                 if(cb)cb->error(_("Unable to put surface on target"));
 290                                                 return false;
 291                                         }
 292                                 }
 293                         #if USE_PIXELRENDERING_LIMIT
 294                         }
 295                         #endif
 296                 }
 297         }while((i=next_frame(t)));
 298     else
 299     {
 300                 // Set the time that we wish to render
 301                 if(!get_avoid_time_sync() || canvas->get_time()!=t)
 302                         canvas->set_time(t);
 303                 Context context;
 304
 305                 #ifdef SYNFIG_OPTIMIZE_LAYER_TREE
 306                 Canvas::Handle op_canvas(Canvas::create());
 307                 optimize_layers(canvas->get_context(), op_canvas);
 308                 context=op_canvas->get_context();
 309                 #else
 310                 context=canvas->get_context();
 311                 #endif
 312
 313                 // If the quality is set to zero, then we
 314                 // use the parametric scanline-renderer.
 315                 if(quality==0)
 316                 {
 317                         if(threads_<=0)
 318                         {
 319                                 if(!synfig::render(context,this,desc,cb))
 320                                         return false;
 321                         }
 322                         else
 323                         {
 324                                 if(!synfig::render_threaded(context,this,desc,cb,threads_))
 325                                         return false;
 326                         }
 327                 }
 328                 else // If quality is set otherwise, then we use the accelerated renderer
 329                 {
 330                         #if USE_PIXELRENDERING_LIMIT
 331                         if(desc.get_w()*desc.get_h() > PIXEL_RENDERING_LIMIT)
 332                         {
 333                                 synfig::info("Render BROKEN UP! (%d pixels)", desc.get_w()*desc.get_h());
 334
 335                                 Surface surface;
 336                                 int totalheight = desc.get_h();
 337                                 int rowheight = PIXEL_RENDERING_LIMIT/desc.get_w();
 338                                 int rows = desc.get_h()/rowheight;
 339                                 int lastrowheight = desc.get_h() - rows*rowheight;
 340
 341                                 rows++;
 342
 343                                 synfig::info("\t blockh=%d,remh=%d,totrows=%d", rowheight,lastrowheight,rows);
 344
 345                                 // loop through all the full rows
 346                                 if(!start_frame())
 347                                 {
 348                                         throw(string("add_frame(): target panic on start_frame()"));
 349                                         return false;
 350                                 }
 351
 352                                 for(int i=0; i < rows; ++i)
 353                                 {
 354                                         RendDesc        blockrd = desc;
 355
 356                                         //render the strip at the normal size unless it's the last one...
 357                                         if(i == rows)
 358                                         {
 359                                                 if(!lastrowheight) break;
 360                                                 blockrd.set_subwindow(0,i*rowheight,desc.get_w(),lastrowheight);
 361                                         }
 362                                         else
 363                                         {
 364                                                 blockrd.set_subwindow(0,i*rowheight,desc.get_w(),rowheight);
 365                                         }
 366
 367                                         SuperCallback   sc(cb, i*rowheight, (i+1)*rowheight, totalheight);
 368
 369                                         if(!context.accelerated_render(&surface,quality,blockrd,&sc))
 370                                         {
 371                                                 if(cb)cb->error(_("Accelerated Renderer Failure"));
 372                                                 return false;
 373                                         }else
 374                                         {
 375                                                 int y;
 376                                                 int rowspan=sizeof(Color)*surface.get_w();
 377                                                 Surface::pen pen = surface.begin();
 378
 379                                                 int yoff = i*rowheight;
 380
 381                                                 for(y = 0; y < blockrd.get_h(); y++, pen.inc_y())
 382                                                 {
 383                                                         Color *colordata= start_scanline(y + yoff);
 384                                                         if(!colordata)
 385                                                         {
 386                                                                 throw(string("add_frame(): call to start_scanline(y) returned NULL"));
 387                                                                 return false;
 388                                                         }
 389
 390                                                         if(get_remove_alpha())
 391                                                         {
 392                                                                 for(int i = 0; i < surface.get_w(); i++)
 393                                                                         colordata[i] = Color::blend(surface[y][i],desc.get_bg_color(),1.0f);
 394                                                         }
 395                                                         else
 396                                                                 memcpy(colordata,surface[y],rowspan);
 397
 398                                                         if(!end_scanline())
 399                                                         {
 400                                                                 throw(string("add_frame(): target panic on end_scanline()"));
 401                                                                 return false;
 402                                                         }
 403                                                 }
 404                                         }
 405
 406                                         //I'm done with this part
 407                                         sc.amount_complete(100,100);
 408                                 }
 409
 410                                 end_frame();
 411
 412                         }else
 413                         {
 414                         #endif
 415                                 Surface surface;
 416
 417                                 if(!context.accelerated_render(&surface,quality,desc,cb))
 418                                 {
 419                                         if(cb)cb->error(_("Accelerated Renderer Failure"));
 420                                         return false;
 421                                 }
 422                                 else
 423                                 {
 424                                         // Put the surface we renderer
 425                                         // onto the target.
 426                                         if(!add_frame(&surface))
 427                                         {
 428                                                 if(cb)cb->error(_("Unable to put surface on target"));
 429                                                 return false;
 430                                         }
 431                                 }
 432                         #if USE_PIXELRENDERING_LIMIT
 433                         }
 434                         #endif
 435                 }
 436         }
 437
 438         }
 439         catch(String str)
 440         {
 441                 if(cb)cb->error(_("Caught string :")+str);
 442                 return false;
 443         }
 444         catch(std::bad_alloc)
 445         {
 446                 if(cb)cb->error(_("Ran out of memory (Probably a bug)"));
 447                 return false;
 448         }
 449         catch(...)
 450         {
 451                 if(cb)cb->error(_("Caught unknown error, rethrowing..."));
 452                 throw;
 453         }
 454         return true;
 455 }
 456
 457 bool
 458 Target_Scanline::add_frame(const Surface *surface)
 459 {
 460         assert(surface);
 461
 462
 463         int y;
 464         int rowspan=sizeof(Color)*surface->get_w();
 465         Surface::const_pen pen=surface->begin();
 466
 467         if(!start_frame())
 468         {
 469                 throw(string("add_frame(): target panic on start_frame()"));
 470                 return false;
 471         }
 472
 473         for(y=0;y<surface->get_h();y++,pen.inc_y())
 474         {
 475                 Color *colordata= start_scanline(y);
 476                 if(!colordata)
 477                 {
 478                         throw(string("add_frame(): call to start_scanline(y) returned NULL"));
 479                         return false;
 480                 }
 481
 482                 if(get_remove_alpha())
 483                 {
 484                         for(int i=0;i<surface->get_w();i++)
 485                                 colordata[i]=Color::blend((*surface)[y][i],desc.get_bg_color(),1.0f);
 486                 }
 487                 else
 488                         memcpy(colordata,(*surface)[y],rowspan);
 489
 490                 if(!end_scanline())
 491                 {
 492                         throw(string("add_frame(): target panic on end_scanline()"));
 493                         return false;
 494                 }
 495         }
 496
 497         end_frame();
 498
 499         return true;
 500 }