add asset max wxh and max texture tests, fix position clamp for single frame assets
[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / vmodule.C
1
2 /*
3  * CINELERRA
4  * Copyright (C) 2009-2013 Adam Williams <broadcast at earthling dot net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21
22 #include "asset.h"
23 #include "bchash.h"
24 #include "bcpbuffer.h"
25 #include "bcsignals.h"
26 #include "cache.h"
27 #include "clip.h"
28 #include "commonrender.h"
29 #include "edits.h"
30 #include "edl.h"
31 #include "edlsession.h"
32 #include "file.h"
33 #include "filexml.h"
34 #include "floatautos.h"
35 #include "maskauto.h"
36 #include "maskautos.h"
37 #include "mwindow.h"
38 #include "overlayframe.h"
39 #include "patch.h"
40 #include "pluginarray.h"
41 #include "preferences.h"
42 #include "renderengine.h"
43 #include "sharedlocation.h"
44 #include "tracks.h"
45 #include "transition.h"
46 #include "transportque.h"
47 #include "units.h"
48 #include "vattachmentpoint.h"
49 #include "vdevicex11.h"
50 #include "vedit.h"
51 #include "vframe.h"
52 #include "videodevice.h"
53 #include "virtualvconsole.h"
54 #include "vmodule.h"
55 #include "vrender.h"
56 #include "vplugin.h"
57 #include "vtrack.h"
58 #include <string.h>
59 #include "maskengine.h"
60 #include "automation.h"
61
62 VModule::VModule(RenderEngine *renderengine,
63         CommonRender *commonrender,
64         PluginArray *plugin_array,
65         Track *track)
66  : Module(renderengine, commonrender, plugin_array, track)
67 {
68         data_type = TRACK_VIDEO;
69         overlay_temp = 0;
70         input_temp = 0;
71         transition_temp = 0;
72         masker = 0;
73 }
74
75 VModule::~VModule()
76 {
77         if( overlay_temp ) delete overlay_temp;
78         if( input_temp ) delete input_temp;
79         if( transition_temp ) delete transition_temp;
80         delete masker;
81 }
82
83
84 AttachmentPoint* VModule::new_attachment(Plugin *plugin)
85 {
86         return new VAttachmentPoint(renderengine, plugin);
87 }
88
89 int VModule::get_buffer_size()
90 {
91         return 1;
92 }
93
94 CICache* VModule::get_cache()
95 {
96         if( renderengine )
97                 return renderengine->get_vcache();
98         else
99                 return cache;
100 }
101
102
103 int VModule::import_frame(VFrame *output, VEdit *current_edit,
104         int64_t input_position, double frame_rate, int direction, int use_opengl)
105 {
106         int64_t direction_position;
107 // Translation of edit
108         float in_x, in_y, in_w, in_h;
109         float out_x, out_y, out_w, out_h;
110         int result = 0;
111         const int debug = 0;
112         double edl_rate = get_edl()->session->frame_rate;
113
114         int64_t input_position_project = Units::to_int64(input_position *
115                 edl_rate / frame_rate + 0.001);
116
117         if( !output ) printf("VModule::import_frame %d output=%p\n", __LINE__, output);
118         //output->dump_params();
119
120         if( debug ) printf("VModule::import_frame %d this=%p input_position=%lld direction=%d\n",
121                 __LINE__, this, (long long)input_position, direction);
122
123 // Convert to position corrected for direction
124         direction_position = input_position;
125         if( direction == PLAY_REVERSE ) {
126                 if( direction_position > 0 ) direction_position--;
127                 if( input_position_project > 0 ) input_position_project--;
128         }
129         if( !output ) printf("VModule::import_frame %d output=%p\n", __LINE__, output);
130
131         VDeviceX11 *x11_device = 0;
132         if( use_opengl ) {
133                 if( renderengine && renderengine->video ) {
134                         x11_device = (VDeviceX11*)renderengine->video->get_output_base();
135                         output->set_opengl_state(VFrame::RAM);
136                         if( !x11_device ) use_opengl = 0;
137                 }
138         }
139
140         if( !output ) printf("VModule::import_frame %d output=%p x11_device=%p nested_edl=%p\n",
141                 __LINE__, output, x11_device, nested_edl);
142
143         if( debug ) printf("VModule::import_frame %d current_edit=%p\n",
144                 __LINE__, current_edit);
145
146 // Load frame into output
147
148 // Create objects for nested EDL
149         if( current_edit && current_edit->nested_edl ) {
150                 int command;
151                 if( debug ) printf("VModule::import_frame %d nested_edl=%p current_edit->nested_edl=%p\n",
152                         __LINE__, nested_edl, current_edit->nested_edl);
153
154 // Convert requested direction to command
155                 if( renderengine->command->command == CURRENT_FRAME ||
156                     renderengine->command->command == LAST_FRAME ) {
157                         command = renderengine->command->command;
158                 }
159                 else
160                 if( direction == PLAY_REVERSE ) {
161                         if( renderengine->command->single_frame() )
162                                 command = SINGLE_FRAME_REWIND;
163                         else
164                                 command = NORMAL_REWIND;
165                 }
166                 else {
167                         if( renderengine->command->single_frame() )
168                                 command = SINGLE_FRAME_FWD;
169                         else
170                                 command = NORMAL_FWD;
171                 }
172
173                 if( !nested_edl || nested_edl->id != current_edit->nested_edl->id ) {
174                         nested_edl = current_edit->nested_edl;
175                         if( nested_renderengine ) {
176                                 delete nested_renderengine;
177                                 nested_renderengine = 0;
178                         }
179                         if( !nested_command )
180                                 nested_command = new TransportCommand;
181                         nested_command->command = command;
182                         nested_command->get_edl()->copy_all(nested_edl);
183                         nested_command->change_type = CHANGE_ALL;
184                         nested_command->realtime = renderengine->command->realtime;
185                         nested_renderengine = new RenderEngine(0, get_preferences(), 0, 1);
186                         nested_renderengine->set_vcache(get_cache());
187                         nested_renderengine->arm_command(nested_command);
188                 }
189                 else {
190
191 // Update nested command
192                         nested_renderengine->command->command = command;
193                         nested_command->realtime = renderengine->command->realtime;
194                 }
195
196 // Update nested video driver for opengl
197                 nested_renderengine->video = renderengine->video;
198         }
199         else {
200                 nested_edl = 0;
201         }
202         if( debug ) printf("VModule::import_frame %d\n", __LINE__);
203
204         if( output ) {
205                 if( use_opengl )
206                         x11_device->clear_input(output);
207                 else
208                         output->clear_frame();
209         }
210         else
211                 printf("VModule::import_frame %d output=%p\n", __LINE__, output);
212
213         if( current_edit &&
214                 (current_edit->asset ||
215                 (current_edit->nested_edl && nested_renderengine->vrender)) ) {
216                 File *file = 0;
217
218 //printf("VModule::import_frame %d cache=%p\n", __LINE__, get_cache());
219                 if( current_edit->asset ) {
220                         get_cache()->age();
221                         file = get_cache()->check_out(current_edit->asset, get_edl());
222 //                      get_cache()->dump();
223                 }
224
225 // File found
226                 if( file || nested_edl ) {
227                         int64_t nested_position = 0;
228 // Source position going forward, in edl framerate
229                         int64_t pos = Units::to_int64((double)direction_position / frame_rate * edl_rate);
230                         int64_t len = pos - current_edit->startproject;
231                         FloatAutos *speed_autos = !track->has_speed() ? 0 :
232                                 (FloatAutos*)track->automation->autos[AUTOMATION_SPEED];
233                         if( speed_autos && len > 0 )
234                                 len = speed_autos->automation_integral(current_edit->startproject, len, PLAY_FORWARD);
235                         pos = current_edit->startsource + len;
236 // Make positions based on requested frame rate.
237                         int64_t position = Units::to_int64((double)pos * frame_rate / edl_rate);
238
239                         int64_t max_position;
240                         int asset_w, asset_h;
241                         if( file ) {
242                                 asset_w = current_edit->asset->width;
243                                 asset_h = current_edit->asset->height;
244                                 max_position = Units::to_int64((double)file->get_video_length() *
245                                         frame_rate / current_edit->asset->frame_rate - 1);
246                         }
247                         else {
248                                 asset_w = nested_edl->session->output_w;
249                                 asset_h = nested_edl->session->output_h;
250                                 max_position = Units::to_int64(nested_edl->tracks->total_length() *
251                                         frame_rate - 1);
252                         }
253                         if( max_position < 0 ) max_position = 0;
254 // if we hit the end of stream, freeze at last frame
255                         CLAMP(position, 0, max_position);
256
257                         VFrame *&input = commonrender ?
258                                 ((VRender*)commonrender)->input_temp : // Realtime playback
259                                 input_temp ; // Menu effect
260                         VFrame::get_temp(input, asset_w, asset_h, get_edl()->session->color_model);
261
262                         int use_cache = renderengine &&
263                                 ( renderengine->command->single_frame() ||
264                                   renderengine->command->get_direction() == PLAY_REVERSE );
265
266 //                      int use_asynchronous = !use_cache &&
267 //                              renderengine &&
268 // Try to make rendering go faster.
269 // But converts some formats to YUV420, which may degrade input format.
270 ////                            renderengine->command->realtime &&
271 //                              renderengine->get_edl()->session->video_asynchronous;
272
273                         if( file ) {
274                                 if( debug ) printf("VModule::import_frame %d\n", __LINE__);
275 //                              if( use_asynchronous )
276 //                                      file->start_video_decode_thread();
277 //                              else
278                                         file->stop_video_thread();
279
280 // cache transitions
281                                 VEdit *vnext = (VEdit *)current_edit->next;
282                                 pos = Units::to_int64((double)input_position / frame_rate * edl_rate);
283                                 if( renderengine && renderengine->preferences->cache_transitions &&
284                                     renderengine->command->get_direction() == PLAY_FORWARD &&
285                                     current_edit->next && current_edit->next->transition &&
286                                     file->get_video_length() >= 0 && pos >= vnext->startproject &&
287                                     pos < vnext->startproject + vnext->transition->length ) {
288                                         file->set_cache_frames(0);
289                                         file->set_layer(current_edit->channel);
290                                         VEdit *vnext = (VEdit *)current_edit->next;
291                                         Track *track = current_edit->track;
292                                         FloatAutos *speed_autos = (FloatAutos*)(track->has_speed() ?
293                                                 track->automation->autos[AUTOMATION_SPEED] : 0);
294                                         int64_t end = vnext->startproject + vnext->transition->length;
295                                         int first_frame = 1;
296                                         int count = renderengine->preferences->cache_size /
297                                                 input->get_data_size() / 2;  // try to burn only 1/2 of cache
298                                         while( !result && pos < end && count > 0 ) {
299                                                 int64_t curr_pos = pos - current_edit->startproject;
300                                                 if( curr_pos > 0 && speed_autos )
301                                                         curr_pos = speed_autos->automation_integral(
302                                                                 current_edit->startproject, curr_pos, PLAY_FORWARD);
303                                                 curr_pos += current_edit->startsource;
304                                                 int64_t norm_pos = Units::to_int64((double)curr_pos *
305                                                         current_edit->asset->frame_rate / edl_rate);
306                                                 VFrame *cache_frame = file->new_cache_frame(input, norm_pos, first_frame);
307                                                 if( cache_frame ) {
308                                                         file->set_video_position(norm_pos, 0);
309                                                         result = file->read_frame(cache_frame);
310                                                         file->put_cache_frame();
311                                                 }
312                                                 else if( first_frame ) // already loaded
313                                                         break;
314                                                 first_frame = 0;
315                                                 ++pos;  --count;
316                                         }
317                                         use_cache = 1;
318                                 }
319
320                                 int64_t normalized_position = Units::to_int64((double)position *
321                                         current_edit->asset->frame_rate / frame_rate);
322 //printf("VModule::import_frame %d %lld %lld\n", __LINE__, position, normalized_position);
323                                 file->set_layer(current_edit->channel);
324                                 file->set_video_position(normalized_position, 0);
325                         }
326                         else {
327                                 if( debug ) printf("VModule::import_frame %d\n", __LINE__);
328 // Get source position in nested frame rate in direction of playback.
329                                 nested_position = Units::to_int64(position *
330                                         nested_edl->session->frame_rate /
331                                         frame_rate);
332                                 if( direction == PLAY_REVERSE )
333                                         nested_position++;
334                         }
335
336
337 // Auto scale if required
338                         if( output->get_params()->get("AUTOSCALE", 0) ) {
339                                 float autoscale_w = output->get_params()->get("AUTOSCALE_W", 1024);
340                                 float autoscale_h = output->get_params()->get("AUTOSCALE_H", 1024);
341                                 float x_scale = autoscale_w / asset_w;
342                                 float y_scale = autoscale_h / asset_h;
343
344 // Overriding camera
345                                 in_x = 0;
346                                 in_y = 0;
347                                 in_w = asset_w;
348                                 in_h = asset_h;
349
350                                 if( x_scale < y_scale ) {
351                                         out_w = in_w * x_scale;
352                                         out_h = in_h * x_scale;
353                                 }
354                                 else {
355                                         out_w = in_w * y_scale;
356                                         out_h = in_h * y_scale;
357                                 }
358
359                                 out_x = track->track_w / 2 - out_w / 2;
360                                 out_y = track->track_h / 2 - out_h / 2;
361                         }
362                         else {
363 // Apply camera
364                                 ((VTrack*)track)->calculate_input_transfer(asset_w,
365                                         asset_h, input_position_project, direction,
366                                         in_x, in_y, in_w, in_h,
367                                         out_x, out_y, out_w, out_h);
368                         }
369
370 // printf("VModule::import_frame %d %f %d %f %d\n",
371 // __LINE__, in_w, asset_w, in_h, asset_h);
372
373 // file -> temp -> output
374                         if( !EQUIV(in_x, 0) ||
375                                 !EQUIV(in_y, 0) ||
376                                 !EQUIV(in_w, track->track_w) ||
377                                 !EQUIV(in_h, track->track_h) ||
378                                 !EQUIV(out_x, 0) ||
379                                 !EQUIV(out_y, 0) ||
380                                 !EQUIV(out_w, track->track_w) ||
381                                 !EQUIV(out_h, track->track_h) ||
382                                 !EQUIV(in_w, asset_w) ||
383                                 !EQUIV(in_h, asset_h)) {
384 //printf("VModule::import_frame %d file -> temp -> output\n", __LINE__);
385 // Get temporary input buffer
386                                 VFrame **input = commonrender ?  // Realtime playback
387                                         &((VRender*)commonrender)->input_temp :
388                                         &input_temp ; // Menu effect
389                                 VFrame::get_temp(*input, asset_w, asset_h,
390                                                 get_edl()->session->color_model);
391                                 (*input)->copy_stacks(output);
392 // file -> temp
393 // Cache for single frame, reverse playback
394                                 if( file ) {
395                                         if( debug ) printf("VModule::import_frame %d this=%p file=%s\n",
396                                                 __LINE__,
397                                                 this,
398                                                 current_edit->asset->path);
399                                         if( use_cache ) file->set_cache_frames(1);
400                                         result = file->read_frame((*input));
401                                         if( use_cache ) file->set_cache_frames(0);
402                                         (*input)->set_opengl_state(VFrame::RAM);
403                                 }
404                                 else
405                                 if( nested_edl ) {
406 // If the colormodels differ, change input to nested colormodel
407                                         int nested_cmodel = nested_renderengine->get_edl()->session->color_model;
408                                         int current_cmodel = output->get_color_model();
409                                         int output_w = output->get_w();
410                                         int output_h = output->get_h();
411                                         VFrame *input2 = (*input);
412
413                                         if( nested_cmodel != current_cmodel ) {
414 // If opengl, input -> input -> output
415                                                 if( use_opengl ) { }
416                                                 else {
417 // If software, input2 -> input -> output
418 // Use output as a temporary.
419                                                         input2 = output;
420                                                 }
421
422                                                 if( debug ) printf("VModule::import_frame %d this=%p nested_cmodel=%d\n",
423                                                         __LINE__,
424                                                         this,
425                                                         nested_cmodel);
426                                                 input2->dump();
427                                                 input2->reallocate(0, -1, 0, 0, 0,
428                                                         (*input)->get_w(), (*input)->get_h(),
429                                                         nested_cmodel, -1);
430                                                 input2->dump();
431                                         }
432
433
434                                         if( debug ) printf("VModule::import_frame %d this=%p nested_edl=%s input2=%p\n",
435                                                 __LINE__, this, nested_edl->path, input2);
436
437                                         result = nested_renderengine->vrender->process_buffer(
438                                                 input2, nested_position, use_opengl);
439
440                                         if( debug ) printf("VModule::import_frame %d this=%p nested_edl=%s\n",
441                                                 __LINE__,
442                                                 this,
443                                                 nested_edl->path);
444
445                                         if( nested_cmodel != current_cmodel ) {
446                                                 if( debug ) printf("VModule::import_frame %d\n", __LINE__);
447                                                 if( use_opengl ) {
448 // Change colormodel in hardware.
449                                                         if( debug ) printf("VModule::import_frame %d\n", __LINE__);
450                                                         x11_device->convert_cmodel(input2,
451                                                                 current_cmodel);
452
453 // The converted color model is now in hardware, so return the input2 buffer
454 // to the expected color model.
455                                                         input2->reallocate(0, -1, 0, 0, 0,
456                                                                 (*input)->get_w(), (*input)->get_h(),
457                                                                 current_cmodel, -1);
458                                                 }
459                                                 else {
460 // Transfer from input2 to input
461 if( debug ) printf("VModule::import_frame %d nested_cmodel=%d current_cmodel=%d input2=%p input=%p output=%p\n",
462   __LINE__, nested_cmodel, current_cmodel, input2, (*input), output);
463                                                         BC_CModels::transfer((*input)->get_rows(), input2->get_rows(),
464                                                                 0, 0, 0, 0, 0, 0,
465                                                                 0, 0, input2->get_w(), input2->get_h(),
466                                                                 0, 0, (*input)->get_w(), (*input)->get_h(),
467                                                                 nested_cmodel, current_cmodel, 0,
468                                                                 input2->get_w(), (*input)->get_w());
469 //printf("VModule::import_frame %d\n", __LINE__);
470
471 // input2 was the output buffer, so it must be restored
472                                                 input2->reallocate(0, -1, 0, 0, 0,
473                                                         output_w, output_h, current_cmodel, -1);
474 //printf("VModule::import_frame %d\n", __LINE__);
475                                                 }
476                                         }
477
478                                 }
479
480 // Find an overlayer object to perform the camera transformation
481                                 OverlayFrame *overlayer = 0;
482
483 // OpenGL playback uses hardware
484                                 if( use_opengl ) {
485 //printf("VModule::import_frame %d\n", __LINE__);
486                                 }
487                                 else if( commonrender ) {
488 // Realtime playback
489                                         VRender *vrender = (VRender*)commonrender;
490                                         overlayer = vrender->overlayer;
491                                 }
492                                 else {
493 // Menu effect
494                                         if( !plugin_array )
495                                                 printf("VModule::import_frame neither plugin_array nor commonrender is defined.\n");
496                                         if( !overlay_temp ) {
497                                                 overlay_temp = new OverlayFrame(plugin_array->mwindow->preferences->processors);
498                                         }
499
500                                         overlayer = overlay_temp;
501                                 }
502 // printf("VModule::import_frame 1 %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f\n",
503 //   in_x, in_y, in_w, in_h, out_x, out_y, out_w, out_h);
504
505 // temp -> output
506 // for( int j = 0; j < output->get_w() * 3 * 5; j++ )
507 //      output->get_rows()[0][j] = 255;
508
509                                 if( use_opengl ) {
510                                         x11_device->do_camera(output, (*input),
511                                                 in_x, in_y, in_x + in_w, in_y + in_h,
512                                                 out_x, out_y, out_x + out_w, out_y + out_h);
513 if( debug ) printf("VModule::import_frame %d %d %d\n",
514  __LINE__, output->get_opengl_state(), (*input)->get_opengl_state());
515                                 }
516                                 else {
517                                         output->clear_frame();
518 // get_cache()->check_in(current_edit->asset);
519 // return;
520
521 // TRANSFER_REPLACE is the fastest transfer mode but it has the disadvantage
522 // of producing green borders in floating point translation of YUV
523                                         int mode = TRANSFER_REPLACE;
524                                         if( get_edl()->session->interpolation_type != NEAREST_NEIGHBOR &&
525                                                 BC_CModels::is_yuv(output->get_color_model()) )
526                                                 mode = TRANSFER_NORMAL;
527
528                                         if( debug ) printf("VModule::import_frame %d temp -> output\n", __LINE__);
529                                         overlayer->overlay(output, (*input),
530                                                 in_x, in_y, in_x + in_w, in_y + in_h,
531                                                 out_x, out_y, out_x + out_w, out_y + out_h,
532                                                 1, mode, get_edl()->session->interpolation_type);
533                                 }
534                                 result = 1;
535                                 
536                                 output->copy_stacks((*input));
537                                 
538                                 
539 //printf("VModule::import_frame %d\n", __LINE__); 
540 //(*input)->dump_params();
541 //output->dump_params();
542                         }
543                         else {
544 // file -> output
545                                 if( debug ) printf("VModule::import_frame %d file -> output nested_edl=%p file=%p\n",
546                                         __LINE__, nested_edl, file);
547                                 if( nested_edl ) {
548                                         VFrame **input = &output;
549 // If colormodels differ, reallocate output in nested colormodel.
550                                         int nested_cmodel = nested_renderengine->get_edl()->session->color_model;
551                                         int current_cmodel = output->get_color_model();
552
553 if( debug ) printf("VModule::import_frame %d nested_cmodel=%d current_cmodel=%d\n",
554 __LINE__,
555 nested_cmodel,
556 current_cmodel);
557
558                                         if( nested_cmodel != current_cmodel ) {
559                                                 if( use_opengl ) { }
560                                                 else {
561                                                         if( commonrender ) {
562                                                                 input = &((VRender*)commonrender)->input_temp;
563                                                         }
564                                                         else {
565                                                                 input = &input_temp;
566                                                         }
567
568                                                         if( !(*input) ) (*input) = new VFrame;
569                                                 }
570
571                                                 (*input)->reallocate(0, -1, 0, 0, 0,
572                                                         output->get_w(), output->get_h(),
573                                                         nested_cmodel, -1);
574 if( debug ) printf("VModule::import_frame %d\n", __LINE__);
575 //(*input)->dump();
576 //(*input)->clear_frame();
577                                         }
578
579 if( debug ) printf("VModule::import_frame %d %p %p\n",
580  __LINE__, (*input)->get_rows(), (*input));
581                                         result = nested_renderengine->vrender->process_buffer(
582                                                 (*input), nested_position, use_opengl);
583 if( debug ) printf("VModule::import_frame %d\n",
584 __LINE__);
585
586 // If colormodels differ, change colormodels in opengl if possible.
587 // Swap output for temp if not possible.
588                                         if( nested_cmodel != current_cmodel ) {
589                                                 if( use_opengl ) {
590                                                         x11_device->convert_cmodel(output,
591                                                                 current_cmodel);
592
593 // The color model was changed in place, so return output buffer
594                                                         output->reallocate(0, -1, 0, 0, 0,
595                                                                 output->get_w(), output->get_h(),
596                                                                 current_cmodel, -1);
597                                                 }
598                                                 else {
599 // Transfer from temporary to output
600 if( debug ) printf("VModule::import_frame %d %d %d %d %d %d %d\n",
601   __LINE__, (*input)->get_w(), (*input)->get_h(),
602   output->get_w(), output->get_h(), nested_cmodel, current_cmodel);
603                                                         BC_CModels::transfer(output->get_rows(), (*input)->get_rows(),
604                                                                 0, 0, 0, 0, 0, 0,
605                                                                 0, 0, (*input)->get_w(), (*input)->get_h(),
606                                                                 0, 0, output->get_w(), output->get_h(),
607                                                                 nested_cmodel, current_cmodel, 0,
608                                                                 (*input)->get_w(), output->get_w());
609                                                 }
610
611                                         }
612                                 }
613                                 else if( file ) {
614 // Cache single frames
615 //memset(output->get_rows()[0], 0xff, 1024);
616                                         if( use_cache ) file->set_cache_frames(1);
617                                         result = file->read_frame(output);
618                                         if( use_cache ) file->set_cache_frames(0);
619                                         output->set_opengl_state(VFrame::RAM);
620                                 }
621                         }
622
623                         if( file ) {
624                                 get_cache()->check_in(current_edit->asset);
625                                 file = 0;
626                         }
627                 }
628                 else {
629 // Source not found
630                         result = 1;
631                 }
632
633 //              printf("VModule::import_frame %d cache=%p\n", 
634 //                      __LINE__,
635 //                      get_cache());
636
637         }
638         else {
639 // Source is silence
640                 if( debug ) printf("VModule::import_frame %d\n", __LINE__);
641                 if( use_opengl ) {
642                         x11_device->clear_input(output);
643                 }
644                 else {
645                         output->clear_frame();
646                 }
647         }
648
649         if( debug ) printf("VModule::import_frame %d done\n", __LINE__);
650
651         return result;
652 }
653
654
655 int VModule::render(VFrame *output,
656         int64_t start_position, int direction, double frame_rate,
657         int use_nudge, int debug_render, int use_opengl)
658 {
659         int result = 0;
660         double edl_rate = get_edl()->session->frame_rate;
661
662 //printf("VModule::render %d %ld\n", __LINE__, start_position);
663
664         if( use_nudge ) start_position += Units::to_int64(track->nudge *
665                 frame_rate / edl_rate);
666
667         int64_t start_position_project = Units::to_int64(start_position *
668                 edl_rate / frame_rate + 0.5);
669
670         update_transition(start_position_project, direction);
671
672         VEdit* current_edit = (VEdit*)track->edits->editof(start_position_project,
673                 direction, 0);
674         VEdit* previous_edit = 0;
675 //printf("VModule::render %d %p %ld %d\n", __LINE__, current_edit, start_position_project, direction);
676
677         Plugin *transition = get_edl()->tracks->plugin_exists(transition_id);
678         if( debug_render )
679                 printf("    VModule::render %d %d %jd %s transition=%p opengl=%d current_edit=%p output=%p\n",
680                         __LINE__, use_nudge, start_position_project, track->title,
681                         transition, use_opengl, current_edit, output);
682
683         if( !current_edit ) {
684                 output->clear_frame();
685                 // We do not apply mask here, since alpha is 0, and neither substracting nor multypling changes it
686                 // Another mask mode - "addition" should be added to be able to create mask from empty frames
687                 // in this case we would call masking here too...
688                 return 0;
689         }
690
691
692
693
694 // Process transition
695         if( transition && transition->on ) {
696
697 // Get temporary buffer
698                 VFrame **transition_input = 0;
699                 if( commonrender ) {
700                         VRender *vrender = (VRender*)commonrender;
701                         transition_input = &vrender->transition_temp;
702                 }
703                 else {
704                         transition_input = &transition_temp;
705                 }
706
707                 if( (*transition_input) &&
708                         ((*transition_input)->get_w() != track->track_w ||
709                         (*transition_input)->get_h() != track->track_h) ) {
710                         delete (*transition_input);
711                         (*transition_input) = 0;
712                 }
713
714 // Load incoming frame
715                 if( !(*transition_input) ) {
716                         (*transition_input) =
717                                 new VFrame(track->track_w, track->track_h,
718                                         get_edl()->session->color_model);
719                 }
720
721                 (*transition_input)->copy_stacks(output);
722
723 //printf("VModule::render %d\n", __LINE__);
724                 result = import_frame((*transition_input),
725                         current_edit, start_position, frame_rate,
726                         direction, use_opengl);
727
728
729 // Load transition buffer
730                 previous_edit = (VEdit*)current_edit->previous;
731
732                 result |= import_frame(output,
733                         previous_edit, start_position, frame_rate,
734                         direction, use_opengl);
735 //printf("VModule::render %d %p %p %p %p\n", __LINE__,
736 // (*transition_input), (*transition_input)->get_pbuffer(),
737 // output, output->get_pbuffer());
738
739 // Execute plugin with transition_input and output here
740                 if( renderengine )
741                         transition_server->set_use_opengl(use_opengl, renderengine->video);
742                 transition_server->process_transition((*transition_input), output,
743                         (direction == PLAY_FORWARD) ?
744                                 (start_position_project - current_edit->startproject) :
745                                 (start_position_project - current_edit->startproject - 1),
746                         transition->length);
747         }
748         else {
749 // Load output buffer
750                 result = import_frame(output,
751                         current_edit, start_position, frame_rate,
752                         direction, use_opengl);
753         }
754
755         Auto *current = 0;
756         MaskAutos *keyframe_set =
757                 (MaskAutos*)track->automation->autos[AUTOMATION_MASK];
758         int64_t mask_position = !renderengine ? start_position :
759                 renderengine->vrender->current_position;
760         MaskAuto *keyframe =
761                 (MaskAuto*)keyframe_set->get_prev_auto(mask_position, direction, current);
762
763         if( keyframe->apply_before_plugins && keyframe->has_active_mask() ) {
764                 VDeviceX11 *x11_device = 0;
765                 if( use_opengl && renderengine && renderengine->video ) {
766                         x11_device = (VDeviceX11*)renderengine->video->get_output_base();
767                         if( !x11_device->can_mask(mask_position, keyframe_set) ) {
768                                 if( output->get_opengl_state() != VFrame::RAM ) {
769                                         int w = output->get_w(), h = output->get_h();
770                                         x11_device->do_camera(output, output,
771                                                 0,0,w,h, 0,0,w,h); // copy to ram
772                                 }
773                                 use_opengl = 0;
774                         }
775                 }
776                 if( use_opengl && x11_device ) {
777                         x11_device->do_mask(output, mask_position, keyframe_set,
778                                         keyframe, keyframe);
779                 }
780                 else {
781                         if( !masker ) {
782                                 int cpus = renderengine ?
783                                         renderengine->preferences->processors :
784                                         plugin_array->mwindow->preferences->processors;
785                                 masker = new MaskEngine(cpus);
786                         }
787                         masker->do_mask(output, mask_position, keyframe_set, keyframe, keyframe);
788                 }
789         }
790
791         return result;
792 }
793
794
795 void VModule::create_objects()
796 {
797         Module::create_objects();
798 }
799