cinelerra-5.1/cinelerra/virtualvconsole.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcsignals.h"
  23 #include "bctimer.h"
  24 #include "datatype.h"
  25 #include "edl.h"
  26 #include "edlsession.h"
  27 #include "mwindow.h"
  28 #include "playabletracks.h"
  29 #include "preferences.h"
  30 #include "renderengine.h"
  31 #include "tracks.h"
  32 #include "transportque.h"
  33 #include "vdevicex11.h"
  34 #include "vframe.h"
  35 #include "videodevice.h"
  36 #include "virtualvconsole.h"
  37 #include "virtualvnode.h"
  38 #include "vmodule.h"
  39 #include "vrender.h"
  40 #include "vtrack.h"
  41
  42 VirtualVConsole::VirtualVConsole(RenderEngine *renderengine, VRender *vrender)
  43  : VirtualConsole(renderengine, vrender, TRACK_VIDEO)
  44 {
  45         this->vrender = vrender;
  46         output_temp = 0;
  47 }
  48
  49 VirtualVConsole::~VirtualVConsole()
  50 {
  51         if(output_temp)
  52         {
  53                 delete output_temp;
  54         }
  55 }
  56
  57 VDeviceBase* VirtualVConsole::get_vdriver()
  58 {
  59         return renderengine->video->get_output_base();
  60 }
  61
  62 void VirtualVConsole::get_playable_tracks()
  63 {
  64         if(!playable_tracks)
  65                 playable_tracks = new PlayableTracks(renderengine->get_edl(),
  66                         commonrender->current_position,
  67                         renderengine->command->get_direction(),
  68                         TRACK_VIDEO,
  69                         1);
  70 //printf("VirtualVConsole::get_playable_tracks %d %d\n", __LINE__, playable_tracks->size());
  71 }
  72
  73 VirtualNode* VirtualVConsole::new_entry_node(Track *track,
  74         Module *module,
  75         int track_number)
  76 {
  77         return new VirtualVNode(renderengine,
  78                 this,
  79                 module,
  80                 0,
  81                 track,
  82                 0);
  83 }
  84
  85 // start of buffer in project if forward / end of buffer if reverse
  86 int VirtualVConsole::process_buffer(int64_t input_position,
  87         int use_opengl)
  88 {
  89         int result = 0;
  90
  91
  92
  93 // The use of single frame is determined in RenderEngine::arm_command
  94 // printf("VirtualVConsole::process_buffer %d this=%p %d\n",
  95 // __LINE__,
  96 // this,
  97 // use_opengl);
  98
  99         if(debug_tree)
 100                 printf("VirtualVConsole::process_buffer %d exit_nodes=%d\n",
 101                         __LINE__,
 102                         exit_nodes.total);
 103
 104
 105         if(use_opengl)
 106         {
 107 // clear hardware framebuffer
 108
 109                 ((VDeviceX11*)get_vdriver())->clear_output();
 110
 111 // que OpenGL driver that everything is overlaid in the framebuffer
 112                 vrender->video_out->set_opengl_state(VFrame::SCREEN);
 113
 114         }
 115         else
 116         {
 117 // clear device buffer
 118 //printf("VirtualVConsole::process_buffer %d %p\n", __LINE__, vrender->video_out);
 119 //vrender->video_out->dump();
 120                 vrender->video_out->clear_frame();
 121 //printf("VirtualVConsole::process_buffer %d\n", __LINE__);
 122         }
 123
 124
 125
 126
 127
 128
 129 // Reset plugin rendering status
 130         reset_attachments();
 131
 132 //      Timer timer;
 133 // Render exit nodes from bottom to top
 134         for(current_exit_node = exit_nodes.total - 1; current_exit_node >= 0; current_exit_node--)
 135         {
 136                 VirtualVNode *node = (VirtualVNode*)exit_nodes.values[current_exit_node];
 137                 Track *track = node->track;
 138
 139 // Create temporary output to match the track size, which is acceptable since
 140 // most projects don't have variable track sizes.
 141 // If the project has variable track sizes, this object is recreated for each track.
 142
 143
 144
 145
 146
 147                 if(output_temp &&
 148                         (output_temp->get_w() != track->track_w ||
 149                         output_temp->get_h() != track->track_h))
 150                 {
 151                         delete output_temp;
 152                         output_temp = 0;
 153                 }
 154
 155
 156                 if(!output_temp)
 157                 {
 158 // Texture is created on demand
 159                         output_temp = new VFrame( track->track_w, track->track_h,
 160                                 renderengine->get_edl()->session->color_model);
 161                 }
 162
 163 // Reset OpenGL state
 164                 if(use_opengl)
 165                         output_temp->set_opengl_state(VFrame::RAM);
 166
 167
 168 // Assume openGL is used for the final stage and let console
 169 // disable.
 170                 output_temp->clear_stacks();
 171                 result |= node->render(output_temp,
 172                         input_position + track->nudge,
 173                         renderengine->get_edl()->session->frame_rate,
 174                         use_opengl);
 175
 176         }
 177 //printf("VirtualVConsole::process_buffer timer=%jd\n", timer.get_difference());
 178
 179         if(debug_tree) printf("VirtualVConsole::process_buffer %d\n", __LINE__);
 180         return result;
 181 }
 182