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         delete output_temp;
  52 }
  53
  54 VDeviceBase* VirtualVConsole::get_vdriver()
  55 {
  56         return renderengine->video->get_output_base();
  57 }
  58
  59 void VirtualVConsole::get_playable_tracks()
  60 {
  61         if(!playable_tracks)
  62                 playable_tracks = new PlayableTracks(renderengine->get_edl(),
  63                         commonrender->current_position,
  64                         renderengine->command->get_direction(),
  65                         TRACK_VIDEO,
  66                         1);
  67 //printf("VirtualVConsole::get_playable_tracks %d %d\n", __LINE__, playable_tracks->size());
  68 }
  69
  70 VirtualNode* VirtualVConsole::new_entry_node(Track *track,
  71         Module *module,
  72         int track_number)
  73 {
  74         return new VirtualVNode(renderengine,
  75                 this,
  76                 module,
  77                 0,
  78                 track,
  79                 0);
  80 }
  81
  82 // start of buffer in project if forward / end of buffer if reverse
  83 int VirtualVConsole::process_buffer(int64_t input_position,
  84         int use_opengl)
  85 {
  86         int result = 0;
  87
  88
  89
  90 // The use of single frame is determined in RenderEngine::arm_command
  91 // printf("VirtualVConsole::process_buffer %d this=%p %d\n",
  92 // __LINE__,
  93 // this,
  94 // use_opengl);
  95
  96         if(debug_tree)
  97                 printf("VirtualVConsole::process_buffer %d exit_nodes=%d\n",
  98                         __LINE__,
  99                         exit_nodes.total);
 100
 101
 102         if(use_opengl)
 103         {
 104 // clear hardware framebuffer
 105
 106                 ((VDeviceX11*)get_vdriver())->clear_output();
 107
 108 // que OpenGL driver that everything is overlaid in the framebuffer
 109                 vrender->video_out->set_opengl_state(VFrame::SCREEN);
 110
 111         }
 112         else
 113         {
 114 // clear device buffer
 115 //printf("VirtualVConsole::process_buffer %d %p\n", __LINE__, vrender->video_out);
 116 //vrender->video_out->dump();
 117                 vrender->video_out->clear_frame();
 118 //printf("VirtualVConsole::process_buffer %d\n", __LINE__);
 119         }
 120
 121
 122
 123
 124
 125
 126 // Reset plugin rendering status
 127         reset_attachments();
 128
 129 //      Timer timer;
 130 // Render exit nodes from bottom to top
 131         for(current_exit_node = exit_nodes.total - 1; current_exit_node >= 0; current_exit_node--)
 132         {
 133                 VirtualVNode *node = (VirtualVNode*)exit_nodes.values[current_exit_node];
 134                 Track *track = node->track;
 135
 136 // Create temporary output to match the track size, which is acceptable since
 137 // most projects don't have variable track sizes.
 138 // If the project has variable track sizes, this object is recreated for each track.
 139
 140
 141
 142
 143
 144                 if(output_temp &&
 145                         (output_temp->get_w() != track->track_w ||
 146                         output_temp->get_h() != track->track_h))
 147                 {
 148                         delete output_temp;
 149                         output_temp = 0;
 150                 }
 151
 152
 153                 if(!output_temp)
 154                 {
 155 // Texture is created on demand
 156                         EDL *edl = renderengine->get_edl();
 157                         output_temp = new VFrame( track->track_w, track->track_h,
 158                                 edl->session->color_model);
 159                         int clr_color = edl->session->cwindow_clear_color;
 160                         int clr_alpha = edl->session->cwindow_clear_alpha;
 161                         output_temp->set_clear_color(clr_color, clr_alpha);
 162                 }
 163
 164 // Reset OpenGL state
 165                 if(use_opengl)
 166                         output_temp->set_opengl_state(VFrame::RAM);
 167
 168
 169 // Assume openGL is used for the final stage and let console
 170 // disable.
 171                 output_temp->clear_stacks();
 172                 result |= node->render(output_temp,
 173                         input_position + track->nudge,
 174                         renderengine->get_edl()->session->frame_rate,
 175                         use_opengl);
 176
 177         }
 178 //printf("VirtualVConsole::process_buffer timer=%jd\n", timer.get_difference());
 179
 180         if(debug_tree) printf("VirtualVConsole::process_buffer %d\n", __LINE__);
 181         return result;
 182 }
 183