Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / plugins / dissolve / dissolve.C

diff --git a/cinelerra-5.1/plugins/dissolve/dissolve.C b/cinelerra-5.1/plugins/dissolve/dissolve.C
new file mode 100644 (file)
index 0000000..d264f6c
--- /dev/null
+++ b/cinelerra-5.1/plugins/dissolve/dissolve.C
@@ -0,0 +1,185 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ */
+
+#include "dissolve.h"
+#include "edl.inc"
+#include "language.h"
+#include "overlayframe.h"
+#include "vframe.h"
+
+#include <string.h>
+
+PluginClient* new_plugin(PluginServer *server)
+{
+       return new DissolveMain(server);
+}
+
+
+
+
+
+DissolveMain::DissolveMain(PluginServer *server)
+ : PluginVClient(server)
+{
+       overlayer = 0;
+}
+
+DissolveMain::~DissolveMain()
+{
+       delete overlayer;
+}
+
+const char* DissolveMain::plugin_title() { return _("Dissolve"); }
+int DissolveMain::is_video() { return 1; }
+int DissolveMain::is_transition() { return 1; }
+int DissolveMain::uses_gui() { return 0; }
+
+
+
+int DissolveMain::process_realtime(VFrame *incoming, VFrame *outgoing)
+{
+       fade = (float)PluginClient::get_source_position() / 
+                       PluginClient::get_total_len();
+
+// Use hardware
+       if(get_use_opengl())
+       {
+               run_opengl();
+               return 0;
+       }
+
+// Use software
+       if(!overlayer) overlayer = new OverlayFrame(get_project_smp() + 1);
+
+
+// There is a problem when dissolving from a big picture to a small picture.
+// In order to make it dissolve correctly, we have to manually decrese alpha of big picture.
+       switch (outgoing->get_color_model())
+       {
+               case BC_RGBA8888:
+               case BC_YUVA8888:
+               {
+                       uint8_t** data_rows = (uint8_t **)outgoing->get_rows();
+                       int w = outgoing->get_w();
+                       int h = outgoing->get_h(); 
+                       for(int i = 0; i < h; i++) 
+                       {
+                               uint8_t* alpha_chan = data_rows[i] + 3; 
+                               for(int j = 0; j < w; j++) 
+                               {
+                                       *alpha_chan = (uint8_t) (*alpha_chan * (1-fade));
+                                       alpha_chan+=4;
+                               }
+                       }
+                       break;
+               }
+               case BC_YUVA16161616:
+               {
+                       uint16_t** data_rows = (uint16_t **)outgoing->get_rows();
+                       int w = outgoing->get_w();
+                       int h = outgoing->get_h(); 
+                       for(int i = 0; i < h; i++)
+                       { 
+                               uint16_t* alpha_chan = data_rows[i] + 3; // 3 since this is uint16_t
+                               for(int j = 0; j < w; j++) 
+                               {
+                                       *alpha_chan = (uint16_t)(*alpha_chan * (1-fade));
+                                       alpha_chan += 8;
+                               } 
+                       }
+                       break;
+               }
+               case BC_RGBA_FLOAT:
+               {
+                       float** data_rows = (float **)outgoing->get_rows();
+                       int w = outgoing->get_w();
+                       int h = outgoing->get_h(); 
+                       for(int i = 0; i < h; i++) 
+                       { 
+                               float* alpha_chan = data_rows[i] + 3; // 3 since this is floats 
+                               for(int j = 0; j < w; j++) 
+                               {
+                                       *alpha_chan = *alpha_chan * (1-fade);
+                                       alpha_chan += sizeof(float);
+                               } 
+                       }
+                       break;
+               }
+               default:
+                       break;
+       }
+
+
+       overlayer->overlay(outgoing, 
+               incoming, 
+               0, 
+               0, 
+               incoming->get_w(),
+               incoming->get_h(),
+               0,
+               0,
+               incoming->get_w(),
+               incoming->get_h(),
+               fade,
+               TRANSFER_NORMAL,
+               NEAREST_NEIGHBOR);
+
+       return 0;
+}
+
+int DissolveMain::handle_opengl()
+{
+#ifdef HAVE_GL
+
+// Read images from RAM
+       get_input()->to_texture();
+       get_output()->to_texture();
+
+// Create output pbuffer
+       get_output()->enable_opengl();
+
+       VFrame::init_screen(get_output()->get_w(), get_output()->get_h());
+
+// Enable output texture
+       get_output()->bind_texture(0);
+// Draw output texture
+       glDisable(GL_BLEND);
+       glColor4f(1, 1, 1, 1);
+       get_output()->draw_texture();
+
+// Draw input texture
+       get_input()->bind_texture(0);
+       glEnable(GL_BLEND);
+       glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+       glColor4f(1, 1, 1, fade);
+       get_input()->draw_texture();
+
+
+       glDisable(GL_BLEND);
+       get_output()->set_opengl_state(VFrame::SCREEN);
+
+
+#endif
+       return 0;
+}
+
+
+