hvirtual/cinelerra/module.C

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#include "attachmentpoint.h"
#include "bcsignals.h"
#include "commonrender.h"
#include "edl.h"
#include "edlsession.h"
#include "filexml.h"
#include "module.h"
#include "mwindow.h"
#include "patch.h"
#include "patchbay.h"
#include "plugin.h"
#include "pluginarray.h"
#include "pluginserver.h"
#include "renderengine.h"
#include "sharedlocation.h"
#include "track.h"
#include "tracks.h"
#include "transportque.h"


Module::Module(RenderEngine *renderengine, 
        CommonRender *commonrender, 
        PluginArray *plugin_array,
        Track *track)
{
        this->renderengine = renderengine;
        this->commonrender = commonrender;
        this->plugin_array = plugin_array;
        this->track = track;
        transition = 0;
        transition_server = 0;
        attachments = 0;
        total_attachments = 0;
        new_total_attachments = 0;
        new_attachments = 0;
}

Module::~Module()
{
        if(attachments)
        {
                for(int i = 0; i < track->plugin_set.total; i++)
                {
                        if(attachments[i])
                        {
// For some reason it isn't used here.
//                              attachments[i]->render_stop(0);
                                delete attachments[i];
                        }
                }
                delete [] attachments;
        }
        if(transition_server)
        {
                transition_server->close_plugin();
                delete transition_server;
        }
}

void Module::create_objects()
{
        create_new_attachments();
        swap_attachments();
}

EDL* Module::get_edl()
{
        if(renderengine) 
                return renderengine->edl;
        else
                return edl;
}

void Module::create_new_attachments()
{
// Not used in pluginarray
        if(commonrender)
        {
                new_total_attachments = track->plugin_set.total;
                if(new_total_attachments)
                {
                        new_attachments = new AttachmentPoint*[new_total_attachments];
                        for(int i = 0; i < new_total_attachments; i++)
                        {
                                Plugin *plugin = 
                                        track->get_current_plugin(commonrender->current_position, 
                                                i, 
                                                renderengine->command->get_direction(),
                                                0,
                                                1);

                                if(plugin && plugin->plugin_type != PLUGIN_NONE && plugin->on)
                                        new_attachments[i] = new_attachment(plugin);
                                else
                                        new_attachments[i] = 0;
                        }
                }
                else
                        new_attachments = 0;

// Create plugin servers in virtual console expansion
        }
}

void Module::swap_attachments()
{
// None of this is used in a pluginarray
        for(int i = 0; 
                i < new_total_attachments &&
                i < total_attachments; 
                i++)
        {
// Delete new attachment which is identical to the old one and copy
// old attachment.
                if(new_attachments[i] &&
                        attachments[i] &&
                        new_attachments[i]->identical(attachments[i]))
                {
                        delete new_attachments[i];
                        new_attachments[i] = attachments[i];
                        attachments[i] = 0;
                }
        }

// Delete old attachments which weren't identical to new ones
        for(int i = 0; i < total_attachments; i++)
        {
                if(attachments[i]) delete attachments[i];
        }

        if(attachments)
        {
                delete [] attachments;
        }

        attachments = new_attachments;
        total_attachments = new_total_attachments;
}

int Module::render_init()
{
        for(int i = 0; i < total_attachments; i++)
        {
                if(attachments[i])
                        attachments[i]->render_init();
        }

        return 0;
}

void Module::render_stop()
{
        for(int i = 0; i < total_attachments; i++)
        {
                if(attachments[i])
                        attachments[i]->render_stop();
        }
}

AttachmentPoint* Module::attachment_of(Plugin *plugin)
{
//printf("Module::attachment_of 1 %d\n", total_attachments);
        for(int i = 0; i < total_attachments; i++)
        {
//printf("Module::attachment_of 2 %p\n", attachments[i]);
                if(attachments[i] && 
                        attachments[i]->plugin == plugin) return attachments[i];
        }
        return 0;
}

AttachmentPoint* Module::get_attachment(int number)
{
        if(number < total_attachments)
                return attachments[number];
        else
                return 0;
}

void Module::reset_attachments()
{
//printf("Module::reset_attachments 1 %d\n", total_attachments);
        for(int i = 0; i < total_attachments; i++)
        {
//printf("Module::reset_attachments 2 %p\n", attachments[i]);
                AttachmentPoint *attachment = attachments[i];
                if(attachment) attachment->reset_status();
        }
}

// Test plugins for reconfiguration.
// Used in playback
int Module::test_plugins()
{
        if(total_attachments != track->plugin_set.total) return 1;

        for(int i = 0; i < total_attachments; i++)
        {
                AttachmentPoint *attachment = attachments[i];
                Plugin *plugin = track->get_current_plugin(
                        commonrender->current_position, 
                        i, 
                        renderengine->command->get_direction(),
                        0,
                        1);
// One exists and one doesn't
                int use_plugin = plugin &&
                        plugin->plugin_type != PLUGIN_NONE &&
                        plugin->on;

                if((attachment && !use_plugin) || 
                        (!attachment && use_plugin)) return 1;

// Plugin not the same
                if(plugin && 
                        attachment &&
                        attachment->plugin && 
                        !plugin->identical(attachment->plugin)) return 1;
        }

        return 0;
}

void Module::update_transition(int64_t current_position, 
        int direction)
{
        transition = track->get_current_transition(current_position,
                direction,
                0,
                0); // position is already nudged in amodule.C and vmodule.C before calling update_transition!

// For situations where we had a transition but not anymore, 
// keep the server open.
// Maybe the same transition will follow and we won't need to reinit.
// (happens a lot while scrubbing over transitions left and right)


// If the current transition differs from the previous transition, delete the
// server.
        if (transition && 
                transition_server)
        {
                if (strcmp(transition->title, transition_server->plugin->title))
                {
                        transition_server->close_plugin();
                        delete transition_server;
                        transition_server = 0;
                } else
                {
                        transition_server->plugin = transition;
                }
        }

        if(transition && !transition_server)
        {
                if(renderengine)
                {
                        PluginServer *plugin_server = renderengine->scan_plugindb(transition->title,
                                track->data_type);
                        transition_server = new PluginServer(*plugin_server);
                        transition_server->open_plugin(0, 
                                renderengine->preferences, 
                                get_edl(), 
                                transition,
                                -1);
                        transition_server->init_realtime(
                                get_edl()->session->real_time_playback &&
                                renderengine->command->realtime,
                                1,
                                get_buffer_size());
                }
                else
                if(plugin_array)
                {
                        PluginServer *plugin_server = plugin_array->scan_plugindb(transition->title);
                        transition_server = new PluginServer(*plugin_server);
                        transition_server->open_plugin(0, 
                                plugin_array->mwindow->preferences,
                                get_edl(), 
                                transition,
                                -1);
                        transition_server->init_realtime(
                                0,
                                1,
                                get_buffer_size());
                }
        }
}


void Module::dump()
{
        printf("  Module title=%s\n", track->title);
        printf("   Plugins total_attachments=%d\n", total_attachments);
        for(int i = 0; i < total_attachments; i++)
        {
                attachments[i]->dump();
        }
}

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