hvirtual/cinelerra/fadeengine.h

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#ifndef FADEENGINE_H
#define FADEENGINE_H

#include "loadbalance.h"
#include "vframe.inc"


class FadeEngine;

class FadePackage : public LoadPackage
{
public:
        FadePackage();

        int out_row1, out_row2;
};



class FadeUnit : public LoadClient
{
public:
        FadeUnit(FadeEngine *engine);
        ~FadeUnit();
        
        void process_package(LoadPackage *package);
        
        FadeEngine *engine;
};

class FadeEngine : public LoadServer
{
public:
        FadeEngine(int cpus);
        ~FadeEngine();

// the input pointer is never different than the output pointer in any
// of the callers
        void do_fade(VFrame *output, VFrame *input, float alpha);
        
        void init_packages();
        LoadClient* new_client();
        LoadPackage* new_package();
        
        VFrame *output;
        VFrame *input;
        float alpha;
};



#endif

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