hvirtual/cinelerra/maskengine.h

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#ifndef MASKENGINE_H
#define MASKENGINE_H


#include "condition.inc"
#include "loadbalance.h"
#include "maskautos.inc"
#include "maskauto.inc"
#include "mutex.h"
#include "vframe.inc"


#define OVERSAMPLE 8
#define NUM_SPANS 4 /* starting number of spans to be allocated for */

class MaskEngine;


enum
{
        RECALCULATE_PART,
        APPLY_PART
};


class MaskPackage : public LoadPackage
{
public:
        MaskPackage();
        ~MaskPackage();

        int row1, row2;
};

class MaskUnit : public LoadClient
{
public:
        MaskUnit(MaskEngine *engine);
        ~MaskUnit();

        void process_package(LoadPackage *package);
private:
        void draw_line_clamped(int x1, int y1, int x2, int y2, int w, int h, int hoffset);
        void do_feather(VFrame *output,
                VFrame *input, 
                float feather, 
                int start_out, 
                int end_out);
        int do_feather_2(VFrame *output,
                VFrame *input, 
                float feather, 
                int start_out, 
                int end_out);
        template<class T>
        void blur_strip(float *val_p, 
                float *val_m, 
                float *dst, 
                float *src, 
                int size,
                T max);

    float n_p[5], n_m[5];
    float d_p[5], d_m[5];
    float bd_p[5], bd_m[5];
        MaskEngine *engine;
        short **row_spans;
        short row_spans_h;
};


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


        void do_mask(VFrame *output, 
                int64_t start_position,
                double frame_rate,
                double project_frame_rate,
                MaskAutos *keyframe_set, 
                int direction,
                int before_plugins);
        int points_equivalent(ArrayList<MaskPoint*> *new_points, 
                ArrayList<MaskPoint*> *points);

        void delete_packages();
        void init_packages();
        LoadClient* new_client();
        LoadPackage* new_package();

        VFrame *output;
// State of last mask
        VFrame *mask;
// Temporary for feathering
        VFrame *temp_mask;
        ArrayList<ArrayList<MaskPoint*>*> point_sets;
        int mode;
        float feather;              // gui feather
        float realfeather;          // real feather
        int recalculate;
        int value;
        pthread_mutex_t stage1_finished_mutex;
        pthread_cond_t stage1_finished_cond;
        int stage1_finished_count;
        Mutex protect_data;     // protects the following members
        int first_nonempty_rowspan;
        int last_nonempty_rowspan;
};



#endif

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