SpanPack.h

#ifndef INCLUDED_SPAN_PACK
#define INCLUDED_SPAN_PACK

#ifndef INCLUDED_SPAN
#  include "Span.h"
#endif

#define MAX_SIZE_SPAN 64

class SpanPack {
public: /* fields */
    struct SpanInfo {
        int start;
        int size;
        int y_top;
        int light_pos[3];
        int light_rgb[3];
    } info; // 36

    Span span[MAX_SIZE_SPAN]; // 48*MAX_SIZE_SPAN = 3072
    SpanPack *next; // 4

    int pad[2]; // 8

    void init(int ytop) {
        this->info.start = 0;
        this->info.size = 0;
        this->info.y_top = ytop;
        this->next = NULL;
    }

    void reinit(int ytop) {
        SpanPack* top = this;
        SpanPack* p;
        SpanPack* p1;

        p = top->next;
        while (p != NULL) {
            p1 = p->next;
            free(p);
            p = p1;
        }
        
        this->info.start = 0;
        this->info.size = 0;
        this->info.y_top = ytop;
        this->next = NULL;
    }
};

typedef SpanPack* SpanPackPtr;

#endif

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