Image.h

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#ifndef FCAM_IMAGE_H
#define FCAM_IMAGE_H

#include "Base.h"
#include <stdio.h>
#include <pthread.h>

namespace FCam {

    class Image {
      public:
        Size size;

    ImageFormat type;

    unsigned char * const data;


    static unsigned char *Discard;

    static unsigned char *AutoAllocate;

    ~Image();

    Image(Size, ImageFormat);
    Image(int, int, ImageFormat);


    Image(Size, ImageFormat, unsigned char *);
    Image(int, int, ImageFormat, unsigned char *);

    Image();

    Image(const Image &other); 

    const Image &operator=(const Image &other);

    void setData(unsigned char *);

    void debug() const {
        printf("Image at %x with dimensions %d %d type %d data %x refCount %x = (%d), mutex %x, holdingLock %d\n",
           (unsigned)this,
           size.width, size.height,
           type,
           (unsigned)data,
           (unsigned)refCount,
           refCount ? *refCount : 0,
           (unsigned)mutex,
           (holdingLock ? 1 : 0));
    };

    bool valid() {
        return (data != Image::Discard && data != Image::AutoAllocate);
    }

    bool lock(int timeout = -1);

    void unlock();

      private:
    unsigned int *refCount;
    pthread_mutex_t *mutex; 

    // Is this a weak reference to somebody else's data?
    bool weak;

    // Does this reference currently have the image locked?
    bool holdingLock;

    };

}

#endif

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