include/FCam/N900/Flash.h

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#ifndef FCAM_N900_FLASH_H
#define FCAM_N900_FLASH_H

#include "../Flash.h"
#include "../CircularBuffer.h"
#include "../Time.h"
#include <vector>

namespace FCam { 
    namespace N900 {

        class Flash : public FCam::Flash {
          public:
            Flash();
            ~Flash();

            int minDuration() {return 55600;}

            int maxDuration() {return 492400;}
        
            float minBrightness() {return 2.0f;}

            float maxBrightness() {return 19.0f;}

            /* fire the flash for a given brightness and duration. The
             * brightness and duration will be clamped to the values
             * specified above. */
            void fire(float brightness, int duration);

            int fireLatency() {return 3450;}            

            float getBrightness(Time);

            void tagFrame(FCam::Frame);

          private:

            void setDuration(int);
            void setBrightness(float);

            struct FlashState {
                // Assume the flash state is piecewise constant. This
                // struct indicates a period of a constant brightness
                // starting at the given time.
                Time time;
                float brightness;
            };
            
            CircularBuffer<FlashState> flashHistory; 
        };
    }
}


#endif