pp_exposure_readback.h

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#ifndef PP_EXPOSURE_READBACK_H
#define PP_EXPOSURE_READBACK_H
 
#include "gl_common.h"
#include <stdbool.h>
#include <stdint.h>
 
#define POSTPROCESS_HISTOGRAM_BUCKETS 256
 
typedef struct {
    GLuint
        exposure_pbo[2]; 
    GLuint histogram_pbo[2];  
    GLsync exposure_sync[2];  
    GLsync histogram_sync[2]; 
    float current_exposure;   
    float auto_threshold;     
    int last_buckets[POSTPROCESS_HISTOGRAM_BUCKETS];
    float last_min_lum;
    float last_max_lum;
    bool last_histogram_updated;
    uint64_t frame_count; 
} PPExposureReadback;
 
#endif /* PP_EXPOSURE_READBACK_H */