postprocess_readback.h

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#ifndef POSTPROCESS_READBACK_H
#define POSTPROCESS_READBACK_H
 
#include <glad/glad.h>
 
#include <cglm/types.h>
#include <stdint.h>
 
typedef struct PostProcess PostProcess;
 
void postprocess_update_time(PostProcess* post_processing, float delta_time);
 
GLuint postprocess_get_exposure_pbo(PostProcess* post_processing, int index);
GLuint postprocess_get_histogram_pbo(PostProcess* post_processing, int index);
GLsync postprocess_get_exposure_sync(PostProcess* post_processing, int index);
GLsync postprocess_get_histogram_sync(PostProcess* post_processing, int index);
void postprocess_set_exposure_sync(PostProcess* post_processing, int index,
                                   GLsync sync);
void postprocess_set_histogram_sync(PostProcess* post_processing, int index,
                                    GLsync sync);
 
void postprocess_update_readbacks(PostProcess* post_processing,
                                  uint64_t frame_count);
 
void postprocess_set_exposure_target(PostProcess* post_processing,
                                     float threshold);
 
void postprocess_update_matrices(PostProcess* post_processing, mat4 view_proj);
 
int postprocess_compute_luminance_histogram(PostProcess* post_processing,
                                            uint64_t frame_count, int* buckets,
                                            int size, float* min_lum,
                                            float* max_lum);
 
#endif /* POSTPROCESS_READBACK_H */