ra8_display_pal_policy.h

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#pragma once
 
#include <stdint.h>
 
#include "ra8_display_pal.h"
#include "ra8_err.h"

typedef enum : uint8_t {
  k_display_policy_fast_only  = 0U, 
  k_display_policy_quality    = 1U, 
  k_display_policy_fast_clean = 2U, 
} display_policy_kind_t;

typedef enum : uint8_t {
  k_display_event_open    = 0U, 
  k_display_event_turn    = 1U, 
  k_display_event_chapter = 2U, 
} display_turn_event_t;

typedef enum : uint16_t {
  k_display_policy_clean_every_default = 8U,   
  k_display_policy_clean_every_min     = 1U,   
  k_display_policy_clean_every_max     = 256U, 
} display_policy_const_t;

typedef struct {
  uint8_t  kind;              
  uint16_t clean_every;       
  uint16_t turns_since_clean; 
} display_policy_t;

typedef struct {
  display_refresh_hint_t hint;        
  bool                   full_update; 
} display_policy_decision_t;

[[nodiscard]] ra8_err_t
display_policy_init(display_policy_t* p, display_policy_kind_t kind, uint16_t clean_every);

[[nodiscard]] ra8_err_t display_policy_decide(display_policy_t*          p,
                                              display_turn_event_t       event,
                                              display_policy_decision_t* out);

[[nodiscard]] ra8_err_t display_policy_full_rect(uint16_t w, uint16_t h, display_rect_t* out);