touch_map.h

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#pragma once
 
#include "touch_types.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct {
    int16_t          src_w;    
    int16_t          src_h;    
    bool             mirror_x; 
    bool             mirror_y; 
    touch_rotation_t rotation; 
} touch_map_t;

void touch_map_size(const touch_map_t *m, int16_t *w, int16_t *h);

void touch_map_apply(const touch_map_t *m, int16_t x, int16_t y,
                     int16_t *out_x, int16_t *out_y);

void touch_map_point(const touch_map_t *m, touch_point_t *p);

touch_map_t touch_map_turned(const touch_map_t *m, bool turned);

void touch_map_points(const touch_map_t *m, touch_point_t *pts, int n);

int touch_map_crop(touch_point_t *pts, int count, int16_t w, int16_t h);
 
/* ----------------------------------------------------------------- tracker */

typedef struct {
    touch_point_t prev[TOUCH_MAX_POINTS];  
    uint8_t       prev_count;              
} touch_tracker_t;

void touch_tracker_reset(touch_tracker_t *t);

#define TOUCH_JUMP_PX 120

int touch_tracker_update(touch_tracker_t *t,
                         const touch_point_t *cur, int cur_count,
                         touch_event_t *out, int max_out);
 
#ifdef __cplusplus
}
#endif