calibrate.h

在运行嵌入式Linux系统的、支持屏幕点击功能的手机上

#define CAL_XK   0
#define CAL_XX   1
#define CAL_XY   2
#define CAL_YK   3
#define CAL_YX   4
#define CAL_YY   5
#define CAL_S    6

typedef struct {
	int x[NR_POINTS], xfb[NR_POINTS], xscr[NR_POINTS];
	int y[NR_POINTS], yfb[NR_POINTS], yscr[NR_POINTS];
	int a[7];
} calibration;

extern int perform_calibration(calibration *cal);