28 int rec_history_init(rec_history_t *history, int x, int y,  in rec_history_init()  argument
34     history->x = x;  in rec_history_init()
35     history->y = y;  in rec_history_init()
37 	history->x_history[i] = x;  in rec_history_init()
38 	history->y_history[i] = y;  in rec_history_init()
41     history->width = width;  in rec_history_init()
42     history->height = height;  in rec_history_init()
44 	history->width_history[i] = width;  in rec_history_init()
45 	history->height_history[i] = height;  in rec_history_init()
49     history->orientation = orientation;  in rec_history_init()
51 	history->orientation_history[i] = orientation;  in rec_history_init()
57 void rec_history_deinit(rec_history_t *history)  in rec_history_deinit()  argument
62 void rec_history_update_position(rec_history_t *history, int x, int y)  in rec_history_update_position()  argument
67 	history->x_history[i] = history->x_history[i+1];  in rec_history_update_position()
68 	history->y_history[i] = history->y_history[i+1];  in rec_history_update_position()
70     history->x_history[i] = x;  in rec_history_update_position()
71     history->y_history[i] = y;  in rec_history_update_position()
73     history->x = 0;  in rec_history_update_position()
74     history->y = 0;  in rec_history_update_position()
76 	history->x += history->x_history[i];  in rec_history_update_position()
77 	history->y += history->y_history[i];  in rec_history_update_position()
79     history->x /= RH_POS_SAMPLES;  in rec_history_update_position()
80     history->y /= RH_POS_SAMPLES;  in rec_history_update_position()
83 void rec_history_update_size(rec_history_t *history, int width, int height)  in rec_history_update_size()  argument
88 	history->width_history[i] = history->width_history[i+1];  in rec_history_update_size()
89 	history->height_history[i] = history->height_history[i+1];  in rec_history_update_size()
91     history->width_history[i] = width;  in rec_history_update_size()
92     history->height_history[i] = height;  in rec_history_update_size()
94     history->width = 0;  in rec_history_update_size()
95     history->height = 0;  in rec_history_update_size()
97 	history->width += history->width_history[i];  in rec_history_update_size()
98 	history->height += history->height_history[i];  in rec_history_update_size()
100     history->width /= RH_SIZE_SAMPLES;  in rec_history_update_size()
101     history->height /= RH_SIZE_SAMPLES;  in rec_history_update_size()
104 void rec_history_nudge_orientation(rec_history_t *history, double correction)  in rec_history_nudge_orientation()  argument
109 	history->orientation_history[i] = history->orientation_history[i+1];  in rec_history_nudge_orientation()
111     history->orientation_history[i] = history->orientation + correction;  in rec_history_nudge_orientation()
113     history->orientation = 0.0;  in rec_history_nudge_orientation()
115 	history->orientation += history->orientation_history[i];  in rec_history_nudge_orientation()
117     history->orientation /= (double) RH_ORIENTATION_SAMPLES;  in rec_history_nudge_orientation()