rt-thread-official/bsp/mini2440/calibration.c

299 lines
8.4 KiB
C

#include <rtgui/rtgui.h>
#include <rtgui/dc.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/window.h>
#include <rtgui/rtgui_app.h>
#include "touch.h"
#define CALIBRATION_STEP_LEFTTOP 0
#define CALIBRATION_STEP_RIGHTTOP 1
#define CALIBRATION_STEP_RIGHTBOTTOM 2
#define CALIBRATION_STEP_LEFTBOTTOM 3
#define CALIBRATION_STEP_CENTER 4
#define TOUCH_WIN_UPDATE 1
#define TOUCH_WIN_CLOSE 2
#define CALIBRATION_WIDTH 15
#define CALIBRATION_HEIGHT 15
struct calibration_session
{
rt_uint8_t step;
struct calibration_data data;
rt_uint16_t width;
rt_uint16_t height;
rt_device_t device;
rt_thread_t tid;
struct rtgui_win *wid;
};
static struct calibration_session *calibration_ptr = RT_NULL;
static void calibration_data_post(rt_uint16_t x, rt_uint16_t y)
{
if (calibration_ptr != RT_NULL)
{
switch (calibration_ptr->step)
{
case CALIBRATION_STEP_LEFTTOP:
calibration_ptr->data.min_x = x;
calibration_ptr->data.min_y = y;
break;
case CALIBRATION_STEP_RIGHTTOP:
calibration_ptr->data.max_x = x;
calibration_ptr->data.min_y = (calibration_ptr->data.min_y + y)/2;
break;
case CALIBRATION_STEP_LEFTBOTTOM:
calibration_ptr->data.min_x = (calibration_ptr->data.min_x + x)/2;
calibration_ptr->data.max_y = y;
break;
case CALIBRATION_STEP_RIGHTBOTTOM:
calibration_ptr->data.max_x = (calibration_ptr->data.max_x + x)/2;
calibration_ptr->data.max_y = (calibration_ptr->data.max_y + y)/2;
break;
case CALIBRATION_STEP_CENTER:
/* calibration done */
{
rt_uint16_t w, h;
struct rtgui_event_command ecmd;
RTGUI_EVENT_COMMAND_INIT(&ecmd);
ecmd.command_id = TOUCH_WIN_CLOSE;
ecmd.wid = calibration_ptr->wid;
/* calculate calibrated data */
if (calibration_ptr->data.max_x > calibration_ptr->data.min_x)
w = calibration_ptr->data.max_x - calibration_ptr->data.min_x;
else
w = calibration_ptr->data.min_x - calibration_ptr->data.max_x;
w = (w/(calibration_ptr->width - 2 * CALIBRATION_WIDTH)) * CALIBRATION_WIDTH;
if (calibration_ptr->data.max_y > calibration_ptr->data.min_y)
h = calibration_ptr->data.max_y - calibration_ptr->data.min_y;
else
h = calibration_ptr->data.min_y - calibration_ptr->data.max_y;
h = (h/(calibration_ptr->height - 2 * CALIBRATION_HEIGHT)) * CALIBRATION_HEIGHT;
rt_kprintf("w: %d, h: %d\n", w, h);
if (calibration_ptr->data.max_x > calibration_ptr->data.min_x)
{
calibration_ptr->data.min_x -= w;
calibration_ptr->data.max_x += w;
}
else
{
calibration_ptr->data.min_x += w;
calibration_ptr->data.max_x -= w;
}
if (calibration_ptr->data.max_y > calibration_ptr->data.min_y)
{
calibration_ptr->data.min_y -= h;
calibration_ptr->data.max_y += h;
}
else
{
calibration_ptr->data.min_y += h;
calibration_ptr->data.max_y -= h;
}
rt_kprintf("calibration data: (%d, %d), (%d, %d)\n",
calibration_ptr->data.min_x,
calibration_ptr->data.max_x,
calibration_ptr->data.min_y,
calibration_ptr->data.max_y);
rtgui_send(calibration_ptr->tid, &ecmd.parent, sizeof(struct rtgui_event_command));
}
return;
}
calibration_ptr->step ++;
/* post command event */
{
struct rtgui_event_command ecmd;
RTGUI_EVENT_COMMAND_INIT(&ecmd);
ecmd.command_id = TOUCH_WIN_UPDATE;
ecmd.wid = calibration_ptr->wid;
rtgui_send(calibration_ptr->tid, &ecmd.parent, sizeof(struct rtgui_event_command));
}
}
}
rt_bool_t calibration_event_handler(struct rtgui_object *object, struct rtgui_event *event)
{
struct rtgui_widget *widget;
widget = RTGUI_WIDGET(object);
switch (event->type)
{
case RTGUI_EVENT_PAINT:
{
struct rtgui_dc *dc;
struct rtgui_rect rect;
dc = rtgui_dc_begin_drawing(widget);
if (dc == RT_NULL)
break;
/* get rect information */
rtgui_widget_get_rect(widget, &rect);
/* clear whole window */
RTGUI_WIDGET_BACKGROUND(widget) = white;
rtgui_dc_fill_rect(dc, &rect);
/* reset color */
RTGUI_WIDGET_BACKGROUND(widget) = green;
RTGUI_WIDGET_FOREGROUND(widget) = black;
switch (calibration_ptr->step)
{
case CALIBRATION_STEP_LEFTTOP:
rtgui_dc_draw_hline(dc, 0, 2 * CALIBRATION_WIDTH, CALIBRATION_HEIGHT);
rtgui_dc_draw_vline(dc, CALIBRATION_WIDTH, 0, 2 * CALIBRATION_HEIGHT);
RTGUI_WIDGET_FOREGROUND(widget) = red;
rtgui_dc_fill_circle(dc, CALIBRATION_WIDTH, CALIBRATION_HEIGHT, 4);
break;
case CALIBRATION_STEP_RIGHTTOP:
rtgui_dc_draw_hline(dc, calibration_ptr->width - 2 * CALIBRATION_WIDTH,
calibration_ptr->width, CALIBRATION_HEIGHT);
rtgui_dc_draw_vline(dc, calibration_ptr->width - CALIBRATION_WIDTH, 0, 2 * CALIBRATION_HEIGHT);
RTGUI_WIDGET_FOREGROUND(widget) = red;
rtgui_dc_fill_circle(dc, calibration_ptr->width - CALIBRATION_WIDTH, CALIBRATION_HEIGHT, 4);
break;
case CALIBRATION_STEP_LEFTBOTTOM:
rtgui_dc_draw_hline(dc, 0, 2 * CALIBRATION_WIDTH, calibration_ptr->height - CALIBRATION_HEIGHT);
rtgui_dc_draw_vline(dc, CALIBRATION_WIDTH, calibration_ptr->height - 2 * CALIBRATION_HEIGHT, calibration_ptr->height);
RTGUI_WIDGET_FOREGROUND(widget) = red;
rtgui_dc_fill_circle(dc, CALIBRATION_WIDTH, calibration_ptr->height - CALIBRATION_HEIGHT, 4);
break;
case CALIBRATION_STEP_RIGHTBOTTOM:
rtgui_dc_draw_hline(dc, calibration_ptr->width - 2 * CALIBRATION_WIDTH,
calibration_ptr->width, calibration_ptr->height - CALIBRATION_HEIGHT);
rtgui_dc_draw_vline(dc, calibration_ptr->width - CALIBRATION_WIDTH, calibration_ptr->height - 2 * CALIBRATION_HEIGHT, calibration_ptr->height);
RTGUI_WIDGET_FOREGROUND(widget) = red;
rtgui_dc_fill_circle(dc, calibration_ptr->width - CALIBRATION_WIDTH, calibration_ptr->height - CALIBRATION_HEIGHT, 4);
break;
case CALIBRATION_STEP_CENTER:
rtgui_dc_draw_hline(dc, calibration_ptr->width/2 - CALIBRATION_WIDTH, calibration_ptr->width/2 + CALIBRATION_WIDTH, calibration_ptr->height/2);
rtgui_dc_draw_vline(dc, calibration_ptr->width/2, calibration_ptr->height/2 - CALIBRATION_HEIGHT, calibration_ptr->height/2 + CALIBRATION_HEIGHT);
RTGUI_WIDGET_FOREGROUND(widget) = red;
rtgui_dc_fill_circle(dc, calibration_ptr->width/2, calibration_ptr->height/2, 4);
break;
}
rtgui_dc_end_drawing(dc);
}
break;
case RTGUI_EVENT_COMMAND:
{
struct rtgui_event_command *ecmd = (struct rtgui_event_command *)event;
switch (ecmd->command_id)
{
case TOUCH_WIN_UPDATE:
rtgui_widget_update(widget);
break;
case TOUCH_WIN_CLOSE:
rtgui_win_close(RTGUI_WIN(widget));
break;
}
}
return RT_TRUE;
default:
rtgui_win_event_handler(RTGUI_OBJECT(widget), event);
break;
}
return RT_FALSE;
}
void calibration_entry(void *parameter)
{
struct rtgui_app *app;
struct rtgui_win *win;
struct rtgui_rect rect;
app = rtgui_app_create(rt_thread_self(), "cali");
if (app == RT_NULL)
return;
rtgui_graphic_driver_get_rect(rtgui_graphic_driver_get_default(), &rect);
/* set screen rect */
calibration_ptr->width = rect.x2;
calibration_ptr->height = rect.y2;
/* create calibration window */
win = rtgui_win_create(RT_NULL,
"calibration", &rect, RTGUI_WIN_STYLE_NO_TITLE | RTGUI_WIN_STYLE_NO_BORDER);
if (win == RT_NULL)
{
rtgui_app_destroy(app);
return;
}
calibration_ptr->wid = win;
rtgui_object_set_event_handler(RTGUI_OBJECT(win), calibration_event_handler);
rtgui_win_show(win, RT_TRUE);
rtgui_win_destroy(win);
rtgui_app_destroy(app);
/* set calibration data */
rt_device_control(calibration_ptr->device, RT_TOUCH_CALIBRATION_DATA, &calibration_ptr->data);
/* recover to normal */
rt_device_control(calibration_ptr->device, RT_TOUCH_NORMAL, RT_NULL);
/* release memory */
rt_free(calibration_ptr);
calibration_ptr = RT_NULL;
}
void calibration_init(void)
{
rt_device_t device;
device = rt_device_find("touch");
if (device == RT_NULL)
return;
calibration_ptr = (struct calibration_session *)rt_malloc(sizeof(struct calibration_session));
rt_memset(calibration_ptr, 0, sizeof(struct calibration_data));
calibration_ptr->device = device;
rt_device_control(calibration_ptr->device, RT_TOUCH_CALIBRATION, (void *)calibration_data_post);
calibration_ptr->tid = rt_thread_create("cali", calibration_entry, RT_NULL, 2048, 20, 5);
if (calibration_ptr->tid != RT_NULL)
rt_thread_startup(calibration_ptr->tid);
}
#ifdef RT_USING_FINSH
#include <finsh.h>
void calibration(void)
{
calibration_init();
}
FINSH_FUNCTION_EXPORT(calibration, perform touch calibration);
#endif