update graphic driver to const variable.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1460 bbd45198-f89e-11dd-88c7-29a3b14d5316

2 files changed, 4 insertions, 4 deletions

diff --git a/components/rtgui/include/rtgui/driver.h b/components/rtgui/include/rtgui/driver.h
index 1f929d2b02..89ff99f156 100644
--- a/components/rtgui/include/rtgui/driver.h
+++ b/components/rtgui/include/rtgui/driver.h
@@ -52,8 +52,8 @@ void rtgui_graphic_driver_add(const struct rtgui_graphic_driver* driver);
 struct rtgui_graphic_driver* rtgui_graphic_driver_get_default(void);

 

 void rtgui_graphic_driver_get_rect(const struct rtgui_graphic_driver *driver, rtgui_rect_t *rect);

-void rtgui_graphic_driver_screen_update(struct rtgui_graphic_driver* driver, rtgui_rect_t *rect);

-rt_uint8_t* rtgui_graphic_driver_get_framebuffer(struct rtgui_graphic_driver* driver);

+void rtgui_graphic_driver_screen_update(const struct rtgui_graphic_driver* driver, rtgui_rect_t *rect);

+rt_uint8_t* rtgui_graphic_driver_get_framebuffer(const struct rtgui_graphic_driver* driver);

 

 rt_err_t rtgui_graphic_set_device(rt_device_t device);

 

diff --git a/components/rtgui/server/driver.c b/components/rtgui/server/driver.c
index 93f0195d69..67e4aee909 100644
--- a/components/rtgui/server/driver.c
+++ b/components/rtgui/server/driver.c
@@ -72,7 +72,7 @@ rt_err_t rtgui_graphic_set_device(rt_device_t device)
 }
 
 /* screen update */
-void rtgui_graphic_driver_screen_update(struct rtgui_graphic_driver* driver, rtgui_rect_t *rect)
+void rtgui_graphic_driver_screen_update(const struct rtgui_graphic_driver* driver, rtgui_rect_t *rect)
 {
 	struct rt_device_rect_info rect_info;
 
@@ -83,7 +83,7 @@ void rtgui_graphic_driver_screen_update(struct rtgui_graphic_driver* driver, rtg
 }
 
 /* get video frame buffer */
-rt_uint8_t* rtgui_graphic_driver_get_framebuffer(struct rtgui_graphic_driver* driver)
+rt_uint8_t* rtgui_graphic_driver_get_framebuffer(const struct rtgui_graphic_driver* driver)
 {
 	return (rt_uint8_t*)driver->framebuffer;
 }