From bbf68d15e513d4799f651acd4fd9f88fe3a03ffd Mon Sep 17 00:00:00 2001
From: "bernard.xiong@gmail.com" <bernard.xiong@gmail.com>
Date: Sun, 5 Jun 2011 15:16:41 +0000
Subject: change graphic driver as RT-Thread device driver

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1454 bbd45198-f89e-11dd-88c7-29a3b14d5316
---
 components/rtgui/server/driver.c | 96 ++++++++++++++++++++--------------------
 1 file changed, 48 insertions(+), 48 deletions(-)

(limited to 'components/rtgui/server/driver.c')

diff --git a/components/rtgui/server/driver.c b/components/rtgui/server/driver.c
index 5e086f022e..43b4b8ac43 100644
--- a/components/rtgui/server/driver.c
+++ b/components/rtgui/server/driver.c
@@ -13,72 +13,72 @@
  */
 #include <rtgui/driver.h>
 
-#ifdef RTGUI_USING_GRAPHIC_DRIVER_LIST
-struct rtgui_list_node _rtgui_graphic_driver_list = {RT_NULL};
+struct rtgui_graphic_driver _driver;
 
-void rtgui_graphic_driver_add(struct rtgui_graphic_driver* driver)
+extern const struct rtgui_graphic_driver_ops *rtgui_pixel_device_get_ops(int pixel_format);
+extern const struct rtgui_graphic_driver_ops *rtgui_framebuffer_get_ops(int pixel_format);
+
+/* get default driver */
+struct rtgui_graphic_driver* rtgui_graphic_driver_get_default()
 {
-	rtgui_list_insert(&_rtgui_graphic_driver_list, &(driver->list));
+	return &_driver;
 }
 
-void rtgui_graphic_driver_remove(struct rtgui_graphic_driver* driver)
+void rtgui_graphic_driver_get_rect(const struct rtgui_graphic_driver *driver, rtgui_rect_t *rect)
 {
-	rtgui_list_remove(&_rtgui_graphic_driver_list, &(driver->list));
+	RT_ASSERT(rect != RT_NULL);
+	RT_ASSERT(driver != RT_NULL);
+
+	rect->x1 = rect->y1 = 0;
+	rect->x2 = driver->width;
+	rect->y2 = driver->height;
 }
 
-struct rtgui_graphic_driver* rtgui_graphic_driver_find(char* name)
+rt_err_t rtgui_graphic_set_device(rt_device_t device)
 {
-	struct rtgui_list_node* node;
-	struct rtgui_graphic_driver* driver;
+	rt_err_t result;
+	struct rt_lcd_info info;
 
-	/* search in list */
-	rtgui_list_foreach(node, &(_rtgui_graphic_driver_list))
+	/* get framebuffer address */
+	result = rt_device_control(device, LCD_GET_INFO, &info);
+	if (result != RT_EOK)
 	{
-		driver = rtgui_list_entry(node, struct rtgui_graphic_driver, list);
-
-		/* find it */
-		if (rt_strncmp(driver->name, name, RTGUI_NAME_MAX) == 0)
-		{
-			return driver;
-		}
+		/* get device information failed */
+		return -RT_ERROR;
 	}
 
-	return RT_NULL;
-}
-
-struct rtgui_graphic_driver* rtgui_graphic_driver_get_default()
-{
-	return rtgui_list_entry(_rtgui_graphic_driver_list.next,
-		struct rtgui_graphic_driver, list);
-}
-#else
-static const struct rtgui_graphic_driver* _default_graphic_driver = RT_NULL;
+	/* initialize framebuffer driver */
+	_driver.device = device;
+	_driver.pixel_format = info.pixel_format;
+	_driver.byte_per_pixel = info.byte_per_pixel;
+	_driver.width = info.width;
+	_driver.height = info.height;
+	_driver.pitch = _driver.width * _driver.byte_per_pixel;
+	_driver.framebuffer = info.framebuffer;
 
-void rtgui_graphic_driver_add(const struct rtgui_graphic_driver* driver)
-{
-	_default_graphic_driver = driver;
+	if (info.framebuffer != RT_NULL)
+	{
+		/* is a frame buffer device */
+		_driver.ops = rtgui_framebuffer_get_ops(_driver.pixel_format);
+	}
+	else
+	{
+		/* is a pixel device */
+		_driver.ops = rtgui_pixel_device_get_ops(_driver.pixel_format);
+	}
+	
+	return RT_EOK;
 }
 
-const struct rtgui_graphic_driver* rtgui_graphic_driver_get_default()
+/* screen update */
+void rtgui_graphic_driver_screen_update(struct rtgui_graphic_driver* driver, rtgui_rect_t *rect)
 {
-	return _default_graphic_driver;
-}
-#endif
-
-
-void rtgui_graphic_driver_get_rect(const struct rtgui_graphic_driver *driver, rtgui_rect_t *rect)
-{
-	RT_ASSERT(rect != RT_NULL);
-	RT_ASSERT(driver != RT_NULL);
-
-	rect->x1 = rect->y1 = 0;
-	rect->x2 = driver->width;
-	rect->y2 = driver->height;
+	rt_device_control(driver->device, LCD_RECT_UPDATE, rect);
 }
 
-void rtgui_graphic_driver_get_default_rect(rtgui_rect_t *rect)
+/* get video frame buffer */
+rt_uint8_t* rtgui_graphic_driver_get_framebuffer(struct rtgui_graphic_driver* driver)
 {
-	/* return default the extent of default driver */
-	rtgui_graphic_driver_get_rect(rtgui_graphic_driver_get_default(), rect);
+	return (rt_uint8_t*)driver->framebuffer;
 }
 
-- 
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