add double buffer support in driver.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@701 bbd45198-f89e-11dd-88c7-29a3b14d5316

3 files changed, 69 insertions, 21 deletions

diff --git a/bsp/mini2440/lcd_a70.c b/bsp/mini2440/lcd_a70.c
index 933423a6fd..fe45948733 100644
--- a/bsp/mini2440/lcd_a70.c
+++ b/bsp/mini2440/lcd_a70.c
@@ -111,6 +111,7 @@
 

 #define	S3C2410_LCDINT_FRSYNC	(1<<1)

 

+volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 

 void lcd_power_enable(int invpwren,int pwren)

@@ -170,19 +171,34 @@ void LcdBkLtSet(rt_uint32_t HiRatio)
 

 void rt_hw_lcd_update(rtgui_rect_t *rect)

 {

-	/* nothing */

+	rt_uint16_t *src_ptr, *dst_ptr;

+	rt_uint32_t pitch, index;

+

+	pitch = 2 * (rect->x2 - rect->x1);

+

+	/* copy from framebuffer to physical framebuffer */

+	src_ptr = &_rt_framebuffer[rect->x1][rect->y1];

+	dst_ptr = &_rt_hw_framebuffer[rect->x1][rect->y1];

+

+	for (index = rect->y1; index < rect->y2; index ++)

+	{

+		memcpy(dst_ptr, src_ptr, pitch);

+

+		src_ptr += (rect->x2 - rect->x1);

+		dst_ptr += (rect->x2 - rect->x1);

+	}

 }

 

 rt_uint8_t * rt_hw_lcd_get_framebuffer(void)

 {

-	return (rt_uint8_t *)_rt_hw_framebuffer;

+	return (rt_uint8_t *)_rt_framebuffer;

 }

 

 void rt_hw_lcd_set_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)

 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		_rt_hw_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

+		_rt_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

 	}

 }

 

@@ -190,7 +206,7 @@ void rt_hw_lcd_get_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)
 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		*c = rtgui_color_from_565p(_rt_hw_framebuffer[(y)][(x)]);

+		*c = rtgui_color_from_565p(_rt_framebuffer[(y)][(x)]);

 	}

 

     return ;

@@ -206,7 +222,7 @@ void rt_hw_lcd_draw_hline(rtgui_color_t *c, rt_base_t x1, rt_base_t x2, rt_base_
 

 	for (idx = x1; idx < x2; idx ++)

 	{

-		_rt_hw_framebuffer[y][idx] = color;

+		_rt_framebuffer[y][idx] = color;

 	}

 }

 

@@ -220,13 +236,13 @@ void rt_hw_lcd_draw_vline(rtgui_color_t *c, rt_base_t x, rt_base_t y1, rt_base_t
 

 	for (idy = y1; idy < y2; idy ++)

 	{

-		_rt_hw_framebuffer[idy][x] = color;

+		_rt_framebuffer[idy][x] = color;

 	}

 }

 

 void rt_hw_lcd_draw_raw_hline(rt_uint8_t *pixels, rt_base_t x1, rt_base_t x2, rt_base_t y)

 {

-    rt_memcpy((void*)&_rt_hw_framebuffer[y][x1], pixels, (x2 - x1) * 2);

+    rt_memcpy((void*)&_rt_framebuffer[y][x1], pixels, (x2 - x1) * 2);

 }

 

 struct rtgui_graphic_driver _rtgui_lcd_driver =

diff --git a/bsp/mini2440/lcd_n35.c b/bsp/mini2440/lcd_n35.c
index c867659556..b135048234 100644
--- a/bsp/mini2440/lcd_n35.c
+++ b/bsp/mini2440/lcd_n35.c
@@ -111,6 +111,7 @@
 

 #define	S3C2410_LCDINT_FRSYNC	(1<<1)

 

+volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 

 void lcd_power_enable(int invpwren,int pwren)

@@ -170,19 +171,34 @@ void LcdBkLtSet(rt_uint32_t HiRatio)
 

 void rt_hw_lcd_update(rtgui_rect_t *rect)

 {

-	/* nothing */

+	rt_uint16_t *src_ptr, *dst_ptr;

+	rt_uint32_t pitch, index;

+

+	pitch = 2 * (rect->x2 - rect->x1);

+

+	/* copy from framebuffer to physical framebuffer */

+	src_ptr = &_rt_framebuffer[rect->x1][rect->y1];

+	dst_ptr = &_rt_hw_framebuffer[rect->x1][rect->y1];

+

+	for (index = rect->y1; index < rect->y2; index ++)

+	{

+		memcpy(dst_ptr, src_ptr, pitch);

+

+		src_ptr += (rect->x2 - rect->x1);

+		dst_ptr += (rect->x2 - rect->x1);

+	}

 }

 

 rt_uint8_t * rt_hw_lcd_get_framebuffer(void)

 {

-	return (rt_uint8_t *)_rt_hw_framebuffer;

+	return (rt_uint8_t *)_rt_framebuffer;

 }

 

 void rt_hw_lcd_set_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)

 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		_rt_hw_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

+		_rt_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

 	}

 }

 

@@ -190,7 +206,7 @@ void rt_hw_lcd_get_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)
 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		*c = rtgui_color_from_565p(_rt_hw_framebuffer[(y)][(x)]);

+		*c = rtgui_color_from_565p(_rt_framebuffer[(y)][(x)]);

 	}

 

     return ;

@@ -206,7 +222,7 @@ void rt_hw_lcd_draw_hline(rtgui_color_t *c, rt_base_t x1, rt_base_t x2, rt_base_
 

 	for (idx = x1; idx < x2; idx ++)

 	{

-		_rt_hw_framebuffer[y][idx] = color;

+		_rt_framebuffer[y][idx] = color;

 	}

 }

 

@@ -220,13 +236,13 @@ void rt_hw_lcd_draw_vline(rtgui_color_t *c, rt_base_t x, rt_base_t y1, rt_base_t
 

 	for (idy = y1; idy < y2; idy ++)

 	{

-		_rt_hw_framebuffer[idy][x] = color;

+		_rt_framebuffer[idy][x] = color;

 	}

 }

 

 void rt_hw_lcd_draw_raw_hline(rt_uint8_t *pixels, rt_base_t x1, rt_base_t x2, rt_base_t y)

 {

-    rt_memcpy((void*)&_rt_hw_framebuffer[y][x1], pixels, (x2 - x1) * 2);

+    rt_memcpy((void*)&_rt_framebuffer[y][x1], pixels, (x2 - x1) * 2);

 }

 

 struct rtgui_graphic_driver _rtgui_lcd_driver =

diff --git a/bsp/mini2440/lcd_t35.c b/bsp/mini2440/lcd_t35.c
index a9f5d1f716..75816b2ea6 100644
--- a/bsp/mini2440/lcd_t35.c
+++ b/bsp/mini2440/lcd_t35.c
@@ -111,6 +111,7 @@
 

 #define	S3C2410_LCDINT_FRSYNC	(1<<1)

 

+volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];

 

 void lcd_power_enable(int invpwren,int pwren)

@@ -170,19 +171,34 @@ void LcdBkLtSet(rt_uint32_t HiRatio)
 

 void rt_hw_lcd_update(rtgui_rect_t *rect)

 {

-	/* nothing */

+	rt_uint16_t *src_ptr, *dst_ptr;

+	rt_uint32_t pitch, index;

+

+	pitch = 2 * (rect->x2 - rect->x1);

+

+	/* copy from framebuffer to physical framebuffer */

+	src_ptr = &_rt_framebuffer[rect->x1][rect->y1];

+	dst_ptr = &_rt_hw_framebuffer[rect->x1][rect->y1];

+

+	for (index = rect->y1; index < rect->y2; index ++)

+	{

+		memcpy(dst_ptr, src_ptr, pitch);

+

+		src_ptr += (rect->x2 - rect->x1);

+		dst_ptr += (rect->x2 - rect->x1);

+	}

 }

 

 rt_uint8_t * rt_hw_lcd_get_framebuffer(void)

 {

-	return (rt_uint8_t *)_rt_hw_framebuffer;

+	return (rt_uint8_t *)_rt_framebuffer;

 }

 

 void rt_hw_lcd_set_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)

 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		_rt_hw_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

+		_rt_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);

 	}

 }

 

@@ -190,7 +206,7 @@ void rt_hw_lcd_get_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)
 {

     if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)

 	{

-		*c = rtgui_color_from_565p(_rt_hw_framebuffer[(y)][(x)]);

+		*c = rtgui_color_from_565p(_rt_framebuffer[(y)][(x)]);

 	}

 

     return ;

@@ -206,7 +222,7 @@ void rt_hw_lcd_draw_hline(rtgui_color_t *c, rt_base_t x1, rt_base_t x2, rt_base_
 

 	for (idx = x1; idx < x2; idx ++)

 	{

-		_rt_hw_framebuffer[y][idx] = color;

+		_rt_framebuffer[y][idx] = color;

 	}

 }

 

@@ -220,13 +236,13 @@ void rt_hw_lcd_draw_vline(rtgui_color_t *c, rt_base_t x, rt_base_t y1, rt_base_t
 

 	for (idy = y1; idy < y2; idy ++)

 	{

-		_rt_hw_framebuffer[idy][x] = color;

+		_rt_framebuffer[idy][x] = color;

 	}

 }

 

 void rt_hw_lcd_draw_raw_hline(rt_uint8_t *pixels, rt_base_t x1, rt_base_t x2, rt_base_t y)

 {

-    rt_memcpy((void*)&_rt_hw_framebuffer[y][x1], pixels, (x2 - x1) * 2);

+    rt_memcpy((void*)&_rt_framebuffer[y][x1], pixels, (x2 - x1) * 2);

 }

 

 struct rtgui_graphic_driver _rtgui_lcd_driver =