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ypr0: Use generic lcd memframe driver.

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This commit is contained in:
Thomas Martitz 2012-01-07 23:30:53 +01:00
parent 094cbd586f
commit 5e9b62cd8a
4 changed files with 30 additions and 53 deletions
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53
firmware/target/hosted/ypr0/lcd-ypr0.c
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@ -33,59 +33,8 @@
#include "screendump.h"
#include "lcd.h"
/* eqivalent to fb + y*width + x */
#define LCDADDR(x, y) (&lcd_framebuffer[(y)][(x)])
static int dev_fd = 0;
static fb_data *dev_fb = 0;
void lcd_update(void)
{
/* update the entire display */
memcpy(dev_fb, lcd_framebuffer, sizeof(lcd_framebuffer));
}
/* Copy Rockbox frame buffer to the mmapped lcd device */
void lcd_update_rect(int x, int y, int width, int height)
{
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) ||
(y >= LCD_HEIGHT) || (x + width <= 0) || (y + height <= 0))
return;
/* do the necessary clipping */
if (x < 0)
{ /* clip left */
width += x;
x = 0;
}
if (y < 0)
{ /* clip top */
height += y;
y = 0;
}
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* clip right */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* clip bottom */
fb_data* src = LCDADDR(x, y);
fb_data* dst = dev_fb + y*LCD_WIDTH + x;
if (LCD_WIDTH == width)
{ /* optimized full-width update */
memcpy(dst, src, width * height * sizeof(fb_data));
}
else
{ /* row by row */
do
{
memcpy(dst, src, width * sizeof(fb_data));
src += LCD_WIDTH;
dst += LCD_WIDTH;
} while(--height > 0);
}
}
fb_data *dev_fb = 0;
void lcd_shutdown(void)
{