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Lcd save function pointer to frame buffer get_address_fn before loops

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Calling multiple levels of indirection in a loop slows things down

Really these need to be rewritten to take a start and end address
like most of the rest of the codebase

But this is safer without having test hardware in hand

Change-Id: Idae7b92ee779d020ed7fcc9334e2d5a9c710e64d
This commit is contained in:
William Wilgus 2022-03-21 18:54:52 -04:00
parent 60e5786b48
commit cfeeb7889d
23 changed files with 78 additions and 40 deletions
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3
firmware/target/arm/samsung/yh920/lcd-yh920.c
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@ -253,13 +253,14 @@ void lcd_update_rect(int x, int y, int width, int height)
if(ymax >= LCD_FBHEIGHT)
ymax = LCD_FBHEIGHT-1;
void* (*fbaddr)(int x, int y) = FB_CURRENTVP_BUFFER->get_address_fn;
/* Copy specified rectange bitmap to hardware */
for (; y <= ymax; y++)
{
lcd_write_reg(LCD_CNTL_PAGE, y);
lcd_write_reg(LCD_CNTL_COLUMN, x);
addr = FBADDR(x,y);
addr = fbaddr(x,y);
lcd_send_cmd(LCD_CNTL_DATA_WRITE);
lcd_write_data(addr, width);