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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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6
firmware/target/arm/olympus/mrobe-100/lcd-mr100.c
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@ -232,6 +232,7 @@ void lcd_update(void)
cmd1 = LCD_CNTL_HIGHCOL | (((xoffset) >> 4) & 0xf);
cmd2 = LCD_CNTL_LOWCOL | ((xoffset) & 0xf);
void* (*fbaddr)(int x, int y) = FB_CURRENTVP_BUFFER->get_address_fn;
/* Copy display bitmap to hardware */
for (y = 0; y < LCD_FBHEIGHT; y++)
{
@ -239,7 +240,7 @@ void lcd_update(void)
lcd_write_command(cmd1);
lcd_write_command(cmd2);
lcd_write_data (FBADDR(0, y), LCD_WIDTH);
lcd_write_data (fbaddr(0,y), LCD_WIDTH);
}
}
@ -264,6 +265,7 @@ void lcd_update_rect(int x, int y, int width, int height)
cmd1 = LCD_CNTL_HIGHCOL | (((x + xoffset) >> 4) & 0xf);
cmd2 = LCD_CNTL_LOWCOL | ((x + xoffset) & 0xf);
void* (*fbaddr)(int x, int y) = FB_CURRENTVP_BUFFER->get_address_fn;
/* Copy specified rectange bitmap to hardware */
for (; y <= ymax; y++)
{
@ -271,6 +273,6 @@ void lcd_update_rect(int x, int y, int width, int height)
lcd_write_command(cmd1);
lcd_write_command(cmd2);
lcd_write_data (FBADDR(x,y), width);
lcd_write_data (fbaddr(x,y), width);
}
}